This reverts commit e20a107d.

The format comments are out of sync with what the code actually
assumes. I updated the comments, and filled in some missing information from
http://www.mpucoder.com/DVD/ass-hdr.html .
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Require live555 version >= 2010.05.29

Too many quotes.

buttons in the managed layout.

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

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()