diff --git a/media/libstagefright/SampleIterator.cpp b/media/libstagefright/SampleIterator.cpp
index 4f31c5f..75f744d 100644
--- a/media/libstagefright/SampleIterator.cpp
+++ b/media/libstagefright/SampleIterator.cpp
@@ -172,7 +172,7 @@
         if (mSampleToChunkIndex + 1 < mTable->mNumSampleToChunkOffsets) {
             mStopChunk = entry[1].startChunk;
 
-            if (mStopChunk < mFirstChunk ||
+            if (mSamplesPerChunk == 0 || mStopChunk < mFirstChunk ||
                 (mStopChunk - mFirstChunk) > UINT32_MAX / mSamplesPerChunk ||
                 ((mStopChunk - mFirstChunk) * mSamplesPerChunk >
                  UINT32_MAX - mFirstChunkSampleIndex)) {