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PEMFactory.h (2462B)

      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(PEMFactory_h_)
      8 #  define PEMFactory_h_
      9 
     10 #  include "MediaCodecsSupport.h"
     11 #  include "PlatformEncoderModule.h"
     12 
     13 namespace mozilla {
     14 
     15 class StaticMutex;
     16 enum class RemoteMediaIn;
     17 
     18 using PEMCreateEncoderPromise = PlatformEncoderModule::CreateEncoderPromise;
     19 
     20 class PEMFactory final {
     21 public:
     22  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PEMFactory)
     23 
     24  PEMFactory();
     25 
     26  // Factory method that creates the appropriate PlatformEncoderModule for
     27  // the platform we're running on. Caller is responsible for deleting this
     28  // instance. It's expected that there will be multiple
     29  // PlatformEncoderModules alive at the same time.
     30  already_AddRefed<MediaDataEncoder> CreateEncoder(
     31      const EncoderConfig& aConfig, const RefPtr<TaskQueue>& aTaskQueue);
     32 
     33  RefPtr<PlatformEncoderModule::CreateEncoderPromise> CreateEncoderAsync(
     34      const EncoderConfig& aConfig, const RefPtr<TaskQueue>& aTaskQueue);
     35 
     36  media::EncodeSupportSet Supports(const EncoderConfig& aConfig) const;
     37  media::EncodeSupportSet SupportsCodec(CodecType aCodec) const;
     38 
     39  static media::MediaCodecsSupported Supported(bool aForceRefresh = false);
     40  static media::EncodeSupportSet SupportsCodec(
     41      CodecType aCodec, const media::MediaCodecsSupported& aSupported,
     42      RemoteMediaIn aLocation);
     43 
     44 private:
     45  void InitGpuPEMs();
     46  void InitRddPEMs();
     47  void InitUtilityPEMs();
     48  void InitContentPEMs();
     49  void InitDefaultPEMs();
     50 
     51  RefPtr<PlatformEncoderModule::CreateEncoderPromise>
     52  CheckAndMaybeCreateEncoder(const EncoderConfig& aConfig, uint32_t aIndex,
     53                             const RefPtr<TaskQueue>& aTaskQueue);
     54 
     55  RefPtr<PlatformEncoderModule::CreateEncoderPromise> CreateEncoderWithPEM(
     56      PlatformEncoderModule* aPEM, const EncoderConfig& aConfig,
     57      const RefPtr<TaskQueue>& aTaskQueue);
     58  virtual ~PEMFactory() = default;
     59  // Returns the first PEM in our list supporting the codec.
     60  already_AddRefed<PlatformEncoderModule> FindPEM(
     61      const EncoderConfig& aConfig) const;
     62 
     63  nsTArray<RefPtr<PlatformEncoderModule>> mCurrentPEMs;
     64 
     65  static StaticMutex sSupportedMutex;
     66 };
     67 
     68 }  // namespace mozilla
     69 
     70 #endif /* PEMFactory_h_ */