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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_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ | 5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ |
6 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ | 6 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/memory/scoped_ptr.h" |
10 #include "media/audio/audio_output_ipc.h" | 11 #include "media/audio/audio_output_ipc.h" |
11 #include "webkit/plugins/ppapi/plugin_delegate.h" | 12 #include "webkit/plugins/ppapi/plugin_delegate.h" |
12 | 13 |
13 namespace media { | 14 namespace media { |
14 class AudioParameters; | 15 class AudioParameters; |
15 } | 16 } |
16 | 17 |
17 namespace base { | 18 namespace base { |
18 class MessageLoopProxy; | 19 class MessageLoopProxy; |
19 } | 20 } |
20 | 21 |
21 namespace content { | 22 namespace content { |
22 | 23 |
23 class PepperPlatformAudioOutputImpl | 24 class PepperPlatformAudioOutputImpl |
24 : public webkit::ppapi::PluginDelegate::PlatformAudioOutput, | 25 : public webkit::ppapi::PluginDelegate::PlatformAudioOutput, |
25 public media::AudioOutputIPCDelegate, | 26 public media::AudioOutputIPCDelegate, |
26 public base::RefCountedThreadSafe<PepperPlatformAudioOutputImpl> { | 27 public base::RefCountedThreadSafe<PepperPlatformAudioOutputImpl> { |
27 public: | 28 public: |
28 // Factory function, returns NULL on failure. StreamCreated() will be called | 29 // Factory function, returns NULL on failure. StreamCreated() will be called |
29 // when the stream is created. | 30 // when the stream is created. |
30 static PepperPlatformAudioOutputImpl* Create( | 31 static PepperPlatformAudioOutputImpl* Create( |
| 32 int render_view_id, |
31 int sample_rate, | 33 int sample_rate, |
32 int frames_per_buffer, | 34 int frames_per_buffer, |
33 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client); | 35 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client); |
34 | 36 |
35 // PlatformAudioOutput implementation (called on main thread). | 37 // PlatformAudioOutput implementation (called on main thread). |
36 virtual bool StartPlayback() OVERRIDE; | 38 virtual bool StartPlayback() OVERRIDE; |
37 virtual bool StopPlayback() OVERRIDE; | 39 virtual bool StopPlayback() OVERRIDE; |
38 virtual void ShutDown() OVERRIDE; | 40 virtual void ShutDown() OVERRIDE; |
39 | 41 |
40 // media::AudioOutputIPCDelegate implementation. | 42 // media::AudioOutputIPCDelegate implementation. |
41 virtual void OnStateChanged( | 43 virtual void OnStateChanged( |
42 media::AudioOutputIPCDelegate::State state) OVERRIDE; | 44 media::AudioOutputIPCDelegate::State state) OVERRIDE; |
43 virtual void OnStreamCreated(base::SharedMemoryHandle handle, | 45 virtual void OnStreamCreated(base::SharedMemoryHandle handle, |
44 base::SyncSocket::Handle socket_handle, | 46 base::SyncSocket::Handle socket_handle, |
45 int length) OVERRIDE; | 47 int length) OVERRIDE; |
46 virtual void OnIPCClosed() OVERRIDE; | 48 virtual void OnIPCClosed() OVERRIDE; |
47 | 49 |
48 protected: | 50 protected: |
49 virtual ~PepperPlatformAudioOutputImpl(); | 51 virtual ~PepperPlatformAudioOutputImpl(); |
50 | 52 |
51 private: | 53 private: |
52 friend class base::RefCountedThreadSafe<PepperPlatformAudioOutputImpl>; | 54 friend class base::RefCountedThreadSafe<PepperPlatformAudioOutputImpl>; |
53 | 55 |
54 PepperPlatformAudioOutputImpl(); | 56 explicit PepperPlatformAudioOutputImpl(int render_view_id); |
55 | 57 |
56 bool Initialize( | 58 bool Initialize( |
57 int sample_rate, | 59 int sample_rate, |
58 int frames_per_buffer, | 60 int frames_per_buffer, |
59 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client); | 61 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client); |
60 | 62 |
61 // I/O thread backends to above functions. | 63 // I/O thread backends to above functions. |
62 void InitializeOnIOThread(const media::AudioParameters& params); | 64 void InitializeOnIOThread(const media::AudioParameters& params); |
63 void StartPlaybackOnIOThread(); | 65 void StartPlaybackOnIOThread(); |
64 void StopPlaybackOnIOThread(); | 66 void StopPlaybackOnIOThread(); |
65 void ShutDownOnIOThread(); | 67 void ShutDownOnIOThread(); |
66 | 68 |
67 // The client to notify when the stream is created. THIS MUST ONLY BE | 69 // The client to notify when the stream is created. THIS MUST ONLY BE |
68 // ACCESSED ON THE MAIN THREAD. | 70 // ACCESSED ON THE MAIN THREAD. |
69 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client_; | 71 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client_; |
70 | 72 |
71 // Used to send/receive IPC. THIS MUST ONLY BE ACCESSED ON THE | 73 // Used to send/receive IPC. THIS MUST ONLY BE ACCESSED ON THE |
72 // I/O thread except to send messages and get the message loop. | 74 // I/O thread except to send messages and get the message loop. |
73 media::AudioOutputIPC* ipc_; | 75 scoped_ptr<media::AudioOutputIPC> ipc_; |
74 | 76 |
75 // Our ID on the MessageFilter. THIS MUST ONLY BE ACCESSED ON THE I/O THREAD | 77 // Our ID on the MessageFilter. THIS MUST ONLY BE ACCESSED ON THE I/O THREAD |
76 // or else you could race with the initialize function which sets it. | 78 // or else you could race with the initialize function which sets it. |
77 int32 stream_id_; | 79 int32 stream_id_; |
78 | 80 |
79 base::MessageLoopProxy* main_message_loop_proxy_; | 81 base::MessageLoopProxy* main_message_loop_proxy_; |
80 | 82 |
81 DISALLOW_COPY_AND_ASSIGN(PepperPlatformAudioOutputImpl); | 83 DISALLOW_IMPLICIT_CONSTRUCTORS(PepperPlatformAudioOutputImpl); |
82 }; | 84 }; |
83 | 85 |
84 } // namespace content | 86 } // namespace content |
85 | 87 |
86 #endif // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ | 88 #endif // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_IMPL_H_ |
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