HLSDecoder.h - mozsearch

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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/. */

#ifndef HLSDecoder_h_

#define HLSDecoder_h_

#include "MediaDecoder.h"

#include "mozilla/java/GeckoHLSResourceWrapperWrappers.h"

namespace mozilla {

class HLSResourceCallbacksSupport;

class HLSDecoder final : public MediaDecoder {

 public:

  static RefPtr<HLSDecoder> Create(MediaDecoderInit& aInit);

  // Returns true if the HLS backend is pref'ed on.

  static bool IsEnabled();

  // Returns true if aContainerType is an HLS type that we think we can render

  // with the a platform decoder backend.

  // If provided, codecs are checked for support.

  static bool IsSupportedType(const MediaContainerType& aContainerType);

  nsresult Load(nsIChannel* aChannel);

  // MediaDecoder interface.

  void Play() override;

  void Pause() override;

  void AddSizeOfResources(ResourceSizes* aSizes) override;

  already_AddRefed<nsIPrincipal> GetCurrentPrincipal() override;

  bool HadCrossOriginRedirects() override;

  bool IsTransportSeekable() override { return true; }

  void Suspend() override;

  void Resume() override;

  void Shutdown() override;

  // Called as data arrives on the underlying HLS player. Main thread only.

  void NotifyDataArrived();

  // Called when Exoplayer start to load media. Main thread only.

  void NotifyLoad(nsCString aMediaUrl);

  bool IsHLSDecoder() const override { return true; }

 private:

  friend class HLSResourceCallbacksSupport;

  explicit HLSDecoder(MediaDecoderInit& aInit);

  ~HLSDecoder();

  MediaDecoderStateMachineBase* CreateStateMachine(

      bool aDisableExternalEngine) override;

  bool CanPlayThroughImpl() final {

    // TODO: We don't know how to estimate 'canplaythrough' for this decoder.

    // For now we just return true for 'autoplay' can work.

    return true;

  void UpdateCurrentPrincipal(nsIURI* aMediaUri);

  already_AddRefed<nsIPrincipal> GetContentPrincipal(nsIURI* aMediaUri);

  void RecordMediaUsage(nsIURI* aMediaUri);

  static size_t sAllocatedInstances;  // Access only in the main thread.

  nsCOMPtr<nsIChannel> mChannel;

  nsCOMPtr<nsIURI> mURI;

  java::GeckoHLSResourceWrapper::GlobalRef mHLSResourceWrapper;

  java::GeckoHLSResourceWrapper::Callbacks::GlobalRef mJavaCallbacks;

  RefPtr<HLSResourceCallbacksSupport> mCallbackSupport;

  nsCOMPtr<nsIPrincipal> mContentPrincipal;

  // There can be multiple media files loaded for one HLS content. Use this flag

  // to ensure we only record once per content.

  bool mUsageRecorded;

};

}  // namespace mozilla

#endif /* HLSDecoder_h_ */