Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Switching to the non monotonic clock was still unsafe.
This fixes some sync issues on the iPad.

Switch to double, do the operations and then convert back.
This fixes the iPad video freezes.

Fixes issue for me when doing transcode{}:gather: --sout-keep and subtitle
overlaying from dvbs. Otherwise keeps last subtitles on video if new channel
doesn't contain dvbs track.

also consistenty as spu_Create is called on transcode_spu_new()

Changing places of items depending on their actual usefulness
Removing one tab
Reordering tabs according to usefulness
Reordering of tab order and buddies

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This needs heavy testing and improvement to be actually usable

Removal of UDPport... This doesn't belong here

Otherwise, VLC sometimes selects the impaired track instead of the
usual/default one. This is a major annoyance with YLE, the Finnish
national broadcaster. YLE routinely provides a visual impaired audio
track in Finnish (declared as Dutch for some reason!) in addition to
the original version.