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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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113 this, | 113 this, |
114 qm_callback_.get())), | 114 qm_callback_.get())), |
115 stats_proxy_(stats_proxy), | 115 stats_proxy_(stats_proxy), |
116 pre_encode_callback_(pre_encode_callback), | 116 pre_encode_callback_(pre_encode_callback), |
117 overuse_detector_(overuse_detector), | 117 overuse_detector_(overuse_detector), |
118 pacer_(pacer), | 118 pacer_(pacer), |
119 send_payload_router_(payload_router), | 119 send_payload_router_(payload_router), |
120 bitrate_allocator_(bitrate_allocator), | 120 bitrate_allocator_(bitrate_allocator), |
121 time_of_last_frame_activity_ms_(0), | 121 time_of_last_frame_activity_ms_(0), |
122 encoder_config_(), | 122 encoder_config_(), |
123 min_transmit_bitrate_kbps_(0), | 123 min_transmit_bitrate_bps_(0), |
124 last_observed_bitrate_bps_(0), | 124 last_observed_bitrate_bps_(0), |
125 network_is_transmitting_(true), | 125 network_is_transmitting_(true), |
126 encoder_paused_(false), | 126 encoder_paused_(false), |
127 encoder_paused_and_dropped_frame_(false), | 127 encoder_paused_and_dropped_frame_(false), |
128 time_last_intra_request_ms_(ssrcs.size(), -1), | 128 time_last_intra_request_ms_(ssrcs.size(), -1), |
129 module_process_thread_(module_process_thread), | 129 module_process_thread_(module_process_thread), |
130 has_received_sli_(false), | 130 has_received_sli_(false), |
131 picture_id_sli_(0), | 131 picture_id_sli_(0), |
132 has_received_rpsi_(false), | 132 has_received_rpsi_(false), |
133 picture_id_rpsi_(0), | 133 picture_id_rpsi_(0), |
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187 } | 187 } |
188 return 0; | 188 return 0; |
189 } | 189 } |
190 | 190 |
191 int32_t ViEEncoder::DeRegisterExternalEncoder(uint8_t pl_type) { | 191 int32_t ViEEncoder::DeRegisterExternalEncoder(uint8_t pl_type) { |
192 if (vcm_->RegisterExternalEncoder(NULL, pl_type) != VCM_OK) { | 192 if (vcm_->RegisterExternalEncoder(NULL, pl_type) != VCM_OK) { |
193 return -1; | 193 return -1; |
194 } | 194 } |
195 return 0; | 195 return 0; |
196 } | 196 } |
197 void ViEEncoder::SetEncoder(const webrtc::VideoCodec& video_codec) { | 197 void ViEEncoder::SetEncoder(const webrtc::VideoCodec& video_codec, |
| 198 int min_transmit_bitrate_bps) { |
198 RTC_DCHECK(send_payload_router_ != NULL); | 199 RTC_DCHECK(send_payload_router_ != NULL); |
199 // Setting target width and height for VPM. | 200 // Setting target width and height for VPM. |
200 RTC_CHECK_EQ(VPM_OK, | 201 RTC_CHECK_EQ(VPM_OK, |
201 vp_->SetTargetResolution(video_codec.width, video_codec.height, | 202 vp_->SetTargetResolution(video_codec.width, video_codec.height, |
202 video_codec.maxFramerate)); | 203 video_codec.maxFramerate)); |
203 | 204 |
204 // Cache codec before calling AddBitrateObserver (which calls OnNetworkChanged | 205 // Cache codec before calling AddBitrateObserver (which calls OnNetworkChanged |
205 // that makes use of the number of simulcast streams configured). | 206 // that makes use of the number of simulcast streams configured). |
206 { | 207 { |
207 rtc::CritScope lock(&data_cs_); | 208 rtc::CritScope lock(&data_cs_); |
208 encoder_config_ = video_codec; | 209 encoder_config_ = video_codec; |
209 encoder_paused_ = true; | 210 encoder_paused_ = true; |
| 211 min_transmit_bitrate_bps_ = min_transmit_bitrate_bps; |
210 } | 212 } |
211 | 213 |
212 // Add a bitrate observer to the allocator and update the start, max and | 214 // Add a bitrate observer to the allocator and update the start, max and |
213 // min bitrates of the bitrate controller as needed. | 215 // min bitrates of the bitrate controller as needed. |
214 int allocated_bitrate_bps = bitrate_allocator_->AddBitrateObserver( | 216 int allocated_bitrate_bps = bitrate_allocator_->AddBitrateObserver( |
215 bitrate_observer_.get(), video_codec.minBitrate * 1000, | 217 bitrate_observer_.get(), video_codec.minBitrate * 1000, |
216 video_codec.maxBitrate * 1000); | 218 video_codec.maxBitrate * 1000); |
217 | 219 |
218 webrtc::VideoCodec modified_video_codec = video_codec; | 220 webrtc::VideoCodec modified_video_codec = video_codec; |
219 modified_video_codec.startBitrate = allocated_bitrate_bps / 1000; | 221 modified_video_codec.startBitrate = allocated_bitrate_bps / 1000; |
220 | 222 |
221 size_t max_data_payload_length = send_payload_router_->MaxPayloadLength(); | 223 size_t max_data_payload_length = send_payload_router_->MaxPayloadLength(); |
222 bool success = vcm_->RegisterSendCodec( | 224 bool success = vcm_->RegisterSendCodec( |
223 &modified_video_codec, number_of_cores_, | 225 &modified_video_codec, number_of_cores_, |
224 static_cast<uint32_t>(max_data_payload_length)) == VCM_OK; | 226 static_cast<uint32_t>(max_data_payload_length)) == VCM_OK; |
225 if (!success) { | 227 if (!success) { |
226 LOG(LS_ERROR) << "Failed to configure encoder."; | 228 LOG(LS_ERROR) << "Failed to configure encoder."; |
227 RTC_DCHECK(success); | 229 RTC_DCHECK(success); |
228 } | 230 } |
229 | 231 |
230 send_payload_router_->SetSendingRtpModules( | 232 send_payload_router_->SetSendingRtpModules( |
231 video_codec.numberOfSimulcastStreams); | 233 video_codec.numberOfSimulcastStreams); |
232 | 234 |
233 // Restart the media flow | 235 // Restart the media flow |
234 Restart(); | 236 Restart(); |
| 237 if (stats_proxy_) { |
| 238 // Clear stats for disabled layers. |
| 239 for (size_t i = video_codec.numberOfSimulcastStreams; i < ssrcs_.size(); |
| 240 ++i) { |
| 241 stats_proxy_->OnInactiveSsrc(ssrcs_[i]); |
| 242 } |
| 243 VideoEncoderConfig::ContentType content_type; |
| 244 switch (video_codec.mode) { |
| 245 case kRealtimeVideo: |
| 246 content_type = VideoEncoderConfig::ContentType::kRealtimeVideo; |
| 247 break; |
| 248 case kScreensharing: |
| 249 content_type = VideoEncoderConfig::ContentType::kScreen; |
| 250 break; |
| 251 default: |
| 252 RTC_NOTREACHED(); |
| 253 break; |
| 254 } |
| 255 stats_proxy_->SetContentType(content_type); |
| 256 } |
235 } | 257 } |
236 | 258 |
237 int ViEEncoder::GetPaddingNeededBps() const { | 259 int ViEEncoder::GetPaddingNeededBps() const { |
238 int64_t time_of_last_frame_activity_ms; | 260 int64_t time_of_last_frame_activity_ms; |
239 int min_transmit_bitrate_bps; | 261 int min_transmit_bitrate_bps; |
240 int bitrate_bps; | 262 int bitrate_bps; |
241 VideoCodec send_codec; | 263 VideoCodec send_codec; |
242 { | 264 { |
243 rtc::CritScope lock(&data_cs_); | 265 rtc::CritScope lock(&data_cs_); |
244 bool send_padding = encoder_config_.numberOfSimulcastStreams > 1 || | 266 bool send_padding = encoder_config_.numberOfSimulcastStreams > 1 || |
245 video_suspended_ || min_transmit_bitrate_kbps_ > 0; | 267 video_suspended_ || min_transmit_bitrate_bps_ > 0; |
246 if (!send_padding) | 268 if (!send_padding) |
247 return 0; | 269 return 0; |
248 time_of_last_frame_activity_ms = time_of_last_frame_activity_ms_; | 270 time_of_last_frame_activity_ms = time_of_last_frame_activity_ms_; |
249 min_transmit_bitrate_bps = 1000 * min_transmit_bitrate_kbps_; | 271 min_transmit_bitrate_bps = min_transmit_bitrate_bps_; |
250 bitrate_bps = last_observed_bitrate_bps_; | 272 bitrate_bps = last_observed_bitrate_bps_; |
251 send_codec = encoder_config_; | 273 send_codec = encoder_config_; |
252 } | 274 } |
253 | 275 |
254 bool video_is_suspended = vcm_->VideoSuspended(); | 276 bool video_is_suspended = vcm_->VideoSuspended(); |
255 | 277 |
256 // Find the max amount of padding we can allow ourselves to send at this | 278 // Find the max amount of padding we can allow ourselves to send at this |
257 // point, based on which streams are currently active and what our current | 279 // point, based on which streams are currently active and what our current |
258 // available bandwidth is. | 280 // available bandwidth is. |
259 int pad_up_to_bitrate_bps = 0; | 281 int pad_up_to_bitrate_bps = 0; |
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481 return; | 503 return; |
482 } | 504 } |
483 time_last_intra_request_ms_[i] = now_ms; | 505 time_last_intra_request_ms_[i] = now_ms; |
484 } | 506 } |
485 vcm_->IntraFrameRequest(static_cast<int>(i)); | 507 vcm_->IntraFrameRequest(static_cast<int>(i)); |
486 return; | 508 return; |
487 } | 509 } |
488 RTC_NOTREACHED() << "Should not receive keyframe requests on unknown SSRCs."; | 510 RTC_NOTREACHED() << "Should not receive keyframe requests on unknown SSRCs."; |
489 } | 511 } |
490 | 512 |
491 void ViEEncoder::SetMinTransmitBitrate(int min_transmit_bitrate_kbps) { | |
492 assert(min_transmit_bitrate_kbps >= 0); | |
493 rtc::CritScope lock(&data_cs_); | |
494 min_transmit_bitrate_kbps_ = min_transmit_bitrate_kbps; | |
495 } | |
496 | |
497 // Called from ViEBitrateObserver. | 513 // Called from ViEBitrateObserver. |
498 void ViEEncoder::OnNetworkChanged(uint32_t bitrate_bps, | 514 void ViEEncoder::OnNetworkChanged(uint32_t bitrate_bps, |
499 uint8_t fraction_lost, | 515 uint8_t fraction_lost, |
500 int64_t round_trip_time_ms) { | 516 int64_t round_trip_time_ms) { |
501 LOG(LS_VERBOSE) << "OnNetworkChanged, bitrate" << bitrate_bps | 517 LOG(LS_VERBOSE) << "OnNetworkChanged, bitrate" << bitrate_bps |
502 << " packet loss " << static_cast<int>(fraction_lost) | 518 << " packet loss " << static_cast<int>(fraction_lost) |
503 << " rtt " << round_trip_time_ms; | 519 << " rtt " << round_trip_time_ms; |
504 RTC_DCHECK(send_payload_router_ != NULL); | 520 RTC_DCHECK(send_payload_router_ != NULL); |
505 vcm_->SetChannelParameters(bitrate_bps, fraction_lost, round_trip_time_ms); | 521 vcm_->SetChannelParameters(bitrate_bps, fraction_lost, round_trip_time_ms); |
506 bool video_is_suspended = vcm_->VideoSuspended(); | 522 bool video_is_suspended = vcm_->VideoSuspended(); |
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551 const uint32_t width, | 567 const uint32_t width, |
552 const uint32_t height) { | 568 const uint32_t height) { |
553 return vp_->SetTargetResolution(width, height, frame_rate); | 569 return vp_->SetTargetResolution(width, height, frame_rate); |
554 } | 570 } |
555 | 571 |
556 void QMVideoSettingsCallback::SetTargetFramerate(int frame_rate) { | 572 void QMVideoSettingsCallback::SetTargetFramerate(int frame_rate) { |
557 vp_->SetTargetFramerate(frame_rate); | 573 vp_->SetTargetFramerate(frame_rate); |
558 } | 574 } |
559 | 575 |
560 } // namespace webrtc | 576 } // namespace webrtc |
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