1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "webrtc/video_engine/vie_base_impl.h"
12
13 #include <sstream>
14 #include <string>
15 #include <utility>
16
17 #include "webrtc/engine_configurations.h"
18 #include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp.h"
19 #include "webrtc/modules/video_coding/main/interface/video_coding.h"
20 #include "webrtc/modules/video_processing/main/interface/video_processing.h"
21 #include "webrtc/modules/video_render/include/video_render.h"
22 #include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
23 #include "webrtc/system_wrappers/interface/logging.h"
24 #include "webrtc/video_engine/include/vie_errors.h"
25 #include "webrtc/video_engine/vie_capturer.h"
26 #include "webrtc/video_engine/vie_channel.h"
27 #include "webrtc/video_engine/vie_channel_manager.h"
28 #include "webrtc/video_engine/vie_defines.h"
29 #include "webrtc/video_engine/vie_encoder.h"
30 #include "webrtc/video_engine/vie_impl.h"
31 #include "webrtc/video_engine/vie_input_manager.h"
32 #include "webrtc/video_engine/vie_shared_data.h"
33
34 namespace webrtc {
35
GetInterface(VideoEngine * video_engine)36 ViEBase* ViEBase::GetInterface(VideoEngine* video_engine) {
37 if (!video_engine) {
38 return NULL;
39 }
40 VideoEngineImpl* vie_impl = static_cast<VideoEngineImpl*>(video_engine);
41 ViEBaseImpl* vie_base_impl = vie_impl;
42 (*vie_base_impl)++; // Increase ref count.
43
44 return vie_base_impl;
45 }
46
Release()47 int ViEBaseImpl::Release() {
48 (*this)--; // Decrease ref count.
49
50 int32_t ref_count = GetCount();
51 if (ref_count < 0) {
52 LOG(LS_WARNING) << "ViEBase released too many times.";
53 return -1;
54 }
55 return ref_count;
56 }
57
ViEBaseImpl(const Config & config)58 ViEBaseImpl::ViEBaseImpl(const Config& config)
59 : shared_data_(config) {}
60
~ViEBaseImpl()61 ViEBaseImpl::~ViEBaseImpl() {}
62
Init()63 int ViEBaseImpl::Init() {
64 return 0;
65 }
66
SetVoiceEngine(VoiceEngine * voice_engine)67 int ViEBaseImpl::SetVoiceEngine(VoiceEngine* voice_engine) {
68 LOG_F(LS_INFO) << "SetVoiceEngine";
69 if (shared_data_.channel_manager()->SetVoiceEngine(voice_engine) != 0) {
70 shared_data_.SetLastError(kViEBaseVoEFailure);
71 return -1;
72 }
73 return 0;
74 }
75
RegisterCpuOveruseObserver(int video_channel,CpuOveruseObserver * observer)76 int ViEBaseImpl::RegisterCpuOveruseObserver(int video_channel,
77 CpuOveruseObserver* observer) {
78 LOG_F(LS_INFO) << "RegisterCpuOveruseObserver on channel " << video_channel;
79 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
80 ViEChannel* vie_channel = cs.Channel(video_channel);
81 if (!vie_channel) {
82 shared_data_.SetLastError(kViEBaseInvalidChannelId);
83 return -1;
84 }
85 ViEEncoder* vie_encoder = cs.Encoder(video_channel);
86 assert(vie_encoder);
87
88 ViEInputManagerScoped is(*(shared_data_.input_manager()));
89 ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
90 if (provider) {
91 ViECapturer* capturer = is.Capture(provider->Id());
92 assert(capturer);
93 capturer->RegisterCpuOveruseObserver(observer);
94 }
95
96 shared_data_.overuse_observers()->insert(
97 std::pair<int, CpuOveruseObserver*>(video_channel, observer));
98 return 0;
99 }
100
SetCpuOveruseOptions(int video_channel,const CpuOveruseOptions & options)101 int ViEBaseImpl::SetCpuOveruseOptions(int video_channel,
102 const CpuOveruseOptions& options) {
103 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
104 ViEChannel* vie_channel = cs.Channel(video_channel);
105 if (!vie_channel) {
106 shared_data_.SetLastError(kViEBaseInvalidChannelId);
107 return -1;
108 }
109 ViEEncoder* vie_encoder = cs.Encoder(video_channel);
110 assert(vie_encoder);
111
112 ViEInputManagerScoped is(*(shared_data_.input_manager()));
113 ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
114 if (provider) {
115 ViECapturer* capturer = is.Capture(provider->Id());
116 if (capturer) {
117 capturer->SetCpuOveruseOptions(options);
118 return 0;
119 }
120 }
121 return -1;
122 }
123
GetCpuOveruseMetrics(int video_channel,CpuOveruseMetrics * metrics)124 int ViEBaseImpl::GetCpuOveruseMetrics(int video_channel,
125 CpuOveruseMetrics* metrics) {
126 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
127 ViEChannel* vie_channel = cs.Channel(video_channel);
128 if (!vie_channel) {
129 shared_data_.SetLastError(kViEBaseInvalidChannelId);
130 return -1;
131 }
132 ViEEncoder* vie_encoder = cs.Encoder(video_channel);
133 assert(vie_encoder);
134
135 ViEInputManagerScoped is(*(shared_data_.input_manager()));
136 ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
137 if (provider) {
138 ViECapturer* capturer = is.Capture(provider->Id());
139 if (capturer) {
140 capturer->GetCpuOveruseMetrics(metrics);
141 return 0;
142 }
143 }
144 return -1;
145 }
146
RegisterSendSideDelayObserver(int channel,SendSideDelayObserver * observer)147 void ViEBaseImpl::RegisterSendSideDelayObserver(
148 int channel, SendSideDelayObserver* observer) {
149 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
150 ViEChannel* vie_channel = cs.Channel(channel);
151 assert(vie_channel);
152 vie_channel->RegisterSendSideDelayObserver(observer);
153 }
154
CreateChannel(int & video_channel)155 int ViEBaseImpl::CreateChannel(int& video_channel) { // NOLINT
156 return CreateChannel(video_channel, static_cast<const Config*>(NULL));
157 }
158
CreateChannel(int & video_channel,const Config * config)159 int ViEBaseImpl::CreateChannel(int& video_channel, // NOLINT
160 const Config* config) {
161 if (shared_data_.channel_manager()->CreateChannel(&video_channel,
162 config) == -1) {
163 video_channel = -1;
164 shared_data_.SetLastError(kViEBaseChannelCreationFailed);
165 return -1;
166 }
167 LOG(LS_INFO) << "Video channel created: " << video_channel;
168 return 0;
169 }
170
CreateChannel(int & video_channel,int original_channel)171 int ViEBaseImpl::CreateChannel(int& video_channel, // NOLINT
172 int original_channel) {
173 return CreateChannel(video_channel, original_channel, true);
174 }
175
CreateReceiveChannel(int & video_channel,int original_channel)176 int ViEBaseImpl::CreateReceiveChannel(int& video_channel, // NOLINT
177 int original_channel) {
178 return CreateChannel(video_channel, original_channel, false);
179 }
180
DeleteChannel(const int video_channel)181 int ViEBaseImpl::DeleteChannel(const int video_channel) {
182 {
183 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
184 ViEChannel* vie_channel = cs.Channel(video_channel);
185 if (!vie_channel) {
186 shared_data_.SetLastError(kViEBaseInvalidChannelId);
187 return -1;
188 }
189
190 // Deregister the ViEEncoder if no other channel is using it.
191 ViEEncoder* vie_encoder = cs.Encoder(video_channel);
192 if (cs.ChannelUsingViEEncoder(video_channel) == false) {
193 ViEInputManagerScoped is(*(shared_data_.input_manager()));
194 ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
195 if (provider) {
196 provider->DeregisterFrameCallback(vie_encoder);
197 }
198 }
199 }
200
201 if (shared_data_.channel_manager()->DeleteChannel(video_channel) == -1) {
202 shared_data_.SetLastError(kViEBaseUnknownError);
203 return -1;
204 }
205 LOG(LS_INFO) << "Channel deleted " << video_channel;
206 return 0;
207 }
208
ConnectAudioChannel(const int video_channel,const int audio_channel)209 int ViEBaseImpl::ConnectAudioChannel(const int video_channel,
210 const int audio_channel) {
211 LOG_F(LS_INFO) << "ConnectAudioChannel, video channel " << video_channel
212 << ", audio channel " << audio_channel;
213 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
214 if (!cs.Channel(video_channel)) {
215 shared_data_.SetLastError(kViEBaseInvalidChannelId);
216 return -1;
217 }
218
219 if (shared_data_.channel_manager()->ConnectVoiceChannel(video_channel,
220 audio_channel) != 0) {
221 shared_data_.SetLastError(kViEBaseVoEFailure);
222 return -1;
223 }
224 return 0;
225 }
226
DisconnectAudioChannel(const int video_channel)227 int ViEBaseImpl::DisconnectAudioChannel(const int video_channel) {
228 LOG_F(LS_INFO) << "DisconnectAudioChannel " << video_channel;
229 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
230 if (!cs.Channel(video_channel)) {
231 shared_data_.SetLastError(kViEBaseInvalidChannelId);
232 return -1;
233 }
234
235 if (shared_data_.channel_manager()->DisconnectVoiceChannel(
236 video_channel) != 0) {
237 shared_data_.SetLastError(kViEBaseVoEFailure);
238 return -1;
239 }
240 return 0;
241 }
242
StartSend(const int video_channel)243 int ViEBaseImpl::StartSend(const int video_channel) {
244 LOG_F(LS_INFO) << "StartSend: " << video_channel;
245 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
246 ViEChannel* vie_channel = cs.Channel(video_channel);
247 if (!vie_channel) {
248 shared_data_.SetLastError(kViEBaseInvalidChannelId);
249 return -1;
250 }
251
252 ViEEncoder* vie_encoder = cs.Encoder(video_channel);
253 assert(vie_encoder != NULL);
254 if (vie_encoder->Owner() != video_channel) {
255 LOG_F(LS_ERROR) << "Can't start send on a receive only channel.";
256 shared_data_.SetLastError(kViEBaseReceiveOnlyChannel);
257 return -1;
258 }
259
260 // Pause and trigger a key frame.
261 vie_encoder->Pause();
262 int32_t error = vie_channel->StartSend();
263 if (error != 0) {
264 vie_encoder->Restart();
265 if (error == kViEBaseAlreadySending) {
266 shared_data_.SetLastError(kViEBaseAlreadySending);
267 }
268 LOG_F(LS_ERROR) << "Could not start sending " << video_channel;
269 shared_data_.SetLastError(kViEBaseUnknownError);
270 return -1;
271 }
272 vie_encoder->SendKeyFrame();
273 vie_encoder->Restart();
274 return 0;
275 }
276
StopSend(const int video_channel)277 int ViEBaseImpl::StopSend(const int video_channel) {
278 LOG_F(LS_INFO) << "StopSend " << video_channel;
279
280 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
281 ViEChannel* vie_channel = cs.Channel(video_channel);
282 if (!vie_channel) {
283 shared_data_.SetLastError(kViEBaseInvalidChannelId);
284 return -1;
285 }
286
287 int32_t error = vie_channel->StopSend();
288 if (error != 0) {
289 if (error == kViEBaseNotSending) {
290 shared_data_.SetLastError(kViEBaseNotSending);
291 } else {
292 LOG_F(LS_ERROR) << "Could not stop sending " << video_channel;
293 shared_data_.SetLastError(kViEBaseUnknownError);
294 }
295 return -1;
296 }
297 return 0;
298 }
299
StartReceive(const int video_channel)300 int ViEBaseImpl::StartReceive(const int video_channel) {
301 LOG_F(LS_INFO) << "StartReceive " << video_channel;
302
303 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
304 ViEChannel* vie_channel = cs.Channel(video_channel);
305 if (!vie_channel) {
306 shared_data_.SetLastError(kViEBaseInvalidChannelId);
307 return -1;
308 }
309 if (vie_channel->StartReceive() != 0) {
310 shared_data_.SetLastError(kViEBaseUnknownError);
311 return -1;
312 }
313 return 0;
314 }
315
StopReceive(const int video_channel)316 int ViEBaseImpl::StopReceive(const int video_channel) {
317 LOG_F(LS_INFO) << "StopReceive " << video_channel;
318 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
319 ViEChannel* vie_channel = cs.Channel(video_channel);
320 if (!vie_channel) {
321 shared_data_.SetLastError(kViEBaseInvalidChannelId);
322 return -1;
323 }
324 if (vie_channel->StopReceive() != 0) {
325 shared_data_.SetLastError(kViEBaseUnknownError);
326 return -1;
327 }
328 return 0;
329 }
330
GetVersion(char version[1024])331 int ViEBaseImpl::GetVersion(char version[1024]) {
332 assert(kViEVersionMaxMessageSize == 1024);
333 if (!version) {
334 shared_data_.SetLastError(kViEBaseInvalidArgument);
335 return -1;
336 }
337
338 // Add WebRTC Version.
339 std::stringstream version_stream;
340 version_stream << "VideoEngine 38" << std::endl;
341
342 // Add build info.
343 version_stream << "Build: " << BUILDINFO << std::endl;
344
345 int version_length = version_stream.tellp();
346 assert(version_length < 1024);
347 memcpy(version, version_stream.str().c_str(), version_length);
348 version[version_length] = '\0';
349 return 0;
350 }
351
LastError()352 int ViEBaseImpl::LastError() {
353 return shared_data_.LastErrorInternal();
354 }
355
CreateChannel(int & video_channel,int original_channel,bool sender)356 int ViEBaseImpl::CreateChannel(int& video_channel, // NOLINT
357 int original_channel, bool sender) {
358 ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
359 if (!cs.Channel(original_channel)) {
360 shared_data_.SetLastError(kViEBaseInvalidChannelId);
361 return -1;
362 }
363
364 if (shared_data_.channel_manager()->CreateChannel(&video_channel,
365 original_channel,
366 sender) == -1) {
367 video_channel = -1;
368 shared_data_.SetLastError(kViEBaseChannelCreationFailed);
369 return -1;
370 }
371 LOG_F(LS_INFO) << "VideoChannel created: " << video_channel
372 << ", base channel " << original_channel
373 << ", is send channel : " << sender;
374 return 0;
375 }
376
377 } // namespace webrtc
378