diff --git a/mingw-w64-headers/include/mfapi.h b/mingw-w64-headers/include/mfapi.h
index af278df..1fb8ec6 100644
--- a/mingw-w64-headers/include/mfapi.h
+++ b/mingw-w64-headers/include/mfapi.h
@@ -340,6 +340,20 @@
 DEFINE_GUID(MFT_CATEGORY_VIDEO_PROCESSOR, 0x302ea3fc,0xaa5f,0x47f9,0x9f,0x7a,0xc2,0x18,0x8b,0xb1,0x63,0x2);
 DEFINE_GUID(MFT_CATEGORY_OTHER,           0x90175d57,0xb7ea,0x4901,0xae,0xb3,0x93,0x3a,0x87,0x47,0x75,0x6f);
 
+DEFINE_GUID(MFSampleExtension_CleanPoint,          0x9cdf01d8,0xa0f0,0x43ba,0xb0,0x77,0xea,0xa0,0x6c,0xbd,0x72,0x8a);
+DEFINE_GUID(MFSampleExtension_Discontinuity,       0x9cdf01d9,0xa0f0,0x43ba,0xb0,0x77,0xea,0xa0,0x6c,0xbd,0x72,0x8a);
+DEFINE_GUID(MFSampleExtension_Token,               0x8294da66,0xf328,0x4805,0xb5,0x51,0x00,0xde,0xb4,0xc5,0x7a,0x61);
+DEFINE_GUID(MFSampleExtension_DescrambleData,      0x43483be6,0x4903,0x4314,0xb0,0x32,0x29,0x51,0x36,0x59,0x36,0xfc);
+DEFINE_GUID(MFSampleExtension_SampleKeyID,         0x9ed713c8,0x9b87,0x4b26,0x82,0x97,0xa9,0x3b,0x0c,0x5a,0x8a,0xcc);
+DEFINE_GUID(MFSampleExtension_GenKeyFunc,          0x441ca1ee,0x6b1f,0x4501,0x90,0x3a,0xde,0x87,0xdf,0x42,0xf6,0xed);
+DEFINE_GUID(MFSampleExtension_GenKeyCtx,           0x188120cb,0xd7da,0x4b59,0x9b,0x3e,0x92,0x52,0xfd,0x37,0x30,0x1c);
+DEFINE_GUID(MFSampleExtension_PacketCrossOffsets,  0x2789671d,0x389f,0x40bb,0x90,0xd9,0xc2,0x82,0xf7,0x7f,0x9a,0xbd);
+DEFINE_GUID(MFSampleExtension_Interlaced,          0xb1d5830a,0xdeb8,0x40e3,0x90,0xfa,0x38,0x99,0x43,0x71,0x64,0x61);
+DEFINE_GUID(MFSampleExtension_BottomFieldFirst,    0x941ce0a3,0x6ae3,0x4dda,0x9a,0x08,0xa6,0x42,0x98,0x34,0x06,0x17);
+DEFINE_GUID(MFSampleExtension_RepeatFirstField,    0x304d257c,0x7493,0x4fbd,0xb1,0x49,0x92,0x28,0xde,0x8d,0x9a,0x99);
+DEFINE_GUID(MFSampleExtension_SingleField,         0x9d85f816,0x658b,0x455a,0xbd,0xe0,0x9f,0xa7,0xe1,0x5a,0xb8,0xf9);
+DEFINE_GUID(MFSampleExtension_DerivedFromTopField, 0x6852465a,0xae1c,0x4553,0x8e,0x9b,0xc3,0x42,0x0f,0xcb,0x16,0x37);
+
 EXTERN_C const GUID MR_BUFFER_SERVICE;
 
 #ifdef __cplusplus