I tried to make video call (with auto show and transmit) and have an
exception of read adress 0x00000000 in dshow_factory_create_stream function
on
dshow_stream_destroy((pjmedia_vid_dev_stream *)strm);
line.
I started to debug and found out that in function create_filter_graph in
line
hr = CoCreateInstance(&CLSID_FilterGraph, NULL, CLSCTX_INPROC,
&IID_IFilterGraph, (LPVOID *)&graph->filter_graph);
we have hr = 0x800401F0 (need to run CoInitialize). So I add the followinf
after it
if (hr == 0x800401F0)
{
// retry
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
hr = CoCreateInstance(&CLSID_FilterGraph, NULL, CLSCTX_INPROC,
&IID_IFilterGraph, (LPVOID *)&graph->filter_graph);
}
And it started to work fine.
So I think that function dshow_factory_create_stream is called from other
thread, where was not CoInialized run.
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