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Anton Khirnov 48d8d3549a fftools/ffmpeg_enc: stop configuring filter inputs from encoder flush 
When no frames are ever seen by an encoder, encoder flush will do a
last-ditch attempt to configure its source filtergraph in order to at
least get the stream parameters. This involves extracting demuxer
parameters from filtergraph source inputs, which is
* a bad layering violation
* probably unreachable, because decoders are flushed before encoders,
  which should call ifilter_send_eof(), which will also set these
  parameters; however due to complex control flow it is hard to be
  entirely sure this code can never be triggered

Even if this code can actually be reached, it is probably better to
return an error as the comment above it says.
2023-05-08 10:38:59 +02:00
compat compat: Use '-' instead of '/' for rc.exe options 2023-02-13 13:49:40 +02:00
doc doc/filters/colorcorrect: fix bh option description 2023-05-07 23:23:48 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg_enc: stop configuring filter inputs from encoder flush 2023-05-08 10:38:59 +02:00
libavcodec lavc/codec_par: add AVCodecParameters.framerate 2023-05-07 15:47:25 +02:00
libavdevice avdevice/decklink_enc: fix operator precedence in create_s337_payload 2023-04-24 23:00:50 +02:00
libavfilter avfilter/f_ebur128: export results into read-only options 2023-05-07 17:28:25 +02:00
libavformat lavf/demux: export codec-level framerate in avformat_find_stream_info() 2023-05-07 15:47:25 +02:00
libavutil avutil/version: bump minor after recent changes 2023-05-04 19:20:06 -03:00
libpostproc version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
libswresample swresample/swresample: add a used channel layout option using the new API 2023-02-19 18:28:45 -03:00
libswscale version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
presets
tests fftools/ffmpeg: always use the same path for setting InputStream.[next_]dts 2023-05-02 10:59:24 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for rka 2023-05-01 00:48:32 +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
Changelog fftools/ffmpeg: add ability to set a input burst time before readrate is enforced 2023-05-07 15:48:15 +02:00
configure lavu/hwcontext_vaapi: Add Windows/VAAPI support with vaGetDisplayWin32 2023-04-24 13:24:41 +08:00
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
LICENSE.md
MAINTAINERS MAINTAINERS: add vanitous self to maintain RISC-V 2023-05-05 11:54:34 -03:00
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.