bool TPCircularBufferCopyAudioBufferList(TPCircularBuffer *buffer, const AudioBufferList *inBufferList, const AudioTimeStamp *inTimestamp, UInt32 frames, AudioStreamBasicDescription *audioDescription) {
int byteCount = inBufferList->mBuffers[0].mDataByteSize;
if ( frames != kTPCircularBufferCopyAll ) {
byteCount = frames * audioDescription->mBytesPerFrame;
assert(byteCount <= inBufferList->mBuffers[0].mDataByteSize);
}
AudioBufferList *bufferList = TPCircularBufferPrepareEmptyAudioBufferList(buffer, inBufferList->mNumberBuffers, byteCount, inTimestamp);
if ( !bufferList ) return false;
for ( int i=0; i<bufferList->mNumberBuffers; i++ ) {
memcpy(bufferList->mBuffers[i].mData, inBufferList->mBuffers[i].mData, byteCount);
}
TPCircularBufferProduceAudioBufferList(buffer, NULL);
return true;
}
AudioBufferList *TPCircularBufferPrepareEmptyAudioBufferListWithAudioFormat(TPCircularBuffer *buffer, AudioStreamBasicDescription *audioFormat, UInt32 frameCount, const AudioTimeStamp *timestamp) {
return TPCircularBufferPrepareEmptyAudioBufferList(buffer,
(audioFormat->mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? audioFormat->mChannelsPerFrame : 1,
audioFormat->mBytesPerFrame * frameCount,
timestamp);
}
