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Chapter 3 - Image Compression Manager / Image Compression Manager Reference

Image Compression Manager Functions / Changing Sequence-Compression Parameters

GetCSequenceKeyFrameRate

The GetCSequenceKeyFrameRate function lets you determine the current key frame rate of a sequence.

pascal OSErr GetCSequenceKeyFrameRate (ImageSequence seqID, 
                                       long *keyframerate);

seqID

Contains the unique sequence identifier that was returned by the CompressSequenceBegin function (described on page 3-100).

keyframerate

Contains a pointer to a long integer that specifies the maximum number of frames allowed between key frames. Key frames provide points from which a temporally compressed sequence may be decompressed.

SEE ALSO

You can set the key frame rate of a sequence with the SetCSequenceKeyFrameRate function, described in the previous section.

RESULT CODES

noErr	0	No error
paramErr	-50	Invalid parameter specified