| /* | 
 |  *  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. | 
 |  */ | 
 |  | 
 | #include "webrtc/video/send_statistics_proxy.h" | 
 |  | 
 | #include <map> | 
 | #include <memory> | 
 | #include <string> | 
 | #include <vector> | 
 |  | 
 | #include "testing/gtest/include/gtest/gtest.h" | 
 | #include "webrtc/system_wrappers/include/metrics.h" | 
 | #include "webrtc/system_wrappers/include/metrics_default.h" | 
 |  | 
 | namespace webrtc { | 
 | namespace { | 
 | const uint32_t kFirstSsrc = 17; | 
 | const uint32_t kSecondSsrc = 42; | 
 | const uint32_t kFirstRtxSsrc = 18; | 
 | const uint32_t kSecondRtxSsrc = 43; | 
 |  | 
 | const int kMinRequiredSamples = 200; | 
 | const int kQpIdx0 = 21; | 
 | const int kQpIdx1 = 39; | 
 | }  // namespace | 
 |  | 
 | class SendStatisticsProxyTest : public ::testing::Test { | 
 |  public: | 
 |   SendStatisticsProxyTest() | 
 |       : fake_clock_(1234), config_(GetTestConfig()), avg_delay_ms_(0), | 
 |         max_delay_ms_(0) {} | 
 |   virtual ~SendStatisticsProxyTest() {} | 
 |  | 
 |  protected: | 
 |   virtual void SetUp() { | 
 |     metrics::Reset(); | 
 |     statistics_proxy_.reset(new SendStatisticsProxy( | 
 |         &fake_clock_, GetTestConfig(), | 
 |         VideoEncoderConfig::ContentType::kRealtimeVideo)); | 
 |     expected_ = VideoSendStream::Stats(); | 
 |   } | 
 |  | 
 |   VideoSendStream::Config GetTestConfig() { | 
 |     VideoSendStream::Config config(nullptr); | 
 |     config.rtp.ssrcs.push_back(kFirstSsrc); | 
 |     config.rtp.ssrcs.push_back(kSecondSsrc); | 
 |     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.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; | 
 |       const VideoSendStream::StreamStats& b = corresponding_it->second; | 
 |  | 
 |       EXPECT_EQ(a.frame_counts.key_frames, b.frame_counts.key_frames); | 
 |       EXPECT_EQ(a.frame_counts.delta_frames, b.frame_counts.delta_frames); | 
 |       EXPECT_EQ(a.total_bitrate_bps, b.total_bitrate_bps); | 
 |       EXPECT_EQ(a.avg_delay_ms, b.avg_delay_ms); | 
 |       EXPECT_EQ(a.max_delay_ms, b.max_delay_ms); | 
 |  | 
 |       EXPECT_EQ(a.rtp_stats.transmitted.payload_bytes, | 
 |                 b.rtp_stats.transmitted.payload_bytes); | 
 |       EXPECT_EQ(a.rtp_stats.transmitted.header_bytes, | 
 |                 b.rtp_stats.transmitted.header_bytes); | 
 |       EXPECT_EQ(a.rtp_stats.transmitted.padding_bytes, | 
 |                 b.rtp_stats.transmitted.padding_bytes); | 
 |       EXPECT_EQ(a.rtp_stats.transmitted.packets, | 
 |                 b.rtp_stats.transmitted.packets); | 
 |       EXPECT_EQ(a.rtp_stats.retransmitted.packets, | 
 |                 b.rtp_stats.retransmitted.packets); | 
 |       EXPECT_EQ(a.rtp_stats.fec.packets, b.rtp_stats.fec.packets); | 
 |  | 
 |       EXPECT_EQ(a.rtcp_stats.fraction_lost, b.rtcp_stats.fraction_lost); | 
 |       EXPECT_EQ(a.rtcp_stats.cumulative_lost, b.rtcp_stats.cumulative_lost); | 
 |       EXPECT_EQ(a.rtcp_stats.extended_max_sequence_number, | 
 |                 b.rtcp_stats.extended_max_sequence_number); | 
 |       EXPECT_EQ(a.rtcp_stats.jitter, b.rtcp_stats.jitter); | 
 |     } | 
 |   } | 
 |  | 
 |   SimulatedClock fake_clock_; | 
 |   std::unique_ptr<SendStatisticsProxy> statistics_proxy_; | 
 |   VideoSendStream::Config config_; | 
 |   int avg_delay_ms_; | 
 |   int max_delay_ms_; | 
 |   VideoSendStream::Stats expected_; | 
 |   typedef std::map<uint32_t, VideoSendStream::StreamStats>::const_iterator | 
 |       StreamIterator; | 
 | }; | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, RtcpStatistics) { | 
 |   RtcpStatisticsCallback* callback = statistics_proxy_.get(); | 
 |   for (const auto& ssrc : config_.rtp.ssrcs) { | 
 |     VideoSendStream::StreamStats& ssrc_stats = expected_.substreams[ssrc]; | 
 |  | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     uint32_t offset = ssrc * sizeof(RtcpStatistics); | 
 |     ssrc_stats.rtcp_stats.cumulative_lost = offset; | 
 |     ssrc_stats.rtcp_stats.extended_max_sequence_number = offset + 1; | 
 |     ssrc_stats.rtcp_stats.fraction_lost = offset + 2; | 
 |     ssrc_stats.rtcp_stats.jitter = offset + 3; | 
 |     callback->StatisticsUpdated(ssrc_stats.rtcp_stats, ssrc); | 
 |   } | 
 |   for (const auto& ssrc : config_.rtp.rtx.ssrcs) { | 
 |     VideoSendStream::StreamStats& ssrc_stats = expected_.substreams[ssrc]; | 
 |  | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     uint32_t offset = ssrc * sizeof(RtcpStatistics); | 
 |     ssrc_stats.rtcp_stats.cumulative_lost = offset; | 
 |     ssrc_stats.rtcp_stats.extended_max_sequence_number = offset + 1; | 
 |     ssrc_stats.rtcp_stats.fraction_lost = offset + 2; | 
 |     ssrc_stats.rtcp_stats.jitter = offset + 3; | 
 |     callback->StatisticsUpdated(ssrc_stats.rtcp_stats, ssrc); | 
 |   } | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   ExpectEqual(expected_, stats); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, EncodedBitrateAndFramerate) { | 
 |   int media_bitrate_bps = 500; | 
 |   int encode_fps = 29; | 
 |  | 
 |   statistics_proxy_->OnEncoderStatsUpdate(encode_fps, media_bitrate_bps, | 
 |                                           "encoder name"); | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(media_bitrate_bps, stats.media_bitrate_bps); | 
 |   EXPECT_EQ(encode_fps, stats.encode_frame_rate); | 
 |   EXPECT_EQ("encoder name", stats.encoder_implementation_name); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, Suspended) { | 
 |   // Verify that the value is false by default. | 
 |   EXPECT_FALSE(statistics_proxy_->GetStats().suspended); | 
 |  | 
 |   // Verify that we can set it to true. | 
 |   statistics_proxy_->OnSuspendChange(true); | 
 |   EXPECT_TRUE(statistics_proxy_->GetStats().suspended); | 
 |  | 
 |   // Verify that we can set it back to false again. | 
 |   statistics_proxy_->OnSuspendChange(false); | 
 |   EXPECT_FALSE(statistics_proxy_->GetStats().suspended); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, FrameCounts) { | 
 |   FrameCountObserver* observer = statistics_proxy_.get(); | 
 |   for (const auto& ssrc : config_.rtp.ssrcs) { | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     VideoSendStream::StreamStats& stats = expected_.substreams[ssrc]; | 
 |     uint32_t offset = ssrc * sizeof(VideoSendStream::StreamStats); | 
 |     FrameCounts frame_counts; | 
 |     frame_counts.key_frames = offset; | 
 |     frame_counts.delta_frames = offset + 1; | 
 |     stats.frame_counts = frame_counts; | 
 |     observer->FrameCountUpdated(frame_counts, ssrc); | 
 |   } | 
 |   for (const auto& ssrc : config_.rtp.rtx.ssrcs) { | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     VideoSendStream::StreamStats& stats = expected_.substreams[ssrc]; | 
 |     uint32_t offset = ssrc * sizeof(VideoSendStream::StreamStats); | 
 |     FrameCounts frame_counts; | 
 |     frame_counts.key_frames = offset; | 
 |     frame_counts.delta_frames = offset + 1; | 
 |     stats.frame_counts = frame_counts; | 
 |     observer->FrameCountUpdated(frame_counts, ssrc); | 
 |   } | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   ExpectEqual(expected_, stats); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, DataCounters) { | 
 |   StreamDataCountersCallback* callback = statistics_proxy_.get(); | 
 |   for (const auto& ssrc : config_.rtp.ssrcs) { | 
 |     StreamDataCounters& counters = expected_.substreams[ssrc].rtp_stats; | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     size_t offset = ssrc * sizeof(StreamDataCounters); | 
 |     uint32_t offset_uint32 = static_cast<uint32_t>(offset); | 
 |     counters.transmitted.payload_bytes = offset; | 
 |     counters.transmitted.header_bytes = offset + 1; | 
 |     counters.fec.packets = offset_uint32 + 2; | 
 |     counters.transmitted.padding_bytes = offset + 3; | 
 |     counters.retransmitted.packets = offset_uint32 + 4; | 
 |     counters.transmitted.packets = offset_uint32 + 5; | 
 |     callback->DataCountersUpdated(counters, ssrc); | 
 |   } | 
 |   for (const auto& ssrc : config_.rtp.rtx.ssrcs) { | 
 |     StreamDataCounters& counters = expected_.substreams[ssrc].rtp_stats; | 
 |     // Add statistics with some arbitrary, but unique, numbers. | 
 |     size_t offset = ssrc * sizeof(StreamDataCounters); | 
 |     uint32_t offset_uint32 = static_cast<uint32_t>(offset); | 
 |     counters.transmitted.payload_bytes = offset; | 
 |     counters.transmitted.header_bytes = offset + 1; | 
 |     counters.fec.packets = offset_uint32 + 2; | 
 |     counters.transmitted.padding_bytes = offset + 3; | 
 |     counters.retransmitted.packets = offset_uint32 + 4; | 
 |     counters.transmitted.packets = offset_uint32 + 5; | 
 |     callback->DataCountersUpdated(counters, ssrc); | 
 |   } | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   ExpectEqual(expected_, stats); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, Bitrate) { | 
 |   BitrateStatisticsObserver* observer = statistics_proxy_.get(); | 
 |   for (const auto& ssrc : config_.rtp.ssrcs) { | 
 |     BitrateStatistics total; | 
 |     BitrateStatistics retransmit; | 
 |     // Use ssrc as bitrate_bps to get a unique value for each stream. | 
 |     total.bitrate_bps = ssrc; | 
 |     retransmit.bitrate_bps = ssrc + 1; | 
 |     observer->Notify(total, retransmit, ssrc); | 
 |     expected_.substreams[ssrc].total_bitrate_bps = total.bitrate_bps; | 
 |     expected_.substreams[ssrc].retransmit_bitrate_bps = retransmit.bitrate_bps; | 
 |   } | 
 |   for (const auto& ssrc : config_.rtp.rtx.ssrcs) { | 
 |     BitrateStatistics total; | 
 |     BitrateStatistics retransmit; | 
 |     // Use ssrc as bitrate_bps to get a unique value for each stream. | 
 |     total.bitrate_bps = ssrc; | 
 |     retransmit.bitrate_bps = ssrc + 1; | 
 |     observer->Notify(total, retransmit, ssrc); | 
 |     expected_.substreams[ssrc].total_bitrate_bps = total.bitrate_bps; | 
 |     expected_.substreams[ssrc].retransmit_bitrate_bps = retransmit.bitrate_bps; | 
 |   } | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   ExpectEqual(expected_, stats); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, SendSideDelay) { | 
 |   SendSideDelayObserver* observer = statistics_proxy_.get(); | 
 |   for (const auto& ssrc : config_.rtp.ssrcs) { | 
 |     // Use ssrc as avg_delay_ms and max_delay_ms to get a unique value for each | 
 |     // stream. | 
 |     int avg_delay_ms = ssrc; | 
 |     int max_delay_ms = ssrc + 1; | 
 |     observer->SendSideDelayUpdated(avg_delay_ms, max_delay_ms, ssrc); | 
 |     expected_.substreams[ssrc].avg_delay_ms = avg_delay_ms; | 
 |     expected_.substreams[ssrc].max_delay_ms = max_delay_ms; | 
 |   } | 
 |   for (const auto& ssrc : config_.rtp.rtx.ssrcs) { | 
 |     // Use ssrc as avg_delay_ms and max_delay_ms to get a unique value for each | 
 |     // stream. | 
 |     int avg_delay_ms = ssrc; | 
 |     int max_delay_ms = ssrc + 1; | 
 |     observer->SendSideDelayUpdated(avg_delay_ms, max_delay_ms, ssrc); | 
 |     expected_.substreams[ssrc].avg_delay_ms = avg_delay_ms; | 
 |     expected_.substreams[ssrc].max_delay_ms = max_delay_ms; | 
 |   } | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   ExpectEqual(expected_, stats); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, OnEncodedFrameTimeMeasured) { | 
 |   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, 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); | 
 |   EXPECT_EQ(0, metrics::NumSamples("WebRTC.Video.InputWidthInPixels")); | 
 |  | 
 |   // Switch to screenshare, real-time stats should be updated. | 
 |   statistics_proxy_->SetContentType(VideoEncoderConfig::ContentType::kScreen); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InputWidthInPixels")); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, VerifyQpHistogramStats_Vp8) { | 
 |   EncodedImage encoded_image; | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP8; | 
 |  | 
 |   for (int i = 0; i < kMinRequiredSamples; ++i) { | 
 |     codec_info.codecSpecific.VP8.simulcastIdx = 0; | 
 |     encoded_image.qp_ = kQpIdx0; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |     codec_info.codecSpecific.VP8.simulcastIdx = 1; | 
 |     encoded_image.qp_ = kQpIdx1; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   } | 
 |   statistics_proxy_.reset(); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp8.S0")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp8.S0", kQpIdx0)); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp8.S1")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp8.S1", kQpIdx1)); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, VerifyQpHistogramStats_Vp8OneSsrc) { | 
 |   VideoSendStream::Config config(nullptr); | 
 |   config.rtp.ssrcs.push_back(kFirstSsrc); | 
 |   statistics_proxy_.reset(new SendStatisticsProxy( | 
 |       &fake_clock_, config, VideoEncoderConfig::ContentType::kRealtimeVideo)); | 
 |  | 
 |   EncodedImage encoded_image; | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP8; | 
 |  | 
 |   for (int i = 0; i < kMinRequiredSamples; ++i) { | 
 |     codec_info.codecSpecific.VP8.simulcastIdx = 0; | 
 |     encoded_image.qp_ = kQpIdx0; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   } | 
 |   statistics_proxy_.reset(); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp8")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp8", kQpIdx0)); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, VerifyQpHistogramStats_Vp9) { | 
 |   EncodedImage encoded_image; | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP9; | 
 |   codec_info.codecSpecific.VP9.num_spatial_layers = 2; | 
 |  | 
 |   for (int i = 0; i < kMinRequiredSamples; ++i) { | 
 |     encoded_image.qp_ = kQpIdx0; | 
 |     codec_info.codecSpecific.VP9.spatial_idx = 0; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |     encoded_image.qp_ = kQpIdx1; | 
 |     codec_info.codecSpecific.VP9.spatial_idx = 1; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   } | 
 |   statistics_proxy_.reset(); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp9.S0")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp9.S0", kQpIdx0)); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp9.S1")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp9.S1", kQpIdx1)); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, VerifyQpHistogramStats_Vp9OneSpatialLayer) { | 
 |   VideoSendStream::Config config(nullptr); | 
 |   config.rtp.ssrcs.push_back(kFirstSsrc); | 
 |   statistics_proxy_.reset(new SendStatisticsProxy( | 
 |       &fake_clock_, config, VideoEncoderConfig::ContentType::kRealtimeVideo)); | 
 |  | 
 |   EncodedImage encoded_image; | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP9; | 
 |   codec_info.codecSpecific.VP9.num_spatial_layers = 1; | 
 |  | 
 |   for (int i = 0; i < kMinRequiredSamples; ++i) { | 
 |     encoded_image.qp_ = kQpIdx0; | 
 |     codec_info.codecSpecific.VP9.spatial_idx = 0; | 
 |     statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   } | 
 |   statistics_proxy_.reset(); | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.Encoded.Qp.Vp9")); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.Encoded.Qp.Vp9", kQpIdx0)); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, NoSubstreams) { | 
 |   uint32_t excluded_ssrc = | 
 |       std::max( | 
 |           *std::max_element(config_.rtp.ssrcs.begin(), config_.rtp.ssrcs.end()), | 
 |           *std::max_element(config_.rtp.rtx.ssrcs.begin(), | 
 |                             config_.rtp.rtx.ssrcs.end())) + | 
 |       1; | 
 |   // From RtcpStatisticsCallback. | 
 |   RtcpStatistics rtcp_stats; | 
 |   RtcpStatisticsCallback* rtcp_callback = statistics_proxy_.get(); | 
 |   rtcp_callback->StatisticsUpdated(rtcp_stats, excluded_ssrc); | 
 |  | 
 |   // From BitrateStatisticsObserver. | 
 |   BitrateStatistics total; | 
 |   BitrateStatistics retransmit; | 
 |   BitrateStatisticsObserver* bitrate_observer = statistics_proxy_.get(); | 
 |   bitrate_observer->Notify(total, retransmit, excluded_ssrc); | 
 |  | 
 |   // From FrameCountObserver. | 
 |   FrameCountObserver* fps_observer = statistics_proxy_.get(); | 
 |   FrameCounts frame_counts; | 
 |   frame_counts.key_frames = 1; | 
 |   fps_observer->FrameCountUpdated(frame_counts, excluded_ssrc); | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_TRUE(stats.substreams.empty()); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, EncodedResolutionTimesOut) { | 
 |   static const int kEncodedWidth = 123; | 
 |   static const int kEncodedHeight = 81; | 
 |   EncodedImage encoded_image; | 
 |   encoded_image._encodedWidth = kEncodedWidth; | 
 |   encoded_image._encodedHeight = kEncodedHeight; | 
 |  | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP8; | 
 |   codec_info.codecSpecific.VP8.simulcastIdx = 0; | 
 |  | 
 |   statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   codec_info.codecSpecific.VP8.simulcastIdx = 1; | 
 |   statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(kEncodedWidth, stats.substreams[config_.rtp.ssrcs[0]].width); | 
 |   EXPECT_EQ(kEncodedHeight, stats.substreams[config_.rtp.ssrcs[0]].height); | 
 |   EXPECT_EQ(kEncodedWidth, stats.substreams[config_.rtp.ssrcs[1]].width); | 
 |   EXPECT_EQ(kEncodedHeight, stats.substreams[config_.rtp.ssrcs[1]].height); | 
 |  | 
 |   // Forward almost to timeout, this should not have removed stats. | 
 |   fake_clock_.AdvanceTimeMilliseconds(SendStatisticsProxy::kStatsTimeoutMs - 1); | 
 |   stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(kEncodedWidth, stats.substreams[config_.rtp.ssrcs[0]].width); | 
 |   EXPECT_EQ(kEncodedHeight, stats.substreams[config_.rtp.ssrcs[0]].height); | 
 |  | 
 |   // Update the first SSRC with bogus RTCP stats to make sure that encoded | 
 |   // resolution still times out (no global timeout for all stats). | 
 |   RtcpStatistics rtcp_statistics; | 
 |   RtcpStatisticsCallback* rtcp_stats = statistics_proxy_.get(); | 
 |   rtcp_stats->StatisticsUpdated(rtcp_statistics, config_.rtp.ssrcs[0]); | 
 |  | 
 |   // Report stats for second SSRC to make sure it's not outdated along with the | 
 |   // first SSRC. | 
 |   codec_info.codecSpecific.VP8.simulcastIdx = 1; | 
 |   statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |  | 
 |   // Forward 1 ms, reach timeout, substream 0 should have no resolution | 
 |   // reported, but substream 1 should. | 
 |   fake_clock_.AdvanceTimeMilliseconds(1); | 
 |   stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[0]].width); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[0]].height); | 
 |   EXPECT_EQ(kEncodedWidth, stats.substreams[config_.rtp.ssrcs[1]].width); | 
 |   EXPECT_EQ(kEncodedHeight, stats.substreams[config_.rtp.ssrcs[1]].height); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, ClearsResolutionFromInactiveSsrcs) { | 
 |   static const int kEncodedWidth = 123; | 
 |   static const int kEncodedHeight = 81; | 
 |   EncodedImage encoded_image; | 
 |   encoded_image._encodedWidth = kEncodedWidth; | 
 |   encoded_image._encodedHeight = kEncodedHeight; | 
 |  | 
 |   CodecSpecificInfo codec_info; | 
 |   codec_info.codecType = kVideoCodecVP8; | 
 |   codec_info.codecSpecific.VP8.simulcastIdx = 0; | 
 |  | 
 |   statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |   codec_info.codecSpecific.VP8.simulcastIdx = 1; | 
 |   statistics_proxy_->OnSendEncodedImage(encoded_image, &codec_info); | 
 |  | 
 |   statistics_proxy_->OnInactiveSsrc(config_.rtp.ssrcs[1]); | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(kEncodedWidth, stats.substreams[config_.rtp.ssrcs[0]].width); | 
 |   EXPECT_EQ(kEncodedHeight, stats.substreams[config_.rtp.ssrcs[0]].height); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[1]].width); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[1]].height); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, ClearsBitratesFromInactiveSsrcs) { | 
 |   BitrateStatistics bitrate; | 
 |   bitrate.bitrate_bps = 42; | 
 |   BitrateStatisticsObserver* observer = statistics_proxy_.get(); | 
 |   observer->Notify(bitrate, bitrate, config_.rtp.ssrcs[0]); | 
 |   observer->Notify(bitrate, bitrate, config_.rtp.ssrcs[1]); | 
 |  | 
 |   statistics_proxy_->OnInactiveSsrc(config_.rtp.ssrcs[1]); | 
 |  | 
 |   VideoSendStream::Stats stats = statistics_proxy_->GetStats(); | 
 |   EXPECT_EQ(static_cast<int>(bitrate.bitrate_bps), | 
 |             stats.substreams[config_.rtp.ssrcs[0]].total_bitrate_bps); | 
 |   EXPECT_EQ(static_cast<int>(bitrate.bitrate_bps), | 
 |             stats.substreams[config_.rtp.ssrcs[0]].retransmit_bitrate_bps); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[1]].total_bitrate_bps); | 
 |   EXPECT_EQ(0, stats.substreams[config_.rtp.ssrcs[1]].retransmit_bitrate_bps); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, ResetsRtcpCountersOnContentChange) { | 
 |   RtcpPacketTypeCounterObserver* proxy = | 
 |       static_cast<RtcpPacketTypeCounterObserver*>(statistics_proxy_.get()); | 
 |   RtcpPacketTypeCounter counters; | 
 |   counters.first_packet_time_ms = fake_clock_.TimeInMilliseconds(); | 
 |   proxy->RtcpPacketTypesCounterUpdated(kFirstSsrc, counters); | 
 |   proxy->RtcpPacketTypesCounterUpdated(kSecondSsrc, counters); | 
 |  | 
 |   fake_clock_.AdvanceTimeMilliseconds(1000 * metrics::kMinRunTimeInSeconds); | 
 |  | 
 |   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); | 
 |  | 
 |   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. | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.NackPacketsReceivedPerMinute", | 
 |                                   1 * kRate)); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.FirPacketsReceivedPerMinute", | 
 |                                   2 * kRate)); | 
 |   EXPECT_EQ(1, metrics::NumEvents("WebRTC.Video.PliPacketsReceivedPerMinute", | 
 |                                   3 * kRate)); | 
 |   EXPECT_EQ( | 
 |       1, metrics::NumEvents("WebRTC.Video.UniqueNackRequestsReceivedInPercent", | 
 |                             4 * 100 / 5)); | 
 |  | 
 |   // New start time but same counter values. | 
 |   proxy->RtcpPacketTypesCounterUpdated(kFirstSsrc, counters); | 
 |   proxy->RtcpPacketTypesCounterUpdated(kSecondSsrc, counters); | 
 |  | 
 |   fake_clock_.AdvanceTimeMilliseconds(1000 * metrics::kMinRunTimeInSeconds); | 
 |  | 
 |   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); | 
 |  | 
 |   SetUp();  // Reset stats proxy also causes histograms to be reported. | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.NackPacketsReceivedPerMinute")); | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.FirPacketsReceivedPerMinute")); | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.PliPacketsReceivedPerMinute")); | 
 |   EXPECT_EQ( | 
 |       1, metrics::NumSamples( | 
 |              "WebRTC.Video.Screenshare.UniqueNackRequestsReceivedInPercent")); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumEvents( | 
 |                    "WebRTC.Video.Screenshare.NackPacketsReceivedPerMinute", | 
 |                    1 * kRate)); | 
 |   EXPECT_EQ(1, metrics::NumEvents( | 
 |                    "WebRTC.Video.Screenshare.FirPacketsReceivedPerMinute", | 
 |                    2 * kRate)); | 
 |   EXPECT_EQ(1, metrics::NumEvents( | 
 |                    "WebRTC.Video.Screenshare.PliPacketsReceivedPerMinute", | 
 |                    3 * kRate)); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.Screenshare.UniqueNackRequestsReceivedInPercent", | 
 |                 4 * 100 / 5)); | 
 | } | 
 |  | 
 | TEST_F(SendStatisticsProxyTest, ResetsRtpCountersOnContentChange) { | 
 |   StreamDataCountersCallback* proxy = | 
 |       static_cast<StreamDataCountersCallback*>(statistics_proxy_.get()); | 
 |   StreamDataCounters counters; | 
 |   StreamDataCounters rtx_counters; | 
 |   counters.first_packet_time_ms = fake_clock_.TimeInMilliseconds(); | 
 |   proxy->DataCountersUpdated(counters, kFirstSsrc); | 
 |   proxy->DataCountersUpdated(counters, kSecondSsrc); | 
 |   proxy->DataCountersUpdated(rtx_counters, kFirstRtxSsrc); | 
 |   proxy->DataCountersUpdated(rtx_counters, kSecondRtxSsrc); | 
 |  | 
 |   counters.transmitted.header_bytes = 400; | 
 |   counters.transmitted.packets = 20; | 
 |   counters.transmitted.padding_bytes = 1000; | 
 |   counters.transmitted.payload_bytes = 2000; | 
 |  | 
 |   counters.retransmitted.header_bytes = 40; | 
 |   counters.retransmitted.packets = 2; | 
 |   counters.retransmitted.padding_bytes = 100; | 
 |   counters.retransmitted.payload_bytes = 200; | 
 |  | 
 |   counters.fec = counters.retransmitted; | 
 |  | 
 |   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); | 
 |  | 
 |   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( | 
 |                    "WebRTC.Video.MediaBitrateSentInKbps", | 
 |                    static_cast<int>((counters.MediaPayloadBytes() * 2 * 8) / | 
 |                                     metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.PaddingBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.PaddingBitrateSentInKbps", | 
 |                 static_cast<int>((counters.transmitted.padding_bytes * 4 * 8) / | 
 |                                  metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumSamples("WebRTC.Video.RetransmittedBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.RetransmittedBitrateSentInKbps", | 
 |                 static_cast<int>((counters.retransmitted.TotalBytes() * 2 * 8) / | 
 |                                  metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.RtxBitrateSentInKbps")); | 
 |   EXPECT_EQ( | 
 |       1, metrics::NumEvents( | 
 |              "WebRTC.Video.RtxBitrateSentInKbps", | 
 |              static_cast<int>((rtx_counters.transmitted.TotalBytes() * 2 * 8) / | 
 |                               metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.FecBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, metrics::NumEvents( | 
 |                    "WebRTC.Video.FecBitrateSentInKbps", | 
 |                    static_cast<int>((rtx_counters.fec.TotalBytes() * 2 * 8) / | 
 |                                     metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   // New start time but same counter values. | 
 |   proxy->DataCountersUpdated(counters, kFirstSsrc); | 
 |   proxy->DataCountersUpdated(counters, kSecondSsrc); | 
 |   proxy->DataCountersUpdated(rtx_counters, kFirstRtxSsrc); | 
 |   proxy->DataCountersUpdated(rtx_counters, kSecondRtxSsrc); | 
 |  | 
 |   // Double counter values, this should result in the same counts as before but | 
 |   // with new histogram names. | 
 |   StreamDataCounters new_counters = counters; | 
 |   new_counters.Add(counters); | 
 |   StreamDataCounters new_rtx_counters = rtx_counters; | 
 |   new_rtx_counters.Add(rtx_counters); | 
 |  | 
 |   fake_clock_.AdvanceTimeMilliseconds(1000 * metrics::kMinRunTimeInSeconds); | 
 |   proxy->DataCountersUpdated(new_counters, kFirstSsrc); | 
 |   proxy->DataCountersUpdated(new_counters, kSecondSsrc); | 
 |   proxy->DataCountersUpdated(new_rtx_counters, kFirstRtxSsrc); | 
 |   proxy->DataCountersUpdated(new_rtx_counters, kSecondRtxSsrc); | 
 |  | 
 |   SetUp();  // Reset stats proxy also causes histograms to be reported. | 
 |  | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumSamples("WebRTC.Video.Screenshare.BitrateSentInKbps")); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.Screenshare.BitrateSentInKbps", | 
 |                 static_cast<int>((counters.transmitted.TotalBytes() * 4 * 8) / | 
 |                                  metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.MediaBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, metrics::NumEvents( | 
 |                    "WebRTC.Video.Screenshare.MediaBitrateSentInKbps", | 
 |                    static_cast<int>((counters.MediaPayloadBytes() * 2 * 8) / | 
 |                                     metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.PaddingBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.Screenshare.PaddingBitrateSentInKbps", | 
 |                 static_cast<int>((counters.transmitted.padding_bytes * 4 * 8) / | 
 |                                  metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ(1, metrics::NumSamples( | 
 |                    "WebRTC.Video.Screenshare.RetransmittedBitrateSentInKbps")); | 
 |   EXPECT_EQ(1, | 
 |             metrics::NumEvents( | 
 |                 "WebRTC.Video.Screenshare.RetransmittedBitrateSentInKbps", | 
 |                 static_cast<int>((counters.retransmitted.TotalBytes() * 2 * 8) / | 
 |                                  metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   EXPECT_EQ( | 
 |       1, metrics::NumSamples("WebRTC.Video.Screenshare.RtxBitrateSentInKbps")); | 
 |   EXPECT_EQ( | 
 |       1, metrics::NumEvents( | 
 |              "WebRTC.Video.Screenshare.RtxBitrateSentInKbps", | 
 |              static_cast<int>((rtx_counters.transmitted.TotalBytes() * 2 * 8) / | 
 |                               metrics::kMinRunTimeInSeconds / 1000))); | 
 |  | 
 |   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 |