Rémi Bernon (@rbernon) commented about dlls/winegstreamer/h264_decoder.c:
if (decoder->allocator_initialized) return S_OK;
- IMFTransform_SetInputType(decoder->copier, 0, decoder->output_type, 0);
- IMFTransform_SetOutputType(decoder->copier, 0, decoder->output_type, 0);
I know it's unlikely going to fail but please don't swallow errors.