I want to mux webcam capture with audio capture in an avi mux and write that file to disk.
This works in graphedit.
I try to recreate this in c# with directshowlib. This works so far but the only without the microphone capture. My microphone filter is created but has no pins. I tried this on two different laptops. My code for the microphone filter:
Guid microphonFilter = new Guid("{E30629D2-27E5-11CE-875D-00608CB78066}");
IBaseFilter pMikrofonRealtekHighDefinitionAudio = (IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(microphonFilter));
hr = pGraph.AddFilter(pMikrofonRealtekHighDefinitionAudio, "Mikrofon (Realtek High Definition Audio) ");
I also tried:
IBaseFilter microphonFilter = (IBaseFilter) new AudioRecord();
My code for finding pins:
static IPin GetPin(IBaseFilter filter, string pinname)
{
IEnumPins epins;
int hr = filter.EnumPins(out epins);
checkHR(hr, "Can't enumerate pins");
IntPtr fetched = Marshal.AllocCoTaskMem(4);
IPin[] pins = new IPin[1];
while (epins.Next(1, pins, fetched) == 0)
{
PinInfo pinfo;
pins[0].QueryPinInfo(out pinfo);
bool found = (pinfo.name == pinname);
DsUtils.FreePinInfo(pinfo);
if (found)
return pins[0];
}
checkHR(-1, "Pin not found");
return null;
}