diff --git a/media/libstagefright/frameworks/av/media/libstagefright/SampleTable.cpp b/media/libstagefright/frameworks/av/media/libstagefright/SampleTable.cpp
index b52013cb361c8..66011c4afab7a 100644
--- a/media/libstagefright/frameworks/av/media/libstagefright/SampleTable.cpp
+++ b/media/libstagefright/frameworks/av/media/libstagefright/SampleTable.cpp
@@ -388,13 +388,13 @@ status_t SampleTable::setCompositionTimeToSampleParams(
         return ERROR_IO;
     }
 
-    if (U32_AT(header) != 0) {
+    uint32_t numEntries = U32_AT(&header[4]);
+
+    if (U32_AT(header) != 0 && numEntries) {
         // Expected version = 0, flags = 0.
         return ERROR_MALFORMED;
     }
 
-    uint32_t numEntries = U32_AT(&header[4]);
-
     if (data_size != ((uint64_t)numEntries + 1) * 8) {
         return ERROR_MALFORMED;
     }