MltPlaylist.cpp: return null on clip_info method if mlt_playlist_get_clip_info fails.
[melted] / mlt++ / CUSTOMISING
2005-06-27 lilo_booterCUSTOMISING
2005-06-26 lilo_booterCUSTOMISING
2005-04-12 lilo_booterMinor doc updates
2005-03-16 lilo_booterServer customisation