fix wrong init seg erasure for 'MP4Box -dash-ctx'
fix wrong init seg erasure for 'MP4Box -dash-ctx'

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@5104 63c20433-aa62-49bd-875c-5a186b69a8fb

vladimir-kazakov/gpac,drakeguan/gpac,rauf/gpac,nguyen-viet-thanh-trung/gpac,DmitrySigaev/gpac,canatella/gpac,porcelijn/gpac,gpac/gpac,rbouqueau/gpac,aymanelyaagoubi/gpac,ARSekkat/gpac,rauf/gpac,emmanouil/gpac,rbouqueau/gpac_brew_travis,rbouqueau/gpac_brew_travis,rbouqueau/gpac,epam/gpac,emmanouil/gpac,nguyen-viet-thanh-trung/gpac,psteinb/gpac,rbouqueau/gpac,DmitrySigaev/gpac,aymanelyaagoubi/gpac,aymanelyaagoubi/gpac,RodolpheFouquet/gpac,vladimir-kazakov/gpac,DmitrySigaev/gpac,canatella/gpac,RodolpheFouquet/gpac,rbouqueau/gpac_brew_travis,psteinb/gpac,canatella/gpac,emmanouil/gpac,porcelijn/gpac,RodolpheFouquet/gpac,epam/gpac,gpac/gpac,porcelijn/gpac,Bevara/Access-open,DmitrySigaev/gpac,psteinb/gpac,RodolpheFouquet/gpac,rauf/gpac,canatella/gpac,porcelijn/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,epam/gpac,rbouqueau/gpac_brew_travis,rauf/gpac,DmitrySigaev/gpac,Bevara/Access-open,Bevara/Access-open,canatella/gpac,porcelijn/gpac,emmanouil/gpac,aymanelyaagoubi/gpac,canatella/gpac,vladimir-kazakov/gpac,rbouqueau/gpac,epam/gpac,vladimir-kazakov/gpac,rauf/gpac,nguyen-viet-thanh-trung/gpac,rbouqueau/gpac,Bevara/Access-open,emmanouil/gpac,rauf/gpac,ARSekkat/gpac,rbouqueau/gpac,nguyen-viet-thanh-trung/gpac,RodolpheFouquet/gpac,psteinb/gpac,nguyen-viet-thanh-trung/gpac,vladimir-kazakov/gpac,rbouqueau/gpac,ARSekkat/gpac,porcelijn/gpac,Bevara/Access-open,ARSekkat/gpac,canatella/gpac,aymanelyaagoubi/gpac,epam/gpac,emmanouil/gpac,rbouqueau/gpac_brew_travis,epam/gpac,vladimir-kazakov/gpac,drakeguan/gpac,drakeguan/gpac,gpac/gpac,Bevara/Access-open,aymanelyaagoubi/gpac,gpac/gpac,drakeguan/gpac,psteinb/gpac,psteinb/gpac,RodolpheFouquet/gpac,ARSekkat/gpac,drakeguan/gpac,DmitrySigaev/gpac,ARSekkat/gpac,gpac/gpac,nguyen-viet-thanh-trung/gpac,drakeguan/gpac,gpac/gpac,rbouqueau/gpac_brew_travis