在 2019/12/10 18:42, Eric Hassold 写道:
> Hi all,
> 
> Tracking issue with one small program using Media Foundation was
> failing at runtime only if compiled with Mingw, I found out that
> definitions for some GUID in mfidl.h are incorrect (or mixed, with one
> ID getting the value of another).
> 
> Namely, at mfidl.h:3407, GUID:
>   MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID
> is defined as:
>   0xc60ac5fe, 0x252a, 0x478f, 0xa0, 0xef, 0xbc, 0x8f, 0xa5, 0xf7, 0xca, 0xd3
> but this is actually the UUID for MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE
> (while definition for MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE itself is
> missing).
> 
> Correct values should be:
> EXTERN_GUID( MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, 0xc60ac5fe, 0x252a,
> 0x478f, 0xa0, 0xef, 0xbc, 0x8f, 0xa5, 0xf7, 0xca, 0xd3);
> EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID,
> 0x8ac3587a, 0x4ae7, 0x42d8, 0x99, 0xe0, 0x0a, 0x60, 0x13, 0xee, 0xf9,
> 0x0f);
> 
> Attached is patch for mfidl.idl (need to regenerate mfidl.h, not
> included in patch).
> 
>

Thanks. Pushed this one.

Side note: WIDL 4.19 doesn't seem to like `WINBOOL` and reports syntax
errors likes this:
```
WIDL mediaobj.idl:20: error: syntax error, unexpected aIDENTIFIER
```

I replaced all `BOOL` with `WINBOOL` to generate the header. I also had
to be careful not to commit such changes by accident. I hope someone is
going to fix this issue.



-- 
Best regards,
LH_Mouse

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