Nikolay Sivov (@nsivov) commented about dlls/winegstreamer/media_source.c:
- hr = IMFPresentationDescriptor_Clone(source->pres_desc, descriptor); + else if (SUCCEEDED(hr = MFCreatePresentationDescriptor(source->stream_count, source->descriptors, descriptor))) + { + if (FAILED(hr = IMFPresentationDescriptor_SetUINT64(*descriptor, &MF_PD_DURATION, source->duration))) + WARN("Failed to set presentation descriptor MF_PD_DURATION, hr %#lx\n", hr); + + for (i = 0; i < source->stream_count; ++i) + { + if (!source->streams[i]->active) + continue; + if (FAILED(hr = IMFPresentationDescriptor_SelectStream(*descriptor, i))) + WARN("Failed to select stream %u, hr %#lx\n", i, hr); + } + + hr = S_OK; + } Why does it check for "active"? Before this change all streams were selected. I don't think CreatePresentationDescriptor() should reflect source state changes.
-- https://gitlab.winehq.org/wine/wine/-/merge_requests/2742#note_32166