Re: [PATCH v4 0/4] MR2258: winegstreamer: Support WMV DMO decoder.

[Rémi Bernon (＠rbernon)]

Rémi Bernon (@rbernon) commented about dlls/winegstreamer/wmv_decoder.c:
> -
>        .height = 1080,
> -
>    },
> -
>
> };
> -
>
> struct wg_transform *transform;
> -
>
> struct wmv_decoder *decoder;
> HRESULT hr;
>
> TRACE("outer %p, out %p.\n", outer, out);
> - if (!(impl = calloc(1, sizeof(*impl))))
> - if (!(transform = wg_transform_create(&input_format, &output_format)))
> - {
> -
>    ERR_(winediag)("GStreamer doesn't support WMV decoding, please install appropriate plugins.\n");
> -
>    return E_FAIL;
> - }
> - wg_transform_destroy(transform);

You also need to support the creation failure in the test `CoCreateInstance` call.