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Side by Side Diff: content/browser/renderer_host/media/audio_renderer_host.h

Issue 2443573003: Factor out AudioOutputDelegate from AudioRendererHost. (Closed)
Patch Set: Final comments addressed. Created 4 years ago
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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 // AudioRendererHost serves audio related requests from AudioRenderer which 5 // AudioRendererHost serves audio related requests from AudioRenderer which
6 // lives inside the render process and provide access to audio hardware. 6 // lives inside the render process and provide access to audio hardware.
7 // 7 //
8 // This class is owned by RenderProcessHostImpl, and instantiated on UI 8 // This class is owned by RenderProcessHostImpl, and instantiated on UI
9 // thread, but all other operations and method calls happen on IO thread, so we 9 // thread, but all other operations and method calls happen on IO thread, so we
10 // need to be extra careful about the lifetime of this object. AudioManager is a 10 // need to be extra careful about the lifetime of this object. AudioManager is a
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33 // v v 33 // v v
34 // If there is an error at any point, a NotifyStreamError will 34 // If there is an error at any point, a NotifyStreamError will
35 // be sent. Otherwise, the renderer can assume that the actual state 35 // be sent. Otherwise, the renderer can assume that the actual state
36 // of the output stream is consistent with the control signals it sends. 36 // of the output stream is consistent with the control signals it sends.
37 37
38 // A SyncSocket pair is used to signal buffer readiness between processes. 38 // A SyncSocket pair is used to signal buffer readiness between processes.
39 39
40 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_ 40 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_
41 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_ 41 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_
42 42
43 #include <stddef.h>
44
45 #include <map> 43 #include <map>
46 #include <memory> 44 #include <memory>
47 #include <string> 45 #include <string>
48 #include <utility> 46 #include <utility>
47 #include <vector>
49 48
50 #include "base/atomic_ref_count.h"
51 #include "base/gtest_prod_util.h"
52 #include "base/logging.h"
53 #include "base/macros.h"
54 #include "base/memory/ref_counted.h"
55 #include "base/process/process.h"
56 #include "base/sequenced_task_runner_helpers.h"
57 #include "content/browser/renderer_host/media/audio_output_authorization_handler .h" 49 #include "content/browser/renderer_host/media/audio_output_authorization_handler .h"
58 #include "content/browser/renderer_host/media/media_devices_manager.h" 50 #include "content/browser/renderer_host/media/audio_output_delegate.h"
59 #include "content/common/content_export.h" 51 #include "content/common/content_export.h"
60 #include "content/public/browser/browser_message_filter.h" 52 #include "content/public/browser/browser_message_filter.h"
61 #include "content/public/browser/browser_thread.h"
62 #include "content/public/browser/render_process_host.h" 53 #include "content/public/browser/render_process_host.h"
63 #include "content/public/browser/resource_context.h" 54
64 #include "media/audio/audio_io.h" 55 namespace base {
65 #include "media/audio/audio_logging.h" 56 class SharedMemory;
66 #include "media/audio/audio_output_controller.h" 57 class CancelableSyncSocket;
67 #include "media/audio/simple_sources.h" 58 }
68 #include "media/base/output_device_info.h"
69 #include "url/origin.h"
70 59
71 namespace media { 60 namespace media {
72 class AudioManager; 61 class AudioManager;
73 class AudioParameters; 62 class AudioParameters;
74 } 63 }
75 64
76 namespace content { 65 namespace content {
77 66
78 class AudioMirroringManager; 67 class AudioMirroringManager;
79 class MediaInternals;
80 class MediaStreamManager; 68 class MediaStreamManager;
81 69
82 class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter { 70 class CONTENT_EXPORT AudioRendererHost
71 : public BrowserMessageFilter,
72 public AudioOutputDelegate::EventHandler {
83 public: 73 public:
84 // Called from UI thread from the owner of this object. 74 // Called from UI thread from the owner of this object.
85 AudioRendererHost(int render_process_id, 75 AudioRendererHost(int render_process_id,
86 media::AudioManager* audio_manager, 76 media::AudioManager* audio_manager,
87 AudioMirroringManager* mirroring_manager, 77 AudioMirroringManager* mirroring_manager,
88 MediaInternals* media_internals,
89 MediaStreamManager* media_stream_manager, 78 MediaStreamManager* media_stream_manager,
90 const std::string& salt); 79 const std::string& salt);
91 80
92 // Calls |callback| with the list of AudioOutputControllers for this object. 81 // Calls |callback| with the list of AudioOutputControllers for this object.
93 void GetOutputControllers( 82 void GetOutputControllers(
94 const RenderProcessHost::GetAudioOutputControllersCallback& 83 const RenderProcessHost::GetAudioOutputControllersCallback&
95 callback) const; 84 callback) const;
96 85
97 // BrowserMessageFilter implementation. 86 // BrowserMessageFilter implementation.
98 void OnChannelClosing() override; 87 void OnChannelClosing() override;
99 void OnDestruct() const override; 88 void OnDestruct() const override;
100 bool OnMessageReceived(const IPC::Message& message) override; 89 bool OnMessageReceived(const IPC::Message& message) override;
101 90
91 // AudioOutputDelegate::EventHandler implementation
92 void OnStreamCreated(int stream_id,
93 base::SharedMemory* shared_memory,
94 base::CancelableSyncSocket* foreign_socket) override;
95 void OnStreamError(int stream_id) override;
96 void OnStreamStateChanged(bool is_playing) override;
97
102 // Returns true if any streams managed by this host are actively playing. Can 98 // Returns true if any streams managed by this host are actively playing. Can
103 // be called from any thread. 99 // be called from any thread.
104 bool HasActiveAudio(); 100 bool HasActiveAudio();
105 101
106 void OverrideDevicePermissionsForTesting(bool has_access); 102 void OverrideDevicePermissionsForTesting(bool has_access);
107 103
108 private: 104 private:
109 friend class AudioRendererHostTest; 105 friend class AudioRendererHostTest;
110 friend class BrowserThread; 106 friend class BrowserThread;
111 friend class base::DeleteHelper<AudioRendererHost>; 107 friend class base::DeleteHelper<AudioRendererHost>;
112 friend class MockAudioRendererHost; 108 friend class MockAudioRendererHost;
113 friend class TestAudioRendererHost; 109 friend class TestAudioRendererHost;
114 FRIEND_TEST_ALL_PREFIXES(AudioRendererHostTest, CreateMockStream); 110 FRIEND_TEST_ALL_PREFIXES(AudioRendererHostTest, CreateMockStream);
115 FRIEND_TEST_ALL_PREFIXES(AudioRendererHostTest, MockStreamDataConversation); 111 FRIEND_TEST_ALL_PREFIXES(AudioRendererHostTest, MockStreamDataConversation);
116 112
117 class AudioEntry;
118 typedef std::map<int, AudioEntry*> AudioEntryMap;
119
120 // Internal callback type for access requests to output devices. 113 // Internal callback type for access requests to output devices.
121 // |have_access| is true only if there is permission to access the device. 114 // |have_access| is true only if there is permission to access the device.
122 typedef base::Callback<void(bool have_access)> OutputDeviceAccessCB; 115 typedef base::Callback<void(bool have_access)> OutputDeviceAccessCB;
123 116
117 using AudioOutputDelegateVector = std::vector<AudioOutputDelegate::UniquePtr>;
118
124 // The type of a function that is run on the UI thread to check whether the 119 // The type of a function that is run on the UI thread to check whether the
125 // routing IDs reference a valid RenderFrameHost. The function then runs 120 // routing IDs reference a valid RenderFrameHost. The function then runs
126 // |callback| on the IO thread with true/false if valid/invalid. 121 // |callback| on the IO thread with true/false if valid/invalid.
127 using ValidateRenderFrameIdFunction = 122 using ValidateRenderFrameIdFunction =
128 void (*)(int render_process_id, 123 void (*)(int render_process_id,
129 int render_frame_id, 124 int render_frame_id,
130 const base::Callback<void(bool)>& callback); 125 const base::Callback<void(bool)>& callback);
131 126
132 ~AudioRendererHost() override; 127 ~AudioRendererHost() override;
133 128
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171 void OnPauseStream(int stream_id); 166 void OnPauseStream(int stream_id);
172 167
173 // Close the audio stream referenced by |stream_id|. 168 // Close the audio stream referenced by |stream_id|.
174 void OnCloseStream(int stream_id); 169 void OnCloseStream(int stream_id);
175 170
176 // Set the volume of the audio stream referenced by |stream_id|. 171 // Set the volume of the audio stream referenced by |stream_id|.
177 void OnSetVolume(int stream_id, double volume); 172 void OnSetVolume(int stream_id, double volume);
178 173
179 // Helper methods. 174 // Helper methods.
180 175
181 // Complete the process of creating an audio stream. This will set up the
182 // shared memory or shared socket in low latency mode and send the
183 // NotifyStreamCreated message to the peer.
184 void DoCompleteCreation(int stream_id);
185
186 // Called after the |render_frame_id| provided to OnCreateStream() was 176 // Called after the |render_frame_id| provided to OnCreateStream() was
187 // validated. When |is_valid| is false, this calls ReportErrorAndClose(). 177 // validated. When |is_valid| is false, this calls OnStreamError().
188 void DidValidateRenderFrame(int stream_id, bool is_valid); 178 void DidValidateRenderFrame(int stream_id, bool is_valid);
189 179
190 // Updates status of stream for AudioStreamMonitor and updates 180 // Updates status of stream for AudioStreamMonitor and updates
191 // the number of playing streams. 181 // the number of playing streams.
192 void StreamStateChanged(int stream_id, bool is_playing); 182 void StreamStateChanged(int stream_id, bool is_playing);
193 183
194 RenderProcessHost::AudioOutputControllerList DoGetOutputControllers() const; 184 RenderProcessHost::AudioOutputControllerList DoGetOutputControllers() const;
195 185
196 // Send an error message to the renderer. 186 // Send an error message to the renderer.
197 void SendErrorMessage(int stream_id); 187 void SendErrorMessage(int stream_id);
198 188
199 // Delete an audio entry, notifying observers first. This is called by 189 // Helper methods to look up a AudioOutputDelegate identified by |stream_id|.
200 // AudioOutputController after it has closed. 190 // Returns delegates_.end() if not found.
201 void DeleteEntry(std::unique_ptr<AudioEntry> entry); 191 AudioOutputDelegateVector::iterator LookupIteratorById(int stream_id);
202 192 // Returns nullptr if not found.
203 // Send an error message to the renderer, then close the stream. 193 AudioOutputDelegate* LookupById(int stream_id);
204 void ReportErrorAndClose(int stream_id);
205
206 // A helper method to look up a AudioEntry identified by |stream_id|.
207 // Returns NULL if not found.
208 AudioEntry* LookupById(int stream_id);
209
210 // A helper method to update the number of playing streams and alert the
211 // ResourceScheduler when the renderer starts or stops playing an audiostream.
212 void UpdateNumPlayingStreams(AudioEntry* entry, bool is_playing);
213 194
214 // Helper method to check if the authorization procedure for stream 195 // Helper method to check if the authorization procedure for stream
215 // |stream_id| has started. 196 // |stream_id| has started.
216 bool IsAuthorizationStarted(int stream_id); 197 bool IsAuthorizationStarted(int stream_id);
217 198
218 // Called from AudioRendererHostTest to override the function that checks for 199 // Called from AudioRendererHostTest to override the function that checks for
219 // the existence of the RenderFrameHost at stream creation time. 200 // the existence of the RenderFrameHost at stream creation time.
220 void set_render_frame_id_validate_function_for_testing( 201 void set_render_frame_id_validate_function_for_testing(
221 ValidateRenderFrameIdFunction function) { 202 ValidateRenderFrameIdFunction function) {
222 validate_render_frame_id_function_ = function; 203 validate_render_frame_id_function_ = function;
223 } 204 }
224 205
225 // ID of the RenderProcessHost that owns this instance. 206 // ID of the RenderProcessHost that owns this instance.
226 const int render_process_id_; 207 const int render_process_id_;
227 208
228 media::AudioManager* const audio_manager_; 209 media::AudioManager* const audio_manager_;
229 AudioMirroringManager* const mirroring_manager_; 210 AudioMirroringManager* const mirroring_manager_;
230 std::unique_ptr<media::AudioLog> audio_log_;
231 211
232 // A map of stream IDs to audio sources. 212 // Used to access to AudioInputDeviceManager.
233 AudioEntryMap audio_entries_; 213 MediaStreamManager* media_stream_manager_;
214
215 // A list of the current open streams.
216 AudioOutputDelegateVector delegates_;
234 217
235 // The number of streams in the playing state. Atomic read safe from any 218 // The number of streams in the playing state. Atomic read safe from any
236 // thread, but should only be updated from the IO thread. 219 // thread, but should only be updated from the IO thread.
237 base::AtomicRefCount num_playing_streams_; 220 base::AtomicRefCount num_playing_streams_;
238 221
239 // Salt required to translate renderer device IDs to raw device unique IDs 222 // Salt required to translate renderer device IDs to raw device unique IDs
240 std::string salt_; 223 std::string salt_;
241 224
242 // Map of device authorizations for streams that are not yet created 225 // Map of device authorizations for streams that are not yet created
243 // The key is the stream ID, and the value is a pair. The pair's first element 226 // The key is the stream ID, and the value is a pair. The pair's first element
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255 size_t max_simultaneous_streams_; 238 size_t max_simultaneous_streams_;
256 239
257 AudioOutputAuthorizationHandler authorization_handler_; 240 AudioOutputAuthorizationHandler authorization_handler_;
258 241
259 DISALLOW_COPY_AND_ASSIGN(AudioRendererHost); 242 DISALLOW_COPY_AND_ASSIGN(AudioRendererHost);
260 }; 243 };
261 244
262 } // namespace content 245 } // namespace content
263 246
264 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_ 247 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_RENDERER_HOST_H_
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