Up: SGI movie Frequently Asked Questions (FAQ)
Next: -29- How do I write a program to play a movie entirely from memory?
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Subject: -28- When writing frames to a movie with the Movie Library,
if we fix the image track parameters, does the byte size
of the frame remain constant across frames?
Date: Mon Mar 25 10:04:18 PST 1996
In general, no. The compression codecs return variable size byte
counts for the frames they compress.
However, in later versions of the movie library (eg, IRIX 6.2),
some codecs support generation of a constant bitrate. Use the
parameter DM_IMAGE_BITRATE when creating an image track. (Note
that this is not supported by all codecs; CinePak is the only
one currently supporting this feature.)
Up: SGI movie Frequently Asked Questions (FAQ)
Next: -29- How do I write a program to play a movie entirely from memory?
Previous: -27- When programming with the Movie Library, can we insert and delete frames from a playing movie?