Fixed more GCC warnings
Fixed more GCC warnings

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@4147 63c20433-aa62-49bd-875c-5a186b69a8fb

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