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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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/audio_renderer_mixer_manager.h" | 5 #include "content/renderer/media/audio_renderer_mixer_manager.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
9 #include "content/renderer/media/audio_device_factory.h" | 9 #include "content/renderer/media/audio_device_factory.h" |
10 #include "content/renderer/media/renderer_audio_output_device.h" | 10 #include "media/audio/audio_output_device.h" |
11 #include "media/base/audio_hardware_config.h" | 11 #include "media/base/audio_hardware_config.h" |
12 #include "media/base/audio_renderer_mixer.h" | 12 #include "media/base/audio_renderer_mixer.h" |
13 #include "media/base/audio_renderer_mixer_input.h" | 13 #include "media/base/audio_renderer_mixer_input.h" |
14 | 14 |
15 namespace content { | 15 namespace content { |
16 | 16 |
17 AudioRendererMixerManager::AudioRendererMixerManager( | 17 AudioRendererMixerManager::AudioRendererMixerManager( |
18 media::AudioHardwareConfig* hardware_config) | 18 media::AudioHardwareConfig* hardware_config) |
19 : hardware_config_(hardware_config), | 19 : hardware_config_(hardware_config), |
20 sink_for_testing_(NULL) { | 20 sink_for_testing_(NULL) { |
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70 // If we've created invalid output parameters, simply pass on the input params | 70 // If we've created invalid output parameters, simply pass on the input params |
71 // and let the browser side handle automatic fallback. | 71 // and let the browser side handle automatic fallback. |
72 if (!output_params.IsValid()) | 72 if (!output_params.IsValid()) |
73 output_params = params; | 73 output_params = params; |
74 | 74 |
75 media::AudioRendererMixer* mixer; | 75 media::AudioRendererMixer* mixer; |
76 if (sink_for_testing_) { | 76 if (sink_for_testing_) { |
77 mixer = new media::AudioRendererMixer( | 77 mixer = new media::AudioRendererMixer( |
78 params, output_params, sink_for_testing_); | 78 params, output_params, sink_for_testing_); |
79 } else { | 79 } else { |
80 scoped_refptr<RendererAudioOutputDevice> device = | 80 mixer = new media::AudioRendererMixer( |
81 AudioDeviceFactory::NewOutputDevice(); | 81 params, output_params, AudioDeviceFactory::NewOutputDevice( |
82 device->SetSourceRenderView(source_render_view_id); | 82 source_render_view_id)); |
83 mixer = new media::AudioRendererMixer(params, output_params, device); | |
84 } | 83 } |
85 | 84 |
86 AudioRendererMixerReference mixer_reference = { mixer, 1 }; | 85 AudioRendererMixerReference mixer_reference = { mixer, 1 }; |
87 mixers_[key] = mixer_reference; | 86 mixers_[key] = mixer_reference; |
88 return mixer; | 87 return mixer; |
89 } | 88 } |
90 | 89 |
91 void AudioRendererMixerManager::RemoveMixer( | 90 void AudioRendererMixerManager::RemoveMixer( |
92 int source_render_view_id, | 91 int source_render_view_id, |
93 const media::AudioParameters& params) { | 92 const media::AudioParameters& params) { |
94 const MixerKey key(source_render_view_id, params); | 93 const MixerKey key(source_render_view_id, params); |
95 base::AutoLock auto_lock(mixers_lock_); | 94 base::AutoLock auto_lock(mixers_lock_); |
96 | 95 |
97 AudioRendererMixerMap::iterator it = mixers_.find(key); | 96 AudioRendererMixerMap::iterator it = mixers_.find(key); |
98 DCHECK(it != mixers_.end()); | 97 DCHECK(it != mixers_.end()); |
99 | 98 |
100 // Only remove the mixer if AudioRendererMixerManager is the last owner. | 99 // Only remove the mixer if AudioRendererMixerManager is the last owner. |
101 it->second.ref_count--; | 100 it->second.ref_count--; |
102 if (it->second.ref_count == 0) { | 101 if (it->second.ref_count == 0) { |
103 delete it->second.mixer; | 102 delete it->second.mixer; |
104 mixers_.erase(it); | 103 mixers_.erase(it); |
105 } | 104 } |
106 } | 105 } |
107 | 106 |
108 } // namespace content | 107 } // namespace content |
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