Daisy Capture Input Call
Daisy Capture Input Call
- Subject: Daisy Capture Input Call
- From: Craig Bakalian <email@hidden>
- Date: Wed, 4 Feb 2004 06:13:27 -0500
Hi,
In the example daisy there is an input callback that looks like this->
OSStatus captureInputIOProc (AudioDeviceID inDevice, const
AudioTimeStamp* inNow, const AudioBufferList* inInputData,
const AudioTimeStamp* inInputTime,
AudioBufferList* outOutputData, const AudioTimeStamp* inOutputTime,
void* device)
{
AudioDeviceInfoPtr dInfo = device;
if((inInputData != NULL) && (inInputData->mNumberBuffers > 0))
{
if (dInfo->captureInput)
{
if (dInfo->captureCurrentPtr +
inInputData->mBuffers[0].mDataByteSize < dInfo->captureStorage +
kSizeOfCaptureBuffer)
{
BlockMove(inInputData->mBuffers[0].mData, dInfo->captureCurrentPtr,
inInputData->mBuffers[0].mDataByteSize);
dInfo->captureCurrentPtr += inInputData->mBuffers[0].mDataByteSize;
dInfo->captureTotalBytesCaptured +=
inInputData->mBuffers[0].mDataByteSize;
}
else
{
dInfo->captureInput = false;
}
}
}
return (noErr);
}
Is the BlockMove(inInputData->mBuffers[0].mData,
dInfo->captureCurrentPtr, inInputData->mBuffers[0].mDataByteSize)
copying data the way a memcpy would in C. Is BlockMove a C++ call? I
am not familiar with it, sorry.
Craig Bakalian
www.eThinkingCap.com
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