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Andreas Rheinhardt 440f8186ef avformat/dashenc, hlsenc: Return 0 on succes from write_header
Do not propagate the return value of avformat_write_header(),
as it contains the information whether the output had
already been initialized in avformat_init_output(),
but this is set generically; the return value of
FFOutputFormat.write_header is not documented at all
(and is currently ignored if >= 0), but it is more future-proof
to simply return 0 on success.

Reviewed-by: Liu Steven <lq@chinaffmpeg.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-05 15:15:31 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc doc/ffprobe.xsd: add <components> and <pieces> 2024-03-04 12:51:21 +01:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools fftools/ffplay: stop printing non-public AVCodecContext fields 2024-03-04 15:56:48 +01:00
libavcodec avcodec/mediacodecenc: Add a hint message to use nv12 pix_fmt 2024-03-05 21:25:56 +08:00
libavdevice avdevice: deprecate sdl outdev 2024-02-28 10:28:49 +01:00
libavfilter fix /// comments that should be ///< 2024-03-04 17:38:57 +01:00
libavformat avformat/dashenc, hlsenc: Return 0 on succes from write_header 2024-03-05 15:15:31 +01:00
libavutil avutil/hwcontext_qsv: Allocate pub and priv frames hwctx together 2024-03-05 09:33:28 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample swresample/resample: fix rounding errors with filter_size=1 and phase_shift=0 2024-03-02 19:13:03 +01:00
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RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00

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.