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How to decode mData in AudioBuffer?

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How to decode mData in AudioBuffer?

Subject: How to decode mData in AudioBuffer?
From: lbland <email@hidden>
Date: Thu, 27 Apr 2006 09:05:05 -0700

hi-

I want to get to the values from a microphone. I got all the way down to retrieving a AudioBufferList and thus AudioBuffer struct which contains the data, but the actual values are encoded in mData:

typedef struct AudioBuffer {
UInt32 mNumberChannels;
UInt32 mDataByteSize;
void* mData;
} AudioBuffer;

Is there a way to decode mData? Either directly or via a function that parses it into a known array type?

for example:

(UInt16 *) mData)[3]

for the 4th sample value in the buffer segment? (or (UInt16 *) mData) [7] for the 2nd channel 4th sample value in a interleaved stereo buffer, etc.

thanks!-

-lance

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