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FFmpeg with custom patches for LAV Filters
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Connor Worley a4f019e44e lavc/dxv: assume DXV2 files use premultiplied alpha 
I generated a DXV2 file with an interesting alpha channel using
Adobe Media Encoder 2015 and compared decoding it using Resolume Alley
and ffmpeg. Similarly to DXV3 files, Alley expects premultiplied alpha
and ffmpeg matches its decoding more closely when it does the same.

Reference file: https://connorworley.com/dxv2-dxt5.mov

Existing FATE tests for DXV2 files do not cover this change.

Signed-off-by: Connor Worley <connorbworley@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 		2024-02-18 07:33:27 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avutil/pixfmt: Add AV_VIDEO_MAX_PLANES 2024-02-16 21:34:38 +01:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools all: use designated initializers for AVOption.unit 2024-02-14 14:53:41 +01:00
libavcodec lavc/dxv: assume DXV2 files use premultiplied alpha 2024-02-18 07:33:27 +01:00
libavdevice all: use designated initializers for AVOption.unit 2024-02-14 14:53:41 +01:00
libavfilter avfilter/v360: Use AV_VIDEO_MAX_PLANES 2024-02-16 21:34:38 +01:00
libavformat avformat/libsrt: Fix srt:// URL query string parsing 2024-02-15 00:34:16 +01:00
libavutil avutil/pixfmt: Add AV_VIDEO_MAX_PLANES 2024-02-16 21:34:38 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample all: use designated initializers for AVOption.unit 2024-02-14 14:53:41 +01:00
libswscale swscale/tests/swscale: Add help text 2024-02-15 23:07:44 +01:00
presets
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tests checkasm/rv34dsp: add rv34_idct_dc_add test 2024-02-17 14:33:35 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for QPEG 2023-12-29 01:15:41 +01:00
.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: update my mailmap entry 2024-02-06 10:34:15 +01:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
CONTRIBUTING.md
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COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
Changelog lavc/bsf: add a showinfo filter 2024-02-02 15:41:54 +01:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: remove myself from here 2024-02-04 22:22:42 +01:00
Makefile configure: Add a --disable-version-tracking option 2023-12-21 11:00:34 +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
configure avutil/thread: add support for setting thread name on *bsd and solaris 2024-02-04 20:45:10 +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.