get audio track layout of QuickTime movie

Posted by rainerstandke on Stack Overflow See other posts from Stack Overflow or by rainerstandke
Published on 2010-06-03T04:44:42Z Indexed on 2010/06/03 4:54 UTC
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objective-c

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quicktime

I need to determine how many channels a sound track has in a QuickTime movie. I can get to the track, then I am stuck. I wonder if the answer would be in a QTFormatDescription, but I can't figure out how to get one for the track. I am using Objective-C on Mac OS 10.6.

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