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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/renderer/media/media_stream_audio_source.h" | 5 #include "content/renderer/media/media_stream_audio_source.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/single_thread_task_runner.h" | 8 #include "base/single_thread_task_runner.h" |
9 #include "base/threading/thread_task_runner_handle.h" | 9 #include "base/threading/thread_task_runner_handle.h" |
10 #include "content/renderer/media/media_stream_audio_track.h" | 10 #include "content/renderer/media/media_stream_audio_track.h" |
11 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h" | 11 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h" |
12 #include "third_party/WebKit/public/platform/WebString.h" | 12 #include "third_party/WebKit/public/platform/WebString.h" |
13 | 13 |
14 namespace content { | 14 namespace content { |
15 | 15 |
16 MediaStreamAudioSource::MediaStreamAudioSource(bool is_local_source) | 16 MediaStreamAudioSource::MediaStreamAudioSource(bool is_local_source) |
17 : is_local_source_(is_local_source), | 17 : is_local_source_(is_local_source), |
18 is_stopped_(false), | 18 is_stopped_(false), |
19 task_runner_(base::ThreadTaskRunnerHandle::Get()), | 19 task_runner_(base::ThreadTaskRunnerHandle::Get()), |
20 weak_factory_(this) { | 20 weak_factory_(this) { |
21 DVLOG(1) << "MediaStreamAudioSource@" << this << "::MediaStreamAudioSource(" | 21 DVLOG(1) << "MediaStreamAudioSource@" << this << "::MediaStreamAudioSource(" |
22 << (is_local_source_ ? "local" : "remote") << " source)"; | 22 << (is_local_source_ ? "local" : "remote") << " source)"; |
23 } | 23 } |
24 | 24 |
25 MediaStreamAudioSource::~MediaStreamAudioSource() { | 25 MediaStreamAudioSource::~MediaStreamAudioSource() { |
26 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 26 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
27 DVLOG(1) << "MediaStreamAudioSource@" << this << " is being destroyed."; | 27 DVLOG(1) << "MediaStreamAudioSource@" << this << " is being destroyed."; |
28 } | 28 } |
29 | 29 |
30 // static | 30 // static |
31 MediaStreamAudioSource* MediaStreamAudioSource::From( | 31 MediaStreamAudioSource* MediaStreamAudioSource::From( |
32 const blink::WebMediaStreamSource& source) { | 32 const blink::WebMediaStreamSource& source) { |
33 if (source.IsNull() || | 33 if (source.IsNull() || |
34 source.GetType() != blink::WebMediaStreamSource::kTypeAudio) { | 34 source.GetType() != blink::WebMediaStreamSource::kTypeAudio) { |
35 return nullptr; | 35 return nullptr; |
36 } | 36 } |
37 return static_cast<MediaStreamAudioSource*>(source.GetExtraData()); | 37 return static_cast<MediaStreamAudioSource*>(source.GetExtraData()); |
38 } | 38 } |
39 | 39 |
40 bool MediaStreamAudioSource::ConnectToTrack( | 40 bool MediaStreamAudioSource::ConnectToTrack( |
41 const blink::WebMediaStreamTrack& blink_track) { | 41 const blink::WebMediaStreamTrack& blink_track) { |
42 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 42 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
43 DCHECK(!blink_track.IsNull()); | 43 DCHECK(!blink_track.IsNull()); |
44 | 44 |
45 // Sanity-check that there is not already a MediaStreamAudioTrack instance | 45 // Sanity-check that there is not already a MediaStreamAudioTrack instance |
46 // associated with |blink_track|. | 46 // associated with |blink_track|. |
47 if (MediaStreamAudioTrack::From(blink_track)) { | 47 if (MediaStreamAudioTrack::From(blink_track)) { |
48 LOG(DFATAL) | 48 LOG(DFATAL) |
49 << "Attempting to connect another source to a WebMediaStreamTrack."; | 49 << "Attempting to connect another source to a WebMediaStreamTrack."; |
50 return false; | 50 return false; |
51 } | 51 } |
52 | 52 |
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84 media::AudioParameters MediaStreamAudioSource::GetAudioParameters() const { | 84 media::AudioParameters MediaStreamAudioSource::GetAudioParameters() const { |
85 return deliverer_.GetAudioParameters(); | 85 return deliverer_.GetAudioParameters(); |
86 } | 86 } |
87 | 87 |
88 void* MediaStreamAudioSource::GetClassIdentifier() const { | 88 void* MediaStreamAudioSource::GetClassIdentifier() const { |
89 return nullptr; | 89 return nullptr; |
90 } | 90 } |
91 | 91 |
92 std::unique_ptr<MediaStreamAudioTrack> | 92 std::unique_ptr<MediaStreamAudioTrack> |
93 MediaStreamAudioSource::CreateMediaStreamAudioTrack(const std::string& id) { | 93 MediaStreamAudioSource::CreateMediaStreamAudioTrack(const std::string& id) { |
94 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 94 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
95 return std::unique_ptr<MediaStreamAudioTrack>( | 95 return std::unique_ptr<MediaStreamAudioTrack>( |
96 new MediaStreamAudioTrack(is_local_source())); | 96 new MediaStreamAudioTrack(is_local_source())); |
97 } | 97 } |
98 | 98 |
99 bool MediaStreamAudioSource::EnsureSourceIsStarted() { | 99 bool MediaStreamAudioSource::EnsureSourceIsStarted() { |
100 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 100 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
101 DVLOG(1) << "MediaStreamAudioSource@" << this << "::EnsureSourceIsStarted()"; | 101 DVLOG(1) << "MediaStreamAudioSource@" << this << "::EnsureSourceIsStarted()"; |
102 return true; | 102 return true; |
103 } | 103 } |
104 | 104 |
105 void MediaStreamAudioSource::EnsureSourceIsStopped() { | 105 void MediaStreamAudioSource::EnsureSourceIsStopped() { |
106 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 106 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
107 DVLOG(1) << "MediaStreamAudioSource@" << this << "::EnsureSourceIsStopped()"; | 107 DVLOG(1) << "MediaStreamAudioSource@" << this << "::EnsureSourceIsStopped()"; |
108 } | 108 } |
109 | 109 |
110 void MediaStreamAudioSource::SetFormat(const media::AudioParameters& params) { | 110 void MediaStreamAudioSource::SetFormat(const media::AudioParameters& params) { |
111 DVLOG(1) << "MediaStreamAudioSource@" << this << "::SetFormat(" | 111 DVLOG(1) << "MediaStreamAudioSource@" << this << "::SetFormat(" |
112 << params.AsHumanReadableString() << "), was previously set to {" | 112 << params.AsHumanReadableString() << "), was previously set to {" |
113 << deliverer_.GetAudioParameters().AsHumanReadableString() << "}."; | 113 << deliverer_.GetAudioParameters().AsHumanReadableString() << "}."; |
114 deliverer_.OnSetFormat(params); | 114 deliverer_.OnSetFormat(params); |
115 } | 115 } |
116 | 116 |
117 void MediaStreamAudioSource::DeliverDataToTracks( | 117 void MediaStreamAudioSource::DeliverDataToTracks( |
118 const media::AudioBus& audio_bus, | 118 const media::AudioBus& audio_bus, |
119 base::TimeTicks reference_time) { | 119 base::TimeTicks reference_time) { |
120 deliverer_.OnData(audio_bus, reference_time); | 120 deliverer_.OnData(audio_bus, reference_time); |
121 } | 121 } |
122 | 122 |
123 void MediaStreamAudioSource::DoStopSource() { | 123 void MediaStreamAudioSource::DoStopSource() { |
124 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 124 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
125 EnsureSourceIsStopped(); | 125 EnsureSourceIsStopped(); |
126 is_stopped_ = true; | 126 is_stopped_ = true; |
127 } | 127 } |
128 | 128 |
129 void MediaStreamAudioSource::StopAudioDeliveryTo(MediaStreamAudioTrack* track) { | 129 void MediaStreamAudioSource::StopAudioDeliveryTo(MediaStreamAudioTrack* track) { |
130 DCHECK(task_runner_->RunsTasksOnCurrentThread()); | 130 DCHECK(task_runner_->RunsTasksInCurrentSequence()); |
131 | 131 |
132 const bool did_remove_last_track = deliverer_.RemoveConsumer(track); | 132 const bool did_remove_last_track = deliverer_.RemoveConsumer(track); |
133 DVLOG(1) << "Removed MediaStreamAudioTrack@" << track | 133 DVLOG(1) << "Removed MediaStreamAudioTrack@" << track |
134 << " as a consumer of MediaStreamAudioSource@" << this << '.'; | 134 << " as a consumer of MediaStreamAudioSource@" << this << '.'; |
135 | 135 |
136 // The W3C spec requires a source automatically stop when the last track is | 136 // The W3C spec requires a source automatically stop when the last track is |
137 // stopped. | 137 // stopped. |
138 if (!is_stopped_ && did_remove_last_track) | 138 if (!is_stopped_ && did_remove_last_track) |
139 MediaStreamSource::StopSource(); | 139 MediaStreamSource::StopSource(); |
140 } | 140 } |
141 | 141 |
142 void MediaStreamAudioSource::StopSourceOnError(const std::string& why) { | 142 void MediaStreamAudioSource::StopSourceOnError(const std::string& why) { |
143 VLOG(1) << why; | 143 VLOG(1) << why; |
144 | 144 |
145 // Stop source when error occurs. | 145 // Stop source when error occurs. |
146 task_runner_->PostTask( | 146 task_runner_->PostTask( |
147 FROM_HERE, base::Bind(&MediaStreamSource::StopSource, GetWeakPtr())); | 147 FROM_HERE, base::Bind(&MediaStreamSource::StopSource, GetWeakPtr())); |
148 } | 148 } |
149 | 149 |
150 } // namespace content | 150 } // namespace content |
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