australia-optus). The next couple of
screens will have some back-end job
options, such as if you want to use
autostart and transcode after recording
shows.
• Capture cards – Select new capture
card. You must then enter a supported
card type (analog V4L card, MJPEG
cards such as Matrox G200, MPEG-2
encoder cards such as the Hauppauge
line, DVB DTV cards, pcHDTV DTV
cards, firewire cable box, USB MPEG-4
devices such as Plextor ConvertX, and
Dbox2 TCP/ IP cable box).
• Video sources – Select a new video
source. Enter a generic name and se-
lect the appropriate XMLTV listings
grabber. For North America, select
DataDirect. Then enter your user ID
and password you created at the
zap2it registration site. Hit enter; the
setup script then retrieves your chan-
nel lineup and populates the database
with the appropriate cable/ satellite
provider system information. You will
then need to select an input connec-
tion. Select tuner and match it to the
name you provided for your listings
profile. It will then scan your TV card
for active channels based upon your
XML listings preferences.
European Users will have to make
several key changes in the mythtv-setup:
• TV format = PAL
• VBI Format = PAL Teletext
• Channel Frequency table =
europe-west
You need to adjust the screen size from
the recording profiles setup screen: Main
Menu | Setup | TV | Recording profiles.
The profiles need to have the height
changed from 576 to 480 and the width
changed from 480 to 720. In the /etc/
mythtv/modules/ivtv file, tuner type=1
has to be replaced with tuner type=5.
You’ll also need to add the following
entry:
rmmod tveeprom modprobe
U
tveeprom dmesg
And /etc/sysconfig/ivtv/cfg should have
the following:
IVTV_TUNER=X
U
IVTV_TYPE='PAL'
X is the tuner type and should be re-
placed with the appropriate value.
After the initial setup is complete, you
will see a message about running myth-
filldatabase to populate your back end
database. Knoppmyth then automati-
cally tries to configure your Mythweather
settings based upon your provider’s sys-
tem area. The installer will then auto-
matically run the mythfilldatabase com-
mand, which fills the database with two
weeks worth of programming schedules.
Once that’s done, MythTV will startup
for the first time. You will then see a
message about pre-scaling theme images
and the front-end GUI becomes active.
You are now ready to start using
MythTV. At anytime, you can rerun the
MythTV setup interfaces by issuing the
following command:
mythtv-setup
The Video Signal
The quality of the signal is determined
by the quality of the TV capture card you
purchased for your system. If you decide
to purchase the more expensive
Hauppauge 350, you will have a very
good video connection that will need
some manual configuration. Basically
you will need to have the video piped
out to a frame buffer device [5] [6].
If you purchase the less expensive
Hauppauge 250 or 150, you will need a
video card with a video out connection.
The low end NVidia MX420/ 440 is rela-
tively cheap. You will have to slightly
modify your Xorg/ XF86 configuration
file. My file has the following settings:
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "EFX"
BoardName "nVidia
U
GeForce 4 MX 420"
#TV Out
Option "TVStandard" "NTSC-M"
Option "TVOutFormat" "SVIDEO"
EndSection
My file also contains the settings shown
in Listing 1 to specify a television set.
The Cable or Satellite
Receiver
If you use a digital cable or satellite tele-
vision system, you will have to configure
a serial port infrared blaster. An IR-
blaster tricks the cable/ satellite box into
Depending on your location, you may
wish to try one of the following
“TVStandard” values:
• “PAL-B” – used in Belgium, Denmark,
Finland, Germany, Guinea, Hong
Kong, India, Indonesia, Italy, Malaysia,
The Netherlands, Norway, Portugal,
Singapore, Spain, Sweden, and
Switzerland
• “PAL-D” – used in China and North
Korea
• “PAL-G” – used in Denmark, Finland,
Germany, Italy, Malaysia, The Nether-
lands, Norway, Portugal, Spain,
Sweden, and Switzerland
• “PAL-H” – used in Belgium
• “PAL-I” – used in Hong Kong and
United Kingdom
• “PAL-K1” – used in Guinea
• “PAL-M” – used in Brazil
• “PAL-N” – used in France, Paraguay,
and Uruguay
• “PAL-NC” – used in Argentina
• “NTSC-J” – used in Japan
• “NTSC-M” – used in Canada, Chile,
Colombia, Costa Rica, Ecuador, Haiti,
Honduras, Mexico, Panama, Puerto
Rico, South Korea, Taiwan, United
States of America, and Venezuela
TV Standards
01 Section "Screen"
02 Identifier "Screen0"
03 Device "Videocard0"
04 Monitor "Monitor0"
05 DefaultDepth 24
06 SubSection "Display"
07 Depth 24
08 Modes "1024x768" "800x600"
"640x480"
09 EndSubSection
10 EndSection
11 Section "Monitor"
12 Identifier "Monitor0"
13 VendorName "Monitor Vendor"
14 ModelName "32in Analog TV"
15 HorizSync 30.0 - 50.0
16 VertRefresh 60.0 - 60.0
17 Option "dpms"
18 EndSection
Listing 1: Specifying a
Television Set
KNOW-HOW
MythTV
55
ISSUE 71 OCTOBER 2006
W W W . L I N U X
-
M A G A Z I N E . C O M
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