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Wu Jianhua 09d3370c28 avcodec/x86/vvc/vvc_alf: fix integer overflow 
Some tests fails with certain seeds

tests/checkasm/checkasm 2325607578 --test=vvc_alf
checkasm: using random seed 2325607578
AVX2:
    vvc_alf_filter_luma_120x20_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x24_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x28_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x32_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x36_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x40_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x44_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x48_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x52_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x56_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x60_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x64_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x68_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x72_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x76_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x80_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x84_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x88_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x92_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x96_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x100_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x104_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x108_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x112_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x116_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x120_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x124_12_avx2 (vvc_alf.c:104)
    vvc_alf_filter_luma_120x128_12_avx2 (vvc_alf.c:104)
  - vvc_alf.alf_filter   [FAILED]
  - vvc_alf.alf_classify [OK]
checkasm: 28 of 9216 tests have failed

Reported-by: James Almer <jamrial@gmail.com>
Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
2024-05-31 19:57:31 +08:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc doc/ffmpeg: document -channel_layout/ch_layout options 2024-05-27 21:46:47 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffplay: allow unused format options which are also codec options 2024-05-27 21:46:47 +02:00
libavcodec avcodec/x86/vvc/vvc_alf: fix integer overflow 2024-05-31 19:57:31 +08:00
libavdevice avdevice/dshow: fix badly indented line 2024-05-28 03:48:04 +02:00
libavfilter avfilter/dnn: Remove a level of dereference 2024-05-30 18:14:31 +08:00
libavformat Revert "avformat/file: seek back to initial position for fd protocol" 2024-05-30 18:30:21 +03:00
libavutil riscv: allow passing addend to vtype_vli macro 2024-05-30 18:30:52 +03:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale: [loongarch] Fix undeclared functions prob. 2024-05-31 02:20:23 +02:00
presets
tests avcodec/jpeg2000dec: fix HT block decoder 2024-05-30 21:30:52 -07:00
tools tools/decode_simple: Check avcodec_send_packet() for errors on flushing 2024-05-28 03:48:06 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap .mailmap: Update my mailmap entry 2024-02-23 00:17:21 +01:00
Changelog Changelog: add DVB compatible information for VVC decoder 2024-05-21 20:20:25 +08:00
configure configure: enable ffnvcodec, nvenc, nvdec for FreeBSD 2024-05-26 19:25:51 -04:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add myself as *BSD maintainer 2024-05-13 03:40:16 +02:00
Makefile riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.