[MPlayer-users] Unable to watch TV with mplayer, is this supported?

[juhis at trinity.is-a-geek.com]

Hi there,

I have a Siemens premium dvb-c card with an onboard mpeg decoder. I've
tried to read the videostream that the dvb card mpeg decoder produces to
the v4l device with mplayer option tv:// but I can't seem to get it to
work. Does this make any sense, ie. should/could this work. I read the
documentation on tv watching and tried the example there, and below is
the output of the command.

I know that at least tvtime and xawtv do support tv watching with dvb
cards, and as far as I understand, mplayer too supports this at least with
analog cards, so in theory, this should be possible. If it isn't supported
yet, what do you think, how big a job would it be to support this in
mplayer. If I were to try to add support for this, where should I start?
My programming skills are seriously limited, but I guess this could be
some sort of parameter tuning, since the basic infrastructure is there as
far as can tell.

Thanks for any information,

Juha
____________________________________________________________________

bash:~# mplayer -tv driver=v4l:width=640:height=480:outfmt=i420 -vc
rawi420 tv://
MPlayer 1.0pre2-3.2.3 (C) 2000-2003 MPlayer Team

CPU: Intel Pentium III Katmai/Pentium III Xeon Tanner 515.8 MHz (Family:
6, Step
ping: 3)
Detected cache-line size is 32 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 SSE

Reading config file /usr/local/etc/mplayer/mplayer.conf: No such file or
directo
ry
Reading config file /root/.mplayer/config
Reading /root/.mplayer/codecs.conf: Can't open
'/root/.mplayer/codecs.conf': No
such file or directory
Reading /usr/local/etc/mplayer/codecs.conf: Can't open
'/usr/local/etc/mplayer/c
odecs.conf': No such file or directory
Using built-in default codecs.conf
font: can't open file: /root/.mplayer/font/font.desc
font: can't open file: /usr/local/share/mplayer/font/font.desc
Using Linux hardware RTC timing (1024Hz).
Can't open input config file /root/.mplayer/input.conf: No such file or
director
y
Can't open input config file /usr/local/etc/mplayer/input.conf: No such
file or
directory
Falling back on default (hardcoded) input config

Playing tv://
TV detected! ;-)
Selected driver: v4l
 name: Video 4 Linux input
 author: Alex Beregszaszi
 comment: under development
Selected device: DVB Board
 Capabilites: capture tuner overlay clipping frameram scales
 Device type: 235
 Supported sizes: 32x32 => 768x576
 Inputs: 1
  0: DVB: tuner audio tv camera  (tuner:1, norm:ntsc)
Card reports an unknown audio mode !
Trying two channel audio. Use forcechan to override.
Card reports an unknown audio mode !
Trying two channel audio. Use forcechan to override.
Using input 'DVB'
ioctl get tuner failed: Invalid argument
Tuner isn't capable to set norm!
Error: Cannot set norm!