зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
3.1 KiB
C++
87 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if !defined(PDMFactory_h_)
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#define PDMFactory_h_
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#include "PlatformDecoderModule.h"
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#include "mozilla/StaticMutex.h"
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class CDMProxy;
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namespace mozilla {
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class DecoderDoctorDiagnostics;
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class PDMFactoryImpl;
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template<class T> class StaticAutoPtr;
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class PDMFactory final {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PDMFactory)
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PDMFactory();
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// Factory method that creates the appropriate PlatformDecoderModule for
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// the platform we're running on. Caller is responsible for deleting this
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// instance. It's expected that there will be multiple
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// PlatformDecoderModules alive at the same time.
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// This is called on the decode task queue.
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already_AddRefed<MediaDataDecoder>
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CreateDecoder(const TrackInfo& aConfig,
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TaskQueue* aTaskQueue,
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MediaDataDecoderCallback* aCallback,
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DecoderDoctorDiagnostics* aDiagnostics,
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layers::LayersBackend aLayersBackend = layers::LayersBackend::LAYERS_NONE,
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layers::ImageContainer* aImageContainer = nullptr) const;
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bool SupportsMimeType(const nsACString& aMimeType,
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DecoderDoctorDiagnostics* aDiagnostics) const;
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#ifdef MOZ_EME
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// Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
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// decrypt-and-decode EME encrypted content. If the CDM only decrypts and
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// does not decode, we create a PDM and use that to create MediaDataDecoders
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// that we use on on aTaskQueue to decode the decrypted stream.
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// This is called on the decode task queue.
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void SetCDMProxy(CDMProxy* aProxy);
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#endif
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private:
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virtual ~PDMFactory();
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void CreatePDMs();
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// Startup the provided PDM and add it to our list if successful.
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bool StartupPDM(PlatformDecoderModule* aPDM);
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// Returns the first PDM in our list supporting the mimetype.
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already_AddRefed<PlatformDecoderModule>
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GetDecoder(const nsACString& aMimeType,
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DecoderDoctorDiagnostics* aDiagnostics) const;
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already_AddRefed<MediaDataDecoder>
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CreateDecoderWithPDM(PlatformDecoderModule* aPDM,
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const TrackInfo& aConfig,
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TaskQueue* aTaskQueue,
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MediaDataDecoderCallback* aCallback,
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DecoderDoctorDiagnostics* aDiagnostics,
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layers::LayersBackend aLayersBackend,
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layers::ImageContainer* aImageContainer) const;
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nsTArray<RefPtr<PlatformDecoderModule>> mCurrentPDMs;
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RefPtr<PlatformDecoderModule> mEMEPDM;
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bool mWMFFailedToLoad = false;
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bool mFFmpegFailedToLoad = false;
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bool mGMPPDMFailedToStartup = false;
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void EnsureInit() const;
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template<class T> friend class StaticAutoPtr;
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static StaticAutoPtr<PDMFactoryImpl> sInstance;
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static StaticMutex sMonitor;
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};
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} // namespace mozilla
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#endif /* PDMFactory_h_ */
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