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Anton Khirnov 78f46065d8 fftools/ffmpeg: add special syntax for loading filter options from files Many filters accept user-provided data that is cumbersome to provide as text strings - e.g. binary files or very long text. For that reason such filters typically provide a option whose value is the path from which the filter loads the actual data. However, filters doing their own IO internally is a layering violation that the callers may not expect, and is thus best avoided. With the recently introduced graph segment parsing API, loading option values from files can now be handled by the caller. This commit makes use of the new API in ffmpeg CLI. Any option name in the filtergraph syntax can now be prefixed with a slash '/'. This will cause ffmpeg to interpret the value as the path to load the actual value from.		2023-02-12 10:34:45 +01:00
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doc	fftools/ffmpeg: add special syntax for loading filter options from files	2023-02-12 10:34:45 +01:00
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fftools	fftools/ffmpeg: add special syntax for loading filter options from files	2023-02-12 10:34:45 +01:00
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libavfilter	lavfi/graphparser: reimplement avfilter_graph_parse* using new API	2023-02-12 10:33:52 +01:00
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tools	tools: add general_assembly.pl	2023-02-12 10:14:22 +01:00
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Changelog	fftools/ffmpeg: add special syntax for loading filter options from files	2023-02-12 10:34:45 +01:00
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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.