remove_systems_tracks 3788 applications/mp4box/main.c 		if (!keep_sys_tracks) remove_systems_tracks(file);
remove_systems_tracks 3825 applications/mp4box/main.c 		if (!keep_sys_tracks) remove_systems_tracks(file);
remove_systems_tracks 4579 applications/mp4box/main.c 		remove_systems_tracks(file);