Hi,
I'm using the MovieAudioExtraction API's to extract the sound data from a movie. The function MovieAudioExtractionFillBuffer needs a pointer to an AudioBufferList which looks like:
As you can see, the AudioBufferList needs an array of AudioBuffers. In my case I only need one buffer. AudioBuffer looks like this:
I was wondering if anyone has used the AudioBuffer structure and could explain how to use its members. I want to extract audio from a movie and store it in an array or possibly a file. Thanks,
-- Mel.
I'm using the MovieAudioExtraction API's to extract the sound data from a movie. The function MovieAudioExtractionFillBuffer needs a pointer to an AudioBufferList which looks like:
Code:
typedef struct AudioBufferList {
[INDENT]UInt32 mNumberBuffers;
AudioBuffer mBuffers[1];[/INDENT]
} AudioBufferList;As you can see, the AudioBufferList needs an array of AudioBuffers. In my case I only need one buffer. AudioBuffer looks like this:
Code:
typedef struct AudioBuffer {
[INDENT]UInt32 mNumberChannels;
UInt32 mDataByteSize;
void* mData;[/INDENT]
} AudioBuffer;I was wondering if anyone has used the AudioBuffer structure and could explain how to use its members. I want to extract audio from a movie and store it in an array or possibly a file. Thanks,
-- Mel.