blob: f4ffb3946a1e2f248de4b1959f28540d31871caf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 AudioSinkWrapper_h_
#define AudioSinkWrapper_h_
#include "mozilla/AbstractThread.h"
#include "mozilla/dom/AudioChannelBinding.h"
#include "mozilla/RefPtr.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/UniquePtr.h"
#include "MediaSink.h"
namespace mozilla {
class MediaData;
template <class T> class MediaQueue;
namespace media {
class AudioSink;
/**
* A wrapper around AudioSink to provide the interface of MediaSink.
*/
class AudioSinkWrapper : public MediaSink {
// An AudioSink factory.
class Creator {
public:
virtual ~Creator() {}
virtual AudioSink* Create() = 0;
};
// Wrap around a function object which creates AudioSinks.
template <typename Function>
class CreatorImpl : public Creator {
public:
explicit CreatorImpl(const Function& aFunc) : mFunction(aFunc) {}
AudioSink* Create() override { return mFunction(); }
private:
Function mFunction;
};
public:
template <typename Function>
AudioSinkWrapper(AbstractThread* aOwnerThread, const Function& aFunc)
: mOwnerThread(aOwnerThread)
, mCreator(new CreatorImpl<Function>(aFunc))
, mIsStarted(false)
// Give an insane value to facilitate debug if used before playback starts.
, mPlayDuration(INT64_MAX)
, mAudioEnded(true)
{}
const PlaybackParams& GetPlaybackParams() const override;
void SetPlaybackParams(const PlaybackParams& aParams) override;
RefPtr<GenericPromise> OnEnded(TrackType aType) override;
int64_t GetEndTime(TrackType aType) const override;
int64_t GetPosition(TimeStamp* aTimeStamp = nullptr) const override;
bool HasUnplayedFrames(TrackType aType) const override;
void SetVolume(double aVolume) override;
void SetPlaybackRate(double aPlaybackRate) override;
void SetPreservesPitch(bool aPreservesPitch) override;
void SetPlaying(bool aPlaying) override;
void Start(int64_t aStartTime, const MediaInfo& aInfo) override;
void Stop() override;
bool IsStarted() const override;
bool IsPlaying() const override;
void Shutdown() override;
private:
virtual ~AudioSinkWrapper();
void AssertOwnerThread() const {
MOZ_ASSERT(mOwnerThread->IsCurrentThreadIn());
}
int64_t GetVideoPosition(TimeStamp aNow) const;
void OnAudioEnded();
const RefPtr<AbstractThread> mOwnerThread;
UniquePtr<Creator> mCreator;
RefPtr<AudioSink> mAudioSink;
RefPtr<GenericPromise> mEndPromise;
bool mIsStarted;
PlaybackParams mParams;
TimeStamp mPlayStartTime;
int64_t mPlayDuration;
bool mAudioEnded;
MozPromiseRequestHolder<GenericPromise> mAudioSinkPromise;
};
} // namespace media
} // namespace mozilla
#endif //AudioSinkWrapper_h_
|
