¡@
2014/10/15 ¤U¤È 10:15:03
iphone Programming Glossary: trackoutputExtract iPod Library raw PCM samples and play with sound effects http://stackoverflow.com/questions/4796643/extract-ipod-library-raw-pcm-samples-and-play-with-sound-effects NSMutableData alloc init reader startReading while reader.status AVAssetReaderStatusReading AVAssetReaderTrackOutput trackOutput AVAssetReaderTrackOutput reader.outputs objectAtIndex 0 CMSampleBufferRef sampleBufferRef trackOutput copyNextSampleBuffer.. trackOutput AVAssetReaderTrackOutput reader.outputs objectAtIndex 0 CMSampleBufferRef sampleBufferRef trackOutput copyNextSampleBuffer if sampleBufferRef CMBlockBufferRef blockBufferRef CMSampleBufferGetDataBuffer sampleBufferRef size_t..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader NSMutableData alloc init reader startReading while reader.status AVAssetReaderStatusReading AVAssetReaderTrackOutput trackOutput AVAssetReaderTrackOutput reader.outputs objectAtIndex 0 CMSampleBufferRef sampleBufferRef trackOutput copyNextSampleBuffer.. trackOutput AVAssetReaderTrackOutput reader.outputs objectAtIndex 0 CMSampleBufferRef sampleBufferRef trackOutput copyNextSampleBuffer if sampleBufferRef what I gonna do with this Please help me iphone objective c core audio ipod waveform.. 0 NSInteger samplesPerPixel sampleRate 50 while reader.status AVAssetReaderStatusReading AVAssetReaderTrackOutput trackOutput AVAssetReaderTrackOutput reader.outputs objectAtIndex 0 CMSampleBufferRef sampleBufferRef trackOutput copyNextSampleBuffer..
|