Avoid read out of bounds am: 9d33304ec7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/18492389

Change-Id: I6aaef8a75ca488b6c4875e0376d63834b0422e38
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>