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consider: mpv should use ffmpeg-full to include things like v4l2 support, etc #244565

@colemickens

Description

@colemickens

Describe the bug

Trying to use mpv to decode v4l2 doesn't work:

nu> ssh $"cole@(^tailscale ip --4 rocky)" "dd if=/dev/video0" | mpv av://v4l2:/dev/stdin                                                                                    
[lavf] Unknown lavf format v4l2                                                                                                                                             
Failed to recognize file format.   

I suspect this is because mpv pull in ffmpeg_5 and doesn't set it to have full deps, so the ffmpeg in mpv doesn't have v4l2 support.

Steps To Reproduce

Steps to reproduce the behavior:

  1. Try to use mpv with v4l2.

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