ffmpeg/FFmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-09-19 21:06:42 +00:00
Code Issues Packages Projects Releases Wiki Activity
116,035 Commits 36 Branches 398 Tags 535 MiB
C 90.3%
Assembly 7.8%
Makefile 1.3%
C++ 0.2%
Objective-C 0.2%
Other 0.1%
baf3123c1c
Go to file
Zhao Zhili baf3123c1c avutil/executor: Allowing thread_count be zero 
Before the patch, disable threads support at configure/build time
was the only method to force zero thread in executor. However,
it's common practice for libavcodec to run on caller's thread when
user specify thread number to one. And for WASM environment, whether
threads are supported needs to be detected at runtime. So executor
should support zero thread at runtime.

A single thread executor can be useful, e.g., to handle network
protocol. So we can't take thread_count one as zero thread, which
disabled a valid usercase.

Other libraries take -threads 0 to mean auto. Executor as a low
level utils doesn't do cpu detect. So take thread_count zero as
zero thread, literally.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2024-06-27 20:54:42 +08:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avutil/stereo3d: add a new allocator function that returns a size 2024-06-25 00:01:05 -03:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffplay_renderer: use correct NULL value for Vulkan type 2024-06-25 00:19:03 +02:00
libavcodec lavc/vvc: Validate IBC block vector 2024-06-27 20:38:34 +08:00
libavdevice avdevice/avfoundation: add external video devices 2024-06-20 18:52:06 +02:00
libavfilter avfilter/qsvvpp: Remove unreachable code 2024-06-19 13:23:07 +02:00
libavformat avformat/matroskadec: don't use sizeof(AVStereo3D) 2024-06-25 00:01:11 -03:00
libavutil avutil/executor: Allowing thread_count be zero 2024-06-27 20:54:42 +08:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale/output: Avoid undefined overflow in yuv2rgb_write_full() 2024-06-26 20:49:36 +02:00
presets
tests checkasm/vvc_alf: ensure right and bottom boundaries are not overwritten by asm 2024-06-25 19:32:17 +08:00
tools tools/target_dec_fuzzer: Adjust threshold for MV30 2024-06-26 20:49:33 +02:00
.gitattributes
.gitignore
.mailmap .mailmap: Update my mailmap entry 2024-02-23 00:17:21 +01:00
Changelog avcodec: add external enc libvvenc for H266/VVC 2024-06-15 21:00:05 +08:00
configure configure: fix alignment of conditional lib dependencies 2024-06-27 15:12:35 +05:30
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: Update the entries for the release maintainer for FFmpeg 2024-06-19 12:36:02 +02:00
Makefile riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
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.