ec disable bug fix
improve the logic of locking in the function
Merge pull request #1418 from huili2/EC_option_bugfix

ec disable bug fix
Merge pull request #1419 from sijchen/fix_sm4_mt

[Encoder] improve the logic of locking in the function
    add clip in ParamTranscode for input para checking
Merge pull request #1426 from sijchen/fix_paramtranscode1

[Encoder] add clip in ParamTranscode for input para checking