check return value see https://sourceforge.net/p/gpac/code/4720/
check return value
see https://sourceforge.net/p/gpac/code/4720/

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@4723 63c20433-aa62-49bd-875c-5a186b69a8fb

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