stagefright: MP4Extractor: allow 10% overhead on default sample size am: a27317ab45 am: 268c480035 am: 87ce4202df am: d8c0785a36 am: fed97f38c2 am: 44f4c4d388 am: bdba8a6e12 am: de67feb70e am: 4723392015 am: c071a00dcf am: 7555e69a7e am: 181e39beba am: d8ec820e75 am: a509637d0f
am: 51d2cca75f

Change-Id: Ibc06470d1c358db6f3e83acc9ddd434ba24f5ab9