When calling AudioUnitRender, we're passing a list of AudioBuffers:
struct AudioBuffer
{
UInt32 mNumberChannels; // <-- why this?
UInt32 mDataByteSize;
void* mData;
};
Why does it
have to
contain
an
mNumberChannels
member?
After all, we've already set up the stream format with an
AudioStreamBasicDescription
, including
mChannelsPerFrame
:
struct AudioStreamBasicDescription
{
Float64 mSampleRate;
AudioFormatID mFormatID;
AudioFormatFlags mFormatFlags;
UInt32 mBytesPerPacket;
UInt32 mFramesPerPacket;
UInt32 mBytesPerFrame;
UInt32 mChannelsPerFrame; // <-- ... when we have this?
UInt32 mBitsPerChannel;
UInt32 mReserved;
};
Thanks.
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