slackbuilds_ponce/multimedia/gpac

GPAC is mainly used to package multimedia content for local or streaming 
playback.  GPAC includes MP4Box utility which lets packaging of 
various audio and video codecs into mp4 container

Dependencies:
REQUIRED: ffmpeg xvidcore faad2 a52dec
OPTIONAL: wxGTK

wxGTK is disabled by default, can be turned on by passing WX_SUPPORT=yes 
to the script