Method process

src/cinder/audio/SamplePlayerNode.cpp:182–213

}

void BufferPlayerNode::process( Buffer *buffer )
{
	const auto &frameRange = getProcessFramesRange();

	size_t readPos = mReadPos;
	size_t numFrames = frameRange.second - frameRange.first;
	size_t readEnd = mLoop ? mLoopEnd.load() : mNumFrames;

	size_t readCount = 0;
	if( readPos <= readEnd ) {
		readCount = min( readEnd - readPos, numFrames );
		buffer->copyOffset( *mBuffer, readCount, frameRange.first, readPos );
	}

	if( readCount < numFrames  ) {
		// End of File. If looping copy from beginning, otherwise disable and mark mIsEof.
		if( mLoop ) {
			size_t readBegin = mLoopBegin;
			size_t readLeft = min( numFrames - readCount, mNumFrames - readBegin );

			buffer->copyOffset( *mBuffer, readLeft, readCount, readBegin );
			mReadPos.store( readBegin + readLeft );
		}
		else {
			mIsEof = true;
			mReadPos = mNumFrames;
			disable();
		}
	}
	else
		mReadPos += readCount;
}

// ----------------------------------------------------------------------------------------------------
// FilePlayerNode