On Sun, Jul 21, 2024 at 01:09:24PM GMT, José Maldonado wrote:
> This is rare. In my case, using mpv+yt-dlp for YouTube videos work
> fine (using 4.4.4p3 and 4.4.4p5).

This isn't firefox tho, which is were I do experience issues. My
ffmpeg+mpv works fine, even mpv+yt-dlp with your YouTube video.
ffmpeg+firefox doesn't.

> Log:
> 
>  mpv https://www.youtube.com/watch\?v\=PXFXEGLi3wg
>  (+) Video --vid=1 (*) (vp9 1920x1080 59.940fps)
>  (+) Audio --aid=1 --alang=eng (*) (aac 2ch 44100Hz)
>      Subs  --sid=1 --slang=live_chat 'json' (null) (external)
> File tags:
>  Uploader: Edu Camps
>  Channel_URL: https://www.youtube.com/channel/UCV6dTKLL29jPIggEvjIMPzw
> [ffmpeg/video] vp9: No support for codec vp9 profile 0.
> AO: [sndio] 44100Hz stereo 2ch s16
> VO: [gpu] 1920x1080 yuv420p

I don't believe you're doing hardware decoding here. This is how it
looks in my machine:

 (+) Video --vid=1 (*) (vp9 3840x2160 59.940fps)
 (+) Audio --aid=1 --alang=eng (*) (aac 2ch 44100Hz)
     Subs  --sid=1 --slang=live_chat 'json' (null) (external)
File tags:
 Uploader: Edu Camps
 Channel_URL: https://www.youtube.com/channel/UCV6dTKLL29jPIggEvjIMPzw
Using hardware decoding (vaapi).
AO: [sndio] 44100Hz stereo 2ch s16
VO: [gpu] 3840x2160 vaapi[nv12]

You need both --hwdec=auto in mpv and one of graphics/intel-media-driver
or graphics/intel-vaapi-driver for Intel cards, depending on your
graphics card. idk what the requirements are for AMD cards.