With a fresh config, my VLC in bookworm would play the file with a bit less than 1 frame per second... console output:
$ VLC media player 3.0.18 Vetinari (revision 3.0.13-8-g41878ff4f2)
[000055d9bd39e550] main libvlc: Running vlc with the default interface. Use
'cvlc' to use vlc without interface.
[000055d9bd43f4b0] main playlist: playlist is empty
[00007fbcd4004d30] gl gl: Initialized libplacebo v4.208.0 (API v208)
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_17
libva info: va_openDriver() returns 0
[00007fbcd4004d30] gl gl: Initialized libplacebo v4.208.0 (API v208)
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_17
libva info: va_openDriver() returns 0
[00007fbcf000e340] avcodec decoder: Using OpenGL/VAAPI backend for VDPAU for
hardware decoding
The system here is a Intel Pentium Silver J5005 with built-in "UHD
Graphics 605" (Gemini Lake).
My workarounds: one of
* explicitly configure VLC for XVideo output - no GPU acceleration but
at least an acceptable picture; (this would have been what I expected
VLC to do out-of-the-box)
* use "mpv --hwdec=vaapi"
* use the Flatpak VLC version ("org.videolan.VLC") - though that pulls
in more than 1 GB of platform data, if you didn't use flatpak before.
Best regards,
Viktor.
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