I am referring to the filter called "scene filter" that outputs frames from a video as images to a specified folder/directory.
When I use it on a .mov file (720p @ 30fps, recorded on my iPhone) and I want to extract the frames with a recording ratio of 1 (I want to output every single frame), I only get about 15 or so good ones, then the output png files seem to be sporadically empty (0 bytes). I suspect this is because it also tries to play the video in real-time and my CPU can't keep up, so it drops frames on the image output side as well as on the display (it is a 2.4GHz 3rd gen Core i7 and not running other major processes, so not a slow PC).
Is there a way to let it know to output the frames to disk ONLY (I don't care to see it displayed while outputting) and to take as much time as it needs to do it reliably?
I'm using the GUI features to do the output with Tools->Preferences, then selecting Show Settings: All and then configuring it under Video/Filters/Scene filter and switching on this filter under Video/Filters. I've also tried with the following two options under Video unchecked: "Drop late frames" and "Skip frames" but still I get a significant percentage of empty images in the output.
EDIT: During display when outputting the video sometimes gets a bit garbled on certain sections (looks like mpeg errors) and the garbledness is also reflected in some of the non-zero size frames - the ones that actually wrote a picture to disk. The .mov extension could be the issue, not sure. Will try this on Mac and possibly move this to the cross platform category if the problem persists.
Any help would be appreciated
