1 files changed, 20 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/codecs/vp9/svc_config_unittest.cc b/third_party/libwebrtc/modules/video_coding/codecs/vp9/svc_config_unittest.cc
index 1b1abe0f6d..2515b1ce4b 100644
--- a/third_party/libwebrtc/modules/video_coding/codecs/vp9/svc_config_unittest.cc
+++ b/third_party/libwebrtc/modules/video_coding/codecs/vp9/svc_config_unittest.cc
@@ -13,6 +13,7 @@
 #include <cstddef>
 #include <vector>
 
+#include "api/video_codecs/video_encoder.h"
 #include "modules/video_coding/codecs/vp9/include/vp9_globals.h"
 #include "test/gmock.h"
 #include "test/gtest.h"
@@ -65,6 +66,25 @@ TEST(SvcConfig, NumSpatialLayersWithScalabilityMode) {
   EXPECT_EQ(codec.GetScalabilityMode(), ScalabilityMode::kL3T3_KEY);
 }
 
+TEST(SvcConfig, UpdatesInterLayerPredModeBasedOnScalabilityMode) {
+  VideoCodec codec;
+  codec.codecType = kVideoCodecVP9;
+  codec.width = 1280;
+  codec.height = 720;
+  codec.SetScalabilityMode(ScalabilityMode::kL3T3_KEY);
+
+  std::vector<SpatialLayer> spatial_layers = GetVp9SvcConfig(codec);
+  EXPECT_EQ(codec.VP9()->interLayerPred, InterLayerPredMode::kOnKeyPic);
+
+  codec.SetScalabilityMode(ScalabilityMode::kL3T3);
+  spatial_layers = GetVp9SvcConfig(codec);
+  EXPECT_EQ(codec.VP9()->interLayerPred, InterLayerPredMode::kOn);
+
+  codec.SetScalabilityMode(ScalabilityMode::kS3T3);
+  spatial_layers = GetVp9SvcConfig(codec);
+  EXPECT_EQ(codec.VP9()->interLayerPred, InterLayerPredMode::kOff);
+}
+
 TEST(SvcConfig, NumSpatialLayersLimitedWithScalabilityMode) {
   VideoCodec codec;
   codec.codecType = kVideoCodecVP9;