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Niklas Haas 8c7934f73a avfilter: add negotiation API for color space/range 
Motivated by YUVJ removal. This change will allow full negotiation
between color ranges and matrices as needed. By default, all ranges and
matrices are marked as supported.

Because grayscale formats are currently handled very inconsistently (and
in particular, assumed as forced full-range by swscale), we exclude them
from negotiation altogether for the time being, to get this API merged.

After filter negotiation is available, we can relax the
grayscale-is-forced-jpeg restriction again, when it will be more
feasible to do so without breaking a million test cases.

Note that this commit updates one FATE test as a consequence of the
sanity fallback for non-YUV formats. In particular, the test case now
writes rgb24(pc, gbr/unspecified/unspecified) to the matroska file,
instead of rgb24(unspecified/unspecified/unspecified) as before.
 		2023-12-31 13:35:03 -08:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avfilter: add negotiation API for color space/range 2023-12-31 13:35:03 -08:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavcodec avcodec/mpegvideo_enc: Use ptrdiff_t for stride 2023-12-30 21:50:05 +01:00
libavdevice all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavfilter avfilter: add negotiation API for color space/range 2023-12-31 13:35:03 -08:00
libavformat Add jpeg2000 subdescriptor (V2). 2023-12-31 14:18:01 +01:00
libavutil all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample swr/swresample: avoid reapplication of firstpts 2023-12-18 15:47:04 +05:30
libswscale riscv: test for assembler support 2023-12-08 17:21:09 +02:00
presets
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tests avfilter: add negotiation API for color space/range 2023-12-31 13:35:03 -08:00
tools tools/target_dec_fuzzer: Adjust threshold for QPEG 2023-12-29 01:15:41 +01:00
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.mailmap mailmap: remap my email accounts 2023-11-03 20:57:49 +08:00
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CONTRIBUTING.md
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COPYING.GPLv2
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COPYING.LGPLv2.1
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
Changelog Add new vf_tiltandshift filter 2023-12-21 17:16:16 -05:00
INSTALL.md
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LICENSE.md
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MAINTAINERS Remove myself from maintainers. 2023-12-23 23:15:55 +11:00
Makefile configure: Add a --disable-version-tracking option 2023-12-21 11:00:34 +02:00
README.md
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RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00
configure configure: Enable section_data_rel_ro for FreeBSD and NetBSD aarch64 / arm 2023-12-25 23:52:37 +01:00

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.