/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sw=2 sts=2 et cindent: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "WMFUtils.h" #include "mozilla/StandardInteger.h" #include "mozilla/RefPtr.h" #include "prlog.h" #include "nsThreadUtils.h" #include "WinUtils.h" #include "nsWindowsHelpers.h" using namespace mozilla::widget; namespace mozilla { struct GuidToName { GUID guid; const char* name; }; #define GUID_TO_NAME_ENTRY(g) { g, #g } #define INTERFACE_TO_NAME_ENTRY(i) {IID_##i, #i } GuidToName GuidToNameTable[] = { GUID_TO_NAME_ENTRY(MF_MT_MAJOR_TYPE), GUID_TO_NAME_ENTRY(MF_MT_MAJOR_TYPE), GUID_TO_NAME_ENTRY(MF_MT_SUBTYPE), GUID_TO_NAME_ENTRY(MF_MT_ALL_SAMPLES_INDEPENDENT), GUID_TO_NAME_ENTRY(MF_MT_FIXED_SIZE_SAMPLES), GUID_TO_NAME_ENTRY(MF_MT_COMPRESSED), GUID_TO_NAME_ENTRY(MF_MT_SAMPLE_SIZE), GUID_TO_NAME_ENTRY(MF_MT_WRAPPED_TYPE), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_NUM_CHANNELS), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_SAMPLES_PER_SECOND), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_AVG_BYTES_PER_SECOND), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_BLOCK_ALIGNMENT), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_BITS_PER_SAMPLE), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_VALID_BITS_PER_SAMPLE), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_SAMPLES_PER_BLOCK), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_CHANNEL_MASK), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_FOLDDOWN_MATRIX), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_PEAKREF), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_PEAKTARGET), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_AVGREF), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_AVGTARGET), GUID_TO_NAME_ENTRY(MF_MT_AUDIO_PREFER_WAVEFORMATEX), GUID_TO_NAME_ENTRY(MF_MT_AAC_PAYLOAD_TYPE), GUID_TO_NAME_ENTRY(MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION), GUID_TO_NAME_ENTRY(MF_MT_FRAME_SIZE), GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE), GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE_RANGE_MAX), GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE_RANGE_MIN), GUID_TO_NAME_ENTRY(MF_MT_PIXEL_ASPECT_RATIO), GUID_TO_NAME_ENTRY(MF_MT_DRM_FLAGS), GUID_TO_NAME_ENTRY(MF_MT_PAD_CONTROL_FLAGS), GUID_TO_NAME_ENTRY(MF_MT_SOURCE_CONTENT_HINT), GUID_TO_NAME_ENTRY(MF_MT_VIDEO_CHROMA_SITING), GUID_TO_NAME_ENTRY(MF_MT_INTERLACE_MODE), GUID_TO_NAME_ENTRY(MF_MT_TRANSFER_FUNCTION), GUID_TO_NAME_ENTRY(MF_MT_VIDEO_PRIMARIES), GUID_TO_NAME_ENTRY(MF_MT_CUSTOM_VIDEO_PRIMARIES), GUID_TO_NAME_ENTRY(MF_MT_YUV_MATRIX), GUID_TO_NAME_ENTRY(MF_MT_VIDEO_LIGHTING), GUID_TO_NAME_ENTRY(MF_MT_VIDEO_NOMINAL_RANGE), GUID_TO_NAME_ENTRY(MF_MT_GEOMETRIC_APERTURE), GUID_TO_NAME_ENTRY(MF_MT_MINIMUM_DISPLAY_APERTURE), GUID_TO_NAME_ENTRY(MF_MT_PAN_SCAN_APERTURE), GUID_TO_NAME_ENTRY(MF_MT_PAN_SCAN_ENABLED), GUID_TO_NAME_ENTRY(MF_MT_AVG_BITRATE), GUID_TO_NAME_ENTRY(MF_MT_AVG_BIT_ERROR_RATE), GUID_TO_NAME_ENTRY(MF_MT_MAX_KEYFRAME_SPACING), GUID_TO_NAME_ENTRY(MF_MT_DEFAULT_STRIDE), GUID_TO_NAME_ENTRY(MF_MT_PALETTE), GUID_TO_NAME_ENTRY(MF_MT_USER_DATA), GUID_TO_NAME_ENTRY(MF_MT_AM_FORMAT_TYPE), GUID_TO_NAME_ENTRY(MF_MT_MPEG_START_TIME_CODE), GUID_TO_NAME_ENTRY(MF_MT_MPEG2_PROFILE), GUID_TO_NAME_ENTRY(MF_MT_MPEG2_LEVEL), GUID_TO_NAME_ENTRY(MF_MT_MPEG2_FLAGS), GUID_TO_NAME_ENTRY(MF_MT_MPEG_SEQUENCE_HEADER), GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_SRC_PACK_0), GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_CTRL_PACK_0), GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_SRC_PACK_1), GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_CTRL_PACK_1), GUID_TO_NAME_ENTRY(MF_MT_DV_VAUX_SRC_PACK), GUID_TO_NAME_ENTRY(MF_MT_DV_VAUX_CTRL_PACK), GUID_TO_NAME_ENTRY(MF_MT_ARBITRARY_HEADER), GUID_TO_NAME_ENTRY(MF_MT_ARBITRARY_FORMAT), GUID_TO_NAME_ENTRY(MF_MT_IMAGE_LOSS_TOLERANT), GUID_TO_NAME_ENTRY(MF_MT_MPEG4_SAMPLE_DESCRIPTION), GUID_TO_NAME_ENTRY(MF_MT_MPEG4_CURRENT_SAMPLE_ENTRY), GUID_TO_NAME_ENTRY(MF_MT_ORIGINAL_4CC), GUID_TO_NAME_ENTRY(MF_MT_ORIGINAL_WAVE_FORMAT_TAG), GUID_TO_NAME_ENTRY(MFMediaType_Audio), GUID_TO_NAME_ENTRY(MFMediaType_Video), GUID_TO_NAME_ENTRY(MFMediaType_Protected), GUID_TO_NAME_ENTRY(MFMediaType_SAMI), GUID_TO_NAME_ENTRY(MFMediaType_Script), GUID_TO_NAME_ENTRY(MFMediaType_Image), GUID_TO_NAME_ENTRY(MFMediaType_HTML), GUID_TO_NAME_ENTRY(MFMediaType_Binary), GUID_TO_NAME_ENTRY(MFMediaType_FileTransfer), GUID_TO_NAME_ENTRY(MFVideoFormat_AI44), GUID_TO_NAME_ENTRY(MFVideoFormat_ARGB32), GUID_TO_NAME_ENTRY(MFVideoFormat_AYUV), GUID_TO_NAME_ENTRY(MFVideoFormat_DV25), GUID_TO_NAME_ENTRY(MFVideoFormat_DV50), GUID_TO_NAME_ENTRY(MFVideoFormat_DVH1), GUID_TO_NAME_ENTRY(MFVideoFormat_DVSD), GUID_TO_NAME_ENTRY(MFVideoFormat_DVSL), GUID_TO_NAME_ENTRY(MFVideoFormat_H264), GUID_TO_NAME_ENTRY(MFVideoFormat_I420), GUID_TO_NAME_ENTRY(MFVideoFormat_IYUV), GUID_TO_NAME_ENTRY(MFVideoFormat_M4S2), GUID_TO_NAME_ENTRY(MFVideoFormat_MJPG), GUID_TO_NAME_ENTRY(MFVideoFormat_MP43), GUID_TO_NAME_ENTRY(MFVideoFormat_MP4S), GUID_TO_NAME_ENTRY(MFVideoFormat_MP4V), GUID_TO_NAME_ENTRY(MFVideoFormat_MPG1), GUID_TO_NAME_ENTRY(MFVideoFormat_MSS1), GUID_TO_NAME_ENTRY(MFVideoFormat_MSS2), GUID_TO_NAME_ENTRY(MFVideoFormat_NV11), GUID_TO_NAME_ENTRY(MFVideoFormat_NV12), GUID_TO_NAME_ENTRY(MFVideoFormat_P010), GUID_TO_NAME_ENTRY(MFVideoFormat_P016), GUID_TO_NAME_ENTRY(MFVideoFormat_P210), GUID_TO_NAME_ENTRY(MFVideoFormat_P216), GUID_TO_NAME_ENTRY(MFVideoFormat_RGB24), GUID_TO_NAME_ENTRY(MFVideoFormat_RGB32), GUID_TO_NAME_ENTRY(MFVideoFormat_RGB555), GUID_TO_NAME_ENTRY(MFVideoFormat_RGB565), GUID_TO_NAME_ENTRY(MFVideoFormat_RGB8), GUID_TO_NAME_ENTRY(MFVideoFormat_UYVY), GUID_TO_NAME_ENTRY(MFVideoFormat_v210), GUID_TO_NAME_ENTRY(MFVideoFormat_v410), GUID_TO_NAME_ENTRY(MFVideoFormat_WMV1), GUID_TO_NAME_ENTRY(MFVideoFormat_WMV2), GUID_TO_NAME_ENTRY(MFVideoFormat_WMV3), GUID_TO_NAME_ENTRY(MFVideoFormat_WVC1), GUID_TO_NAME_ENTRY(MFVideoFormat_Y210), GUID_TO_NAME_ENTRY(MFVideoFormat_Y216), GUID_TO_NAME_ENTRY(MFVideoFormat_Y410), GUID_TO_NAME_ENTRY(MFVideoFormat_Y416), GUID_TO_NAME_ENTRY(MFVideoFormat_Y41P), GUID_TO_NAME_ENTRY(MFVideoFormat_Y41T), GUID_TO_NAME_ENTRY(MFVideoFormat_YUY2), GUID_TO_NAME_ENTRY(MFVideoFormat_YV12), GUID_TO_NAME_ENTRY(MFVideoFormat_YVYU), GUID_TO_NAME_ENTRY(MFAudioFormat_PCM), GUID_TO_NAME_ENTRY(MFAudioFormat_Float), GUID_TO_NAME_ENTRY(MFAudioFormat_DTS), GUID_TO_NAME_ENTRY(MFAudioFormat_Dolby_AC3_SPDIF), GUID_TO_NAME_ENTRY(MFAudioFormat_DRM), GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudioV8), GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudioV9), GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudio_Lossless), GUID_TO_NAME_ENTRY(MFAudioFormat_WMASPDIF), GUID_TO_NAME_ENTRY(MFAudioFormat_MSP1), GUID_TO_NAME_ENTRY(MFAudioFormat_MP3), GUID_TO_NAME_ENTRY(MFAudioFormat_MPEG), GUID_TO_NAME_ENTRY(MFAudioFormat_AAC), GUID_TO_NAME_ENTRY(MFAudioFormat_ADTS), // Interfaces which may be implemented by WMFByteStream. INTERFACE_TO_NAME_ENTRY(IUnknown), INTERFACE_TO_NAME_ENTRY(IMFByteStream), INTERFACE_TO_NAME_ENTRY(IMFMediaSource), INTERFACE_TO_NAME_ENTRY(IMFAttributes), INTERFACE_TO_NAME_ENTRY(IMFByteStreamBuffering), }; nsCString GetGUIDName(const GUID& guid) { unsigned numTypes = NS_ARRAY_LENGTH(GuidToNameTable); for (unsigned i = 0; i < numTypes; i++) { if (guid == GuidToNameTable[i].guid) { return nsDependentCString(GuidToNameTable[i].name); } } WCHAR* name = nullptr; HRESULT hr = StringFromCLSID(guid , &name); if (FAILED(hr)) { return nsDependentCString("GuidUnknown"); } nsCString name_u8(NS_ConvertUTF16toUTF8(nsDependentString((PRUnichar*)(name)))); CoTaskMemFree(name); return name_u8; } bool SourceReaderHasStream(IMFSourceReader* aReader, const DWORD aIndex) { RefPtr nativeType; HRESULT hr = aReader->GetNativeMediaType(aIndex, 0, byRef(nativeType)); return FAILED(hr) ? false : true; } HRESULT DoGetInterface(IUnknown* aUnknown, void** aInterface) { if (!aInterface) return E_POINTER; *aInterface = aUnknown; aUnknown->AddRef(); return S_OK; } namespace wmf { // Some SDK versions don't define the AAC decoder CLSID. #ifndef CLSID_CMSAACDecMFT // {32D186A7-218F-4C75-8876-DD77273A8999} DEFINE_GUID(CLSID_CMSAACDecMFT, 0x32D186A7, 0x218F, 0x4C75, 0x88, 0x76, 0xDD, 0x77, 0x27, 0x3A, 0x89, 0x99); #endif static bool IsSupportedDecoder(const GUID& aDecoderGUID) { return aDecoderGUID == CLSID_CMSH264DecoderMFT || aDecoderGUID == CLSID_CMSAACDecMFT || aDecoderGUID == CLSID_CMP3DecMediaObject; } static HRESULT DisableBlockedDecoders(IMFPluginControl* aPluginControl, const GUID& aCategory) { HRESULT hr = S_OK; UINT32 numMFTs = 0; IMFActivate **ppActivate = NULL; hr = wmf::MFTEnumEx(aCategory, MFT_ENUM_FLAG_ALL, nullptr, // Input type, nullptr -> match all. nullptr, // Output type, nullptr -> match all. &ppActivate, &numMFTs); if (SUCCEEDED(hr) && numMFTs == 0) { hr = MF_E_TOPO_CODEC_NOT_FOUND; } for (UINT32 i = 0; i < numMFTs; i++) { // Note: We must release all IMFActivate objects in the list, hence // we're putting individual IMFActivate objects in into a smart ptr. RefPtr activate = ppActivate[i]; GUID guid = GUID_NULL; hr = activate->GetGUID(MFT_TRANSFORM_CLSID_Attribute, &guid); if (FAILED(hr)) { NS_WARNING("FAILED to get IMFActivate clsid"); continue; } if (!IsSupportedDecoder(guid)) { hr = aPluginControl->SetDisabled(MF_Plugin_Type_MFT, guid, TRUE); NS_ASSERTION(SUCCEEDED(hr), "Failed to disable plugin!"); } } CoTaskMemFree(ppActivate); return hr; } static HRESULT DisableBlockedDecoders() { RefPtr pluginControl; HRESULT hr = wmf::MFGetPluginControl(byRef(pluginControl)); if (SUCCEEDED(hr) && pluginControl) { hr = DisableBlockedDecoders(pluginControl, MFT_CATEGORY_VIDEO_DECODER); NS_ENSURE_TRUE(SUCCEEDED(hr), hr); hr = DisableBlockedDecoders(pluginControl, MFT_CATEGORY_AUDIO_DECODER); NS_ENSURE_TRUE(SUCCEEDED(hr), hr); } return S_OK; } static bool sDLLsLoaded = false; static bool sFailedToLoadDlls = false; struct WMFModule { const wchar_t* name; HMODULE handle; }; static WMFModule sDLLs[] = { { L"mfplat.dll", NULL }, { L"mfreadwrite.dll", NULL }, { L"propsys.dll", NULL }, { L"mf.dll", NULL } }; HRESULT LoadDLLs() { NS_ASSERTION(NS_IsMainThread(), "Should be on main thread."); if (sDLLsLoaded) { return S_OK; } if (sFailedToLoadDlls) { return E_FAIL; } // Try to load all the required DLLs. uint32_t dllLength = NS_ARRAY_LENGTH(sDLLs); for (uint32_t i = 0; i < dllLength; i++) { sDLLs[i].handle = LoadLibrarySystem32(sDLLs[i].name); if (!sDLLs[i].handle) { sFailedToLoadDlls = true; NS_WARNING("Failed to load WMF DLLs"); UnloadDLLs(); return E_FAIL; } } // Enumerate all the decoders on the system, and disable the ones except // those which we expect to use, the MP3, AAC and H.264 decoders. if (FAILED(DisableBlockedDecoders())) { sFailedToLoadDlls = true; NS_WARNING("Failed to disable non whitelisted WMF decoders"); UnloadDLLs(); return E_FAIL; } sDLLsLoaded = true; return S_OK; } HRESULT UnloadDLLs() { NS_ASSERTION(NS_IsMainThread(), "Should be on main thread."); uint32_t length = NS_ARRAY_LENGTH(sDLLs); for (uint32_t i = 0; i < length; i++) { if (sDLLs[i].handle) { FreeLibrary(sDLLs[i].handle); sDLLs[i].handle = NULL; } sDLLsLoaded = false; } return S_OK; } #define ENSURE_FUNCTION_PTR(FunctionName, DLL) \ static FunctionName##Ptr_t FunctionName##Ptr = nullptr; \ if (!FunctionName##Ptr) { \ FunctionName##Ptr = (FunctionName##Ptr_t)GetProcAddress(GetModuleHandle( #DLL ), #FunctionName ); \ if (!FunctionName##Ptr) { \ NS_WARNING("Failed to get GetProcAddress of " #FunctionName " from " #DLL ); \ return E_FAIL; \ } \ } #define DECL_FUNCTION_PTR(FunctionName, ...) \ typedef HRESULT (STDMETHODCALLTYPE * FunctionName##Ptr_t)(__VA_ARGS__) HRESULT MFStartup() { const int MF_VISTA_VERSION = (0x0001 << 16 | MF_API_VERSION); const int MF_WIN7_VERSION = (0x0002 << 16 | MF_API_VERSION); DECL_FUNCTION_PTR(MFStartup, ULONG, DWORD); ENSURE_FUNCTION_PTR(MFStartup, Mfplat.dll) if (WinUtils::GetWindowsVersion() == WinUtils::VISTA_VERSION) return MFStartupPtr(MF_VISTA_VERSION, MFSTARTUP_FULL); else return MFStartupPtr(MF_WIN7_VERSION, MFSTARTUP_FULL); } HRESULT MFShutdown() { DECL_FUNCTION_PTR(MFShutdown); ENSURE_FUNCTION_PTR(MFShutdown, Mfplat.dll) return (MFShutdownPtr)(); } HRESULT MFCreateAsyncResult(IUnknown *aUnkObject, IMFAsyncCallback *aCallback, IUnknown *aUnkState, IMFAsyncResult **aOutAsyncResult) { DECL_FUNCTION_PTR(MFCreateAsyncResult, IUnknown*, IMFAsyncCallback*, IUnknown*, IMFAsyncResult**); ENSURE_FUNCTION_PTR(MFCreateAsyncResult, Mfplat.dll) return (MFCreateAsyncResultPtr)(aUnkObject, aCallback, aUnkState, aOutAsyncResult); } HRESULT MFInvokeCallback(IMFAsyncResult *aAsyncResult) { DECL_FUNCTION_PTR(MFInvokeCallback, IMFAsyncResult*); ENSURE_FUNCTION_PTR(MFInvokeCallback, Mfplat.dll); return (MFInvokeCallbackPtr)(aAsyncResult); } HRESULT MFCreateMediaType(IMFMediaType **aOutMFType) { DECL_FUNCTION_PTR(MFCreateMediaType, IMFMediaType**); ENSURE_FUNCTION_PTR(MFCreateMediaType, Mfplat.dll) return (MFCreateMediaTypePtr)(aOutMFType); } HRESULT MFCreateSourceReaderFromByteStream(IMFByteStream *aByteStream, IMFAttributes *aAttributes, IMFSourceReader **aOutSourceReader) { DECL_FUNCTION_PTR(MFCreateSourceReaderFromByteStream, IMFByteStream*, IMFAttributes*, IMFSourceReader**); ENSURE_FUNCTION_PTR(MFCreateSourceReaderFromByteStream, Mfreadwrite.dll) return (MFCreateSourceReaderFromByteStreamPtr)(aByteStream, aAttributes, aOutSourceReader); } HRESULT PropVariantToUInt32(REFPROPVARIANT aPropvar, ULONG *aOutUL) { DECL_FUNCTION_PTR(PropVariantToUInt32, REFPROPVARIANT, ULONG *); ENSURE_FUNCTION_PTR(PropVariantToUInt32, Propsys.dll) return (PropVariantToUInt32Ptr)(aPropvar, aOutUL); } HRESULT PropVariantToInt64(REFPROPVARIANT aPropVar, LONGLONG *aOutLL) { DECL_FUNCTION_PTR(PropVariantToInt64, REFPROPVARIANT, LONGLONG *); ENSURE_FUNCTION_PTR(PropVariantToInt64, Propsys.dll) return (PropVariantToInt64Ptr)(aPropVar, aOutLL); } HRESULT MFTGetInfo(CLSID aClsidMFT, LPWSTR *aOutName, MFT_REGISTER_TYPE_INFO **aOutInputTypes, UINT32 *aOutNumInputTypes, MFT_REGISTER_TYPE_INFO **aOutOutputTypes, UINT32 *aOutNumOutputTypes, IMFAttributes **aOutAttributes) { DECL_FUNCTION_PTR(MFTGetInfo, CLSID, LPWSTR*, MFT_REGISTER_TYPE_INFO**, UINT32*, MFT_REGISTER_TYPE_INFO**, UINT32*, IMFAttributes**); ENSURE_FUNCTION_PTR(MFTGetInfo, Mfplat.dll) return (MFTGetInfoPtr)(aClsidMFT, aOutName, aOutInputTypes, aOutNumInputTypes, aOutOutputTypes, aOutNumOutputTypes, aOutAttributes); } HRESULT MFGetStrideForBitmapInfoHeader(DWORD aFormat, DWORD aWidth, LONG *aOutStride) { DECL_FUNCTION_PTR(MFGetStrideForBitmapInfoHeader, DWORD, DWORD, LONG*); ENSURE_FUNCTION_PTR(MFGetStrideForBitmapInfoHeader, Mfplat.dll) return (MFGetStrideForBitmapInfoHeaderPtr)(aFormat, aWidth, aOutStride); } HRESULT MFCreateSourceReaderFromURL(LPCWSTR aURL, IMFAttributes *aAttributes, IMFSourceReader **aSourceReader) { DECL_FUNCTION_PTR(MFCreateSourceReaderFromURL, LPCWSTR, IMFAttributes*, IMFSourceReader**); ENSURE_FUNCTION_PTR(MFCreateSourceReaderFromURL, Mfreadwrite.dll) return (MFCreateSourceReaderFromURLPtr)(aURL, aAttributes, aSourceReader); } HRESULT MFCreateAttributes(IMFAttributes **ppMFAttributes, UINT32 cInitialSize) { DECL_FUNCTION_PTR(MFCreateAttributes, IMFAttributes**, UINT32); ENSURE_FUNCTION_PTR(MFCreateAttributes, mfplat.dll) return (MFCreateAttributesPtr)(ppMFAttributes, cInitialSize); } HRESULT MFGetPluginControl(IMFPluginControl **aOutPluginControl) { DECL_FUNCTION_PTR(MFGetPluginControl, IMFPluginControl **); ENSURE_FUNCTION_PTR(MFGetPluginControl, mfplat.dll) return (MFGetPluginControlPtr)(aOutPluginControl); } HRESULT MFTEnumEx(GUID guidCategory, UINT32 Flags, const MFT_REGISTER_TYPE_INFO *pInputType, const MFT_REGISTER_TYPE_INFO *pOutputType, IMFActivate ***pppMFTActivate, UINT32 *pcMFTActivate) { DECL_FUNCTION_PTR(MFTEnumEx, GUID, UINT32, const MFT_REGISTER_TYPE_INFO *, const MFT_REGISTER_TYPE_INFO *, IMFActivate ***, UINT32 *); ENSURE_FUNCTION_PTR(MFTEnumEx, mfplat.dll) return (MFTEnumExPtr)(guidCategory, Flags, pInputType, pOutputType, pppMFTActivate, pcMFTActivate); } } // end namespace wmf } // end namespace mozilla