gecko-dev/dom/media/platforms/PDMFactory.h

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/* -*- 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/. */
#if !defined(PDMFactory_h_)
#define PDMFactory_h_
#include "PlatformDecoderModule.h"
#include "mozilla/StaticMutex.h"
class CDMProxy;
namespace mozilla {
class DecoderDoctorDiagnostics;
class PDMFactoryImpl;
template<class T> class StaticAutoPtr;
class PDMFactory final
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PDMFactory)
PDMFactory();
// Factory method that creates the appropriate PlatformDecoderModule for
// the platform we're running on. Caller is responsible for deleting this
// instance. It's expected that there will be multiple
// PlatformDecoderModules alive at the same time.
// This is called on the decode task queue.
already_AddRefed<MediaDataDecoder>
CreateDecoder(const CreateDecoderParams& aParams);
bool SupportsMimeType(const nsACString& aMimeType,
DecoderDoctorDiagnostics* aDiagnostics) const;
bool Supports(const TrackInfo& aTrackInfo,
DecoderDoctorDiagnostics* aDiagnostics) const;
// Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
// decrypt-and-decode EME encrypted content. If the CDM only decrypts and
// does not decode, we create a PDM and use that to create MediaDataDecoders
// that we use on on aTaskQueue to decode the decrypted stream.
// This is called on the decode task queue.
void SetCDMProxy(CDMProxy* aProxy);
static constexpr int kYUV400 = 0;
static constexpr int kYUV420 = 1;
static constexpr int kYUV422 = 2;
static constexpr int kYUV444 = 3;
private:
virtual ~PDMFactory();
void CreatePDMs();
void CreateNullPDM();
// Startup the provided PDM and add it to our list if successful.
bool StartupPDM(PlatformDecoderModule* aPDM, bool aInsertAtBeginning = false);
// Returns the first PDM in our list supporting the mimetype.
already_AddRefed<PlatformDecoderModule>
GetDecoder(const TrackInfo& aTrackInfo,
DecoderDoctorDiagnostics* aDiagnostics) const;
already_AddRefed<MediaDataDecoder>
CreateDecoderWithPDM(PlatformDecoderModule* aPDM,
const CreateDecoderParams& aParams);
nsTArray<RefPtr<PlatformDecoderModule>> mCurrentPDMs;
RefPtr<PlatformDecoderModule> mEMEPDM;
RefPtr<PlatformDecoderModule> mNullPDM;
bool mWMFFailedToLoad = false;
bool mFFmpegFailedToLoad = false;
bool mGMPPDMFailedToStartup = false;
void EnsureInit() const;
template<class T> friend class StaticAutoPtr;
static StaticAutoPtr<PDMFactoryImpl> sInstance;
static StaticMutex sMonitor;
};
} // namespace mozilla
#endif /* PDMFactory_h_ */