Added FullStack performance test for screensharing with VP9

webrtc/video/screenshare_loopback.cc

 /*
  *  Copyright (c) 2015 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 114 matching lines @@
     "trials are separated by \"/\"");
 }  // namespace flags
 
 class ScreenshareLoopback : public test::Loopback {
  public:
   explicit ScreenshareLoopback(const Config& config) : Loopback(config) {
     vp8_settings_ = VideoEncoder::GetDefaultVp8Settings();
     vp8_settings_.denoisingOn = false;
     vp8_settings_.frameDroppingOn = false;
     vp8_settings_.numberOfTemporalLayers = 2;
+
+    vp9_settings_ = VideoEncoder::GetDefaultVp9Settings();
+    vp9_settings_.denoisingOn = false;
+    vp9_settings_.frameDroppingOn = false;
+    vp9_settings_.numberOfTemporalLayers = 2;
   }
   virtual ~ScreenshareLoopback() {}
 
  protected:
   VideoEncoderConfig CreateEncoderConfig() override {
     VideoEncoderConfig encoder_config(test::Loopback::CreateEncoderConfig());
     VideoStream* stream = &encoder_config.streams[0];
     encoder_config.content_type = VideoEncoderConfig::ContentType::kScreen;
     encoder_config.min_transmit_bitrate_bps = flags::MinTransmitBitrate();
-    encoder_config.encoder_specific_settings = &vp8_settings_;
+    if (config_.codec == "VP8") {
+      encoder_config.encoder_specific_settings = &vp8_settings_;
+    } else if (config_.codec == "VP9") {
+      encoder_config.encoder_specific_settings = &vp9_settings_;
+    } else {
+      RTC_NOTREACHED() << "Codec not supported!";
+      abort();
+    }
     stream->temporal_layer_thresholds_bps.clear();
     stream->target_bitrate_bps =
         static_cast<int>(config_.start_bitrate_kbps) * 1000;
     stream->temporal_layer_thresholds_bps.push_back(stream->target_bitrate_bps);
     return encoder_config;
   }
 
   test::VideoCapturer* CreateCapturer(VideoSendStream* send_stream) override {
     std::vector<std::string> slides;
     slides.push_back(test::ResourcePath("web_screenshot_1850_1110", "yuv"));
@@ skipping 16 matching lines @@
             Clock::GetRealTimeClock(), slides, kWidth, kHeight, flags::Width(),
             flags::Height(), flags::ScrollDuration() * 1000, kPauseDurationMs);
 
     test::FrameGeneratorCapturer* capturer(new test::FrameGeneratorCapturer(
         clock_, send_stream->Input(), frame_generator, flags::Fps()));
     EXPECT_TRUE(capturer->Init());
     return capturer;
   }
 
   VideoCodecVP8 vp8_settings_;
+  VideoCodecVP9 vp9_settings_;
 };
 
 void Loopback() {
   test::Loopback::Config config{flags::Width(),
                                 flags::Height(),
                                 flags::Fps(),
                                 flags::MinBitrate(),
                                 flags::StartBitrate(),
                                 flags::MaxBitrate(),
                                 flags::MinTransmitBitrate(),
@@ skipping 11 matching lines @@
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   ::testing::InitGoogleTest(&argc, argv);
   google::ParseCommandLineFlags(&argc, &argv, true);
   webrtc::test::InitFieldTrialsFromString(
       webrtc::flags::FLAGS_force_fieldtrials);
   webrtc::test::RunTest(webrtc::Loopback);
   return 0;
 }