Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #if !defined(PDMFactory_h_)
       8             : #define PDMFactory_h_
       9             : 
      10             : #include "PlatformDecoderModule.h"
      11             : #include "mozilla/StaticMutex.h"
      12             : 
      13             : class CDMProxy;
      14             : 
      15             : namespace mozilla {
      16             : 
      17             : class DecoderDoctorDiagnostics;
      18             : class PDMFactoryImpl;
      19             : template<class T> class StaticAutoPtr;
      20             : 
      21             : class PDMFactory final
      22             : {
      23             : public:
      24           0 :   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PDMFactory)
      25             : 
      26             :   PDMFactory();
      27             : 
      28             :   // Factory method that creates the appropriate PlatformDecoderModule for
      29             :   // the platform we're running on. Caller is responsible for deleting this
      30             :   // instance. It's expected that there will be multiple
      31             :   // PlatformDecoderModules alive at the same time.
      32             :   // This is called on the decode task queue.
      33             :   already_AddRefed<MediaDataDecoder>
      34             :   CreateDecoder(const CreateDecoderParams& aParams);
      35             : 
      36             :   bool SupportsMimeType(const nsACString& aMimeType,
      37             :                         DecoderDoctorDiagnostics* aDiagnostics) const;
      38             :   bool Supports(const TrackInfo& aTrackInfo,
      39             :                 DecoderDoctorDiagnostics* aDiagnostics) const;
      40             : 
      41             :   // Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
      42             :   // decrypt-and-decode EME encrypted content. If the CDM only decrypts and
      43             :   // does not decode, we create a PDM and use that to create MediaDataDecoders
      44             :   // that we use on on aTaskQueue to decode the decrypted stream.
      45             :   // This is called on the decode task queue.
      46             :   void SetCDMProxy(CDMProxy* aProxy);
      47             : 
      48             :   static constexpr int kYUV400 = 0;
      49             :   static constexpr int kYUV420 = 1;
      50             :   static constexpr int kYUV422 = 2;
      51             :   static constexpr int kYUV444 = 3;
      52             : 
      53             : private:
      54             :   virtual ~PDMFactory();
      55             :   void CreatePDMs();
      56             :   void CreateNullPDM();
      57             :   // Startup the provided PDM and add it to our list if successful.
      58             :   bool StartupPDM(PlatformDecoderModule* aPDM, bool aInsertAtBeginning = false);
      59             :   // Returns the first PDM in our list supporting the mimetype.
      60             :   already_AddRefed<PlatformDecoderModule>
      61             :   GetDecoder(const TrackInfo& aTrackInfo,
      62             :              DecoderDoctorDiagnostics* aDiagnostics) const;
      63             : 
      64             :   already_AddRefed<MediaDataDecoder>
      65             :   CreateDecoderWithPDM(PlatformDecoderModule* aPDM,
      66             :                        const CreateDecoderParams& aParams);
      67             : 
      68             :   nsTArray<RefPtr<PlatformDecoderModule>> mCurrentPDMs;
      69             :   RefPtr<PlatformDecoderModule> mEMEPDM;
      70             :   RefPtr<PlatformDecoderModule> mNullPDM;
      71             : 
      72             :   bool mWMFFailedToLoad = false;
      73             :   bool mFFmpegFailedToLoad = false;
      74             :   bool mGMPPDMFailedToStartup = false;
      75             : 
      76             :   void EnsureInit() const;
      77             :   template<class T> friend class StaticAutoPtr;
      78             :   static StaticAutoPtr<PDMFactoryImpl> sInstance;
      79             :   static StaticMutex sMonitor;
      80             : };
      81             : 
      82             : } // namespace mozilla
      83             : 
      84             : #endif /* PDMFactory_h_ */