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Bin Peng fef37af2e2 lavc/aarch64: Fix addp overflow in ff_pred16x16_plane_neon_10 
The mismatch between neon and C functions can be reproduced
using the following bitstream and command line on aarch64 devices.

wget https://streams.videolan.org/ffmpeg/incoming/replay_intra_pred_16x16.h264
 ./ffmpeg -cpuflags 0  -threads 1 -i replay_intra_pred_16x16.h264  -f framemd5 -y md5_ref
 ./ffmpeg              -threads 1 -i replay_intra_pred_16x16.h264 -f framemd5 -y md5_neon

Signed-off-by: Bin Peng <pengbin@visionular.com>
(cherry picked from commit 3115c0c0e6)
 		2025-11-04 14:11:13 +02:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/html: fix styling issue with Texinfo 7.0 2024-03-15 00:27:10 +01:00
ffbuild Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
fftools fftools/ffmpeg: avoid possible invalid reads with short -tag values 2023-04-17 12:22:18 +02:00
libavcodec lavc/aarch64: Fix addp overflow in ff_pred16x16_plane_neon_10 2025-11-04 14:11:13 +02:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 20:10:44 -04:00
libavfilter avfilter/vf_untile: swap the chroma shift values used for plane offsets 2023-03-16 17:09:54 -03:00
libavformat avformat/mov: (v4) fix get_eia608_packet 2025-02-26 16:06:56 -07:00
libavutil avutil/ppc/cpu: Also use the machdep.altivec sysctl on NetBSD 2024-05-18 19:22:18 -04:00
libpostproc lib*/version.h: Bump Versions before release/5.0 branch 2022-01-04 13:40:03 +01:00
libswresample lib*/version.h: Bump Versions before release/5.0 branch 2022-01-04 13:40:03 +01:00
libswscale lsws/ppc/yuv2rgb_altivec: Fix build in non-VSX environments with Clang 2025-03-16 00:41:59 -04:00
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INSTALL.md
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
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README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
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RELEASE_NOTES RELEASE_NOTES: Based on the version from 4.3 2022-01-14 19:43:55 +01:00
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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.