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David Rosca 510494760c lavc/vaapi_h264: Fix merging fields in DPB with missing references 
If there are missing references, h264 decode does error concealment
by copying previous refs which means there will be duplicated surfaces.
Check long_ref and frame_idx in addition to surface when looking for
the other field to avoid trying to merge with wrong picture.
Also allow to merge with multiple pictures in case there are duplicates
of the other field.

Signed-off-by: David Rosca <nowrep@gmail.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2024-05-29 10:52:10 +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 lavc/vaapi_h264: Fix merging fields in DPB with missing references 2024-05-29 10:52:10 +08:00
libavdevice avdevice/dshow: fix badly indented line 2024-05-28 03:48:04 +02:00
libavfilter avfilter/af_atempo: Fix indentation 2024-05-23 10:45:55 +02:00
libavformat avformat/hls: update current segment reference before use 2024-05-28 15:02:02 +02:00
libavutil avutil/tests/opt: Check av_set_options_string() for failure 2024-05-28 03:48:05 +02:00
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/yuv2rgb: Use 64bit for brightness computation 2024-05-28 03:48:06 +02:00
presets
tests checkasm: add h263dsp.{h,v}_loop_filter 2024-05-27 22:42:07 +03:00
tools tools/decode_simple: Check avcodec_send_packet() for errors on flushing 2024-05-28 03:48:06 +02:00
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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
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README.md
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.