public void RenderAudio(IGraphBuilder pGraphBuilder, IBaseFilter splitter)
{
var pPin = DsUtils.GetPin(splitter, PinDirection.Output, new[] { MediaType.Audio });
if (pPin != null)
{
_streamSelect = splitter as IAMStreamSelect;
if (_streamSelect != null && BuildSoundRenderer(pGraphBuilder))
{
var pInputPin = DsUtils.GetPin(_directSoundBaseFilter, PinDirection.Input);
var hr = pGraphBuilder.Connect(pPin, pInputPin);
Marshal.ReleaseComObject(pInputPin);
if (hr == DsHlp.S_OK || hr == DsHlp.VFW_S_PARTIAL_RENDER)
{
_audioStreams.AddRange(_streamSelect.GetSelectableStreams().Where(s => s.MajorType == MediaType.Audio));
}
else
{
pGraphBuilder.RemoveFilter(_directSoundBaseFilter);
Marshal.FinalReleaseComObject(_directSoundBaseFilter);
_directSoundBaseFilter = null;
_basicAudio = null;
}
}
Marshal.ReleaseComObject(pPin);
}
}
private void CollectSubpictureStreamsInfo()
{
_subpicutureStreams.AddRange(_streamSelect.GetSelectableStreams().Where(s => s.MajorType == MediaType.Subtitle));
}