Merge "MediaMuxer: add wrapper for MediaMuxer constructor" am: c8c8ddea9b am: 4fc8f9cb96 am: 1285d1b98e

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1842949

Change-Id: I887817766eab3423856f9e524b548653450c9fd4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>