mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-09-16 08:36:51 +02:00
994bc08325897a7bc86cbb4f8975e1c09272f5d2
Fixes an issue uncovered since 0ce413af9c
where flags were properly separated but without the objcflags_filter
being initialized, if add_objcflags is called early as part of
add_allcflags, it would lead to the append() function using an empty
filter and trying to call the flag instead, leading to errors like:
./configure: line 976: -fsanitize=address: command not found
./configure: line 976: -fno-omit-frame-pointer: command not found
…
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
andqt-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.
Languages
C
89.9%
Assembly
8.1%
Makefile
1.3%
C++
0.3%
Objective-C
0.1%
Other
0.1%