Trickplay Failing on Orange Pi 5 Plus (RKMPP) – Disabling Hardware Acceleration Helps

[Alex Hope O'Connor]

I'm running Jellyfin on an Orange Pi 5 Plus ( RK3588 ), which should support hardware acceleration via
rkmpp vpp_rkrga and the rest of the Rockchip stack. But I've been dealing with non-stop issues when Jellyfin tries to generate trickplay thumbnails. When mjpeg_rkmpp was enabled, ffmpeg would repeatedly fail and flood the logs with errors like:

• ffmpeg image extraction failed
  
• Error muxing a packet
  
• System.ArgumentException: Can't create trickplay from 0 images
  

It would just loop on the same file endlessly, filling up /tmp with over 12GB of leftover image junk. Jellyfin clearly wasn’t cleaning anything up, and it never recovered.
So I tried switching from mjpeg_rkmpp to the software mjpeg encoder, thinking it might stabilize things. But that made it worse. Trickplay broke completely. ffmpeg started throwing errors like:

• Invalid output format nv12 for hwframe download
  
• Nothing was written into output file
  
• Can't create trickplay from 0 images
  

At that point, trickplay failed on every video, not just the problematic ones.
Eventually I disabled hardware acceleration entirely from the Jellyfin dashboard:
Admin Dashboard → Playback → Transcoding → Hardware Acceleration: Disabled
I also cleared out any custom ffmpeg arguments.
After that, trickplay started working — at least partially. ffmpeg switched to software decoding and I saw successful log messages like:

• Finished creation of trickplay files for /media/dataB/movies/....avi
  
• Finished creation of trickplay files for /media/dataB/movies/.....avi
  

If anyone has trickplay working consistently on RK3588 (especially with rkmpp), I’d love to know what your setup looks like.

[gnattu]

Can you check which ffmpeg you are using? On rockchip the jellyfin-ffmpeg is required and you should not use something else.

> I also cleared out any custom ffmpeg arguments.

Also, what is this? Why there is any custom arguments?