Question on ExtAudioFileRead and AudioBuffer for iPhone SDK
- by backspacer
I'm developing an iPhone app that uses the Extended Audio File Services. I try to use ExtAudioFileRead to read the audio file, and store the data in an AudioBufferList structure.
AudioBufferList is defined as:
struct AudioBufferList {
UInt32 mNumberBuffers;
AudioBuffer mBuffers[1];
};
typedef struct AudioBufferList AudioBufferList;
and AudioBuffer is defined as
struct AudioBuffer {
UInt32 mNumberChannels;
UInt32 mDataByteSize;
void* mData;
};
typedef struct AudioBuffer AudioBuffer;
I want to manipulate the mData but I wonder what does the void* mean. Why is it void*? How can I decide what data type is actually stored in mData?
