3837 changed files with 66898 additions and 137107 deletions
--- a/.forgejo/CODEOWNERS
+++ b/.forgejo/CODEOWNERS
@ -1,96 +0,0 @@
 # This file describes the expected reviewers for a PR based on the changed
 # files. Unlike what the name of the file suggests they don't own the code, but
 # merely have a good understanding of that area of the codebase and therefore
 # are usually suited as a reviewer.
 # Lines in this file match changed paths via Go-Style regular expressions:
 # https://pkg.go.dev/regexp/syntax
 # Mind the alphabetical order
 # avcodec
 # =======
 libavcodec/.*aac.* @lynne
 libavcodec/.*ac3.* @lynne
 libavcodec/.*atrac9.* @lynne
 libavcodec/.*bitpacked.* @lynne
 libavcodec/.*d3d12va.* @jianhuaw
 libavcodec/.*dirac.* @lynne
 libavcodec/.*ffv1.* @lynne @michaelni
 libavcodec/golomb.* @michaelni
 libavcodec/.*h266.* @frankplow @NuoMi @jianhuaw
 libavcodec/h26x/.* @frankplow @NuoMi @jianhuaw
 libavcodec/.*jpegxl.* @lynne @Traneptora
 libavcodec/.*jxl.* @lynne @Traneptora
 libavcodec/.*opus.* @lynne
 libavcodec/.*png.* @Traneptora
 libavcodec/.*prores.* @lynne
 libavcodec/rangecoder.* @michaelni
 libavcodec/ratecontrol.* @michaelni
 libavcodec/.*siren.* @lynne
 libavcodec/.*vc2.* @lynne
 libavcodec/.*vvc.* @frankplow @NuoMi @jianhuaw
 libavcodec/aarch64/.* @lynne @mstorsjo
 libavcodec/arm/.* @mstorsjo
 libavcodec/ppc/.* @sean_mcg
 libavcodec/x86/.* @lynne
 # avfilter
 # =======
 libavfilter/aarch64/.* @mstorsjo
 libavfilter/af_whisper.* @vpalmisano
 libavfilter/vf_yadif.* @michaelni
 libavfilter/vsrc_mandelbrot.* @michaelni
 # avformat
 # =======
 libavformat/iamf.* @jamrial
 libavformat/.*jpegxl.* @Traneptora
 libavformat/.*jxl.* @Traneptora
 # avutil
 # ======
 libavutil/.*crc.* @lynne @michaelni
 libavutil/.*d3d12va.* @jianhuaw
 libavutil/eval.* @michaelni
 libavutil/iamf.* @jamrial
 libavutil/integer.* @michaelni
 libavutil/lfg.* @michaelni
 libavutil/lls.* @michaelni
 libavutil/md5.* @michaelni
 libavutil/mathematics.* @michaelni
 libavutil/mem.* @michaelni
 libavutil/qsort.* @michaelni
 libavutil/random_seed.* @michaelni
 libavutil/rational.* @michaelni
 libavutil/sfc.* @michaelni
 libavutil/softfloat.* @michaelni
 libavutil/tree.* @michaelni
 libavutil/tx.* @lynne
 libavutil/aarch64/.* @lynne @mstorsjo
 libavutil/arm/.* @mstorsjo
 libavutil/ppc/.* @sean_mcg
 libavutil/x86/.* @lynne
 # swresample
 # =======
 libswresample/aarch64/.* @mstorsjo
 libswresample/arm/.* @mstorsjo
 libswresample/.* @michaelni
 # swscale
 # =======
 libswscale/aarch64/.* @mstorsjo
 libswscale/arm/.* @mstorsjo
 libswscale/ppc/.* @sean_mcg
 # doc
 # ===
 doc/.* @GyanD
 # Frameworks
 # ==========
 .*d3d12va.* @jianhuaw
 .*vulkan.* @lynne
--- a/.forgejo/ISSUE_TEMPLATE.md
+++ b/.forgejo/ISSUE_TEMPLATE.md
@ -1,9 +0,0 @@
 # Summary of the bug
 Briefly describe the issue you're experiencing. Include any error messages, unexpected behavior, or relevant observations.
 # Steps to reproduce
 List the steps required to trigger the bug.
 Include the exact CLI command used, if any.
 Provide sample input files, logs, or scripts if available.
--- a/.forgejo/labeler/labeler.js
+++ b/.forgejo/labeler/labeler.js
@ -1,72 +0,0 @@
 module.exports = async ({github, context}) => {
    const title = (context.payload.pull_request?.title || context.payload.issue?.title || '').toLowerCase();
    const labels = [];
    const issueNumber = context.payload.pull_request?.number || context.payload.issue?.number;
    const kwmap = {
      'avcodec': 'avcodec',
      'avdevice': 'avdevice',
      'avfilter': 'avfilter',
      'avformat': 'avformat',
      'avutil': 'avutil',
      'swresample': 'swresample',
      'swscale': 'swscale',
      'fftools': 'CLI'
    };
    async function isOrgMember(username) {
        try {
            const response = await github.rest.orgs.checkMembershipForUser({
                org: context.repo.owner,
                username: username
            });
            return response.status === 204;
        } catch (error) {
            return false;
        }
    }
    if (context.payload.action === 'closed' ||
        (context.payload.action !== 'opened' && (
             context.payload.action === 'assigned' ||
             context.payload.action === 'label_updated' ||
             context.payload.comment) &&
         await isOrgMember(context.payload.sender.login))
    ) {
        try {
            await github.rest.issues.removeLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: issueNumber,
                // this should say 'new', but forgejo deviates from GitHub API here and expects the ID
                name: '41'
            });
            console.log('Removed "new" label');
        } catch (error) {
            if (error.status !== 404 && error.status !== 410) {
                console.log('Could not remove "new" label');
            }
        }
    } else if (context.payload.action === 'opened') {
        labels.push('new');
        console.log('Detected label: new');
    }
    if ((context.payload.action === 'opened' || context.payload.action === 'edited') && context.eventName !== 'issue_comment') {
        for (const [kw, label] of Object.entries(kwmap)) {
            if (title.includes(kw)) {
                labels.push(label);
                console.log('Detected label: ' + label);
            }
        }
    }
    if (labels.length > 0) {
        await github.rest.issues.addLabels({
            owner: context.repo.owner,
            repo: context.repo.repo,
            issue_number: issueNumber,
            labels: labels,
        });
    }
 }
--- a/.forgejo/labeler/labeler.yml
+++ b/.forgejo/labeler/labeler.yml
@ -1,31 +0,0 @@
 avcodec:
  - changed-files:
    - any-glob-to-any-file: libavcodec/**
 avdevice:
  - changed-files:
    - any-glob-to-any-file: libavdevice/**
 avfilter:
  - changed-files:
    - any-glob-to-any-file: libavfilter/**
 avformat:
  - changed-files:
    - any-glob-to-any-file: libavformat/**
 avutil:
  - changed-files:
    - any-glob-to-any-file: libavutil/**
 swresample:
  - changed-files:
    - any-glob-to-any-file: libswresample/**
 swscale:
  - changed-files:
    - any-glob-to-any-file: libswscale/**
 CLI:
  - changed-files:
    - any-glob-to-any-file: fftools/**
--- a/.forgejo/pre-commit/config.yaml
+++ b/.forgejo/pre-commit/config.yaml
@ -1,28 +0,0 @@
 exclude: ^tests/ref/
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
  rev: v5.0.0
  hooks:
    - id: check-case-conflict
    - id: check-executables-have-shebangs
    - id: check-illegal-windows-names
    - id: check-shebang-scripts-are-executable
    - id: check-yaml
    - id: end-of-file-fixer
    - id: file-contents-sorter
      files:
        .forgejo/pre-commit/ignored-words.txt
      args:
        - --ignore-case
    - id: fix-byte-order-marker
    - id: mixed-line-ending
    - id: trailing-whitespace
 - repo: https://github.com/codespell-project/codespell
  rev: v2.4.1
  hooks:
    - id: codespell
      args:
        - --ignore-words=.forgejo/pre-commit/ignored-words.txt
        - --ignore-multiline-regex=codespell:off.*?(codespell:on|\Z)
      exclude: ^tools/(patcheck|clean-diff)$
--- a/.forgejo/pre-commit/ignored-words.txt
+++ b/.forgejo/pre-commit/ignored-words.txt
@ -1,119 +0,0 @@
 abl
 ACN
 acount
 addin
 alis
 alls
 ALOG
 ALS
 als
 ANC
 anc
 ANS
 ans
 anull
 basf
 bloc
 brane
 BREIF
 BU
 bu
 bufer
 CAF
 caf
 clen
 clens
 Collet
 compre
 dum
 endin
 erro
 FIEL
 fiel
 filp
 fils
 FILTERD
 filterd
 fle
 fo
 FPR
 fro
 Hald
 indx
 ine
 inh
 inout
 inouts
 inport
 ist
 LAF
 laf
 lastr
 LinS
 mapp
 mis
 mot
 nd
 nIn
 offsetp
 orderd
 ot
 outout
 padd
 PAETH
 paeth
 PARM
 parm
 parms
 pEvents
 PixelX
 Psot
 quater
 readd
 recuse
 redY
 Reencode
 reencode
 remaind
 renderD
 rin
 SAV
 SEH
 SER
 ser
 setts
 shft
 SIZ
 siz
 skipd
 sme
 som
 sover
 STAP
 startd
 statics
 struc
 suble
 TE
 tE
 te
 tha
 tne
 tolen
 tpye
 tre
 TRUN
 trun
 truns
 Tung
 TYE
 ue
 UES
 ues
 vai
 vas
 vie
 VILL
 vor
 wel
 wih
--- a/.forgejo/workflows/autolabel.yml
+++ b/.forgejo/workflows/autolabel.yml
@ -1,28 +0,0 @@
 on:
  pull_request_target:
    types: [opened, edited, synchronize, closed, assigned, labeled, unlabeled]
  issues:
    types: [opened, edited, closed, assigned, labeled, unlabeled]
  issue_comment:
    types: [created]
 jobs:
  pr_labeler:
    runs-on: utilities
    if: ${{ github.event.sender.login != 'ffmpeg-devel' }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Label by file-changes
        uses: https://github.com/actions/labeler@v5
        if: ${{ forge.event_name == 'pull_request_target' }}
        with:
          configuration-path: .forgejo/labeler/labeler.yml
          repo-token: ${{ secrets.AUTOLABELER_TOKEN }}
      - name: Label by title-match
        uses: https://github.com/actions/github-script@v7
        with:
          script: |
            const script = require('.forgejo/labeler/labeler.js')
            await script({github, context})
          github-token: ${{ secrets.AUTOLABELER_TOKEN }}
--- a/.forgejo/workflows/lint.yml
+++ b/.forgejo/workflows/lint.yml
@ -1,26 +0,0 @@
 on:
  push:
    branches:
      - master
  pull_request:
 jobs:
  lint:
    runs-on: utilities
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install pre-commit CI
        id: install
        run: |
            python3 -m venv ~/pre-commit
            ~/pre-commit/bin/pip install --upgrade pip setuptools
            ~/pre-commit/bin/pip install pre-commit
            echo "envhash=$({ python3 --version && cat .forgejo/pre-commit/config.yaml; } | sha256sum | cut -d' ' -f1)" >> $FORGEJO_OUTPUT
      - name: Cache
        uses: actions/cache@v4
        with:
          path: ~/.cache/pre-commit
          key: pre-commit-${{ steps.install.outputs.envhash }}
      - name: Run pre-commit CI
        run: ~/pre-commit/bin/pre-commit run -c .forgejo/pre-commit/config.yaml --show-diff-on-failure --color=always --all-files
--- a/.forgejo/workflows/test.yml
+++ b/.forgejo/workflows/test.yml
@ -1,59 +0,0 @@
 on:
  push:
    branches:
      - master
  pull_request:
 jobs:
  run_fate:
    strategy:
      fail-fast: false
      matrix:
        runner: [linux-amd64,linux-aarch64]
    runs-on: ${{ matrix.runner }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Configure
        run: ./configure --enable-gpl --enable-nonfree --enable-memory-poisoning --assert-level=2
      - name: Build
        run: make -j$(nproc)
      - name: Restore Cached Fate-Suite
        id: cache
        uses: actions/cache/restore@v4
        with:
          path: fate-suite
          key: fate-suite
          restore-keys: |
            fate-suite-
      - name: Sync Fate-Suite
        id: fate
        run: |
          make fate-rsync SAMPLES=$PWD/fate-suite
          echo "hash=$(find fate-suite -type f | sort | sha256sum | cut -d' ' -f1)" >> $FORGEJO_OUTPUT
      - name: Cache Fate-Suite
        uses: actions/cache/save@v4
        if: ${{ format('fate-suite-{0}', steps.fate.outputs.hash) != steps.cache.outputs.cache-matched-key }}
        with:
          path: fate-suite
          key: fate-suite-${{ steps.fate.outputs.hash }}
      - name: Run Fate
        run: make fate SAMPLES=$PWD/fate-suite -j$(nproc)
  compile_only:
    strategy:
      fail-fast: false
      matrix:
        image: ["ghcr.io/btbn/ffmpeg-builds/win64-gpl:latest"]
    runs-on: linux-amd64
    container: ${{ matrix.image }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Configure
        run: |
          ./configure --pkg-config-flags="--static" $FFBUILD_TARGET_FLAGS $FF_CONFIGURE \
              --cc="$CC" --cxx="$CXX" --ar="$AR" --ranlib="$RANLIB" --nm="$NM" \
              --extra-cflags="$FF_CFLAGS" --extra-cxxflags="$FF_CXXFLAGS" \
              --extra-libs="$FF_LIBS" --extra-ldflags="$FF_LDFLAGS" --extra-ldexeflags="$FF_LDEXEFLAGS"
      - name: Build
        run: make -j$(nproc)
--- a/.gitattributes
+++ b/.gitattributes
@ -1,2 +1 @@
 *.pnm -diff -text
 Changelog    merge=union
--- a/.gitignore
+++ b/.gitignore
@ -1,6 +1,5 @@
 *.a
 *.o
 *.objs
 *.o.*
 *.d
 *.def
@ -42,7 +41,3 @@
 /src
 /mapfile
 /tools/python/__pycache__/
 /libavcodec/vulkan/*.c
 /libavfilter/vulkan/*.c
 /.*/
 !/.forgejo/
--- a/.mailmap
+++ b/.mailmap
@ -26,5 +26,3 @@ rcombs <rcombs@rcombs.me> <rodger.combs@gmail.com>
 Cosmin Stejerean <cosmin@cosmin.at> Cosmin Stejerean via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
 <wutong1208@outlook.com> <tong1.wu-at-intel.com@ffmpeg.org>
 <wutong1208@outlook.com> <tong1.wu@intel.com>
 <toqsxw@outlook.com> <jianhua.wu-at-intel.com@ffmpeg.org>
 <toqsxw@outlook.com> <jianhua.wu@intel.com>
--- a/COPYING.LGPLv2.1
+++ b/COPYING.LGPLv2.1
@ -55,7 +55,7 @@ modified by someone else and passed on, the recipients should know
 that what they have is not the original version, so that the original
 author's reputation will not be affected by problems that might be
 introduced by others.
-
+
  Finally, software patents pose a constant threat to the existence of
 any free program.  We wish to make sure that a company cannot
 effectively restrict the users of a free program by obtaining a
@ -111,7 +111,7 @@ modification follow.  Pay close attention to the difference between a
 "work based on the library" and a "work that uses the library".  The
 former contains code derived from the library, whereas the latter must
 be combined with the library in order to run.
-
+
                  GNU LESSER GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@ -158,7 +158,7 @@ Library.
  You may charge a fee for the physical act of transferring a copy,
 and you may at your option offer warranty protection in exchange for a
 fee.
-
+
  2. You may modify your copy or copies of the Library or any portion
 of it, thus forming a work based on the Library, and copy and
 distribute such modifications or work under the terms of Section 1
@ -216,7 +216,7 @@ instead of to this License.  (If a newer version than version 2 of the
 ordinary GNU General Public License has appeared, then you can specify
 that version instead if you wish.)  Do not make any other change in
 these notices.
-
+
  Once this change is made in a given copy, it is irreversible for
 that copy, so the ordinary GNU General Public License applies to all
 subsequent copies and derivative works made from that copy.
@ -267,7 +267,7 @@ Library will still fall under Section 6.)
 distribute the object code for the work under the terms of Section 6.
 Any executables containing that work also fall under Section 6,
 whether or not they are linked directly with the Library itself.
-
+
  6. As an exception to the Sections above, you may also combine or
 link a "work that uses the Library" with the Library to produce a
 work containing portions of the Library, and distribute that work
@ -329,7 +329,7 @@ restrictions of other proprietary libraries that do not normally
 accompany the operating system.  Such a contradiction means you cannot
 use both them and the Library together in an executable that you
 distribute.
-
+
  7. You may place library facilities that are a work based on the
 Library side-by-side in a single library together with other library
 facilities not covered by this License, and distribute such a combined
@ -370,7 +370,7 @@ subject to these terms and conditions.  You may not impose any further
 restrictions on the recipients' exercise of the rights granted herein.
 You are not responsible for enforcing compliance by third parties with
 this License.
-
+
  11. If, as a consequence of a court judgment or allegation of patent
 infringement or for any other reason (not limited to patent issues),
 conditions are imposed on you (whether by court order, agreement or
@ -422,7 +422,7 @@ conditions either of that version or of any later version published by
 the Free Software Foundation.  If the Library does not specify a
 license version number, you may choose any version ever published by
 the Free Software Foundation.
-
+
  14. If you wish to incorporate parts of the Library into other free
 programs whose distribution conditions are incompatible with these,
 write to the author to ask for permission.  For software which is
@ -456,7 +456,7 @@ SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
                     END OF TERMS AND CONDITIONS
-
+
           How to Apply These Terms to Your New Libraries
  If you develop a new library, and you want it to be of the greatest
--- a/54
+++ b/54
@ -1,45 +1,6 @@
 Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.
 version <next>:
 version 8.0:
 - Whisper filter
 - Drop support for OpenSSL < 1.1.0
 - Enable TLS peer certificate verification by default (on next major version bump)
 - Drop support for OpenSSL < 1.1.1
 - yasm support dropped, users need to use nasm
 - VVC VAAPI decoder
 - RealVideo 6.0 decoder
 - OpenMAX encoders deprecated
 - libx265 alpha layer encoding
 - ADPCM IMA Xbox decoder
 - Enhanced FLV v2: Multitrack audio/video, modern codec support
 - Animated JPEG XL encoding (via libjxl)
 - VVC in Matroska
 - CENC AV1 support in MP4 muxer
 - pngenc: set default prediction method to PAETH
 - APV decoder and APV raw bitstream muxing and demuxing
 - APV parser
 - APV encoding support through a libopenapv wrapper
 - VVC decoder supports all content of SCC (Screen Content Coding):
  IBC (Inter Block Copy), Palette Mode and ACT (Adaptive Color Transform
 - G.728 decoder
 - pad_cuda filter
 - Sanyo LD-ADPCM decoder
 - APV in MP4/ISOBMFF muxing and demuxing
 - OpenHarmony hardware decoder/encoder
 - Colordetect filter
 - Add vf_scale_d3d11 filter
 - No longer disabling GCC autovectorization, on X86, ARM and AArch64
 - VP9 Vulkan hwaccel
 - AV1 Vulkan encoder
 - ProRes RAW decoder
 - ProRes RAW Vulkan hwaccel
 - ffprobe -codec option
 version 7.1:
 - Raw Captions with Time (RCWT) closed caption demuxer
 - LC3/LC3plus decoding/encoding using external library liblc3
@ -66,20 +27,6 @@ version 7.1:
 - LCEVC enhancement data exporting in H.26x and MP4/ISOBMFF
 - LCEVC filter
 - MV-HEVC decoding
 - minor stream specifier syntax changes:
    - when matching by metadata (:m:<key>:<val>), the colon character
      in keys or values now has to be backslash-escaped
    - in optional maps (-map ....?) with a metadata-matching stream specifier,
      the value has to be separated from the question mark by a colon, i.e.
      -map ....:m:<key>:<val>:? (otherwise it would be ambiguous whether the
      question mark is a part of <val> or not)
    - multiple stream types in a single specifier (e.g. :s:s:0) now cause an
      error, as such a specifier makes no sense
 - Mastering Display and Content Light Level metadata support in hevc_nvenc
  and av1_nvenc encoders
 - libswresample now accepts custom order channel layouts as input, with some
  constrains
 - FFV1 parser
 version 7.0:
@ -168,7 +115,6 @@ version 6.1:
  variable-fields elements within the same parent element
 - ffprobe -output_format option added as an alias of -of
 # codespell:off
 version 6.0:
 - Radiance HDR image support
--- a/FUNDING.json
+++ b/FUNDING.json
@ -1,7 +0,0 @@
 {
  "drips": {
    "ethereum": {
      "ownedBy": "0x2f3900e7064eE63D30d749971265858612AA7139"
    }
  }
 }
--- a/INSTALL.md
+++ b/INSTALL.md
@ -1,8 +1,5 @@
 ## Installing FFmpeg
 0. If you like to include source plugins, merge them before configure
 for example run tools/merge-all-source-plugins
 1. Type `./configure` to create the configuration. A list of configure
 options is printed by running `configure --help`.
@ -18,11 +15,3 @@ NOTICE
 ------
 - Non system dependencies (e.g. libx264, libvpx) are disabled by default.
 NOTICE for Package Maintainers
 ------------------------------
 - It is recommended to build FFmpeg twice, first with minimal external dependencies so
   that 3rd party packages, which depend on FFmpegs libavutil/libavfilter/libavcodec/libavformat
   can then be built. And last build FFmpeg with full dependencies (which may in turn depend on
   some of these 3rd party packages). This avoids circular dependencies during build.
--- a/LICENSE.md
+++ b/LICENSE.md
@ -12,6 +12,7 @@ configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
 Specifically, the GPL parts of FFmpeg are:
 - libpostproc
 - optional x86 optimization in the files
    - `libavcodec/x86/flac_dsp_gpl.asm`
    - `libavcodec/x86/idct_mmx.c`
@ -44,6 +45,7 @@ Specifically, the GPL parts of FFmpeg are:
    - `vf_owdenoise.c`
    - `vf_perspective.c`
    - `vf_phase.c`
    - `vf_pp.c`
    - `vf_pp7.c`
    - `vf_pullup.c`
    - `vf_repeatfields.c`
--- a/30
+++ b/30
@ -45,20 +45,17 @@ Commandline utility code:
 QuickTime faststart:
  tools/qt-faststart.c                  Baptiste Coudurier
 Execution Graph Printing
  fftools/graph, fftools/resources  [2] softworkz
 Miscellaneous Areas
 ===================
 documentation                           Stefano Sabatini, Mike Melanson, Timothy Gu, Gyan Doshi
-project server day to day operations    (L: root@ffmpeg.org) Michael Niedermayer, Reimar Doeffinger, Alexander Strasser, Nikolay Aleksandrov, Timo Rothenpieler
+project server day to day operations    (L: root@ffmpeg.org) Árpád Gereöffy, Michael Niedermayer, Reimar Doeffinger, Alexander Strasser, Nikolay Aleksandrov, Timo Rothenpieler
-project server emergencies              (L: root@ffmpeg.org) Reimar Doeffinger, Alexander Strasser, Nikolay Aleksandrov, Timo Rothenpieler
+project server emergencies              (L: root@ffmpeg.org) Árpád Gereöffy, Reimar Doeffinger, Alexander Strasser, Nikolay Aleksandrov, Timo Rothenpieler
 presets                             [0]
 metadata subsystem                      Aurelien Jacobs
 release management                      Michael Niedermayer
 API tests                           [0]
 samples-request                     [2] Thilo Borgmann, James Almer, Ben Littler
 Communication
@ -85,14 +82,12 @@ Other:
  aes_ctr.c, aes_ctr.h                  Eran Kornblau
  bprint                                Nicolas George
  bswap.h
  csp.c, csp.h                          Leo Izen, Ronald S. Bultje
  des                                   Reimar Doeffinger
  dynarray.h                            Nicolas George
  eval.c, eval.h                    [2] Michael Niedermayer
  float_dsp                             Loren Merritt
  hash                                  Reimar Doeffinger
  hwcontext_cuda*                       Timo Rothenpieler
  hwcontext_d3d12va*                    Wu Jianhua
  hwcontext_vulkan*                 [2] Lynne
  intfloat*                             Michael Niedermayer
  integer.c, integer.h                  Michael Niedermayer
@ -138,6 +133,8 @@ Generic Parts:
    ratecontrol.c                   [2] Michael Niedermayer
  simple IDCT:
    simple_idct.c, simple_idct.h    [2] Michael Niedermayer
  postprocessing:
    libpostproc/*                   [2] Michael Niedermayer
  table generation:
    tableprint.c, tableprint.h          Reimar Doeffinger
  fixed point FFT:
@ -179,7 +176,6 @@ Codecs:
  dss_sp.c                              Oleksij Rempel
  dv.c                                  Roman Shaposhnik
  dvbsubdec.c                           Anshul Maheshwari
  dxv.*, dxvenc.*                       Emma Worley
  eacmv*, eaidct*, eat*                 Peter Ross
  exif.c, exif.h                        Thilo Borgmann
  ffv1*                             [2] Michael Niedermayer
@ -210,6 +206,7 @@ Codecs:
  libgsm.c                              Michel Bardiaux
  libkvazaar.c                          Arttu Ylä-Outinen
  libopenh264enc.c                      Martin Storsjo, Linjie Fu
  libopenjpeg.c                         Jaikrishnan Menon
  libopenjpegenc.c                      Michael Bradshaw
  libtheoraenc.c                        David Conrad
  libvorbis.c                           David Conrad
@ -247,7 +244,6 @@ Codecs:
  rpza.c                                Roberto Togni
  rtjpeg.c, rtjpeg.h                    Reimar Doeffinger
  rv10.c                                Michael Niedermayer
  sanm.c                                Manuel Lauss
  smc.c                                 Mike Melanson
  snow*                                 Michael Niedermayer, Loren Merritt
  sonic.c                               Alex Beregszaszi
@ -270,7 +266,7 @@ Codecs:
  vp8                                   David Conrad, Ronald Bultje
  vp9                                   Ronald Bultje
  vqavideo.c                            Mike Melanson
-  vvc                               [2] Nuo Mi, Wu Jianhua, Frank Plowman
+  vvc                               [2] Nuo Mi
  wmaprodec.c                           Sascha Sommer
  wmavoice.c                            Ronald S. Bultje
  wmv2.c                                Michael Niedermayer
@ -280,7 +276,6 @@ Codecs:
 Hardware acceleration:
  dxva2*                                Hendrik Leppkes, Laurent Aimar, Steve Lhomme
  d3d11va*                              Steve Lhomme
  d3d12va*                              Wu Jianhua
  d3d12va_encode*                       Tong Wu
  mediacodec*                           Matthieu Bouron, Aman Gupta, Zhao Zhili
  vaapi*                                Haihao Xiang
@ -396,7 +391,7 @@ Muxers/Demuxers:
  dss.c                                 Oleksij Rempel
  dtsdec.c                              foo86
  dv.c                                  Roman Shaposhnik
-  dvdvideodec.c                     [2] Marth64
+  dvdvideodec.c                         Marth64
  electronicarts.c                      Peter Ross
  evc*                                  Samsung (Dawid Kozinski)
  ffm*                                  Baptiste Coudurier
@ -450,8 +445,7 @@ Muxers/Demuxers:
  pva.c                                 Ivo van Poorten
  r3d.c                                 Baptiste Coudurier
  raw.c                                 Michael Niedermayer
-  rcwtdec.c                         [2] Marth64
+  rcwtenc.c                             Marth64
  rcwtenc.c                         [2] Marth64
  rdt.c                                 Ronald S. Bultje
  rl2.c                                 Sascha Sommer
  rmdec.c, rmenc.c                      Ronald S. Bultje
@ -470,7 +464,6 @@ Muxers/Demuxers:
  sdp.c                                 Martin Storsjo
  segafilm.c                            Mike Melanson
  segment.c                             Stefano Sabatini
  smush.c                               Manuel Lauss
  spdif*                                Anssi Hannula
  srtdec.c                              Aurelien Jacobs
  swf.c                                 Baptiste Coudurier
@ -518,10 +511,9 @@ Operating systems / CPU architectures
 Alpha                               [0]
 MIPS                                    Manojkumar Bhosale, Shiyou Yin
 LoongArch                           [2] Shiyou Yin
-Darwin (macOS, iOS)                 [2] Marvin Scholz
+Mac OS X / PowerPC                      Romain Dolbeau, Guillaume Poirier
 Mac OS X / PowerPC                  [0]
 Amiga / PowerPC                         Colin Ward
-Linux / PowerPC                     [1] Lauri Kasanen
+Linux / PowerPC                         Lauri Kasanen
 RISC-V                              [2] Rémi Denis-Courmont
 Windows MinGW                           Alex Beregszaszi, Ramiro Polla
 Windows Cygwin                          Victor Paesa
@ -549,7 +541,6 @@ James Darnley
 Jan Ekström
 Joakim Plate
 Jun Zhao
 Kacper Michajłow
 Kieran Kunhya
 Kirill Gavrilov
 Limin Wang
@ -591,7 +582,6 @@ Benoit Fouet                  B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
 Clément Bœsch                 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
 Daniel Verkamp                78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
 FFmpeg release signing key    FCF9 86EA 15E6 E293 A564 4F10 B432 2F04 D676 58D8
 Frank Plowman                 34E2 48D6 B7DF 4769 70C7 3304 03A8 4C6A 098F 2C6B
 Ganesh Ajjanagadde            C96A 848E 97C3 CEA2 AB72 5CE4 45F9 6A2D 3C36 FB1B
 Gwenole Beauchesne            2E63 B3A6 3E44 37E2 017D 2704 53C7 6266 B153 99C4
 Haihao Xiang (haihao)         1F0C 31E8 B4FE F7A4 4DC1 DC99 E0F5 76D4 76FC 437F
--- a/12
+++ b/12
@ -19,20 +19,14 @@ vpath %/fate_config.sh.template $(SRC_PATH)
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch
 HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
-ALLFFLIBS =            \
+ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale swresample
    avcodec            \
    avdevice           \
    avfilter           \
    avformat           \
    avutil             \
    swscale            \
    swresample         \
 # $(FFLIBS-yes) needs to be in linking order
 FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
 FFLIBS-$(CONFIG_AVFILTER)   += avfilter
 FFLIBS-$(CONFIG_AVFORMAT)   += avformat
 FFLIBS-$(CONFIG_AVCODEC)    += avcodec
 FFLIBS-$(CONFIG_POSTPROC)   += postproc
 FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
 FFLIBS-$(CONFIG_SWSCALE)    += swscale
@ -110,7 +104,7 @@ SUBDIR_VARS := CLEANFILES FFLIBS HOSTPROGS TESTPROGS TOOLS               \
               ALTIVEC-OBJS VSX-OBJS MMX-OBJS X86ASM-OBJS                \
               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSP-OBJS MSA-OBJS         \
               MMI-OBJS LSX-OBJS LASX-OBJS RV-OBJS RVV-OBJS RVVB-OBJS    \
-               OBJS SHLIBOBJS STLIBOBJS HOSTOBJS TESTOBJS SIMD128-OBJS
+               OBJS SLIBOBJS SHLIBOBJS STLIBOBJS HOSTOBJS TESTOBJS
 define RESET
 $(1) :=
--- a/2
+++ b/2
@ -1 +1 @@
-8.0.git
+7.0.git
--- a/compat/cuda/cuda_runtime.h
+++ b/compat/cuda/cuda_runtime.h
@ -189,7 +189,4 @@ static inline __device__ float __cosf(float a) { return __nvvm_cos_approx_f(a);
 static inline __device__ float __expf(float a) { return __nvvm_ex2_approx_f(a * (float)__builtin_log2(__builtin_exp(1))); }
 static inline __device__ float __powf(float a, float b) { return __nvvm_ex2_approx_f(__nvvm_lg2_approx_f(a) * b); }
 // Misc helper functions
 extern "C" __device__ int printf(const char*, ...);
 #endif /* COMPAT_CUDA_CUDA_RUNTIME_H */
--- a/compat/getopt.c
+++ b/compat/getopt.c
@ -38,7 +38,7 @@ static int optind = 1;
 static int optopt;
 static char *optarg;
-static int getopt(int argc, char *argv[], const char *opts)
+static int getopt(int argc, char *argv[], char *opts)
 {
    static int sp = 1;
    int c;
--- a/compat/solaris/make_sunver.pl
+++ b/compat/solaris/make_sunver.pl
@ -218,7 +218,7 @@ while (<F>) {
    # Lines of the form '} SOME_VERSION_NAME_1.0;'
    if (/^[ \t]*\}[ \tA-Z0-9_.a-z]+;[ \t]*$/) {
    $glob = 'glob';
-    # We tried to match symbols against this version, but none matched.
+    # We tried to match symbols agains this version, but none matched.
    # Emit dummy hidden symbol to avoid marking this version WEAK.
    if ($matches_attempted && $matched_symbols == 0) {
        print "  hidden:\n";
--- a/compat/w32pthreads.h
+++ b/compat/w32pthreads.h
@ -44,14 +44,13 @@
 #include "libavutil/internal.h"
 #include "libavutil/mem.h"
 #include "libavutil/time.h"
 #include "libavutil/wchar_filename.h"
 typedef struct pthread_t {
    void *handle;
    void *(*func)(void* arg);
    void *arg;
    void *ret;
-} *pthread_t;
+} pthread_t;
 /* use light weight mutex/condition variable API for Windows Vista and later */
 typedef SRWLOCK pthread_mutex_t;
@ -75,7 +74,7 @@ typedef CONDITION_VARIABLE pthread_cond_t;
 static av_unused THREADFUNC_RETTYPE
 __stdcall attribute_align_arg win32thread_worker(void *arg)
 {
-    pthread_t h = (pthread_t)arg;
+    pthread_t *h = (pthread_t*)arg;
    h->ret = h->func(h->arg);
    return 0;
 }
@ -83,35 +82,21 @@ __stdcall attribute_align_arg win32thread_worker(void *arg)
 static av_unused int pthread_create(pthread_t *thread, const void *unused_attr,
                                    void *(*start_routine)(void*), void *arg)
 {
-    pthread_t ret;
+    thread->func   = start_routine;
-
+    thread->arg    = arg;
    ret = av_mallocz(sizeof(*ret));
    if (!ret)
        return EAGAIN;
    ret->func   = start_routine;
    ret->arg    = arg;
 #if HAVE_WINRT
-    ret->handle = (void*)CreateThread(NULL, 0, win32thread_worker, ret,
+    thread->handle = (void*)CreateThread(NULL, 0, win32thread_worker, thread,
-                                      0, NULL);
+                                           0, NULL);
 #else
-    ret->handle = (void*)_beginthreadex(NULL, 0, win32thread_worker, ret,
+    thread->handle = (void*)_beginthreadex(NULL, 0, win32thread_worker, thread,
-                                        0, NULL);
+                                           0, NULL);
 #endif
-
+    return !thread->handle;
    if (!ret->handle) {
        av_free(ret);
        return EAGAIN;
    }
    *thread = ret;
    return 0;
 }
 static av_unused int pthread_join(pthread_t thread, void **value_ptr)
 {
-    DWORD ret = WaitForSingleObject(thread->handle, INFINITE);
+    DWORD ret = WaitForSingleObject(thread.handle, INFINITE);
    if (ret != WAIT_OBJECT_0) {
        if (ret == WAIT_ABANDONED)
            return EINVAL;
@ -119,9 +104,8 @@ static av_unused int pthread_join(pthread_t thread, void **value_ptr)
            return EDEADLK;
    }
    if (value_ptr)
-        *value_ptr = thread->ret;
+        *value_ptr = thread.ret;
-    CloseHandle(thread->handle);
+    CloseHandle(thread.handle);
    av_free(thread);
    return 0;
 }
@ -210,38 +194,4 @@ static inline int pthread_setcancelstate(int state, int *oldstate)
    return 0;
 }
 static inline int win32_thread_setname(const char *name)
 {
 #if !HAVE_UWP
    typedef HRESULT (WINAPI *SetThreadDescriptionFn)(HANDLE, PCWSTR);
    // Although SetThreadDescription lives in kernel32.dll, on Windows Server 2016,
    // Windows 10 LTSB 2016 and Windows 10 version 1607, it was only available in
    // kernelbase.dll. So, load it from there for maximum coverage.
    HMODULE kernelbase = GetModuleHandleW(L"kernelbase.dll");
    if (!kernelbase)
        return AVERROR(ENOSYS);
    SetThreadDescriptionFn pSetThreadDescription =
        (SetThreadDescriptionFn)GetProcAddress(kernelbase, "SetThreadDescription");
    if (!pSetThreadDescription)
        return AVERROR(ENOSYS);
    wchar_t *wname;
    if (utf8towchar(name, &wname) < 0)
        return AVERROR(ENOMEM);
    HRESULT hr = pSetThreadDescription(GetCurrentThread(), wname);
    av_free(wname);
    return SUCCEEDED(hr) ? 0 : AVERROR(EINVAL);
 #else
    // UWP is not supported because we cannot use LoadLibrary/GetProcAddress to
    // detect the availability of the SetThreadDescription API. There is a small
    // gap in Windows builds 1507-1607 where it was not available. UWP allows
    // querying the availability of APIs with QueryOptionalDelayLoadedAPI, but it
    // requires /DELAYLOAD:kernel32.dll during linking, and we cannot enforce that.
    return AVERROR(ENOSYS);
 #endif
 }
 #endif /* COMPAT_W32PTHREADS_H */
--- a/482
+++ b/482
--- a/doc/APIchanges
+++ b/doc/APIchanges
@ -1,222 +1,7 @@
-The last version increases of all libraries were on 2025-03-28
+The last version increases of all libraries were on 2024-03-07
 API changes, most recent first:
 2025-07-29 - 1c85a3832af - lavc 62.10.100 - smpte_436m.h
  Add a new public header smpte_436m.h with API for
  manipulating AV_CODEC_ID_SMPTE_436M_ANC data.
 2025-07-10 - a566fcb9dc0 - lavf 62.2.100
  mxf [de]muxer now uses AV_CODEC_ID_SMPTE_436M_ANC for
  the vbi_vanc_smpte_436M streams instead of AV_CODEC_ID_NONE.
 2025-07-10 - f4ff379baea - lavc 62.10.100 - codec_id.h
  Add AV_CODEC_ID_SMPTE_436M_ANC.
 2025-08-08 - 83b36f54108 - lavc 62.9.100 - codec_id.h
  Add AV_CODEC_ID_PRORES_RAW.
 2025-07-31 - 119d127d05c - lavu 60.7.100 - spherical.h
  Add AV_SPHERICAL_PARAMETRIC_IMMERSIVE.
 2025-07-20 - 157d3b007e9 - lavu 60.6.100 - attributes.h, avstring.h
  Add av_scanf_format() and use it on av_sscanf().
 2025-07-18 - fbda5ffb953 - lavu 60.5.100 - pixfmt.h
  Add AV_PIX_FMT_OHCODEC.
 2025-07-18 - fbda5ffb953 - lavu 60.5.100 - hwcontext.h
  Add AV_HWDEVICE_TYPE_OHCODEC and AVOHCodecDeviceContext.
 2025-07-14 - b24155cae11 - lavfi 11.2.100 - avfilter.h
  Add AVFilterGraph->max_buffered_frames.
 2025-07-07 - eca477da52 - lavc 62.6.100 - packet.h
  Add AV_PKT_DATA_RTCP_SR.
 2025-07-01 - 39d5a998bd - lavc 62.4.101 - packet.h
  Add AV_PKT_DATA_3D_REFERENCE_DISPLAYS.
 2025-07-01 - b2e4b0e282 - lavu 60.4.101 - frame.h
  Add AV_FRAME_DATA_3D_REFERENCE_DISPLAYS.
 2025-07-01 - 80a05bea4f - lavu 60.4.100 - tdrdi.h
  Add AV3DReferenceDisplaysInfo and AV3DReferenceDisplay structs.
  Add av_tdrdi_alloc() and av_tdrdi_get_display().
 2025-05-21 - 004cc60f0e3 - lavu 60.3.100 - avassert.h
  Add av_unreachable() and av_assume() macros.
 2025-02-15 - e2f39671ae2 - lavfi 10.10.100 - avfilter.h
  Add avfilter_link_get_hw_frames_ctx().
 2025-04-21 - bf1579c904a - lavu 60.2.100 - log.h
  Add AV_CLASS_CATEGORY_HWDEVICE.
 2025-04-16 - c818c67991 - libpostproc 59.1.100 - postprocess.h
  Deprecate PP_CPU_CAPS_3DNOW.
 2025-04-07 - 19e9a203b7 - lavu 60.01.100 - dict.h
  Add AV_DICT_DEDUP.
 2025-03-17 - 49af9746e8f - lavu 59.60.100 - pixfmt.h
  Add AV_PIX_FMT_GBRAP32BE and AV_PIX_FMT_GBRAP32LE.
 2025-03-10 - 61fc9b6fee1 - lavu 59.59.100 - pixfmt.h
  Add AV_PIX_FMT_YAF16BE, AV_PIX_FMT_YAF16LE, AV_PIX_FMT_YAF32BE,
  and AV_PIX_FMT_YAF32LE.
 2025-03-01 - 0245e9382c7 - lavu 59.58.100 - pixfmt.h
  Add AV_PIX_FMT_GRAY32BE and AV_PIX_FMT_GRAY32LE.
 2025-02-04 - 0ef678f5c50 - lavu 59.56.000 - pixfmt.h
  Add AV_PIX_FMT_AMF_SURFACE.
 2025-01-09 - a73760da537 - lavu 59.55.100 - pixfmt.h
  Add AV_PIX_FMT_GBRPF16BE, AV_PIX_FMT_GBRPF16LE, AV_PIX_FMT_GBRAPF16BE,
  AV_PIX_FMT_GBRAPF16LE, AV_PIX_FMT_GRAYF16BE, and AV_PIX_FMT_GRAYF16LE.
 2025-02-16 - c79cdae3777 - lavu 59.57.100 - log.h
  Add flags AV_LOG_PRINT_TIME and AV_LOG_PRINT_DATETIME.
 2025-02-09 - 9fb806fa577 - lavc 61.32.100 - codec_id.h
  Add AV_CODEC_ID_IVTV_VBI.
 2025-01-25 - ea3c3b42dff - lavu 59.56.100 - frame.h
  Add AV_SIDE_DATA_PROP_CHANNEL_DEPENDENT.
 2025-01-25 - 6707d970c04 - lavfi 10.9.100 - buffersink.h
  Add av_buffersink_get_side_data().
 2025-01-25 - 7a025e1cb5f - lavfi 10.8.100 - buffersrc.h
  Add AVBufferSrcParameters.side_data and AVBufferSrcParameters.nb_side_data
 2025-01-25 - ef1cb1c9c81 - lavfi 10.7.100 - avfilter.h
  Add AVFilterLink.side_data and AVFilterLink.nb_side_data
 2025-01-05 - 42e72d5c8b5 - lavu 59.55.100 - frame.h
  Add AV_FRAME_SIDE_DATA_FLAG_NEW_REF.
 2025-01-05 - 19c95ecbff8 - lavc 61.31.100 - avcodec.h
  Deprecate AVCodecContext->properties.
 2025-01-05 - 2d91f89445d - lavc 61.30.100 - frame.h
  Add AV_FRAME_FLAG_LOSSLESS.
 2025-01-03 - f3c40826455 - lavc 61.29.100 - codec_id.h
  Add AV_CODEC_ID_JPEGXL_ANIM.
 2025-01-03 - da9dcaba69d - lavu 59.54.100 - frame.h
  Add AV_CH_LAYOUT_5POINT1POINT2 and AV_CHANNEL_LAYOUT_5POINT1POINT2.
 2024-12-23 - b88944a8aa5 - lavu 59.53.100 - frame.h
  Add av_frame_side_data_remove_by_props().
 2024-12-23 - 3428a8d8303 - lavu 59.52.100 - frame.h
  Add AV_SIDE_DATA_PROP_SIZE_DEPENDENT and AV_FRAME_DATA_PROP_COLOR_DEPENDENT.
 2024-12-23 - 45f0a7ad338 - lsws 8.13.100 - swscale.h
  Add enum SwsIntent and SwsContext.intent.
 2024-12-15 - 2ac34d08542 - lavc 61.27.100 packet.h
  Add av_container_fifo_alloc_avpacket().
 2024-12-15 - 56ba57b6725 - lavu 59.51.100 - refstruct.h container_fifo.h
  Add a new public header refstruct.h with new API for
  reference-counted objects.
  Add a new public header container_fifo.h with new API for
  a FIFO of container objects (e.g. AVFrame or AVPacket).
 2024-12-13 - 6eb4bf04e92 - lavu 59.50.100 - channel_layout.h
  Add AV_CH_LAYOUT_9POINT1POINT6 and AV_CHANNEL_LAYOUT_9POINT1POINT6.
 2024-12-05 - 06f084468e0 - lavu 59.49.100 - csp.h
  Add av_csp_itu_eotf() and av_csp_itu_eotf_inv().
 2024-12-05 - bf0a6c41111 - lavu 59.48.100 - csp.h
  Add av_csp_trc_func_inv_from_id().
 2024-11-25 - 2a091d4f2ee - lsws 8.12.100 - swscale.h
  Allow using sws_frame_scale() dynamically, without first initializing the
  SwsContext. Deprecate sws_init_context(). Add sws_frame_setup() instead.
 2024-11-25 - fb169640092 - lsws 8.11.100 - swscale.h
  Replace #define-based SWS_* flags by enum SwsFlags.
 2024-11-25 - ed5dd675624 - lsws 8.10.100 - swscale.h
  Publicly expose struct SwsContext, enum SwsDither, and enum SwsAlphaBlend.
 2024-11-16 - 46cb7b8d9dc - lavu 59.47.101 - frame.h
  av_frame_get_buffer() now also aligns the data pointers according to
  the requested alignment.
 2024-11-13 - 20af68b63a4 - lavu 59.47.100 - channel_layout.h
  Add AV_CHAN_BINAURAL_LEFT, AV_CHAN_BINAURAL_RIGHT
  Add AV_CH_BINAURAL_LEFT, AV_CH_BINAURAL_RIGHT
  Add AV_CH_LAYOUT_BINAURAL, AV_CHANNEL_LAYOUT_BINAURAL
 2024-10-26 - e02a3b40a5e - lavu 59.46.100 - pixfmt.h
  Add AV_PIX_FMT_XV48.
 2024-10-23 - b03c758600f - lsws 8.9.100 - swscale.h
  Add sws_is_noop().
 2024-10-23 - 5e50a56b9c4 - lsws 8.8.100 - swscale.h
  Add frame property testing API:
    - sws_test_format()
    - sws_test_colorspace()
    - sws_test_primaries()
    - sws_test_transfer()
    - sws_test_frame()
 2024-10-23 - 87baf9ab2c2 - lsws 8.7.100 - swscale.h
  Add sws_free_context().
 2024-10-23 - f462ba05f54 - lavu 59.45.100 - pixfmt.h
  Add AV_PIX_FMT_Y216.
 2024-10-15 - 2336e685657 - lavu 59.44.100 - pixfmt.h
  Add AV_PIX_FMT_RGB96 and AV_PIX_FMT_RGBA128.
 2024-10-14 - c993a91bea - lavu 59.43.100 - pixfmt.h
  Add AV_PIX_FMT_RGBF16.
 2024-10-08 - 29ea34728f1 - lavu 59.42.100 - pixfmt.h
  Add AV_PIX_FMT_AYUV, AV_PIX_FMT_UYVA, AV_PIX_FMT_VYU444,
  and AV_PIX_FMT_V30X.
 2024-10-01 - 0548ab2e425 - lavu 59.41.100 - log.h
  Add AVClass.state_flags_offset and AV_CLASS_STATE_INITIALIZED.
 2024-09-30 - 50d1b89fa0d - lavf 61.9.100 - avformat.h
  Add {nb_}coded_side_data to AVStreamGroupTileGrid.
 2024-09-30 - df9b80d21a2 - lavu 59
  Deprecate av_int_list_length_for_size(), av_int_list_length(), and
  av_opt_set_int_list() without replacement. All AVOptions using these
  should be replaced with AV_OPT_TYPE_FLAG_ARRAY.
 2024-09-30 - 1efcdbc54d9 - lavfi 10.6.100
  Buffersink now has array-type options
    - pixel_formats
    - colorspaces
    - colorranges
  replacing the int-list options
    - pix_fmts
    - color_spaces
    - color_ranges
  abuffersink now has array-type options
    - sample_formats
    - samplerates
    - channel_layouts
  replacing the int-list/string options
    - sample_fmts
    - sample_rates
    - ch_layouts
 -------- 8< --------- FFmpeg 7.1 was cut here -------- 8< ---------
 2024-09-23 - 6940a6de2f0 - lavu 59.38.100 - frame.h
  Add AV_FRAME_DATA_VIEW_ID.
@ -627,7 +412,7 @@ API changes, most recent first:
  Deprecate AVFrame.palette_has_changed without replacement.
 2023-05-15 - 7d1d61cc5f5 - lavc 60 - avcodec.h
-  Deprecate AVCodecContext.ticks_per_frame in favor of
+  Depreate AVCodecContext.ticks_per_frame in favor of
  AVCodecContext.framerate (encoding) and
  AV_CODEC_PROP_FIELDS (decoding).
@ -635,7 +420,7 @@ API changes, most recent first:
  Add AV_CODEC_PROP_FIELDS.
 2023-05-15 - 8b20d0dcb5c - lavc 60 - codec.h
-  Deprecate AV_CODEC_CAP_SUBFRAMES without replacement.
+  Depreate AV_CODEC_CAP_SUBFRAMES without replacement.
 2023-05-07 - c2ae8e30b7f - lavc 60.11.100 - codec_par.h
  Add AVCodecParameters.framerate.
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@ -1093,7 +1093,7 @@ HTML_STYLESHEET        =
 # cascading style sheets that are included after the standard style sheets
 # created by doxygen. Using this option one can overrule certain style aspects.
 # This is preferred over using HTML_STYLESHEET since it does not replace the
-# standard style sheet and is therefore more robust against future updates.
+# standard style sheet and is therefor more robust against future updates.
 # Doxygen will copy the style sheet files to the output directory.
 # Note: The order of the extra stylesheet files is of importance (e.g. the last
 # stylesheet in the list overrules the setting of the previous ones in the
@ -1636,7 +1636,7 @@ EXTRA_PACKAGES         =
 # Note: Only use a user-defined header if you know what you are doing! The
 # following commands have a special meaning inside the header: $title,
 # $datetime, $date, $doxygenversion, $projectname, $projectnumber,
-# $projectbrief, $projectlogo. Doxygen will replace $title with the empty string,
+# $projectbrief, $projectlogo. Doxygen will replace $title with the empy string,
 # for the replacement values of the other commands the user is referred to
 # HTML_HEADER.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
--- a/doc/bitstream_filters.texi
+++ b/doc/bitstream_filters.texi
@ -189,52 +189,6 @@ see page 44-46 or section 5.5 of
 Extract the core from a E-AC-3 stream, dropping extra channels.
@section eia608_to_smpte436m
 Convert from a @code{EIA_608} stream to a @code{SMPTE_436M_ANC} data stream, wrapping the closed captions in CTA-708 CDP VANC packets.
@table @option
@item line_number
 Choose which line number the generated VANC packets should go on. You generally want either line 9 (the default) or 11.
@item wrapping_type
 Choose the SMPTE 436M wrapping type, defaults to @samp{vanc_frame}.
 It accepts the values:
@table @samp
@item vanc_frame
 VANC frame (interlaced or segmented progressive frame)
@item vanc_field_1
@item vanc_field_2
@item vanc_progressive_frame
@end table
@item sample_coding
 Choose the SMPTE 436M sample coding, defaults to @samp{8bit_luma}.
 It accepts the values:
@table @samp
@item 8bit_luma
 8-bit component luma samples
@item 8bit_color_diff
 8-bit component color difference samples
@item 8bit_luma_and_color_diff
 8-bit component luma and color difference samples
@item 10bit_luma
 10-bit component luma samples
@item 10bit_color_diff
 10-bit component color difference samples
@item 10bit_luma_and_color_diff
 10-bit component luma and color difference samples
@item 8bit_luma_parity_error
 8-bit component luma samples with parity error
@item 8bit_color_diff_parity_error
 8-bit component color difference samples with parity error
@item 8bit_luma_and_color_diff_parity_error
 8-bit component luma and color difference samples with parity error
@end table
@item initial_cdp_sequence_cntr
 The initial value of the CDP's 16-bit unsigned integer @code{cdp_hdr_sequence_cntr} and @code{cdp_ftr_sequence_cntr} fields. Defaults to 0.
@item cdp_frame_rate
 Set the CDP's @code{cdp_frame_rate} field. This doesn't actually change the timing of the data stream, it just changes the values inserted in that field in the generated CDP packets. Defaults to @samp{30000/1001}.
@end table
@section extract_extradata
 Extract the in-band extradata.
@ -469,21 +423,9 @@ Please note that this filter is auto-inserted for MPEG-TS (muxer
@section h264_redundant_pps
-This applies a specific fixup to some Blu-ray BDMV H264 streams
+This applies a specific fixup to some Blu-ray streams which contain
-which contain redundant PPSs. The PPSs modify irrelevant parameters
+redundant PPSs modifying irrelevant parameters of the stream which
-of the stream, confusing other transformations which require
+confuse other transformations which require correct extradata.
 the correct extradata.
 The encoder used on these impacted streams adds extra PPSs throughout
 the stream, varying the initial QP and whether weighted prediction
 was enabled. This causes issues after copying the stream into
 a global header container, as the starting PPS is not suitable
 for the rest of the stream. One side effect, for example,
 is seeking will return garbled output until a new PPS appears.
 This BSF removes the extra PPSs and rewrites the slice headers
 such that the stream uses a single leading PPS in the global header,
 which resolves the issue.
@section hevc_metadata
@ -754,12 +696,12 @@ ffmpeg -i INPUT -c copy -bsf noise=1 output.mkv
 Drop every video packet not marked as a keyframe after timestamp 30s but do not
 modify any of the remaining packets.
@example
-ffmpeg -i INPUT -c copy -bsf:v noise=drop='gt(pts*tb\,30)*not(key)' output.mkv
+ffmpeg -i INPUT -c copy -bsf:v noise=drop='gt(t\,30)*not(key)' output.mkv
@end example
 Drop one second of audio every 10 seconds and add some random noise to the rest.
@example
-ffmpeg -i INPUT -c copy -bsf:a noise=amount=-1:drop='between(mod(pts*tb\,10)\,9\,10)' output.mkv
+ffmpeg -i INPUT -c copy -bsf:a noise=amount=-1:drop='between(mod(t\,10)\,9\,10)' output.mkv
@end example
@section null
@ -994,11 +936,6 @@ ffmpeg -i INPUT -c:a copy -bsf:a setts=pts=DTS out.mkv
 Log basic packet information. Mainly useful for testing, debugging,
 and development.
@section smpte436m_to_eia608
 Convert from a @code{SMPTE_436M_ANC} data stream to a @code{EIA_608} stream,
 extracting the closed captions from CTA-708 CDP VANC packets, and ignoring all other data.
@anchor{text2movsub}
@section text2movsub
--- a/doc/build_system.txt
+++ b/doc/build_system.txt
@ -30,13 +30,6 @@ fate
 fate-list
    List all fate/regression test targets.
 fate-list-failing
    List the fate tests that failed the last time they were executed.
 fate-clear-reports
    Remove the test reports from previous test executions (getting rid of
    potentially stale results from fate-list-failing).
 install
    Install headers, libraries and programs.
@ -70,3 +63,4 @@ make -j<num>
 make -k
    Continue build in case of errors, this is useful for the regression tests
    sometimes but note that it will still not run all reg tests.
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@ -664,8 +664,6 @@ for codecs that support it. At present, those are H.264 and VP9.
@item film_grain
 Export film grain parameters through frame side data (see @code{AV_FRAME_DATA_FILM_GRAIN_PARAMS}).
 Supported at present by AV1 decoders.
@item enhancements
 Export picture enhancement metadata through frame side data, e.g. LCEVC (see @code{AV_FRAME_DATA_LCEVC}).
@end table
@item threads @var{integer} (@emph{decoding/encoding,video})
--- a/doc/decoders.texi
+++ b/doc/decoders.texi
@ -395,7 +395,7 @@ without this library.
@c man end AUDIO DECODERS
@chapter Subtitles Decoders
-@c man begin SUBTITLES DECODERS
+@c man begin SUBTILES DECODERS
@section libaribb24
@ -427,7 +427,7 @@ Enabled by default.
 Yet another ARIB STD-B24 caption decoder using external @dfn{libaribcaption}
 library.
-Implements profiles A and C of the Japanese ARIB STD-B24 standard,
+Implements profiles A and C of the Japanse ARIB STD-B24 standard,
 Brazilian ABNT NBR 15606-1, and Philippines version of ISDB-T.
 Requires the presence of the libaribcaption headers and library
@ -477,7 +477,7 @@ Specify comma-separated list of font family names to be used for @dfn{bitmap}
 or @dfn{ass} type subtitle rendering.
 Only first font name is used for @dfn{ass} type subtitle.
-If not specified, use internally defined default font family.
+If not specified, use internaly defined default font family.
@item -ass_single_rect @var{boolean}
 ARIB STD-B24 specifies that some captions may be displayed at different
@ -495,7 +495,7 @@ default behavior at compilation.
@item -force_outline_text @var{boolean}
 Specify whether always render outline text for all characters regardless of
-the indication by character style.
+the indication by charactor style.
 The default is @var{false}.
@ -696,4 +696,4 @@ box and an end box, typically subtitles. Default value is 0 if
@end table
-@c man end SUBTITLES DECODERS
+@c man end SUBTILES DECODERS
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@ -292,6 +292,7 @@ DVD-Video demuxer, powered by libdvdnav and libdvdread.
 Can directly ingest DVD titles, specifically sequential PGCs, into
 a conversion pipeline. Menu assets, such as background video or audio,
 can also be demuxed given the menu's coordinates (at best effort).
 Seeking is not supported at this time.
 Block devices (DVD drives), ISO files, and directory structures are accepted.
 Activate with @code{-f dvdvideo} in front of one of these inputs.
@ -379,11 +380,11 @@ Default is false.
@item menu_lu @var{int}
 The menu language to demux. In DVD, menus are grouped by language.
-Default is 1, the first language unit.
+Default is 0, the first language unit.
@item menu_vts @var{int}
 The VTS where the menu lives, or 0 if it is a VMG menu (root-level).
-Default is 1, menu of the first VTS.
+Default is 0, VMG menu.
@item pgc @var{int}
 The entry PGC to start playback, in conjunction with @option{pg}.
@ -396,7 +397,8 @@ Default is 0, automatically resolve from value of @option{title}.
 The entry PG to start playback, in conjunction with @option{pgc}.
 Alternative to setting @option{title}.
 Chapter markers are not supported at this time.
-Default is 1, the first PG of the PGC.
+Default is 0, automatically resolve from value of @option{title}, or
 start from the beginning (PG 1) of the menu.
@item preindex @var{bool}
 Enable this to have accurate chapter (PTT) markers and duration measurement,
@ -404,6 +406,7 @@ which requires a slow second pass read in order to index the chapter marker
 timestamps from NAV packets. This is non-ideal extra work for real optical drives.
 It is recommended and faster to use this option with a backup of the DVD structure
 stored on a hard drive. Not compatible with @option{pgc} and @option{pg}.
 Not applicable to menus.
 Default is 0, false.
@item trim @var{bool}
@ -564,13 +567,6 @@ prefer to use #EXT-X-START if it's in playlist instead of live_start_index.
@item allowed_extensions
 ',' separated list of file extensions that hls is allowed to access.
@item extension_picky
 This blocks disallowed extensions from probing
 It also requires all available segments to have matching extensions to the format
 except mpegts, which is always allowed.
 It is recommended to set the whitelists correctly instead of depending on extensions
 Enabled by default.
@item max_reload
 Maximum number of times a insufficient list is attempted to be reloaded.
 Default value is 1000.
@ -855,32 +851,6 @@ Set the sample rate for libopenmpt to output.
 Range is from 1000 to INT_MAX. The value default is 48000.
@end table
@anchor{mccdec}
@section mcc
 Demuxer for MacCaption MCC files, it supports MCC versions 1.0 and 2.0.
 MCC files store VANC data, which can include closed captions (EIA-608 and CEA-708), ancillary time code, pan-scan data, etc.
 By default, for backward compatibility, the MCC demuxer extracts just the EIA-608 and CEA-708 closed captions and returns a @code{EIA_608} stream, ignoring all other VANC data.
 You can change it to return all VANC data in a @code{SMPTE_436M_ANC} data stream by setting @option{-eia608_extract 0}
@subsection Examples
@itemize
@item
 Convert a MCC file to Scenarist (SCC) format:
@example
 ffmpeg -i CC.mcc -c:s copy CC.scc
@end example
 Note that the SCC format only supports EIA-608, so this will discard all other data such as CEA-708 extensions.
@item
 Merge a MCC file into a MXF file:
@example
 ffmpeg -i video_and_audio.mxf -eia608_extract 0 -i CC.mcc -c copy -map 0 -map 1 out.mxf
@end example
 This retains all VANC data and inserts it into the output MXF file as a @code{SMPTE_436M_ANC} data stream.
@end itemize
@section mov/mp4/3gp
 Demuxer for Quicktime File Format & ISO/IEC Base Media File Format (ISO/IEC 14496-12 or MPEG-4 Part 12, ISO/IEC 15444-12 or JPEG 2000 Part 12).
@ -1016,7 +986,7 @@ to 1 (-1 means automatic setting, 1 means enabled, 0 means
 disabled). Default value is -1.
@item merge_pmt_versions
-Reuse existing streams when a PMT's version is updated and elementary
+Re-use existing streams when a PMT's version is updated and elementary
 streams move to different PIDs. Default value is 0.
@item max_packet_size
--- a/doc/developer.texi
+++ b/doc/developer.texi
@ -70,6 +70,9 @@ variable-length arrays;
@item
 complex numbers;
@item
 mixed statements and declarations.
@end itemize
@subsection SIMD/DSP
@ -112,7 +115,7 @@ Objective-C where required for interacting with macOS-specific interfaces.
@section Code formatting conventions
-There are the following guidelines regarding the code style in files:
+There are the following guidelines regarding the indentation in files:
@itemize @bullet
@item
@ -132,104 +135,6 @@ K&R coding style is used.
@end itemize
 The presentation is one inspired by 'indent -i4 -kr -nut'.
@subsection Examples
 Some notable examples to illustrate common code style in FFmpeg:
@itemize @bullet
@item
 Space around assignments and after
@code{if}/@code{do}/@code{while}/@code{for} keywords:
@example c, good
 // Good
 if (condition)
    av_foo();
@end example
@example c, good
 // Good
 for (size_t i = 0; i < len; i++)
    av_bar(i);
@end example
@example c, good
 // Good
 size_t size = 0;
@end example
 However no spaces between the parentheses and condition, unless it helps
 readability of complex conditions, so the following should not be done:
@example c, bad
 // Bad style
 if ( condition )
    av_foo();
@end example
@item
 No unnecessary parentheses, unless it helps readability:
@example c, good
 // Good
 int fields = ilace ? 2 : 1;
@end example
@item
 Don't wrap single-line blocks in braces. Use braces only if there is an accompanying else statement. This keeps future code changes easier to keep track of.
@example c, good
 // Good
 if (bits_pixel == 24) @{
    avctx->pix_fmt = AV_PIX_FMT_BGR24;
@} else if (bits_pixel == 8) @{
    avctx->pix_fmt = AV_PIX_FMT_GRAY8;
@} else
    return AVERROR_INVALIDDATA;
@end example
@item
 Avoid assignments in conditions where it makes sense:
@example c, good
 // Good
 video_enc->chroma_intra_matrix = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64)
 if (!video_enc->chroma_intra_matrix)
    return AVERROR(ENOMEM);
@end example
@example c, bad
 // Bad style
 if (!(video_enc->chroma_intra_matrix = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64)))
    return AVERROR(ENOMEM);
@end example
@example c, good
 // Ok
 while ((entry = av_dict_iterate(options, entry)))
    av_log(ctx, AV_LOG_INFO, "Item '%s': '%s'\n", entry->key, entry->value);
@end example
@item
 When declaring a pointer variable, the @code{*} goes with the variable not the type:
@example c, good
 // Good
 AVStream *stream;
@end example
@example c, bad
 // Bad style
 AVStream* stream;
@end example
@end itemize
 If you work on a file that does not follow these guidelines consistently,
 change the parts that you are editing to follow these guidelines but do
 not make unrelated changes in the file to make it conform to these.
@subsection Vim configuration
 In order to configure Vim to follow FFmpeg formatting conventions, paste
 the following snippet into your @file{.vimrc}:
@ -546,7 +451,7 @@ FFmpeg also has a defined scope - your new API must fit within it.
@subsubheading Replacing existing APIs
 If your new API is replacing an existing one, it should be strictly superior to
-it, so that the advantages of using the new API outweigh the cost to the
+it, so that the advantages of using the new API outweight the cost to the
 callers of changing their code. After adding the new API you should then
 deprecate the old one and schedule it for removal, as described in
@ref{Removing interfaces}.
@ -596,7 +501,7 @@ change in @file{doc/APIchanges}.
 Backward-incompatible API or ABI changes require incrementing (bumping) the
 major version number, as described in @ref{Major version bumps}. Major
 bumps are significant events that happen on a schedule - so if your change
-strictly requires one you should add it under @code{#if} preprocessor guards that
+strictly requires one you should add it under @code{#if} preprocesor guards that
 disable it until the next major bump happens.
 New APIs that can be added without breaking API or ABI compatibility require
@ -917,10 +822,10 @@ improves readability.
 Consider adding a regression test for your code. All new modules
 should be covered by tests. That includes demuxers, muxers, decoders, encoders
 filters, bitstream filters, parsers. If its not possible to do that, add
-an explanation why to your patchset, its ok to not test if there's a reason.
+an explanation why to your patchset, its ok to not test if theres a reason.
@item
-If you added NASM code please check that things still work with --disable-x86asm.
+If you added YASM code please check that things still work with --disable-yasm.
@item
 Test your code with valgrind and or Address Sanitizer to ensure it's free
@ -1022,25 +927,6 @@ In case you need finer control over how valgrind is invoked, use the
@code{--target-exec='valgrind <your_custom_valgrind_options>} option in
 your configure line instead.
@anchor{Maintenance}
@chapter Maintenance process
@anchor{MAINTAINERS}
@section MAINTAINERS
 The developers maintaining each part of the codebase are listed in @file{MAINTAINERS}.
 Being listed in @file{MAINTAINERS}, gives one the right to have git write access to
 the specific repository.
@anchor{Becoming a maintainer}
@section Becoming a maintainer
 People add themselves to @file{MAINTAINERS} by sending a patch like any other code
 change. These get reviewed by the community like any other patch. It is expected
 that, if someone has an objection to a new maintainer, she is willing to object
 in public with her full name and is willing to take over maintainership for the area.
@anchor{Release process}
@chapter Release process
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@ -106,8 +106,15 @@ debugging by setting the option to "disable".
 Enables the use of the long term prediction extension which increases coding
 efficiency in very low bandwidth situations such as encoding of voice or
 solo piano music by extending constant harmonic peaks in bands throughout
-frames. This option is implied by profile:a aac_low.
+frames. This option is implied by profile:a aac_low and is incompatible with
-Use in conjunction with @option{-ar} to decrease the samplerate.
+aac_pred. Use in conjunction with @option{-ar} to decrease the samplerate.
@item aac_pred
 Enables the use of a more traditional style of prediction where the spectral
 coefficients transmitted are replaced by the difference of the current
 coefficients minus the previous "predicted" coefficients. In theory and sometimes
 in practice this can improve quality for low to mid bitrate audio.
 This option implies the aac_main profile and is incompatible with aac_ltp.
@item profile
 Sets the encoding profile, possible values:
@ -125,6 +132,10 @@ MPEG4 specifications.
 Long term prediction profile, is enabled by and will enable the @option{aac_ltp}
 option. Introduced in MPEG4.
@item aac_main
 Main-type prediction profile, is enabled by and will enable the @option{aac_pred}
 option. Introduced in MPEG2.
@end table
 If this option is unspecified it is set to @samp{aac_low}.
@end table
@ -1038,7 +1049,7 @@ forces a wideband cutoff for bitrates < 15 kbps, unless CELT-only
 Set channel mapping family to be used by the encoder. The default value of -1
 uses mapping family 0 for mono and stereo inputs, and mapping family 1
 otherwise. The default also disables the surround masking and LFE bandwidth
-optimizations in libopus, and requires that the input contains 8 channels or
+optimzations in libopus, and requires that the input contains 8 channels or
 fewer.
 Other values include 0 for mono and stereo, 1 for surround sound with masking
@ -1380,48 +1391,6 @@ Higher is better but slower.
@end table
@anchor{ffv1}
@section ffv1
 FFv1 Encoder
@subsection Options
 The following options are supported by FFmpeg's FFv1 encoder.
@table @option
@item context
 Sets the context size, 0 (default) is small, 1 is big.
@item coder
 Set the coder,
@table @samp
@item rice
 Golomb rice coder
@item range_def
 Range coder with default table
@item range_tab
 Range coder with custom table
@end table
@item slicecrc
 -1 (default, automatic), 1 use crc with zero initial and final state, 2 use crc with non zero initial and final state
@item qtable
@table @samp
@item default
 default, automatic
@item 8bit
 use 8bit default
@item greater8bit
 use >8bit default
@end table
@item remap_optimizer
 0 - 5, default 3, how much effort the encoder puts into optimizing the remap table.
@end table
@section GIF
 GIF image/animation encoder.
@ -1889,42 +1858,6 @@ ffmpeg -i input -c:v libaom-av1 -b:v 500K -aom-params tune=psnr:enable-tpl-model
@end table
@section liboapv
 Advanced Professional Video codec encoder wrapper.
 This encoder requires the presence of the liboapv headers and library
 during configuration. You need to explicitly configure the build with
@option{--enable-liboapv}.
@float NOTE
 Many liboapv encoder options are mapped to FFmpeg global codec options,
 while unique encoder options are provided through private options.
@end float
 The apv project website is at @url{https://github.com/AcademySoftwareFoundation/openapv}.
@subsection Options
 The following options are supported by the liboapv wrapper.
@float NOTE
 To get a more extensive documentation of the liboapv options, consult the
 liboapv documentation.
@end float
@table @option
@item preset
 Set the quality-speed tradeoff [fastest, fast, medium, slow, placebo, default]
@item qp
 Set the quantization parameter value for CQP rate control mode.
@item oapv-params (@emph{parse_apv_params})
 Set liboapvenc options using a list of @var{key}=@var{value} pairs separated
 by ":". See the liboapv encoder user guide for a list of accepted parameters.
@end table
@section libsvtav1
 SVT-AV1 encoder wrapper.
@ -3342,75 +3275,6 @@ fastest.
@end table
@section MediaCodec
 MediaCodec encoder wrapper enables hardware-accelerated video encoding on
 Android device. It supports H.264, H.265 (HEVC), VP8, VP9, MPEG-4, and AV1
 encoding (whether works or not is device dependent).
 Android provides two sets of APIs: Java MediaCodec and NDK MediaCodec. The
 MediaCodec encoder wrapper supports both. Note that the NDK MediaCodec API
 operates without requiring JVM, but may fail to function outside the JVM
 environment due to dependencies on system framework services, particularly
 after Android 15.
@table @option
@item ndk_codec @var{boolean}
 Use the NDK-based MediaCodec API instead of the Java API. Enabled by default
 if @code{av_jni_get_java_vm()} return NULL.
@item ndk_async @var{boolean}
 Use NDK MediaCodec in async mode. Async mode has less overhead than poll in a
 loop in sync mode. The drawback of async mode is AV_CODEC_FLAG_GLOBAL_HEADER
 doesn't work (use extract_extradata bsf when necessary). It doesn't work and
 will be disabled automatically on devices below Android 8.0.
@item codec_name @var{string}
 A codec type can have multiple implementations on a single device, this option
 specify which backend to use (via MediaCodec createCodecByName API). It's NULL
 by default, and encoder is created by createEncoderByType.
@item bitrate_mode @var{integer}
 Possible values:
@table @samp
@item cq
 Constant quality mode
@item vbr
 Variable bitrate mode
@item cbr
 Constant bitrate mode
@item cbr_fd
 Constant bitrate mode with frame drops
@end table
@item pts_as_dts @var{boolean}
 Use PTS as DTS. This is a workaround since MediaCodec API doesn't provide
 decoding timestamp. It is enabled automatically if B frame is 0.
@item operating_rate @var{integer}
 The desired operating rate that the codec will need to operate at, zero for
 unspecified. This is used for cases like high-speed/slow-motion video capture,
 where the video encoder format contains the target playback rate (e.g. 30fps),
 but the component must be able to handle the high operating capture rate (e.g.
 240fps). This rate will be used by codec for resource planning and setting the
 operating points.
@item qp_i_min @var{integer}
 Minimum quantization parameter for I frame.
@item qp_p_min @var{integer}
 Minimum quantization parameter for P frame.
@item qp_b_min @var{integer}
 Minimum quantization parameter for B frame.
@item qp_i_max @var{integer}
 Maximum quantization parameter for I frame.
@item qp_p_max @var{integer}
 Maximum quantization parameter for P frame.
@item qp_b_max @var{integer}
 Maximum quantization parameter for B frame.
@end table
@section MediaFoundation
 This provides wrappers to encoders (both audio and video) in the
@ -3493,13 +3357,6 @@ Default is 1 (on).
 PNG image encoder.
@subsection Options
@table @option
@item compression_level
 Sets the compression level, from 0 to 9(default)
@end table
@subsection Private options
@table @option
@ -3507,8 +3364,6 @@ Sets the compression level, from 0 to 9(default)
 Set physical density of pixels, in dots per inch, unset by default
@item dpm @var{integer}
 Set physical density of pixels, in dots per meter, unset by default
@item pred @var{method}
 Set prediction method (none, sub, up, avg, paeth, mixed), default is paeth
@end table
@section ProRes
@ -3703,7 +3558,7 @@ For encoders set this flag to ON to reduce power consumption and GPU usage.
@end table
@subsection Runtime Options
-Following options can be used during qsv encoding.
+Following options can be used durning qsv encoding.
@table @option
@item @var{global_quality}
@ -3813,7 +3668,7 @@ improves subjective visual quality. Enabling this flag may have negative impact
 on performance and objective visual quality metric.
@item @var{low_delay_brc}
-Setting this flag turns on or off LowDelayBRC feature in qsv plugin, which provides
+Setting this flag turns on or off LowDelayBRC feautre in qsv plugin, which provides
 more accurate bitrate control to minimize the variance of bitstream size frame
 by frame. Value: -1-default 0-off 1-on
@ -4012,7 +3867,7 @@ improves subjective visual quality. Enabling this flag may have negative impact
 on performance and objective visual quality metric.
@item @var{low_delay_brc}
-Setting this flag turns on or off LowDelayBRC feature in qsv plugin, which provides
+Setting this flag turns on or off LowDelayBRC feautre in qsv plugin, which provides
 more accurate bitrate control to minimize the variance of bitstream size frame
 by frame. Value: -1-default 0-off 1-on
@ -4246,7 +4101,7 @@ Extended bitrate control.
 Depth of look ahead in number frames, available when extbrc option is enabled.
@item @var{low_delay_brc}
-Setting this flag turns on or off LowDelayBRC feature in qsv plugin, which provides
+Setting this flag turns on or off LowDelayBRC feautre in qsv plugin, which provides
 more accurate bitrate control to minimize the variance of bitstream size frame
 by frame. Value: -1-default 0-off 1-on
@ -4602,25 +4457,6 @@ Reduces detail but attempts to preserve color at extremely low bitrates.
@chapter Subtitles Encoders
@c man begin SUBTITLES ENCODERS
@section dvbsub
 This codec encodes the bitmap subtitle format that is used in DVB
 broadcasts and recordings. The bitmaps are typically embedded in a
 container such as MPEG-TS as a separate stream.
@subsection Options
@table @option
@item min_bpp @var{integer (2, 4, or 8)}
 Set a minimum bits-per-pixel value for the subtitle color lookup tables.
 DVB supports 2, 4, and 8 bits-per-pixel color lookup tables.  This
 option enables forcing a particular bits-per-pixel value regardless of
 the number of colors.  Since not all players support or properly
 support 2 bits-per-pixel, this value defaults to 4.
@end table
@section dvdsub
 This codec encodes the bitmap subtitle format that is used in DVDs.
@ -4648,18 +4484,4 @@ one byte per subtitle on average.
 By default, this work-around is disabled.
@end table
@section lrc
 This codec encodes the LRC lyrics format.
@subsection Options
@table @option
@item precision
 Specify the precision of the fractional part of the timestamp. Time base is
 determined based on this value.
 Defaults to 2 for centiseconds.
@end table
@c man end SUBTITLES ENCODERS
--- a/doc/examples/avio_read_callback.c
+++ b/doc/examples/avio_read_callback.c
@ -96,7 +96,6 @@ int main(int argc, char *argv[])
    avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size,
                                  0, &bd, &read_packet, NULL, NULL);
    if (!avio_ctx) {
        av_freep(&avio_ctx_buffer);
        ret = AVERROR(ENOMEM);
        goto end;
    }
--- a/doc/examples/decode_audio.c
+++ b/doc/examples/decode_audio.c
@ -128,10 +128,6 @@ int main(int argc, char **argv)
    outfilename = argv[2];
    pkt = av_packet_alloc();
    if (!pkt) {
        fprintf(stderr, "Could not allocate AVPacket\n");
        exit(1); /* or proper cleanup and returning */
    }
    /* find the MPEG audio decoder */
    codec = avcodec_find_decoder(AV_CODEC_ID_MP2);
@ -165,7 +161,7 @@ int main(int argc, char **argv)
    }
    outfile = fopen(outfilename, "wb");
    if (!outfile) {
-        fprintf(stderr, "Could not open %s\n", outfilename);
+        av_free(c);
        exit(1);
    }
--- a/doc/examples/decode_filter_audio.c
+++ b/doc/examples/decode_filter_audio.c
@ -30,6 +30,8 @@
 * file to be played with ffplay.
 */
 #include <unistd.h>
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libavfilter/buffersink.h>
@ -94,7 +96,8 @@ static int init_filters(const char *filters_descr)
    const AVFilter *abuffersink = avfilter_get_by_name("abuffersink");
    AVFilterInOut *outputs = avfilter_inout_alloc();
    AVFilterInOut *inputs  = avfilter_inout_alloc();
-    static const int out_sample_rate = 8000;
+    static const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
    static const int out_sample_rates[] = { 8000, -1 };
    const AVFilterLink *outlink;
    AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;
@ -120,40 +123,34 @@ static int init_filters(const char *filters_descr)
    }
    /* buffer audio sink: to terminate the filter chain. */
-    buffersink_ctx = avfilter_graph_alloc_filter(filter_graph, abuffersink, "out");
+    ret = avfilter_graph_create_filter(&buffersink_ctx, abuffersink, "out",
-    if (!buffersink_ctx) {
+                                       NULL, NULL, filter_graph);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
        ret = AVERROR(ENOMEM);
        goto end;
    }
-    ret = av_opt_set(buffersink_ctx, "sample_formats", "s16",
+    ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
-                     AV_OPT_SEARCH_CHILDREN);
+                              AV_OPT_SEARCH_CHILDREN);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
        goto end;
    }
-    ret = av_opt_set(buffersink_ctx, "channel_layouts", "mono",
+    ret = av_opt_set(buffersink_ctx, "ch_layouts", "mono",
-                     AV_OPT_SEARCH_CHILDREN);
+                              AV_OPT_SEARCH_CHILDREN);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
        goto end;
    }
-    ret = av_opt_set_array(buffersink_ctx, "samplerates", AV_OPT_SEARCH_CHILDREN,
+    ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
-                           0, 1, AV_OPT_TYPE_INT, &out_sample_rate);
+                              AV_OPT_SEARCH_CHILDREN);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
        goto end;
    }
    ret = avfilter_init_dict(buffersink_ctx, NULL);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot initialize audio buffer sink\n");
        goto end;
    }
    /*
     * Set the endpoints for the filter graph. The filter_graph will
     * be linked to the graph described by filters_descr.
--- a/doc/examples/decode_filter_video.c
+++ b/doc/examples/decode_filter_video.c
@ -27,6 +27,8 @@
 * @example decode_filter_video.c
 */
 #define _XOPEN_SOURCE 600 /* for usleep */
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
@ -36,7 +38,6 @@
 #include <libavfilter/buffersrc.h>
 #include <libavutil/mem.h>
 #include <libavutil/opt.h>
 #include <libavutil/time.h>
 const char *filter_descr = "scale=78:24,transpose=cclock";
 /* other way:
@ -98,6 +99,7 @@ static int init_filters(const char *filters_descr)
    AVFilterInOut *outputs = avfilter_inout_alloc();
    AVFilterInOut *inputs  = avfilter_inout_alloc();
    AVRational time_base = fmt_ctx->streams[video_stream_index]->time_base;
    enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
    filter_graph = avfilter_graph_alloc();
    if (!outputs || !inputs || !filter_graph) {
@ -120,26 +122,20 @@ static int init_filters(const char *filters_descr)
    }
    /* buffer video sink: to terminate the filter chain. */
-    buffersink_ctx = avfilter_graph_alloc_filter(filter_graph, buffersink, "out");
+    ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
-    if (!buffersink_ctx) {
+                                       NULL, NULL, filter_graph);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
        ret = AVERROR(ENOMEM);
        goto end;
    }
-    ret = av_opt_set(buffersink_ctx, "pixel_formats", "gray8",
+    ret = av_opt_set_int_list(buffersink_ctx, "pix_fmts", pix_fmts,
-                     AV_OPT_SEARCH_CHILDREN);
+                              AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
        goto end;
    }
    ret = avfilter_init_dict(buffersink_ctx, NULL);
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Cannot initialize buffer sink\n");
        goto end;
    }
    /*
     * Set the endpoints for the filter graph. The filter_graph will
     * be linked to the graph described by filters_descr.
@ -194,7 +190,7 @@ static void display_frame(const AVFrame *frame, AVRational time_base)
            delay = av_rescale_q(frame->pts - last_pts,
                                 time_base, AV_TIME_BASE_Q);
            if (delay > 0 && delay < 1000000)
-                av_usleep(delay);
+                usleep(delay);
        }
        last_pts = frame->pts;
    }
--- a/doc/examples/filter_audio.c
+++ b/doc/examples/filter_audio.c
@ -270,6 +270,7 @@ int main(int argc, char *argv[])
    AVFilterGraph *graph;
    AVFilterContext *src, *sink;
    AVFrame *frame;
    uint8_t errstr[1024];
    float duration;
    int err, nb_frames, i;
@ -294,7 +295,6 @@ int main(int argc, char *argv[])
    md5 = av_md5_alloc();
    if (!md5) {
        av_frame_free(&frame);
        fprintf(stderr, "Error allocating the MD5 context\n");
        return 1;
    }
@ -302,10 +302,8 @@ int main(int argc, char *argv[])
    /* Set up the filtergraph. */
    err = init_filter_graph(&graph, &src, &sink);
    if (err < 0) {
        av_frame_free(&frame);
        av_freep(&md5);
        fprintf(stderr, "Unable to init filter graph:");
-        return 1;
+        goto fail;
    }
    /* the main filtering loop */
@ -356,10 +354,7 @@ int main(int argc, char *argv[])
    return 0;
 fail:
-    avfilter_graph_free(&graph);
+    av_strerror(err, errstr, sizeof(errstr));
-    av_frame_free(&frame);
+    fprintf(stderr, "%s\n", errstr);
    av_freep(&md5);
    fprintf(stderr, "%s\n", av_err2str(err));
    return 1;
 }
--- a/doc/examples/mux.c
+++ b/doc/examples/mux.c
@ -418,7 +418,7 @@ static void open_video(AVFormatContext *oc, const AVCodec *codec,
        exit(1);
    }
-    /* allocate and init a reusable frame */
+    /* allocate and init a re-usable frame */
    ost->frame = alloc_frame(c->pix_fmt, c->width, c->height);
    if (!ost->frame) {
        fprintf(stderr, "Could not allocate video frame\n");
--- a/doc/examples/qsv_decode.c
+++ b/doc/examples/qsv_decode.c
@ -219,8 +219,11 @@ int main(int argc, char **argv)
    ret = decode_packet(decoder_ctx, frame, sw_frame, NULL, output_ctx);
 finish:
-    if (ret < 0)
+    if (ret < 0) {
-        fprintf(stderr, "%s\n", av_err2str(ret));
+        char buf[1024];
        av_strerror(ret, buf, sizeof(buf));
        fprintf(stderr, "%s\n", buf);
    }
    avformat_close_input(&input_ctx);
--- a/doc/examples/qsv_transcode.c
+++ b/doc/examples/qsv_transcode.c
@ -101,7 +101,7 @@ static int dynamic_set_parameter(AVCodecContext *avctx)
        /* Set codec specific option */
        if ((ret = av_opt_set_dict(avctx->priv_data, &opts)) < 0)
            goto fail;
-        /* There is no "framerate" option in common option list. Use "-r" to set
+        /* There is no "framerate" option in commom option list. Use "-r" to set
         * framerate, which is compatible with ffmpeg commandline. The video is
         * assumed to be average frame rate, so set time_base to 1/framerate. */
        e = av_dict_get(opts, "r", NULL, 0);
@ -180,7 +180,7 @@ static int open_input_file(char *filename)
        decoder = avcodec_find_decoder_by_name("mjpeg_qsv");
        break;
    default:
-        fprintf(stderr, "Codec is not supported by qsv\n");
+        fprintf(stderr, "Codec is not supportted by qsv\n");
        return AVERROR(EINVAL);
    }
@ -289,7 +289,7 @@ static int dec_enc(AVPacket *pkt, const AVCodec *enc_codec, char *optstr)
                fprintf(stderr, "Failed to set encoding parameter.\n");
                goto fail;
            }
-            /* There is no "framerate" option in common option list. Use "-r" to
+            /* There is no "framerate" option in commom option list. Use "-r" to
            * set framerate, which is compatible with ffmpeg commandline. The
            * video is assumed to be average frame rate, so set time_base to
            * 1/framerate. */
--- a/doc/examples/transcode.c
+++ b/doc/examples/transcode.c
@ -171,38 +171,23 @@ static int open_output_file(const char *filename)
             * sample rate etc.). These properties can be changed for output
             * streams easily using filters */
            if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
                const enum AVPixelFormat *pix_fmts = NULL;
                enc_ctx->height = dec_ctx->height;
                enc_ctx->width = dec_ctx->width;
                enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
                ret = avcodec_get_supported_config(dec_ctx, NULL,
                                                   AV_CODEC_CONFIG_PIX_FORMAT, 0,
                                                   (const void**)&pix_fmts, NULL);
                /* take first format from list of supported formats */
-                enc_ctx->pix_fmt = (ret >= 0 && pix_fmts) ?
+                if (encoder->pix_fmts)
-                                   pix_fmts[0] : dec_ctx->pix_fmt;
+                    enc_ctx->pix_fmt = encoder->pix_fmts[0];
-
+                else
                    enc_ctx->pix_fmt = dec_ctx->pix_fmt;
                /* video time_base can be set to whatever is handy and supported by encoder */
                enc_ctx->time_base = av_inv_q(dec_ctx->framerate);
            } else {
                const enum AVSampleFormat *sample_fmts = NULL;
                enc_ctx->sample_rate = dec_ctx->sample_rate;
                ret = av_channel_layout_copy(&enc_ctx->ch_layout, &dec_ctx->ch_layout);
                if (ret < 0)
                    return ret;
                ret = avcodec_get_supported_config(dec_ctx, NULL,
                                                   AV_CODEC_CONFIG_SAMPLE_FORMAT, 0,
                                                   (const void**)&sample_fmts, NULL);
                /* take first format from list of supported formats */
-                enc_ctx->sample_fmt = (ret >= 0 && sample_fmts) ?
+                enc_ctx->sample_fmt = encoder->sample_fmts[0];
                                      sample_fmts[0] : dec_ctx->sample_fmt;
                enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
            }
@ -298,10 +283,10 @@ static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
            goto end;
        }
-        buffersink_ctx = avfilter_graph_alloc_filter(filter_graph, buffersink, "out");
+        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
-        if (!buffersink_ctx) {
+                NULL, NULL, filter_graph);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
            ret = AVERROR(ENOMEM);
            goto end;
        }
@ -312,12 +297,6 @@ static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
            av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
            goto end;
        }
        ret = avfilter_init_dict(buffersink_ctx, NULL);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Cannot initialize buffer sink\n");
            goto end;
        }
    } else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
        char buf[64];
        buffersrc = avfilter_get_by_name("abuffer");
@ -343,10 +322,10 @@ static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
            goto end;
        }
-        buffersink_ctx = avfilter_graph_alloc_filter(filter_graph, buffersink, "out");
+        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
-        if (!buffersink_ctx) {
+                NULL, NULL, filter_graph);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
            ret = AVERROR(ENOMEM);
            goto end;
        }
@ -373,15 +352,6 @@ static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
            av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
            goto end;
        }
        if (enc_ctx->frame_size > 0)
            av_buffersink_set_frame_size(buffersink_ctx, enc_ctx->frame_size);
        ret = avfilter_init_dict(buffersink_ctx, NULL);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Cannot initialize audio buffer sink\n");
            goto end;
        }
    } else {
        ret = AVERROR_UNKNOWN;
        goto end;
--- a/doc/fate.texi
+++ b/doc/fate.texi
@ -208,13 +208,6 @@ Download/synchronize sample files to the configured samples directory.
@item fate-list
 Will list all fate/regression test targets.
@item fate-list-failing
 List the fate tests that failed the last time they were executed.
@item fate-clear-reports
 Remove the test reports from previous test executions (getting rid of
 potentially stale results from fate-list-failing).
@item fate
 Run the FATE test suite (requires the fate-suite dataset).
@end table
--- a/doc/fate_config.sh.template
+++ b/doc/fate_config.sh.template
@ -1,5 +1,5 @@
 slot=                                    # some unique identifier
-repo=https://git.ffmpeg.org/ffmpeg.git   # the source repository
+repo=git://source.ffmpeg.org/ffmpeg.git  # the source repository
 #branch=release/2.6                       # the branch to test
 samples=                                 # path to samples directory
 workdir=                                 # directory in which to do all the work
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@ -21,24 +21,22 @@ ffmpeg [@var{global_options}] @{[@var{input_file_options}] -i @file{input_url}@}
 inputs - including live grabbing/recording devices - filter, and transcode them
 into a plethora of output formats.
-@command{ffmpeg} reads from an arbitrary number of inputs (which can be regular
+@command{ffmpeg} reads from an arbitrary number of input "files" (which can be regular
 files, pipes, network streams, grabbing devices, etc.), specified by the
-@code{-i} option, and writes to an arbitrary number of outputs, which are
+@code{-i} option, and writes to an arbitrary number of output "files", which are
-specified by a plain output url. Anything found on the command line which cannot
+specified by a plain output url. Anything found on the command line which
-be interpreted as an option is considered to be an output url.
+cannot be interpreted as an option is considered to be an output url.
-Each input or output can, in principle, contain any number of elementary streams
+Each input or output url can, in principle, contain any number of streams of
-of different types (video/audio/subtitle/attachment/data), though the allowed
+different types (video/audio/subtitle/attachment/data). The allowed number and/or
-stream counts and/or types may be limited by the container format. Selecting
+types of streams may be limited by the container format. Selecting which
-which streams from which inputs will go into which output is either done
+streams from which inputs will go into which output is either done automatically
-automatically or with the @code{-map} option (see the @ref{Stream selection}
+or with the @code{-map} option (see the Stream selection chapter).
 chapter).
-To refer to inputs/outputs in options, you must use their indices (0-based).
+To refer to input files in options, you must use their indices (0-based). E.g.
-E.g. the first input is @code{0}, the second is @code{1}, etc. Similarly,
+the first input file is @code{0}, the second is @code{1}, etc. Similarly, streams
-streams within an input/output are referred to by their indices. E.g. @code{2:3}
+within a file are referred to by their indices. E.g. @code{2:3} refers to the
-refers to the fourth stream in the third input or output. Also see the
+fourth stream in the third input file. Also see the Stream specifiers chapter.
@ref{Stream specifiers} chapter.
 As a general rule, options are applied to the next specified
 file. Therefore, order is important, and you can have the same
@ -87,405 +85,140 @@ The format option may be needed for raw input files.
@chapter Detailed description
@c man begin DETAILED DESCRIPTION
-@command{ffmpeg} builds a transcoding pipeline out of the components listed
+The transcoding process in @command{ffmpeg} for each output can be described by
-below. The program's operation then consists of input data chunks flowing from
+the following diagram:
 the sources down the pipes towards the sinks, while being transformed by the
 components they encounter along the way.
 The following kinds of components are available:
@itemize
@item
@emph{Demuxers} (short for "demultiplexers") read an input source in order to
 extract
@itemize
@item
 global properties such as metadata or chapters;
@item
 list of input elementary streams and their properties
@end itemize
 One demuxer instance is created for each @option{-i} option, and sends encoded
@emph{packets} to @emph{decoders} or @emph{muxers}.
 In other literature, demuxers are sometimes called @emph{splitters}, because
 their main function is splitting a file into elementary streams (though some
 files only contain one elementary stream).
 A schematic representation of a demuxer looks like this:
@verbatim
-┌──────────┬───────────────────────┐
+ _______              ______________
-│ demuxer  │                       │ packets for stream 0
+|       |            |              |
-╞══════════╡ elementary stream 0   ├──────────────────────►
+| input |  demuxer   | encoded data |   decoder
-│          │                       │
+| file  | ---------> | packets      | -----+
-│  global  ├───────────────────────┤
+|_______|            |______________|      |
-│properties│                       │ packets for stream 1
+                                           v
-│   and    │ elementary stream 1   ├──────────────────────►
+                                       _________
-│ metadata │                       │
+                                      |         |
-│          ├───────────────────────┤
+                                      | decoded |
-│          │                       │
+                                      | frames  |
-│          │     ...........       │
+                                      |_________|
-│          │                       │
+ ________             ______________       |
-│          ├───────────────────────┤
+|        |           |              |      |
-│          │                       │ packets for stream N
+| output | <-------- | encoded data | <----+
-│          │ elementary stream N   ├──────────────────────►
+| file   |   muxer   | packets      |   encoder
-│          │                       │
+|________|           |______________|
-└──────────┴───────────────────────┘
+
-     ▲
+
     │
     │ read from file, network stream,
     │     grabbing device, etc.
     │
@end verbatim
-@item
+@command{ffmpeg} calls the libavformat library (containing demuxers) to read
-@emph{Decoders} receive encoded (compressed) @emph{packets} for an audio, video,
+input files and get packets containing encoded data from them. When there are
-or subtitle elementary stream, and decode them into raw @emph{frames} (arrays of
+multiple input files, @command{ffmpeg} tries to keep them synchronized by
-pixels for video, PCM for audio). A decoder is typically associated with (and
+tracking lowest timestamp on any active input stream.
 receives its input from) an elementary stream in a @emph{demuxer}, but sometimes
 may also exist on its own (see @ref{Loopback decoders}).
 A schematic representation of a decoder looks like this:
@verbatim
          ┌─────────┐
 packets  │         │ raw frames
 ─────────►│ decoder ├────────────►
          │         │
          └─────────┘
@end verbatim
@item
@emph{Filtergraphs} process and transform raw audio or video @emph{frames}. A
 filtergraph consists of one or more individual @emph{filters} linked into a
 graph. Filtergraphs come in two flavors - @emph{simple} and @emph{complex},
 configured with the @option{-filter} and @option{-filter_complex} options,
 respectively.
 A simple filtergraph is associated with an @emph{output elementary stream}; it
 receives the input to be filtered from a @emph{decoder} and sends filtered
 output to that output stream's @emph{encoder}.
 A simple video filtergraph that performs deinterlacing (using the @code{yadif}
 deinterlacer) followed by resizing (using the @code{scale} filter) can look like
 this:
@verbatim
             ┌────────────────────────┐
             │  simple filtergraph    │
 frames from ╞════════════════════════╡ frames for
 a decoder   │  ┌───────┐  ┌───────┐  │ an encoder
 ────────────►├─►│ yadif ├─►│ scale ├─►│────────────►
             │  └───────┘  └───────┘  │
             └────────────────────────┘
@end verbatim
 A complex filtergraph is standalone and not associated with any specific stream.
 It may have multiple (or zero) inputs, potentially of different types (audio or
 video), each of which receiving data either from a decoder or another complex
 filtergraph's output. It also has one or more outputs that feed either an
 encoder or another complex filtergraph's input.
 The following example diagram represents a complex filtergraph with 3 inputs and
 2 outputs (all video):
@verbatim
          ┌─────────────────────────────────────────────────┐
          │               complex filtergraph               │
          ╞═════════════════════════════════════════════════╡
 frames   ├───────┐  ┌─────────┐      ┌─────────┐  ┌────────┤ frames
 ─────────►│input 0├─►│ overlay ├─────►│ overlay ├─►│output 0├────────►
          ├───────┘  │         │      │         │  └────────┤
 frames   ├───────┐╭►│         │    ╭►│         │           │
 ─────────►│input 1├╯ └─────────┘    │ └─────────┘           │
          ├───────┘                 │                       │
 frames   ├───────┐ ┌─────┐ ┌─────┬─╯              ┌────────┤ frames
 ─────────►│input 2├►│scale├►│split├───────────────►│output 1├────────►
          ├───────┘ └─────┘ └─────┘                └────────┤
          └─────────────────────────────────────────────────┘
@end verbatim
 Frames from second input are overlaid over those from the first. Frames from the
 third input are rescaled, then the duplicated into two identical streams. One of
 them is overlaid over the combined first two inputs, with the result exposed as
 the filtergraph's first output. The other duplicate ends up being the
 filtergraph's second output.
@item
@emph{Encoders} receive raw audio, video, or subtitle @emph{frames} and encode
 them into encoded @emph{packets}. The encoding (compression) process is
 typically @emph{lossy} - it degrades stream quality to make the output smaller;
 some encoders are @emph{lossless}, but at the cost of much higher output size. A
 video or audio encoder receives its input from some filtergraph's output,
 subtitle encoders receive input from a decoder (since subtitle filtering is not
 supported yet). Every encoder is associated with some muxer's @emph{output
 elementary stream} and sends its output to that muxer.
 A schematic representation of an encoder looks like this:
@verbatim
             ┌─────────┐
 raw frames  │         │ packets
 ────────────►│ encoder ├─────────►
             │         │
             └─────────┘
@end verbatim
@item
@emph{Muxers} (short for "multiplexers") receive encoded @emph{packets} for
 their elementary streams from encoders (the @emph{transcoding} path) or directly
 from demuxers (the @emph{streamcopy} path), interleave them (when there is more
 than one elementary stream), and write the resulting bytes into the output file
 (or pipe, network stream, etc.).
 A schematic representation of a muxer looks like this:
@verbatim
                       ┌──────────────────────┬───────────┐
 packets for stream 0  │                      │   muxer   │
 ──────────────────────►│  elementary stream 0 ╞═══════════╡
                       │                      │           │
                       ├──────────────────────┤  global   │
 packets for stream 1  │                      │properties │
 ──────────────────────►│  elementary stream 1 │   and     │
                       │                      │ metadata  │
                       ├──────────────────────┤           │
                       │                      │           │
                       │     ...........      │           │
                       │                      │           │
                       ├──────────────────────┤           │
 packets for stream N  │                      │           │
 ──────────────────────►│  elementary stream N │           │
                       │                      │           │
                       └──────────────────────┴─────┬─────┘
                                                    │
                     write to file, network stream, │
                         grabbing device, etc.      │
                                                    │
                                                    ▼
@end verbatim
@end itemize
@section Streamcopy
 The simplest pipeline in @command{ffmpeg} is single-stream
@emph{streamcopy}, that is copying one @emph{input elementary stream}'s packets
 without decoding, filtering, or encoding them. As an example, consider an input
 file called @file{INPUT.mkv} with 3 elementary streams, from which we take the
 second and write it to file @file{OUTPUT.mp4}. A schematic representation of
 such a pipeline looks like this:
@verbatim
 ┌──────────┬─────────────────────┐
 │ demuxer  │                     │ unused
 ╞══════════╡ elementary stream 0 ├────────╳
 │          │                     │
 │INPUT.mkv ├─────────────────────┤          ┌──────────────────────┬───────────┐
 │          │                     │ packets  │                      │   muxer   │
 │          │ elementary stream 1 ├─────────►│  elementary stream 0 ╞═══════════╡
 │          │                     │          │                      │OUTPUT.mp4 │
 │          ├─────────────────────┤          └──────────────────────┴───────────┘
 │          │                     │ unused
 │          │ elementary stream 2 ├────────╳
 │          │                     │
 └──────────┴─────────────────────┘
@end verbatim
 The above pipeline can be constructed with the following commandline:
@example
 ffmpeg -i INPUT.mkv -map 0:1 -c copy OUTPUT.mp4
@end example
 In this commandline
@itemize
@item
 there is a single input @file{INPUT.mkv};
@item
 there are no input options for this input;
@item
 there is a single output @file{OUTPUT.mp4};
@item
 there are two output options for this output:
@itemize
@item
@code{-map 0:1} selects the input stream to be used - from input with index 0
 (i.e. the first one) the stream with index 1 (i.e. the second one);
@item
@code{-c copy} selects the @code{copy} encoder, i.e. streamcopy with no decoding
 or encoding.
@end itemize
@end itemize
 Streamcopy is useful for changing the elementary stream count, container format,
 or modifying container-level metadata. Since there is no decoding or encoding,
 it is very fast and there is no quality loss. However, it might not work in some
 cases because of a variety of factors (e.g. certain information required by the
 target container is not available in the source). Applying filters is obviously
 also impossible, since filters work on decoded frames.
 More complex streamcopy scenarios can be constructed - e.g. combining streams
 from two input files into a single output:
@verbatim
 ┌──────────┬────────────────────┐         ┌────────────────────┬───────────┐
 │ demuxer 0│                    │ packets │                    │   muxer   │
 ╞══════════╡elementary stream 0 ├────────►│elementary stream 0 ╞═══════════╡
 │INPUT0.mkv│                    │         │                    │OUTPUT.mp4 │
 └──────────┴────────────────────┘         ├────────────────────┤           │
 ┌──────────┬────────────────────┐         │                    │           │
 │ demuxer 1│                    │ packets │elementary stream 1 │           │
 ╞══════════╡elementary stream 0 ├────────►│                    │           │
 │INPUT1.aac│                    │         └────────────────────┴───────────┘
 └──────────┴────────────────────┘
@end verbatim
 that can be built by the commandline
@example
 ffmpeg -i INPUT0.mkv -i INPUT1.aac -map 0:0 -map 1:0 -c copy OUTPUT.mp4
@end example
 The output @option{-map} option is used twice here, creating two streams in the
 output file - one fed by the first input and one by the second. The single
 instance of the @option{-c} option selects streamcopy for both of those streams.
 You could also use multiple instances of this option together with
@ref{Stream specifiers} to apply different values to each stream, as will be
 demonstrated in following sections.
 A converse scenario is splitting multiple streams from a single input into
 multiple outputs:
@verbatim
 ┌──────────┬─────────────────────┐          ┌───────────────────┬───────────┐
 │ demuxer  │                     │ packets  │                   │ muxer 0   │
 ╞══════════╡ elementary stream 0 ├─────────►│elementary stream 0╞═══════════╡
 │          │                     │          │                   │OUTPUT0.mp4│
 │INPUT.mkv ├─────────────────────┤          └───────────────────┴───────────┘
 │          │                     │ packets  ┌───────────────────┬───────────┐
 │          │ elementary stream 1 ├─────────►│                   │ muxer 1   │
 │          │                     │          │elementary stream 0╞═══════════╡
 └──────────┴─────────────────────┘          │                   │OUTPUT1.mp4│
                                            └───────────────────┴───────────┘
@end verbatim
 built with
@example
 ffmpeg -i INPUT.mkv -map 0:0 -c copy OUTPUT0.mp4 -map 0:1 -c copy OUTPUT1.mp4
@end example
 Note how a separate instance of the @option{-c} option is needed for every
 output file even though their values are the same. This is because non-global
 options (which is most of them) only apply in the context of the file before
 which they are placed.
 These  examples can of course be further generalized into arbitrary remappings
 of any number of inputs into any number of outputs.
@section Transcoding
@emph{Transcoding} is the process of decoding a stream and then encoding it
 again. Since encoding tends to be computationally expensive and in most cases
 degrades the stream quality (i.e. it is @emph{lossy}), you should only transcode
 when you need to and perform streamcopy otherwise. Typical reasons to transcode
 are:
@itemize
@item
 applying filters - e.g. resizing, deinterlacing, or overlaying video; resampling
 or mixing audio;
@item
 you want to feed the stream to something that cannot decode the original codec.
@end itemize
 Note that @command{ffmpeg} will transcode all audio, video, and subtitle streams
 unless you specify @option{-c copy} for them.
 Consider an example pipeline that reads an input file with one audio and one
 video stream, transcodes the video and copies the audio into a single output
 file. This can be schematically represented as follows
@verbatim
 ┌──────────┬─────────────────────┐
 │ demuxer  │                     │       audio packets
 ╞══════════╡ stream 0 (audio)    ├─────────────────────────────────────╮
 │          │                     │                                     │
 │INPUT.mkv ├─────────────────────┤ video    ┌─────────┐     raw        │
 │          │                     │ packets  │  video  │ video frames   │
 │          │ stream 1 (video)    ├─────────►│ decoder ├──────────────╮ │
 │          │                     │          │         │              │ │
 └──────────┴─────────────────────┘          └─────────┘              │ │
                                                                     ▼ ▼
                                                                     │ │
 ┌──────────┬─────────────────────┐ video    ┌─────────┐              │ │
 │ muxer    │                     │ packets  │  video  │              │ │
 ╞══════════╡ stream 0 (video)    │◄─────────┤ encoder ├──────────────╯ │
 │          │                     │          │(libx264)│                │
 │OUTPUT.mp4├─────────────────────┤          └─────────┘                │
 │          │                     │                                     │
 │          │ stream 1 (audio)    │◄────────────────────────────────────╯
 │          │                     │
 └──────────┴─────────────────────┘
@end verbatim
 and implemented with the following commandline:
@example
 ffmpeg -i INPUT.mkv -map 0:v -map 0:a -c:v libx264 -c:a copy OUTPUT.mp4
@end example
 Note how it uses stream specifiers @code{:v} and @code{:a} to select input
 streams and apply different values of the @option{-c} option to them; see the
@ref{Stream specifiers} section for more details.
 Encoded packets are then passed to the decoder (unless streamcopy is selected
 for the stream, see further for a description). The decoder produces
 uncompressed frames (raw video/PCM audio/...) which can be processed further by
 filtering (see next section). After filtering, the frames are passed to the
 encoder, which encodes them and outputs encoded packets. Finally, those are
 passed to the muxer, which writes the encoded packets to the output file.
@section Filtering
-
+Before encoding, @command{ffmpeg} can process raw audio and video frames using
-When transcoding, audio and video streams can be filtered before encoding, with
+filters from the libavfilter library. Several chained filters form a filter
-either a @emph{simple} or @emph{complex} filtergraph.
+graph. @command{ffmpeg} distinguishes between two types of filtergraphs:
 simple and complex.
@subsection Simple filtergraphs
 Simple filtergraphs are those that have exactly one input and output, both of
-the same type (audio or video). They are configured with the per-stream
+the same type. In the above diagram they can be represented by simply inserting
-@option{-filter} option (with @option{-vf} and @option{-af} aliases for
+an additional step between decoding and encoding:
@option{-filter:v} (video) and @option{-filter:a} (audio) respectively). Note
 that simple filtergraphs are tied to their output stream, so e.g. if you have
 multiple audio streams, @option{-af} will create a separate filtergraph for each
 one.
 Taking the transcoding example from above, adding filtering (and omitting audio,
 for clarity) makes it look like this:
@verbatim
-┌──────────┬───────────────┐
+ _________                        ______________
-│ demuxer  │               │          ┌─────────┐
+|         |                      |              |
-╞══════════╡ video stream  │ packets  │  video  │ frames
+| decoded |                      | encoded data |
-│INPUT.mkv │               ├─────────►│ decoder ├─────►───╮
+| frames  |\                   _ | packets      |
-│          │               │          └─────────┘         │
+|_________| \                  /||______________|
-└──────────┴───────────────┘                              │
+             \   __________   /
-                                  ╭───────────◄───────────╯
+  simple     _\||          | /  encoder
-                                  │   ┌────────────────────────┐
+  filtergraph   | filtered |/
-                                  │   │  simple filtergraph    │
+                | frames   |
-                                  │   ╞════════════════════════╡
+                |__________|
-                                  │   │  ┌───────┐  ┌───────┐  │
+
                                  ╰──►├─►│ yadif ├─►│ scale ├─►├╮
                                      │  └───────┘  └───────┘  ││
                                      └────────────────────────┘│
                                                                │
                                                                │
 ┌──────────┬───────────────┐ video    ┌─────────┐               │
 │ muxer    │               │ packets  │  video  │               │
 ╞══════════╡ video stream  │◄─────────┤ encoder ├───────◄───────╯
 │OUTPUT.mp4│               │          │         │
 │          │               │          └─────────┘
 └──────────┴───────────────┘
@end verbatim
-@subsection Complex filtergraphs
+Simple filtergraphs are configured with the per-stream @option{-filter} option
 (with @option{-vf} and @option{-af} aliases for video and audio respectively).
 A simple filtergraph for video can look for example like this:
@verbatim
 _______        _____________        _______        ________
 |       |      |             |      |       |      |        |
 | input | ---> | deinterlace | ---> | scale | ---> | output |
 |_______|      |_____________|      |_______|      |________|
@end verbatim
 Note that some filters change frame properties but not frame contents. E.g. the
@code{fps} filter in the example above changes number of frames, but does not
 touch the frame contents. Another example is the @code{setpts} filter, which
 only sets timestamps and otherwise passes the frames unchanged.
@subsection Complex filtergraphs
 Complex filtergraphs are those which cannot be described as simply a linear
-processing chain applied to one stream. This is the case, for example, when the
+processing chain applied to one stream. This is the case, for example, when the graph has
-graph has more than one input and/or output, or when output stream type is
+more than one input and/or output, or when output stream type is different from
-different from input. Complex filtergraphs are configured with the
+input. They can be represented with the following diagram:
-@option{-filter_complex} option. Note that this option is global, since a
+
-complex filtergraph, by its nature, cannot be unambiguously associated with a
+@verbatim
-single stream or file. Each instance of @option{-filter_complex} creates a new
+ _________
-complex filtergraph, and there can be any number of them.
+|         |
 | input 0 |\                    __________
 |_________| \                  |          |
             \   _________    /| output 0 |
              \ |         |  / |__________|
 _________     \| complex | /
 |         |     |         |/
 | input 1 |---->| filter  |\
 |_________|     |         | \   __________
               /| graph   |  \ |          |
              / |         |   \| output 1 |
 _________   /  |_________|    |__________|
 |         | /
 | input 2 |/
 |_________|
@end verbatim
 Complex filtergraphs are configured with the @option{-filter_complex} option.
 Note that this option is global, since a complex filtergraph, by its nature,
 cannot be unambiguously associated with a single stream or file.
 The @option{-lavfi} option is equivalent to @option{-filter_complex}.
 A trivial example of a complex filtergraph is the @code{overlay} filter, which
 has two video inputs and one video output, containing one video overlaid on top
 of the other. Its audio counterpart is the @code{amix} filter.
-@anchor{Loopback decoders}
+@section Stream copy
 Stream copy is a mode selected by supplying the @code{copy} parameter to the
@option{-codec} option. It makes @command{ffmpeg} omit the decoding and encoding
 step for the specified stream, so it does only demuxing and muxing. It is useful
 for changing the container format or modifying container-level metadata. The
 diagram above will, in this case, simplify to this:
@verbatim
 _______              ______________            ________
 |       |            |              |          |        |
 | input |  demuxer   | encoded data |  muxer   | output |
 | file  | ---------> | packets      | -------> | file   |
 |_______|            |______________|          |________|
@end verbatim
 Since there is no decoding or encoding, it is very fast and there is no quality
 loss. However, it might not work in some cases because of many factors. Applying
 filters is obviously also impossible, since filters work on uncompressed data.
@section Loopback decoders
 While decoders are normally associated with demuxer streams, it is also possible
 to create "loopback" decoders that decode the output from some encoder and allow
@ -526,41 +259,8 @@ reads an input video and
@end itemize
 Such a transcoding pipeline can be represented with the following diagram:
@verbatim
 ┌──────────┬───────────────┐
 │ demuxer  │               │   ┌─────────┐            ┌─────────┐    ┌────────────────────┐
 ╞══════════╡ video stream  │   │  video  │            │  video  │    │ null muxer         │
 │   INPUT  │               ├──►│ decoder ├──┬────────►│ encoder ├─┬─►│(discards its input)│
 │          │               │   └─────────┘  │         │(libx264)│ │  └────────────────────┘
 └──────────┴───────────────┘                │         └─────────┘ │
                                 ╭───────◄──╯   ┌─────────┐       │
                                 │              │loopback │       │
                                 │ ╭─────◄──────┤ decoder ├────◄──╯
                                 │ │            └─────────┘
                                 │ │
                                 │ │
                                 │ │  ┌───────────────────┐
                                 │ │  │complex filtergraph│
                                 │ │  ╞═══════════════════╡
                                 │ │  │  ┌─────────────┐  │
                                 ╰─╫─►├─►│   hstack    ├─►├╮
                                   ╰─►├─►│             │  ││
                                      │  └─────────────┘  ││
                                      └───────────────────┘│
                                                           │
 ┌──────────┬───────────────┐  ┌─────────┐                  │
 │ muxer    │               │  │  video  │                  │
 ╞══════════╡ video stream  │◄─┤ encoder ├───────◄──────────╯
 │  OUTPUT  │               │  │ (ffv1)  │
 │          │               │  └─────────┘
 └──────────┴───────────────┘
@end verbatim
@c man end DETAILED DESCRIPTION
@anchor{Stream selection}
@chapter Stream selection
@c man begin STREAM SELECTION
@ -921,25 +621,24 @@ ffmpeg -i INPUT -metadata:s:a:0 language=eng OUTPUT
@end example
@item -disposition[:stream_specifier] @var{value} (@emph{output,per-stream})
-Sets the disposition flags for a stream.
+Sets the disposition for a stream.
-Default value: by default, all disposition flags are copied from the input stream,
+By default, the disposition is copied from the input stream, unless the output
-unless the output stream this option applies to is fed by a complex filtergraph
+stream this option applies to is fed by a complex filtergraph - in that case the
- in that case no disposition flags are set by default.
+disposition is unset by default.
-@var{value} is a sequence of disposition flags separated by '+' or '-'. A '+'
+@var{value} is a sequence of items separated by '+' or '-'. The first item may
-prefix adds the given disposition, '-' removes it. If the first flag is also
+also be prefixed with '+' or '-', in which case this option modifies the default
-prefixed with '+' or '-', the resulting disposition is the default value
+value. Otherwise (the first item is not prefixed) this options overrides the
-updated by @var{value}. If the first flag is not prefixed, the resulting
+default value. A '+' prefix adds the given disposition, '-' removes it. It is
-disposition is @var{value}. It is also possible to clear the disposition by
+also possible to clear the disposition by setting it to 0.
 setting it to 0.
 If no @code{-disposition} options were specified for an output file, ffmpeg will
-automatically set the 'default' disposition flag on the first stream of each type,
+automatically set the 'default' disposition on the first stream of each type,
 when there are multiple streams of this type in the output file and no stream of
 that type is already marked as default.
-The @code{-dispositions} option lists the known disposition flags.
+The @code{-dispositions} option lists the known dispositions.
 For example, to make the second audio stream the default stream:
@example
@ -957,29 +656,6 @@ To add an embedded cover/thumbnail:
 ffmpeg -i in.mp4 -i IMAGE -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic out.mp4
@end example
 To add the 'original' and remove the 'comment' disposition flag from the first
 audio stream without removing its other disposition flags:
@example
 ffmpeg -i in.mkv -c copy -disposition:a:0 +original-comment out.mkv
@end example
 To remove the 'original' and add the 'comment' disposition flag to the first
 audio stream without removing its other disposition flags:
@example
 ffmpeg -i in.mkv -c copy -disposition:a:0 -original+comment out.mkv
@end example
 To set only the 'original' and 'comment' disposition flags on the first audio
 stream (and remove its other disposition flags):
@example
 ffmpeg -i in.mkv -c copy -disposition:a:0 original+comment out.mkv
@end example
 To remove all disposition flags from the first audio stream:
@example
 ffmpeg -i in.mkv -c copy -disposition:a:0 0 out.mkv
@end example
 Not all muxers support embedded thumbnails, and those who do, only support a few formats, like JPEG or PNG.
@item -program [title=@var{title}:][program_num=@var{program_num}:]st=@var{stream}[:st=@var{stream}...] (@emph{output})
@ -1048,7 +724,7 @@ The following flags are available:
@table @option
@item recon_gain
-Whether to signal if recon_gain is present as metadata in parameter blocks within frames
+Wether to signal if recon_gain is present as metadata in parameter blocks within frames
@end table
@item output_gain
@ -1196,9 +872,9 @@ ffmpeg -i front.wav -i back.wav -i center.wav -i lfe.wav
 demixing=parameter_id=998,
 recon_gain=parameter_id=101,
 layer=ch_layout=stereo,
-layer=ch_layout=5.1(side),
+layer=ch_layout=5.1,
 -stream_group type=iamf_mix_presentation:id=2:stg=0:annotations=en-us=Mix_Presentation,
-submix=parameter_id=100:parameter_rate=48000|element=stg=0:parameter_id=100:annotations=en-us=Scalable_Submix|layout=sound_system=stereo|layout=sound_system=5.1(side)
+submix=parameter_id=100:parameter_rate=48000|element=stg=0:parameter_id=100:annotations=en-us=Scalable_Submix|layout=sound_system=stereo|layout=sound_system=5.1
 -streamid 0:0 -streamid 1:1 -streamid 2:2 -streamid 3:3 output.iamf
@end example
@ -1373,62 +1049,31 @@ The properties where a change triggers reinitialization are,
 for video, frame resolution or pixel format;
 for audio, sample format, sample rate, channel count or channel layout.
@item -drop_changed[:@var{stream_specifier}] @var{integer} (@emph{input,per-stream})
 This boolean option determines whether a frame with differing frame parameters mid-stream
 gets dropped instead of leading to filtergraph reinitialization, as that would lead to loss
 of filter state. Generally useful to avoid corrupted yet decodable packets in live streaming
 inputs. Default is false.
@item -filter_threads @var{nb_threads} (@emph{global})
 Defines how many threads are used to process a filter pipeline. Each pipeline
 will produce a thread pool with this many threads available for parallel processing.
 The default is the number of available CPUs.
@item -filter_buffered_frames @var{nb_frames} (@emph{global})
 Defines the maximum number of buffered frames allowed in a filtergraph. Under
 normal circumstances, a filtergraph should not buffer more than a few frames,
 especially if frames are being fed to it and read from it in a balanced way
 (which is the intended behavior in ffmpeg). That said, this option allows you
 to limit the total number of frames buffered across all links in a filtergraph.
 If more frames are generated, filtering is aborted and an error is returned.
 The default value is 0, which means no limit.
@item -pre[:@var{stream_specifier}] @var{preset_name} (@emph{output,per-stream})
 Specify the preset for matching stream(s).
@item -stats (@emph{global})
-Log encoding progress/statistics as "info"-level log (see @code{-loglevel}).
+Print encoding progress/statistics. It is on by default, to explicitly
-It is on by default, to explicitly disable it you need to specify @code{-nostats}.
+disable it you need to specify @code{-nostats}.
@item -stats_period @var{time} (@emph{global})
 Set period at which encoding progress/statistics are updated. Default is 0.5 seconds.
@item -print_graphs (@emph{global})
 Prints execution graph details to stderr in the format set via -print_graphs_format.
@item -print_graphs_file @var{filename} (@emph{global})
 Writes execution graph details to the specified file in the format set via -print_graphs_format.
@item -print_graphs_format @var{format} (@emph{global})
 Sets the output format (available formats are: default, compact, csv, flat, ini, json, xml, mermaid, mermaidhtml)
 The default format is json.
@item -progress @var{url} (@emph{global})
 Send program-friendly progress information to @var{url}.
 Progress information is written periodically and at the end of
 the encoding process. It is made of "@var{key}=@var{value}" lines. @var{key}
 consists of only alphanumeric characters. The last key of a sequence of
-progress information is always "progress" with the value "continue" or "end".
+progress information is always "progress".
 The update period is set using @code{-stats_period}.
 For example, log progress information to stdout:
@example
 ffmpeg -progress pipe:1 -i in.mkv out.mkv
@end example
@anchor{stdin option}
@item -stdin
 Enable interaction on standard input. On by default unless standard input is
@ -2010,9 +1655,6 @@ transcoding, without copying the frames into the system memory.
 For it to work, both the decoder and the encoder must support QSV acceleration
 and no filters must be used.
@item videotoolbox
 Use Video Toolbox hardware acceleration.
@end table
 This option has no effect if the selected hwaccel is not available or not
@ -2157,7 +1799,7 @@ Set the size of the canvas used to render subtitles.
@section Advanced options
@table @option
-@item -map [-]@var{input_file_id}[:@var{stream_specifier}][:@var{view_specifier}][:?] | @var{[linklabel]} (@emph{output})
+@item -map [-]@var{input_file_id}[:@var{stream_specifier}][:@var{view_specifier}][?] | @var{[linklabel]} (@emph{output})
 Create one or more streams in the output file. This option has two forms for
 specifying the data source(s): the first selects one or more streams from some
@ -2353,11 +1995,6 @@ Read input at native frame rate. This is equivalent to setting @code{-readrate 1
@item -readrate_initial_burst @var{seconds}
 Set an initial read burst time, in seconds, after which @option{-re/-readrate}
 will be enforced.
@item -readrate_catchup @var{speed} (@emph{input})
 If either the input or output is blocked leading to actual read speed falling behind the
 specified readrate, then this rate takes effect till the input catches up with the
 specified readrate. Must not be lower than the primary readrate.
@item -vsync @var{parameter} (@emph{global})
@itemx -fps_mode[:@var{stream_specifier}] @var{parameter} (@emph{output,per-stream})
 Set video sync method / framerate mode. vsync is applied to all output video streams
--- a/doc/ffprobe.texi
+++ b/doc/ffprobe.texi
@ -139,6 +139,13 @@ stream.
 All the container format information is printed within a section with
 name "FORMAT".
@item -show_format_entry @var{name}
 Like @option{-show_format}, but only prints the specified entry of the
 container format information, rather than all. This option may be given more
 than once, then all specified entries will be shown.
 This option is deprecated, use @code{show_entries} instead.
@item -show_entries @var{section_entries}
 Set list of entries to show.
@ -344,19 +351,6 @@ while other writers always print them. This option enables one to control this b
 Valid values are @code{always}/@code{1}, @code{never}/@code{0} and @code{auto}/@code{-1}.
 Default is @var{auto}.
@item -analyze_frames
 Analyze frames and/or their side data up to the provided read interval,
 providing additional information that may be useful at a stream level.
 Must be paired with the @option{-show_streams} option or it will have no effect.
 Currently, the additional fields provided by this option when enabled are the
@code{closed_captions} and @code{film_grain} fields.
 For example, to analyze the first 20 seconds and populate these fields:
@example
 ffprobe -show_streams -analyze_frames -read_intervals "%+20" INPUT
@end example
@item -bitexact
 Force bitexact output, useful to produce output which is not dependent
 on the specific build.
@ -368,12 +362,6 @@ Read @var{input_url}.
 Write output to @var{output_url}. If not specified, the output is sent
 to stdout.
@item -c:@var{media_specifier} @var{codec_name}
@itemx -codec:@var{media_specifier} @var{codec_name}
 Force a specific decoder implementation for the stream identified by
@var{media_specifier}, which can assume the values @code{a} (audio),
@code{v} (video), @code{s} (subtitle), and @code{d} (data).
@end table
@c man end
--- a/doc/ffprobe.xsd
+++ b/doc/ffprobe.xsd
@ -129,7 +129,6 @@
    <xsd:attribute name="pict_type"              type="xsd:string"/>
    <xsd:attribute name="interlaced_frame"       type="xsd:int"   />
    <xsd:attribute name="top_field_first"        type="xsd:int"   />
    <xsd:attribute name="lossless"               type="xsd:int"   />
    <xsd:attribute name="repeat_pict"            type="xsd:int"   />
    <xsd:attribute name="color_range"            type="xsd:string"/>
    <xsd:attribute name="color_space"            type="xsd:string"/>
--- a/doc/fftools-common-opts.texi
+++ b/doc/fftools-common-opts.texi
@ -78,8 +78,7 @@ Match the stream by stream id (e.g. PID in MPEG-TS container).
@item m:@var{key}[:@var{value}]
 Matches streams with the metadata tag @var{key} having the specified value. If
@var{value} is not given, matches streams that contain the given tag with any
-value. The colon character ':' in @var{key} or @var{value} needs to be
+value.
 backslash-escaped.
@item disp:@var{dispositions}[:@var{additional_stream_specifier}]
 Matches streams with the given disposition(s). @var{dispositions} is a list of
 one or more dispositions (as printed by the @option{-dispositions} option)
@ -226,10 +225,6 @@ and the "Last message repeated n times" line will be omitted.
 Indicates that log output should add a @code{[level]} prefix to each message
 line. This can be used as an alternative to log coloring, e.g. when dumping the
 log to file.
@item time
 Indicates that log lines should be prefixed with time information.
@item datetime
 Indicates that log lines should be prefixed with date and time information.
@end table
 Flags can also be used alone by adding a '+'/'-' prefix to set/reset a single
 flag without affecting other @var{flags} or changing @var{loglevel}. When
--- a/doc/filter_design.txt
+++ b/doc/filter_design.txt
@ -214,7 +214,6 @@ Frame scheduling
    FF_FILTER_FORWARD_STATUS(inlink, outlink);
    FF_FILTER_FORWARD_STATUS_ALL(inlink, filter);
    FF_FILTER_FORWARD_WANTED(outlink, inlink);
    FF_FILTER_FORWARD_WANTED_ANY(filter, inlink);
  filter_frame
  ------------
--- a/doc/filters.texi
+++ b/doc/filters.texi
--- a/doc/general_contents.texi
+++ b/doc/general_contents.texi
@ -162,7 +162,7 @@ Then pass @code{--enable-libmp3lame} to configure to enable it.
@section LCEVCdec
-FFmpeg can make use of the liblcevc_dec library for LCEVC enhancement layer
+FFmpeg can make use of the liblcevc_dec library for LCEVC enhacement layer
 decoding on supported bitstreams.
 Go to @url{https://github.com/v-novaltd/LCEVCdec} and follow the instructions
@ -625,7 +625,6 @@ library:
@item raw AMR-NB                @tab   @tab X
@item raw AMR-WB                @tab   @tab X
@item raw APAC                  @tab   @tab X
@item raw APV                   @tab X @tab X
@item raw aptX                  @tab X @tab X
@item raw aptX HD               @tab X @tab X
@item raw Bonk                  @tab   @tab X
@ -638,7 +637,6 @@ library:
@item raw E-AC-3                @tab X @tab X
@item raw EVC                   @tab X @tab X
@item raw FLAC                  @tab X @tab X
@item raw G.728                 @tab   @tab X
@item raw GSM                   @tab   @tab X
@item raw H.261                 @tab X @tab X
@item raw H.263                 @tab X @tab X
@ -897,7 +895,6 @@ following image formats are supported:
    @tab fourcc: apch,apcn,apcs,apco,ap4h,ap4x
@item Apple QuickDraw        @tab     @tab  X
    @tab fourcc: qdrw
@item APV                    @tab     @tab  X
@item Argonaut Video         @tab     @tab  X
    @tab Used in some Argonaut games.
@item Asus v1                @tab  X  @tab  X
@ -1112,7 +1109,6 @@ following image formats are supported:
@item RealVideo 3.0          @tab     @tab  X
    @tab still far from ideal
@item RealVideo 4.0          @tab     @tab  X
@item RealVideo 6.0          @tab     @tab  X
@item Renderware TXD (TeXture Dictionary)  @tab     @tab  X
    @tab Texture dictionaries used by the Renderware Engine.
@item RivaTuner Video        @tab     @tab  X
@ -1236,7 +1232,6 @@ following image formats are supported:
@item ADPCM IMA Duck DK4     @tab     @tab  X
    @tab Used in some Sega Saturn console games.
@item ADPCM IMA Radical      @tab     @tab  X
@item ADPCM IMA Xbox         @tab     @tab  X
@item ADPCM Microsoft        @tab  X  @tab  X
@item ADPCM MS IMA           @tab  X  @tab  X
@item ADPCM Nintendo Gamecube AFC  @tab     @tab  X
@ -1244,7 +1239,6 @@ following image formats are supported:
@item ADPCM Nintendo THP  @tab     @tab  X
@item ADPCM Playstation      @tab     @tab  X
@item ADPCM QT IMA           @tab  X  @tab  X
@item ADPCM Sanyo            @tab     @tab  X
@item ADPCM SEGA CRI ADX     @tab  X  @tab  X
    @tab Used in Sega Dreamcast games.
@item ADPCM Shockwave Flash  @tab  X  @tab  X
@ -1319,7 +1313,6 @@ following image formats are supported:
@item FLAC (Free Lossless Audio Codec)  @tab  X  @tab  IX
@item FTR Voice              @tab     @tab  X
@item G.723.1                @tab X   @tab  X
@item G.728                  @tab     @tab  X
@item G.729                  @tab     @tab  X
@item GSM                    @tab  E  @tab  X
    @tab encoding supported through external library libgsm
--- a/doc/git-howto.texi
+++ b/doc/git-howto.texi
@ -71,6 +71,7 @@ git clone git@@ffmpeg.org:ffmpeg-web <target>
 This will put the source of the FFmpeg website into the directory
@var{<target>} and let you push back your changes to the remote repository.
 (Note that @var{gil} stands for GItoLite and is not a typo of @var{git}.)
 If you don't have write-access to the ffmpeg-web repository, you can
 create patches after making a read-only ffmpeg-web clone:
@ -142,7 +143,7 @@ git log <filename(s)>
@end example
 You may also use the graphical tools like @command{gitview} or @command{gitk}
-or the web interface available at @url{https://git.ffmpeg.org/ffmpeg.git}.
+or the web interface available at @url{http://source.ffmpeg.org/}.
@section Checking source tree status
--- a/doc/htmlxref.cnf
+++ b/doc/htmlxref.cnf
@ -1,6 +0,0 @@
 ffmpeg mono ./ffmpeg.html
 ffmpeg-filters mono ./ffmpeg-filters.html
 ffmpeg-formats mono ./ffmpeg-formats.html
 ffmpeg-resampler mono ./ffmpeg-resampler.html
 ffmpeg-scaler mono ./ffmpeg-scaler.html
 ffmpeg-utils mono ./ffmpeg-utils.html
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@ -220,6 +220,41 @@ $ ffmpeg -f avfoundation -capture_raw_data true -i "zr100:none" out.dv
@end itemize
@section bktr
 BSD video input device. Deprecated and will be removed - please contact
 the developers if you are interested in maintaining it.
@subsection Options
@table @option
@item framerate
 Set the frame rate.
@item video_size
 Set the video frame size. Default is @code{vga}.
@item standard
 Available values are:
@table @samp
@item pal
@item ntsc
@item secam
@item paln
@item palm
@item ntscj
@end table
@end table
@section decklink
 The decklink input device provides capture capabilities for Blackmagic
@ -704,7 +739,7 @@ Win32 GDI-based screen capture device.
 This device allows you to capture a region of the display on Windows.
-Amongst options for the input filenames are such elements as:
+Amongst options for the imput filenames are such elements as:
@example
 desktop
@end example
--- a/doc/infra.txt
+++ b/doc/infra.txt
@ -1,18 +1,8 @@
 FFmpeg Infrastructure:
 ======================
 Trademark:
 ~~~~~~~~~~
 ffmpeg trademark registered in france by ffmpeg creator.
 Domain + NS:
 ~~~~~~~~~~~~
 ffmpeg.org domain name
 ns1.avcodec.org Primary Name server (provided by Telepoint, hosted at Telepoint in bulgaria)
 ns2.avcodec.org Replica Name server (provided by an ffmpeg developer, hosted at Hetzner in germany)
 ns3.avcodec.org Replica Name server (provided by an ffmpeg developer, hosted at Prometeus Cdlan in italy)
 Servers:
 ~~~~~~~~
@ -33,8 +23,6 @@ Web, mail, and public facing git, also website git
 fftrac VM:
 ----------
 trac.ffmpeg.org         Issue tracking
 gpg encrypted backups of the trac repositories are created once a day
 and can be downloaded by any of the admins.
 ffaux VM:
@ -77,9 +65,6 @@ Github mirrors are redundantly synced by multiple people
 You need a new git repository related to FFmpeg ? contact root at ffmpeg.org
 git repositories are managed by gitolite, every change to permissions is
 logged, including when, what and by whom
 Fate:
 ~~~~~
@ -102,47 +87,8 @@ You need a VM, docker container for FFmpeg? contact root at ffmpeg.org
 Multimedia Wiki:
 ~~~~~~~~~~~~~~~~
 The Multimedia Wiki http://wiki.multimedia.cx is ran by Mike Melanson.
 While not directly part of FFmpeg infrastructure, technical codec and format
 information written by FFmpeg developers can be found within.
 It is our unofficial official tech wiki. For access contact Mike.
 IRC:
 ~~~~
 irc channels are at https://libera.chat/
 irc channel archives are at https://libera.irclog.whitequark.org
 #ffmpeg and #ffmpeg-devel founder/admins: BtbN, Michael, Compn
 #ffmpeg-meeting founder/admins: BtbN, Michael
 Twitter aka X:
 ~~~~~~~~~~~~~~
 https://twitter.com/FFmpeg or https://x.com/FFmpeg
 If you would like to post to twitter please contact twitter MAINTAINERS
 for access. We want more developers posting to twitter!
 Reddit:
 ~~~~~~~
 https://www.reddit.com/r/ffmpeg/
 moderated by Gyan
 Facebook:
 ~~~~~~~~~
 https://www.facebook.com/ffmpeg
 ???
 Wikipedia entry:
 ~~~~~~~~~~~~~~~~
 https://en.wikipedia.org/wiki/FFmpeg
--- a/doc/libav-merge.txt
+++ b/doc/libav-merge.txt
@ -0,0 +1,115 @@
 CONTEXT
 =======
 The FFmpeg project merges all the changes from the Libav project
 (https://libav.org) since the origin of the fork (around 2011).
 With the exceptions of some commits due to technical/political disagreements or
 issues, the changes are merged on a more or less regular schedule (daily for
 years thanks to Michael, but more sparse nowadays).
 WHY
 ===
 The majority of the active developers believe the project needs to keep this
 policy for various reasons.
 The most important one is that we don't want our users to have to choose
 between two distributors of libraries of the exact same name in order to have a
 different set of features and bugfixes. By taking the responsibility of
 unifying the two codebases, we allow users to benefit from the changes from the
 two teams.
 Today, FFmpeg has a much larger user database (we are distributed by every
 major distribution), so we consider this mission a priority.
 A different approach to the merge could have been to pick the changes we are
 interested in and drop most of the cosmetics and other less important changes.
 Unfortunately, this makes the following picks much harder, especially since the
 Libav project is involved in various deep API changes. As a result, we decide
 to virtually take everything done there.
 Any Libav developer is of course welcome anytime to contribute directly to the
 FFmpeg tree. Of course, we fully understand and are forced to accept that very
 few Libav developers are interested in doing so, but we still want to recognize
 their work. This leads us to create merge commits for every single one from
 Libav. The original commit appears totally unchanged with full authorship in
 our history (and the conflict are solved in the merge one). That way, not a
 single thing from Libav will be lost in the future in case some reunification
 happens, or that project disappears one way or another.
 DOWNSIDES
 =========
 Of course, there are many downsides to this approach.
 - It causes a non negligible merge commits pollution. We make sure there are
  not several level of merges entangled (we do a 1:1 merge/commit), but it's
  still a non-linear history.
 - Many duplicated work. For instance, we added libavresample in our tree to
  keep compatibility with Libav when our libswresample was already covering the
  exact same purpose. The same thing happened for various elements such as the
  ProRes support (but differences in features, bugs, licenses, ...). There are
  many work to do to unify them, and any help is very much welcome.
 - So much manpower from both FFmpeg and Libav is lost because of this mess. We
  know it, and we don't know how to fix it. It takes incredible time to do
  these merges, so we have even less time to work on things we personally care
  about. The bad vibes also do not help with keeping our developers motivated.
 - There is a growing technical risk factor with the merges due to the codebase
  differing more and more.
 MERGE GUIDELINES
 ================
 The following gives developer guidelines on how to proceed when merging Libav commits.
 Before starting, you can reduce the risk of errors on merge conflicts by using
 a different merge conflict style:
    $ git config --global merge.conflictstyle diff3
 tools/libav-merge-next-commit is a script to help merging the next commit in
 the queue. It assumes a remote named libav. It has two modes: merge, and noop.
 The noop mode creates a merge with no change to the HEAD. You can pass a hash
 as extra argument to reference a justification (it is common that we already
 have the change done in FFmpeg).
 Also see tools/murge, you can copy and paste a 3 way conflict into its stdin
 and it will display colored diffs. Any arguments to murge (like ones to suppress
 whitespace differences) are passed into colordiff.
 TODO/FIXME/UNMERGED
 ===================
 Stuff that didn't reach the codebase:
 -------------------------------------
 - HEVC DSP and x86 MC SIMD improvements from Libav (see https://ffmpeg.org/pipermail/ffmpeg-devel/2015-December/184777.html)
  - 1f821750f hevcdsp: split the qpel functions by width instead of by the subpixel fraction
  - 818bfe7f0 hevcdsp: split the epel functions by width
  - 688417399 hevcdsp: split the pred functions by width
  - a853388d2 hevc: change the stride of the MC buffer to be in bytes instead of elements
  - 0cef06df0 checkasm: add HEVC MC tests
  - e7078e842 hevcdsp: add x86 SIMD for MC
  - 7993ec19a hevc: Add hevc_get_pixel_4/8/12/16/24/32/48/64
 - use av_cpu_max_align() instead of hardcoding alignment requirements (see https://ffmpeg.org/pipermail/ffmpeg-devel/2017-September/215834.html)
  - f44ec22e0 lavc: use av_cpu_max_align() instead of hardcoding alignment requirements
  - 4de220d2e frame: allow align=0 (meaning automatic) for av_frame_get_buffer()
 - Support recovery from an already present HLS playlist (see 16cb06bb30)
 - Remove all output devices (see 8e7e042d41, 8d3db95f20, 6ce13070bd, d46cd24986 and https://ffmpeg.org/pipermail/ffmpeg-devel/2017-September/216904.html)
 - avcodec/libaomenc: export the Sequence Header OBU as extradata (See a024c3ce9a)
 Collateral damage that needs work locally:
 ------------------------------------------
 - Merge proresenc_anatoliy.c and proresenc_kostya.c
 - Fix MIPS AC3 downmix
 Extra changes needed to be aligned with Libav:
 ----------------------------------------------
 - Switching our examples to the new encode/decode API (see 67d28f4a0f)
 - HEVC IDCT bit depth 12-bit support (Libav added 8 and 10 but doesn't have 12)
--- a/doc/mips.txt
+++ b/doc/mips.txt
@ -60,5 +60,6 @@ Files that have MIPS copyright notice in them:
      compute_antialias_float.h
      lsp_mips.h
      fmtconvert_mips.c
      iirfilter_mips.c
      mpegaudiodsp_mips_fixed.c
      mpegaudiodsp_mips_float.c
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@ -319,7 +319,7 @@ This is the same as the @samp{vob} muxer with a few differences.
@table @option
@item muxrate @var{rate}
 Set user-defined mux rate expressed as a number of bits/s. If not
-specified the automatically computed mux rate is employed. Default value
+specied the automatically computed mux rate is employed. Default value
 is @code{0}.
@item preload @var{delay}
@ -772,7 +772,7 @@ Force a delay expressed in seconds after the last frame of each
 repetition. Default value is @code{0.0}.
@item plays @var{repetitions}
-specify how many times to play the content, @code{0} causes an infinite
+specify how many times to play the content, @code{0} causes an infinte
 loop, with @code{1} there is no loop
@end table
@ -1770,7 +1770,7 @@ for looping indefinitely (default).
@item final_delay @var{delay}
 Force the delay (expressed in centiseconds) after the last frame. Each frame
 ends with a delay until the next frame. The default is @code{-1}, which is a
-special value to tell the muxer to reuse the previous delay. In case of a
+special value to tell the muxer to re-use the previous delay. In case of a
 loop, you might want to customize this value to mark a pause for instance.
@end table
@ -1856,7 +1856,7 @@ This muxer creates an .f4m (Adobe Flash Media Manifest File) manifest, an .abst
 (Adobe Bootstrap File) for each stream, and segment files in a directory
 specified as the output.
-These needs to be accessed by an HDS player through HTTPS for it to be able to
+These needs to be accessed by an HDS player throuhg HTTPS for it to be able to
 perform playback on the generated stream.
@subsection Options
@ -2436,14 +2436,13 @@ ffmpeg -re -i in.ts -b:a:0 32k -b:a:1 64k -b:v:0 1000k \
@item
 Create a single variant stream. Add the @code{#EXT-X-MEDIA} tag with
@code{TYPE=SUBTITLES} in the master playlist with webvtt subtitle group name
-'subtitle' and optional subtitle name, e.g. 'English'. Make sure the input
+'subtitle'. Make sure the input file has one text subtitle stream at least.
 file has one text subtitle stream at least.
@example
 ffmpeg -y -i input_with_subtitle.mkv \
 -b:v:0 5250k -c:v h264 -pix_fmt yuv420p -profile:v main -level 4.1 \
 -b:a:0 256k \
 -c:s webvtt -c:a mp2 -ar 48000 -ac 2 -map 0:v -map 0:a:0 -map 0:s:0 \
- -f hls -var_stream_map "v:0,a:0,s:0,sgroup:subtitle,sname:English" \
+ -f hls -var_stream_map "v:0,a:0,s:0,sgroup:subtitle" \
 -master_pl_name master.m3u8 -t 300 -hls_time 10 -hls_init_time 4 -hls_list_size \
 10 -master_pl_publish_rate 10 -hls_flags \
 delete_segments+discont_start+split_by_time ./tmp/video.m3u8
@ -2538,7 +2537,7 @@ these applications, audio may be played back on a wide range of devices, e.g.,
 headphones, mobile phones, tablets, TVs, sound bars, home theater systems, and
 big screens.
-This format was promoted and designed by Alliance for Open Media.
+This format was promoted and desgined by Alliance for Open Media.
 For more information about this format, see @url{https://aomedia.org/iamf/}.
@ -2940,44 +2939,6 @@ ffmpeg -i INPUT -f md5 -
@end example
@end itemize
@anchor{mccenc}
@section mcc
 Muxer for MacCaption MCC files, it supports MCC versions 1.0 and 2.0.
 MCC files store VANC data, which can include closed captions (EIA-608 and CEA-708), ancillary time code, pan-scan data, etc.
@subsection Options
 The muxer options are:
@table @option
@item override_time_code_rate
 Override the @code{Time Code Rate} value in the output. Defaults to trying to deduce from the stream's @code{time_base}, which often doesn't work.
@item use_u_alias
 Use the @code{U} alias for the byte sequence @code{E1h 00h 00h 00h}.
 Disabled by default because some @file{.mcc} files disagree on whether it has 2 or 3 zero bytes.
@item mcc_version
 The MCC file format version. Must be either 1 or 2, defaults to 2.
@item creation_program
 The creation program. Defaults to this version of FFmpeg.
@item creation_time
 The creation time. Defaults to the current time.
@end table
@subsection Examples
@itemize
@item
 Extract a MXF @code{SMPTE_436M_ANC} stream from a MXF file and write it to a MCC file at 30 fps.
@example
 ffmpeg -i input.mxf -c copy -map 0:d -override_time_code_rate 30 out.mcc
@end example
@item
 Extract EIA-608/CTA-708 closed captions from a @file{.mp4} file and write them to a MCC file at 29.97 fps.
@example
 ffmpeg -f lavfi -i "movie=input.mp4[out+subcc]" -c:s copy -map 0:s -override_time_code_rate 30000/1001 out.mcc
@end example
@end itemize
@section microdvd
 MicroDVD subtitle format muxer.
@ -3917,53 +3878,4 @@ ffmpeg -f webm_dash_manifest -i video1.webm \
       manifest.xml
@end example
@anchor{whip}
@section whip
 WebRTC (Real-Time Communication) muxer that supports sub-second latency streaming according to
 the WHIP (WebRTC-HTTP ingestion protocol) specification.
 This is an experimental feature.
 It uses HTTP as a signaling protocol to exchange SDP capabilities and ICE lite candidates. Then,
 it uses STUN binding requests and responses to establish a session over UDP. Subsequently, it
 initiates a DTLS handshake to exchange the SRTP encryption keys. Lastly, it splits video and
 audio frames into RTP packets and encrypts them using SRTP.
 Ensure that you use H.264 without B frames and Opus for the audio codec. For example, to convert
 an input file with @command{ffmpeg} to WebRTC:
@example
 ffmpeg -re -i input.mp4 -acodec libopus -ar 48000 -ac 2 \
  -vcodec libx264 -profile:v baseline -tune zerolatency -threads 1 -bf 0 \
  -f whip "http://localhost:1985/rtc/v1/whip/?app=live&stream=livestream"
@end example
 For this example, we have employed low latency options, resulting in an end-to-end latency of
 approximately 150ms.
@subsection Options
 This muxer supports the following options:
@table @option
@item handshake_timeout @var{integer}
 Set the timeout in milliseconds for ICE and DTLS handshake.
 Default value is 5000.
@item pkt_size @var{integer}
 Set the maximum size, in bytes, of RTP packets that send out.
 Default value is 1500.
@item authorization @var{string}
 The optional Bearer token for WHIP Authorization.
@item cert_file @var{string}
 The optional certificate file path for DTLS.
@item key_file @var{string}
 The optional private key file path for DTLS.
@end table
@c man end MUXERS
--- a/doc/nut.texi
+++ b/doc/nut.texi
@ -157,3 +157,4 @@ PFD[32]   would for example be signed 32 bit little-endian IEEE float
@item XVID @tab non-compliant MPEG-4 generated by old Xvid
@item XVIX @tab non-compliant MPEG-4 generated by old Xvid with interlacing bug
@end multitable
--- a/doc/optimization.txt
+++ b/doc/optimization.txt
@ -188,7 +188,7 @@ Code that depends on data in registries being untouched, should be written as
 a single __asm__() statement. Ideally, a single function contains only one
 __asm__() block.
-Use external asm (nasm) or inline asm (__asm__()), do not use intrinsics.
+Use external asm (nasm/yasm) or inline asm (__asm__()), do not use intrinsics.
 The latter requires a good optimizing compiler which gcc is not.
 When debugging a x86 external asm compilation issue, if lost in the macro
@ -199,7 +199,7 @@ actual lines causing issues.
 Inline asm vs. external asm
 ---------------------------
 Both inline asm (__asm__("..") in a .c file, handled by a compiler such as gcc)
-and external asm (.s or .asm files, handled by an assembler such as nasm)
+and external asm (.s or .asm files, handled by an assembler such as nasm/yasm)
 are accepted in FFmpeg. Which one to use differs per specific case.
 - if your code is intended to be inlined in a C function, inline asm is always
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@ -301,6 +301,45 @@ ffmpeg -re -i INPUT -c:v rawvideo -pix_fmt bgra -f fbdev /dev/fb0
 See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
@section opengl
 OpenGL output device. Deprecated and will be removed.
 To enable this output device you need to configure FFmpeg with @code{--enable-opengl}.
 This output device allows one to render to OpenGL context.
 Context may be provided by application or default SDL window is created.
 When device renders to external context, application must implement handlers for following messages:
@code{AV_DEV_TO_APP_CREATE_WINDOW_BUFFER} - create OpenGL context on current thread.
@code{AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER} - make OpenGL context current.
@code{AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER} - swap buffers.
@code{AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER} - destroy OpenGL context.
 Application is also required to inform a device about current resolution by sending @code{AV_APP_TO_DEV_WINDOW_SIZE} message.
@subsection Options
@table @option
@item background
 Set background color. Black is a default.
@item no_window
 Disables default SDL window when set to non-zero value.
 Application must provide OpenGL context and both @code{window_size_cb} and @code{window_swap_buffers_cb} callbacks when set.
@item window_title
 Set the SDL window title, if not specified default to the filename specified for the output device.
 Ignored when @option{no_window} is set.
@item window_size
 Set preferred window size, can be a string of the form widthxheight or a video size abbreviation.
 If not specified it defaults to the size of the input video, downscaled according to the aspect ratio.
 Mostly usable when @option{no_window} is not set.
@end table
@subsection Examples
 Play a file on SDL window using OpenGL rendering:
@example
 ffmpeg  -i INPUT -f opengl "window title"
@end example
@section oss
 OSS (Open Sound System) output device.
@ -367,6 +406,78 @@ Play a file on default device on default server:
 ffmpeg  -i INPUT -f pulse "stream name"
@end example
@section sdl
 SDL (Simple DirectMedia Layer) output device. Deprecated and will be removed.
 For monitoring purposes in FFmpeg, pipes and a video player such as ffplay can be used:
@example
 ffmpeg -i INPUT -f nut -c:v rawvideo - | ffplay -
@end example
 "sdl2" can be used as alias for "sdl".
 This output device allows one to show a video stream in an SDL
 window. Only one SDL window is allowed per application, so you can
 have only one instance of this output device in an application.
 To enable this output device you need libsdl installed on your system
 when configuring your build.
 For more information about SDL, check:
@url{http://www.libsdl.org/}
@subsection Options
@table @option
@item window_borderless
 Set SDL window border off.
 Default value is 0 (enable window border).
@item window_enable_quit
 Enable quit action (using window button or keyboard key)
 when non-zero value is provided.
 Default value is 1 (enable quit action).
@item window_fullscreen
 Set fullscreen mode when non-zero value is provided.
 Default value is zero.
@item window_size
 Set the SDL window size, can be a string of the form
@var{width}x@var{height} or a video size abbreviation.
 If not specified it defaults to the size of the input video,
 downscaled according to the aspect ratio.
@item window_title
 Set the SDL window title, if not specified default to the filename
 specified for the output device.
@item window_x
@item window_y
 Set the position of the window on the screen.
@end table
@subsection Interactive commands
 The window created by the device can be controlled through the
 following interactive commands.
@table @key
@item q, ESC
 Quit the device immediately.
@end table
@subsection Examples
 The following command shows the @command{ffmpeg} output is an
 SDL window, forcing its size to the qcif format:
@example
 ffmpeg -i INPUT -c:v rawvideo -pix_fmt yuv420p -window_size qcif -f sdl "SDL output"
@end example
@section sndio
 sndio audio output device.
--- a/doc/platform.texi
+++ b/doc/platform.texi
@ -158,7 +158,7 @@ You will need the following prerequisites:
 To set up a proper environment in MSYS2, you need to run @code{msys_shell.bat} from
 the Visual Studio or Intel Compiler command prompt.
-Place @code{nasm.exe} somewhere in your @code{PATH}.
+Place @code{yasm.exe} somewhere in your @code{PATH}.
 Next, make sure any other headers and libs you want to use, such as zlib, are
 located in a spot that the compiler can see. Do so by modifying the @code{LIB}
@ -301,7 +301,7 @@ These library packages are only available from
@uref{http://sourceware.org/cygwinports/, Cygwin Ports}:
@example
-libSDL-devel, libgsm-devel, libmp3lame-devel,
+yasm, libSDL-devel, libgsm-devel, libmp3lame-devel,
 speex-devel, libtheora-devel, libxvidcore-devel
@end example
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@ -71,7 +71,7 @@ client may also set a user/password for authentication. The default for both
 fields is "guest". Name of virtual host on broker can be set with vhost. The
 default value is "/".
-Multiple subscribers may stream from the broker using the command:
+Muliple subscribers may stream from the broker using the command:
@example
 ffplay amqp://[[user]:[password]@@]hostname[:port][/vhost]
@end example
@ -607,7 +607,7 @@ The resource requested by a client, when the experimental HTTP server is in use.
 The HTTP code returned to the client, when the experimental HTTP server is in use.
@item short_seek_size
-Set the threshold, in bytes, for when a readahead should be preferred over a seek and
+Set the threshold, in bytes, for when a readahead should be prefered over a seek and
 new HTTP request. This is useful, for example, to make sure the same connection
 is used for reading large video packets with small audio packets in between.
@ -1150,15 +1150,10 @@ ffplay "rtmp://myserver/live/mystream live=1"
 Real-time Transport Protocol.
 The required syntax for an RTP URL is:
-@example
+rtp://@var{hostname}[:@var{port}][?@var{option}=@var{val}...]
 rtp://@var{hostname}[:@var{port}][?@var{options}]
@end example
@var{port} specifies the RTP port to use.
@var{options} contains a list of &-separated options of the form
@var{key}=@var{val}.
 The following URL options are supported:
@table @option
@ -1198,15 +1193,16 @@ set to 1) or to a default remote address (if set to 0).
@item localport=@var{n}
 Set the local RTP port to @var{n}.
 This is a deprecated option. Instead, @option{localrtpport} should be
 used.
@item localaddr=@var{addr}
 Local IP address of a network interface used for sending packets or joining
 multicast groups.
@item timeout=@var{n}
 Set timeout (in microseconds) of socket I/O operations to @var{n}.
 This is a deprecated option. Instead, @option{localrtpport} should be
 used.
@end table
 Important notes:
@ -2028,87 +2024,6 @@ To play back a stream from the TLS/SSL server using @command{ffplay}:
 ffplay tls://@var{hostname}:@var{port}
@end example
@section dtls
 Datagram Transport Layer Security (DTLS)
 The required syntax for a DTLS URL is:
@example
 dtls://@var{hostname}:@var{port}
@end example
 DTLS shares most options with TLS, but operates over UDP instead of TCP.
 The following parameters can be set via command line options
 (or in code via @code{AVOption}s):
@table @option
@item ca_file, cafile=@var{filename}
 A file containing certificate authority (CA) root certificates to treat
 as trusted. If the linked TLS library contains a default this might not
 need to be specified for verification to work, but not all libraries and
 setups have defaults built in.
 The file must be in OpenSSL PEM format.
@item tls_verify=@var{1|0}
 If enabled, try to verify the peer that we are communicating with.
 Note, if using OpenSSL, this currently only makes sure that the
 peer certificate is signed by one of the root certificates in the CA
 database, but it does not validate that the certificate actually
 matches the host name we are trying to connect to.
 This is disabled by default since it requires a CA database to be
 provided by the caller in many cases.
@item cert_file, cert=@var{filename}
 A file containing a certificate to use in the handshake with the peer.
 (When operating as server, in listen mode, this is more often required
 by the peer, while client certificates only are mandated in certain
 setups.)
@item key_file, key=@var{filename}
 A file containing the private key for the certificate.
@item cert_pem=@var{string}
 Certificate PEM string
@item key_pem=@var{string}
 Private key PEM string
@item listen=@var{1|0}
 If enabled, listen for connections on the provided port, and assume
 the server role in the handshake instead of the client role.
@item mtu=@var{size}
 Set the Maximum Transmission Unit (MTU) for DTLS packets.
@item use_srtp=@var{1|0}
 Enable the use_srtp DTLS extension.
 This is used in WebRTC applications to establish SRTP encryption keys
 through the DTLS handshake. Default is disabled.
@item external_sock=@var{1|0}
 Use an external socket instead of creating a new one.
 This option only makes sense to pass when interacting with the code via
 API, enabling this from CLI will cause immediate failure.
 Default is disabled.
@end table
 Example command lines:
 To create a DTLS server:
@example
 ffmpeg -listen 1 -i dtls://@var{hostname}:@var{port} @var{output}
@end example
 To create a DTLS client and send data to server:
@example
 ffmpeg -i @var{input} -f @var{format} dtls://@var{hostname}:@var{port}
@end example
@section udp
 User Datagram Protocol.
--- a/doc/scaler.texi
+++ b/doc/scaler.texi
@ -96,9 +96,6 @@ If value is set to @code{1}, indicates source is full range. Default value is
 If value is set to @code{1}, enable full range for destination. Default value
 is @code{0}, which enables limited range.
@item gamma @var{(boolean)}
 If value is set to @code{1}, enable gamma correct scaling. Default value is @code{0}.
@anchor{sws_params}
@item param0, param1
 Set scaling algorithm parameters. The specified values are specific of
--- a/doc/style.min.css
+++ b/doc/style.min.css
--- a/doc/swscale-v2.txt
+++ b/doc/swscale-v2.txt
@ -1,344 +0,0 @@
 New swscale design to change everything (tm)
 ============================================
 SwsGraph
 --------
 The entry point to the new architecture, SwsGraph is what coordinates
 multiple "passes". These can include cascaded scaling passes, error diffusion
 dithering, and so on. Or we could have separate passes for the vertical and
 horizontal scaling. In between each SwsPass lies a fully allocated image buffer.
 Graph passes may have different levels of threading, e.g. we can have a single
 threaded error diffusion pass following a multi-threaded scaling pass.
 SwsGraph is internally recreated whenever the image format, dimensions or
 settings change in any way. sws_scale_frame() is itself just a light-weight
 wrapper that runs ff_sws_graph_create() whenever the format changes, splits
 interlaced images into separate fields, and calls ff_sws_graph_run() on each.
 From the point of view of SwsGraph itself, all inputs are progressive.
 SwsOp / SwsOpList
 -----------------
 This is the newly introduced abstraction layer between the high-level format
 handling logic and the low-level backing implementation. Each SwsOp is designed
 to be as small and atomic as possible, with the possible exception of the
 read / write operations due to their numerous variants.
 The basic idea is to split logic between three major components:
 1. The high-level format "business logic", which generates in a very
   naive way a sequence of operations guaranteed to get you from point A
   to point B. This logic is written with correctness in mind only, and
   ignoring any performance concerns or low-level implementation decisions.
   Semantically, everything is always decoded from the input format to
   normalized (real valued) RGB, and then encoded back to output format.
   This code lives in libswscale/format.c
 2. The optimizer. This is where the "magic" happens, so to speak. The
   optimizer's job is to take the abstract sequence of operations
   produced by the high-level format analysis code and incrementally
   optimize it. Each optimization step is designed to be minute and provably
   lossless, or otherwise guarded behind the BITEXACT flag. This ensures that
   the resulting output is always identical, no matter how many layers of
   optimization we add.
   This code lives in libswscale/ops.c
 3. The compiler. Once we have a sequence of operations as output by the
   optimizer, we "compile" this down to a callable function. This is then
   applied by the dispatch wrapper by striping it over the input image.
   See libswscale/ops_backend.c for the reference backend, or
   libswscale/x86/ops.c for a more complex SIMD example.
 This overall approach has a considerable number of benefits:
 1. It allows us to verify correctness of logic and spot semantic errors at a
   very high level, by simply looking at the sequence of operations (available
   by default at debug / verbose log level), without having to dig through the
   multiple levels of complicated, interwoven format handling code that is
   legacy swscale.
 2. Because most of the brains lives inside the the powerful optimizer, we get
   fast paths "for free" for any suitable format conversion, rather than having
   to enumerate them one by one. SIMD code itself can be written in a very
   general way and does need to be tied to specific pixel formats - subsequent
   low-level implementations can be strung together without much overhead.
 3. We can in the future, with relative ease, compile these operations
   down to SPIR-V (or even LLVM IR) and generate efficient GPU or
   target-machine specific implementations. This also opens the window for
   adding hardware frame support to libswscale, and even transparently using
   GPU acceleration for CPU frames.
 4. Platform-specific SIMD can be reduced down to a comparatively small set of
   optimized routines, while still providing 100% coverage for all possible
   pixel formats and operations. (As of writing, the x86 example backend has
   about 60 unique implementations, of which 20 are trivial swizzles, 10 are
   read/write ops, 10 are pixel type conversions and the remaining 20 are the
   various logic/arithmetic ops).
 5. Backends hide behind a layer of abstraction offering them a considerable
   deal of flexibility in how they want to implement their operations. For
   example, the x86 backend has a dedicated function for compiling compatible
   operations down to a single in-place pshufb instruction.
   Platform specific low level data is self-contained within its own setup()
   function and private data structure, eliminating all reads into SwsContext
   or the possibility of conflicts between platforms.
 6. We can compute an exact reference result for each operation with fixed
   precision (ff_sws_op_apply_q), and use that to e.g. measure the amount of
   error introduced by dithering, or even catch bugs in the reference C
   implementation. (In theory - currently checkasm just compares against C)
 Examples of SwsOp in action
 ---------------------------
 For illustration, here is the sequence of operations currently generated by
 my prototype, for a conversion from RGB24 to YUV444P:
 Unoptimized operation list:
  [ u8 .... -> ....] SWS_OP_READ         : 3 elem(s) packed >> 0
  [ u8 .... -> ....] SWS_OP_SWIZZLE      : 0123
  [ u8 .... -> ....] SWS_OP_RSHIFT       : >> 0
  [ u8 .... -> ....] SWS_OP_CLEAR        : {_ _ _ 0}
  [ u8 .... -> ....] SWS_OP_CONVERT      : u8 -> f32
  [f32 .... -> ....] SWS_OP_LINEAR       : diag3+alpha [[1/255 0 0 0 0] [0 1/255 0 0 0] [0 0 1/255 0 0] [0 0 0 1 1]]
  [f32 .... -> ....] SWS_OP_LINEAR       : matrix3 [[0.299000 0.587000 0.114000 0 0] [-0.168736 -0.331264 1/2 0 0] [1/2 -0.418688 -57/701 0 0] [0 0 0 1 0]]
  [f32 .... -> ....] SWS_OP_LINEAR       : diag3+off3 [[219 0 0 0 16] [0 224 0 0 128] [0 0 224 0 128] [0 0 0 1 0]]
  [f32 .... -> ....] SWS_OP_DITHER       : 16x16 matrix
  [f32 .... -> ....] SWS_OP_MAX          : {0 0 0 0} <= x
  [f32 .... -> ....] SWS_OP_MIN          : x <= {255 255 255 _}
  [f32 .... -> ....] SWS_OP_CONVERT      : f32 -> u8
  [ u8 .... -> ....] SWS_OP_LSHIFT       : << 0
  [ u8 .... -> ....] SWS_OP_SWIZZLE      : 0123
  [ u8 .... -> ....] SWS_OP_WRITE        : 3 elem(s) planar >> 0
 This is optimized into the following sequence:
 Optimized operation list:
  [ u8 XXXX -> +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
  [ u8 ...X -> +++X] SWS_OP_CONVERT      : u8 -> f32
  [f32 ...X -> ...X] SWS_OP_LINEAR       : matrix3+off3 [[0.256788 0.504129 0.097906 0 16] [-0.148223 -0.290993 112/255 0 128] [112/255 -0.367788 -0.071427 0 128] [0 0 0 1 0]]
  [f32 ...X -> ...X] SWS_OP_DITHER       : 16x16 matrix
  [f32 ...X -> +++X] SWS_OP_CONVERT      : f32 -> u8
  [ u8 ...X -> +++X] SWS_OP_WRITE        : 3 elem(s) planar >> 0
    (X = unused, + = exact, 0 = zero)
 The extra metadata on the left of the operation list is just a dump of the
 internal state used by the optimizer during optimization. It keeps track of
 knowledge about the pixel values, such as their value range, whether or not
 they're exact integers, and so on.
 In this example, you can see that the input values are exact (except for
 the alpha channel, which is undefined), until the first SWS_OP_LINEAR
 multiplies them by a noninteger constant. They regain their exact integer
 status only after the (truncating) conversion to U8 in the output step.
 Example of more aggressive optimization
 ---------------------------------------
 Conversion pass for gray -> rgb48:
 Unoptimized operation list:
  [ u8 .... -> ....] SWS_OP_READ         : 1 elem(s) planar >> 0
  [ u8 .... -> ....] SWS_OP_SWIZZLE      : 0123
  [ u8 .... -> ....] SWS_OP_RSHIFT       : >> 0
  [ u8 .... -> ....] SWS_OP_CLEAR        : {_ 0 0 0}
  [ u8 .... -> ....] SWS_OP_CONVERT      : u8 -> f32
  [f32 .... -> ....] SWS_OP_LINEAR       : luma+alpha [[1/255 0 0 0 0] [0 1 0 0 0] [0 0 1 0 0] [0 0 0 1 1]]
  [f32 .... -> ....] SWS_OP_LINEAR       : matrix3 [[1 0 701/500 0 0] [1 -0.344136 -0.714136 0 0] [1 443/250 0 0 0] [0 0 0 1 0]]
  [f32 .... -> ....] SWS_OP_LINEAR       : diag3 [[65535 0 0 0 0] [0 65535 0 0 0] [0 0 65535 0 0] [0 0 0 1 0]]
  [f32 .... -> ....] SWS_OP_MAX          : {0 0 0 0} <= x
  [f32 .... -> ....] SWS_OP_MIN          : x <= {65535 65535 65535 _}
  [f32 .... -> ....] SWS_OP_CONVERT      : f32 -> u16
  [u16 .... -> ....] SWS_OP_LSHIFT       : << 0
  [u16 .... -> ....] SWS_OP_SWIZZLE      : 0123
  [u16 .... -> ....] SWS_OP_WRITE        : 3 elem(s) packed >> 0
 Optimized operation list:
  [ u8 XXXX -> +XXX] SWS_OP_READ         : 1 elem(s) planar >> 0
  [ u8 .XXX -> +XXX] SWS_OP_CONVERT      : u8 -> u16 (expand)
  [u16 .XXX -> +++X] SWS_OP_SWIZZLE      : 0003
  [u16 ...X -> +++X] SWS_OP_WRITE        : 3 elem(s) packed >> 0
    (X = unused, + = exact, 0 = zero)
 Here, the optimizer has managed to eliminate all of the unnecessary linear
 operations on previously zero'd values, turn the resulting column matrix into
 a swizzle operation, avoid the unnecessary dither (and round trip via float)
 because the pixel values are guaranteed to be bit exact, and finally, turns
 the multiplication by 65535 / 255 = 257 into a simple integer expand operation.
 As a final bonus, the x86 backend further optimizes this into a 12-byte shuffle:
  pshufb = {0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1}
 time=208 us, ref=4212 us, speedup=20.236x faster (single thread)
 time=57 us, ref=472 us, speedup=8.160x faster (multi thread)
 Compiler and underlying implementation layer (SwsOpChain)
 ---------------------------------------------------------
 While the backend API is flexible enough to permit more exotic implementations
 (e.g. using JIT code generation), we establish a common set of helpers for use
 in "traditional" SIMD implementations.
 The basic idea is to have one "kernel" (or implementation) per operation,
 and then just chain a list of these kernels together as separate function
 calls. For best performance, we want to keep data in vector registers in
 between function calls using a custom calling convention, thus avoiding any
 unnecessary memory accesses. Additionally, we want the per-kernel overhead to
 be as low as possible, with each kernel ideally just jumping directly into
 the next kernel.
 As a result, we arrive at a design where we first divide the image into small
 chunks, or "blocks", and then dispatch the "chain" of kernels on each chunk in
 sequence. Each kernel processes a fixed number of pixels, with the overall
 entry point taking care of looping. Remaining pixels (the "tail") are handled
 generically by the backend-invariant dispatch code (located in ops.c), using a
 partial memcpy into a suitably sized temporary buffer.
 To minimize the per-kernel function call overhead, we use a "continuation
 passing style" for chaining kernels. Each operation computes its result and
 then directly calls the next operation in the sequence, with the appropriate
 internal function signature.
 The C reference backend reads data into the stack and then passes the array
 pointers to the next continuation as regular function arguments:
  void process(GlobalContext *ctx, OpContext *op,
               block_t x, block_t y, block_t z, block_t w)
  {
      for (int i = 0; i < SWS_BLOCK_SIZE; i++)
          // do something with x[i], y[i], z[i], w[i]
      op->next(ctx, &op[1], x, y, z, w);
  }
 With type conversions pushing the new data onto the stack as well:
  void convert8to16(GlobalContext *ctx, OpContext *op,
                    block_t x, block_t y, block_t z, block_t w)
  {
        /* Pseudo-code */
        u16block_t x16 = (u16block_t) x;
        u16block_t y16 = (u16block_t) y;
        u16block_t z16 = (u16block_t) z;
        u16block_t w16 = (u16block_t) w;
        op->next(ctx, &op[1], x16, y16, z16, w16);
  }
 By contrast, the x86 backend always keeps the X/Y/Z/W values pinned in specific
 vector registers (ymm0-ymm3 for the lower half, and ymm4-ymm7 for the second
 half).
 Each kernel additionally has access to a 32 byte per-op context storing the
 pointer to the next kernel plus 16 bytes of arbitrary private data. This is
 used during construction of the function chain to place things like small
 constants.
 In assembly, the per-kernel overhead looks like this:
  load $tmp, $arg1
  ...
  add $arg1, 32
  jump $tmp
 This design gives vastly better performance than the alternative of returning
 out to a central loop or "trampoline". This is partly because the order of
 kernels within a chain is always the same, so the branch predictor can easily
 remember the target address of each "jump" instruction.
 The only way to realistically improve on this design would be to directly
 stitch the kernel body together using runtime code generation.
 Future considerations and limitations
 -------------------------------------
 My current prototype has a number of severe limitations and opportunities
 for improvements:
 1. It does not handle scaling at all. I am not yet entirely sure on how I want
   to handle scaling; this includes handling of subsampled content. I have a
   number of vague ideas in my head, but nothing where I can say with certainty
   that it will work out well.
   It's possible that we won't come up with a perfect solution here, and will
   need to decide on which set of compromises we are comfortable accepting:
   1. Do we need the ability to scale YUV -> YUV by handling luma and chroma
      independently? When downscaling 100x100 4:2:0 to 50x50 4:4:4, should we
      support the option of reusing the chroma plane directly (even though
      this would introduce a subpixel shift for typical chroma siting)?
   Looking towards zimg, I am also thinking that we probably also want to do
   scaling on floating point values, since this is best for both performance
   and accuracy, especially given that we need to go up to 32-bit intermediates
   during scaling anyway.
   So far, the most promising approach seems to be to handle subsampled
   input/output as a dedicated read/write operation type; perhaps even with a
   fixed/static subsampling kernel. To avoid compromising on performance when
   chroma resampling is not necessary, the optimizer could then relax the
   pipeline to use non-interpolating read/writes when all intermediate
   operations are component-independent.
 2. Since each operation is conceptually defined on 4-component pixels, we end
   up defining a lot of variants of each implementation for each possible
   *subset*. For example, we have four different implementations for
   SWS_OP_SCALE in my current templates:
    - op_scale_1000
    - op_scale_1001
    - op_scale_1110
    - op_scale_1111
   This reflects the four different arrangements of pixel components that are
   typically present (or absent). While best for performance, it does turn into
   a bit of a chore when implementing these kernels.
   The only real alternative would be to either branch inside the kernel (bad),
   or to use separate kernels for each individual component and chain them all
   together. I have not yet tested whether the latter approach would be faster
   after the latest round of refactors to the kernel glue code.
 3. I do not yet have any support for LUTs. But when I add them, something we
   could do is have the optimized pass automatically "promote" a sequence of
   operations to LUTs. For example, any sequence that looks like:
   1. [u8] SWS_OP_CONVERT -> X
   2. [X] ... // only per-component operations
   4. [X] SWS_OP_CONVERT -> Y
   3. [Y] SWS_OP_WRITE
   could be replaced by a LUT with 256 entries. This is especially important
   for anything involving packed 8-bit input (e.g. rgb8, rgb4_byte).
   We also definitely want to hook this up to the existing CMS code for
   transformations between different primaries.
 4. Because we rely on AVRational math to generate the coefficients for
   operations, we need to be able to represent all pixel values as an
   AVRational. However, this presents a challenge for 32-bit formats (e.g.
   GRAY32, RGBA128), because their size exceeds INT_MAX, which is the maximum
   value representable by an AVRational.
   It's possible we may want to introduce an AVRational64 for this, or
   perhaps more flexibly, extend AVRational to an AVFloating type which is
   represented as { AVRational n; int exp; }, representing n/d * 2^exp. This
   would preserve our ability to represent all pixel values exactly, while
   opening up the range arbitrarily.
 5. Is there ever a situation where the use of floats introduces the risk of
   non bit-exact output? For this reason, and possible performance advantages,
   we may want to explore the use of a fixed-point 16 bit path as an alternative
   to the floating point math.
   So far, I have managed to avoid any bit exactness issues inside the x86
   backend by ensuring that the order of linear operations is identical
   between the C backend and the x86 backend, but this may not be practical
   to guarantee on all backends. The x86 float code is also dramatically
   faster than the old fixed point code, so I'm tentatively optimistic about
   the lack of a need for a fixed point path.
--- a/doc/t2h.pm
+++ b/doc/t2h.pm
@ -54,24 +54,12 @@ sub get_formatting_function($$) {
 }
 # determine texinfo version
-my $package_version = ff_get_conf('PACKAGE_VERSION');
+my $program_version_num = version->declare(ff_get_conf('PACKAGE_VERSION'))->numify;
 $package_version =~ s/\+dev$//;
 my $program_version_num = version->declare($package_version)->numify;
 my $program_version_6_8 = $program_version_num >= 6.008000;
 # no navigation elements
 ff_set_from_init_file('HEADERS', 0);
 my %sectioning_commands = %Texinfo::Common::sectioning_commands;
 if (scalar(keys(%sectioning_commands)) == 0) {
  %sectioning_commands = %Texinfo::Commands::sectioning_heading_commands;
 }
 my %root_commands = %Texinfo::Common::root_commands;
 if (scalar(keys(%root_commands)) == 0) {
  %root_commands = %Texinfo::Commands::root_commands;
 }
 sub ffmpeg_heading_command($$$$$)
 {
    my $self = shift;
@ -89,9 +77,6 @@ sub ffmpeg_heading_command($$$$$)
        return $result;
    }
    # no need to set it as the $element_id is output unconditionally
    my $heading_id;
    my $element_id = $self->command_id($command);
    $result .= "<a name=\"$element_id\"></a>\n"
        if (defined($element_id) and $element_id ne '');
@ -99,40 +84,24 @@ sub ffmpeg_heading_command($$$$$)
    print STDERR "Process $command "
        .Texinfo::Structuring::_print_root_command_texi($command)."\n"
            if ($self->get_conf('DEBUG'));
-    my $output_unit;
+    my $element;
-    if ($root_commands{$command->{'cmdname'}}) {
+    if ($Texinfo::Common::root_commands{$command->{'cmdname'}}
-        if ($command->{'associated_unit'}) {
+        and $command->{'parent'}
-          $output_unit = $command->{'associated_unit'};
+        and $command->{'parent'}->{'type'}
-        } elsif ($command->{'structure'}
+        and $command->{'parent'}->{'type'} eq 'element') {
-                 and $command->{'structure'}->{'associated_unit'}) {
+        $element = $command->{'parent'};
          $output_unit = $command->{'structure'}->{'associated_unit'};
        } elsif ($command->{'parent'}
                 and $command->{'parent'}->{'type'}
                 and $command->{'parent'}->{'type'} eq 'element') {
          $output_unit = $command->{'parent'};
        }
    }
-
+    if ($element) {
    if ($output_unit) {
        $result .= &{get_formatting_function($self, 'format_element_header')}($self, $cmdname,
-                                                       $command, $output_unit);
+                                                       $command, $element);
    }
    my $heading_level;
    # node is used as heading if there is nothing else.
    if ($cmdname eq 'node') {
-        if (!$output_unit or
+        if (!$element or (!$element->{'extra'}->{'section'}
-            (((!$output_unit->{'extra'}->{'section'}
+            and $element->{'extra'}->{'node'}
-              and $output_unit->{'extra'}->{'node'}
+            and $element->{'extra'}->{'node'} eq $command
              and $output_unit->{'extra'}->{'node'} eq $command)
             or
             ((($output_unit->{'extra'}->{'unit_command'}
                and $output_unit->{'extra'}->{'unit_command'} eq $command)
               or
               ($output_unit->{'unit_command'}
                and $output_unit->{'unit_command'} eq $command))
              and $command->{'extra'}
              and not $command->{'extra'}->{'associated_section'}))
             # bogus node may not have been normalized
            and defined($command->{'extra'}->{'normalized'}))) {
            if ($command->{'extra'}->{'normalized'} eq 'Top') {
@ -142,15 +111,7 @@ sub ffmpeg_heading_command($$$$$)
            }
        }
    } else {
-        if (defined($command->{'extra'})
+        $heading_level = $command->{'level'};
            and defined($command->{'extra'}->{'section_level'})) {
          $heading_level = $command->{'extra'}->{'section_level'};
        } elsif ($command->{'structure'}
                 and defined($command->{'structure'}->{'section_level'})) {
          $heading_level = $command->{'structure'}->{'section_level'};
        } else {
          $heading_level = $command->{'level'};
        }
    }
    my $heading = $self->command_text($command);
@ -158,8 +119,8 @@ sub ffmpeg_heading_command($$$$$)
    # if there is an error in the node.
    if (defined($heading) and $heading ne '' and defined($heading_level)) {
-        if ($root_commands{$cmdname}
+        if ($Texinfo::Common::root_commands{$cmdname}
-            and $sectioning_commands{$cmdname}) {
+            and $Texinfo::Common::sectioning_commands{$cmdname}) {
            my $content_href = $self->command_contents_href($command, 'contents',
                                                            $self->{'current_filename'});
            if ($content_href) {
@ -179,13 +140,7 @@ sub ffmpeg_heading_command($$$$$)
            }
        }
-        my $in_preformatted;
+        if ($self->in_preformatted()) {
        if ($program_version_num >= 7.001090) {
          $in_preformatted = $self->in_preformatted_context();
        } else {
          $in_preformatted = $self->in_preformatted();
        }
        if ($in_preformatted) {
            $result .= $heading."\n";
        } else {
            # if the level was changed, set the command name right
@ -194,25 +149,21 @@ sub ffmpeg_heading_command($$$$$)
                $cmdname
                    = $Texinfo::Common::level_to_structuring_command{$cmdname}->[$heading_level];
            }
            # format_heading_text expects an array of headings for texinfo >= 7.0
            if ($program_version_num >= 7.000000) {
-                $result .= &{get_formatting_function($self,'format_heading_text')}($self,
+                $heading = [$heading];
-                     $cmdname, [$cmdname], $heading,
+            }
-                     $heading_level +$self->get_conf('CHAPTER_HEADER_LEVEL') -1,
+            $result .= &{get_formatting_function($self,'format_heading_text')}(
                     $heading_id, $command);
            } else {
              $result .= &{get_formatting_function($self,'format_heading_text')}(
                        $self, $cmdname, $heading,
                        $heading_level +
                        $self->get_conf('CHAPTER_HEADER_LEVEL') - 1, $command);
            }
        }
    }
    $result .= $content if (defined($content));
    return $result;
 }
-foreach my $command (keys(%sectioning_commands), 'node') {
+foreach my $command (keys(%Texinfo::Common::sectioning_commands), 'node') {
    texinfo_register_command_formatting($command, \&ffmpeg_heading_command);
 }
@ -237,56 +188,28 @@ sub ffmpeg_begin_file($$$)
    my $filename = shift;
    my $element = shift;
-    my ($element_command, $node_command, $command_for_title);
+    my $command;
-    if ($element) {
+    if ($element and $self->get_conf('SPLIT')) {
-        if ($element->{'unit_command'}) {
+        $command = $self->element_command($element);
          $element_command = $element->{'unit_command'};
        } elsif ($self->can('tree_unit_element_command')) {
          $element_command = $self->tree_unit_element_command($element);
        } elsif ($self->can('tree_unit_element_command')) {
          $element_command = $self->element_command($element);
        }
       $node_command = $element_command;
       if ($element_command and $element_command->{'cmdname'}
           and $element_command->{'cmdname'} ne 'node'
           and $element_command->{'extra'}
           and $element_command->{'extra'}->{'associated_node'}) {
         $node_command = $element_command->{'extra'}->{'associated_node'};
       }
       $command_for_title = $element_command if ($self->get_conf('SPLIT'));
    }
-    my ($title, $description, $keywords, $encoding, $date, $css_lines, $doctype,
+    my ($title, $description, $encoding, $date, $css_lines,
-        $root_html_element_attributes, $body_attributes, $copying_comment,
+        $doctype, $bodytext, $copying_comment, $after_body_open,
-        $after_body_open, $extra_head, $program_and_version, $program_homepage,
+        $extra_head, $program_and_version, $program_homepage,
        $program, $generator);
-    if ($program_version_num >= 7.001090) {
+    if ($program_version_num >= 7.000000) {
-        ($title, $description, $keywords, $encoding, $date, $css_lines, $doctype,
+        ($title, $description, $encoding, $date, $css_lines,
-         $root_html_element_attributes, $body_attributes, $copying_comment,
+         $doctype, $bodytext, $copying_comment, $after_body_open,
         $after_body_open, $extra_head, $program_and_version, $program_homepage,
         $program, $generator) = $self->_file_header_information($command_for_title,
                                                                 $filename);
    } elsif ($program_version_num >= 7.000000) {
        ($title, $description, $encoding, $date, $css_lines, $doctype,
         $root_html_element_attributes, $copying_comment, $after_body_open,
         $extra_head, $program_and_version, $program_homepage,
-         $program, $generator) = $self->_file_header_information($command_for_title,
+         $program, $generator) = $self->_file_header_information($command);
                                                                 $filename);
    } else {
        ($title, $description, $encoding, $date, $css_lines,
-         $doctype, $root_html_element_attributes, $copying_comment,
+         $doctype, $bodytext, $copying_comment, $after_body_open,
-         $after_body_open, $extra_head, $program_and_version, $program_homepage,
+         $extra_head, $program_and_version, $program_homepage,
-         $program, $generator) = $self->_file_header_informations($command_for_title);
+         $program, $generator) = $self->_file_header_informations($command);
    }
-    my $links;
+    my $links = $self->_get_links ($filename, $element);
    if ($program_version_num >= 7.000000) {
      $links = $self->_get_links($filename, $element, $node_command);
    } else {
      $links = $self->_get_links ($filename, $element);
    }
    my $head1 = $ENV{"FFMPEG_HEADER1"} || <<EOT;
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
@ -329,25 +252,13 @@ sub ffmpeg_program_string($)
  if (defined($self->get_conf('PROGRAM'))
      and $self->get_conf('PROGRAM') ne ''
      and defined($self->get_conf('PACKAGE_URL'))) {
-    if ($program_version_num >= 7.001090) {
+    return $self->convert_tree(
     return $self->convert_tree(
      $self->cdt('This document was generated using @uref{{program_homepage}, @emph{{program}}}.',
         { 'program_homepage' => {'text' => $self->get_conf('PACKAGE_URL')},
           'program' => {'text' => $self->get_conf('PROGRAM') }}));
    } else {
     return $self->convert_tree(
      $self->gdt('This document was generated using @uref{{program_homepage}, @emph{{program}}}.',
-         { 'program_homepage' => {'text' => $self->get_conf('PACKAGE_URL')},
+         { 'program_homepage' => $self->get_conf('PACKAGE_URL'),
-           'program' => {'text' => $self->get_conf('PROGRAM') }}));
+           'program' => $self->get_conf('PROGRAM') }));
    }
  } else {
-    if ($program_version_num >= 7.001090) {
+    return $self->convert_tree(
-      return $self->convert_tree(
+      $self->gdt('This document was generated automatically.'));
        $self->cdt('This document was generated automatically.'));
    } else {
      return $self->convert_tree(
        $self->gdt('This document was generated automatically.'));
    }
  }
 }
 if ($program_version_6_8) {
--- a/doc/texi2pod.pl
+++ b/doc/texi2pod.pl
--- a/doc/texidep.pl
+++ b/doc/texidep.pl
--- a/doc/undefined.txt
+++ b/doc/undefined.txt
@ -44,3 +44,4 @@ a+b*c;
 here the reader knows that a,b,c are meant to be signed integers but for C
 standard compliance / to avoid undefined behavior they are stored in unsigned
 ints.
--- a/doc/utils.texi
+++ b/doc/utils.texi
@ -731,12 +731,8 @@ FL+FR+FC+LFE+BL+BR+SL+SR+TFL+TFR+TBL+TBR
 FL+FR+FC+LFE+BL+BR+SL+SR+TFL+TFR+TBC+LFE2
@item 9.1.4
 FL+FR+FC+LFE+BL+BR+FLC+FRC+SL+SR+TFL+TFR+TBL+TBR
@item 9.1.6
 FL+FR+FC+LFE+BL+BR+FLC+FRC+SL+SR+TFL+TFR+TBL+TBR+TSL+TSR
@item hexadecagonal
 FL+FR+FC+BL+BR+BC+SL+SR+WL+WR+TBL+TBR+TBC+TFC+TFL+TFR
@item binaural
 BIL+BIR
@item downmix
 DL+DR
@item 22.2
--- a/ffbuild/arch.mak
+++ b/ffbuild/arch.mak
@ -3,8 +3,6 @@ OBJS-$(HAVE_ARMV6)   += $(ARMV6-OBJS)   $(ARMV6-OBJS-yes)
 OBJS-$(HAVE_ARMV8)   += $(ARMV8-OBJS)   $(ARMV8-OBJS-yes)
 OBJS-$(HAVE_VFP)     += $(VFP-OBJS)     $(VFP-OBJS-yes)
 OBJS-$(HAVE_NEON)    += $(NEON-OBJS)    $(NEON-OBJS-yes)
 OBJS-$(HAVE_SVE)     += $(SVE-OBJS)     $(SVE-OBJS-yes)
 OBJS-$(HAVE_SVE2)    += $(SVE2-OBJS)    $(SVE2-OBJS-yes)
 OBJS-$(HAVE_MIPSFPU)   += $(MIPSFPU-OBJS)    $(MIPSFPU-OBJS-yes)
 OBJS-$(HAVE_MIPSDSP)   += $(MIPSDSP-OBJS)    $(MIPSDSP-OBJS-yes)
@ -21,7 +19,5 @@ OBJS-$(HAVE_RV)      += $(RV-OBJS)      $(RV-OBJS-yes)
 OBJS-$(HAVE_RVV)     += $(RVV-OBJS)     $(RVV-OBJS-yes)
 OBJS-$(HAVE_RV_ZVBB) += $(RVVB-OBJS)    $(RVVB-OBJS-yes)
 OBJS-$(HAVE_SIMD128) += $(SIMD128-OBJS) $(SIMD128-OBJS-yes)
 OBJS-$(HAVE_MMX)     += $(MMX-OBJS)     $(MMX-OBJS-yes)
 OBJS-$(HAVE_X86ASM)  += $(X86ASM-OBJS)  $(X86ASM-OBJS-yes)
--- a/ffbuild/bin2c.c
+++ b/ffbuild/bin2c.c
@ -38,10 +38,8 @@ int main(int argc, char **argv)
        return -1;
    output = fopen(argv[2], "wb");
-    if (!output) {
+    if (!output)
        fclose(input);
        return -1;
    }
    if (argc == 4) {
        name = argv[3];
@ -69,10 +67,8 @@ int main(int argc, char **argv)
    fclose(output);
-    if (ferror(input) || !feof(input)) {
+    if (ferror(input) || !feof(input))
        fclose(input);
        return -1;
    }
    fclose(input);
--- a/ffbuild/common.mak
+++ b/ffbuild/common.mak
@ -18,7 +18,7 @@ BIN2C = $(BIN2CEXE)
 ifndef V
 Q      = @
 ECHO   = printf "$(1)\t%s\n" $(2)
-BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD STRIP CP WINDRES NVCC BIN2C METALCC METALLIB
+BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD STRIP CP WINDRES NVCC BIN2C
 SILENT = DEPCC DEPHOSTCC DEPAS DEPX86ASM RANLIB RM
 MSG    = $@
@ -115,12 +115,6 @@ COMPILE_LASX = $(call COMPILE,CC,LASXFLAGS)
 $(BIN2CEXE): ffbuild/bin2c_host.o
 	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTEXTRALIBS)
 RUN_BIN2C = $(BIN2C) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) $@ $(subst .,_,$(basename $(notdir $@)))
 RUN_GZIP  = $(M)gzip -nc9 $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) >$@
 RUN_MINIFY = $(M)sed 's!/\\*.*\\*/!!g' $< | tr '\n' ' ' | tr -s ' ' | sed 's/^ //; s/ $$//' > $@
 %.gz: TAG = GZIP
 %.min: TAG = MINIFY
 %.metal.air: %.metal
 	$(METALCC) $< -o $@
@ -128,46 +122,21 @@ RUN_MINIFY = $(M)sed 's!/\\*.*\\*/!!g' $< | tr '\n' ' ' | tr -s ' ' | sed 's/^ /
 	$(METALLIB) --split-module-without-linking $< -o $@
 %.metallib.c: %.metallib $(BIN2CEXE)
-	$(RUN_BIN2C)
+	$(BIN2C) $< $@ $(subst .,_,$(basename $(notdir $@)))
 %.ptx: %.cu $(SRC_PATH)/compat/cuda/cuda_runtime.h
 	$(COMPILE_NVCC)
 ifdef CONFIG_PTX_COMPRESSION
 %.ptx.gz: TAG = GZIP
 %.ptx.gz: %.ptx
-	$(RUN_GZIP)
+	$(M)gzip -nc9 $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) >$@
 %.ptx.c: %.ptx.gz $(BIN2CEXE)
-	$(RUN_BIN2C)
+	$(BIN2C) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) $@ $(subst .,_,$(basename $(notdir $@)))
 else
 %.ptx.c: %.ptx $(BIN2CEXE)
-	$(RUN_BIN2C)
+	$(BIN2C) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) $@ $(subst .,_,$(basename $(notdir $@)))
 endif
 %.css.min: %.css
 	$(RUN_MINIFY)
 ifdef CONFIG_RESOURCE_COMPRESSION
 %.css.min.gz: %.css.min
 	$(RUN_GZIP)
 %.css.c: %.css.min.gz $(BIN2CEXE)
 	$(RUN_BIN2C)
 %.html.gz: %.html
 	$(RUN_GZIP)
 %.html.c: %.html.gz $(BIN2CEXE)
 	$(RUN_BIN2C)
 else   # NO COMPRESSION
 %.css.c: %.css.min $(BIN2CEXE)
 	$(RUN_BIN2C)
 %.html.c: %.html $(BIN2CEXE)
 	$(RUN_BIN2C)
 endif
 clean::
@ -190,6 +159,7 @@ endif
 include $(SRC_PATH)/ffbuild/arch.mak
 OBJS      += $(OBJS-yes)
 SLIBOBJS  += $(SLIBOBJS-yes)
 SHLIBOBJS += $(SHLIBOBJS-yes)
 STLIBOBJS += $(STLIBOBJS-yes)
 FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
@ -199,6 +169,7 @@ LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
 FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(foreach lib,EXTRALIBS-$(NAME) $(FFLIBS:%=EXTRALIBS-%),$($(lib))) $(EXTRALIBS)
 OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
 SLIBOBJS  := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
 SHLIBOBJS := $(sort $(SHLIBOBJS:%=$(SUBDIR)%))
 STLIBOBJS := $(sort $(STLIBOBJS:%=$(SUBDIR)%))
 TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)tests/%) $(TESTPROGS:%=$(SUBDIR)tests/%.o)
@ -223,6 +194,7 @@ PTXOBJS      = $(filter %.ptx.o,$(OBJS))
 $(HOBJS):     CCFLAGS += $(CFLAGS_HEADERS)
 checkheaders: $(HOBJS)
 .SECONDARY:   $(HOBJS:.o=.c) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=.gz) $(PTXOBJS:.o=)
 alltools: $(TOOLS)
 $(HOSTOBJS): %.o: %.c
@ -234,14 +206,15 @@ $(HOSTPROGS): %$(HOSTEXESUF): %.o
 $(OBJS):     | $(sort $(dir $(OBJS)))
 $(HOBJS):    | $(sort $(dir $(HOBJS)))
 $(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
 $(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
 $(SHLIBOBJS): | $(sort $(dir $(SHLIBOBJS)))
 $(STLIBOBJS): | $(sort $(dir $(STLIBOBJS)))
 $(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
 $(TOOLOBJS): | tools
-OUTDIRS := $(OUTDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SHLIBOBJS) $(STLIBOBJS) $(TESTOBJS))
+OUTDIRS := $(OUTDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(SHLIBOBJS) $(STLIBOBJS) $(TESTOBJS))
-CLEANSUFFIXES     = *.d *.gcda *.gcno *.h.c *.ho *.map *.o *.objs *.pc *.ptx *.ptx.gz *.ptx.c *.ver *.version *.html.gz *.html.c *.css.min.gz *.css.min *.css.c  *$(DEFAULT_X86ASMD).asm *~ *.ilk *.pdb
+CLEANSUFFIXES     = *.d *.gcda *.gcno *.h.c *.ho *.map *.o *.pc *.ptx *.ptx.gz *.ptx.c *.ver *.version *$(DEFAULT_X86ASMD).asm *~ *.ilk *.pdb
 LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
 define RULES
@ -251,4 +224,4 @@ endef
 $(eval $(RULES))
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SHLIBOBJS:.o=.d) $(STLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_X86ASMD).d)
+-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SHLIBOBJS:.o=.d) $(STLIBOBJS:.o=.d) $(SLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_X86ASMD).d)
--- a/ffbuild/library.mak
+++ b/ffbuild/library.mak
@ -26,7 +26,7 @@ ifdef CONFIG_SHARED
 # for purely shared builds.
 # Test programs are always statically linked against their library
 # to be able to access their library's internals, even with shared builds.
-# Yet linking against dependent libraries still uses dynamic linking.
+# Yet linking against dependend libraries still uses dynamic linking.
 # This means that we are in the scenario described above.
 # In case only static libs are used, the linker will only use
 # one of these copies; this depends on the duplicated object files
@ -35,14 +35,8 @@ OBJS += $(SHLIBOBJS)
 endif
 $(SUBDIR)$(LIBNAME): $(OBJS) $(STLIBOBJS)
 	$(RM) $@
 ifeq ($(RESPONSE_FILES),yes)
 	$(Q)echo $^ > $@.objs
 	$(AR) $(ARFLAGS) $(AR_O) @$@.objs
 else
 	$(AR) $(ARFLAGS) $(AR_O) $^
 endif
 	$(RANLIB) $@
 	-$(RM) $@.objs
 install-headers: install-lib$(NAME)-headers install-lib$(NAME)-pkgconfig
@ -70,16 +64,10 @@ $(SUBDIR)lib$(NAME).ver: $(SUBDIR)lib$(NAME).v $(OBJS)
 $(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
 	$(Q)cd ./$(SUBDIR) && $(LN_S) $(SLIBNAME_WITH_MAJOR) $(SLIBNAME)
-$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SUBDIR)lib$(NAME).ver
+$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SLIBOBJS) $(SUBDIR)lib$(NAME).ver
 	$(SLIB_CREATE_DEF_CMD)
 ifeq ($(RESPONSE_FILES),yes)
 	$(Q)echo $$(filter %.o,$$^) > $$@.objs
 	$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) @$$@.objs $(FFEXTRALIBS)
 else
 	$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) $$(filter %.o,$$^) $(FFEXTRALIBS)
 endif
 	$(SLIB_EXTRA_CMD)
 	-$(RM) $$@.objs
 ifdef SUBDIR
 $(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(DEP_LIBS)
--- a/ffbuild/pkgconfig_generate.sh
+++ b/ffbuild/pkgconfig_generate.sh
@ -50,7 +50,7 @@ includedir=${source_path}
 prefix=
 exec_prefix=
 libdir=\${pcfiledir}/../../../$name
-includedir=${includedir}
+includedir=${source_path}
 Name: $fullname
 Description: $comment
--- a/fftools/Makefile
+++ b/fftools/Makefile
@ -9,8 +9,6 @@ AVBASENAMES  = ffmpeg ffplay ffprobe
 ALLAVPROGS   = $(AVBASENAMES:%=%$(PROGSSUF)$(EXESUF))
 ALLAVPROGS_G = $(AVBASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
 include $(SRC_PATH)/fftools/resources/Makefile
 OBJS-ffmpeg +=                  \
    fftools/ffmpeg_dec.o        \
    fftools/ffmpeg_demux.o      \
@ -21,35 +19,9 @@ OBJS-ffmpeg +=                  \
    fftools/ffmpeg_mux_init.o   \
    fftools/ffmpeg_opt.o        \
    fftools/ffmpeg_sched.o      \
-    fftools/graph/graphprint.o        \
+    fftools/objpool.o           \
    fftools/sync_queue.o        \
    fftools/thread_queue.o      \
    fftools/textformat/avtextformat.o \
    fftools/textformat/tf_compact.o   \
    fftools/textformat/tf_default.o   \
    fftools/textformat/tf_flat.o      \
    fftools/textformat/tf_ini.o       \
    fftools/textformat/tf_json.o      \
    fftools/textformat/tf_mermaid.o   \
    fftools/textformat/tf_xml.o       \
    fftools/textformat/tw_avio.o      \
    fftools/textformat/tw_buffer.o    \
    fftools/textformat/tw_stdout.o    \
    $(OBJS-resman)                    \
    $(RESOBJS)                        \
 OBJS-ffprobe +=                       \
    fftools/textformat/avtextformat.o \
    fftools/textformat/tf_compact.o   \
    fftools/textformat/tf_default.o   \
    fftools/textformat/tf_flat.o      \
    fftools/textformat/tf_ini.o       \
    fftools/textformat/tf_json.o      \
    fftools/textformat/tf_mermaid.o   \
    fftools/textformat/tf_xml.o       \
    fftools/textformat/tw_avio.o      \
    fftools/textformat/tw_buffer.o    \
    fftools/textformat/tw_stdout.o    \
 OBJS-ffplay += fftools/ffplay_renderer.o
@ -59,7 +31,7 @@ ifdef HAVE_GNU_WINDRES
 OBJS-$(1) += fftools/fftoolsres.o
 endif
 $(1)$(PROGSSUF)_g$(EXESUF): $$(OBJS-$(1))
-$$(OBJS-$(1)): | fftools fftools/textformat fftools/resources fftools/graph
+$$(OBJS-$(1)): | fftools
 $$(OBJS-$(1)): CFLAGS  += $(CFLAGS-$(1))
 $(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
 $(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(EXTRALIBS-$(1))
@ -72,9 +44,6 @@ all: $(AVPROGS)
 fftools/ffprobe.o fftools/cmdutils.o: libavutil/ffversion.h | fftools
 OUTDIRS += fftools
 OUTDIRS += fftools/textformat
 OUTDIRS += fftools/resources
 OUTDIRS += fftools/graph
 ifdef AVPROGS
 install: install-progs install-data
@ -93,4 +62,4 @@ uninstall-progs:
 	$(RM) $(addprefix "$(BINDIR)/", $(ALLAVPROGS))
 clean::
-	$(RM) $(ALLAVPROGS) $(ALLAVPROGS_G) $(CLEANSUFFIXES:%=fftools/%) $(CLEANSUFFIXES:%=fftools/graph/%) $(CLEANSUFFIXES:%=fftools/textformat/%)
+	$(RM) $(ALLAVPROGS) $(ALLAVPROGS_G) $(CLEANSUFFIXES:%=fftools/%)
--- a/fftools/cmdutils.c
+++ b/fftools/cmdutils.c
@ -255,10 +255,9 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt,
    if (*opt == '/') {
        opt++;
-        if (!opt_has_arg(po)) {
+        if (po->type == OPT_TYPE_BOOL) {
            av_log(NULL, AV_LOG_FATAL,
-                   "Requested to load an argument from file for an option '%s'"
+                   "Requested to load an argument from file for a bool option '%s'\n",
                   " which does not take an argument\n",
                   po->name);
            return AVERROR(EINVAL);
        }
@ -353,11 +352,9 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt,
        ret = po->u.func_arg(optctx, opt, arg);
        if (ret < 0) {
-            if ((strcmp(opt, "init_hw_device") != 0) || (strcmp(arg, "list") != 0)) {
+            av_log(NULL, AV_LOG_ERROR,
-                av_log(NULL, AV_LOG_ERROR,
+                   "Failed to set value '%s' for option '%s': %s\n",
-                       "Failed to set value '%s' for option '%s': %s\n",
+                   arg, opt, av_err2str(ret));
                       arg, opt, av_err2str(ret));
            }
            goto finish;
        }
    }
@ -495,9 +492,8 @@ int locate_option(int argc, char **argv, const OptionDef *options,
    for (i = 1; i < argc; i++) {
        const char *cur_opt = argv[i];
-        if (!(cur_opt[0] == '-' && cur_opt[1]))
+        if (*cur_opt++ != '-')
            continue;
        cur_opt++;
        po = find_option(options, cur_opt);
        if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
@ -555,12 +551,11 @@ static void check_options(const OptionDef *po)
 void parse_loglevel(int argc, char **argv, const OptionDef *options)
 {
-    int idx;
+    int idx = locate_option(argc, argv, options, "loglevel");
    char *env;
    check_options(options);
    idx = locate_option(argc, argv, options, "loglevel");
    if (!idx)
        idx = locate_option(argc, argv, options, "v");
    if (idx && argv[idx + 1])
@ -1471,12 +1466,9 @@ void *allocate_array_elem(void *ptr, size_t elem_size, int *nb_elems)
 {
    void *new_elem;
-    new_elem = av_mallocz(elem_size);
+    if (!(new_elem = av_mallocz(elem_size)) ||
-    if (!new_elem)
+        av_dynarray_add_nofree(ptr, nb_elems, new_elem) < 0)
        return NULL;
    if (av_dynarray_add_nofree(ptr, nb_elems, new_elem) < 0)
        av_freep(&new_elem);
    return new_elem;
 }
--- a/fftools/cmdutils.h
+++ b/fftools/cmdutils.h
@ -319,7 +319,7 @@ typedef struct Option {
 } Option;
 typedef struct OptionGroupDef {
-    /** group name */
+    /**< group name */
    const char *name;
    /**
     * Option to be used as group separator. Can be NULL for groups which
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@ -81,7 +81,6 @@
 #include "ffmpeg.h"
 #include "ffmpeg_sched.h"
 #include "ffmpeg_utils.h"
 #include "graph/graphprint.h"
 const char program_name[] = "ffmpeg";
 const int program_birth_year = 2000;
@ -309,9 +308,6 @@ const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 static void ffmpeg_cleanup(int ret)
 {
    if ((print_graphs || print_graphs_file) && nb_output_files > 0)
        print_filtergraphs(filtergraphs, nb_filtergraphs, input_files, nb_input_files, output_files, nb_output_files);
    if (do_benchmark) {
        int64_t maxrss = getmaxrss() / 1024;
        av_log(NULL, AV_LOG_INFO, "bench: maxrss=%"PRId64"KiB\n", maxrss);
@ -344,9 +340,6 @@ static void ffmpeg_cleanup(int ret)
    av_freep(&filter_nbthreads);
    av_freep(&print_graphs_file);
    av_freep(&print_graphs_format);
    av_freep(&input_files);
    av_freep(&output_files);
@ -562,7 +555,7 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
    static int64_t last_time = -1;
    static int first_report = 1;
    uint64_t nb_frames_dup = 0, nb_frames_drop = 0;
-    int mins, secs, ms, us;
+    int mins, secs, us;
    int64_t hours;
    const char *hours_sign;
    int ret;
@ -586,7 +579,6 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
    vid = 0;
    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
    av_bprint_init(&buf_script, 0, AV_BPRINT_SIZE_AUTOMATIC);
    for (OutputStream *ost = ost_iter(NULL); ost; ost = ost_iter(ost)) {
        const float q = ost->enc ? atomic_load(&ost->quality) / (float) FF_QP2LAMBDA : -1;
@ -677,15 +669,6 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
        av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
    }
    secs = (int)t;
    ms = (int)((t - secs) * 1000);
    mins = secs / 60;
    secs %= 60;
    hours = mins / 60;
    mins %= 60;
    av_bprintf(&buf, " elapsed=%"PRId64":%02d:%02d.%02d", hours, mins, secs, ms / 10);
    if (print_stats || is_last_report) {
        const char end = is_last_report ? '\n' : '\r';
        if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
@ -745,7 +728,7 @@ static void print_stream_maps(void)
                av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
            av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file->index,
-                   ost->index, ost->enc->enc_ctx->codec->name);
+                   ost->index, ost->enc_ctx->codec->name);
            continue;
        }
@ -754,9 +737,9 @@ static void print_stream_maps(void)
               ost->ist->index,
               ost->file->index,
               ost->index);
-        if (ost->enc) {
+        if (ost->enc_ctx) {
            const AVCodec *in_codec    = ost->ist->dec;
-            const AVCodec *out_codec   = ost->enc->enc_ctx->codec;
+            const AVCodec *out_codec   = ost->enc_ctx->codec;
            const char *decoder_name   = "?";
            const char *in_codec_name  = "?";
            const char *encoder_name   = "?";
@ -1029,8 +1012,5 @@ finish:
    sch_free(&sch);
    av_log(NULL, AV_LOG_VERBOSE, "\n");
    av_log(NULL, AV_LOG_VERBOSE, "Exiting with exit code %d\n", ret);
    return ret;
 }
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@ -39,7 +39,6 @@
 #include "libavfilter/avfilter.h"
 #include "libavutil/avutil.h"
 #include "libavutil/bprint.h"
 #include "libavutil/dict.h"
 #include "libavutil/eval.h"
 #include "libavutil/fifo.h"
@ -164,7 +163,6 @@ typedef struct OptionsContext {
    int loop;
    int rate_emu;
    float readrate;
    float readrate_catchup;
    double readrate_initial_burst;
    int accurate_seek;
    int thread_queue_size;
@ -233,7 +231,6 @@ typedef struct OptionsContext {
    SpecifierOptList filter_scripts;
 #endif
    SpecifierOptList reinit_filters;
    SpecifierOptList drop_changed;
    SpecifierOptList fix_sub_duration;
    SpecifierOptList fix_sub_duration_heartbeat;
    SpecifierOptList canvas_sizes;
@ -264,7 +261,6 @@ enum IFilterFlags {
    IFILTER_FLAG_REINIT         = (1 << 1),
    IFILTER_FLAG_CFR            = (1 << 2),
    IFILTER_FLAG_CROP           = (1 << 3),
    IFILTER_FLAG_DROPCHANGED    = (1 << 4),
 };
 typedef struct InputFilterOptions {
@ -320,7 +316,7 @@ typedef struct OutputFilterOptions {
    AVDictionary       *sws_opts;
    AVDictionary       *swr_opts;
-    int64_t             nb_threads;
+    const char         *nb_threads;
    // A combination of OFilterFlags.
    unsigned            flags;
@ -332,8 +328,6 @@ typedef struct OutputFilterOptions {
    enum AVColorRange   color_range;
    enum VideoSyncMethod vsync_method;
    AVRational           frame_rate;
    AVRational           max_frame_rate;
    int                 sample_rate;
    AVChannelLayout     ch_layout;
@ -353,18 +347,6 @@ typedef struct OutputFilterOptions {
 typedef struct InputFilter {
    struct FilterGraph *graph;
    uint8_t            *name;
    int                 index;
    // filter data type
    enum AVMediaType    type;
    AVFilterContext    *filter;
    char               *input_name;
    /* for filters that are not yet bound to an input stream,
     * this stores the input linklabel, if any */
    uint8_t            *linklabel;
 } InputFilter;
 typedef struct OutputFilter {
@ -372,11 +354,6 @@ typedef struct OutputFilter {
    struct FilterGraph  *graph;
    uint8_t             *name;
    int                  index;
    AVFilterContext     *filter;
    char                *output_name;
    /* for filters that are not yet bound to an output stream,
     * this stores the output linklabel, if any */
@ -399,9 +376,6 @@ typedef struct FilterGraph {
    int          nb_inputs;
    OutputFilter **outputs;
    int         nb_outputs;
    const char      *graph_desc;
    struct AVBPrint graph_print_buf;
 } FilterGraph;
 enum DecoderFlags {
@ -487,6 +461,14 @@ typedef struct InputStream {
     * currently video and audio only */
    InputFilter         **filters;
    int                nb_filters;
    /*
     * Output targets that do not go through lavfi, i.e. subtitles or
     * streamcopy. Those two cases are distinguished by the OutputStream
     * having an encoder or not.
     */
    struct OutputStream **outputs;
    int                nb_outputs;
 } InputStream;
 typedef struct InputFile {
@ -563,6 +545,13 @@ typedef struct EncStats {
    int                 lock_initialized;
 } EncStats;
 extern const char *const forced_keyframes_const_names[];
 typedef enum {
    ENCODER_FINISHED = 1,
    MUXER_FINISHED = 2,
 } OSTFinished ;
 enum {
    KF_FORCE_SOURCE         = 1,
 #if FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP
@ -586,15 +575,7 @@ typedef struct KeyframeForceCtx {
    int          dropped_keyframe;
 } KeyframeForceCtx;
-typedef struct Encoder {
+typedef struct Encoder Encoder;
    const AVClass          *class;
    AVCodecContext         *enc_ctx;
    // number of frames/samples sent to the encoder
    uint64_t                frames_encoded;
    uint64_t                samples_encoded;
 } Encoder;
 enum CroppingType {
    CROP_DISABLED = 0,
@ -613,6 +594,12 @@ typedef struct OutputStream {
    int index;               /* stream index in the output file */
    /**
     * Codec parameters for packets submitted to the muxer (i.e. before
     * bitstream filtering, if any).
     */
    AVCodecParameters *par_in;
    /* input stream that is the source for this output stream;
     * may be NULL for streams with no well-defined source, e.g.
     * attachments or outputs from complex filtergraphs */
@ -621,8 +608,12 @@ typedef struct OutputStream {
    AVStream *st;            /* stream in the output file */
    Encoder *enc;
    AVCodecContext *enc_ctx;
    /* video only */
    AVRational frame_rate;
    AVRational max_frame_rate;
    int force_fps;
 #if FFMPEG_OPT_TOP
    int top_field_first;
 #endif
@ -645,6 +636,9 @@ typedef struct OutputStream {
    /* stats */
    // number of packets send to the muxer
    atomic_uint_least64_t packets_written;
    // number of frames/samples sent to the encoder
    uint64_t frames_encoded;
    uint64_t samples_encoded;
    /* packet quality factor */
    atomic_int quality;
@ -737,11 +731,7 @@ extern float max_error_rate;
 extern char *filter_nbthreads;
 extern int filter_complex_nbthreads;
 extern int filter_buffered_frames;
 extern int vstats_version;
 extern int print_graphs;
 extern char *print_graphs_file;
 extern char *print_graphs_format;
 extern int auto_conversion_filters;
 extern const AVIOInterruptCB int_cb;
@ -772,11 +762,10 @@ int find_codec(void *logctx, const char *name,
 int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global);
 int filtergraph_is_simple(const FilterGraph *fg);
-int fg_create_simple(FilterGraph **pfg,
+int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
-                     InputStream *ist,
+                            char *graph_desc,
-                     char *graph_desc,
+                            Scheduler *sch, unsigned sch_idx_enc,
-                     Scheduler *sch, unsigned sched_idx_enc,
+                            const OutputFilterOptions *opts);
                     const OutputFilterOptions *opts);
 int fg_finalise_bindings(void);
 /**
@ -790,7 +779,7 @@ const FrameData *frame_data_c(AVFrame *frame);
 FrameData       *packet_data  (AVPacket *pkt);
 const FrameData *packet_data_c(AVPacket *pkt);
-int ofilter_bind_enc(OutputFilter *ofilter,
+int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
                     unsigned sched_idx_enc,
                     const OutputFilterOptions *opts);
@ -869,7 +858,7 @@ int dec_request_view(Decoder *dec, const ViewSpecifier *vs,
                     SchedulerNode *src);
 int enc_alloc(Encoder **penc, const AVCodec *codec,
-              Scheduler *sch, unsigned sch_idx, void *log_parent);
+              Scheduler *sch, unsigned sch_idx);
 void enc_free(Encoder **penc);
 int enc_open(void *opaque, const AVFrame *frame);
@ -882,8 +871,7 @@ int enc_loopback(Encoder *enc);
 *
 * Open the muxer once all the streams have been initialized.
 */
-int of_stream_init(OutputFile *of, OutputStream *ost,
+int of_stream_init(OutputFile *of, OutputStream *ost);
                   const AVCodecContext *enc_ctx);
 int of_write_trailer(OutputFile *of);
 int of_open(const OptionsContext *o, const char *filename, Scheduler *sch);
 void of_free(OutputFile **pof);
@ -895,8 +883,7 @@ int64_t of_filesize(OutputFile *of);
 int ifile_open(const OptionsContext *o, const char *filename, Scheduler *sch);
 void ifile_close(InputFile **f);
-int ist_use(InputStream *ist, int decoding_needed,
+int ist_output_add(InputStream *ist, OutputStream *ost);
            const ViewSpecifier *vs, SchedulerNode *src);
 int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple,
                   const ViewSpecifier *vs, InputFilterOptions *opts,
                   SchedulerNode *src);
--- a/fftools/ffmpeg_dec.c
+++ b/fftools/ffmpeg_dec.c
@ -733,12 +733,13 @@ static int packet_decode(DecoderPriv *dp, AVPacket *pkt, AVFrame *frame)
        av_log(dp, AV_LOG_ERROR, "Error submitting %s to decoder: %s\n",
               pkt ? "packet" : "EOF", av_err2str(ret));
-        if (ret == AVERROR_EOF)
+        if (ret != AVERROR_EOF) {
-            return ret;
+            dp->dec.decode_errors++;
            if (!exit_on_error)
                ret = 0;
        }
-        dp->dec.decode_errors++;
+        return ret;
        if (exit_on_error)
            return ret;
    }
    while (1) {
@ -1594,7 +1595,7 @@ static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
    if (o->flags & DECODER_FLAG_BITEXACT)
        dp->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
-    // we apply cropping ourselves
+    // we apply cropping outselves
    dp->apply_cropping          = dp->dec_ctx->apply_cropping;
    dp->dec_ctx->apply_cropping = 0;
@ -1637,11 +1638,6 @@ static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
            param_out->color_range          = dp->dec_ctx->color_range;
        }
        av_frame_side_data_free(&param_out->side_data, &param_out->nb_side_data);
        ret = clone_side_data(&param_out->side_data, &param_out->nb_side_data,
                              dp->dec_ctx->decoded_side_data, dp->dec_ctx->nb_decoded_side_data, 0);
        if (ret < 0)
            return ret;
        param_out->time_base = dp->dec_ctx->pkt_timebase;
    }
--- a/fftools/ffmpeg_demux.c
+++ b/fftools/ffmpeg_demux.c
@ -67,18 +67,17 @@ typedef struct DemuxStream {
    int                      reinit_filters;
    int                      autorotate;
    int                      apply_cropping;
    int                      drop_changed;
    int                      wrap_correction_done;
    int                      saw_first_ts;
-    /// dts of the first packet read for this stream (in AV_TIME_BASE units)
+    ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
    int64_t                  first_dts;
    /* predicted dts of the next packet read for this stream or (when there are
     * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
    int64_t                  next_dts;
-    /// dts of the last packet read for this stream (in AV_TIME_BASE units)
+    ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
    int64_t                  dts;
    const AVCodecDescriptor *codec_desc;
@ -95,12 +94,6 @@ typedef struct DemuxStream {
    uint64_t                 nb_packets;
    // combined size of all the packets read
    uint64_t                 data_size;
    // latest wallclock time at which packet reading resumed after a stall - used for readrate
    int64_t                  resume_wc;
    // timestamp of first packet sent after the latest stall - used for readrate
    int64_t                  resume_pts;
    // measure of how far behind packet reading is against spceified readrate
    int64_t                  lag;
 } DemuxStream;
 typedef struct Demuxer {
@ -134,7 +127,6 @@ typedef struct Demuxer {
    float                 readrate;
    double                readrate_initial_burst;
    float                 readrate_catchup;
    Scheduler            *sch;
@ -248,7 +240,7 @@ static void ts_discontinuity_detect(Demuxer *d, InputStream *ist,
            }
        } else {
            if (FFABS(delta) > 1LL * dts_error_threshold * AV_TIME_BASE) {
-                av_log(ist, AV_LOG_WARNING,
+                av_log(NULL, AV_LOG_WARNING,
                       "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n",
                       pkt->dts, ds->next_dts, pkt->stream_index);
                pkt->dts = AV_NOPTS_VALUE;
@ -257,7 +249,7 @@ static void ts_discontinuity_detect(Demuxer *d, InputStream *ist,
                int64_t pkt_pts = av_rescale_q(pkt->pts, pkt->time_base, AV_TIME_BASE_Q);
                delta = pkt_pts - ds->next_dts;
                if (FFABS(delta) > 1LL * dts_error_threshold * AV_TIME_BASE) {
-                    av_log(ist, AV_LOG_WARNING,
+                    av_log(NULL, AV_LOG_WARNING,
                           "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n",
                           pkt->pts, ds->next_dts, pkt->stream_index);
                    pkt->pts = AV_NOPTS_VALUE;
@ -269,7 +261,7 @@ static void ts_discontinuity_detect(Demuxer *d, InputStream *ist,
        int64_t delta = pkt_dts - d->last_ts;
        if (FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE) {
            d->ts_offset_discont -= delta;
-            av_log(ist, AV_LOG_DEBUG,
+            av_log(NULL, AV_LOG_DEBUG,
                   "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
                   delta, d->ts_offset_discont);
            pkt->dts -= av_rescale_q(delta, AV_TIME_BASE_Q, pkt->time_base);
@ -484,7 +476,7 @@ static int input_packet_process(Demuxer *d, AVPacket *pkt, unsigned *send_flags)
    fd->wallclock[LATENCY_PROBE_DEMUX] = av_gettime_relative();
    if (debug_ts) {
-        av_log(ist, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s off:%s off_time:%s\n",
+        av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s off:%s off_time:%s\n",
               f->index, pkt->stream_index,
               av_get_media_type_string(ist->par->codec_type),
               av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &pkt->time_base),
@ -503,42 +495,16 @@ static void readrate_sleep(Demuxer *d)
                          (f->start_time_effective != AV_NOPTS_VALUE ? f->start_time_effective * !start_at_zero : 0) +
                          (f->start_time != AV_NOPTS_VALUE ? f->start_time : 0)
                         );
-    int64_t initial_burst = AV_TIME_BASE * d->readrate_initial_burst;
+    int64_t burst_until = AV_TIME_BASE * d->readrate_initial_burst;
    int resume_warn = 0;
    for (int i = 0; i < f->nb_streams; i++) {
        InputStream *ist = f->streams[i];
        DemuxStream  *ds = ds_from_ist(ist);
-        int64_t stream_ts_offset, pts, now, wc_elapsed, elapsed, lag, max_pts, limit_pts;
+        int64_t stream_ts_offset, pts, now;
        if (ds->discard) continue;
        stream_ts_offset = FFMAX(ds->first_dts != AV_NOPTS_VALUE ? ds->first_dts : 0, file_start);
        pts = av_rescale(ds->dts, 1000000, AV_TIME_BASE);
-        now = av_gettime_relative();
+        now = (av_gettime_relative() - d->wallclock_start) * d->readrate + stream_ts_offset;
-        wc_elapsed = now - d->wallclock_start;
+        if (pts - burst_until > now)
-        max_pts = stream_ts_offset + initial_burst + wc_elapsed * d->readrate;
+            av_usleep(pts - burst_until - now);
        lag = FFMAX(max_pts - pts, 0);
        if ( (!ds->lag && lag > 0.3 * AV_TIME_BASE) || ( lag > ds->lag + 0.3 * AV_TIME_BASE) ) {
            ds->lag = lag;
            ds->resume_wc = now;
            ds->resume_pts = pts;
            av_log_once(ds, AV_LOG_WARNING, AV_LOG_DEBUG, &resume_warn,
                        "Resumed reading at pts %0.3f with rate %0.3f after a lag of %0.3fs\n",
                        (float)pts/AV_TIME_BASE, d->readrate_catchup, (float)lag/AV_TIME_BASE);
        }
        if (ds->lag && !lag)
            ds->lag = ds->resume_wc = ds->resume_pts = 0;
        if (ds->resume_wc) {
            elapsed = now - ds->resume_wc;
            limit_pts = ds->resume_pts + elapsed * d->readrate_catchup;
        } else {
            elapsed = wc_elapsed;
            limit_pts = max_pts;
        }
        if (pts > limit_pts)
            av_usleep(pts - limit_pts);
    }
 }
@ -874,6 +840,7 @@ static void ist_free(InputStream **pist)
    av_dict_free(&ds->decoder_opts);
    av_freep(&ist->filters);
    av_freep(&ist->outputs);
    av_freep(&ds->dec_opts.hwaccel_device);
    avcodec_parameters_free(&ist->par);
@ -907,8 +874,8 @@ void ifile_close(InputFile **pf)
    av_freep(pf);
 }
-int ist_use(InputStream *ist, int decoding_needed,
+static int ist_use(InputStream *ist, int decoding_needed,
-            const ViewSpecifier *vs, SchedulerNode *src)
+                   const ViewSpecifier *vs, SchedulerNode *src)
 {
    Demuxer      *d = demuxer_from_ifile(ist->file);
    DemuxStream *ds = ds_from_ist(ist);
@ -945,18 +912,9 @@ int ist_use(InputStream *ist, int decoding_needed,
    if (decoding_needed && ds->sch_idx_dec < 0) {
        int is_audio = ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
        int is_unreliable = !!(d->f.ctx->iformat->flags & AVFMT_NOTIMESTAMPS);
        int64_t use_wallclock_as_timestamps;
        ret = av_opt_get_int(d->f.ctx, "use_wallclock_as_timestamps", 0, &use_wallclock_as_timestamps);
        if (ret < 0)
            return ret;
        if (use_wallclock_as_timestamps)
            is_unreliable = 0;
        ds->dec_opts.flags |= (!!ist->fix_sub_duration * DECODER_FLAG_FIX_SUB_DURATION) |
-                              (!!is_unreliable * DECODER_FLAG_TS_UNRELIABLE) |
+                              (!!(d->f.ctx->iformat->flags & AVFMT_NOTIMESTAMPS) * DECODER_FLAG_TS_UNRELIABLE) |
                              (!!(d->loop && is_audio) * DECODER_FLAG_SEND_END_TS)
 #if FFMPEG_OPT_TOP
                              | ((ist->top_field_first >= 0) * DECODER_FLAG_TOP_FIELD_FIRST)
@ -1017,6 +975,25 @@ int ist_use(InputStream *ist, int decoding_needed,
    return 0;
 }
 int ist_output_add(InputStream *ist, OutputStream *ost)
 {
    DemuxStream *ds = ds_from_ist(ist);
    SchedulerNode src;
    int ret;
    ret = ist_use(ist, ost->enc ? DECODING_FOR_OST : 0, NULL, &src);
    if (ret < 0)
        return ret;
    ret = GROW_ARRAY(ist->outputs, ist->nb_outputs);
    if (ret < 0)
        return ret;
    ist->outputs[ist->nb_outputs - 1] = ost;
    return ost->enc ? ds->sch_idx_dec : ds->sch_idx_stream;
 }
 int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple,
                   const ViewSpecifier *vs, InputFilterOptions *opts,
                   SchedulerNode *src)
@ -1109,8 +1086,7 @@ int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple,
        return AVERROR(ENOMEM);
    opts->flags |= IFILTER_FLAG_AUTOROTATE * !!(ds->autorotate) |
-                   IFILTER_FLAG_REINIT     * !!(ds->reinit_filters) |
+                   IFILTER_FLAG_REINIT     * !!(ds->reinit_filters);
                   IFILTER_FLAG_DROPCHANGED* !!(ds->drop_changed);
    return 0;
 }
@ -1148,7 +1124,7 @@ static int choose_decoder(const OptionsContext *o, void *logctx,
                for (int j = 0; config = avcodec_get_hw_config(c, j); j++) {
                    if (config->device_type == hwaccel_device_type) {
-                        av_log(logctx, AV_LOG_VERBOSE, "Selecting decoder '%s' because of requested hwaccel method %s\n",
+                        av_log(NULL, AV_LOG_VERBOSE, "Selecting decoder '%s' because of requested hwaccel method %s\n",
                               c->name, av_hwdevice_get_type_name(hwaccel_device_type));
                        *pcodec = c;
                        return 0;
@ -1421,17 +1397,6 @@ static int ist_add(const OptionsContext *o, Demuxer *d, AVStream *st, AVDictiona
    ds->reinit_filters = -1;
    opt_match_per_stream_int(ist, &o->reinit_filters, ic, st, &ds->reinit_filters);
    ds->drop_changed = 0;
    opt_match_per_stream_int(ist, &o->drop_changed, ic, st, &ds->drop_changed);
    if (ds->drop_changed && ds->reinit_filters) {
        if (ds->reinit_filters > 0) {
            av_log(ist, AV_LOG_ERROR, "drop_changed and reinit_filters both enabled. These are mutually exclusive.\n");
            return AVERROR(EINVAL);
        }
        ds->reinit_filters = 0;
    }
    ist->user_set_discard = AVDISCARD_NONE;
    if ((o->video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ||
@ -1781,9 +1746,8 @@ int ifile_open(const OptionsContext *o, const char *filename, Scheduler *sch)
    /* open the input file with generic avformat function */
    err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
    if (err < 0) {
-        if (err != AVERROR_EXIT)
+        av_log(d, AV_LOG_ERROR,
-            av_log(d, AV_LOG_ERROR,
+               "Error opening input: %s\n", av_err2str(err));
                   "Error opening input: %s\n", av_err2str(err));
        if (err == AVERROR_PROTOCOL_NOT_FOUND)
            av_log(d, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
        return err;
@ -1914,22 +1878,9 @@ int ifile_open(const OptionsContext *o, const char *filename, Scheduler *sch)
                   d->readrate_initial_burst);
            return AVERROR(EINVAL);
        }
-        d->readrate_catchup = o->readrate_catchup ? o->readrate_catchup : d->readrate * 1.05;
+    } else if (o->readrate_initial_burst) {
-        if (d->readrate_catchup < d->readrate) {
+        av_log(d, AV_LOG_WARNING, "Option -readrate_initial_burst ignored "
-            av_log(d, AV_LOG_ERROR,
+               "since neither -readrate nor -re were given\n");
                   "Option -readrate_catchup is %0.3f; it must be at least equal to %0.3f.\n",
                   d->readrate_catchup, d->readrate);
            return AVERROR(EINVAL);
        }
    } else {
        if (o->readrate_initial_burst) {
            av_log(d, AV_LOG_WARNING, "Option -readrate_initial_burst ignored "
                   "since neither -readrate nor -re were given\n");
        }
        if (o->readrate_catchup) {
            av_log(d, AV_LOG_WARNING, "Option -readrate_catchup ignored "
                   "since neither -readrate nor -re were given\n");
        }
    }
    /* Add all the streams from the given input file to the demuxer */
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@ -38,12 +38,7 @@
 #include "libavcodec/avcodec.h"
-typedef struct EncoderPriv {
+struct Encoder {
    Encoder        e;
    void          *log_parent;
    char           log_name[32];
    // combined size of all the packets received from the encoder
    uint64_t data_size;
@ -55,12 +50,7 @@ typedef struct EncoderPriv {
    Scheduler      *sch;
    unsigned        sch_idx;
-} EncoderPriv;
+};
 static EncoderPriv *ep_from_enc(Encoder *enc)
 {
    return (EncoderPriv*)enc;
 }
 // data that is local to the decoder thread and not visible outside of it
 typedef struct EncoderThread {
@ -75,90 +65,56 @@ void enc_free(Encoder **penc)
    if (!enc)
        return;
    if (enc->enc_ctx)
        av_freep(&enc->enc_ctx->stats_in);
    avcodec_free_context(&enc->enc_ctx);
    av_freep(penc);
 }
 static const char *enc_item_name(void *obj)
 {
    const EncoderPriv *ep = obj;
    return ep->log_name;
 }
 static const AVClass enc_class = {
    .class_name                = "Encoder",
    .version                   = LIBAVUTIL_VERSION_INT,
    .parent_log_context_offset = offsetof(EncoderPriv, log_parent),
    .item_name                 = enc_item_name,
 };
 int enc_alloc(Encoder **penc, const AVCodec *codec,
-              Scheduler *sch, unsigned sch_idx, void *log_parent)
+              Scheduler *sch, unsigned sch_idx)
 {
-    EncoderPriv *ep;
+    Encoder *enc;
    int ret = 0;
    *penc = NULL;
-    ep = av_mallocz(sizeof(*ep));
+    enc = av_mallocz(sizeof(*enc));
-    if (!ep)
+    if (!enc)
        return AVERROR(ENOMEM);
-    ep->e.class    = &enc_class;
+    enc->sch     = sch;
-    ep->log_parent = log_parent;
+    enc->sch_idx = sch_idx;
-    ep->sch     = sch;
+    *penc = enc;
    ep->sch_idx = sch_idx;
    snprintf(ep->log_name, sizeof(ep->log_name), "enc:%s", codec->name);
    ep->e.enc_ctx = avcodec_alloc_context3(codec);
    if (!ep->e.enc_ctx) {
        ret = AVERROR(ENOMEM);
        goto fail;
    }
    *penc = &ep->e;
    return 0;
 fail:
    enc_free((Encoder**)&ep);
    return ret;
 }
-static int hw_device_setup_for_encode(Encoder *e, AVCodecContext *enc_ctx,
+static int hw_device_setup_for_encode(OutputStream *ost, AVBufferRef *frames_ref)
                                      AVBufferRef *frames_ref)
 {
    const AVCodecHWConfig *config;
    HWDevice *dev = NULL;
    if (frames_ref &&
        ((AVHWFramesContext*)frames_ref->data)->format ==
-        enc_ctx->pix_fmt) {
+        ost->enc_ctx->pix_fmt) {
        // Matching format, will try to use hw_frames_ctx.
    } else {
        frames_ref = NULL;
    }
    for (int i = 0;; i++) {
-        config = avcodec_get_hw_config(enc_ctx->codec, i);
+        config = avcodec_get_hw_config(ost->enc_ctx->codec, i);
        if (!config)
            break;
        if (frames_ref &&
            config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX &&
            (config->pix_fmt == AV_PIX_FMT_NONE ||
-             config->pix_fmt == enc_ctx->pix_fmt)) {
+             config->pix_fmt == ost->enc_ctx->pix_fmt)) {
-            av_log(e, AV_LOG_VERBOSE, "Using input "
+            av_log(ost->enc_ctx, AV_LOG_VERBOSE, "Using input "
                   "frames context (format %s) with %s encoder.\n",
-                   av_get_pix_fmt_name(enc_ctx->pix_fmt),
+                   av_get_pix_fmt_name(ost->enc_ctx->pix_fmt),
-                   enc_ctx->codec->name);
+                   ost->enc_ctx->codec->name);
-            enc_ctx->hw_frames_ctx = av_buffer_ref(frames_ref);
+            ost->enc_ctx->hw_frames_ctx = av_buffer_ref(frames_ref);
-            if (!enc_ctx->hw_frames_ctx)
+            if (!ost->enc_ctx->hw_frames_ctx)
                return AVERROR(ENOMEM);
            return 0;
        }
@ -169,11 +125,11 @@ static int hw_device_setup_for_encode(Encoder *e, AVCodecContext *enc_ctx,
    }
    if (dev) {
-        av_log(e, AV_LOG_VERBOSE, "Using device %s "
+        av_log(ost->enc_ctx, AV_LOG_VERBOSE, "Using device %s "
               "(type %s) with %s encoder.\n", dev->name,
-               av_hwdevice_get_type_name(dev->type), enc_ctx->codec->name);
+               av_hwdevice_get_type_name(dev->type), ost->enc_ctx->codec->name);
-        enc_ctx->hw_device_ctx = av_buffer_ref(dev->device_ref);
+        ost->enc_ctx->hw_device_ctx = av_buffer_ref(dev->device_ref);
-        if (!enc_ctx->hw_device_ctx)
+        if (!ost->enc_ctx->hw_device_ctx)
            return AVERROR(ENOMEM);
    } else {
        // No device required, or no device available.
@ -181,13 +137,37 @@ static int hw_device_setup_for_encode(Encoder *e, AVCodecContext *enc_ctx,
    return 0;
 }
 static int set_encoder_id(OutputFile *of, OutputStream *ost)
 {
    const char *cname = ost->enc_ctx->codec->name;
    uint8_t *encoder_string;
    int encoder_string_len;
    if (av_dict_get(ost->st->metadata, "encoder",  NULL, 0))
        return 0;
    encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(cname) + 2;
    encoder_string     = av_mallocz(encoder_string_len);
    if (!encoder_string)
        return AVERROR(ENOMEM);
    if (!of->bitexact && !ost->bitexact)
        av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
    else
        av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
    av_strlcat(encoder_string, cname, encoder_string_len);
    av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
                AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
    return 0;
 }
 int enc_open(void *opaque, const AVFrame *frame)
 {
    OutputStream *ost = opaque;
    InputStream *ist = ost->ist;
    Encoder              *e = ost->enc;
-    EncoderPriv         *ep = ep_from_enc(e);
+    AVCodecContext *enc_ctx = ost->enc_ctx;
    AVCodecContext *enc_ctx = e->enc_ctx;
    Decoder            *dec = NULL;
    const AVCodec      *enc = enc_ctx->codec;
    OutputFile          *of = ost->file;
@ -195,7 +175,7 @@ int enc_open(void *opaque, const AVFrame *frame)
    int frame_samples = 0;
    int ret;
-    if (ep->opened)
+    if (e->opened)
        return 0;
    // frame is always non-NULL for audio and video
@ -220,6 +200,10 @@ int enc_open(void *opaque, const AVFrame *frame)
        }
    }
    ret = set_encoder_id(of, ost);
    if (ret < 0)
        return ret;
    if (ist)
        dec = ist->decoder;
@ -227,6 +211,7 @@ int enc_open(void *opaque, const AVFrame *frame)
    if (ost->type == AVMEDIA_TYPE_AUDIO || ost->type == AVMEDIA_TYPE_VIDEO) {
        enc_ctx->time_base      = frame->time_base;
        enc_ctx->framerate      = fd->frame_rate_filter;
        ost->st->avg_frame_rate = fd->frame_rate_filter;
    }
    switch (enc_ctx->codec_type) {
@ -253,7 +238,7 @@ int enc_open(void *opaque, const AVFrame *frame)
                   frame->height > 0);
        enc_ctx->width  = frame->width;
        enc_ctx->height = frame->height;
-        enc_ctx->sample_aspect_ratio =
+        enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
            ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
            av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
            frame->sample_aspect_ratio;
@ -266,26 +251,11 @@ int enc_open(void *opaque, const AVFrame *frame)
            enc_ctx->bits_per_raw_sample = FFMIN(fd->bits_per_raw_sample,
                                                 av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
        /**
         * The video color properties should always be in sync with the user-
         * requested values, since we forward them to the filter graph.
         */
        enc_ctx->color_range            = frame->color_range;
        enc_ctx->color_primaries        = frame->color_primaries;
        enc_ctx->color_trc              = frame->color_trc;
        enc_ctx->colorspace             = frame->colorspace;
-
+        enc_ctx->chroma_sample_location = frame->chroma_location;
        /* Video properties which are not part of filter graph negotiation */
        if (enc_ctx->chroma_sample_location == AVCHROMA_LOC_UNSPECIFIED) {
            enc_ctx->chroma_sample_location = frame->chroma_location;
        } else if (enc_ctx->chroma_sample_location != frame->chroma_location &&
                   frame->chroma_location != AVCHROMA_LOC_UNSPECIFIED) {
            av_log(e, AV_LOG_WARNING,
                   "Requested chroma sample location '%s' does not match the "
                   "frame tagged sample location '%s'; result may be incorrect.\n",
                   av_chroma_location_name(enc_ctx->chroma_sample_location),
                   av_chroma_location_name(frame->chroma_location));
        }
        if (enc_ctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) ||
            (frame->flags & AV_FRAME_FLAG_INTERLACED)
@ -342,31 +312,42 @@ int enc_open(void *opaque, const AVFrame *frame)
    enc_ctx->flags |= AV_CODEC_FLAG_FRAME_DURATION;
-    ret = hw_device_setup_for_encode(e, enc_ctx, frame ? frame->hw_frames_ctx : NULL);
+    ret = hw_device_setup_for_encode(ost, frame ? frame->hw_frames_ctx : NULL);
    if (ret < 0) {
-        av_log(e, AV_LOG_ERROR,
+        av_log(ost, AV_LOG_ERROR,
               "Encoding hardware device setup failed: %s\n", av_err2str(ret));
        return ret;
    }
-    if ((ret = avcodec_open2(enc_ctx, enc, NULL)) < 0) {
+    if ((ret = avcodec_open2(ost->enc_ctx, enc, NULL)) < 0) {
        if (ret != AVERROR_EXPERIMENTAL)
-            av_log(e, AV_LOG_ERROR, "Error while opening encoder - maybe "
+            av_log(ost, AV_LOG_ERROR, "Error while opening encoder - maybe "
                   "incorrect parameters such as bit_rate, rate, width or height.\n");
        return ret;
    }
-    ep->opened = 1;
+    e->opened = 1;
-    if (enc_ctx->frame_size)
+    if (ost->enc_ctx->frame_size)
-        frame_samples = enc_ctx->frame_size;
+        frame_samples = ost->enc_ctx->frame_size;
-    if (enc_ctx->bit_rate && enc_ctx->bit_rate < 1000 &&
+    if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000 &&
-        enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
+        ost->enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
-        av_log(e, AV_LOG_WARNING, "The bitrate parameter is set too low."
+        av_log(ost, AV_LOG_WARNING, "The bitrate parameter is set too low."
                                    " It takes bits/s as argument, not kbits/s\n");
-    ret = of_stream_init(of, ost, enc_ctx);
+    ret = avcodec_parameters_from_context(ost->par_in, ost->enc_ctx);
    if (ret < 0) {
        av_log(ost, AV_LOG_FATAL,
               "Error initializing the output stream codec context.\n");
        return ret;
    }
    // copy timebase while removing common factors
    if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
        ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
    ret = of_stream_init(of, ost);
    if (ret < 0)
        return ret;
@ -388,20 +369,19 @@ static int do_subtitle_out(OutputFile *of, OutputStream *ost, const AVSubtitle *
                           AVPacket *pkt)
 {
    Encoder *e = ost->enc;
    EncoderPriv *ep = ep_from_enc(e);
    int subtitle_out_max_size = 1024 * 1024;
    int subtitle_out_size, nb, i, ret;
    AVCodecContext *enc;
    int64_t pts;
    if (sub->pts == AV_NOPTS_VALUE) {
-        av_log(e, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
+        av_log(ost, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
        return exit_on_error ? AVERROR(EINVAL) : 0;
    }
    if ((of->start_time != AV_NOPTS_VALUE && sub->pts < of->start_time))
        return 0;
-    enc = e->enc_ctx;
+    enc = ost->enc_ctx;
    /* Note: DVB subtitle need one packet to draw them and one other
       packet to clear them */
@ -440,11 +420,11 @@ static int do_subtitle_out(OutputFile *of, OutputStream *ost, const AVSubtitle *
            local_sub.rects += i;
        }
-        e->frames_encoded++;
+        ost->frames_encoded++;
        subtitle_out_size = avcodec_encode_subtitle(enc, pkt->data, pkt->size, &local_sub);
        if (subtitle_out_size < 0) {
-            av_log(e, AV_LOG_FATAL, "Subtitle encoding failed\n");
+            av_log(ost, AV_LOG_FATAL, "Subtitle encoding failed\n");
            return subtitle_out_size;
        }
@ -462,7 +442,7 @@ static int do_subtitle_out(OutputFile *of, OutputStream *ost, const AVSubtitle *
        }
        pkt->dts = pkt->pts;
-        ret = sch_enc_send(ep->sch, ep->sch_idx, pkt);
+        ret = sch_enc_send(e->sch, e->sch_idx, pkt);
        if (ret < 0) {
            av_packet_unref(pkt);
            return ret;
@ -477,7 +457,6 @@ void enc_stats_write(OutputStream *ost, EncStats *es,
                     uint64_t frame_num)
 {
    Encoder      *e = ost->enc;
    EncoderPriv *ep = ep_from_enc(e);
    AVIOContext *io = es->io;
    AVRational   tb = frame ? frame->time_base : pkt->time_base;
    int64_t     pts = frame ? frame->pts : pkt->pts;
@ -515,7 +494,7 @@ void enc_stats_write(OutputStream *ost, EncStats *es,
        if (frame) {
            switch (c->type) {
-            case ENC_STATS_SAMPLE_NUM:  avio_printf(io, "%"PRIu64,  e->samples_encoded);            continue;
+            case ENC_STATS_SAMPLE_NUM:  avio_printf(io, "%"PRIu64,  ost->samples_encoded);          continue;
            case ENC_STATS_NB_SAMPLES:  avio_printf(io, "%d",       frame->nb_samples);             continue;
            default: av_assert0(0);
            }
@ -533,7 +512,7 @@ void enc_stats_write(OutputStream *ost, EncStats *es,
            }
            case ENC_STATS_AVG_BITRATE: {
                double duration = pkt->dts * av_q2d(tb);
-                avio_printf(io, "%g",  duration > 0 ? 8.0 * ep->data_size / duration : -1.);
+                avio_printf(io, "%g",  duration > 0 ? 8.0 * e->data_size / duration : -1.);
                continue;
            }
            default: av_assert0(0);
@ -554,10 +533,9 @@ static inline double psnr(double d)
 static int update_video_stats(OutputStream *ost, const AVPacket *pkt, int write_vstats)
 {
    Encoder        *e = ost->enc;
    EncoderPriv   *ep = ep_from_enc(e);
    const uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
                                                NULL);
-    AVCodecContext *enc = e->enc_ctx;
+    AVCodecContext *enc = ost->enc_ctx;
    enum AVPictureType pict_type;
    int64_t frame_number;
    double ti1, bitrate, avg_bitrate;
@ -588,7 +566,7 @@ static int update_video_stats(OutputStream *ost, const AVPacket *pkt, int write_
        }
    }
-    frame_number = ep->packets_encoded;
+    frame_number = e->packets_encoded;
    if (vstats_version <= 1) {
        fprintf(vstats_file, "frame= %5"PRId64" q= %2.1f ", frame_number,
                quality / (float)FF_QP2LAMBDA);
@ -608,9 +586,9 @@ static int update_video_stats(OutputStream *ost, const AVPacket *pkt, int write_
        ti1 = 0.01;
    bitrate     = (pkt->size * 8) / av_q2d(enc->time_base) / 1000.0;
-    avg_bitrate = (double)(ep->data_size * 8) / ti1 / 1000.0;
+    avg_bitrate = (double)(e->data_size * 8) / ti1 / 1000.0;
    fprintf(vstats_file, "s_size= %8.0fKiB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
-           (double)ep->data_size / 1024, ti1, bitrate, avg_bitrate);
+           (double)e->data_size / 1024, ti1, bitrate, avg_bitrate);
    fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(pict_type));
    return 0;
@ -620,8 +598,7 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
                        AVPacket *pkt)
 {
    Encoder            *e = ost->enc;
-    EncoderPriv       *ep = ep_from_enc(e);
+    AVCodecContext   *enc = ost->enc_ctx;
    AVCodecContext   *enc = e->enc_ctx;
    const char *type_desc = av_get_media_type_string(enc->codec_type);
    const char    *action = frame ? "encode" : "flush";
    int ret;
@ -636,13 +613,13 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
        if (ost->enc_stats_pre.io)
            enc_stats_write(ost, &ost->enc_stats_pre, frame, NULL,
-                            e->frames_encoded);
+                            ost->frames_encoded);
-        e->frames_encoded++;
+        ost->frames_encoded++;
-        e->samples_encoded += frame->nb_samples;
+        ost->samples_encoded += frame->nb_samples;
        if (debug_ts) {
-            av_log(e, AV_LOG_INFO, "encoder <- type:%s "
+            av_log(ost, AV_LOG_INFO, "encoder <- type:%s "
                   "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
                   type_desc,
                   av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
@ -657,7 +634,7 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
    ret = avcodec_send_frame(enc, frame);
    if (ret < 0 && !(ret == AVERROR_EOF && !frame)) {
-        av_log(e, AV_LOG_ERROR, "Error submitting %s frame to the encoder\n",
+        av_log(ost, AV_LOG_ERROR, "Error submitting %s frame to the encoder\n",
               type_desc);
        return ret;
    }
@ -682,7 +659,7 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
            return 0;
        } else if (ret < 0) {
            if (ret != AVERROR_EOF)
-                av_log(e, AV_LOG_ERROR, "%s encoding failed\n", type_desc);
+                av_log(ost, AV_LOG_ERROR, "%s encoding failed\n", type_desc);
            return ret;
        }
@ -693,7 +670,7 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
        // attach stream parameters to first packet if requested
        avcodec_parameters_free(&fd->par_enc);
-        if (ep->attach_par && !ep->packets_encoded) {
+        if (e->attach_par && !e->packets_encoded) {
            fd->par_enc = avcodec_parameters_alloc();
            if (!fd->par_enc)
                return AVERROR(ENOMEM);
@ -713,10 +690,10 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
        if (ost->enc_stats_post.io)
            enc_stats_write(ost, &ost->enc_stats_post, NULL, pkt,
-                            ep->packets_encoded);
+                            e->packets_encoded);
        if (debug_ts) {
-            av_log(e, AV_LOG_INFO, "encoder -> type:%s "
+            av_log(ost, AV_LOG_INFO, "encoder -> type:%s "
                   "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s "
                   "duration:%s duration_time:%s\n",
                   type_desc,
@ -725,11 +702,11 @@ static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
                   av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &enc->time_base));
        }
-        ep->data_size += pkt->size;
+        e->data_size += pkt->size;
-        ep->packets_encoded++;
+        e->packets_encoded++;
-        ret = sch_enc_send(ep->sch, ep->sch_idx, pkt);
+        ret = sch_enc_send(e->sch, e->sch_idx, pkt);
        if (ret < 0) {
            av_packet_unref(pkt);
            return ret;
@ -787,7 +764,6 @@ force_keyframe:
 static int frame_encode(OutputStream *ost, AVFrame *frame, AVPacket *pkt)
 {
    Encoder *e = ost->enc;
    OutputFile *of = ost->file;
    enum AVMediaType type = ost->type;
@ -805,8 +781,8 @@ static int frame_encode(OutputStream *ost, AVFrame *frame, AVPacket *pkt)
            return AVERROR_EOF;
        if (type == AVMEDIA_TYPE_VIDEO) {
-            frame->quality   = e->enc_ctx->global_quality;
+            frame->quality   = ost->enc_ctx->global_quality;
-            frame->pict_type = forced_kf_apply(e, &ost->kf, frame);
+            frame->pict_type = forced_kf_apply(ost, &ost->kf, frame);
 #if FFMPEG_OPT_TOP
            if (ost->top_field_first >= 0) {
@ -815,9 +791,9 @@ static int frame_encode(OutputStream *ost, AVFrame *frame, AVPacket *pkt)
            }
 #endif
        } else {
-            if (!(e->enc_ctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
+            if (!(ost->enc_ctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
-                e->enc_ctx->ch_layout.nb_channels != frame->ch_layout.nb_channels) {
+                ost->enc_ctx->ch_layout.nb_channels != frame->ch_layout.nb_channels) {
-                av_log(e, AV_LOG_ERROR,
+                av_log(ost, AV_LOG_ERROR,
                       "Audio channel count changed and encoder does not support parameter changes\n");
                return 0;
            }
@ -831,7 +807,7 @@ static void enc_thread_set_name(const OutputStream *ost)
 {
    char name[16];
    snprintf(name, sizeof(name), "enc%d:%d:%s", ost->file->index, ost->index,
-             ost->enc->enc_ctx->codec->name);
+             ost->enc_ctx->codec->name);
    ff_thread_setname(name);
 }
@ -866,7 +842,6 @@ int encoder_thread(void *arg)
 {
    OutputStream *ost = arg;
    Encoder        *e = ost->enc;
    EncoderPriv   *ep = ep_from_enc(e);
    EncoderThread et;
    int ret = 0, input_status = 0;
    int name_set = 0;
@ -889,17 +864,17 @@ int encoder_thread(void *arg)
    }
    while (!input_status) {
-        input_status = sch_enc_receive(ep->sch, ep->sch_idx, et.frame);
+        input_status = sch_enc_receive(e->sch, e->sch_idx, et.frame);
        if (input_status < 0) {
            if (input_status == AVERROR_EOF) {
-                av_log(e, AV_LOG_VERBOSE, "Encoder thread received EOF\n");
+                av_log(ost, AV_LOG_VERBOSE, "Encoder thread received EOF\n");
-                if (ep->opened)
+                if (e->opened)
                    break;
-                av_log(e, AV_LOG_ERROR, "Could not open encoder before EOF\n");
+                av_log(ost, AV_LOG_ERROR, "Could not open encoder before EOF\n");
                ret = AVERROR(EINVAL);
            } else {
-                av_log(e, AV_LOG_ERROR, "Error receiving a frame for encoding: %s\n",
+                av_log(ost, AV_LOG_ERROR, "Error receiving a frame for encoding: %s\n",
                       av_err2str(ret));
                ret = input_status;
            }
@ -918,9 +893,9 @@ int encoder_thread(void *arg)
        if (ret < 0) {
            if (ret == AVERROR_EOF)
-                av_log(e, AV_LOG_VERBOSE, "Encoder returned EOF, finishing\n");
+                av_log(ost, AV_LOG_VERBOSE, "Encoder returned EOF, finishing\n");
            else
-                av_log(e, AV_LOG_ERROR, "Error encoding a frame: %s\n",
+                av_log(ost, AV_LOG_ERROR, "Error encoding a frame: %s\n",
                       av_err2str(ret));
            break;
        }
@ -930,7 +905,7 @@ int encoder_thread(void *arg)
    if (ret == 0 || ret == AVERROR_EOF) {
        ret = frame_encode(ost, NULL, et.pkt);
        if (ret < 0 && ret != AVERROR_EOF)
-            av_log(e, AV_LOG_ERROR, "Error flushing encoder: %s\n",
+            av_log(ost, AV_LOG_ERROR, "Error flushing encoder: %s\n",
                   av_err2str(ret));
    }
@ -946,7 +921,6 @@ finish:
 int enc_loopback(Encoder *enc)
 {
-    EncoderPriv *ep = ep_from_enc(enc);
+    enc->attach_par = 1;
-    ep->attach_par = 1;
+    return enc->sch_idx;
    return ep->sch_idx;
 }
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@ -581,9 +581,9 @@ static int bsf_init(MuxStream *ms)
    int ret;
    if (!ctx)
-        return avcodec_parameters_copy(ost->st->codecpar, ms->par_in);
+        return avcodec_parameters_copy(ost->st->codecpar, ost->par_in);
-    ret = avcodec_parameters_copy(ctx->par_in, ms->par_in);
+    ret = avcodec_parameters_copy(ctx->par_in, ost->par_in);
    if (ret < 0)
        return ret;
@ -608,29 +608,12 @@ static int bsf_init(MuxStream *ms)
    return 0;
 }
-int of_stream_init(OutputFile *of, OutputStream *ost,
+int of_stream_init(OutputFile *of, OutputStream *ost)
                   const AVCodecContext *enc_ctx)
 {
    Muxer *mux = mux_from_of(of);
    MuxStream *ms = ms_from_ost(ost);
    int ret;
    if (enc_ctx) {
        // use upstream time base unless it has been overridden previously
        if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
            ost->st->time_base = av_add_q(enc_ctx->time_base, (AVRational){0, 1});
        ost->st->avg_frame_rate = enc_ctx->framerate;
        ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio;
        ret = avcodec_parameters_from_context(ms->par_in, enc_ctx);
        if (ret < 0) {
            av_log(ost, AV_LOG_FATAL,
                   "Error initializing the output stream codec parameters.\n");
            return ret;
        }
    }
    /* initialize bitstream filters for the output stream
     * needs to be done here, because the codec id for streamcopy is not
     * known until now */
@ -661,8 +644,8 @@ static int check_written(OutputFile *of)
        total_packets_written += packets_written;
-        if (ost->enc &&
+        if (ost->enc_ctx &&
-            (ost->enc->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
+            (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
             != AV_CODEC_FLAG_PASS1)
            pass1_used = 0;
@ -723,9 +706,9 @@ static void mux_final_stats(Muxer *mux)
               of->index, j, av_get_media_type_string(type));
        if (ost->enc) {
            av_log(of, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
-                   ost->enc->frames_encoded);
+                   ost->frames_encoded);
            if (type == AVMEDIA_TYPE_AUDIO)
-                av_log(of, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->enc->samples_encoded);
+                av_log(of, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
            av_log(of, AV_LOG_VERBOSE, "; ");
        }
@ -823,7 +806,7 @@ static void ost_free(OutputStream **post)
        ost->logfile = NULL;
    }
-    avcodec_parameters_free(&ms->par_in);
+    avcodec_parameters_free(&ost->par_in);
    av_bsf_free(&ms->bsf_ctx);
    av_packet_free(&ms->bsf_pkt);
@ -837,6 +820,10 @@ static void ost_free(OutputStream **post)
    av_freep(&ost->attachment_filename);
    if (ost->enc_ctx)
        av_freep(&ost->enc_ctx->stats_in);
    avcodec_free_context(&ost->enc_ctx);
    enc_stats_uninit(&ost->enc_stats_pre);
    enc_stats_uninit(&ost->enc_stats_post);
    enc_stats_uninit(&ms->stats);
--- a/fftools/ffmpeg_mux.h
+++ b/fftools/ffmpeg_mux.h
@ -36,12 +36,6 @@
 typedef struct MuxStream {
    OutputStream    ost;
    /**
     * Codec parameters for packets submitted to the muxer (i.e. before
     * bitstream filtering, if any).
     */
    AVCodecParameters *par_in;
    // name used for logging
    char            log_name[32];
@ -85,10 +79,6 @@ typedef struct MuxStream {
    int             ts_drop;
 #endif
    AVRational      frame_rate;
    AVRational      max_frame_rate;
    int             force_fps;
    const char     *apad;
 } MuxStream;
@ -123,7 +113,7 @@ typedef struct Muxer {
 int mux_check_init(void *arg);
-static inline MuxStream *ms_from_ost(OutputStream *ost)
+static MuxStream *ms_from_ost(OutputStream *ost)
 {
    return (MuxStream*)ost;
 }
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@ -67,9 +67,8 @@ static int check_opt_bitexact(void *ctx, const AVDictionary *opts,
 }
 static int choose_encoder(const OptionsContext *o, AVFormatContext *s,
-                          MuxStream *ms, const AVCodec **enc)
+                          OutputStream *ost, const AVCodec **enc)
 {
    OutputStream     *ost = &ms->ost;
    enum AVMediaType type = ost->type;
    const char *codec_name = NULL;
@ -91,20 +90,20 @@ static int choose_encoder(const OptionsContext *o, AVFormatContext *s,
    }
    if (!codec_name) {
-        ms->par_in->codec_id = av_guess_codec(s->oformat, NULL, s->url, NULL, ost->type);
+        ost->par_in->codec_id = av_guess_codec(s->oformat, NULL, s->url, NULL, ost->type);
-        *enc = avcodec_find_encoder(ms->par_in->codec_id);
+        *enc = avcodec_find_encoder(ost->par_in->codec_id);
        if (!*enc) {
            av_log(ost, AV_LOG_FATAL, "Automatic encoder selection failed "
                   "Default encoder for format %s (codec %s) is "
                   "probably disabled. Please choose an encoder manually.\n",
-                    s->oformat->name, avcodec_get_name(ms->par_in->codec_id));
+                    s->oformat->name, avcodec_get_name(ost->par_in->codec_id));
            return AVERROR_ENCODER_NOT_FOUND;
        }
    } else if (strcmp(codec_name, "copy")) {
        int ret = find_codec(ost, codec_name, ost->type, 1, enc);
        if (ret < 0)
            return ret;
-        ms->par_in->codec_id = (*enc)->id;
+        ost->par_in->codec_id = (*enc)->id;
    }
    return 0;
@ -424,6 +423,27 @@ static int ost_get_filters(const OptionsContext *o, AVFormatContext *oc,
 #endif
    opt_match_per_stream_str(ost, &o->filters, oc, ost->st, &filters);
    if (!ost->enc) {
        if (
 #if FFMPEG_OPT_FILTER_SCRIPT
            filters_script ||
 #endif
            filters) {
            av_log(ost, AV_LOG_ERROR,
                   "%s '%s' was specified, but codec copy was selected. "
                   "Filtering and streamcopy cannot be used together.\n",
 #if FFMPEG_OPT_FILTER_SCRIPT
                   filters ? "Filtergraph" : "Filtergraph script",
                   filters ? filters : filters_script
 #else
                   "Filtergraph", filters
 #endif
                   );
            return AVERROR(ENOSYS);
        }
        return 0;
    }
    if (!ost->ist) {
        if (
 #if FFMPEG_OPT_FILTER_SCRIPT
@ -534,7 +554,7 @@ static enum AVPixelFormat pix_fmt_parse(OutputStream *ost, const char *name)
        return AV_PIX_FMT_NONE;
    }
-    ret = avcodec_get_supported_config(ost->enc->enc_ctx, NULL, AV_CODEC_CONFIG_PIX_FORMAT,
+    ret = avcodec_get_supported_config(ost->enc_ctx, NULL, AV_CODEC_CONFIG_PIX_FORMAT,
                                       0, (const void **) &fmts, NULL);
    if (ret < 0)
        return AV_PIX_FMT_NONE;
@ -566,7 +586,7 @@ static enum AVPixelFormat pix_fmt_parse(OutputStream *ost, const char *name)
    }
    if (fmts && !fmt_in_list(fmts, fmt))
-        fmt = choose_pixel_fmt(ost->enc->enc_ctx, fmt);
+        fmt = choose_pixel_fmt(ost->enc_ctx, fmt);
    return fmt;
 }
@ -584,13 +604,13 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
    st  = ost->st;
    opt_match_per_stream_str(ost, &o->frame_rates, oc, st, &frame_rate);
-    if (frame_rate && av_parse_video_rate(&ms->frame_rate, frame_rate) < 0) {
+    if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
        av_log(ost, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
        return AVERROR(EINVAL);
    }
    opt_match_per_stream_str(ost, &o->max_frame_rates, oc, st, &max_frame_rate);
-    if (max_frame_rate && av_parse_video_rate(&ms->max_frame_rate, max_frame_rate) < 0) {
+    if (max_frame_rate && av_parse_video_rate(&ost->max_frame_rate, max_frame_rate) < 0) {
        av_log(ost, AV_LOG_FATAL, "Invalid maximum framerate value: %s\n", max_frame_rate);
        return AVERROR(EINVAL);
    }
@ -611,8 +631,8 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
        ost->frame_aspect_ratio = q;
    }
-    if (ost->enc) {
+    if (ost->enc_ctx) {
-        AVCodecContext *video_enc = ost->enc->enc_ctx;
+        AVCodecContext *video_enc = ost->enc_ctx;
        const char *p = NULL, *fps_mode = NULL;
        const char *frame_size = NULL;
        const char *frame_pix_fmt = NULL;
@ -725,10 +745,10 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
                     ost->logfile_prefix ? ost->logfile_prefix :
                                           DEFAULT_PASS_LOGFILENAME_PREFIX,
                     ost_idx);
-            if (!strcmp(video_enc->codec->name, "libx264") || !strcmp(video_enc->codec->name, "libvvenc")) {
+            if (!strcmp(ost->enc_ctx->codec->name, "libx264") || !strcmp(ost->enc_ctx->codec->name, "libvvenc")) {
-                if (av_opt_is_set_to_default_by_name(video_enc, "stats",
+                if (av_opt_is_set_to_default_by_name(ost->enc_ctx, "stats",
                                                     AV_OPT_SEARCH_CHILDREN) > 0)
-                    av_opt_set(video_enc, "stats", logfilename,
+                    av_opt_set(ost->enc_ctx, "stats", logfilename,
                               AV_OPT_SEARCH_CHILDREN);
            } else {
                if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
@ -754,7 +774,7 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
            }
        }
-        opt_match_per_stream_int(ost, &o->force_fps, oc, st, &ms->force_fps);
+        opt_match_per_stream_int(ost, &o->force_fps, oc, st, &ost->force_fps);
 #if FFMPEG_OPT_TOP
        ost->top_field_first = -1;
@ -775,7 +795,7 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
                return ret;
        }
-        if ((ms->frame_rate.num || ms->max_frame_rate.num) &&
+        if ((ost->frame_rate.num || ost->max_frame_rate.num) &&
            !(*vsync_method == VSYNC_AUTO ||
              *vsync_method == VSYNC_CFR || *vsync_method == VSYNC_VSCFR)) {
            av_log(ost, AV_LOG_FATAL, "One of -r/-fpsmax was specified "
@ -784,7 +804,7 @@ static int new_stream_video(Muxer *mux, const OptionsContext *o,
        }
        if (*vsync_method == VSYNC_AUTO) {
-            if (ms->frame_rate.num || ms->max_frame_rate.num) {
+            if (ost->frame_rate.num || ost->max_frame_rate.num) {
                *vsync_method = VSYNC_CFR;
            } else if (!strcmp(oc->oformat->name, "avi")) {
                *vsync_method = VSYNC_VFR;
@ -821,8 +841,8 @@ static int new_stream_audio(Muxer *mux, const OptionsContext *o,
    AVFormatContext *oc = mux->fc;
    AVStream *st = ost->st;
-    if (ost->enc) {
+    if (ost->enc_ctx) {
-        AVCodecContext *audio_enc = ost->enc->enc_ctx;
+        AVCodecContext *audio_enc = ost->enc_ctx;
        int channels = 0;
        const char *layout = NULL;
        const char *sample_fmt = NULL;
@ -860,8 +880,8 @@ static int new_stream_subtitle(Muxer *mux, const OptionsContext *o,
    st  = ost->st;
-    if (ost->enc) {
+    if (ost->enc_ctx) {
-        AVCodecContext *subtitle_enc = ost->enc->enc_ctx;
+        AVCodecContext *subtitle_enc = ost->enc_ctx;
        AVCodecDescriptor const *input_descriptor =
            avcodec_descriptor_get(ost->ist->par->codec_id);
@ -896,16 +916,14 @@ static int new_stream_subtitle(Muxer *mux, const OptionsContext *o,
 static int
 ost_bind_filter(const Muxer *mux, MuxStream *ms, OutputFilter *ofilter,
-                const OptionsContext *o,
+                const OptionsContext *o, char *filters,
                AVRational enc_tb, enum VideoSyncMethod vsync_method,
                int keep_pix_fmt, int autoscale, int threads_manual,
-                const ViewSpecifier *vs,
+                const ViewSpecifier *vs)
                SchedulerNode *src)
 {
    OutputStream       *ost = &ms->ost;
-    AVCodecContext *enc_ctx = ost->enc->enc_ctx;
+    AVCodecContext *enc_ctx = ost->enc_ctx;
    char name[16];
    char *filters = NULL;
    int ret;
    OutputFilterOptions opts = {
@ -918,8 +936,6 @@ ost_bind_filter(const Muxer *mux, MuxStream *ms, OutputFilter *ofilter,
        .color_space      = enc_ctx->colorspace,
        .color_range      = enc_ctx->color_range,
        .vsync_method     = vsync_method,
        .frame_rate       = ms->frame_rate,
        .max_frame_rate   = ms->max_frame_rate,
        .sample_rate      = enc_ctx->sample_rate,
        .ch_layout        = enc_ctx->ch_layout,
        .sws_opts         = o->g->sws_dict,
@ -930,7 +946,6 @@ ost_bind_filter(const Muxer *mux, MuxStream *ms, OutputFilter *ofilter,
        .ts_offset        = mux->of.start_time == AV_NOPTS_VALUE ?
                            0 : mux->of.start_time,
        .vs               = vs,
        .nb_threads       = -1,
        .flags = OFILTER_FLAG_DISABLE_CONVERT * !!keep_pix_fmt |
                 OFILTER_FLAG_AUTOSCALE       * !!autoscale    |
@ -947,7 +962,7 @@ ost_bind_filter(const Muxer *mux, MuxStream *ms, OutputFilter *ofilter,
            if (ret < 0)
                return ret;
        }
-        if (!ms->force_fps) {
+        if (!ost->force_fps) {
            ret = avcodec_get_supported_config(enc_ctx, NULL,
                                               AV_CODEC_CONFIG_FRAME_RATE, 0,
                                               (const void **) &opts.frame_rates, NULL);
@ -983,77 +998,46 @@ ost_bind_filter(const Muxer *mux, MuxStream *ms, OutputFilter *ofilter,
    }
    if (threads_manual) {
-        ret = av_opt_get_int(enc_ctx, "threads", 0, &opts.nb_threads);
+        ret = av_opt_get(enc_ctx, "threads", 0, (uint8_t**)&opts.nb_threads);
        if (ret < 0)
            return ret;
    }
    ret = ost_get_filters(o, mux->fc, ost, &filters);
    if (ret < 0)
        return ret;
    if (ofilter) {
        av_assert0(!filters);
        ost->filter = ofilter;
-        ret = ofilter_bind_enc(ofilter, ms->sch_idx_enc, &opts);
+        ret = ofilter_bind_ost(ofilter, ost, ms->sch_idx_enc, &opts);
    } else {
-        ret = fg_create_simple(&ost->fg_simple, ost->ist, filters,
+        ret = init_simple_filtergraph(ost->ist, ost, filters,
-                               mux->sch, ms->sch_idx_enc, &opts);
+                                      mux->sch, ms->sch_idx_enc, &opts);
        if (ret >= 0)
            ost->filter = ost->fg_simple->outputs[0];
    }
    av_freep(&opts.nb_threads);
    if (ret < 0)
        return ret;
-    *src = SCH_ENC(ms->sch_idx_enc);
+    ret = sch_connect(mux->sch, SCH_ENC(ms->sch_idx_enc),
                                SCH_MSTREAM(mux->sch_idx, ms->sch_idx));
    if (ret < 0)
        return ret;
-    return 0;
+    return ret;
 }
-static int streamcopy_init(const OptionsContext *o, const Muxer *mux,
+static int streamcopy_init(const Muxer *mux, OutputStream *ost, AVDictionary **encoder_opts)
                           OutputStream *ost, AVDictionary **encoder_opts)
 {
    MuxStream           *ms         = ms_from_ost(ost);
    const InputStream   *ist        = ost->ist;
    const InputFile     *ifile      = ist->file;
-    AVCodecParameters   *par        = ms->par_in;
+    AVCodecParameters   *par        = ost->par_in;
    uint32_t             codec_tag  = par->codec_tag;
    AVCodecContext      *codec_ctx  = NULL;
-    AVRational           fr         = ms->frame_rate;
+    AVRational           fr         = ost->frame_rate;
    int ret = 0;
    const char *filters = NULL;
 #if FFMPEG_OPT_FILTER_SCRIPT
    const char *filters_script = NULL;
    opt_match_per_stream_str(ost, &o->filter_scripts, mux->fc, ost->st, &filters_script);
 #endif
    opt_match_per_stream_str(ost, &o->filters, mux->fc, ost->st, &filters);
    if (
 #if FFMPEG_OPT_FILTER_SCRIPT
        filters_script ||
 #endif
        filters) {
        av_log(ost, AV_LOG_ERROR,
               "%s '%s' was specified, but codec copy was selected. "
               "Filtering and streamcopy cannot be used together.\n",
 #if FFMPEG_OPT_FILTER_SCRIPT
               filters ? "Filtergraph" : "Filtergraph script",
               filters ? filters : filters_script
 #else
               "Filtergraph", filters
 #endif
               );
        return AVERROR(EINVAL);
    }
    codec_ctx = avcodec_alloc_context3(NULL);
    if (!codec_ctx)
        return AVERROR(ENOMEM);
@ -1155,28 +1139,6 @@ fail:
    return ret;
 }
 static int set_encoder_id(OutputStream *ost, const AVCodec *codec)
 {
    const char *cname = codec->name;
    uint8_t *encoder_string;
    int encoder_string_len;
    encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(cname) + 2;
    encoder_string     = av_mallocz(encoder_string_len);
    if (!encoder_string)
        return AVERROR(ENOMEM);
    if (!ost->file->bitexact && !ost->bitexact)
        av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
    else
        av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
    av_strlcat(encoder_string, cname, encoder_string_len);
    av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
                AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
    return 0;
 }
 static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
                   InputStream *ist, OutputFilter *ofilter, const ViewSpecifier *vs,
                   OutputStream **post)
@ -1186,14 +1148,13 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    OutputStream *ost;
    const AVCodec *enc;
    AVStream *st;
    SchedulerNode src = { .type = SCH_NODE_TYPE_NONE };
    AVDictionary *encoder_opts = NULL;
    int ret = 0, keep_pix_fmt = 0, autoscale = 1;
    int threads_manual = 0;
    AVRational enc_tb = { 0, 0 };
    enum VideoSyncMethod vsync_method = VSYNC_AUTO;
    const char *bsfs = NULL, *time_base = NULL, *codec_tag = NULL;
-    char  *next;
+    char *filters = NULL, *next;
    double qscale = -1;
    st = avformat_new_stream(oc, NULL);
@ -1237,8 +1198,8 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
        }
    }
-    ms->par_in = avcodec_parameters_alloc();
+    ost->par_in = avcodec_parameters_alloc();
-    if (!ms->par_in)
+    if (!ost->par_in)
        return AVERROR(ENOMEM);
    ms->last_mux_dts = AV_NOPTS_VALUE;
@ -1246,23 +1207,27 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    ost->st         = st;
    ost->ist        = ist;
    ost->kf.ref_pts = AV_NOPTS_VALUE;
-    ms->par_in->codec_type   = type;
+    ost->par_in->codec_type  = type;
    st->codecpar->codec_type = type;
-    ret = choose_encoder(o, oc, ms, &enc);
+    ret = choose_encoder(o, oc, ost, &enc);
    if (ret < 0) {
        av_log(ost, AV_LOG_FATAL, "Error selecting an encoder\n");
        return ret;
    }
    if (enc) {
        ost->enc_ctx = avcodec_alloc_context3(enc);
        if (!ost->enc_ctx)
            return AVERROR(ENOMEM);
        ret = sch_add_enc(mux->sch, encoder_thread, ost,
                          ost->type == AVMEDIA_TYPE_SUBTITLE ? NULL : enc_open);
        if (ret < 0)
            return ret;
        ms->sch_idx_enc = ret;
-        ret = enc_alloc(&ost->enc, enc, mux->sch, ms->sch_idx_enc, ost);
+        ret = enc_alloc(&ost->enc, enc, mux->sch, ms->sch_idx_enc);
        if (ret < 0)
            return ret;
@ -1297,21 +1262,21 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    if (!ms->pkt)
        return AVERROR(ENOMEM);
-    if (ost->enc) {
+    if (ost->enc_ctx) {
        AVIOContext *s = NULL;
        char *buf = NULL, *arg = NULL;
        const char *enc_stats_pre = NULL, *enc_stats_post = NULL, *mux_stats = NULL;
        const char *enc_time_base = NULL, *preset = NULL;
-        ret = filter_codec_opts(o->g->codec_opts, enc->id,
+        ret = filter_codec_opts(o->g->codec_opts, ost->enc_ctx->codec_id,
-                                oc, st, enc, &encoder_opts,
+                                oc, st, ost->enc_ctx->codec, &encoder_opts,
                                &mux->enc_opts_used);
        if (ret < 0)
            goto fail;
        opt_match_per_stream_str(ost, &o->presets, oc, st, &preset);
        opt_match_per_stream_int(ost, &o->autoscale, oc, st, &autoscale);
-        if (preset && (!(ret = get_preset_file_2(preset, enc->name, &s)))) {
+        if (preset && (!(ret = get_preset_file_2(preset, ost->enc_ctx->codec->name, &s)))) {
            AVBPrint bprint;
            av_bprint_init(&bprint, 0, AV_BPRINT_SIZE_UNLIMITED);
            do  {
@ -1411,7 +1376,7 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
        threads_manual = !!av_dict_get(encoder_opts, "threads", NULL, 0);
-        ret = av_opt_set_dict2(ost->enc->enc_ctx, &encoder_opts, AV_OPT_SEARCH_CHILDREN);
+        ret = av_opt_set_dict2(ost->enc_ctx, &encoder_opts, AV_OPT_SEARCH_CHILDREN);
        if (ret < 0) {
            av_log(ost, AV_LOG_ERROR, "Error applying encoder options: %s\n",
                   av_err2str(ret));
@ -1424,7 +1389,7 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
        // default to automatic thread count
        if (!threads_manual)
-            ost->enc->enc_ctx->thread_count = 0;
+            ost->enc_ctx->thread_count = 0;
    } else {
        ret = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st,
                                NULL, &encoder_opts,
@ -1436,14 +1401,8 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    if (o->bitexact) {
        ost->bitexact        = 1;
-    } else if (ost->enc) {
+    } else if (ost->enc_ctx) {
-        ost->bitexact        = !!(ost->enc->enc_ctx->flags & AV_CODEC_FLAG_BITEXACT);
+        ost->bitexact        = !!(ost->enc_ctx->flags & AV_CODEC_FLAG_BITEXACT);
    }
    if (enc) {
        ret = set_encoder_id(ost, enc);
        if (ret < 0)
            return ret;
    }
    opt_match_per_stream_str(ost, &o->time_bases, oc, st, &time_base);
@ -1488,15 +1447,15 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
            tag = AV_RL32(buf);
        }
        ost->st->codecpar->codec_tag = tag;
-        ms->par_in->codec_tag = tag;
+        ost->par_in->codec_tag = tag;
-        if (ost->enc)
+        if (ost->enc_ctx)
-            ost->enc->enc_ctx->codec_tag = tag;
+            ost->enc_ctx->codec_tag = tag;
    }
    opt_match_per_stream_dbl(ost, &o->qscale, oc, st, &qscale);
-    if (ost->enc && qscale >= 0) {
+    if (ost->enc_ctx && qscale >= 0) {
-        ost->enc->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
+        ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
-        ost->enc->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
+        ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
    }
    if (ms->sch_idx >= 0) {
@ -1518,8 +1477,8 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    opt_match_per_stream_int(ost, &o->fix_sub_duration_heartbeat,
                             oc, st, &ost->fix_sub_duration_heartbeat);
-    if (oc->oformat->flags & AVFMT_GLOBALHEADER && ost->enc)
+    if (oc->oformat->flags & AVFMT_GLOBALHEADER && ost->enc_ctx)
-        ost->enc->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+        ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    opt_match_per_stream_int(ost, &o->copy_initial_nonkeyframes,
                             oc, st, &ms->copy_initial_nonkeyframes);
@ -1531,43 +1490,48 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
    if (ret < 0)
        goto fail;
    if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO) {
        ret = ost_get_filters(o, oc, ost, &filters);
        if (ret < 0)
            goto fail;
    }
    if (ost->enc &&
        (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)) {
-        ret = ost_bind_filter(mux, ms, ofilter, o, enc_tb, vsync_method,
+        ret = ost_bind_filter(mux, ms, ofilter, o, filters, enc_tb, vsync_method,
-                              keep_pix_fmt, autoscale, threads_manual, vs, &src);
+                              keep_pix_fmt, autoscale, threads_manual, vs);
        if (ret < 0)
            goto fail;
    } else if (ost->ist) {
-        ret = ist_use(ost->ist, !!ost->enc, NULL, &src);
+        int sched_idx = ist_output_add(ost->ist, ost);
-        if (ret < 0) {
+        if (sched_idx < 0) {
            av_log(ost, AV_LOG_ERROR,
                   "Error binding an input stream\n");
            ret = sched_idx;
            goto fail;
        }
-        ms->sch_idx_src = src.idx;
+        ms->sch_idx_src = sched_idx;
        // src refers to a decoder for transcoding, demux stream otherwise
        if (ost->enc) {
-            ret = sch_connect(mux->sch,
+            ret = sch_connect(mux->sch, SCH_DEC_OUT(sched_idx, 0),
-                              src, SCH_ENC(ms->sch_idx_enc));
+                                        SCH_ENC(ms->sch_idx_enc));
            if (ret < 0)
                goto fail;
            src = SCH_ENC(ms->sch_idx_enc);
        }
    }
-    if (src.type != SCH_NODE_TYPE_NONE) {
+            ret = sch_connect(mux->sch, SCH_ENC(ms->sch_idx_enc),
-        ret = sch_connect(mux->sch,
+                                        SCH_MSTREAM(mux->sch_idx, ms->sch_idx));
-                          src, SCH_MSTREAM(mux->sch_idx, ms->sch_idx));
+            if (ret < 0)
-        if (ret < 0)
+                goto fail;
-            goto fail;
+        } else {
-    } else {
+            ret = sch_connect(mux->sch, SCH_DSTREAM(ost->ist->file->index, sched_idx),
-        // only attachment streams don't have a source
+                                        SCH_MSTREAM(ost->file->index, ms->sch_idx));
-        av_assert0(type == AVMEDIA_TYPE_ATTACHMENT && ms->sch_idx < 0);
+            if (ret < 0)
                goto fail;
        }
    }
    if (ost->ist && !ost->enc) {
-        ret = streamcopy_init(o, mux, ost, &encoder_opts);
+        ret = streamcopy_init(mux, ost, &encoder_opts);
        if (ret < 0)
            goto fail;
    }
@ -1593,7 +1557,7 @@ static int map_auto_video(Muxer *mux, const OptionsContext *o)
 {
    AVFormatContext *oc = mux->fc;
    InputStream *best_ist = NULL;
-    int64_t best_score = 0;
+    int best_score = 0;
    int qcr;
    /* video: highest resolution */
@ -1604,16 +1568,16 @@ static int map_auto_video(Muxer *mux, const OptionsContext *o)
    for (int j = 0; j < nb_input_files; j++) {
        InputFile *ifile = input_files[j];
        InputStream *file_best_ist = NULL;
-        int64_t file_best_score = 0;
+        int file_best_score = 0;
        for (int i = 0; i < ifile->nb_streams; i++) {
            InputStream *ist = ifile->streams[i];
-            int64_t score;
+            int score;
            if (ist->user_set_discard == AVDISCARD_ALL ||
                ist->st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
                continue;
-            score = ist->st->codecpar->width * (int64_t)ist->st->codecpar->height
+            score = ist->st->codecpar->width * ist->st->codecpar->height
                       + 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
                       + 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
            if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
@ -1835,7 +1799,6 @@ loop_end:
 static int of_add_attachments(Muxer *mux, const OptionsContext *o)
 {
    MuxStream *ms;
    OutputStream *ost;
    int err;
@ -1903,11 +1866,9 @@ read_fail:
            return err;
        }
        ms = ms_from_ost(ost);
        ost->attachment_filename       = attachment_filename;
-        ms->par_in->extradata          = attachment;
+        ost->par_in->extradata         = attachment;
-        ms->par_in->extradata_size     = len;
+        ost->par_in->extradata_size    = len;
        p = strrchr(o->attachments[i], '/');
        av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
@ -2048,7 +2009,7 @@ static int setup_sync_queues(Muxer *mux, AVFormatContext *oc,
    int limit_frames = 0, limit_frames_av_enc = 0;
 #define IS_AV_ENC(ost, type)  \
-    (ost->enc && (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO))
+    (ost->enc_ctx && (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO))
 #define IS_INTERLEAVED(type) (type != AVMEDIA_TYPE_ATTACHMENT)
    for (int i = 0; i < oc->nb_streams; i++) {
@ -2060,8 +2021,8 @@ static int setup_sync_queues(Muxer *mux, AVFormatContext *oc,
        nb_interleaved += IS_INTERLEAVED(type);
        nb_av_enc      += IS_AV_ENC(ost, type);
-        nb_audio_fs    += (ost->enc && type == AVMEDIA_TYPE_AUDIO &&
+        nb_audio_fs    += (ost->enc_ctx && type == AVMEDIA_TYPE_AUDIO &&
-                           !(ost->enc->enc_ctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE));
+                           !(ost->enc_ctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE));
        limit_frames        |=  ms->max_frames < INT64_MAX;
        limit_frames_av_enc |= (ms->max_frames < INT64_MAX) && IS_AV_ENC(ost, type);
@ -3016,6 +2977,9 @@ static int copy_meta(Muxer *mux, const OptionsContext *o)
            if (!ost->ist)         /* this is true e.g. for attached files */
                continue;
            av_dict_copy(&ost->st->metadata, ost->ist->st->metadata, AV_DICT_DONT_OVERWRITE);
            if (ost->enc_ctx) {
                av_dict_set(&ost->st->metadata, "encoder", NULL, 0);
            }
        }
    return 0;
@ -3092,7 +3056,7 @@ finish:
    return ret;
 }
-static const char *const forced_keyframes_const_names[] = {
+const char *const forced_keyframes_const_names[] = {
    "n",
    "n_forced",
    "prev_forced_n",
@ -3194,7 +3158,7 @@ static int process_forced_keyframes(Muxer *mux, const OptionsContext *o)
                                 mux->fc, ost->st, &forced_keyframes);
        if (!(ost->type == AVMEDIA_TYPE_VIDEO &&
-              ost->enc && forced_keyframes))
+              ost->enc_ctx && forced_keyframes))
            continue;
        if (!strncmp(forced_keyframes, "expr:", 5)) {
@ -3421,7 +3385,7 @@ int of_open(const OptionsContext *o, const char *filename, Scheduler *sch)
        OutputStream *ost = of->streams[i];
        if (!ost->enc) {
-            err = of_stream_init(of, ost, NULL);
+            err = of_stream_init(of, ost);
            if (err < 0)
                return err;
        }
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@ -47,12 +47,12 @@
 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"
 #include "libavutil/stereo3d.h"
 #include "graph/graphprint.h"
 HWDevice *filter_hw_device;
 char *vstats_filename;
 float audio_drift_threshold = 0.1;
 float dts_delta_threshold   = 10;
 float dts_error_threshold   = 3600*30;
@ -75,11 +75,7 @@ int stdin_interaction = 1;
 float max_error_rate  = 2.0/3;
 char *filter_nbthreads;
 int filter_complex_nbthreads = 0;
 int filter_buffered_frames = 0;
 int vstats_version = 2;
 int print_graphs = 0;
 char *print_graphs_file = NULL;
 char *print_graphs_format = NULL;
 int auto_conversion_filters = 1;
 int64_t stats_period = 500000;
@ -90,15 +86,6 @@ int ignore_unknown_streams = 0;
 int copy_unknown_streams = 0;
 int recast_media = 0;
 // this struct is passed as the optctx argument
 // to func_arg() for global options
 typedef struct GlobalOptionsContext {
    Scheduler      *sch;
    char          **filtergraphs;
    int          nb_filtergraphs;
 } GlobalOptionsContext;
 static void uninit_options(OptionsContext *o)
 {
    /* all OPT_SPEC and OPT_TYPE_STRING can be freed in generic way */
@ -358,7 +345,7 @@ static void correct_input_start_times(void)
            if (copy_ts && start_at_zero)
                ifile->ts_offset = -new_start_time;
            else if (!copy_ts) {
-                abs_start_seek = is->start_time + ((ifile->start_time != AV_NOPTS_VALUE) ? ifile->start_time : 0);
+                abs_start_seek = is->start_time + (ifile->start_time != AV_NOPTS_VALUE) ? ifile->start_time : 0;
                ifile->ts_offset = abs_start_seek > new_start_time ? -abs_start_seek : -new_start_time;
            } else if (copy_ts)
                ifile->ts_offset = 0;
@ -624,8 +611,8 @@ static int opt_attach(void *optctx, const char *opt, const char *arg)
 static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
 {
-    GlobalOptionsContext *go = optctx;
+    Scheduler *sch = optctx;
-    return sch_sdp_filename(go->sch, arg);
+    return sch_sdp_filename(sch, arg);
 }
 #if CONFIG_VAAPI
@ -1163,46 +1150,26 @@ static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
 {
-    GlobalOptionsContext *go = optctx;
+    Scheduler *sch = optctx;
-    char *graph_desc;
+    char *graph_desc = av_strdup(arg);
    int ret;
    graph_desc = av_strdup(arg);
    if (!graph_desc)
        return AVERROR(ENOMEM);
-    ret = GROW_ARRAY(go->filtergraphs, go->nb_filtergraphs);
+    return fg_create(NULL, graph_desc, sch);
    if (ret < 0) {
        av_freep(&graph_desc);
        return ret;
    }
    go->filtergraphs[go->nb_filtergraphs - 1] = graph_desc;
    return 0;
 }
 #if FFMPEG_OPT_FILTER_SCRIPT
 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
 {
-    GlobalOptionsContext *go = optctx;
+    Scheduler *sch = optctx;
-    char *graph_desc;
+    char *graph_desc = file_read(arg);
    int ret;
    graph_desc = file_read(arg);
    if (!graph_desc)
        return AVERROR(EINVAL);
    av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -/filter_complex %s instead\n",
           opt, arg);
-    ret = GROW_ARRAY(go->filtergraphs, go->nb_filtergraphs);
+    return fg_create(NULL, graph_desc, sch);
    if (ret < 0) {
        av_freep(&graph_desc);
        return ret;
    }
    go->filtergraphs[go->nb_filtergraphs - 1] = graph_desc;
    return 0;
 }
 #endif
@ -1379,7 +1346,6 @@ static int open_files(OptionGroupList *l, const char *inout, Scheduler *sch,
 int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch)
 {
    GlobalOptionsContext go = { .sch = sch };
    OptionParseContext octx;
    const char *errmsg = NULL;
    int ret;
@ -1395,7 +1361,7 @@ int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch)
    }
    /* apply global options */
-    ret = parse_optgroup(&go, &octx.global_opts, options);
+    ret = parse_optgroup(sch, &octx.global_opts, options);
    if (ret < 0) {
        errmsg = "parsing global options";
        goto fail;
@ -1404,14 +1370,6 @@ int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch)
    /* configure terminal and setup signal handlers */
    term_init();
    /* create complex filtergraphs */
    for (int i = 0; i < go.nb_filtergraphs; i++) {
        ret = fg_create(NULL, go.filtergraphs[i], sch);
        go.filtergraphs[i] = NULL;
        if (ret < 0)
            goto fail;
    }
    /* open input files */
    ret = open_files(&octx.groups[GROUP_INFILE], "input", sch, ifile_open);
    if (ret < 0) {
@ -1447,10 +1405,6 @@ int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch)
        goto fail;
 fail:
    for (int i = 0; i < go.nb_filtergraphs; i++)
        av_freep(&go.filtergraphs[i]);
    av_freep(&go.filtergraphs);
    uninit_parse_context(&octx);
    if (ret < 0 && ret != AVERROR_EXIT) {
        av_log(NULL, AV_LOG_FATAL, "Error %s: %s\n",
@ -1512,6 +1466,7 @@ static int opt_adrift_threshold(void *optctx, const char *opt, const char *arg)
 }
 #endif
 static const char *const alt_bsf[]            = { "absf", "vbsf", NULL };
 static const char *const alt_channel_layout[] = { "ch_layout", NULL};
 static const char *const alt_codec[]          = { "c", "acodec", "vcodec", "scodec", "dcodec", NULL };
 static const char *const alt_filter[]         = { "af", "vf", NULL };
@ -1643,9 +1598,6 @@ const OptionDef options[] = {
    { "readrate_initial_burst", OPT_TYPE_DOUBLE, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
        { .off = OFFSET(readrate_initial_burst) },
        "The initial amount of input to burst read before imposing any readrate", "seconds" },
    { "readrate_catchup",       OPT_TYPE_FLOAT, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
        { .off = OFFSET(readrate_catchup) },
        "Temporary readrate used to catch up if an input lags behind the specified readrate", "speed" },
    { "target",                 OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_PERFILE | OPT_EXPERT | OPT_OUTPUT,
        { .func_arg = opt_target },
        "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
@ -1715,9 +1667,6 @@ const OptionDef options[] = {
    { "filter_threads",         OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
        { .func_arg = opt_filter_threads },
        "number of non-complex filter threads" },
    { "filter_buffered_frames", OPT_TYPE_INT, OPT_EXPERT,
        { &filter_buffered_frames },
        "maximum number of buffered frames in a filter graph" },
 #if FFMPEG_OPT_FILTER_SCRIPT
    { "filter_script",          OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
        { .off = OFFSET(filter_scripts) },
@ -1726,9 +1675,6 @@ const OptionDef options[] = {
    { "reinit_filter",          OPT_TYPE_INT, OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
        { .off = OFFSET(reinit_filters) },
        "reinit filtergraph on input parameter changes", "" },
    { "drop_changed",          OPT_TYPE_INT, OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
        { .off = OFFSET(drop_changed) },
        "drop frame instead of reiniting filtergraph on input parameter changes", "" },
    { "filter_complex",         OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
        { .func_arg = opt_filter_complex },
        "create a complex filtergraph", "graph_description" },
@ -1743,15 +1689,6 @@ const OptionDef options[] = {
        { .func_arg = opt_filter_complex_script },
        "deprecated, use -/filter_complex instead", "filename" },
 #endif
    { "print_graphs",   OPT_TYPE_BOOL, 0,
        { &print_graphs },
        "print execution graph data to stderr" },
    { "print_graphs_file", OPT_TYPE_STRING, 0,
        { &print_graphs_file },
        "write execution graph data to the specified file", "filename" },
    { "print_graphs_format", OPT_TYPE_STRING, 0,
        { &print_graphs_format },
      "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml, mermaid, mermaidhtml)", "format" },
    { "auto_conversion_filters", OPT_TYPE_BOOL, OPT_EXPERT,
        { &auto_conversion_filters },
        "enable automatic conversion filters globally" },
--- a/fftools/ffmpeg_sched.c
+++ b/fftools/ffmpeg_sched.c
@ -285,9 +285,8 @@ struct Scheduler {
    pthread_mutex_t     mux_ready_lock;
    unsigned         nb_mux_done;
-    unsigned            task_failed;
+    pthread_mutex_t     mux_done_lock;
-    pthread_mutex_t     finish_lock;
+    pthread_cond_t      mux_done_cond;
    pthread_cond_t      finish_cond;
    SchDec             *dec;
@ -307,6 +306,7 @@ struct Scheduler {
    enum SchedulerState state;
    atomic_int          terminate;
    atomic_int          task_failed;
    pthread_mutex_t     schedule_lock;
@ -375,6 +375,7 @@ static int queue_alloc(ThreadQueue **ptq, unsigned nb_streams, unsigned queue_si
                       enum QueueType type)
 {
    ThreadQueue *tq;
    ObjPool *op;
    if (queue_size <= 0) {
        if (type == QUEUE_FRAMES)
@ -392,11 +393,18 @@ static int queue_alloc(ThreadQueue **ptq, unsigned nb_streams, unsigned queue_si
        av_assert0(queue_size == DEFAULT_FRAME_THREAD_QUEUE_SIZE);
    }
-    tq = tq_alloc(nb_streams, queue_size,
+    op = (type == QUEUE_PACKETS) ? objpool_alloc_packets() :
-                  (type == QUEUE_PACKETS) ? THREAD_QUEUE_PACKETS : THREAD_QUEUE_FRAMES);
+                                   objpool_alloc_frames();
-    if (!tq)
+    if (!op)
        return AVERROR(ENOMEM);
    tq = tq_alloc(nb_streams, queue_size, op,
                  (type == QUEUE_PACKETS) ? pkt_move : frame_move);
    if (!tq) {
        objpool_free(&op);
        return AVERROR(ENOMEM);
    }
    *ptq = tq;
    return 0;
 }
@ -563,8 +571,8 @@ void sch_free(Scheduler **psch)
    pthread_mutex_destroy(&sch->mux_ready_lock);
-    pthread_mutex_destroy(&sch->finish_lock);
+    pthread_mutex_destroy(&sch->mux_done_lock);
-    pthread_cond_destroy(&sch->finish_cond);
+    pthread_cond_destroy(&sch->mux_done_cond);
    av_freep(psch);
 }
@ -594,11 +602,11 @@ Scheduler *sch_alloc(void)
    if (ret)
        goto fail;
-    ret = pthread_mutex_init(&sch->finish_lock, NULL);
+    ret = pthread_mutex_init(&sch->mux_done_lock, NULL);
    if (ret)
        goto fail;
-    ret = pthread_cond_init(&sch->finish_cond, NULL);
+    ret = pthread_cond_init(&sch->mux_done_cond, NULL);
    if (ret)
        goto fail;
@ -1103,52 +1111,22 @@ static int mux_task_start(SchMux *mux)
        return ret;
    /* flush the pre-muxing queues */
-    while (1) {
+    for (unsigned i = 0; i < mux->nb_streams; i++) {
-        int       min_stream = -1;
+        SchMuxStream *ms = &mux->streams[i];
        Timestamp min_ts     = { .ts = AV_NOPTS_VALUE };
        AVPacket *pkt;
-        // find the stream with the earliest dts or EOF in pre-muxing queue
+        while (av_fifo_read(ms->pre_mux_queue.fifo, &pkt, 1) >= 0) {
        for (unsigned i = 0; i < mux->nb_streams; i++) {
            SchMuxStream *ms = &mux->streams[i];
            if (av_fifo_peek(ms->pre_mux_queue.fifo, &pkt, 1, 0) < 0)
                continue;
            if (!pkt || pkt->dts == AV_NOPTS_VALUE) {
                min_stream = i;
                break;
            }
            if (min_ts.ts == AV_NOPTS_VALUE ||
                av_compare_ts(min_ts.ts, min_ts.tb, pkt->dts, pkt->time_base) > 0) {
                min_stream = i;
                min_ts     = (Timestamp){ .ts = pkt->dts, .tb = pkt->time_base };
            }
        }
        if (min_stream >= 0) {
            SchMuxStream *ms = &mux->streams[min_stream];
            ret = av_fifo_read(ms->pre_mux_queue.fifo, &pkt, 1);
            av_assert0(ret >= 0);
            if (pkt) {
                if (!ms->init_eof)
-                    ret = tq_send(mux->queue, min_stream, pkt);
+                    ret = tq_send(mux->queue, i, pkt);
                av_packet_free(&pkt);
                if (ret == AVERROR_EOF)
                    ms->init_eof = 1;
                else if (ret < 0)
                    return ret;
            } else
-                tq_send_finish(mux->queue, min_stream);
+                tq_send_finish(mux->queue, i);
            continue;
        }
        break;
    }
    atomic_store(&mux->mux_started, 1);
@ -1656,27 +1634,29 @@ fail:
 int sch_wait(Scheduler *sch, uint64_t timeout_us, int64_t *transcode_ts)
 {
-    int ret;
+    int ret, err;
    // convert delay to absolute timestamp
    timeout_us += av_gettime();
-    pthread_mutex_lock(&sch->finish_lock);
+    pthread_mutex_lock(&sch->mux_done_lock);
    if (sch->nb_mux_done < sch->nb_mux) {
        struct timespec tv = { .tv_sec  =  timeout_us / 1000000,
                               .tv_nsec = (timeout_us % 1000000) * 1000 };
-        pthread_cond_timedwait(&sch->finish_cond, &sch->finish_lock, &tv);
+        pthread_cond_timedwait(&sch->mux_done_cond, &sch->mux_done_lock, &tv);
    }
-    // abort transcoding if any task failed
+    ret = sch->nb_mux_done == sch->nb_mux;
    ret = sch->nb_mux_done == sch->nb_mux || sch->task_failed;
-    pthread_mutex_unlock(&sch->finish_lock);
+    pthread_mutex_unlock(&sch->mux_done_lock);
    *transcode_ts = atomic_load(&sch->last_dts);
-    return ret;
+    // abort transcoding if any task failed
    err = atomic_load(&sch->task_failed);
    return ret || err;
 }
 static int enc_open(Scheduler *sch, SchEnc *enc, const AVFrame *frame)
@ -1836,7 +1816,7 @@ static int mux_queue_packet(SchMux *mux, SchMuxStream *ms, AVPacket *pkt)
        if (new_size <= packets) {
            av_log(mux, AV_LOG_ERROR,
                   "Too many packets buffered for output stream.\n");
-            return AVERROR_BUFFER_TOO_SMALL;
+            return AVERROR(ENOSPC);
        }
        ret = av_fifo_grow2(q->fifo, new_size - packets);
        if (ret < 0)
@ -1899,7 +1879,7 @@ static int send_to_mux(Scheduler *sch, SchMux *mux, unsigned stream_idx,
 update_schedule:
    // TODO: use atomics to check whether this changes trailing dts
-    // to avoid locking unnecessarily
+    // to avoid locking unnecesarily
    if (dts != AV_NOPTS_VALUE || !pkt) {
        pthread_mutex_lock(&sch->schedule_lock);
@ -2142,14 +2122,14 @@ static int mux_done(Scheduler *sch, unsigned mux_idx)
    pthread_mutex_unlock(&sch->schedule_lock);
-    pthread_mutex_lock(&sch->finish_lock);
+    pthread_mutex_lock(&sch->mux_done_lock);
    av_assert0(sch->nb_mux_done < sch->nb_mux);
    sch->nb_mux_done++;
-    pthread_cond_signal(&sch->finish_cond);
+    pthread_cond_signal(&sch->mux_done_cond);
-    pthread_mutex_unlock(&sch->finish_lock);
+    pthread_mutex_unlock(&sch->mux_done_lock);
    return 0;
 }
@ -2542,12 +2522,8 @@ static void *task_wrapper(void *arg)
    // EOF is considered normal termination
    if (ret == AVERROR_EOF)
        ret = 0;
-    if (ret < 0) {
+    if (ret < 0)
-        pthread_mutex_lock(&sch->finish_lock);
+        atomic_store(&sch->task_failed, 1);
        sch->task_failed = 1;
        pthread_cond_signal(&sch->finish_cond);
        pthread_mutex_unlock(&sch->finish_lock);
    }
    av_log(task->func_arg, ret < 0 ? AV_LOG_ERROR : AV_LOG_VERBOSE,
           "Terminating thread with return code %d (%s)\n", ret,
--- a/fftools/ffmpeg_sched.h
+++ b/fftools/ffmpeg_sched.h
@ -355,7 +355,7 @@ enum DemuxSendFlags {
 * @retval "non-negative value" success
 * @retval AVERROR_EOF all consumers for the stream are done
 * @retval AVERROR_EXIT all consumers are done, should terminate demuxing
- * @retval "another negative error code" other failure
+ * @retval "anoter negative error code" other failure
 */
 int sch_demux_send(Scheduler *sch, unsigned demux_idx, struct AVPacket *pkt,
                   unsigned flags);
@ -436,7 +436,7 @@ void sch_filter_receive_finish(Scheduler *sch, unsigned fg_idx, unsigned in_idx)
 *
 * @retval "non-negative value" success
 * @retval AVERROR_EOF all consumers are done
- * @retval "another negative error code" other failure
+ * @retval "anoter negative error code" other failure
 */
 int sch_filter_send(Scheduler *sch, unsigned fg_idx, unsigned out_idx,
                    struct AVFrame *frame);
--- a/fftools/ffmpeg_utils.h
+++ b/fftools/ffmpeg_utils.h
@ -44,20 +44,14 @@ static inline int err_merge(int err0, int err1)
    return (err0 < 0) ? err0 : FFMIN(err1, 0);
 }
-/**
+static inline void pkt_move(void *dst, void *src)
 * Wrapper calling av_frame_side_data_clone() in a loop for all source entries.
 * It does not clear dst beforehand. */
 static inline int clone_side_data(AVFrameSideData ***dst, int *nb_dst,
                                  AVFrameSideData * const *src, int nb_src,
                                  unsigned int flags)
 {
-    for (int i = 0; i < nb_src; i++) {
+    av_packet_move_ref(dst, src);
-        int ret = av_frame_side_data_clone(dst, nb_dst, src[i], flags);
+}
        if (ret < 0)
            return ret;
    }
-    return 0;
+static inline void frame_move(void *dst, void *src)
 {
    av_frame_move_ref(dst, src);
 }
 #endif // FFTOOLS_FFMPEG_UTILS_H
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@ -388,6 +388,7 @@ static const struct TextureFormatEntry {
    { AV_PIX_FMT_YUV420P,        SDL_PIXELFORMAT_IYUV },
    { AV_PIX_FMT_YUYV422,        SDL_PIXELFORMAT_YUY2 },
    { AV_PIX_FMT_UYVY422,        SDL_PIXELFORMAT_UYVY },
    { AV_PIX_FMT_NONE,           SDL_PIXELFORMAT_UNKNOWN },
 };
 static int opt_add_vfilter(void *optctx, const char *opt, const char *arg)
@ -894,7 +895,7 @@ static void get_sdl_pix_fmt_and_blendmode(int format, Uint32 *sdl_pix_fmt, SDL_B
        format == AV_PIX_FMT_BGR32   ||
        format == AV_PIX_FMT_BGR32_1)
        *sdl_blendmode = SDL_BLENDMODE_BLEND;
-    for (i = 0; i < FF_ARRAY_ELEMS(sdl_texture_format_map); i++) {
+    for (i = 0; i < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; i++) {
        if (format == sdl_texture_format_map[i].format) {
            *sdl_pix_fmt = sdl_texture_format_map[i].texture_fmt;
            return;
@ -940,6 +941,7 @@ static enum AVColorSpace sdl_supported_color_spaces[] = {
    AVCOL_SPC_BT709,
    AVCOL_SPC_BT470BG,
    AVCOL_SPC_SMPTE170M,
    AVCOL_SPC_UNSPECIFIED,
 };
 static void set_sdl_yuv_conversion_mode(AVFrame *frame)
@ -1859,6 +1861,7 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
 {
    enum AVPixelFormat pix_fmts[FF_ARRAY_ELEMS(sdl_texture_format_map)];
    char sws_flags_str[512] = "";
    char buffersrc_args[256];
    int ret;
    AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;
    AVCodecParameters *codecpar = is->video_st->codecpar;
@ -1872,13 +1875,14 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
        return AVERROR(ENOMEM);
    for (i = 0; i < renderer_info.num_texture_formats; i++) {
-        for (j = 0; j < FF_ARRAY_ELEMS(sdl_texture_format_map); j++) {
+        for (j = 0; j < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; j++) {
            if (renderer_info.texture_formats[i] == sdl_texture_format_map[j].texture_fmt) {
                pix_fmts[nb_pix_fmts++] = sdl_texture_format_map[j].format;
                break;
            }
        }
    }
    pix_fmts[nb_pix_fmts] = AV_PIX_FMT_NONE;
    while ((e = av_dict_iterate(sws_dict, e))) {
        if (!strcmp(e->key, "sws_flags")) {
@ -1891,49 +1895,36 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
    graph->scale_sws_opts = av_strdup(sws_flags_str);
    snprintf(buffersrc_args, sizeof(buffersrc_args),
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d:"
             "colorspace=%d:range=%d",
             frame->width, frame->height, frame->format,
             is->video_st->time_base.num, is->video_st->time_base.den,
             codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1),
             frame->colorspace, frame->color_range);
    if (fr.num && fr.den)
        av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
-    filt_src = avfilter_graph_alloc_filter(graph, avfilter_get_by_name("buffer"),
+    if ((ret = avfilter_graph_create_filter(&filt_src,
-                                           "ffplay_buffer");
+                                            avfilter_get_by_name("buffer"),
-    if (!filt_src) {
+                                            "ffplay_buffer", buffersrc_args, NULL,
-        ret = AVERROR(ENOMEM);
+                                            graph)) < 0)
        goto fail;
    }
    par->format              = frame->format;
    par->time_base           = is->video_st->time_base;
    par->width               = frame->width;
    par->height              = frame->height;
    par->sample_aspect_ratio = codecpar->sample_aspect_ratio;
    par->color_space         = frame->colorspace;
    par->color_range         = frame->color_range;
    par->frame_rate          = fr;
    par->hw_frames_ctx = frame->hw_frames_ctx;
    ret = av_buffersrc_parameters_set(filt_src, par);
    if (ret < 0)
        goto fail;
-    ret = avfilter_init_dict(filt_src, NULL);
+    ret = avfilter_graph_create_filter(&filt_out,
                                       avfilter_get_by_name("buffersink"),
                                       "ffplay_buffersink", NULL, NULL, graph);
    if (ret < 0)
        goto fail;
-    filt_out = avfilter_graph_alloc_filter(graph, avfilter_get_by_name("buffersink"),
+    if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts,  AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
                                           "ffplay_buffersink");
    if (!filt_out) {
        ret = AVERROR(ENOMEM);
        goto fail;
    }
    if ((ret = av_opt_set_array(filt_out, "pixel_formats", AV_OPT_SEARCH_CHILDREN,
                                0, nb_pix_fmts, AV_OPT_TYPE_PIXEL_FMT, pix_fmts)) < 0)
        goto fail;
    if (!vk_renderer &&
-        (ret = av_opt_set_array(filt_out, "colorspaces", AV_OPT_SEARCH_CHILDREN,
+        (ret = av_opt_set_int_list(filt_out, "color_spaces", sdl_supported_color_spaces,  AVCOL_SPC_UNSPECIFIED, AV_OPT_SEARCH_CHILDREN)) < 0)
                                0, FF_ARRAY_ELEMS(sdl_supported_color_spaces),
                                AV_OPT_TYPE_INT, sdl_supported_color_spaces)) < 0)
        goto fail;
    ret = avfilter_init_dict(filt_out, NULL);
    if (ret < 0)
        goto fail;
    last_filter = filt_out;
@ -2003,6 +1994,8 @@ fail:
 static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
 {
    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
    int sample_rates[2] = { 0, -1 };
    AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
    char aresample_swr_opts[512] = "";
    const AVDictionaryEntry *e = NULL;
@ -2036,28 +2029,30 @@ static int configure_audio_filters(VideoState *is, const char *afilters, int for
    if (ret < 0)
        goto end;
    filt_asink = avfilter_graph_alloc_filter(is->agraph, avfilter_get_by_name("abuffersink"),
                                             "ffplay_abuffersink");
    if (!filt_asink) {
        ret = AVERROR(ENOMEM);
        goto end;
    }
-    if ((ret = av_opt_set(filt_asink, "sample_formats", "s16", AV_OPT_SEARCH_CHILDREN)) < 0)
+    ret = avfilter_graph_create_filter(&filt_asink,
                                       avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
                                       NULL, NULL, is->agraph);
    if (ret < 0)
        goto end;
    if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts,  AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
        goto end;
    if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
        goto end;
    if (force_output_format) {
-        if ((ret = av_opt_set_array(filt_asink, "channel_layouts", AV_OPT_SEARCH_CHILDREN,
+        av_bprint_clear(&bp);
-                                    0, 1, AV_OPT_TYPE_CHLAYOUT, &is->audio_tgt.ch_layout)) < 0)
+        av_channel_layout_describe_bprint(&is->audio_tgt.ch_layout, &bp);
        sample_rates   [0] = is->audio_tgt.freq;
        if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
            goto end;
-        if ((ret = av_opt_set_array(filt_asink, "samplerates", AV_OPT_SEARCH_CHILDREN,
+        if ((ret = av_opt_set(filt_asink, "ch_layouts", bp.str, AV_OPT_SEARCH_CHILDREN)) < 0)
-                                    0, 1, AV_OPT_TYPE_INT, &is->audio_tgt.freq)) < 0)
+            goto end;
        if ((ret = av_opt_set_int_list(filt_asink, "sample_rates"   , sample_rates   ,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)
            goto end;
    }
    ret = avfilter_init_dict(filt_asink, NULL);
    if (ret < 0)
        goto end;
    if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
        goto end;
@ -2612,11 +2607,6 @@ static int create_hwaccel(AVBufferRef **device_ctx)
    if (type == AV_HWDEVICE_TYPE_NONE)
        return AVERROR(ENOTSUP);
    if (!vk_renderer) {
        av_log(NULL, AV_LOG_ERROR, "Vulkan renderer is not available\n");
        return AVERROR(ENOTSUP);
    }
    ret = vk_renderer_get_hw_dev(vk_renderer, &vk_dev);
    if (ret < 0)
        return ret;
--- a/fftools/ffplay_renderer.c
+++ b/fftools/ffplay_renderer.c
@ -259,8 +259,8 @@ static int create_vk_by_hwcontext(VkRenderer *renderer,
    ctx->get_proc_addr = hwctx->get_proc_addr;
    ctx->inst = hwctx->inst;
-
+    ctx->placebo_vulkan = pl_vulkan_import(ctx->vk_log,
-    struct pl_vulkan_import_params import_params = {
+        pl_vulkan_import_params(
            .instance = hwctx->inst,
            .get_proc_addr = hwctx->get_proc_addr,
            .phys_device = hwctx->phys_dev,
@ -272,36 +272,18 @@ static int create_vk_by_hwcontext(VkRenderer *renderer,
            .unlock_queue   = hwctx_unlock_queue,
            .queue_ctx      = dev,
            .queue_graphics = {
-                .index = VK_QUEUE_FAMILY_IGNORED,
+                .index = hwctx->queue_family_index,
-                .count = 0,
+                .count = hwctx->nb_graphics_queues,
            },
            .queue_compute = {
-                .index = VK_QUEUE_FAMILY_IGNORED,
+                .index = hwctx->queue_family_comp_index,
-                .count = 0,
+                .count = hwctx->nb_comp_queues,
            },
            .queue_transfer = {
-                .index = VK_QUEUE_FAMILY_IGNORED,
+                .index = hwctx->queue_family_tx_index,
-                .count = 0,
+                .count = hwctx->nb_tx_queues,
            },
-    };
+        ));
    for (int i = 0; i < hwctx->nb_qf; i++) {
        const AVVulkanDeviceQueueFamily *qf = &hwctx->qf[i];
        if (qf->flags & VK_QUEUE_GRAPHICS_BIT) {
            import_params.queue_graphics.index = qf->idx;
            import_params.queue_graphics.count = qf->num;
        }
        if (qf->flags & VK_QUEUE_COMPUTE_BIT) {
            import_params.queue_compute.index = qf->idx;
            import_params.queue_compute.count = qf->num;
        }
        if (qf->flags & VK_QUEUE_TRANSFER_BIT) {
            import_params.queue_transfer.index = qf->idx;
            import_params.queue_transfer.count = qf->num;
        }
    }
    ctx->placebo_vulkan = pl_vulkan_import(ctx->vk_log, &import_params);
    if (!ctx->placebo_vulkan)
        return AVERROR_EXTERNAL;
@ -409,8 +391,8 @@ static int create_vk_by_placebo(VkRenderer *renderer,
    device_ctx->user_opaque = ctx;
    vk_dev_ctx = device_ctx->hwctx;
-    vk_dev_ctx->lock_queue = placebo_lock_queue;
+    vk_dev_ctx->lock_queue = placebo_lock_queue,
-    vk_dev_ctx->unlock_queue = placebo_unlock_queue;
+            vk_dev_ctx->unlock_queue = placebo_unlock_queue;
    vk_dev_ctx->get_proc_addr = ctx->placebo_instance->get_proc_addr;
@ -426,38 +408,21 @@ static int create_vk_by_placebo(VkRenderer *renderer,
    vk_dev_ctx->enabled_dev_extensions = ctx->placebo_vulkan->extensions;
    vk_dev_ctx->nb_enabled_dev_extensions = ctx->placebo_vulkan->num_extensions;
-    int nb_qf = 0;
+    vk_dev_ctx->queue_family_index = ctx->placebo_vulkan->queue_graphics.index;
-    vk_dev_ctx->qf[nb_qf] = (AVVulkanDeviceQueueFamily) {
+    vk_dev_ctx->nb_graphics_queues = ctx->placebo_vulkan->queue_graphics.count;
-        .idx = ctx->placebo_vulkan->queue_graphics.index,
+
-        .num = ctx->placebo_vulkan->queue_graphics.count,
+    vk_dev_ctx->queue_family_tx_index = ctx->placebo_vulkan->queue_transfer.index;
-        .flags = VK_QUEUE_GRAPHICS_BIT,
+    vk_dev_ctx->nb_tx_queues = ctx->placebo_vulkan->queue_transfer.count;
-    };
+
-    nb_qf++;
+    vk_dev_ctx->queue_family_comp_index = ctx->placebo_vulkan->queue_compute.index;
-    vk_dev_ctx->qf[nb_qf] = (AVVulkanDeviceQueueFamily) {
+    vk_dev_ctx->nb_comp_queues = ctx->placebo_vulkan->queue_compute.count;
        .idx = ctx->placebo_vulkan->queue_transfer.index,
        .num = ctx->placebo_vulkan->queue_transfer.count,
        .flags = VK_QUEUE_TRANSFER_BIT,
    };
    nb_qf++;
    vk_dev_ctx->qf[nb_qf] = (AVVulkanDeviceQueueFamily) {
        .idx = ctx->placebo_vulkan->queue_compute.index,
        .num = ctx->placebo_vulkan->queue_compute.count,
        .flags = VK_QUEUE_COMPUTE_BIT,
    };
    nb_qf++;
    ret = get_decode_queue(renderer, &decode_index, &decode_count);
    if (ret < 0)
        return ret;
-    vk_dev_ctx->qf[nb_qf] = (AVVulkanDeviceQueueFamily) {
+    vk_dev_ctx->queue_family_decode_index = decode_index;
-        .idx = decode_index,
+    vk_dev_ctx->nb_decode_queues = decode_count;
        .num = decode_count,
        .flags = VK_QUEUE_VIDEO_DECODE_BIT_KHR,
    };
    nb_qf++;
    vk_dev_ctx->nb_qf = nb_qf;
    ret = av_hwdevice_ctx_init(ctx->hw_device_ref);
    if (ret < 0)
@ -732,7 +697,6 @@ static int display(VkRenderer *renderer, AVFrame *frame)
    struct pl_frame target = {0};
    RendererContext *ctx = (RendererContext *) renderer;
    int ret = 0;
    struct pl_color_space hint = {0};
    ret = convert_frame(renderer, frame);
    if (ret < 0)
@ -745,8 +709,6 @@ static int display(VkRenderer *renderer, AVFrame *frame)
        return AVERROR_EXTERNAL;
    }
    pl_color_space_from_avframe(&hint, frame);
    pl_swapchain_colorspace_hint(ctx->swapchain, &hint);
    if (!pl_swapchain_start_frame(ctx->swapchain, &swap_frame)) {
        av_log(NULL, AV_LOG_ERROR, "start frame failed\n");
        ret = AVERROR_EXTERNAL;
--- a/fftools/ffprobe.c
+++ b/fftools/ffprobe.c
--- a/fftools/graph/graphprint.c
+++ b/fftools/graph/graphprint.c
--- a/fftools/graph/graphprint.h
+++ b/fftools/graph/graphprint.h
@ -1,30 +0,0 @@
 /*
 * Copyright (c) 2018-2025 - softworkz
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 #ifndef FFTOOLS_GRAPH_GRAPHPRINT_H
 #define FFTOOLS_GRAPH_GRAPHPRINT_H
 #include "fftools/ffmpeg.h"
 int print_filtergraphs(FilterGraph **graphs, int nb_graphs, InputFile **ifiles, int nb_ifiles, OutputFile **ofiles, int nb_ofiles);
 int print_filtergraph(FilterGraph *fg, AVFilterGraph *graph);
 #endif /* FFTOOLS_GRAPH_GRAPHPRINT_H */
--- a/fftools/objpool.c
+++ b/fftools/objpool.c
@ -0,0 +1,131 @@
 /*
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 #include <stdint.h>
 #include "libavcodec/packet.h"
 #include "libavutil/common.h"
 #include "libavutil/error.h"
 #include "libavutil/frame.h"
 #include "libavutil/mem.h"
 #include "objpool.h"
 struct ObjPool {
    void        *pool[32];
    unsigned int pool_count;
    ObjPoolCBAlloc alloc;
    ObjPoolCBReset reset;
    ObjPoolCBFree  free;
 };
 ObjPool *objpool_alloc(ObjPoolCBAlloc cb_alloc, ObjPoolCBReset cb_reset,
                       ObjPoolCBFree cb_free)
 {
    ObjPool *op = av_mallocz(sizeof(*op));
    if (!op)
        return NULL;
    op->alloc = cb_alloc;
    op->reset = cb_reset;
    op->free  = cb_free;
    return op;
 }
 void objpool_free(ObjPool **pop)
 {
    ObjPool *op = *pop;
    if (!op)
        return;
    for (unsigned int i = 0; i < op->pool_count; i++)
        op->free(&op->pool[i]);
    av_freep(pop);
 }
 int  objpool_get(ObjPool *op, void **obj)
 {
    if (op->pool_count) {
        *obj = op->pool[--op->pool_count];
        op->pool[op->pool_count] = NULL;
    } else
        *obj = op->alloc();
    return *obj ? 0 : AVERROR(ENOMEM);
 }
 void objpool_release(ObjPool *op, void **obj)
 {
    if (!*obj)
        return;
    op->reset(*obj);
    if (op->pool_count < FF_ARRAY_ELEMS(op->pool))
        op->pool[op->pool_count++] = *obj;
    else
        op->free(obj);
    *obj = NULL;
 }
 static void *alloc_packet(void)
 {
    return av_packet_alloc();
 }
 static void *alloc_frame(void)
 {
    return av_frame_alloc();
 }
 static void reset_packet(void *obj)
 {
    av_packet_unref(obj);
 }
 static void reset_frame(void *obj)
 {
    av_frame_unref(obj);
 }
 static void free_packet(void **obj)
 {
    AVPacket *pkt = *obj;
    av_packet_free(&pkt);
    *obj = NULL;
 }
 static void free_frame(void **obj)
 {
    AVFrame *frame = *obj;
    av_frame_free(&frame);
    *obj = NULL;
 }
 ObjPool *objpool_alloc_packets(void)
 {
    return objpool_alloc(alloc_packet, reset_packet, free_packet);
 }
 ObjPool *objpool_alloc_frames(void)
 {
    return objpool_alloc(alloc_frame, reset_frame, free_frame);
 }
--- a/libavcodec/apv_dsp.h
+++ b/libavcodec/apv_dsp.h
@ -16,24 +16,22 @@
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
-#ifndef AVCODEC_APV_DSP_H
+#ifndef FFTOOLS_OBJPOOL_H
-#define AVCODEC_APV_DSP_H
+#define FFTOOLS_OBJPOOL_H
-#include <stddef.h>
+typedef struct ObjPool ObjPool;
 #include <stdint.h>
 typedef void* (*ObjPoolCBAlloc)(void);
 typedef void  (*ObjPoolCBReset)(void *);
 typedef void  (*ObjPoolCBFree)(void **);
-typedef struct APVDSPContext {
+void     objpool_free(ObjPool **op);
-    void (*decode_transquant)(void *output,
+ObjPool *objpool_alloc(ObjPoolCBAlloc cb_alloc, ObjPoolCBReset cb_reset,
-                              ptrdiff_t pitch,
+                       ObjPoolCBFree cb_free);
-                              const int16_t *input,
+ObjPool *objpool_alloc_packets(void);
-                              const int16_t *qmatrix,
+ObjPool *objpool_alloc_frames(void);
                              int bit_depth,
                              int qp_shift);
 } APVDSPContext;
-void ff_apv_dsp_init(APVDSPContext *dsp);
+int  objpool_get(ObjPool *op, void **obj);
 void objpool_release(ObjPool *op, void **obj);
-void ff_apv_dsp_init_x86_64(APVDSPContext *dsp);
+#endif // FFTOOLS_OBJPOOL_H
 #endif /* AVCODEC_APV_DSP_H */
--- a/Show more
+++ b/Show more
`@ -1,2 +1 @@`
	`*.pnm -diff -text`	`*.pnm -diff -text`
	`Changelog merge=union`