.mov to jpeg conversion

eagle112800 wrote:
I want to convert an hour and a half of .mov footage to JPEGs, but QT will only allow me to convert 65554 frames and then it starts from 1 again. I don't know why it will not let me convert as many frames as I want I have QT Pro so I am not sure how to make it do what I want?

If in the best case your video is in PAL format then 25fps for an hour-and-a-half movie would result in 135,000 frames or JPEG images. For NTSC at 30fps it would be even worse resulting in 162,000 frames/JPEGs.

What on earth do you want/need with so many JPEGs? Even if it could be done the Finder on your Mac would probably die trying to open or manipulate a folder with so many files in it.

If as you indicate QuickTime has a limit it is imposing of 65554 frames, then a workaround would be to split the movie in to three parts, and do each third separately.

It maybe that an AppleScript approach might be best if you don't need every frame. I don't know if QuickTime Player will support the required commands but something along the lines of

timestamp = 1
Repeat
go to timestamp
capture frame
save frame as new timestamp.jpg
timestamp = timestamp + one second
if timestamp > length of video then
exit
end if
end repeat

Export...
Movie to Image Sequence
Click the Options button...
Pick your format (JPEG, TIFF, etc)...
Change the Frames per second:
to 1.
To reduce the file size you can click the next Options button and lower the Quality settings or pick a target size.