[mythtv-users] Having problems / Need info on BOB Deinterlacing

[David Watkins]

On 01/06/06, James Buckley <james at logicland.co.uk> wrote:
> I don't know what H.264 is, but I'm guessing it's HD.

It's a highly aggressive compression codec, under the MPEG4 banner I
believe.  I guess it could be applied to Standard Definition signals
but it comes into it's own for HD.

Anyway, the card I
> have is Fusion HDTV Dual Digital tuner; works nicely; however one tuner is
> slightly more susceptible to noise than the other. The info you say makes
> sense, however how come some cards are sold as having Hardware MPEG2
> compression, and some don't.

I need to be carefull what I say because I don't know anything about
your Fusion tuner.  However, as I understand it digital transmissions
are always encoded (it would make no sense to broadcast uncompressed
video) and [all?] digital capture cards simply preserve the encoding
when they save to disk.  That's why my DVB card can capture both MPEG2
and MPEG4 streams.

Analog transmissions on the other hand must be encoded before they are
saved to disk and this is where the different card types come in.
Some cards have hardware encoding built in, others rely on the CPU to
do the work.

Maybe your card also has an analog input (S-video or Tuner) ?

The cards that boast this normally acclaim to
> need much lower spec systems. Anyway, what BBC trial area is this?

The BBC are offering a schedule HD service via satellite (DVB-S)
across the UK.  They are also broadcasting some unscheduled HD content
from the Crystal Palace Transmitter in London.  This is what I have
captured. Playback however remains an issue.

http://forum.digitalspy.co.uk/board/showthread.php?t=348897&page=1&pp=25


Actually, browsing digitalspy, it looks like the BBC have given away
some freeview set top boxes for the HD trial in London,  so maybe they
are scheduling programmes?