本文整理汇总了C++中CAStreamBasicDescription::NumberChannelStreams方法的典型用法代码示例。如果您正苦于以下问题：C++ CAStreamBasicDescription::NumberChannelStreams方法的具体用法？C++ CAStreamBasicDescription::NumberChannelStreams怎么用？C++ CAStreamBasicDescription::NumberChannelStreams使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CAStreamBasicDescription的用法示例。
在下文中一共展示了CAStreamBasicDescription::NumberChannelStreams方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
// this should NOT be called while I/O is in process
void AUBufferList::UseExternalBuffer(const CAStreamBasicDescription &format, const AudioUnitExternalBuffer &buf)
{
UInt32 alignedSize = buf.size & ~0xF;
if (mMemory != NULL && alignedSize >= mAllocatedBytes) {
// don't accept the buffer if we already have one and it's big enough
// if we don't already have one, we don't need one
Byte *oldMemory = mMemory;
mMemory = buf.buffer;
mAllocatedBytes = alignedSize;
// from Allocate(): nBytes = nStreams * nFrames * format.mBytesPerFrame;
// thus: nFrames = nBytes / (nStreams * format.mBytesPerFrame)
mAllocatedFrames = mAllocatedBytes / (format.NumberChannelStreams() * format.mBytesPerFrame);
mExternalMemory = true;
free(oldMemory);
}
}