Merge "Fix integer overflow in MPEG4Extractor" am: 80fe08ba70

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2330395

Change-Id: Ib8a213083e355bd4b2243c6e54193be5f845133d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>