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Andreas Rheinhardt a2372f904c avcodec/Makefile: Only compile nvenc.o if needed 
This fixes compilation errors in case nvenc is enabled
(e.g. autodected) with both nvenc-based encoders disabled
because nvenc uses ff_alloc_a53_sei(), yet only the nvenc-based
encoders require atsc_a53.
(This error does not manifest itself in case of static linking
(nothing pulls in nvenc.o), but it exists with shared builds.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
 		2022-01-05 19:33:14 +01:00
compat
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doc doc/APIchanges: Fill in the commit hash for DOVI metadata addition 2022-01-04 12:40:07 +01:00
ffbuild Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
fftools ffprobe: Support AV_FRAME_DATA_DOVI_METADATA 2022-01-04 11:59:41 +01:00
libavcodec avcodec/Makefile: Only compile nvenc.o if needed 2022-01-05 19:33:14 +01:00
libavdevice lib*/version.h: Bump Versions after release/5.0 branch 2022-01-04 14:29:06 +01:00
libavfilter avfilter: add a blend_vulkan filter 2022-01-05 15:16:22 +01:00
libavformat avformat/imf: Fix indentation 2022-01-05 21:19:48 +10:00
libavutil avutil/hwcontext_vulkan: fixed incorrect memory offset 2022-01-05 14:13:39 +01:00
libpostproc lib*/version.h: Bump Versions after release/5.0 branch 2022-01-04 14:29:06 +01:00
libswresample lib*/version.h: Bump Versions after release/5.0 branch 2022-01-04 14:29:06 +01:00
libswscale swscale/output: use isSwappedChroma 2022-01-04 19:39:22 -06:00
presets
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tests lavfi/drawutils: re-enable P010 and P016 support 2022-01-04 19:39:22 -06:00
tools tools/target_dec_fuzzer: Adjust threshold for prores 2021-12-16 21:06:47 +01:00
.gitattributes
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.gitignore build: detect Metal.framework and build .metal files 2021-12-18 11:55:47 -08:00
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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
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Changelog Changelog: Add new <next> line after 5.0 2022-01-05 08:37:55 -03:00
INSTALL.md
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LICENSE.md
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MAINTAINERS MAINTAINERS: add my gpg fingerprint 2021-12-23 09:25:16 +08:00
Makefile Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
README.md
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RELEASE
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configure avfilter: add a blend_vulkan filter 2022-01-05 15:16:22 +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.