Nevion DWC-HD-DMUX - Manual (Page 28)

DWC-HD-DMUX Rev. F
nevion.com | 28
Block Blk
#
Commands Example Response Control
15-17 to select between
processed/unprocessed output
vprc 0 lglz on |
lglz off
(y | cb | cr) <gain>
<offset> vprc 0 lglz on
vprc 0 lglz off
vprc 0 y 8192 0
vprc 0 cb 2000 0
vprc 0 cr 1000 1000 Video processing block
Gain and offset are both signed fixed
point numbers. Gain is in 2.13-
format, while offset for Y and the
chroma channels are given in 10.2
and 9.2 respectively.
Gain range is 0
– 32767, Gain
=0x
= 0,
Gain
=1x
= 8192, Gain
=4x
= 32767
Luma Offset range is -4095 – 4095,
Offset
=0
= 0
Chroma Offset range is -2047 –
2047, Offset
=0
= 0
sync 0 - sync 0 'lol' | ('lock' ('trilvl' |
'bb' | 'sdi') ) Sync block
Frequency reference for video output.
Status only, no commands available.
dly 0 <frames>frms
<lines>lines
<samples>sps dly 0 2frms
dly 0 2lines 30sps
dly 0 0frms 50sps
dly 0 0frms 3lines
50sps 'tgt' <frames> frms
<lines> lines
<samples> sps Video delay
This sets the minimum video delay of
the card.
In info this block reports back the
current delay in nanoseconds. This
will vary with the incoming video
standard.
dly 1 <audio_samples>sps dly 1 -30sps 'tgt'
<audio_samples>
sps audio delay
The audio delay is given in audio
samples. Audio delay is always given
relative to video.
dly 2 <lines>lines
<samples>sps dly 2 1lines -30sps 'phase' <lines>
lines <samples>
sps Video phase
If lines != 0 the resulting phase will
vary with incoming video standard,
see dly 0 above.
vgen 0 cbar |
chkfield |
white |
yellow |
cyan |
green |
magenta |
red |
blue |
black
flat <Y> <Cb> <Cr>
video
<lns>/<rate><scan>
wss (off | (on
<wss_val>) ) vgen 0 cbar
vgen 0 flat 200 0 100
vgen 0 video 576/25i
vgen 0 video 486/29i
vgen 0 wss auto
vgen 0 wss on 7 video
<lns>/<rate><scan
> wss ( auto| off | (
on <wss_value> ) )
(cbar | chkfield |
white | yellow |
cyan | green |
magenta | red |
blue | black | (flat
<Y> <Cb> <Cr>) ) Internal video generator.
The video generator will be activated
in two different ways: If selected as a
fallback option the generator will
generate the selected pattern when
the other input(s) are missing, and
then use the video settings from the
last external source present. It can
also be selected as the main input in
cho 1, in which case its own video
settings will also be used.
vdac 0 cvbs |
ypbpr |
rgb |
svideo |
palbg |
palm |
paln |
ntsc |
bsetup (on | off ) |
wss (auto | off | (on vdac 0 fmt ( cvbs |
ypbpr | rgb | svideo
) mod ( palbg | paln
) ( ntsc | palm )
bsetup ( on | off )
wss ( auto (on | off )
| on | off ) Video DAC
The module can handle 50Hz- and
60Hz-
based sources, but can’t
convert video material between these
time bases. The user must therefore
select two modulations, one for
50Hz-based sources and one for
60Hz-based sources.
The (on | off) immediately following
the wss auto is a status telling if the