dom/media/mediasink/AudioSink.h
author Nathan Froyd <froydnj@mozilla.com>
Sun, 18 Oct 2015 01:24:48 -0400
changeset 268184 e8c7dfe727cd970e2c3294934e2927b14143c205
parent 266639 41dea9df27ed995f8315ab4318c187a617937664
child 279525 9ce51229f0f9556c9e11e1ea201a4248ccfce989
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

/* -*- 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(AudioSink_h__)
#define AudioSink_h__

#include "mozilla/MozPromise.h"
#include "mozilla/RefPtr.h"
#include "nsISupportsImpl.h"

namespace mozilla {

class MediaData;
template <class T> class MediaQueue;

namespace media {

/*
 * Define basic APIs for derived class instance to operate or obtain
 * information from it.
 */
class AudioSink {
public:
  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioSink)
  AudioSink(MediaQueue<MediaData>& aAudioQueue)
    : mAudioQueue(aAudioQueue)
  {}

  // Return a promise which will be resolved when AudioSink finishes playing,
  // or rejected if any error.
  virtual RefPtr<GenericPromise> Init() = 0;

  virtual int64_t GetEndTime() const = 0;
  virtual int64_t GetPosition() = 0;

  // Check whether we've pushed more frames to the audio
  // hardware than it has played.
  virtual bool HasUnplayedFrames() = 0;

  // Shut down the AudioSink's resources.
  virtual void Shutdown() = 0;

  // Change audio playback setting.
  virtual void SetVolume(double aVolume) = 0;
  virtual void SetPlaybackRate(double aPlaybackRate) = 0;
  virtual void SetPreservesPitch(bool aPreservesPitch) = 0;

  // Change audio playback status pause/resume.
  virtual void SetPlaying(bool aPlaying) = 0;

protected:
  virtual ~AudioSink() {}

  virtual MediaQueue<MediaData>& AudioQueue() const {
    return mAudioQueue;
  }

  // To queue audio data (no matter it's plain or encoded or encrypted, depends
  // on the subclass)
  MediaQueue<MediaData>& mAudioQueue;
};

} // namespace media
} // namespace mozilla

#endif