From: Conor McCarthy <cmccarthy@codeweavers.com> Windows does not use MFT_SET_TYPE_TEST_ONLY when checking for transform type support. Some transforms change the available output types based on the input type, and connection resolution can depend on this. --- dlls/mf/topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/dlls/mf/topology.c b/dlls/mf/topology.c index 572d4d426d3..93d5eceb6d2 100644 --- a/dlls/mf/topology.c +++ b/dlls/mf/topology.c @@ -1889,7 +1889,7 @@ static HRESULT WINAPI type_handler_IsMediaTypeSupported(IMFMediaTypeHandler *ifa if (handler->output) return IMFTransform_SetOutputType(handler->transform, handler->stream, in_type, MFT_SET_TYPE_TEST_ONLY); else - return IMFTransform_SetInputType(handler->transform, handler->stream, in_type, MFT_SET_TYPE_TEST_ONLY); + return IMFTransform_SetInputType(handler->transform, handler->stream, in_type, 0); } if (FAILED(hr = IMFMediaTypeHandler_GetCurrentMediaType(iface, &type))) -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/10009