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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/pepper/pepper_platform_audio_output_impl.h" | 5 #include "content/renderer/pepper/pepper_platform_audio_output_impl.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/message_loop_proxy.h" | 9 #include "base/message_loop_proxy.h" |
10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
11 #include "content/common/child_process.h" | 11 #include "content/common/child_process.h" |
12 #include "content/common/media/audio_messages.h" | 12 #include "content/common/media/audio_messages.h" |
13 #include "content/renderer/media/audio_hardware.h" | 13 #include "content/renderer/media/audio_hardware.h" |
14 #include "content/renderer/render_thread_impl.h" | 14 #include "content/renderer/render_thread_impl.h" |
15 | 15 |
16 namespace content { | 16 namespace content { |
17 | 17 |
18 PepperPlatformAudioOutputImpl::PepperPlatformAudioOutputImpl() | |
19 : client_(NULL), | |
20 stream_id_(0), | |
21 main_message_loop_proxy_(base::MessageLoopProxy::current()) { | |
22 filter_ = RenderThreadImpl::current()->audio_message_filter(); | |
23 } | |
24 | |
25 PepperPlatformAudioOutputImpl::~PepperPlatformAudioOutputImpl() { | |
26 // Make sure we have been shut down. Warning: this will usually happen on | |
27 // the I/O thread! | |
28 DCHECK_EQ(0, stream_id_); | |
29 DCHECK(!client_); | |
30 } | |
31 | |
32 // static | 18 // static |
33 PepperPlatformAudioOutputImpl* PepperPlatformAudioOutputImpl::Create( | 19 PepperPlatformAudioOutputImpl* PepperPlatformAudioOutputImpl::Create( |
34 int sample_rate, | 20 int sample_rate, |
35 int frames_per_buffer, | 21 int frames_per_buffer, |
36 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client) { | 22 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client) { |
37 scoped_refptr<PepperPlatformAudioOutputImpl> audio_output( | 23 scoped_refptr<PepperPlatformAudioOutputImpl> audio_output( |
38 new PepperPlatformAudioOutputImpl); | 24 new PepperPlatformAudioOutputImpl); |
39 if (audio_output->Initialize(sample_rate, frames_per_buffer, client)) { | 25 if (audio_output->Initialize(sample_rate, frames_per_buffer, client)) { |
40 // Balanced by Release invoked in | 26 // Balanced by Release invoked in |
41 // PepperPlatformAudioOutputImpl::ShutDownOnIOThread(). | 27 // PepperPlatformAudioOutputImpl::ShutDownOnIOThread(). |
(...skipping 26 matching lines...) Expand all Loading... |
68 | 54 |
69 void PepperPlatformAudioOutputImpl::ShutDown() { | 55 void PepperPlatformAudioOutputImpl::ShutDown() { |
70 // Called on the main thread to stop all audio callbacks. We must only change | 56 // Called on the main thread to stop all audio callbacks. We must only change |
71 // the client on the main thread, and the delegates from the I/O thread. | 57 // the client on the main thread, and the delegates from the I/O thread. |
72 client_ = NULL; | 58 client_ = NULL; |
73 ChildProcess::current()->io_message_loop()->PostTask( | 59 ChildProcess::current()->io_message_loop()->PostTask( |
74 FROM_HERE, | 60 FROM_HERE, |
75 base::Bind(&PepperPlatformAudioOutputImpl::ShutDownOnIOThread, this)); | 61 base::Bind(&PepperPlatformAudioOutputImpl::ShutDownOnIOThread, this)); |
76 } | 62 } |
77 | 63 |
| 64 void PepperPlatformAudioOutputImpl::OnStateChanged(AudioStreamState state) {} |
| 65 |
| 66 void PepperPlatformAudioOutputImpl::OnStreamCreated( |
| 67 base::SharedMemoryHandle handle, |
| 68 base::SyncSocket::Handle socket_handle, |
| 69 uint32 length) { |
| 70 #if defined(OS_WIN) |
| 71 DCHECK(handle); |
| 72 DCHECK(socket_handle); |
| 73 #else |
| 74 DCHECK_NE(-1, handle.fd); |
| 75 DCHECK_NE(-1, socket_handle); |
| 76 #endif |
| 77 DCHECK(length); |
| 78 |
| 79 if (base::MessageLoopProxy::current() == main_message_loop_proxy_) { |
| 80 // Must dereference the client only on the main thread. Shutdown may have |
| 81 // occurred while the request was in-flight, so we need to NULL check. |
| 82 if (client_) |
| 83 client_->StreamCreated(handle, length, socket_handle); |
| 84 } else { |
| 85 main_message_loop_proxy_->PostTask(FROM_HERE, |
| 86 base::Bind(&PepperPlatformAudioOutputImpl::OnStreamCreated, this, |
| 87 handle, socket_handle, length)); |
| 88 } |
| 89 } |
| 90 |
| 91 PepperPlatformAudioOutputImpl::~PepperPlatformAudioOutputImpl() { |
| 92 // Make sure we have been shut down. Warning: this will usually happen on |
| 93 // the I/O thread! |
| 94 DCHECK_EQ(0, stream_id_); |
| 95 DCHECK(!client_); |
| 96 } |
| 97 |
| 98 PepperPlatformAudioOutputImpl::PepperPlatformAudioOutputImpl() |
| 99 : client_(NULL), |
| 100 stream_id_(0), |
| 101 main_message_loop_proxy_(base::MessageLoopProxy::current()) { |
| 102 filter_ = RenderThreadImpl::current()->audio_message_filter(); |
| 103 } |
| 104 |
78 bool PepperPlatformAudioOutputImpl::Initialize( | 105 bool PepperPlatformAudioOutputImpl::Initialize( |
79 int sample_rate, | 106 int sample_rate, |
80 int frames_per_buffer, | 107 int frames_per_buffer, |
81 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client) { | 108 webkit::ppapi::PluginDelegate::PlatformAudioOutputClient* client) { |
82 DCHECK(client); | 109 DCHECK(client); |
83 // Make sure we don't call init more than once. | 110 // Make sure we don't call init more than once. |
84 DCHECK_EQ(0, stream_id_); | 111 DCHECK_EQ(0, stream_id_); |
85 | 112 |
86 client_ = client; | 113 client_ = client; |
87 | 114 |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
129 return; | 156 return; |
130 | 157 |
131 filter_->Send(new AudioHostMsg_CloseStream(stream_id_)); | 158 filter_->Send(new AudioHostMsg_CloseStream(stream_id_)); |
132 filter_->RemoveDelegate(stream_id_); | 159 filter_->RemoveDelegate(stream_id_); |
133 stream_id_ = 0; | 160 stream_id_ = 0; |
134 | 161 |
135 Release(); // Release for the delegate, balances out the reference taken in | 162 Release(); // Release for the delegate, balances out the reference taken in |
136 // PepperPluginDelegateImpl::CreateAudio. | 163 // PepperPluginDelegateImpl::CreateAudio. |
137 } | 164 } |
138 | 165 |
139 void PepperPlatformAudioOutputImpl::OnStateChanged(AudioStreamState state) { | |
140 } | |
141 | |
142 void PepperPlatformAudioOutputImpl::OnStreamCreated( | |
143 base::SharedMemoryHandle handle, | |
144 base::SyncSocket::Handle socket_handle, | |
145 uint32 length) { | |
146 #if defined(OS_WIN) | |
147 DCHECK(handle); | |
148 DCHECK(socket_handle); | |
149 #else | |
150 DCHECK_NE(-1, handle.fd); | |
151 DCHECK_NE(-1, socket_handle); | |
152 #endif | |
153 DCHECK(length); | |
154 | |
155 if (base::MessageLoopProxy::current() == main_message_loop_proxy_) { | |
156 // Must dereference the client only on the main thread. Shutdown may have | |
157 // occurred while the request was in-flight, so we need to NULL check. | |
158 if (client_) | |
159 client_->StreamCreated(handle, length, socket_handle); | |
160 } else { | |
161 main_message_loop_proxy_->PostTask(FROM_HERE, | |
162 base::Bind(&PepperPlatformAudioOutputImpl::OnStreamCreated, this, | |
163 handle, socket_handle, length)); | |
164 } | |
165 } | |
166 | |
167 } // namespace content | 166 } // namespace content |
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