It's a bit of a hack, but atm it's the best place to free them.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9711 b3059339-0415-0410-9bf9-f77b7e298cf2
delay relative to sh_video->timer (or to 0 if audioonly).
It fixes ct: drifts of very long (several hours) playback.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8057 b3059339-0415-0410-9bf9-f77b7e298cf2