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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 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/modules/video_coding/frame_buffer2.h" | 11 #include "webrtc/modules/video_coding/frame_buffer2.h" |
12 | 12 |
13 #include <algorithm> | 13 #include <algorithm> |
14 #include <cstring> | 14 #include <cstring> |
15 #include <queue> | 15 #include <queue> |
16 | 16 |
17 #include "webrtc/base/checks.h" | 17 #include "webrtc/base/checks.h" |
18 #include "webrtc/base/logging.h" | 18 #include "webrtc/base/logging.h" |
19 #include "webrtc/modules/video_coding/include/video_coding_defines.h" | |
20 #include "webrtc/modules/video_coding/jitter_estimator.h" | 19 #include "webrtc/modules/video_coding/jitter_estimator.h" |
21 #include "webrtc/modules/video_coding/timing.h" | 20 #include "webrtc/modules/video_coding/timing.h" |
22 #include "webrtc/system_wrappers/include/clock.h" | 21 #include "webrtc/system_wrappers/include/clock.h" |
23 #include "webrtc/system_wrappers/include/metrics.h" | 22 #include "webrtc/system_wrappers/include/metrics.h" |
24 | 23 |
25 namespace webrtc { | 24 namespace webrtc { |
26 namespace video_coding { | 25 namespace video_coding { |
27 | 26 |
28 namespace { | 27 namespace { |
29 // Max number of frames the buffer will hold. | 28 // Max number of frames the buffer will hold. |
30 constexpr int kMaxFramesBuffered = 600; | 29 constexpr int kMaxFramesBuffered = 600; |
31 | 30 |
32 // Max number of decoded frame info that will be saved. | 31 // Max number of decoded frame info that will be saved. |
33 constexpr int kMaxFramesHistory = 50; | 32 constexpr int kMaxFramesHistory = 50; |
34 } // namespace | 33 } // namespace |
35 | 34 |
36 FrameBuffer::FrameBuffer(Clock* clock, | 35 FrameBuffer::FrameBuffer(Clock* clock, |
37 VCMJitterEstimator* jitter_estimator, | 36 VCMJitterEstimator* jitter_estimator, |
38 VCMTiming* timing, | 37 VCMTiming* timing) |
39 VCMReceiveStatisticsCallback* stats_callback) | |
40 : clock_(clock), | 38 : clock_(clock), |
41 new_countinuous_frame_event_(false, false), | 39 new_countinuous_frame_event_(false, false), |
42 jitter_estimator_(jitter_estimator), | 40 jitter_estimator_(jitter_estimator), |
43 timing_(timing), | 41 timing_(timing), |
44 inter_frame_delay_(clock_->TimeInMilliseconds()), | 42 inter_frame_delay_(clock_->TimeInMilliseconds()), |
45 last_decoded_frame_it_(frames_.end()), | 43 last_decoded_frame_it_(frames_.end()), |
46 last_continuous_frame_it_(frames_.end()), | 44 last_continuous_frame_it_(frames_.end()), |
47 num_frames_history_(0), | 45 num_frames_history_(0), |
48 num_frames_buffered_(0), | 46 num_frames_buffered_(0), |
49 stopped_(false), | 47 stopped_(false), |
50 protection_mode_(kProtectionNack), | 48 protection_mode_(kProtectionNack) {} |
51 stats_callback_(stats_callback) {} | |
52 | 49 |
53 FrameBuffer::~FrameBuffer() {} | 50 FrameBuffer::~FrameBuffer() { |
| 51 UpdateHistograms(); |
| 52 } |
54 | 53 |
55 FrameBuffer::ReturnReason FrameBuffer::NextFrame( | 54 FrameBuffer::ReturnReason FrameBuffer::NextFrame( |
56 int64_t max_wait_time_ms, | 55 int64_t max_wait_time_ms, |
57 std::unique_ptr<FrameObject>* frame_out) { | 56 std::unique_ptr<FrameObject>* frame_out) { |
58 int64_t latest_return_time = clock_->TimeInMilliseconds() + max_wait_time_ms; | 57 int64_t latest_return_time = clock_->TimeInMilliseconds() + max_wait_time_ms; |
59 int64_t wait_ms = max_wait_time_ms; | 58 int64_t wait_ms = max_wait_time_ms; |
60 FrameMap::iterator next_frame_it; | 59 FrameMap::iterator next_frame_it; |
61 | 60 |
62 do { | 61 do { |
63 int64_t now_ms = clock_->TimeInMilliseconds(); | 62 int64_t now_ms = clock_->TimeInMilliseconds(); |
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156 void FrameBuffer::Stop() { | 155 void FrameBuffer::Stop() { |
157 rtc::CritScope lock(&crit_); | 156 rtc::CritScope lock(&crit_); |
158 stopped_ = true; | 157 stopped_ = true; |
159 new_countinuous_frame_event_.Set(); | 158 new_countinuous_frame_event_.Set(); |
160 } | 159 } |
161 | 160 |
162 int FrameBuffer::InsertFrame(std::unique_ptr<FrameObject> frame) { | 161 int FrameBuffer::InsertFrame(std::unique_ptr<FrameObject> frame) { |
163 rtc::CritScope lock(&crit_); | 162 rtc::CritScope lock(&crit_); |
164 RTC_DCHECK(frame); | 163 RTC_DCHECK(frame); |
165 | 164 |
166 if (stats_callback_) | 165 ++num_total_frames_; |
167 stats_callback_->OnCompleteFrame(frame->num_references == 0, frame->size()); | 166 if (frame->num_references == 0) |
| 167 ++num_key_frames_; |
168 | 168 |
169 FrameKey key(frame->picture_id, frame->spatial_layer); | 169 FrameKey key(frame->picture_id, frame->spatial_layer); |
170 int last_continuous_picture_id = | 170 int last_continuous_picture_id = |
171 last_continuous_frame_it_ == frames_.end() | 171 last_continuous_frame_it_ == frames_.end() |
172 ? -1 | 172 ? -1 |
173 : last_continuous_frame_it_->first.picture_id; | 173 : last_continuous_frame_it_->first.picture_id; |
174 | 174 |
175 if (num_frames_buffered_ >= kMaxFramesBuffered) { | 175 if (num_frames_buffered_ >= kMaxFramesBuffered) { |
176 LOG(LS_WARNING) << "Frame with (picture_id:spatial_id) (" << key.picture_id | 176 LOG(LS_WARNING) << "Frame with (picture_id:spatial_id) (" << key.picture_id |
177 << ":" << static_cast<int>(key.spatial_layer) | 177 << ":" << static_cast<int>(key.spatial_layer) |
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358 ref_info->second.num_missing_decodable); | 358 ref_info->second.num_missing_decodable); |
359 } | 359 } |
360 | 360 |
361 RTC_DCHECK_LE(info->second.num_missing_continuous, | 361 RTC_DCHECK_LE(info->second.num_missing_continuous, |
362 info->second.num_missing_decodable); | 362 info->second.num_missing_decodable); |
363 | 363 |
364 return true; | 364 return true; |
365 } | 365 } |
366 | 366 |
367 void FrameBuffer::UpdateJitterDelay() { | 367 void FrameBuffer::UpdateJitterDelay() { |
368 if (!stats_callback_) | 368 int unused; |
369 return; | 369 int delay; |
| 370 timing_->GetTimings(&unused, &unused, &unused, &unused, &delay, &unused, |
| 371 &unused); |
370 | 372 |
371 int decode_ms; | 373 accumulated_delay_ += delay; |
372 int max_decode_ms; | 374 ++accumulated_delay_samples_; |
373 int current_delay_ms; | 375 } |
374 int target_delay_ms; | 376 |
375 int jitter_buffer_ms; | 377 void FrameBuffer::UpdateHistograms() const { |
376 int min_playout_delay_ms; | 378 rtc::CritScope lock(&crit_); |
377 int render_delay_ms; | 379 if (num_total_frames_ > 0) { |
378 if (timing_->GetTimings(&decode_ms, &max_decode_ms, ¤t_delay_ms, | 380 int key_frames_permille = (static_cast<float>(num_key_frames_) * 1000.0f / |
379 &target_delay_ms, &jitter_buffer_ms, | 381 static_cast<float>(num_total_frames_) + |
380 &min_playout_delay_ms, &render_delay_ms)) { | 382 0.5f); |
381 stats_callback_->OnFrameBufferTimingsUpdated( | 383 RTC_HISTOGRAM_COUNTS_1000("WebRTC.Video.KeyFramesReceivedInPermille", |
382 decode_ms, max_decode_ms, current_delay_ms, target_delay_ms, | 384 key_frames_permille); |
383 jitter_buffer_ms, min_playout_delay_ms, render_delay_ms); | 385 } |
| 386 |
| 387 if (accumulated_delay_samples_ > 0) { |
| 388 RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.JitterBufferDelayInMs", |
| 389 accumulated_delay_ / accumulated_delay_samples_); |
384 } | 390 } |
385 } | 391 } |
386 | 392 |
387 } // namespace video_coding | 393 } // namespace video_coding |
388 } // namespace webrtc | 394 } // namespace webrtc |
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