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libVA implementation to dump metadata and slices from videos
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# libva-dump libva-dump allows dumping metadata and slices from videos. ## Usage To get started with libva-dump, a video player that supports VAAPI is required, such as VLC. Specific environment variables need to be set in order to use and configure the backend: * LIBVA_DRIVER_NAME: the libVA backend to use, must be set to "dump" * DUMP_COUNT: the number of frames to dump (defaults to 3 if unspecified) ## Example script An example script that takes the video to dump as first argument follows: ``` #!/bin/sh export LIBVA_DRIVER_NAME=dump export DUMP_COUNT=250 vlc "$1" > frames.h ``` ## Output libva-dump will save dumped slices in the current directory, named following the "slice-%d.dump" format. This can be modified in `src/dump.c` if needed.