Jordan Pope

This should be relatively simple... though it has me stumped. I have a patch using sprintf and a counter to record a series of video clips incrementally (clip1.mov, clip2.mov, etc.). I had been using jit.qt.grab to write the files, which was working fine until I found that when the object was writing a video file, it did not output anything else of the videostream (i.e. I could not be reading any data from the cam while it was writing a video clip).

So I switched to jit.qt.record, which allows me to write video while doing whatever else I like with the video input. The problem I've run into now is that whenever I send a stop message to jit.qt.record it stops the recording AND deletes the video file. Interestingly, it doesn't delete the file when I send it a "write" command and name/locate the file myself (rather than sending it "sprintf filename%d" -> "prepend write" -> "append whatever").

Has any only else had this problem? Is there some other way to use one video device to write video and provide data for motion tracking, event triggering, etc.?

recording-segmented-video

Update: It looks like my inability to save video clips with jit.qt.record has to do with using codecs for compression... Seems strange that I should be able to get this working with jit.qt.grab but can't save compressed clips with jit.qt.record - what can I do?

recording segmented video