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Niklas Haas 7d6cd13ccb fftools/ffmpeg_filter: simplify choose_pix_fmts 
The only meaningful difference between choose_pix_fmts and the default
code was the inclusion of an extra branch for `keep_pix_fmt` being true.

However, in this case, we either:
1. Force the specific `ofp->format` that we inherited from
   ofilter_bind_ost, or if no format was set:
2. Print an empty format list

Both of these goals can be accomplished by simply moving the decision
logic to ofilter_bind_ost, to avoid setting any format list when
keep_pix_fmt is enabled. This is arguably cleaner as it moves format
selection logic to a single function. In the case of branch 1, nothing
else needs to be done as we already force the format provided in
ofp->format, if any is set. Add an assertion to verify this assumption
just in case.

(Side note: The "choose_*" family of functions are arguably misnomers,
as they should really be called "print_*" - their current behavior is to
print the relevant format lists to the `vf/af_format` filter arguments)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Niklas Haas <git@haasn.dev>
2024-09-08 13:59:29 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avcodec: add avcodec_get_supported_config() 2024-09-08 13:59:25 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_filter: simplify choose_pix_fmts 2024-09-08 13:59:29 +02:00
libavcodec avcodec/codec_internal: nuke init_static_data() 2024-09-08 13:59:29 +02:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 18:01:43 +02:00
libavfilter avfilter/af_bs2b: remove unecessary initializer from layouts 2024-09-05 12:36:04 -03:00
libavformat avformat/mxfenc: Fix guess frame_rate 2024-09-04 13:01:37 +02:00
libavutil lavu/opt: Fix return of uninitialised value 2024-09-07 20:42:26 +02:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample swresample/swresample: Rectify invalid function in the documentation 2024-07-02 21:57:17 +02:00
libswscale swscale/aarch64/rgb2rgb: add neon implementation for rgb24toyv12 2024-09-06 23:11:13 +02:00
presets
tests checkasm/sw_rgb: add rgb24toyv12 tests 2024-09-06 23:06:35 +02:00
tools tools/target_swr_fuzzer: Check av_samples_fill_arrays() for failure 2024-08-28 16:27:55 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog avcodec: add Mediacodec audio decoders support 2024-09-01 12:25:56 +02:00
configure configure: improve check for POSIX ioctl 2024-09-01 18:01:43 +02:00
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 avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add myself for hevc/* 2024-09-06 13:59:04 +02:00
Makefile add tools/target_swr_fuzzer 2024-08-08 15:26:52 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
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.