diff --git a/webrtc/media/engine/webrtcvideoengine2.cc b/webrtc/media/engine/webrtcvideoengine2.cc
index 4f3c283939..f9fccf101d 100644
--- a/webrtc/media/engine/webrtcvideoengine2.cc
+++ b/webrtc/media/engine/webrtcvideoengine2.cc
@@ -421,6 +421,7 @@ WebRtcVideoChannel2::WebRtcVideoSendStream::ConfigureVideoEncoderSettings(
     // VP9 denoising is disabled by default.
     vp9_settings.denoisingOn = codec_default_denoising ? true : denoising;
     vp9_settings.frameDroppingOn = frame_dropping;
+    vp9_settings.automaticResizeOn = automatic_resize;
     return new rtc::RefCountedObject<
         webrtc::VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9_settings);
   }
diff --git a/webrtc/modules/video_coding/utility/quality_scaler.cc b/webrtc/modules/video_coding/utility/quality_scaler.cc
index f1623cb6e9..3709ee3bf5 100644
--- a/webrtc/modules/video_coding/utility/quality_scaler.cc
+++ b/webrtc/modules/video_coding/utility/quality_scaler.cc
@@ -39,6 +39,11 @@ static const int kHighH264QpThreshold = 37;
 // bitstream range of [0, 127] and not the user-level range of [0,63].
 static const int kLowVp8QpThreshold = 29;
 static const int kHighVp8QpThreshold = 95;
+// QP is obtained from VP9-bitstream for HW, so the QP corresponds to the
+// bitstream range of [0, 255] and not the user-level range of [0,63].
+// Current VP9 settings are mapped from VP8 thresholds above.
+static const int kLowVp9QpThreshold = 96;
+static const int kHighVp9QpThreshold = 208;
 static const int kMinFramesNeededToScale = 2 * 30;
 
 static VideoEncoder::QpThresholds CodecTypeToDefaultThresholds(
@@ -54,6 +59,10 @@ static VideoEncoder::QpThresholds CodecTypeToDefaultThresholds(
       low = kLowVp8QpThreshold;
       high = kHighVp8QpThreshold;
       break;
+    case kVideoCodecVP9:
+      low = kLowVp9QpThreshold;
+      high = kHighVp9QpThreshold;
+      break;
     default:
       RTC_NOTREACHED() << "Invalid codec type for QualityScaler.";
   }
diff --git a/webrtc/sdk/android/src/jni/DEPS b/webrtc/sdk/android/src/jni/DEPS
index 629ad008d2..0052c975b1 100644
--- a/webrtc/sdk/android/src/jni/DEPS
+++ b/webrtc/sdk/android/src/jni/DEPS
@@ -4,6 +4,7 @@ include_rules = [
   "+webrtc/common_video/libyuv/include/webrtc_libyuv.h",
   "+webrtc/modules/utility/include/jvm_android.h",
   "+webrtc/modules/video_coding/utility/vp8_header_parser.h",
+  "+webrtc/modules/video_coding/utility/vp9_uncompressed_header_parser.h",
   "+webrtc/pc",
   "+webrtc/system_wrappers/include/field_trial_default.h",
 ]
diff --git a/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc b/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
index 1c86f08bc8..40d21d243a 100644
--- a/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
+++ b/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
@@ -39,6 +39,7 @@
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
 #include "webrtc/modules/video_coding/utility/quality_scaler.h"
 #include "webrtc/modules/video_coding/utility/vp8_header_parser.h"
+#include "webrtc/modules/video_coding/utility/vp9_uncompressed_header_parser.h"
 #include "webrtc/sdk/android/src/jni/androidmediacodeccommon.h"
 #include "webrtc/sdk/android/src/jni/classreferenceholder.h"
 #include "webrtc/sdk/android/src/jni/native_handle_impl.h"
@@ -404,12 +405,14 @@ int32_t MediaCodecVideoEncoder::InitEncode(
   codec_mode_ = codec_settings->mode;
   int init_width = codec_settings->width;
   int init_height = codec_settings->height;
-  // Scaling is disabled for VP9, but optionally enabled for VP8.
+  // Scaling is optionally enabled for VP8 and VP9.
   // TODO(pbos): Extract automaticResizeOn out of VP8 settings.
   scale_ = false;
   if (codec_type == kVideoCodecVP8) {
     scale_ = codec_settings->VP8().automaticResizeOn;
-  } else if (codec_type != kVideoCodecVP9) {
+  } else if (codec_type == kVideoCodecVP9) {
+    scale_ = codec_settings->VP9().automaticResizeOn;
+  } else {
     scale_ = true;
   }
 
@@ -1104,6 +1107,12 @@ bool MediaCodecVideoEncoder::DeliverPendingOutputs(JNIEnv* jni) {
             current_acc_qp_ += qp;
             image->qp_ = qp;
           }
+        } else if (codec_type == kVideoCodecVP9) {
+          int qp;
+          if (webrtc::vp9::GetQp(payload, payload_size, &qp)) {
+            current_acc_qp_ += qp;
+            image->qp_ = qp;
+          }
         }
       } else if (codec_type == kVideoCodecH264) {
         h264_bitstream_parser_.ParseBitstream(payload, payload_size);