[pvrusb2] automatic frequency scanning / ghosting
Tamas K Papp
tpapp at Princeton.EDU
Sun Jan 28 05:21:56 CST 2007
It appears that my cable provider uses a non-standard frequency table.
Is it possible to scan for the channels somehow (without mythtv)?
When using ivtv-tune to set the frequency, it tells me if there is a
signal detected. However, a signal is detected at +- .5 Mhz the
original frequency (with degratation of picture quality at the
endpoints). How could one tune automatically using the pvrusb2
device? Would taking the midpoints of the range where a signal is
detected be a viable approach? I would be happy to write code/scripts
but need advice on what to do.
One of the channels has mild ghosting, eg
(B'Ellana's face is ghosted over Seven)
can that be the result of a misspecified frequency? The picture is
perfect on TV.
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