mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2026-01-12 00:06:51 +08:00
60684932fbc76dc4651d788f27e5e7b6ccfc2621
Only two fields of AVTextFormatSection are ever modified: entries_to_show and show_all_entries (they are only used by ffprobe; the graph printing code always prints everything). These fields do not belong into AVTextFormatSection, they are more ffprobe-internal (and if the graph printing code ever made use of them, these fields could very well be per GraphPrintContext). This commit therefore moves them out of AVTextFormatSection and adds a callback to AVTextFormatContext to decide which elements to discard. This also allows to make the AVTextFormatSections const. This also fixes a race when initializing the sections for graphprint. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
…
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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
89.8%
Assembly
8.2%
Makefile
1.3%
C++
0.3%
Objective-C
0.1%
Other
0.1%