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e9b4f4461f
There are three possible names for the functions requested; they only differ in an extension: "", "EXT" or "KHR". Yet vk_load_info contained pointers to all these strings. This is wasteful and this commit changes it to avoid the latter two strings. This saves 6353B of strings, 1776 B of .data.rel.ro as well as 5328 B due to the removed relocations (corresponding to 2 * 111 removed pointers) in lavc/vulkan_decode.o alone (ff_vk_load_functions() is inlined in lavfi/vulkan_filter.c, lavu/hwcontext_vulkan.c and lavc_vulkan_decode.c, so the savings are three times this for shared builds; for static builds, the number may be smaller depending upon whether strings are deduplicated). Reviewed-by: Lynne <dev@lynne.ee> 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.