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Leo Izen 4013b8d3f0
avcodec/pngdec: improve handling of bad cICP range tags
FFmpeg doesn't support tv-range RGB throughout most of its pipeline, so
we should keep the warning. However, in case something does support it
we should at least keep it tagged properly. Additionally, the encoder
writes this tag if the space is tagged as such so this makes a round
trip work as it should.

Also, PNG doesn't support nonzero matrices but we only warn and ignore
in that case, so we have no reason to error out for illegal cICP ranges
either (i.e. greater than 1).

Signed-off-by: Leo Izen <leo.izen@gmail.com>
Reported-by: Kacper Michajłow <kasper93@gmail.com>
2023-12-22 22:07:35 -05:00
compat
doc fftools/ffmpeg: remove deprecated -[av]bsf 2023-12-22 11:39:57 +01:00
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/pngdec: improve handling of bad cICP range tags 2023-12-22 22:07:35 -05:00
libavdevice all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavfilter all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavformat all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +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
tests avcodec/takdsp: fix const correctness 2023-12-22 09:28:04 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for VMIX 2023-12-14 23:34:46 +01:00
.gitattributes
.gitignore
.mailmap mailmap: remap my email accounts 2023-11-03 20:57:49 +08:00
.travis.yml
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
Changelog Add new vf_tiltandshift filter 2023-12-21 17:16:16 -05:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: Remove older s3tc entry 2023-12-10 03:25:23 -05:00
Makefile configure: Add a --disable-version-tracking option 2023-12-21 11:00:34 +02:00
README.md
RELEASE
configure configure: Fix linking d3d12va in UWP mode 2023-12-22 12:04:17 +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.