Fast Playback / Rate in Jit.movie

Kellerkraft's icon

Hey there,

I want to play back Movies really fast. jit.movie's rate parameter starts producing weird inconsistent results at rates greater than 8x.

Following things I tried:
- Codec QT Photojpg
- Codec DXV
- Resizing to tiny resolution -> I guess it's no Bottleneck due to HDDspeed or Footage
- Different CLocks of a Qmetro...

I get consistent 60fps on my jit.fpsgui... Any suggestions? Is it due to QuickTimes playback Restrictions or internal working? I might try dumping the Video to single Frames/Matrices and playing them manually in OpenGL. But before trying I might have skipped something here.

Thanks for any help!

Rob Ramirez's icon
Max Patch
Copy patch and select New From Clipboard in Max.

yes, for extreme rate changes, you may be better off disabling playback (@autostart 0), and triggering via the jump or frame messages (use jump_true or frame_true if your movie codec does not have a keyframe for every frame). also, make sure your movie file does not have an audio track, as that can slow down processing.