10e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org/* 20e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * libjingle 30e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * Copyright 2011 Google Inc. 40e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 50e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * Redistribution and use in source and binary forms, with or without 60e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * modification, are permitted provided that the following conditions are met: 70e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 80e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 1. Redistributions of source code must retain the above copyright notice, 90e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * this list of conditions and the following disclaimer. 100e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 2. Redistributions in binary form must reproduce the above copyright notice, 110e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * this list of conditions and the following disclaimer in the documentation 120e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * and/or other materials provided with the distribution. 130e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 3. The name of the author may not be used to endorse or promote products 140e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * derived from this software without specific prior written permission. 150e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * 160e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 170e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 180e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 190e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 200e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 210e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 220e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 230e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 240e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 250e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 260e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org */ 270e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 280e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#include "talk/session/media/currentspeakermonitor.h" 290e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 3027edee5dac02dfba11461bb45f0cd1e7cefa63bdbuildbot@webrtc.org#include "talk/media/base/streamparams.h" 3127edee5dac02dfba11461bb45f0cd1e7cefa63bdbuildbot@webrtc.org#include "talk/session/media/audiomonitor.h" 3227edee5dac02dfba11461bb45f0cd1e7cefa63bdbuildbot@webrtc.org#include "talk/session/media/mediamessages.h" 33cf81adffe15fa8ea0f333432e41f6d504148f18abuildbot@webrtc.org#include "webrtc/base/logging.h" 340e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 350e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgnamespace cricket { 360e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 370e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgnamespace { 380e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgconst int kMaxAudioLevel = 9; 390e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// To avoid overswitching, we disable switching for a period of time after a 400e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// switch is done. 410e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgconst int kDefaultMinTimeBetweenSwitches = 1000; 420e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 430e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 4417703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.orgCurrentSpeakerMonitor::CurrentSpeakerMonitor( 4517703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org AudioSourceContext* audio_source_context, BaseSession* session) 460e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org : started_(false), 4717703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org audio_source_context_(audio_source_context), 480e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org session_(session), 490e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org current_speaker_ssrc_(0), 500e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org earliest_permitted_switch_time_(0), 510e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org min_time_between_switches_(kDefaultMinTimeBetweenSwitches) { 520e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 530e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 540e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgCurrentSpeakerMonitor::~CurrentSpeakerMonitor() { 550e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org Stop(); 560e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 570e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 580e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgvoid CurrentSpeakerMonitor::Start() { 590e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (!started_) { 6017703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org audio_source_context_->SignalAudioMonitor.connect( 610e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org this, &CurrentSpeakerMonitor::OnAudioMonitor); 6217703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org audio_source_context_->SignalMediaStreamsUpdate.connect( 630e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org this, &CurrentSpeakerMonitor::OnMediaStreamsUpdate); 6419f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org audio_source_context_->SignalMediaStreamsReset.connect( 6519f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org this, &CurrentSpeakerMonitor::OnMediaStreamsReset); 660e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 670e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org started_ = true; 680e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 690e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 700e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 710e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgvoid CurrentSpeakerMonitor::Stop() { 720e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (started_) { 7317703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org audio_source_context_->SignalAudioMonitor.disconnect(this); 7417703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org audio_source_context_->SignalMediaStreamsUpdate.disconnect(this); 750e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 760e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org started_ = false; 770e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org ssrc_to_speaking_state_map_.clear(); 780e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org current_speaker_ssrc_ = 0; 790e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org earliest_permitted_switch_time_ = 0; 800e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 810e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 820e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 830e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgvoid CurrentSpeakerMonitor::set_min_time_between_switches( 840e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org uint32 min_time_between_switches) { 850e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org min_time_between_switches_ = min_time_between_switches; 860e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 870e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 8817703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.orgvoid CurrentSpeakerMonitor::OnAudioMonitor( 8917703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org AudioSourceContext* audio_source_context, const AudioInfo& info) { 900e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org std::map<uint32, int> active_ssrc_to_level_map; 910e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org cricket::AudioInfo::StreamList::const_iterator stream_list_it; 920e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org for (stream_list_it = info.active_streams.begin(); 930e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org stream_list_it != info.active_streams.end(); ++stream_list_it) { 940e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org uint32 ssrc = stream_list_it->first; 950e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org active_ssrc_to_level_map[ssrc] = stream_list_it->second; 960e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 970e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // It's possible we haven't yet added this source to our map. If so, 980e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // add it now with a "not speaking" state. 990e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (ssrc_to_speaking_state_map_.find(ssrc) == 1000e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org ssrc_to_speaking_state_map_.end()) { 1010e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org ssrc_to_speaking_state_map_[ssrc] = SS_NOT_SPEAKING; 1020e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1030e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1040e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1050e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org int max_level = 0; 1060e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org uint32 loudest_speaker_ssrc = 0; 1070e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1080e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Update the speaking states of all participants based on the new audio 1090e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // level information. Also retain loudest speaker. 1100e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org std::map<uint32, SpeakingState>::iterator state_it; 1110e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org for (state_it = ssrc_to_speaking_state_map_.begin(); 1120e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it != ssrc_to_speaking_state_map_.end(); ++state_it) { 1130e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org bool is_previous_speaker = current_speaker_ssrc_ == state_it->first; 1140e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1150e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // This uses a state machine in order to gradually identify 1160e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // members as having started or stopped speaking. Matches the 1170e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // algorithm used by the hangouts js code. 1180e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1190e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org std::map<uint32, int>::const_iterator level_it = 1200e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org active_ssrc_to_level_map.find(state_it->first); 1210e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Note that the stream map only contains streams with non-zero audio 1220e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // levels. 1230e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org int level = (level_it != active_ssrc_to_level_map.end()) ? 1240e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org level_it->second : 0; 1250e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org switch (state_it->second) { 1260e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org case SS_NOT_SPEAKING: 1270e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > 0) { 1280e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Reset level because we don't think they're really speaking. 1290e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org level = 0; 1300e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_MIGHT_BE_SPEAKING; 1310e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else { 1320e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // State unchanged. 1330e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1340e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org break; 1350e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org case SS_MIGHT_BE_SPEAKING: 1360e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > 0) { 1370e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_SPEAKING; 1380e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else { 1390e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_NOT_SPEAKING; 1400e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1410e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org break; 1420e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org case SS_SPEAKING: 1430e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > 0) { 1440e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // State unchanged. 1450e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else { 1460e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_WAS_SPEAKING_RECENTLY1; 1470e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (is_previous_speaker) { 1480e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Assume this is an inter-word silence and assign him the highest 1490e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // volume. 1500e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org level = kMaxAudioLevel; 1510e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1520e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1530e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org break; 1540e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org case SS_WAS_SPEAKING_RECENTLY1: 1550e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > 0) { 1560e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_SPEAKING; 1570e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else { 1580e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_WAS_SPEAKING_RECENTLY2; 1590e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (is_previous_speaker) { 1600e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Assume this is an inter-word silence and assign him the highest 1610e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // volume. 1620e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org level = kMaxAudioLevel; 1630e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1640e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1650e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org break; 1660e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org case SS_WAS_SPEAKING_RECENTLY2: 1670e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > 0) { 1680e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_SPEAKING; 1690e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else { 1700e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org state_it->second = SS_NOT_SPEAKING; 1710e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1720e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org break; 1730e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1740e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1750e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (level > max_level) { 1760e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org loudest_speaker_ssrc = state_it->first; 1770e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org max_level = level; 1780e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } else if (level > 0 && level == max_level && is_previous_speaker) { 1790e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Favor continuity of loudest speakers if audio levels are equal. 1800e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org loudest_speaker_ssrc = state_it->first; 1810e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1820e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1830e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 1840e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // We avoid over-switching by disabling switching for a period of time after 1850e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // a switch is done. 1862a86ce22ccc387dfa6f8a98ce3eba5c1e6f9e538buildbot@webrtc.org uint32 now = rtc::Time(); 1870e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org if (earliest_permitted_switch_time_ <= now && 1880e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org current_speaker_ssrc_ != loudest_speaker_ssrc) { 1890e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org current_speaker_ssrc_ = loudest_speaker_ssrc; 1900e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org LOG(LS_INFO) << "Current speaker changed to " << current_speaker_ssrc_; 1910e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org earliest_permitted_switch_time_ = now + min_time_between_switches_; 1920e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org SignalUpdate(this, current_speaker_ssrc_); 1930e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 1940e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 1950e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 19617703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.orgvoid CurrentSpeakerMonitor::OnMediaStreamsUpdate( 19719f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org AudioSourceContext* audio_source_context, BaseSession* session, 19817703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org const MediaStreams& added, const MediaStreams& removed) { 19919f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org 20017703693aab12dbb974e99bd96c52a22f0cb564ebuildbot@webrtc.org if (audio_source_context == audio_source_context_ && session == session_) { 2010e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org // Update the speaking state map based on added and removed streams. 2020e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org for (std::vector<cricket::StreamParams>::const_iterator 20319f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org it = removed.audio().begin(); it != removed.audio().end(); ++it) { 2040e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org ssrc_to_speaking_state_map_.erase(it->first_ssrc()); 2050e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 2060e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 2070e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org for (std::vector<cricket::StreamParams>::const_iterator 20819f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org it = added.audio().begin(); it != added.audio().end(); ++it) { 2090e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org ssrc_to_speaking_state_map_[it->first_ssrc()] = SS_NOT_SPEAKING; 2100e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 2110e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org } 2120e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} 2130e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org 21419f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.orgvoid CurrentSpeakerMonitor::OnMediaStreamsReset( 21519f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org AudioSourceContext* audio_source_context, BaseSession* session) { 21619f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org if (audio_source_context == audio_source_context_ && session == session_) { 21719f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org ssrc_to_speaking_state_map_.clear(); 21819f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org } 21919f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org} 22019f8e68ed065baf42fa978516109780398baed3dbuildbot@webrtc.org 2210e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org} // namespace cricket 222