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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 // MessageFilter that handles audio messages and delegates them to audio | 5 // MessageFilter that handles audio messages and delegates them to audio |
6 // renderers. Created on render thread, AudioMessageFilter is operated on | 6 // renderers. Created on render thread, AudioMessageFilter is operated on |
7 // IO thread (main thread of render process), it intercepts audio messages | 7 // IO thread (main thread of render process), it intercepts audio messages |
8 // and process them on IO thread since these messages are time critical. | 8 // and process them on IO thread since these messages are time critical. |
9 | 9 |
10 #ifndef CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ | 10 #ifndef CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ |
11 #define CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ | 11 #define CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ |
12 #pragma once | 12 #pragma once |
13 | 13 |
14 #include "base/gtest_prod_util.h" | 14 #include "base/gtest_prod_util.h" |
15 #include "base/id_map.h" | 15 #include "base/id_map.h" |
16 #include "base/shared_memory.h" | 16 #include "base/shared_memory.h" |
17 #include "base/sync_socket.h" | 17 #include "base/sync_socket.h" |
18 #include "content/common/audio_stream_state.h" | 18 #include "content/common/audio_stream_state.h" |
19 #include "ipc/ipc_channel_proxy.h" | 19 #include "ipc/ipc_channel_proxy.h" |
20 #include "media/audio/audio_buffers_state.h" | 20 #include "media/audio/audio_buffers_state.h" |
21 | 21 |
| 22 class MessageLoop; |
| 23 |
22 namespace base { | 24 namespace base { |
23 class Time; | 25 class Time; |
24 } | 26 } |
25 | 27 |
26 class AudioMessageFilter : public IPC::ChannelProxy::MessageFilter { | 28 class AudioMessageFilter : public IPC::ChannelProxy::MessageFilter { |
27 public: | 29 public: |
28 class Delegate { | 30 class Delegate { |
29 public: | 31 public: |
30 // Called when an audio packet is requested from the browser process. | 32 // Called when an audio packet is requested from the browser process. |
31 virtual void OnRequestPacket(AudioBuffersState buffers_state) = 0; | 33 virtual void OnRequestPacket(AudioBuffersState buffers_state) = 0; |
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109 IPC::Channel* channel_; | 111 IPC::Channel* channel_; |
110 | 112 |
111 int32 route_id_; | 113 int32 route_id_; |
112 | 114 |
113 MessageLoop* message_loop_; | 115 MessageLoop* message_loop_; |
114 | 116 |
115 DISALLOW_COPY_AND_ASSIGN(AudioMessageFilter); | 117 DISALLOW_COPY_AND_ASSIGN(AudioMessageFilter); |
116 }; | 118 }; |
117 | 119 |
118 #endif // CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ | 120 #endif // CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_ |
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