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Andreas Rheinhardt 54cf0482bd avcodec/sgidec: Support negative linesizes 
The earlier code used "p->data[0] + p->linesize[0] * s->height" with
the latter being unsigned, which gives the wrong value for negative
linesizes. There is also a not so obvious problem with this:
In case of negative linesizes, the last line is the start of
the allocated buffer, so using the line after the last line
would involve undefined pointer arithmetic. So don't do it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-10-05 14:38:11 +02:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc lavu: bump minor and add APIChanges entry for RISC-V's RVBbasic 2022-10-05 08:31:15 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg: move some code from init_output_stream() to init_output_stream_encode() 2022-10-04 11:55:03 +02:00
libavcodec avcodec/sgidec: Support negative linesizes 2022-10-05 14:38:11 +02:00
libavdevice avformat/internal: Don't include avcodec.h 2022-09-26 03:02:50 +02:00
libavfilter lavfi/avf_showspatial: add framerate option 2022-10-04 11:55:03 +02:00
libavformat avformat/vividas: Check packet size 2022-10-04 23:47:54 +02:00
libavutil lavu: bump minor and add APIChanges entry for RISC-V's RVBbasic 2022-10-05 08:31:15 +02:00
libpostproc configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
libswresample swsresample/swresample: error out on invalid layouts 2022-09-14 09:52:33 -03:00
libswscale sws/rgb2rgb: RISC-V 64-bit V packed YUYV/UYVY to planar 4:2:2 2022-09-30 07:25:44 +02:00
presets
tests lavu/riscv: CPU flag for the Zbb extension 2022-10-05 08:26:19 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for Jpeg2000 2022-09-16 21:30:59 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog avcodec: add a bsf to reorder DTS into PTS 2022-10-04 08:40:16 -03:00
configure configure, avcodec/Makefile: Remove obsolete mpegvideo dependencies 2022-10-04 17:41:34 +02:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
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: remove the project leader section 2022-09-23 16:06:11 +02:00
Makefile configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00

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.