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This commit introduces a video filter `mestimate_d3d12` that provides hardware-accelerated motion estimation using DirectX 12 Video Encoding APIs. The filter leverages GPU hardware motion estimation capabilities to achieve significant performance improvements over the existing software-based mestimate filter. Sample Command Line: 1. Basic mestimate_d3d12 functionality ``` ffmpeg_g.exe -hwaccel d3d12va -i test.mp4 -vf mestimate_d3d12=mb_size=16 -f null - ``` 2. Motion vector visualization ``` ffmpeg -hwaccel d3d12va -i input.mp4 -vf "mestimate_d3d12,hwdownload,format=nv12,codecview=mv=pf" -c:v libx264 output.mp4 ```
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.