get the start time of overlay . concode_field_sep long mStartTimeMs concode_elem_sep Map<String,String> mUserAttributes concode_elem_sep String mUniqueId concode_elem_sep MediaItem mMediaItem concode_elem_sep long mDurationMs concode_field_sep void setDuration concode_elem_sep void setUserAttribute concode_elem_sep long getDuration concode_elem_sep void setStartTimeAndDuration concode_elem_sep Map<String,String> getUserAttributes concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String getId concode_elem_sep void setStartTime concode_elem_sep MediaItem getMediaItem
long function ( ) { return mStartTimeMs ; }