Re: [PATCH v15 0/2] MR2778: mfmediaengine: Add support for video effects.

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mfmediaengine/tests/mfmediaengine.c:
> -
> - hr = IMFMediaEngineEx_InsertVideoEffect(media_engine_ex, (IUnknown *)&video_effect->IMFTransform_iface, FALSE);
> - todo_wine ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> - todo_wine EXPECT_REF(&video_effect->IMFTransform_iface, 2);
> -
> - hr = IMFMediaEngineEx_InsertVideoEffect(media_engine_ex, (IUnknown *)&video_effect2->IMFTransform_iface, FALSE);
> - todo_wine ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> - todo_wine EXPECT_REF(&video_effect2->IMFTransform_iface, 2);
> -
> - if (FAILED(hr))
> - {
> -
>    goto done;
> - }
> -
> - hr = IMFMediaEngineEx_SetSourceFromByteStream(media_engine_ex, stream, url);
> - ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);

This should use a BSTR.