--- a/dom/media/platforms/agnostic/BlankDecoderModule.cpp
+++ b/dom/media/platforms/agnostic/BlankDecoderModule.cpp
@@ -88,24 +88,23 @@ private:
     if (!aData) {
       mCallback->Error(MediaDataDecoderError::FATAL_ERROR);
       return;
     }
 
     // Frames come out in DTS order but we need to output them in PTS order.
     mReorderQueue.Push(aData);
 
-    while (mReorderQueue.Length() > mMaxRefFrames) {
-      mCallback->Output(mReorderQueue.Pop().get());
-    }
-
     if (mReorderQueue.Length() <= mMaxRefFrames) {
       mCallback->InputExhausted();
+    } else {
+      while (mReorderQueue.Length() > mMaxRefFrames) {
+        mCallback->Output(mReorderQueue.Pop().get());
+      }
     }
-
   }
 
 private:
   nsAutoPtr<BlankMediaDataCreator> mCreator;
   MediaDataDecoderCallback* mCallback;
   const uint32_t mMaxRefFrames;
   ReorderQueue mReorderQueue;
   TrackInfo::TrackType mType;