when sps/pps non exist, return dsNoParamSets
when sps/pps non exist, return dsNoParamSets
    add UT for LTR setopton and fix crash issue
Merge pull request #1325 from huili2/ps_ne_deal_v1.1.1

when sps/pps non exist, return dsNoParamSets
Merge pull request #1323 from huili2/ps_ne_deal

when sps/pps non exist, return dsNoParamSets
Merge pull request #1324 from ruil2/ltr_check_update

    add UT for LTR setopton and fix crash issue