Add support of displaying video during the PC level test

Bug: webrtc:10138
Change-Id: Ic74b58bc4f1be1793e0dd1a0c286f8d4200fe6f2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151901
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29111}

api/test/peerconnection_quality_test_fixture.h

@@ -197,6 +197,8 @@ class PeerConnectionE2EQualityTestFixture {
     // output files will be appended with indexes. The produced files contains
     // what was rendered for this video stream on receiver side.
     absl::optional<std::string> output_dump_file_name;
+    // If true will display input and output video on the user's screen.
+    bool show_on_screen = false;
   };
 
   // Contains properties for audio in the call.

test/pc/e2e/BUILD.gn

@@ -193,6 +193,8 @@ if (rtc_include_tests) {
       ":quality_analyzing_video_decoder",
       ":quality_analyzing_video_encoder",
       ":simulcast_dummy_buffer_helper",
+      "../..:test_renderer",
+      "../../../api:peer_connection_quality_test_fixture_api",
       "../../../api:stats_observer_interface",
       "../../../api:video_quality_analyzer_api",
       "../../../api/video:video_frame",

test/pc/e2e/analyzer/video/video_quality_analyzer_injection_helper.cc

@@ -16,6 +16,7 @@
 #include "test/pc/e2e/analyzer/video/quality_analyzing_video_decoder.h"
 #include "test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.h"
 #include "test/pc/e2e/analyzer/video/simulcast_dummy_buffer_helper.h"
+#include "test/video_renderer.h"
 
 namespace webrtc {
 namespace webrtc_pc_e2e {
@@ -58,8 +59,8 @@ class AnalyzingFrameGenerator final : public test::FrameGenerator {
     uint16_t frame_id = analyzer_->OnFrameCaptured(stream_label_, *frame);
     frame->set_id(frame_id);
 
-    for (auto& listener : sinks_) {
-      listener->OnFrame(*frame);
+    for (auto& sink : sinks_) {
+      sink->OnFrame(*frame);
     }
     return frame;
   }
@@ -94,8 +95,8 @@ class AnalyzingVideoSink final : public rtc::VideoSinkInterface<VideoFrame> {
       return;
     }
     analyzer_->OnFrameRendered(frame);
-    for (auto& listener : sinks_) {
-      listener->OnFrame(frame);
+    for (auto& sink : sinks_) {
+      sink->OnFrame(frame);
     }
   }
 
@@ -143,25 +144,36 @@ VideoQualityAnalyzerInjectionHelper::WrapVideoDecoderFactory(
 
 std::unique_ptr<test::FrameGenerator>
 VideoQualityAnalyzerInjectionHelper::WrapFrameGenerator(
-    std::string stream_label,
+    const VideoConfig& config,
     std::unique_ptr<test::FrameGenerator> delegate,
     test::VideoFrameWriter* writer) const {
   std::vector<std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>>> sinks;
   if (writer) {
     sinks.push_back(absl::make_unique<VideoWriter>(writer));
   }
+  if (config.show_on_screen) {
+    sinks.push_back(absl::WrapUnique(
+        test::VideoRenderer::Create((*config.stream_label + "-capture").c_str(),
+                                    config.width, config.height)));
+  }
   return absl::make_unique<AnalyzingFrameGenerator>(
-      std::move(stream_label), std::move(delegate), analyzer_.get(),
+      std::move(*config.stream_label), std::move(delegate), analyzer_.get(),
       std::move(sinks));
 }
 
 std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>>
 VideoQualityAnalyzerInjectionHelper::CreateVideoSink(
+    const VideoConfig& config,
     test::VideoFrameWriter* writer) const {
   std::vector<std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>>> sinks;
   if (writer) {
     sinks.push_back(absl::make_unique<VideoWriter>(writer));
   }
+  if (config.show_on_screen) {
+    sinks.push_back(absl::WrapUnique(
+        test::VideoRenderer::Create((*config.stream_label + "-render").c_str(),
+                                    config.width, config.height)));
+  }
   return absl::make_unique<AnalyzingVideoSink>(analyzer_.get(),
                                                std::move(sinks));
 }

test/pc/e2e/analyzer/video/video_quality_analyzer_injection_helper.h

@@ -15,6 +15,7 @@
 #include <memory>
 #include <string>
 
+#include "api/test/peerconnection_quality_test_fixture.h"
 #include "api/test/stats_observer_interface.h"
 #include "api/test/video_quality_analyzer_interface.h"
 #include "api/video/video_frame.h"
@@ -33,6 +34,8 @@ namespace webrtc_pc_e2e {
 // VideoQualityAnalyzerInterface into PeerConnection pipeline.
 class VideoQualityAnalyzerInjectionHelper : public StatsObserverInterface {
  public:
+  using VideoConfig = PeerConnectionE2EQualityTestFixture::VideoConfig;
+
   VideoQualityAnalyzerInjectionHelper(
       std::unique_ptr<VideoQualityAnalyzerInterface> analyzer,
       EncodedImageDataInjector* injector,
@@ -55,13 +58,14 @@ class VideoQualityAnalyzerInjectionHelper : public StatsObserverInterface {
   // captured frames. If |writer| in not nullptr, will dump captured frames
   // with provided writer.
   std::unique_ptr<test::FrameGenerator> WrapFrameGenerator(
-      std::string stream_label,
+      const VideoConfig& config,
       std::unique_ptr<test::FrameGenerator> delegate,
       test::VideoFrameWriter* writer) const;
   // Creates sink, that will allow video quality analyzer to get access to the
   // rendered frames. If |writer| in not nullptr, will dump rendered frames
   // with provided writer.
   std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>> CreateVideoSink(
+      const VideoConfig& config,
       test::VideoFrameWriter* writer) const;
 
   void Start(std::string test_case_name, int max_threads_count);

test/pc/e2e/peer_connection_quality_test.cc

@@ -590,7 +590,8 @@ void PeerConnectionE2EQualityTest::OnTrackCallback(
   // track->kind() is kVideoKind.
   auto* video_track = static_cast<VideoTrackInterface*>(track.get());
   std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>> video_sink =
-      video_quality_analyzer_injection_helper_->CreateVideoSink(writer);
+      video_quality_analyzer_injection_helper_->CreateVideoSink(*video_config,
+                                                                writer);
   video_track->AddOrUpdateSink(video_sink.get(), rtc::VideoSinkWants());
   output_video_sinks_.push_back(std::move(video_sink));
 }
@@ -680,8 +681,7 @@ PeerConnectionE2EQualityTest::MaybeAddVideo(TestPeer* peer) {
         MaybeCreateVideoWriter(video_config.input_dump_file_name, video_config);
     frame_generator =
         video_quality_analyzer_injection_helper_->WrapFrameGenerator(
-            video_config.stream_label.value(), std::move(frame_generator),
-            writer);
+            video_config, std::move(frame_generator), writer);
 
     // Setup FrameGenerator into peer connection.
     auto capturer = absl::make_unique<test::FrameGeneratorCapturer>(