Merge "Fix potential overflow in WAV extractor" into qt-dev am: ee5995f8b2 am: 1bf5a0d43c am: 571c8f87ec

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/12978101

Change-Id: Ie61b1ca40f6fa95ed2b93327afc7b30376861abe