Fixed GCC warning
Fixed GCC warning

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@5352 63c20433-aa62-49bd-875c-5a186b69a8fb

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