HRESULT UncompressedSampleProvider::DecodeAVPacket()

in FFmpegInterop/Source/UncompressedSampleProvider.cpp [88:123]

• 30 lines of code
• 6 McCabe index (conditional complexity)

HRESULT UncompressedSampleProvider::DecodeAVPacket(DataWriter^ dataWriter, AVPacket* avPacket, int64_t& framePts, int64_t& frameDuration)
{
	HRESULT hr = S_OK;
	bool fGotFrame  = false;
	AVPacket *pPacket = avPacket;

	while (SUCCEEDED(hr))
	{
		hr = GetFrameFromFFmpegDecoder(pPacket);
		pPacket = nullptr;
		if (SUCCEEDED(hr))
		{
			if (hr == S_FALSE)
			{
				// If the decoder didn't give an initial frame we still need
				// to feed it more frames. Keep S_FALSE as the result
				if (fGotFrame)
				{
					hr = S_OK;
				}
				break;
			}
			// Update the timestamp if the packet has one
			else if (m_pAvFrame->pts != AV_NOPTS_VALUE)
			{
				framePts = m_pAvFrame->pts;
				frameDuration = m_pAvFrame->pkt_duration;
			}
			fGotFrame = true;

			hr = ProcessDecodedFrame(dataWriter);
		}
	}

	return hr;
}