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Andreas Rheinhardt 0e6fdebd0d avcodec/vp3: Simplify shuffling frames, fix crash on alloc error 
When decoding non-keyframes, the decoding process expects
there to be two reference frames, the last one and the golden
one. The existence of the golden one is checked and in case
it is there, it is presumed that the last one exists as well.

This assumption is wrong in case of memory allocation failure,
namely in case the call to ff_thread_ref_frame() that sets
the last frame fails.

Fix this by actually performing a shuffle without creating
new references. This can't fail and has the advantage of
fewer implicit allocations.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-09-18 02:55:14 +02:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avformat/mov: add interleaved_read option 2023-09-14 18:49:51 +08:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg: do not fail on AVERROR(EAGAIN) from choose_output() 2023-09-14 10:44:05 +02:00
libavcodec avcodec/vp3: Simplify shuffling frames, fix crash on alloc error 2023-09-18 02:55:14 +02:00
libavdevice avutil/imgutils: Add wrapper for av_image_copy() to avoid casts 2023-09-12 09:42:27 +02:00
libavfilter avfilter/x86/af_afir: add FMA3 SIMD 2023-09-17 11:11:24 +02:00
libavformat avformat: add CRI USM demuxer 2023-09-17 11:17:55 +02:00
libavutil avutil/hwcontext_vulkan: Cosmetics 2023-09-15 02:38:14 +02:00
libpostproc version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
libswresample libswresample: Prevent out of bounds. 2023-08-02 17:31:13 +02:00
libswscale avutil/internal: Don't auto-include emms.h 2023-09-04 11:04:45 +02:00
presets
tests avcodec/idctdsp: Avoid inclusion of avcodec.h 2023-09-11 00:26:34 +02:00
tools tools/patcheck: Remove test for ancient INIT_VLC_USE_STATIC 2023-09-11 00:26:34 +02:00
.gitattributes
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avformat: add CRI USM demuxer 2023-09-17 11:17:55 +02:00
configure vulkan: enable VK_KHR_cooperative_matrix 2023-08-26 23:14:53 +02:00
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: change Leo Izen IRC nickname 2023-06-20 12:46:47 -04:00
Makefile tools: add an AV_CODEC_CAP_ENCODER_RECON_FRAME test tool 2023-03-28 13:00:42 +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.