How to clear vlc cache buffer?

[lbwtgi]

Hi:

VLC will cache some data before it renders them. This improves playback performance but sometimes it may be desirable
to tell VLC to drop all existing data already cached and to start receiving data anew.

For example while we receive http streaming if we switch to others film, but VLC will wait all it's cache buffer play out a new film. Is there anyway for VLC to immediately drop the old content already received and to start the newcontent. Thanks.

Best regards,
Ben