hi, i have made an application with something moving in the screen using opengl. i wanted to make a flv(possibly) recording what happen in the screen. i serched with google flv file format ecc, but found only reader. using fortran i have no access to many library so i need the file format, hot to write header ecc..if it cannot be flv then i wanted to try mpg or avi thanks

You might want to take a look at ffmpeg. You should be able to find fortran bindings to it somewhere.

it seems very interesting thanks!