I've been using QuickTime Pro Movie Recording quite a bit lately
and seem to have stumbled upon something I just don't understand.
My home machine and office machine are identical in every important
respect. However, Movie Recording on my office computer has a much
smaller window than my home machine.
The likely difference between your machines is CPU speed. QuickTime
Player tries to make movies that have a low enough data rate that you
could, say, put them on a website. By default it tries to compress
to H264. However, if your machine is too slow to capture and
transcode to H264 (which is expensive), it will default to MPEG4
video (part 2 MPEG4), which is less CPU intensive. It might also
choose a smaller video size depending on CPU speed (so for instance,
you'd get a 640x480 window on a fast machine, and a 320x240 window on
a slower one). The only way to get totally consistent video sizes is
to go into prefs and choose "Device Native" for quality. This will
record in the device native format. E.g. if you're recording from an
iSight camera, it will be YUV. If from a DV camera, DV. After the
capture, you can then export this movie using Player Pro's export
feature.
-Brad Ford
QuickTime Engineering
Normally, this would be inconsequential but finding no way to
adjust or set the size of the window anywhere in the UI or Prefs, I
am genuinely puzzled.
Confounding variables include:
o Eyeglasses 1.3.6 installed
o ShowMacster 1.8 installed
o Conference Recorder 2.0.2 installed
These three "extras" are primarily to extend iChat but iGlasses is
available during Movie Recording. The iChat video window has no
apparent influence upon the Movie Recording window.
Stumped.
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GCSU Library
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