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Lynne 3de73f1262
hw_base_encode: make recon_frames_ref optional 
Vulkan supports some stupidly odd hardware, that unfortunately,
most modern GPUs happen to be.
The DPB images for encoders may be required to be preallocated
all at once, and rather than be individual frames, be layers of
a single frame.

As the hw_base_encode code is written with the thought that either
the driver or the device itself supports sane image allocation,
Vulkan does not leave us with this option.

So, in the case that the hardware does not support individual
frames to be used as DPBs, make the DBP frames context optional,
and let the subsystem manage this.
2024-09-09 07:05:42 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc doc/APIchanges: mention correct version number 2024-09-08 18:07:30 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_filter: remove YUVJ hack 2024-09-08 13:59:29 +02:00
libavcodec hw_base_encode: make recon_frames_ref optional 2024-09-09 07:05:42 +02:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 18:01:43 +02:00
libavfilter avfilter: add XPSNR filter 2024-09-08 17:51:37 +02:00
libavformat avformat/mxfenc: Fix guess frame_rate 2024-09-04 13:01:37 +02:00
libavutil lavu/opt: Fix return of uninitialised value 2024-09-07 20:42:26 +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/aarch64/rgb2rgb: add neon implementation for rgb24toyv12 2024-09-06 23:11:13 +02:00
presets
tests avfilter: add XPSNR filter 2024-09-08 17:51:37 +02:00
tools tools/target_swr_fuzzer: Check av_samples_fill_arrays() for failure 2024-08-28 16:27:55 +02:00
.gitattributes
.gitignore
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog Changelog: mention YUV range negotiation 2024-09-08 14:07:59 +02:00
configure configure: improve check for POSIX ioctl 2024-09-01 18:01:43 +02:00
CONTRIBUTING.md
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INSTALL.md
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MAINTAINERS MAINTAINERS: remove Aurelien and David from matroska* 2024-09-08 17:51:39 +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.