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2014/10/15 ¤U¤È 10:09:11

iphone Programming Glossary: fmtdesc

Drawing waveform with AVAssetReader

http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader

item CMAudioFormatDescriptionRef formatDesc objectAtIndex i const AudioStreamBasicDescription fmtDesc CMAudioFormatDescriptionGetStreamBasicDescription item if fmtDesc sampleRate fmtDesc mSampleRate channelCount fmtDesc mChannelsPerFrame.. objectAtIndex i const AudioStreamBasicDescription fmtDesc CMAudioFormatDescriptionGetStreamBasicDescription item if fmtDesc sampleRate fmtDesc mSampleRate channelCount fmtDesc mChannelsPerFrame NSLog @ channels u bytes packet u sampleRate f fmtDesc.. AudioStreamBasicDescription fmtDesc CMAudioFormatDescriptionGetStreamBasicDescription item if fmtDesc sampleRate fmtDesc mSampleRate channelCount fmtDesc mChannelsPerFrame NSLog @ channels u bytes packet u sampleRate f fmtDesc mChannelsPerFrame..