add return for get emap file
add return for get emap file

telecamera/opencvr,herocodemaster/opencvr,telecamera/opencvr,herocodemaster/opencvr,xiaojuntong/opencvr,telecamera/opencvr,herocodemaster/opencvr,xsmart/opencvr,xiaojuntong/opencvr,veyesys/opencvr,veyesys/opencvr,veyesys/opencvr,xsmart/opencvr,xiaojuntong/opencvr,veyesys/opencvr,xiaojuntong/opencvr,veyesys/opencvr,xsmart/opencvr,telecamera/opencvr,xsmart/opencvr,xsmart/opencvr,herocodemaster/opencvr