Change reporting of timing frames conditions in GetStats on receive side

webrtc/video/receive_statistics_proxy_unittest.cc

 /*
  *  Copyright 2016 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 290 matching lines @@
   EXPECT_STREQ(kName, statistics_proxy_->GetStats().c_name.c_str());
 }
 
 TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsNoCNameForUnknownSsrc) {
   const char* kName = "cName";
   statistics_proxy_->CNameChanged(kName, kRemoteSsrc + 1);
   EXPECT_STREQ("", statistics_proxy_->GetStats().c_name.c_str());
 }
 
 TEST_F(ReceiveStatisticsProxyTest,
-       GetTimingFrameInfoReportsLongestTimingFrame) {
+       ReportsLongestTimingFrameInfo) {
   const int64_t kShortEndToEndDelay = 10;
   const int64_t kMedEndToEndDelay = 20;
   const int64_t kLongEndToEndDelay = 100;
   const uint32_t kExpectedRtpTimestamp = 2;
   TimingFrameInfo info;
   rtc::Optional<TimingFrameInfo> result;
   info.rtp_timestamp = kExpectedRtpTimestamp - 1;
   info.capture_time_ms = 0;
   info.decode_finish_ms = kShortEndToEndDelay;
   statistics_proxy_->OnTimingFrameInfoUpdated(info);
   info.rtp_timestamp =
       kExpectedRtpTimestamp;  // this frame should be reported in the end.
   info.capture_time_ms = 0;
   info.decode_finish_ms = kLongEndToEndDelay;
   statistics_proxy_->OnTimingFrameInfoUpdated(info);
   info.rtp_timestamp = kExpectedRtpTimestamp + 1;
   info.capture_time_ms = 0;
   info.decode_finish_ms = kMedEndToEndDelay;
   statistics_proxy_->OnTimingFrameInfoUpdated(info);
-  result = statistics_proxy_->GetAndResetTimingFrameInfo();
+  result = statistics_proxy_->GetStats().timing_frame_info;
   EXPECT_TRUE(result);
   EXPECT_EQ(kExpectedRtpTimestamp, result->rtp_timestamp);
 }
 
-TEST_F(ReceiveStatisticsProxyTest, GetTimingFrameInfoTimingFramesReportedOnce) {
+TEST_F(ReceiveStatisticsProxyTest, RespectsReportingIntervalForTimingFrames) {
+  TimingFrameInfo info;
   const int64_t kShortEndToEndDelay = 10;
   const uint32_t kExpectedRtpTimestamp = 2;
-  TimingFrameInfo info;
+  const int64_t kShortDelayMs = 1000;
+  const int64_t kLongDelayMs = 10000;
   rtc::Optional<TimingFrameInfo> result;
   info.rtp_timestamp = kExpectedRtpTimestamp;
   info.capture_time_ms = 0;
   info.decode_finish_ms = kShortEndToEndDelay;
   statistics_proxy_->OnTimingFrameInfoUpdated(info);
-  result = statistics_proxy_->GetAndResetTimingFrameInfo();
+  fake_clock_.AdvanceTimeMilliseconds(kShortDelayMs);
+  result = statistics_proxy_->GetStats().timing_frame_info;
   EXPECT_TRUE(result);
   EXPECT_EQ(kExpectedRtpTimestamp, result->rtp_timestamp);
-  result = statistics_proxy_->GetAndResetTimingFrameInfo();
+  fake_clock_.AdvanceTimeMilliseconds(kLongDelayMs);
+  result = statistics_proxy_->GetStats().timing_frame_info;
   EXPECT_FALSE(result);
 }
 
 TEST_F(ReceiveStatisticsProxyTest, LifetimeHistogramIsUpdated) {
   const int64_t kTimeSec = 3;
   fake_clock_.AdvanceTimeMilliseconds(kTimeSec * 1000);
   // Histograms are updated when the statistics_proxy_ is deleted.
   statistics_proxy_.reset();
   EXPECT_EQ(1,
             metrics::NumSamples("WebRTC.Video.ReceiveStreamLifetimeInSeconds"));
@@ skipping 492 matching lines @@
     EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs"));
     EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs"));
     EXPECT_EQ(kInterFrameDelayMs,
               metrics::MinSample("WebRTC.Video.InterframeDelayInMs"));
     EXPECT_EQ(kInterFrameDelayMs,
               metrics::MinSample("WebRTC.Video.InterframeDelayMaxInMs"));
   }
 }
 
 }  // namespace webrtc