Re: [PATCH v3 0/4] MR7570: mfreadwrite: Implement encoder creation. (Part 1)

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mfreadwrite/writer.c:
> +            entry = &stream->converter;
> +            break;
> +        default:
> +            LeaveCriticalSection(&writer->cs);
> +            return MF_E_INVALIDINDEX;
> +    }
> +
> +    if (!entry->transform)
> +    {
> +        LeaveCriticalSection(&writer->cs);
> +        return MF_E_INVALIDINDEX;
> +    }
> +
> +    IMFTransform_AddRef((*transform = entry->transform));
> +    if (category)
> +        *category = entry->category;
> Category GUIDs are fixed, so if we know for sure that you can only have one encoder and one converter at most, we can simply return corresponding constants here.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/7570#note_117140