On Sun, 6 Apr 2014 13:33:32 -0700 (PDT) kathodus <pfribeiro at gmail.com> wrote: > b) '-g 50' there is a minimum requirement for the keyframe interval of less > than or equal to 2 seconds. I have been able to work out that this > corresponds to less than or equal to 2*fps. -g will be ignored when you stream copy the video with -vcodec copy.