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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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 |
11 #include "webrtc/video/receive_statistics_proxy.h" | 11 #include "webrtc/video/receive_statistics_proxy.h" |
12 | 12 |
13 #include <algorithm> | |
14 #include <cmath> | 13 #include <cmath> |
15 #include <utility> | |
16 | 14 |
17 #include "webrtc/base/checks.h" | 15 #include "webrtc/base/checks.h" |
18 #include "webrtc/base/logging.h" | 16 #include "webrtc/base/logging.h" |
19 #include "webrtc/modules/video_coding/include/video_codec_interface.h" | 17 #include "webrtc/modules/video_coding/include/video_codec_interface.h" |
20 #include "webrtc/system_wrappers/include/clock.h" | 18 #include "webrtc/system_wrappers/include/clock.h" |
21 #include "webrtc/system_wrappers/include/field_trial.h" | 19 #include "webrtc/system_wrappers/include/field_trial.h" |
22 #include "webrtc/system_wrappers/include/metrics.h" | 20 #include "webrtc/system_wrappers/include/metrics.h" |
23 | 21 |
24 namespace webrtc { | 22 namespace webrtc { |
25 namespace { | 23 namespace { |
26 // Periodic time interval for processing samples for |freq_offset_counter_|. | 24 // Periodic time interval for processing samples for |freq_offset_counter_|. |
27 const int64_t kFreqOffsetProcessIntervalMs = 40000; | 25 const int64_t kFreqOffsetProcessIntervalMs = 40000; |
28 | 26 |
29 // Configuration for bad call detection. | 27 // Configuration for bad call detection. |
30 const int kBadCallMinRequiredSamples = 10; | 28 const int kBadCallMinRequiredSamples = 10; |
31 const int kMinSampleLengthMs = 990; | 29 const int kMinSampleLengthMs = 990; |
32 const int kNumMeasurements = 10; | 30 const int kNumMeasurements = 10; |
33 const int kNumMeasurementsVariance = kNumMeasurements * 1.5; | 31 const int kNumMeasurementsVariance = kNumMeasurements * 1.5; |
34 const float kBadFraction = 0.8f; | 32 const float kBadFraction = 0.8f; |
35 // For fps: | 33 // For fps: |
36 // Low means low enough to be bad, high means high enough to be good | 34 // Low means low enough to be bad, high means high enough to be good |
37 const int kLowFpsThreshold = 12; | 35 const int kLowFpsThreshold = 12; |
38 const int kHighFpsThreshold = 14; | 36 const int kHighFpsThreshold = 14; |
39 // For qp and fps variance: | 37 // For qp and fps variance: |
40 // Low means low enough to be good, high means high enough to be bad | 38 // Low means low enough to be good, high means high enough to be bad |
41 const int kLowQpThresholdVp8 = 60; | 39 const int kLowQpThresholdVp8 = 60; |
42 const int kHighQpThresholdVp8 = 70; | 40 const int kHighQpThresholdVp8 = 70; |
43 const int kLowVarianceThreshold = 1; | 41 const int kLowVarianceThreshold = 1; |
44 const int kHighVarianceThreshold = 2; | 42 const int kHighVarianceThreshold = 2; |
45 | |
46 // How large window we use to calculate the framerate/bitrate. | |
47 const int kRateStatisticsWindowSizeMs = 1000; | |
48 } // namespace | 43 } // namespace |
49 | 44 |
50 ReceiveStatisticsProxy::ReceiveStatisticsProxy( | 45 ReceiveStatisticsProxy::ReceiveStatisticsProxy( |
51 const VideoReceiveStream::Config* config, | 46 const VideoReceiveStream::Config* config, |
52 Clock* clock) | 47 Clock* clock) |
53 : clock_(clock), | 48 : clock_(clock), |
54 config_(*config), | 49 config_(*config), |
55 start_ms_(clock->TimeInMilliseconds()), | 50 start_ms_(clock->TimeInMilliseconds()), |
56 last_sample_time_(clock->TimeInMilliseconds()), | 51 last_sample_time_(clock->TimeInMilliseconds()), |
57 fps_threshold_(kLowFpsThreshold, | 52 fps_threshold_(kLowFpsThreshold, |
58 kHighFpsThreshold, | 53 kHighFpsThreshold, |
59 kBadFraction, | 54 kBadFraction, |
60 kNumMeasurements), | 55 kNumMeasurements), |
61 qp_threshold_(kLowQpThresholdVp8, | 56 qp_threshold_(kLowQpThresholdVp8, |
62 kHighQpThresholdVp8, | 57 kHighQpThresholdVp8, |
63 kBadFraction, | 58 kBadFraction, |
64 kNumMeasurements), | 59 kNumMeasurements), |
65 variance_threshold_(kLowVarianceThreshold, | 60 variance_threshold_(kLowVarianceThreshold, |
66 kHighVarianceThreshold, | 61 kHighVarianceThreshold, |
67 kBadFraction, | 62 kBadFraction, |
68 kNumMeasurementsVariance), | 63 kNumMeasurementsVariance), |
69 num_bad_states_(0), | 64 num_bad_states_(0), |
70 num_certain_states_(0), | 65 num_certain_states_(0), |
71 // 1000ms window, scale 1000 for ms to s. | 66 // 1000ms window, scale 1000 for ms to s. |
72 decode_fps_estimator_(1000, 1000), | 67 decode_fps_estimator_(1000, 1000), |
73 renders_fps_estimator_(1000, 1000), | 68 renders_fps_estimator_(1000, 1000), |
74 render_fps_tracker_(100, 10u), | 69 render_fps_tracker_(100, 10u), |
75 render_pixel_tracker_(100, 10u), | 70 render_pixel_tracker_(100, 10u), |
76 freq_offset_counter_(clock, nullptr, kFreqOffsetProcessIntervalMs), | 71 freq_offset_counter_(clock, nullptr, kFreqOffsetProcessIntervalMs), |
77 first_report_block_time_ms_(-1), | 72 first_report_block_time_ms_(-1) { |
78 avg_rtt_ms_(0), | |
79 frame_window_accumulated_bytes_(0) { | |
80 stats_.ssrc = config_.rtp.remote_ssrc; | 73 stats_.ssrc = config_.rtp.remote_ssrc; |
81 for (auto it : config_.rtp.rtx) | 74 for (auto it : config_.rtp.rtx) |
82 rtx_stats_[it.second.ssrc] = StreamDataCounters(); | 75 rtx_stats_[it.second.ssrc] = StreamDataCounters(); |
83 } | 76 } |
84 | 77 |
85 ReceiveStatisticsProxy::~ReceiveStatisticsProxy() { | 78 ReceiveStatisticsProxy::~ReceiveStatisticsProxy() { |
86 UpdateHistograms(); | 79 UpdateHistograms(); |
87 } | 80 } |
88 | 81 |
89 void ReceiveStatisticsProxy::UpdateHistograms() { | 82 void ReceiveStatisticsProxy::UpdateHistograms() { |
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121 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.AVSyncOffsetInMs", sync_offset_ms); | 114 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.AVSyncOffsetInMs", sync_offset_ms); |
122 } | 115 } |
123 AggregatedStats freq_offset_stats = freq_offset_counter_.GetStats(); | 116 AggregatedStats freq_offset_stats = freq_offset_counter_.GetStats(); |
124 if (freq_offset_stats.num_samples > 0) { | 117 if (freq_offset_stats.num_samples > 0) { |
125 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.RtpToNtpFreqOffsetInKhz", | 118 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.RtpToNtpFreqOffsetInKhz", |
126 freq_offset_stats.average); | 119 freq_offset_stats.average); |
127 LOG(LS_INFO) << "WebRTC.Video.RtpToNtpFreqOffsetInKhz, " | 120 LOG(LS_INFO) << "WebRTC.Video.RtpToNtpFreqOffsetInKhz, " |
128 << freq_offset_stats.ToString(); | 121 << freq_offset_stats.ToString(); |
129 } | 122 } |
130 | 123 |
131 if (stats_.frame_counts.key_frames > 0 || | |
132 stats_.frame_counts.delta_frames > 0) { | |
133 float num_key_frames = stats_.frame_counts.key_frames; | |
134 float num_total_frames = | |
135 stats_.frame_counts.key_frames + stats_.frame_counts.delta_frames; | |
136 int key_frames_permille = | |
137 (num_key_frames * 1000.0f / num_total_frames + 0.5f); | |
138 RTC_HISTOGRAM_COUNTS_1000("WebRTC.Video.KeyFramesReceivedInPermille", | |
139 key_frames_permille); | |
140 } | |
141 | |
142 int qp = qp_counters_.vp8.Avg(kMinRequiredSamples); | 124 int qp = qp_counters_.vp8.Avg(kMinRequiredSamples); |
143 if (qp != -1) | 125 if (qp != -1) |
144 RTC_HISTOGRAM_COUNTS_200("WebRTC.Video.Decoded.Vp8.Qp", qp); | 126 RTC_HISTOGRAM_COUNTS_200("WebRTC.Video.Decoded.Vp8.Qp", qp); |
145 | 127 |
146 // TODO(asapersson): DecoderTiming() is call periodically (each 1000ms) and | 128 // TODO(asapersson): DecoderTiming() is call periodically (each 1000ms) and |
147 // not per frame. Change decode time to include every frame. | 129 // not per frame. Change decode time to include every frame. |
148 const int kMinRequiredDecodeSamples = 5; | 130 const int kMinRequiredDecodeSamples = 5; |
149 int decode_ms = decode_time_counter_.Avg(kMinRequiredDecodeSamples); | 131 int decode_ms = decode_time_counter_.Avg(kMinRequiredDecodeSamples); |
150 if (decode_ms != -1) | 132 if (decode_ms != -1) |
151 RTC_HISTOGRAM_COUNTS_1000("WebRTC.Video.DecodeTimeInMs", decode_ms); | 133 RTC_HISTOGRAM_COUNTS_1000("WebRTC.Video.DecodeTimeInMs", decode_ms); |
152 | 134 |
153 int jb_delay_ms = jitter_buffer_delay_counter_.Avg(kMinRequiredDecodeSamples); | 135 if (field_trial::FindFullName("WebRTC-NewVideoJitterBuffer") != |
154 if (jb_delay_ms != -1) { | 136 "Enabled") { |
155 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.JitterBufferDelayInMs", | 137 int jb_delay_ms = |
156 jb_delay_ms); | 138 jitter_buffer_delay_counter_.Avg(kMinRequiredDecodeSamples); |
| 139 if (jb_delay_ms != -1) { |
| 140 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.JitterBufferDelayInMs", |
| 141 jb_delay_ms); |
| 142 } |
157 } | 143 } |
158 | |
159 int target_delay_ms = target_delay_counter_.Avg(kMinRequiredDecodeSamples); | 144 int target_delay_ms = target_delay_counter_.Avg(kMinRequiredDecodeSamples); |
160 if (target_delay_ms != -1) { | 145 if (target_delay_ms != -1) { |
161 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.TargetDelayInMs", target_delay_ms); | 146 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.TargetDelayInMs", target_delay_ms); |
162 } | 147 } |
163 int current_delay_ms = current_delay_counter_.Avg(kMinRequiredDecodeSamples); | 148 int current_delay_ms = current_delay_counter_.Avg(kMinRequiredDecodeSamples); |
164 if (current_delay_ms != -1) { | 149 if (current_delay_ms != -1) { |
165 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.CurrentDelayInMs", | 150 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.CurrentDelayInMs", |
166 current_delay_ms); | 151 current_delay_ms); |
167 } | 152 } |
168 int delay_ms = delay_counter_.Avg(kMinRequiredDecodeSamples); | 153 int delay_ms = delay_counter_.Avg(kMinRequiredDecodeSamples); |
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305 qp_sample_.Reset(); | 290 qp_sample_.Reset(); |
306 | 291 |
307 if (fps_threshold_.IsHigh() || variance_threshold_.IsHigh() || | 292 if (fps_threshold_.IsHigh() || variance_threshold_.IsHigh() || |
308 qp_threshold_.IsHigh()) { | 293 qp_threshold_.IsHigh()) { |
309 if (any_bad) | 294 if (any_bad) |
310 ++num_bad_states_; | 295 ++num_bad_states_; |
311 ++num_certain_states_; | 296 ++num_certain_states_; |
312 } | 297 } |
313 } | 298 } |
314 | 299 |
315 void ReceiveStatisticsProxy::UpdateFrameAndBitrate(int64_t now_ms) const { | |
316 int64_t old_frames_ms = now_ms - kRateStatisticsWindowSizeMs; | |
317 while (!frame_window_.empty() && | |
318 frame_window_.begin()->first < old_frames_ms) { | |
319 frame_window_accumulated_bytes_ -= frame_window_.begin()->second; | |
320 frame_window_.erase(frame_window_.begin()); | |
321 } | |
322 | |
323 size_t framerate = | |
324 (frame_window_.size() * 1000 + 500) / kRateStatisticsWindowSizeMs; | |
325 size_t bitrate_bps = | |
326 frame_window_accumulated_bytes_ * 8000 / kRateStatisticsWindowSizeMs; | |
327 stats_.network_frame_rate = static_cast<int>(framerate); | |
328 stats_.total_bitrate_bps = static_cast<int>(bitrate_bps); | |
329 } | |
330 | |
331 VideoReceiveStream::Stats ReceiveStatisticsProxy::GetStats() const { | 300 VideoReceiveStream::Stats ReceiveStatisticsProxy::GetStats() const { |
332 rtc::CritScope lock(&crit_); | 301 rtc::CritScope lock(&crit_); |
333 UpdateFrameAndBitrate(clock_->TimeInMilliseconds()); | |
334 return stats_; | 302 return stats_; |
335 } | 303 } |
336 | 304 |
337 void ReceiveStatisticsProxy::OnIncomingPayloadType(int payload_type) { | 305 void ReceiveStatisticsProxy::OnIncomingPayloadType(int payload_type) { |
338 rtc::CritScope lock(&crit_); | 306 rtc::CritScope lock(&crit_); |
339 stats_.current_payload_type = payload_type; | 307 stats_.current_payload_type = payload_type; |
340 } | 308 } |
341 | 309 |
342 void ReceiveStatisticsProxy::OnDecoderImplementationName( | 310 void ReceiveStatisticsProxy::OnDecoderImplementationName( |
343 const char* implementation_name) { | 311 const char* implementation_name) { |
344 rtc::CritScope lock(&crit_); | 312 rtc::CritScope lock(&crit_); |
345 stats_.decoder_implementation_name = implementation_name; | 313 stats_.decoder_implementation_name = implementation_name; |
346 } | 314 } |
347 void ReceiveStatisticsProxy::OnIncomingRate(unsigned int framerate, | 315 void ReceiveStatisticsProxy::OnIncomingRate(unsigned int framerate, |
348 unsigned int bitrate_bps) { | 316 unsigned int bitrate_bps) { |
349 rtc::CritScope lock(&crit_); | 317 rtc::CritScope lock(&crit_); |
350 if (stats_.rtp_stats.first_packet_time_ms != -1) | 318 if (stats_.rtp_stats.first_packet_time_ms != -1) |
351 QualitySample(); | 319 QualitySample(); |
| 320 stats_.network_frame_rate = framerate; |
| 321 stats_.total_bitrate_bps = bitrate_bps; |
352 } | 322 } |
353 | 323 |
354 void ReceiveStatisticsProxy::OnFrameBufferTimingsUpdated( | 324 void ReceiveStatisticsProxy::OnDecoderTiming(int decode_ms, |
355 int decode_ms, | 325 int max_decode_ms, |
356 int max_decode_ms, | 326 int current_delay_ms, |
357 int current_delay_ms, | 327 int target_delay_ms, |
358 int target_delay_ms, | 328 int jitter_buffer_ms, |
359 int jitter_buffer_ms, | 329 int min_playout_delay_ms, |
360 int min_playout_delay_ms, | 330 int render_delay_ms, |
361 int render_delay_ms) { | 331 int64_t rtt_ms) { |
362 rtc::CritScope lock(&crit_); | 332 rtc::CritScope lock(&crit_); |
363 stats_.decode_ms = decode_ms; | 333 stats_.decode_ms = decode_ms; |
364 stats_.max_decode_ms = max_decode_ms; | 334 stats_.max_decode_ms = max_decode_ms; |
365 stats_.current_delay_ms = current_delay_ms; | 335 stats_.current_delay_ms = current_delay_ms; |
366 stats_.target_delay_ms = target_delay_ms; | 336 stats_.target_delay_ms = target_delay_ms; |
367 stats_.jitter_buffer_ms = jitter_buffer_ms; | 337 stats_.jitter_buffer_ms = jitter_buffer_ms; |
368 stats_.min_playout_delay_ms = min_playout_delay_ms; | 338 stats_.min_playout_delay_ms = min_playout_delay_ms; |
369 stats_.render_delay_ms = render_delay_ms; | 339 stats_.render_delay_ms = render_delay_ms; |
370 decode_time_counter_.Add(decode_ms); | 340 decode_time_counter_.Add(decode_ms); |
371 jitter_buffer_delay_counter_.Add(jitter_buffer_ms); | 341 jitter_buffer_delay_counter_.Add(jitter_buffer_ms); |
372 target_delay_counter_.Add(target_delay_ms); | 342 target_delay_counter_.Add(target_delay_ms); |
373 current_delay_counter_.Add(current_delay_ms); | 343 current_delay_counter_.Add(current_delay_ms); |
374 // Network delay (rtt/2) + target_delay_ms (jitter delay + decode time + | 344 // Network delay (rtt/2) + target_delay_ms (jitter delay + decode time + |
375 // render delay). | 345 // render delay). |
376 delay_counter_.Add(target_delay_ms + avg_rtt_ms_ / 2); | 346 delay_counter_.Add(target_delay_ms + rtt_ms / 2); |
377 } | 347 } |
378 | 348 |
379 void ReceiveStatisticsProxy::RtcpPacketTypesCounterUpdated( | 349 void ReceiveStatisticsProxy::RtcpPacketTypesCounterUpdated( |
380 uint32_t ssrc, | 350 uint32_t ssrc, |
381 const RtcpPacketTypeCounter& packet_counter) { | 351 const RtcpPacketTypeCounter& packet_counter) { |
382 rtc::CritScope lock(&crit_); | 352 rtc::CritScope lock(&crit_); |
383 if (stats_.ssrc != ssrc) | 353 if (stats_.ssrc != ssrc) |
384 return; | 354 return; |
385 stats_.rtcp_packet_type_counts = packet_counter; | 355 stats_.rtcp_packet_type_counts = packet_counter; |
386 } | 356 } |
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471 if (estimated_freq_khz < kMaxFreqKhz && estimated_freq_khz > 0.0) | 441 if (estimated_freq_khz < kMaxFreqKhz && estimated_freq_khz > 0.0) |
472 offset_khz = static_cast<int>(std::fabs(estimated_freq_khz - 90.0) + 0.5); | 442 offset_khz = static_cast<int>(std::fabs(estimated_freq_khz - 90.0) + 0.5); |
473 | 443 |
474 freq_offset_counter_.Add(offset_khz); | 444 freq_offset_counter_.Add(offset_khz); |
475 } | 445 } |
476 | 446 |
477 void ReceiveStatisticsProxy::OnReceiveRatesUpdated(uint32_t bitRate, | 447 void ReceiveStatisticsProxy::OnReceiveRatesUpdated(uint32_t bitRate, |
478 uint32_t frameRate) { | 448 uint32_t frameRate) { |
479 } | 449 } |
480 | 450 |
481 void ReceiveStatisticsProxy::OnCompleteFrame(bool is_keyframe, | |
482 size_t size_bytes) { | |
483 rtc::CritScope lock(&crit_); | |
484 if (is_keyframe) | |
485 ++stats_.frame_counts.key_frames; | |
486 else | |
487 ++stats_.frame_counts.delta_frames; | |
488 | |
489 int64_t now_ms = clock_->TimeInMilliseconds(); | |
490 frame_window_accumulated_bytes_ += size_bytes; | |
491 frame_window_.insert(std::make_pair(now_ms, size_bytes)); | |
492 UpdateFrameAndBitrate(now_ms); | |
493 } | |
494 | |
495 void ReceiveStatisticsProxy::OnFrameCountsUpdated( | 451 void ReceiveStatisticsProxy::OnFrameCountsUpdated( |
496 const FrameCounts& frame_counts) { | 452 const FrameCounts& frame_counts) { |
497 rtc::CritScope lock(&crit_); | 453 rtc::CritScope lock(&crit_); |
498 stats_.frame_counts = frame_counts; | 454 stats_.frame_counts = frame_counts; |
499 } | 455 } |
500 | 456 |
501 void ReceiveStatisticsProxy::OnDiscardedPacketsUpdated(int discarded_packets) { | 457 void ReceiveStatisticsProxy::OnDiscardedPacketsUpdated(int discarded_packets) { |
502 rtc::CritScope lock(&crit_); | 458 rtc::CritScope lock(&crit_); |
503 stats_.discarded_packets = discarded_packets; | 459 stats_.discarded_packets = discarded_packets; |
504 } | 460 } |
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526 if (num_samples < min_required_samples || num_samples == 0) | 482 if (num_samples < min_required_samples || num_samples == 0) |
527 return -1; | 483 return -1; |
528 return static_cast<int>(sum / num_samples); | 484 return static_cast<int>(sum / num_samples); |
529 } | 485 } |
530 | 486 |
531 void ReceiveStatisticsProxy::SampleCounter::Reset() { | 487 void ReceiveStatisticsProxy::SampleCounter::Reset() { |
532 num_samples = 0; | 488 num_samples = 0; |
533 sum = 0; | 489 sum = 0; |
534 } | 490 } |
535 | 491 |
536 void ReceiveStatisticsProxy::OnRttUpdate(int64_t avg_rtt_ms, | |
537 int64_t max_rtt_ms) { | |
538 rtc::CritScope lock(&crit_); | |
539 avg_rtt_ms_ = avg_rtt_ms; | |
540 } | |
541 | |
542 } // namespace webrtc | 492 } // namespace webrtc |
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