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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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