Prevent out-of-bounds vector access am: aff26637

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/18579474



Change-Id: I174a76073a340e7d4aa762c2a27cebbe11857b2b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>