fixed VP8 simulcast to not decode non-selected streams

webrtc/video/video_quality_test.cc

Index: webrtc/video/video_quality_test.cc
diff --git a/webrtc/video/video_quality_test.cc b/webrtc/video/video_quality_test.cc
index affadc0a765dad1217d0d2acb694f21e3a057166..dc636b0aebe9486060e7c31ba2e875cda2f5287f 100644
--- a/webrtc/video/video_quality_test.cc
+++ b/webrtc/video/video_quality_test.cc
@@ -1425,21 +1425,26 @@ void VideoQualityTest::RunWithAnalyzer(const Params& params) {
   call_config.bitrate_config = params.call.call_bitrate_config;
   CreateCalls(call_config, call_config);
 
-  test::LayerFilteringTransport send_transport(
-      params_.pipe, sender_call_.get(), kPayloadTypeVP8, kPayloadTypeVP9,
-      params_.video.selected_tl, params_.ss.selected_sl);
-  test::DirectTransport recv_transport(params_.pipe, receiver_call_.get());
+  VideoStream& selected_stream = params_.ss.streams[params_.ss.selected_stream];
 
   std::string graph_title = params_.analyzer.graph_title;
   if (graph_title.empty())
     graph_title = VideoQualityTest::GenerateGraphTitle();
 
-  // In the case of different resolutions, the functions calculating PSNR and
-  // SSIM return -1.0, instead of a positive value as usual. VideoAnalyzer
-  // aborts if the average psnr/ssim are below the given threshold, which is
-  // 0.0 by default. Setting the thresholds to -1.1 prevents the unnecessary
-  // abort.
-  VideoStream& selected_stream = params_.ss.streams[params_.ss.selected_stream];
+  std::set<uint32_t> excluded_ssrcs;
+  for (size_t i = 0; i < params_.ss.streams.size(); i++) {
+    if (i != params_.ss.selected_stream) {
+      excluded_ssrcs.insert(kVideoSendSsrcs[i]);
+      excluded_ssrcs.insert(kSendRtxSsrcs[i]);
+    }
+  }
+
+  test::LayerFilteringTransport send_transport(
+      params_.pipe, sender_call_.get(), kPayloadTypeVP8, kPayloadTypeVP9,
+      params_.video.selected_tl, params_.ss.selected_sl,
+      excluded_ssrcs);
+  test::DirectTransport recv_transport(params_.pipe, receiver_call_.get());
+
 
   bool is_quick_test_enabled = field_trial::IsEnabled("WebRTC-QuickPerfTest");
   VideoAnalyzer analyzer(
@@ -1571,7 +1576,8 @@ void VideoQualityTest::RunWithRenderers(const Params& params) {
   // calls.
   test::LayerFilteringTransport transport(
       params.pipe, call.get(), kPayloadTypeVP8, kPayloadTypeVP9,
-      params.video.selected_tl, params_.ss.selected_sl);
+      params.video.selected_tl, params_.ss.selected_sl,
+      std::set<uint32_t>());
   // TODO(ivica): Use two calls to be able to merge with RunWithAnalyzer or at
   // least share as much code as possible. That way this test would also match
   // the full stack tests better.
@@ -1604,8 +1610,7 @@ void VideoQualityTest::RunWithRenderers(const Params& params) {
     if (params_.audio.enabled && params_.audio.sync_video)
       video_receive_configs_[stream_id].sync_group = kSyncGroup;
 
-    if (params_.screenshare.enabled)
-      SetupScreenshareOrSVC();
+    SetupScreenshareOrSVC();
 
     video_send_stream_ = call->CreateVideoSendStream(
         video_send_config_.Copy(), video_encoder_config_.Copy());