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2014/10/15 ¤U¤È 10:08:59

iphone Programming Glossary: filedatasize

How to reverse an audio file?

http://stackoverflow.com/questions/6593118/how-to-reverse-an-audio-file

kAudioFileFlags_EraseFile outputAudioFile set up input file AudioFileID inputAudioFile OSStatus theErr noErr UInt64 fileDataSize 0 AudioStreamBasicDescription theFileFormat UInt32 thePropertySize sizeof theFileFormat theErr AudioFileOpenURL __bridge.. __bridge CFURLRef self.recordedAudioUrl kAudioFileReadPermission 0 inputAudioFile thePropertySize sizeof fileDataSize theErr AudioFileGetProperty inputAudioFile kAudioFilePropertyAudioDataByteCount thePropertySize fileDataSize UInt32 dataSize.. sizeof fileDataSize theErr AudioFileGetProperty inputAudioFile kAudioFilePropertyAudioDataByteCount thePropertySize fileDataSize UInt32 dataSize fileDataSize void theData malloc dataSize Read data into buffer UInt32 readPoint dataSize UInt32 writePoint..

AudioQueue how to find out playback length of queued data

http://stackoverflow.com/questions/7375309/audioqueue-how-to-find-out-playback-length-of-queued-data

NSObject AudioFileID audioFile int _sampleRate int _totalFrames UInt64 _framesPerPacket UInt64 _totalPackets UInt64 fileDataSize AudioFilePacketTableInfo _packetInfo int _fileLength AudioStreamBasicDescription _fileDataFormat NSFileHandle _fileHandle.. hint audioFile if theErr ReportAudioError theErr UInt32 thePropertySize sizeof theFileFormat thePropertySize sizeof fileDataSize theErr AudioFileGetProperty audioFile kAudioFilePropertyAudioDataByteCount thePropertySize fileDataSize if theErr ReportAudioError.. sizeof fileDataSize theErr AudioFileGetProperty audioFile kAudioFilePropertyAudioDataByteCount thePropertySize fileDataSize if theErr ReportAudioError theErr theErr AudioFileGetProperty audioFile kAudioFilePropertyAudioDataPacketCount thePropertySize..