HRESULT FFmpegInteropMSS::CreateAudioStreamDescriptor()

in FFmpegInterop/Source/FFmpegInteropMSS.cpp [573:600]

• 26 lines of code
• 8 McCabe index (conditional complexity)

HRESULT FFmpegInteropMSS::CreateAudioStreamDescriptor(bool forceAudioDecode)
{
	if (avAudioCodecCtx->codec_id == AV_CODEC_ID_AAC && !forceAudioDecode)
	{
		if (avAudioCodecCtx->extradata_size == 0)
		{
			audioStreamDescriptor = ref new AudioStreamDescriptor(AudioEncodingProperties::CreateAacAdts(avAudioCodecCtx->sample_rate, avAudioCodecCtx->channels, (unsigned int)avAudioCodecCtx->bit_rate));
		}
		else
		{
			audioStreamDescriptor = ref new AudioStreamDescriptor(AudioEncodingProperties::CreateAac(avAudioCodecCtx->sample_rate, avAudioCodecCtx->channels, (unsigned int)avAudioCodecCtx->bit_rate));
		}
		audioSampleProvider = ref new MediaSampleProvider(m_pReader, avFormatCtx, avAudioCodecCtx);
	}
	else if (avAudioCodecCtx->codec_id == AV_CODEC_ID_MP3 && !forceAudioDecode)
	{
		audioStreamDescriptor = ref new AudioStreamDescriptor(AudioEncodingProperties::CreateMp3(avAudioCodecCtx->sample_rate, avAudioCodecCtx->channels, (unsigned int)avAudioCodecCtx->bit_rate));
		audioSampleProvider = ref new MediaSampleProvider(m_pReader, avFormatCtx, avAudioCodecCtx);
	}
	else
	{
		// We always convert to 16-bit audio so set the size here
		audioStreamDescriptor = ref new AudioStreamDescriptor(AudioEncodingProperties::CreatePcm(avAudioCodecCtx->sample_rate, avAudioCodecCtx->channels, 16));
		audioSampleProvider = ref new UncompressedAudioSampleProvider(m_pReader, avFormatCtx, avAudioCodecCtx);
	}

	return (audioStreamDescriptor != nullptr && audioSampleProvider != nullptr) ? S_OK : E_OUTOFMEMORY;
}