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).
Regards,
Eric
diff --git a/mingw-w64-headers/include/mfidl.idl
b/mingw-w64-headers/include/mfidl.idl
index c440152a..97de9a4f 100644
--- a/mingw-w64-headers/include/mfidl.idl
+++ b/mingw-w64-headers/include/mfidl.idl
@@ -671,4 +671,5 @@
cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_CATEGORY, 0x77f
cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_HW_SOURCE,
0xde7046ba,0x54d6,0x4487,0xa2,0xa4,0xec,0x7c,0xd,0x1b,0xd1,0x63);")
cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_MAX_BUFFERS,
0x7dd9b730,0x4f2d,0x41d5,0x8f,0x95,0xc,0xc9,0xa9,0x12,0xba,0x26);")
cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK,
0x58f0aad8,0x22bf,0x4f8a,0xbb,0x3d,0xd2,0xc4,0x97,0x8c,0x6e,0x2f);")
-cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID,
0xc60ac5fe,0x252a,0x478f,0xa0,0xef,0xbc,0x8f,0xa5,0xf7,0xca,0xd3);")
+cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE,
0xc60ac5fe,0x252a,0x478f,0xa0,0xef,0xbc,0x8f,0xa5,0xf7,0xca,0xd3);")
+cpp_quote("EXTERN_GUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID,
0x8ac3587a,0x4ae7,0x42d8,0x99,0xe0,0x0a,0x60,0x13,0xee,0xf9,0x0f);")
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