Merge "MEPG4Writer:return track errors to clients" into rvc-dev am: ea5f4133c7 am: 7150296fcb am: 94ca6309da am: 15334609ae

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11708138

Change-Id: Ib46c924aca776ce0fad26bd9132d292a4c0408f9