SetBuffer
status_t SetBuffer(BPositionIO* buffer);
void SetBuffer(capture_stream_format format, capture_buffer_mode mode,
fCapture.SetBuffer(C_RADEON_CAPTURE_CCIR656, kMode[mode], fBuffer0, fBuffer1, fBufferLength, fBufferBytesPerRow >> 1);
fBuffer->SetBuffer(buffer);
SetBuffer(buffer);
void SetBuffer(DMABuffer* buffer)
operation->SetBuffer(dmaBuffer);