mfplat: Implement media type wrapping.

dlls/mfplat/main.c

@@ -559,6 +559,7 @@ static const char *debugstr_attr(const GUID *guid)
         X(MF_SOURCE_READER_ENABLE_TRANSCODE_ONLY_TRANSFORMS),
         X(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS),
         X(MF_MT_PIXEL_ASPECT_RATIO),
+        X(MF_MT_WRAPPED_TYPE),
         X(MF_MT_AVG_BITRATE),
         X(MF_SOURCE_READER_ENABLE_ADVANCED_VIDEO_PROCESSING),
         X(MF_PD_PMPHOST_CONTEXT),

dlls/mfplat/mediatype.c

@@ -1515,3 +1515,75 @@ BOOL WINAPI MFCompareFullToPartialMediaType(IMFMediaType *full_type, IMFMediaTyp
 
     return result;
 }
+
+/***********************************************************************
+ *      MFWrapMediaType (mfplat.@)
+ */
+HRESULT WINAPI MFWrapMediaType(IMFMediaType *original, REFGUID major, REFGUID subtype, IMFMediaType **ret)
+{
+    IMFMediaType *mediatype;
+    UINT8 *buffer;
+    UINT32 size;
+    HRESULT hr;
+
+    TRACE("%p, %s, %s, %p.\n", original, debugstr_guid(major), debugstr_guid(subtype), ret);
+
+    if (FAILED(hr = MFGetAttributesAsBlobSize((IMFAttributes *)original, &size)))
+        return hr;
+
+    if (!(buffer = heap_alloc(size)))
+        return E_OUTOFMEMORY;
+
+    if (FAILED(hr = MFGetAttributesAsBlob((IMFAttributes *)original, buffer, size)))
+        goto failed;
+
+    if (FAILED(hr = MFCreateMediaType(&mediatype)))
+        goto failed;
+
+    if (FAILED(hr = IMFMediaType_SetGUID(mediatype, &MF_MT_MAJOR_TYPE, major)))
+        goto failed;
+
+    if (FAILED(hr = IMFMediaType_SetGUID(mediatype, &MF_MT_SUBTYPE, subtype)))
+        goto failed;
+
+    if (FAILED(hr = IMFMediaType_SetBlob(mediatype, &MF_MT_WRAPPED_TYPE, buffer, size)))
+        goto failed;
+
+    *ret = mediatype;
+
+failed:
+    heap_free(buffer);
+
+    return hr;
+}
+
+/***********************************************************************
+ *      MFUnwrapMediaType (mfplat.@)
+ */
+HRESULT WINAPI MFUnwrapMediaType(IMFMediaType *wrapper, IMFMediaType **ret)
+{
+    IMFMediaType *mediatype;
+    UINT8 *buffer;
+    UINT32 size;
+    HRESULT hr;
+
+    TRACE("%p, %p.\n", wrapper, ret);
+
+    if (FAILED(hr = MFCreateMediaType(&mediatype)))
+        return hr;
+
+    if (FAILED(hr = IMFMediaType_GetAllocatedBlob(wrapper, &MF_MT_WRAPPED_TYPE, &buffer, &size)))
+    {
+        IMFMediaType_Release(mediatype);
+        return hr;
+    }
+
+    hr = MFInitAttributesFromBlob((IMFAttributes *)mediatype, buffer, size);
+    CoTaskMemFree(buffer);
+    if (FAILED(hr))
+        return hr;
+
+    *ret = mediatype;
+
+    return S_OK;
+}

dlls/mfplat/mfplat.spec

@@ -152,9 +152,9 @@
 @ stub MFUnblockThread
 @ stdcall MFUnlockPlatform()
 @ stdcall MFUnlockWorkQueue(long)
-@ stub MFUnwrapMediaType
+@ stdcall MFUnwrapMediaType(ptr ptr)
 @ stub MFValidateMediaTypeSize
-@ stub MFWrapMediaType
+@ stdcall MFWrapMediaType(ptr ptr ptr ptr)
 @ stub MFllMulDiv
 @ stub PropVariantFromStream
 @ stub PropVariantToStream

dlls/mfplat/tests/mfplat.c

@@ -2616,6 +2616,62 @@ static void test_attributes_serialization(void)
     IMFAttributes_Release(dest);
 }
 
+static void test_wrapped_media_type(void)
+{
+    IMFMediaType *mediatype, *mediatype2;
+    UINT32 count, type;
+    HRESULT hr;
+    GUID guid;
+
+    hr = MFCreateMediaType(&mediatype);
+    ok(hr == S_OK, "Failed to create media type, hr %#x.\n", hr);
+
+    hr = MFUnwrapMediaType(mediatype, &mediatype2);
+    ok(hr == MF_E_ATTRIBUTENOTFOUND, "Unexpected hr %#x.\n", hr);
+
+    hr = IMFMediaType_SetUINT32(mediatype, &GUID_NULL, 1);
+    ok(hr == S_OK, "Failed to set attribute, hr %#x.\n", hr);
+    hr = IMFMediaType_SetUINT32(mediatype, &DUMMY_GUID1, 2);
+    ok(hr == S_OK, "Failed to set attribute, hr %#x.\n", hr);
+
+    hr = IMFMediaType_SetGUID(mediatype, &MF_MT_MAJOR_TYPE, &MFMediaType_Video);
+    ok(hr == S_OK, "Failed to set GUID value, hr %#x.\n", hr);
+
+    hr = MFWrapMediaType(mediatype, &MFMediaType_Audio, &IID_IUnknown, &mediatype2);
+    ok(hr == S_OK, "Failed to create wrapped media type, hr %#x.\n", hr);
+
+    hr = IMFMediaType_GetGUID(mediatype2, &MF_MT_MAJOR_TYPE, &guid);
+    ok(hr == S_OK, "Failed to get major type, hr %#x.\n", hr);
+    ok(IsEqualGUID(&guid, &MFMediaType_Audio), "Unexpected major type.\n");
+
+    hr = IMFMediaType_GetGUID(mediatype2, &MF_MT_SUBTYPE, &guid);
+    ok(hr == S_OK, "Failed to get subtype, hr %#x.\n", hr);
+    ok(IsEqualGUID(&guid, &IID_IUnknown), "Unexpected major type.\n");
+
+    hr = IMFMediaType_GetCount(mediatype2, &count);
+    ok(hr == S_OK, "Failed to get item count, hr %#x.\n", hr);
+    ok(count == 3, "Unexpected count %u.\n", count);
+
+    hr = IMFMediaType_GetItemType(mediatype2, &MF_MT_WRAPPED_TYPE, &type);
+    ok(hr == S_OK, "Failed to get item type, hr %#x.\n", hr);
+    ok(type == MF_ATTRIBUTE_BLOB, "Unexpected item type.\n");
+
+    IMFMediaType_Release(mediatype);
+
+    hr = MFUnwrapMediaType(mediatype2, &mediatype);
+    ok(hr == S_OK, "Failed to unwrap, hr %#x.\n", hr);
+
+    hr = IMFMediaType_GetGUID(mediatype, &MF_MT_MAJOR_TYPE, &guid);
+    ok(hr == S_OK, "Failed to get major type, hr %#x.\n", hr);
+    ok(IsEqualGUID(&guid, &MFMediaType_Video), "Unexpected major type.\n");
+
+    hr = IMFMediaType_GetGUID(mediatype, &MF_MT_SUBTYPE, &guid);
+    ok(hr == MF_E_ATTRIBUTENOTFOUND, "Unexpected hr %#x.\n", hr);
+
+    IMFMediaType_Release(mediatype);
+    IMFMediaType_Release(mediatype2);
+}
+
 START_TEST(mfplat)
 {
     CoInitialize(NULL);
@@ -2648,6 +2704,7 @@ START_TEST(mfplat)
     test_MFCalculateImageSize();
     test_MFCompareFullToPartialMediaType();
     test_attributes_serialization();
+    test_wrapped_media_type();
 
     CoUninitialize();
 }

include/mfapi.h

@@ -105,6 +105,7 @@ DEFINE_GUID(MF_MT_ALL_SAMPLES_INDEPENDENT, 0xc9173739, 0x5e56, 0x461c, 0xb7, 0x1
 DEFINE_GUID(MF_MT_USER_DATA,               0xb6bc765f, 0x4c3b, 0x40a4, 0xbd, 0x51, 0x25, 0x35, 0xb6, 0x6f, 0xe0, 0x9d);
 DEFINE_GUID(MF_MT_FRAME_RATE_RANGE_MIN,    0xd2e7558c, 0xdc1f, 0x403f, 0x9a, 0x72, 0xd2, 0x8b, 0xb1, 0xeb, 0x3b, 0x5e);
 DEFINE_GUID(MF_MT_FRAME_RATE_RANGE_MAX,    0xe3371d41, 0xb4cf, 0x4a05, 0xbd, 0x4e, 0x20, 0xb8, 0x8b, 0xb2, 0xc4, 0xd6);
+DEFINE_GUID(MF_MT_WRAPPED_TYPE,            0x4d3f7b23, 0xd02f, 0x4e6c, 0x9b, 0xee, 0xe4, 0xbf, 0x2c, 0x6c, 0x69, 0x5d);
 
 DEFINE_GUID(MFT_CATEGORY_VIDEO_DECODER,   0xd6c02d4b, 0x6833, 0x45b4, 0x97, 0x1a, 0x05, 0xa4, 0xb0, 0x4b, 0xab, 0x91);
 DEFINE_GUID(MFT_CATEGORY_VIDEO_ENCODER,   0xf79eac7d, 0xe545, 0x4387, 0xbd, 0xee, 0xd6, 0x47, 0xd7, 0xbd, 0xe4, 0x2a);
@@ -236,6 +237,8 @@ HRESULT WINAPI MFUnlockWorkQueue(DWORD queue);
 HRESULT WINAPI MFTUnregister(CLSID clsid);
 HRESULT WINAPI MFTUnregisterLocal(IClassFactory *factory);
 HRESULT WINAPI MFGetPluginControl(IMFPluginControl**);
+HRESULT WINAPI MFWrapMediaType(IMFMediaType *original, REFGUID major, REFGUID subtype, IMFMediaType **wrapped);
+HRESULT WINAPI MFUnwrapMediaType(IMFMediaType *wrapped, IMFMediaType **original);
 
 #if defined(__cplusplus)
 }