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hwcontext_vulkan: add support for implicit DRM synchronization 
More recent kernel versions allow for users to extract a sync_file
handle from a DMA-BUF, which can then be imported into Vulkan as a
binary semaphore.

This finally allows for synchronization between Vulkan and DMA-BUF
images, such as those from screen capture software, or VAAPI,
avoiding any corruption artifacts.

This is done fully asynchronously, where we use the kernel's
given binary semaphores as a dependency to increment the image's
usual VkSemaphores we allocate. The old imported binary semaphores
are cleaned up after execution as usual.

In the future, hwcontext_drm should receive support for explicitly
synchronized images as well, which would make the synchronization
more robust and portable.
2024-09-22 02:11:08 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avfilter: add an LCEVC decoding filter 2024-09-19 10:06:05 -03:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools ffmpeg_mux_init: correct log suggestion 2024-09-19 15:35:15 +05:30
libavcodec avcodec/cbs_h266: Fix copy paste mistake 2024-09-20 22:32:54 +02:00
libavdevice avdevice/jack: use av_err2str to simplify code 2024-09-13 00:30:48 +02:00
libavfilter avfilter: add an LCEVC decoding filter 2024-09-19 10:06:05 -03:00
libavformat avformat/mov: support for LCEVC tracks 2024-09-19 10:01:24 -03:00
libavutil hwcontext_vulkan: add support for implicit DRM synchronization 2024-09-22 02:11:08 +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/output: Fix undefined integer overflow in yuv2rgba64_2_c_template() 2024-09-19 00:24:26 +02:00
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tests fftools/cmdutils: extend stream specifiers to match by disposition 2024-09-18 11:01:02 +02:00
tools tools/target_swr_fuzzer: Check av_samples_fill_arrays() for failure 2024-08-28 16:27:55 +02:00
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Changelog avfilter: add an LCEVC decoding filter 2024-09-19 10:06:05 -03:00
configure configure: do not use interval regexp operators with awk 2024-09-20 02:50:01 +02:00
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MAINTAINERS MAINTAINERS: add myself as vf_xfade_vulkan maintainer 2024-09-19 21:28:11 +02:00
Makefile add tools/target_swr_fuzzer 2024-08-08 15:26:52 +02:00
README.md
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.