Merge "Reserve item ids for samples + grid" into rvc-qpr-dev am: e03276439f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/12306947

Change-Id: Ifd7a295b7f23ef19cf7a3bdbc05cf82e29e1d5ac
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 8f7d4bf..d99596e 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -2774,7 +2774,7 @@
         // even if the file is well-formed and the primary picture is correct.
 
         // Reserve item ids for samples + grid
-        size_t numItemsToReserve = mNumTiles + (mNumTiles > 1);
+        size_t numItemsToReserve = mNumTiles + (mNumTiles > 0);
         status_t err = mOwner->reserveItemId_l(numItemsToReserve, &mItemIdBase);
         if (err != OK) {
             return err;