some random weird problems when batch exporting - sometimes

balintlaczko / VideoAnalysis

Non-realtime video analysis, exporting motiongrams and various quantitative features of movement in the video file.

https://www.uio.no/ritmo/english/research/labs/fourms/downloads/software/VideoAnalysis/

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some random weird problems when batch exporting - sometimes #59

Closed balintlaczko closed 4 years ago

balintlaczko commented 4 years ago

typically:

black images (not all)
inadequate cropping
the cv.jit.mean bug from #53

We should look carefully into what exactly happens in the batch processing when finish a video and start the next one.

aleksati commented 4 years ago

About the cropping:

Seems like the issue here is that when exporting, the [umenu], and menu item bang, has higher priority than Read, Framecount, and moviedim etc. from the jit.movie. This means that the correct moviedim doesn't get "updated" in the [crop-coll] before framedumping the video. A solution to this should be to store the moviedims from the start, in a [coll] possibly, and call them from the menu item "bang" at the beginning of every framedump.

I will try and make something for this.

balintlaczko commented 4 years ago

OK, that seems like good to have anyway. For the scheduling problem, have you considered using [defer] or [deferlow]? I think during an "offline" render nothing should be in the scheduler thread. I don't even know how [umenu] got there, but it most certainly shouldn't have. Will take a look too!