Add VideoSendStream::Stats::prefered_media_bitrate_bps

webrtc/video/send_statistics_proxy_unittest.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 47 matching lines @@
     config.rtp.rtx.ssrcs.push_back(kFirstRtxSsrc);
     config.rtp.rtx.ssrcs.push_back(kSecondRtxSsrc);
     config.rtp.fec.red_payload_type = 17;
     return config;
   }
 
   void ExpectEqual(VideoSendStream::Stats one, VideoSendStream::Stats other) {
     EXPECT_EQ(one.input_frame_rate, other.input_frame_rate);
     EXPECT_EQ(one.encode_frame_rate, other.encode_frame_rate);
     EXPECT_EQ(one.media_bitrate_bps, other.media_bitrate_bps);
+    EXPECT_EQ(one.preferred_media_bitrate_bps,
+              other.preferred_media_bitrate_bps);
     EXPECT_EQ(one.suspended, other.suspended);
 
     EXPECT_EQ(one.substreams.size(), other.substreams.size());
     for (std::map<uint32_t, VideoSendStream::StreamStats>::const_iterator it =
              one.substreams.begin();
          it != one.substreams.end(); ++it) {
       std::map<uint32_t, VideoSendStream::StreamStats>::const_iterator
           corresponding_it = other.substreams.find(it->first);
       ASSERT_TRUE(corresponding_it != other.substreams.end());
       const VideoSendStream::StreamStats& a = it->second;
@@ skipping 203 matching lines @@
   const int kEncodeTimeMs = 11;
   CpuOveruseMetrics metrics;
   metrics.encode_usage_percent = 80;
   statistics_proxy_->OnEncodedFrameTimeMeasured(kEncodeTimeMs, metrics);
 
   VideoSendStream::Stats stats = statistics_proxy_->GetStats();
   EXPECT_EQ(kEncodeTimeMs, stats.avg_encode_time_ms);
   EXPECT_EQ(metrics.encode_usage_percent, stats.encode_usage_percent);
 }
 
+TEST_F(SendStatisticsProxyTest, OnEncoderReconfiguredChangePreferredBitrate) {
+  VideoSendStream::Stats stats = statistics_proxy_->GetStats();
+  EXPECT_EQ(0, stats.preferred_media_bitrate_bps);
+
+  VideoEncoderConfig config;
+  std::vector<VideoStream> streams;
+  VideoStream stream1;
+  stream1.target_bitrate_bps = 5;
+  stream1.max_bitrate_bps = 6;
+  streams.push_back(stream1);
+
+  statistics_proxy_->OnEncoderReconfigured(config, streams);
+  stats = statistics_proxy_->GetStats();
+  EXPECT_EQ(stream1.max_bitrate_bps, stats.preferred_media_bitrate_bps);
+
+  VideoStream stream2;
+  stream2.target_bitrate_bps = 10;
+  stream2.max_bitrate_bps = 20;
+  streams.push_back(stream2);
+
+  statistics_proxy_->OnEncoderReconfigured(config, streams);
+  stats = statistics_proxy_->GetStats();
+  EXPECT_EQ(stream2.max_bitrate_bps + stream1.target_bitrate_bps,
+            stats.preferred_media_bitrate_bps);
+}
+
 TEST_F(SendStatisticsProxyTest, SwitchContentTypeUpdatesHistograms) {
   const int kWidth = 640;
   const int kHeight = 480;
 
   for (int i = 0; i < kMinRequiredSamples; ++i)
     statistics_proxy_->OnIncomingFrame(kWidth, kHeight);
 
-  // No switch, stats not should be updated.
-  statistics_proxy_->SetContentType(
-      VideoEncoderConfig::ContentType::kRealtimeVideo);
+  // No switch, stats should not be updated.
+  VideoEncoderConfig config;
+  config.content_type = VideoEncoderConfig::ContentType::kRealtimeVideo;
+  std::vector<VideoStream> video_streams;
+  statistics_proxy_->OnEncoderReconfigured(config, video_streams);
   EXPECT_EQ(0, metrics::NumSamples("WebRTC.Video.InputWidthInPixels"));
 
   // Switch to screenshare, real-time stats should be updated.
-  statistics_proxy_->SetContentType(VideoEncoderConfig::ContentType::kScreen);
+  config.content_type = VideoEncoderConfig::ContentType::kScreen;
+  statistics_proxy_->OnEncoderReconfigured(config, video_streams);
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InputWidthInPixels"));
 }
 
 TEST_F(SendStatisticsProxyTest, LifetimeHistogramIsUpdated) {
   const int64_t kTimeSec = 3;
   fake_clock_.AdvanceTimeMilliseconds(kTimeSec * 1000);
   statistics_proxy_.reset();
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.SendStreamLifetimeInSeconds"));
   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.SendStreamLifetimeInSeconds",
                                   kTimeSec));
@@ skipping 216 matching lines @@
   counters.nack_packets += 1 * metrics::kMinRunTimeInSeconds;
   counters.fir_packets += 2 * metrics::kMinRunTimeInSeconds;
   counters.pli_packets += 3 * metrics::kMinRunTimeInSeconds;
   counters.unique_nack_requests += 4 * metrics::kMinRunTimeInSeconds;
   counters.nack_requests += 5 * metrics::kMinRunTimeInSeconds;
 
   proxy->RtcpPacketTypesCounterUpdated(kFirstSsrc, counters);
   proxy->RtcpPacketTypesCounterUpdated(kSecondSsrc, counters);
 
   // Changing content type causes histograms to be reported.
-  statistics_proxy_->SetContentType(VideoEncoderConfig::ContentType::kScreen);
+  VideoEncoderConfig config;
+  config.content_type = VideoEncoderConfig::ContentType::kScreen;
+  std::vector<VideoStream> video_streams;
+  statistics_proxy_->OnEncoderReconfigured(config, video_streams);
 
   EXPECT_EQ(1,
             metrics::NumSamples("WebRTC.Video.NackPacketsReceivedPerMinute"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.FirPacketsReceivedPerMinute"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.PliPacketsReceivedPerMinute"));
   EXPECT_EQ(1, metrics::NumSamples(
                    "WebRTC.Video.UniqueNackRequestsReceivedInPercent"));
 
   const int kRate = 60 * 2;  // Packets per minute with two streams.
 
@@ skipping 74 matching lines @@
 
   rtx_counters.transmitted = counters.transmitted;
 
   fake_clock_.AdvanceTimeMilliseconds(1000 * metrics::kMinRunTimeInSeconds);
   proxy->DataCountersUpdated(counters, kFirstSsrc);
   proxy->DataCountersUpdated(counters, kSecondSsrc);
   proxy->DataCountersUpdated(rtx_counters, kFirstRtxSsrc);
   proxy->DataCountersUpdated(rtx_counters, kSecondRtxSsrc);
 
   // Changing content type causes histograms to be reported.
-  statistics_proxy_->SetContentType(VideoEncoderConfig::ContentType::kScreen);
+  VideoEncoderConfig config;
+  config.content_type = VideoEncoderConfig::ContentType::kScreen;
+  std::vector<VideoStream> video_streams;
+  statistics_proxy_->OnEncoderReconfigured(config, video_streams);
 
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.BitrateSentInKbps"));
   EXPECT_EQ(1,
             metrics::NumEvents(
                 "WebRTC.Video.BitrateSentInKbps",
                 static_cast<int>((counters.transmitted.TotalBytes() * 4 * 8) /
                                  metrics::kMinRunTimeInSeconds / 1000)));
 
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.MediaBitrateSentInKbps"));
   EXPECT_EQ(1, metrics::NumEvents(
@@ skipping 91 matching lines @@
 
   EXPECT_EQ(
       1, metrics::NumSamples("WebRTC.Video.Screenshare.FecBitrateSentInKbps"));
   EXPECT_EQ(1, metrics::NumEvents(
                    "WebRTC.Video.Screenshare.FecBitrateSentInKbps",
                    static_cast<int>((rtx_counters.fec.TotalBytes() * 2 * 8) /
                                     metrics::kMinRunTimeInSeconds / 1000)));
 }
 
 }  // namespace webrtc