MFMediaEngineExtension.h (1837B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 #ifndef DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINEEXTENSION_H 6 #define DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINEEXTENSION_H 7 8 #include <wrl.h> 9 10 #include "MFMediaEngineExtra.h" 11 12 namespace mozilla { 13 14 /** 15 * MFMediaEngineNotify is used to load media resources in the media engine. 16 * https://docs.microsoft.com/en-us/windows/win32/api/mfmediaengine/nn-mfmediaengine-imfmediaengineextension 17 */ 18 class MFMediaEngineExtension final 19 : public Microsoft::WRL::RuntimeClass< 20 Microsoft::WRL::RuntimeClassFlags< 21 Microsoft::WRL::RuntimeClassType::ClassicCom>, 22 IMFMediaEngineExtension> { 23 public: 24 MFMediaEngineExtension() = default; 25 26 HRESULT RuntimeClassInitialize() { return S_OK; } 27 28 void SetMediaSource(IMFMediaSource* aMediaSource); 29 30 // Method for MFMediaEngineExtension 31 IFACEMETHODIMP BeginCreateObject(BSTR aUrl, IMFByteStream* aByteStream, 32 MF_OBJECT_TYPE aType, 33 IUnknown** aCancelCookie, 34 IMFAsyncCallback* aCallback, 35 IUnknown* aState) override; 36 IFACEMETHODIMP CancelObjectCreation(IUnknown* aCancelCookie) override; 37 IFACEMETHODIMP EndCreateObject(IMFAsyncResult* aResult, 38 IUnknown** aRetObj) override; 39 IFACEMETHODIMP CanPlayType(BOOL aIsAudioOnly, BSTR aMimeType, 40 MF_MEDIA_ENGINE_CANPLAY* aResult) override; 41 42 private: 43 bool mIsObjectCreating = false; 44 Microsoft::WRL::ComPtr<IMFMediaSource> mMediaSource; 45 }; 46 47 } // namespace mozilla 48 49 #endif // DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINEEXTENSION_H