I'm trying to write a routine (in Delphi, though that's not the problem)
that will read a MOV file and extract the information that lets me
figure out the duration of the video, and the size of the video. This is
to replace a different utility I have that basically loads the movie and
then I can query the values. It works, but runs into problems on a
server that has no audio subsystem. In fact, it used to work with
Quicktime 6.5.2 (this is Windows, btw...) but breaks under Quicktime 7
with an error about AudioDeviceContext.
I found the Quicktime File Format PDF on the Apple site, and I have a
routine that fairly quickly can get the duration for the MOV files I
have. However, the video size is proving more problematic.
I'm finding the mvhd and then a tkhd in my file. However, I'm not
clear on _which_ tkhd I should use when there is more than one.
Is there a more generic tutorial or explanation than the Quicktime file
format PDF available online? Or is there some rule of thumb that I just
don't know?
Helpful pointers appreciated (no pun intended)...
Thanks...
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