diff --git a/webrtc/api/java/jni/androidmediaencoder_jni.cc b/webrtc/api/java/jni/androidmediaencoder_jni.cc
index 1530f003dc..69060f8508 100644
--- a/webrtc/api/java/jni/androidmediaencoder_jni.cc
+++ b/webrtc/api/java/jni/androidmediaencoder_jni.cc
@@ -376,15 +376,15 @@ int32_t MediaCodecVideoEncoder::InitEncode(
       // always = 127. Note that in SW, QP is that of the user-level range [0,
       // 63].
       const int kLowQpThreshold = 29;
-      const int kBadQpThreshold = 90;
+      const int kBadQpThreshold = 100;
       quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false,
                            codec_settings->startBitrate, codec_settings->width,
                            codec_settings->height,
                            codec_settings->maxFramerate);
     } else if (codecType_ == kVideoCodecH264) {
       // H264 QP is in the range [0, 51].
-      const int kLowQpThreshold = 21;
-      const int kBadQpThreshold = 33;
+      const int kLowQpThreshold = 24;
+      const int kBadQpThreshold = 39;
       quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false,
                            codec_settings->startBitrate, codec_settings->width,
                            codec_settings->height,
diff --git a/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc b/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
index 4ab939a4a7..abe58e3626 100644
--- a/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
+++ b/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
@@ -604,8 +604,8 @@ int VP8EncoderImpl::InitEncode(const VideoCodec* inst,
   // quality is good, but also low enough to not cause a flip-flop behavior
   // (e.g. going up in resolution shouldn't give so bad quality that we should
   // go back down).
-  const int kLowQpThreshold = 23;
-  const int kDisabledBadQpThreshold = 128;
+  const int kLowQpThreshold = 29;
+  const int kDisabledBadQpThreshold = 100;
   // TODO(glaznev/sprang): consider passing codec initial bitrate to quality
   // scaler to avoid starting with HD for low initial bitrates.
   quality_scaler_.Init(kLowQpThreshold, kDisabledBadQpThreshold, false, 0, 0, 0,
diff --git a/webrtc/modules/video_coding/utility/quality_scaler.cc b/webrtc/modules/video_coding/utility/quality_scaler.cc
index 42f3e287a9..0e1f1d4248 100644
--- a/webrtc/modules/video_coding/utility/quality_scaler.cc
+++ b/webrtc/modules/video_coding/utility/quality_scaler.cc
@@ -13,10 +13,10 @@ namespace webrtc {
 
 namespace {
 static const int kMinFps = 5;
-static const int kMeasureSecondsDownscale = 3;
 // Threshold constant used until first downscale (to permit fast rampup).
 static const int kMeasureSecondsFastUpscale = 2;
 static const int kMeasureSecondsUpscale = 5;
+static const int kMeasureSecondsDownscale = 5;
 static const int kFramedropPercentThreshold = 60;
 static const int kHdResolutionThreshold = 700 * 500;
 static const int kHdBitrateThresholdKbps = 500;
diff --git a/webrtc/modules/video_coding/utility/quality_scaler_unittest.cc b/webrtc/modules/video_coding/utility/quality_scaler_unittest.cc
index ecd678edb6..0f761c7d17 100644
--- a/webrtc/modules/video_coding/utility/quality_scaler_unittest.cc
+++ b/webrtc/modules/video_coding/utility/quality_scaler_unittest.cc
@@ -29,9 +29,9 @@ static const int kDisabledBadQpThreshold = 64;
 static const int kLowInitialBitrateKbps = 300;
 // These values need to be in sync with corresponding constants
 // in quality_scaler.cc
-static const int kMeasureSecondsDownscale = 3;
 static const int kMeasureSecondsFastUpscale = 2;
 static const int kMeasureSecondsUpscale = 5;
+static const int kMeasureSecondsDownscale = 5;
 static const int kMinDownscaleDimension = 140;
 }  // namespace