1b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 2b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 4b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Use of this source code is governed by a BSD-style license 5b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * that can be found in the LICENSE file in the root of the source 6b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * tree. An additional intellectual property rights grant can be found 7b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * in the file PATENTS. All contributing project authors may 8b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * be found in the AUTHORS file in the root of the source tree. 9b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 10b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 111bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.org#include "webrtc/modules/video_coding/main/source/timing.h" 121bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.org 131bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.org#include "webrtc/modules/video_coding/main/source/internal_defines.h" 141bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.org#include "webrtc/modules/video_coding/main/source/jitter_buffer_common.h" 151bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.org#include "webrtc/system_wrappers/interface/clock.h" 16d2fb259b3bc61c68f368929510215a7ee7d00fdawu@webrtc.org#include "webrtc/system_wrappers/interface/timestamp_extrapolator.h" 17389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org 18389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgnamespace webrtc { 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 211bb2146351979b6610107419b2a9c86cca2692a3stefan@webrtc.orgVCMTiming::VCMTiming(Clock* clock, 22389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org VCMTiming* master_timing) 23389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org : crit_sect_(CriticalSectionWrapper::CreateCriticalSection()), 24389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org clock_(clock), 25389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org master_(false), 26389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org ts_extrapolator_(), 27389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org codec_timer_(), 28389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org render_delay_ms_(kDefaultRenderDelayMs), 29e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org min_playout_delay_ms_(0), 30e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org jitter_delay_ms_(0), 31389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_(0), 32ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org last_decode_ms_(0), 33389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org prev_frame_timestamp_(0) { 34389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (master_timing == NULL) { 35389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org master_ = true; 36d2fb259b3bc61c68f368929510215a7ee7d00fdawu@webrtc.org ts_extrapolator_ = new TimestampExtrapolator(clock_->TimeInMilliseconds()); 37389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } else { 38389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org ts_extrapolator_ = master_timing->ts_extrapolator_; 39389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 40b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 41b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 42389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgVCMTiming::~VCMTiming() { 43389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (master_) { 44389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org delete ts_extrapolator_; 45389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 46389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org delete crit_sect_; 47b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 48b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 49389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgvoid VCMTiming::Reset() { 50389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 5139d9fa5486157fb4b3ab28ae403aeaa6d651e92bwu@webrtc.org ts_extrapolator_->Reset(clock_->TimeInMilliseconds()); 52389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org codec_timer_.Reset(); 53389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org render_delay_ms_ = kDefaultRenderDelayMs; 54e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org min_playout_delay_ms_ = 0; 55e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org jitter_delay_ms_ = 0; 56389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_ = 0; 57389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org prev_frame_timestamp_ = 0; 58b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 59b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 60389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgvoid VCMTiming::ResetDecodeTime() { 61579d63c9b10e749c6553d966158900ab9830bb8bpbos@webrtc.org CriticalSectionScoped lock(crit_sect_); 62389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org codec_timer_.Reset(); 63b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 64b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 65e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.orgvoid VCMTiming::set_render_delay(uint32_t render_delay_ms) { 66389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 67389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org render_delay_ms_ = render_delay_ms; 68b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 69b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 70e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.orgvoid VCMTiming::set_min_playout_delay(uint32_t min_playout_delay_ms) { 71389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 72e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org min_playout_delay_ms_ = min_playout_delay_ms; 73b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 74b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 75e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.orgvoid VCMTiming::SetJitterDelay(uint32_t jitter_delay_ms) { 76389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 77e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org if (jitter_delay_ms != jitter_delay_ms_) { 78e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org jitter_delay_ms_ = jitter_delay_ms; 79389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // When in initial state, set current delay to minimum delay. 80389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (current_delay_ms_ == 0) { 81e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org current_delay_ms_ = jitter_delay_ms_; 82389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 83389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 84b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 85b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 86389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgvoid VCMTiming::UpdateCurrentDelay(uint32_t frame_timestamp) { 87389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 88389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org uint32_t target_delay_ms = TargetDelayInternal(); 89b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 90389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (current_delay_ms_ == 0) { 91389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // Not initialized, set current delay to target. 92389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_ = target_delay_ms; 93389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } else if (target_delay_ms != current_delay_ms_) { 94389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t delay_diff_ms = static_cast<int64_t>(target_delay_ms) - 95389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_; 96389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // Never change the delay with more than 100 ms every second. If we're 97389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // changing the delay in too large steps we will get noticeable freezes. By 98389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // limiting the change we can increase the delay in smaller steps, which 99389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // will be experienced as the video is played in slow motion. When lowering 100389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // the delay the video will be played at a faster pace. 101389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t max_change_ms = 0; 102389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (frame_timestamp < 0x0000ffff && prev_frame_timestamp_ > 0xffff0000) { 103389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // wrap 104389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org max_change_ms = kDelayMaxChangeMsPerS * (frame_timestamp + 105389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org (static_cast<int64_t>(1) << 32) - prev_frame_timestamp_) / 90000; 106389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } else { 107389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org max_change_ms = kDelayMaxChangeMsPerS * 108389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org (frame_timestamp - prev_frame_timestamp_) / 90000; 109b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 110389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (max_change_ms <= 0) { 111389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // Any changes less than 1 ms are truncated and 112389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // will be postponed. Negative change will be due 113389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // to reordering and should be ignored. 114389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return; 115b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 116389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org delay_diff_ms = std::max(delay_diff_ms, -max_change_ms); 117389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org delay_diff_ms = std::min(delay_diff_ms, max_change_ms); 118b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 119389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_ = current_delay_ms_ + static_cast<int32_t>(delay_diff_ms); 120389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 121389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org prev_frame_timestamp_ = frame_timestamp; 122389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org} 1232725aa054b6bf4444749de13f3d1f01513301f5amikhal@webrtc.org 124389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgvoid VCMTiming::UpdateCurrentDelay(int64_t render_time_ms, 125389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t actual_decode_time_ms) { 126389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 127389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org uint32_t target_delay_ms = TargetDelayInternal(); 128389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t delayed_ms = actual_decode_time_ms - 129389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org (render_time_ms - MaxDecodeTimeMs() - render_delay_ms_); 130389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (delayed_ms < 0) { 131389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return; 132389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 133389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (current_delay_ms_ + delayed_ms <= target_delay_ms) { 134389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_ += static_cast<uint32_t>(delayed_ms); 135389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } else { 136389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org current_delay_ms_ = target_delay_ms; 137389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 138b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 139b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 140389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgint32_t VCMTiming::StopDecodeTimer(uint32_t time_stamp, 141389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t start_time_ms, 142389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t now_ms) { 143389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 144389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int32_t time_diff_ms = codec_timer_.StopTimer(start_time_ms, now_ms); 1458edcccef11eabb0dd98a061c9d640b2b7743609estefan@webrtc.org assert(time_diff_ms >= 0); 146ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org last_decode_ms_ = time_diff_ms; 147389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return 0; 148b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 149b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 150389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgvoid VCMTiming::IncomingTimestamp(uint32_t time_stamp, int64_t now_ms) { 151389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 1528edcccef11eabb0dd98a061c9d640b2b7743609estefan@webrtc.org ts_extrapolator_->Update(now_ms, time_stamp); 153b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 154b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 155389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgint64_t VCMTiming::RenderTimeMs(uint32_t frame_timestamp, int64_t now_ms) 156389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const { 157389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 158389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const int64_t render_time_ms = RenderTimeMsInternal(frame_timestamp, now_ms); 159389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return render_time_ms; 160b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 161b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 162389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgint64_t VCMTiming::RenderTimeMsInternal(uint32_t frame_timestamp, 163389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t now_ms) const { 164389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int64_t estimated_complete_time_ms = 165389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org ts_extrapolator_->ExtrapolateLocalTime(frame_timestamp); 166389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (estimated_complete_time_ms == -1) { 167389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org estimated_complete_time_ms = now_ms; 168389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 1692725aa054b6bf4444749de13f3d1f01513301f5amikhal@webrtc.org 170e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org // Make sure that we have at least the playout delay. 171e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org uint32_t actual_delay = std::max(current_delay_ms_, min_playout_delay_ms_); 172389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return estimated_complete_time_ms + actual_delay; 173b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 174b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 175389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org// Must be called from inside a critical section. 176389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgint32_t VCMTiming::MaxDecodeTimeMs(FrameType frame_type /*= kVideoFrameDelta*/) 177389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const { 178389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const int32_t decode_time_ms = codec_timer_.RequiredDecodeTimeMs(frame_type); 1798edcccef11eabb0dd98a061c9d640b2b7743609estefan@webrtc.org assert(decode_time_ms >= 0); 180389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return decode_time_ms; 181b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 182b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 183389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orguint32_t VCMTiming::MaxWaitingTime(int64_t render_time_ms, int64_t now_ms) 184389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const { 185389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 186b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 187389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const int64_t max_wait_time_ms = render_time_ms - now_ms - 188389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org MaxDecodeTimeMs() - render_delay_ms_; 189b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 190389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (max_wait_time_ms < 0) { 191389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return 0; 192389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 193389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return static_cast<uint32_t>(max_wait_time_ms); 194b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 195b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 196389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orgbool VCMTiming::EnoughTimeToDecode(uint32_t available_processing_time_ms) 197389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org const { 198389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 199389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org int32_t max_decode_time_ms = MaxDecodeTimeMs(); 200389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org if (max_decode_time_ms < 0) { 201389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // Haven't decoded any frames yet, try decoding one to get an estimate 202389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // of the decode time. 203389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return true; 204389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } else if (max_decode_time_ms == 0) { 205389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // Decode time is less than 1, set to 1 for now since 206389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org // we don't have any better precision. Count ticks later? 207389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org max_decode_time_ms = 1; 208389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org } 209389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return static_cast<int32_t>(available_processing_time_ms) - 210389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org max_decode_time_ms > 0; 211b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 212b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 213389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orguint32_t VCMTiming::TargetVideoDelay() const { 214389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org CriticalSectionScoped cs(crit_sect_); 215389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org return TargetDelayInternal(); 216b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 217b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 218389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.orguint32_t VCMTiming::TargetDelayInternal() const { 219e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org return std::max(min_playout_delay_ms_, 220e4775746d3e4d88591ed1acce4c82bd6b0754e8amikhal@webrtc.org jitter_delay_ms_ + MaxDecodeTimeMs() + render_delay_ms_); 221b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 222b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 223ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.orgvoid VCMTiming::GetTimings(int* decode_ms, 224ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* max_decode_ms, 225ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* current_delay_ms, 226ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* target_delay_ms, 227ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* jitter_buffer_ms, 228ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* min_playout_delay_ms, 229ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org int* render_delay_ms) const { 230ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org CriticalSectionScoped cs(crit_sect_); 231ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *decode_ms = last_decode_ms_; 232ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *max_decode_ms = MaxDecodeTimeMs(); 233ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *current_delay_ms = current_delay_ms_; 234ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *target_delay_ms = TargetDelayInternal(); 235ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *jitter_buffer_ms = jitter_delay_ms_; 236ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *min_playout_delay_ms = min_playout_delay_ms_; 237ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org *render_delay_ms = render_delay_ms_; 238ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org} 239ecfef1930d59e5b7dc14e71b1ac3ed892980d151fischman@webrtc.org 240389bb404a8c8f40baff45720ed16682d3b63982emikhal@webrtc.org} // namespace webrtc 241