--- a/dom/media/platforms/agnostic/VPXDecoder.cpp
+++ b/dom/media/platforms/agnostic/VPXDecoder.cpp
@@ -154,17 +154,18 @@ VPXDecoder::DoDecodeFrame(MediaRawData* 
     RefPtr<VideoData> v = VideoData::Create(mInfo,
                                             mImageContainer,
                                             aSample->mOffset,
                                             aSample->mTime,
                                             aSample->mDuration,
                                             b,
                                             aSample->mKeyframe,
                                             aSample->mTimecode,
-                                            mInfo.ImageRect());
+                                            mInfo.ScaledImageRect(img->d_w,
+                                                                  img->d_h));
 
     if (!v) {
       LOG("Image allocation error source %ldx%ld display %ldx%ld picture %ldx%ld",
           img->d_w, img->d_h, mInfo.mDisplay.width, mInfo.mDisplay.height,
           mInfo.mImage.width, mInfo.mImage.height);
       return -1;
     }
     mCallback->Output(v);