Add QP stats for sent video streams to StatsReport.

webrtc/video/send_statistics_proxy.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 108 matching lines @@
   }
   int delay_ms = delay_counter_.Avg(kMinRequiredSamples);
   if (delay_ms != -1)
     RTC_HISTOGRAM_COUNTS_100000("WebRTC.Video.SendSideDelayInMs", delay_ms);
 
   int max_delay_ms = max_delay_counter_.Avg(kMinRequiredSamples);
   if (max_delay_ms != -1) {
     RTC_HISTOGRAM_COUNTS_100000(
         "WebRTC.Video.SendSideDelayMaxInMs", max_delay_ms);
   }
+  for (const auto& it : qp_counters_) {
+    int qp = it.second.vp8.Avg(kMinRequiredSamples);
+    if (qp != -1)
+      RTC_HISTOGRAM_COUNTS_200("WebRTC.Video.Encoded.Vp8.Qp", qp);
+  }
 }
 
 void SendStatisticsProxy::OnOutgoingRate(uint32_t framerate, uint32_t bitrate) {
   rtc::CritScope lock(&crit_);
   stats_.encode_frame_rate = framerate;
   stats_.media_bitrate_bps = bitrate;
 }
 
 void SendStatisticsProxy::CpuOveruseMetricsUpdated(
     const CpuOveruseMetrics& metrics) {
@@ skipping 97 matching lines @@
     }
   }
   if (encoded_image.adapt_reason_.bw_resolutions_disabled != -1) {
     bool bw_limited = encoded_image.adapt_reason_.bw_resolutions_disabled > 0;
     bw_limited_frame_counter_.Add(bw_limited);
     if (bw_limited) {
       bw_resolutions_disabled_counter_.Add(
          encoded_image.adapt_reason_.bw_resolutions_disabled);
     }
   }
+  if (encoded_image.qp_ != -1 && rtp_video_header != nullptr) {
+    if (rtp_video_header->codec == kRtpVideoVp8) {
+      qp_counters_[ssrc].vp8.Add(encoded_image.qp_);
+      qp_filters_[ssrc].qp.Apply(1.0f, encoded_image.qp_);
+      stats->qp = round(qp_filters_[ssrc].qp.filtered());
+    }
+  }
 
   // TODO(asapersson): This is incorrect if simulcast layers are encoded on
   // different threads and there is no guarantee that one frame of all layers
   // are encoded before the next start.
   if (last_sent_frame_timestamp_ > 0 &&
       encoded_image._timeStamp != last_sent_frame_timestamp_) {
     sent_frame_rate_tracker_.AddSamples(1);
     sent_width_counter_.Add(max_sent_width_per_timestamp_);
     sent_height_counter_.Add(max_sent_height_per_timestamp_);
     max_sent_width_per_timestamp_ = 0;
@@ skipping 119 matching lines @@
 }
 
 int SendStatisticsProxy::BoolSampleCounter::Fraction(
     int min_required_samples, float multiplier) const {
   if (num_samples < min_required_samples || num_samples == 0)
     return -1;
   return static_cast<int>((sum * multiplier / num_samples) + 0.5f);
 }
 
 }  // namespace webrtc