Is it possible to loop audio when mixing with longer movie using avconv? I want music to repeat itself through whole movie. In avconv manual i found parameter "-flags loop" but it doesn't work. Music plays once and stops, while movie lasts longer with no sound.
avconv -i LONGER_MOVIE.mpg -i SHORTER.mp3 -flags loop -map 0:v -map 1:a MIXED_OUTPUT.mpg