Reading audio with Extended Audio File Services (ExtAudioFileRead)

Question

I am working on understanding Core Audio, or rather: Extended Audio File Services

Here, I want to use ExtAudioFileRead() to read some audio data from a file

Answer 1

I also had the same problem with mNumberBuffers > 1,,... My work around involved creating my own internal buffer:

something like:

char buffer1[byteSize]; char buffer2[byteSize]; ......

you could also use pointers to make things easier,..like:

buffer[index][byteSize];

then you would have to iterate through them manually and fill them up on the main thread to avoid glitches in audio.

ExtAudioFileRead will only fill buffer[0] in the AudioBufferList, you could then have that pointing to different manually allocated buffers as the audio plays.

hope this helps.