Re: [PATCH v3 0/5] MR9575: winegstreamer: Reject SetOutputType with a different number of channels.

[Yuxuan Shui (＠yshui)]

On Thu Nov 27 15:56:07 2025 +0000, Elizabeth Figura wrote:
> +    if (IsEqualGUID(&decoder->input_type.formattype,
> &FORMAT_WaveFormatEx) &&
> +            IsEqualGUID(&type->formattype, &FORMAT_WaveFormatEx))
> +    {
> +        WORD current_nchannels = ((WAVEFORMATEX *)decoder->input_type.pbFormat)->nChannels;
> +        WORD incomming_nchannels = ((WAVEFORMATEX *)type->pbFormat)->nChannels;
> +        if (current_nchannels != incomming_nchannels)
> +            return DMO_E_TYPE_NOT_ACCEPTED;
> +    }
>
> That's a bit of an odd test, because as written it implies that using a
> different formattype is legal, which I would be surprised to find that
> it is.

added a test case for mismatching `formattype`