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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 #ifndef CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ |
6 #define CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ | 6 #define CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <memory> | |
9 #include <string> | 10 #include <string> |
10 #include <utility> | |
11 | 11 |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "base/synchronization/lock.h" | 13 #include "base/synchronization/lock.h" |
14 #include "content/common/content_export.h" | 14 #include "content/common/content_export.h" |
15 #include "media/audio/audio_device_description.h" | 15 #include "media/audio/audio_device_description.h" |
16 #include "media/base/audio_parameters.h" | 16 #include "media/base/audio_parameters.h" |
17 #include "media/base/output_device_info.h" | 17 #include "media/base/output_device_info.h" |
18 #include "url/origin.h" | 18 #include "url/origin.h" |
19 | 19 |
20 namespace media { | 20 namespace media { |
21 class AudioHardwareConfig; | |
22 class AudioRendererMixer; | 21 class AudioRendererMixer; |
23 class AudioRendererMixerInput; | 22 class AudioRendererMixerInput; |
24 class AudioRendererSink; | |
25 } | 23 } |
26 | 24 |
27 namespace content { | 25 namespace content { |
26 class AudioRendererSinkCache; | |
28 | 27 |
29 // Manages sharing of an AudioRendererMixer among AudioRendererMixerInputs based | 28 // Manages sharing of an AudioRendererMixer among AudioRendererMixerInputs based |
30 // on their AudioParameters configuration. Inputs with the same AudioParameters | 29 // on their AudioParameters configuration. Inputs with the same AudioParameters |
31 // configuration will share a mixer while a new AudioRendererMixer will be | 30 // configuration will share a mixer while a new AudioRendererMixer will be |
32 // lazily created if one with the exact AudioParameters does not exist. | 31 // lazily created if one with the exact AudioParameters does not exist. |
33 // | 32 // |
34 // There should only be one instance of AudioRendererMixerManager per render | 33 // There should only be one instance of AudioRendererMixerManager per render |
35 // thread. | 34 // thread. |
36 // | 35 // |
37 // TODO(dalecurtis): Right now we require AudioParameters to be an exact match | 36 // TODO(dalecurtis): Right now we require AudioParameters to be an exact match |
38 // when we should be able to ignore bits per channel since we're only dealing | 37 // when we should be able to ignore bits per channel since we're only dealing |
39 // with floats. However, bits per channel is currently used to interleave the | 38 // with floats. However, bits per channel is currently used to interleave the |
40 // audio data by AudioOutputDevice::AudioThreadCallback::Process for consumption | 39 // audio data by AudioOutputDevice::AudioThreadCallback::Process for consumption |
41 // via the shared memory. See http://crbug.com/114700. | 40 // via the shared memory. See http://crbug.com/114700. |
42 class CONTENT_EXPORT AudioRendererMixerManager { | 41 class CONTENT_EXPORT AudioRendererMixerManager { |
43 public: | 42 public: |
44 AudioRendererMixerManager(); | 43 static std::unique_ptr<AudioRendererMixerManager> Create(); |
44 | |
45 ~AudioRendererMixerManager(); | 45 ~AudioRendererMixerManager(); |
46 | 46 |
47 // Creates an AudioRendererMixerInput with the proper callbacks necessary to | 47 // Creates an AudioRendererMixerInput with the proper callbacks necessary to |
48 // retrieve an AudioRendererMixer instance from AudioRendererMixerManager. | 48 // retrieve an AudioRendererMixer instance from AudioRendererMixerManager. |
49 // |source_render_frame_id| refers to the RenderFrame containing the entity | 49 // |source_render_frame_id| refers to the RenderFrame containing the entity |
50 // rendering the audio. Caller must ensure AudioRendererMixerManager outlives | 50 // rendering the audio. Caller must ensure AudioRendererMixerManager outlives |
51 // the returned input. |device_id|, |session_id| and |security_origin| | 51 // the returned input. |device_id|, |session_id| and |security_origin| |
52 // identify the output device to use. If |device_id| is empty and |session_id| | 52 // identify the output device to use. If |device_id| is empty and |session_id| |
53 // is nonzero, output device associated with the opened input device | 53 // is nonzero, output device associated with the opened input device |
54 // designated by |session_id| is used. Otherwise, |session_id| is ignored. | 54 // designated by |session_id| is used. Otherwise, |session_id| is ignored. |
(...skipping 12 matching lines...) Expand all Loading... | |
67 media::OutputDeviceStatus* device_status); | 67 media::OutputDeviceStatus* device_status); |
68 | 68 |
69 // Remove a mixer instance given a mixer if the only other reference is held | 69 // Remove a mixer instance given a mixer if the only other reference is held |
70 // by AudioRendererMixerManager. Every AudioRendererMixer owner must call | 70 // by AudioRendererMixerManager. Every AudioRendererMixer owner must call |
71 // this method when it's done with a mixer. | 71 // this method when it's done with a mixer. |
72 void RemoveMixer(int source_render_frame_id, | 72 void RemoveMixer(int source_render_frame_id, |
73 const media::AudioParameters& params, | 73 const media::AudioParameters& params, |
74 const std::string& device_id, | 74 const std::string& device_id, |
75 const url::Origin& security_origin); | 75 const url::Origin& security_origin); |
76 | 76 |
77 // Returns output device information. This call goes to the sink cache. | |
78 media::OutputDeviceInfo GetOutputDeviceInfo( | |
79 int source_render_frame_id, | |
80 int session_id, | |
81 const std::string& device_id, | |
82 const url::Origin& security_origin); | |
83 | |
84 protected: | |
85 AudioRendererMixerManager(std::unique_ptr<AudioRendererSinkCache> sink_cache); | |
86 | |
77 private: | 87 private: |
78 friend class AudioRendererMixerManagerTest; | 88 friend class AudioRendererMixerManagerTest; |
79 | 89 |
80 // Define a key so that only those AudioRendererMixerInputs from the same | 90 // Define a key so that only those AudioRendererMixerInputs from the same |
81 // RenderView, AudioParameters and output device can be mixed together. | 91 // RenderView, AudioParameters and output device can be mixed together. |
82 struct MixerKey { | 92 struct MixerKey { |
83 MixerKey(int source_render_frame_id, | 93 MixerKey(int source_render_frame_id, |
84 const media::AudioParameters& params, | 94 const media::AudioParameters& params, |
85 const std::string& device_id, | 95 const std::string& device_id, |
86 const url::Origin& security_origin); | 96 const url::Origin& security_origin); |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
128 media::AudioRendererMixer* mixer; | 138 media::AudioRendererMixer* mixer; |
129 int ref_count; | 139 int ref_count; |
130 }; | 140 }; |
131 typedef std::map<MixerKey, AudioRendererMixerReference, MixerKeyCompare> | 141 typedef std::map<MixerKey, AudioRendererMixerReference, MixerKeyCompare> |
132 AudioRendererMixerMap; | 142 AudioRendererMixerMap; |
133 | 143 |
134 // Active mixers. | 144 // Active mixers. |
135 AudioRendererMixerMap mixers_; | 145 AudioRendererMixerMap mixers_; |
136 base::Lock mixers_lock_; | 146 base::Lock mixers_lock_; |
137 | 147 |
148 // Mixer sink cache. Should outlive |mixers_| => must be declared after them. | |
149 std::unique_ptr<AudioRendererSinkCache> sink_cache_; | |
miu
2016/05/12 21:53:06
Please make this const, since it is not mutated an
o1ka
2016/05/17 17:17:23
Done.
| |
150 | |
138 DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerManager); | 151 DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerManager); |
139 }; | 152 }; |
140 | 153 |
141 } // namespace content | 154 } // namespace content |
142 | 155 |
143 #endif // CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ | 156 #endif // CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_MIXER_MANAGER_H_ |
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