Q When I send compressed images over Ethernet, CompressSequenceBegin
doesn't fill in the ImageDescription, which is needed at the other end of the conference link to
DecompressSequenceBegin. Is this a bug?
A CompressSequenceBegin doesn't actually modify the handle that you pass.
Instead, QuickTime makes note of the handle that's passed, but it doesn't actually modify the
contents until the first call that actually compresses data, such as CompressSequenceFrame. At that point,
the handle is changed. If you can postpone dealing with the image descriptor until after the first call
that compresses data, your code should work.
[May 01 1995]
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