--- a/media/libstagefright/binding/MoofParser.cpp
+++ b/media/libstagefright/binding/MoofParser.cpp
@@ -70,19 +70,21 @@ MoofParser::RebuildFragmentedIndex(BoxCo
       }
 
       if (!mMoofs.IsEmpty()) {
         // Stitch time ranges together in the case of a (hopefully small) time
         // range gap between moofs.
         mMoofs.LastElement().FixRounding(moof);
       }
 
-      mMoofs.AppendElement(moof);
-      mMediaRanges.AppendElement(moof.mRange);
-      foundValidMoof = true;
+      if (moof.IsValid()) {
+        mMoofs.AppendElement(moof);
+        mMediaRanges.AppendElement(moof.mRange);
+        foundValidMoof = true;
+      }
     } else if (box.IsType("mdat") && !Moofs().IsEmpty()) {
       // Check if we have all our data from last moof.
       Moof& moof = Moofs().LastElement();
       media::Interval<int64_t> datarange(moof.mMdatRange.mStart, moof.mMdatRange.mEnd, 0);
       media::Interval<int64_t> mdat(box.Range().mStart, box.Range().mEnd, 0);
       if (datarange.Intersects(mdat)) {
         mMediaRanges.LastElement() =
           mMediaRanges.LastElement().Span(box.Range());