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FFmpeg git repo
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Jyrki Vesterinen 8fc2dedfe6 avcodec/vorbisdec: don't use a flag to determine if frames have been output 
If a developer using FFmpeg libraries seeks into an earlier position and calls
avcodec_flush_buffers() afterwards as recommended, the Vorbis decoder will drop
the next frame, since buffer flushing clears the first_frame flag. As a result,
the audio samples the calling code receives may be ahead of the requested seek
position, which is unacceptable in some use cases such as playing a looping
sound effect.

This commit records the presentation timestamp of the first frame and
determines after that if the new frame is the first frame (possible after
seeking to the start) by comparing its pts to the stored pts.
 		2022-09-14 19:42:59 +02:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc libavfilter: add vf_colorrange_cuda, CUDA-accelerated color conversion filter 2022-09-13 22:59:30 +02:00
ffbuild
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fftools fftools/opt_common: check the return value of av_hwdevice_get_type_name before printing it 2022-09-14 09:54:19 -03:00
libavcodec avcodec/vorbisdec: don't use a flag to determine if frames have been output 2022-09-14 19:42:59 +02:00
libavdevice avutil/internal: Move avpriv-file API to a header of its own 2022-09-03 15:41:44 +02:00
libavfilter libavfilter: add vf_colorrange_cuda, CUDA-accelerated color conversion filter 2022-09-13 22:59:30 +02:00
libavformat avformat/dump: Avoid unnecessary implicit calculation of strlen 2022-09-14 15:03:59 +02:00
libavutil lavu/riscv: fix av_clip_int16 2022-09-14 14:37:21 -03:00
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 swscale/la: Add output_lasx.c file. 2022-09-10 22:56:39 +02:00
presets
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tests fate/spdif: Add spdif tests 2022-09-13 14:50:01 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for UTVIDEO 2022-09-10 17:32:47 +02:00
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Changelog avformat: add bonk demuxer 2022-09-12 11:35:43 +02:00
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MAINTAINERS MAINTAINERS: Add ED25519 key for signing my commits in the future 2022-08-09 21:57:31 +02:00
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configure libavfilter: add vf_colorrange_cuda, CUDA-accelerated color conversion filter 2022-09-13 22:59:30 +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.