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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 "webkit/plugins/ppapi/ppb_video_capture_impl.h" | 5 #include "webkit/plugins/ppapi/ppb_video_capture_impl.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "ppapi/c/dev/pp_video_capture_dev.h" | 11 #include "ppapi/c/dev/pp_video_capture_dev.h" |
12 #include "ppapi/c/dev/ppb_video_capture_dev.h" | 12 #include "ppapi/c/dev/ppb_video_capture_dev.h" |
13 #include "ppapi/c/pp_completion_callback.h" | 13 #include "ppapi/c/pp_completion_callback.h" |
14 #include "ppapi/c/pp_errors.h" | 14 #include "ppapi/c/pp_errors.h" |
15 #include "ppapi/thunk/enter.h" | 15 #include "ppapi/thunk/enter.h" |
16 #include "webkit/plugins/ppapi/common.h" | 16 #include "webkit/plugins/ppapi/common.h" |
17 #include "webkit/plugins/ppapi/plugin_module.h" | 17 #include "webkit/plugins/ppapi/plugin_module.h" |
18 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h" | 18 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h" |
19 #include "webkit/plugins/ppapi/ppb_buffer_impl.h" | 19 #include "webkit/plugins/ppapi/ppb_buffer_impl.h" |
| 20 #include "webkit/plugins/ppapi/resource_helper.h" |
20 #include "webkit/plugins/ppapi/resource_tracker.h" | 21 #include "webkit/plugins/ppapi/resource_tracker.h" |
21 | 22 |
22 using ppapi::thunk::EnterResourceNoLock; | 23 using ppapi::thunk::EnterResourceNoLock; |
23 using ppapi::thunk::PPB_Buffer_API; | 24 using ppapi::thunk::PPB_Buffer_API; |
24 using ppapi::thunk::PPB_VideoCapture_API; | 25 using ppapi::thunk::PPB_VideoCapture_API; |
25 | 26 |
26 namespace webkit { | 27 namespace webkit { |
27 namespace ppapi { | 28 namespace ppapi { |
28 | 29 |
29 PPB_VideoCapture_Impl::PPB_VideoCapture_Impl(PluginInstance* instance) | 30 PPB_VideoCapture_Impl::PPB_VideoCapture_Impl(PP_Instance instance) |
30 : Resource(instance), | 31 : Resource(instance), |
31 buffer_count_hint_(0), | 32 buffer_count_hint_(0), |
32 ppp_videocapture_(NULL), | 33 ppp_videocapture_(NULL), |
33 status_(PP_VIDEO_CAPTURE_STATUS_STOPPED) { | 34 status_(PP_VIDEO_CAPTURE_STATUS_STOPPED) { |
34 } | 35 } |
35 | 36 |
36 PPB_VideoCapture_Impl::~PPB_VideoCapture_Impl() { | 37 PPB_VideoCapture_Impl::~PPB_VideoCapture_Impl() { |
37 if (platform_video_capture_.get()) | 38 if (platform_video_capture_.get()) |
38 StopCapture(); | 39 StopCapture(); |
39 } | 40 } |
40 | 41 |
41 bool PPB_VideoCapture_Impl::Init() { | 42 bool PPB_VideoCapture_Impl::Init() { |
42 ppp_videocapture_ = | 43 PluginInstance* instance = ResourceHelper::GetPluginInstance(this); |
43 static_cast<const PPP_VideoCapture_Dev*>(instance()->module()-> | 44 ppp_videocapture_ = static_cast<const PPP_VideoCapture_Dev*>( |
44 GetPluginInterface(PPP_VIDEO_CAPTURE_DEV_INTERFACE)); | 45 instance->module()->GetPluginInterface(PPP_VIDEO_CAPTURE_DEV_INTERFACE)); |
45 if (!ppp_videocapture_) | 46 if (!ppp_videocapture_) |
46 return false; | 47 return false; |
47 | 48 |
48 platform_video_capture_.reset( | 49 platform_video_capture_.reset( |
49 instance()->delegate()->CreateVideoCapture(this)); | 50 instance->delegate()->CreateVideoCapture(this)); |
50 return !!platform_video_capture_.get(); | 51 return !!platform_video_capture_.get(); |
51 } | 52 } |
52 | 53 |
53 PPB_VideoCapture_API* PPB_VideoCapture_Impl::AsPPB_VideoCapture_API() { | 54 PPB_VideoCapture_API* PPB_VideoCapture_Impl::AsPPB_VideoCapture_API() { |
54 return this; | 55 return this; |
55 } | 56 } |
56 | 57 |
57 int32_t PPB_VideoCapture_Impl::StartCapture( | 58 int32_t PPB_VideoCapture_Impl::StartCapture( |
58 const PP_VideoCaptureDeviceInfo_Dev& requested_info, | 59 const PP_VideoCaptureDeviceInfo_Dev& requested_info, |
59 uint32_t buffer_count) { | 60 uint32_t buffer_count) { |
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154 } | 155 } |
155 | 156 |
156 void PPB_VideoCapture_Impl::OnError(media::VideoCapture* capture, | 157 void PPB_VideoCapture_Impl::OnError(media::VideoCapture* capture, |
157 int error_code) { | 158 int error_code) { |
158 // Today, the media layer only sends "1" as an error. | 159 // Today, the media layer only sends "1" as an error. |
159 DCHECK(error_code == 1); | 160 DCHECK(error_code == 1); |
160 // It either comes because some error was detected while starting (e.g. 2 | 161 // It either comes because some error was detected while starting (e.g. 2 |
161 // conflicting "master" resolution), or because the browser failed to start | 162 // conflicting "master" resolution), or because the browser failed to start |
162 // the capture. | 163 // the capture. |
163 status_ = PP_VIDEO_CAPTURE_STATUS_STOPPED; | 164 status_ = PP_VIDEO_CAPTURE_STATUS_STOPPED; |
164 ppp_videocapture_->OnError(instance()->pp_instance(), | 165 ppp_videocapture_->OnError(pp_instance(), pp_resource(), PP_ERROR_FAILED); |
165 ScopedResourceId(this).id, | |
166 PP_ERROR_FAILED); | |
167 } | 166 } |
168 | 167 |
169 void PPB_VideoCapture_Impl::OnBufferReady( | 168 void PPB_VideoCapture_Impl::OnBufferReady( |
170 media::VideoCapture* capture, | 169 media::VideoCapture* capture, |
171 scoped_refptr<media::VideoCapture::VideoFrameBuffer> buffer) { | 170 scoped_refptr<media::VideoCapture::VideoFrameBuffer> buffer) { |
172 DCHECK(buffer.get()); | 171 DCHECK(buffer.get()); |
173 for (uint32_t i = 0; i < buffers_.size(); ++i) { | 172 for (uint32_t i = 0; i < buffers_.size(); ++i) { |
174 if (!buffers_[i].in_use) { | 173 if (!buffers_[i].in_use) { |
175 // TODO(piman): it looks like stride isn't actually used/filled. | 174 // TODO(piman): it looks like stride isn't actually used/filled. |
176 DCHECK(buffer->stride == 0); | 175 DCHECK(buffer->stride == 0); |
177 size_t size = std::min(static_cast<size_t>(buffers_[i].buffer->size()), | 176 size_t size = std::min(static_cast<size_t>(buffers_[i].buffer->size()), |
178 buffer->buffer_size); | 177 buffer->buffer_size); |
179 memcpy(buffers_[i].data, buffer->memory_pointer, size); | 178 memcpy(buffers_[i].data, buffer->memory_pointer, size); |
180 platform_video_capture_->FeedBuffer(buffer); | 179 platform_video_capture_->FeedBuffer(buffer); |
181 ppp_videocapture_->OnBufferReady(instance()->pp_instance(), | 180 ppp_videocapture_->OnBufferReady(pp_instance(), pp_resource(), i); |
182 ScopedResourceId(this).id, | |
183 i); | |
184 return; | 181 return; |
185 } | 182 } |
186 } | 183 } |
187 // TODO(piman): signal dropped buffers ? | 184 // TODO(piman): signal dropped buffers ? |
188 platform_video_capture_->FeedBuffer(buffer); | 185 platform_video_capture_->FeedBuffer(buffer); |
189 } | 186 } |
190 | 187 |
191 void PPB_VideoCapture_Impl::OnDeviceInfoReceived( | 188 void PPB_VideoCapture_Impl::OnDeviceInfoReceived( |
192 media::VideoCapture* capture, | 189 media::VideoCapture* capture, |
193 const media::VideoCaptureParams& device_info) { | 190 const media::VideoCaptureParams& device_info) { |
194 PP_VideoCaptureDeviceInfo_Dev info = { | 191 PP_VideoCaptureDeviceInfo_Dev info = { |
195 device_info.width, | 192 device_info.width, |
196 device_info.height, | 193 device_info.height, |
197 device_info.frame_per_second | 194 device_info.frame_per_second |
198 }; | 195 }; |
199 ReleaseBuffers(); | 196 ReleaseBuffers(); |
200 | 197 |
201 // Allocate buffers. We keep a reference to them, that is released in | 198 // Allocate buffers. We keep a reference to them, that is released in |
202 // ReleaseBuffers. | 199 // ReleaseBuffers. |
203 // YUV 4:2:0 | 200 // YUV 4:2:0 |
204 int uv_width = info.width / 2; | 201 int uv_width = info.width / 2; |
205 int uv_height = info.height / 2; | 202 int uv_height = info.height / 2; |
206 size_t size = info.width * info.height + 2 * uv_width * uv_height; | 203 size_t size = info.width * info.height + 2 * uv_width * uv_height; |
207 scoped_array<PP_Resource> resources(new PP_Resource[buffer_count_hint_]); | 204 scoped_array<PP_Resource> resources(new PP_Resource[buffer_count_hint_]); |
208 | 205 |
209 buffers_.reserve(buffer_count_hint_); | 206 buffers_.reserve(buffer_count_hint_); |
210 for (size_t i = 0; i < buffer_count_hint_; ++i) { | 207 for (size_t i = 0; i < buffer_count_hint_; ++i) { |
211 resources[i] = PPB_Buffer_Impl::Create(instance(), size); | 208 resources[i] = PPB_Buffer_Impl::Create(pp_instance(), size); |
212 if (!resources[i]) | 209 if (!resources[i]) |
213 break; | 210 break; |
214 | 211 |
215 EnterResourceNoLock<PPB_Buffer_API> enter(resources[i], true); | 212 EnterResourceNoLock<PPB_Buffer_API> enter(resources[i], true); |
216 DCHECK(enter.succeeded()); | 213 DCHECK(enter.succeeded()); |
217 | 214 |
218 BufferInfo info; | 215 BufferInfo info; |
219 info.buffer = static_cast<PPB_Buffer_Impl*>(enter.object()); | 216 info.buffer = static_cast<PPB_Buffer_Impl*>(enter.object()); |
220 info.data = info.buffer->Map(); | 217 info.data = info.buffer->Map(); |
221 if (!info.data) { | 218 if (!info.data) { |
222 ResourceTracker::Get()->ReleaseResource(resources[i]); | 219 ResourceTracker::Get()->ReleaseResource(resources[i]); |
223 break; | 220 break; |
224 } | 221 } |
225 buffers_.push_back(info); | 222 buffers_.push_back(info); |
226 } | 223 } |
227 | 224 |
228 if (buffers_.empty()) { | 225 if (buffers_.empty()) { |
229 // We couldn't allocate/map buffers at all. Send an error and stop the | 226 // We couldn't allocate/map buffers at all. Send an error and stop the |
230 // capture. | 227 // capture. |
231 ppp_videocapture_->OnError(instance()->pp_instance(), | 228 ppp_videocapture_->OnError(pp_instance(), pp_resource(), PP_ERROR_NOMEMORY); |
232 ScopedResourceId(this).id, | |
233 PP_ERROR_NOMEMORY); | |
234 status_ = PP_VIDEO_CAPTURE_STATUS_STOPPING; | 229 status_ = PP_VIDEO_CAPTURE_STATUS_STOPPING; |
235 platform_video_capture_->StopCapture(this); | 230 platform_video_capture_->StopCapture(this); |
236 return; | 231 return; |
237 } | 232 } |
238 | 233 |
239 ppp_videocapture_->OnDeviceInfo(instance()->pp_instance(), | 234 ppp_videocapture_->OnDeviceInfo(pp_instance(), pp_resource(), &info, |
240 ScopedResourceId(this).id, | 235 buffers_.size(), resources.get()); |
241 &info, | |
242 buffers_.size(), | |
243 resources.get()); | |
244 } | 236 } |
245 | 237 |
246 void PPB_VideoCapture_Impl::ReleaseBuffers() { | 238 void PPB_VideoCapture_Impl::ReleaseBuffers() { |
247 ResourceTracker *tracker = ResourceTracker::Get(); | 239 ResourceTracker *tracker = ResourceTracker::Get(); |
248 for (size_t i = 0; i < buffers_.size(); ++i) { | 240 for (size_t i = 0; i < buffers_.size(); ++i) { |
249 buffers_[i].buffer->Unmap(); | 241 buffers_[i].buffer->Unmap(); |
250 tracker->ReleaseResource(buffers_[i].buffer->pp_resource()); | 242 tracker->ReleaseResource(buffers_[i].buffer->pp_resource()); |
251 } | 243 } |
252 buffers_.clear(); | 244 buffers_.clear(); |
253 } | 245 } |
254 | 246 |
255 void PPB_VideoCapture_Impl::SendStatus() { | 247 void PPB_VideoCapture_Impl::SendStatus() { |
256 ppp_videocapture_->OnStatus(instance()->pp_instance(), | 248 ppp_videocapture_->OnStatus(pp_instance(), pp_resource(), status_); |
257 ScopedResourceId(this).id, | |
258 status_); | |
259 } | 249 } |
260 | 250 |
261 PPB_VideoCapture_Impl::BufferInfo::BufferInfo() | 251 PPB_VideoCapture_Impl::BufferInfo::BufferInfo() |
262 : in_use(false), | 252 : in_use(false), |
263 data(NULL), | 253 data(NULL), |
264 buffer() { | 254 buffer() { |
265 } | 255 } |
266 | 256 |
267 PPB_VideoCapture_Impl::BufferInfo::~BufferInfo() { | 257 PPB_VideoCapture_Impl::BufferInfo::~BufferInfo() { |
268 } | 258 } |
269 | 259 |
270 } // namespace ppapi | 260 } // namespace ppapi |
271 } // namespace webkit | 261 } // namespace webkit |
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