Re: [gentoo-user] video capture

[Nick Rout]

On Tue, 18 Jul 2006 17:50:04 -0400
gentoo wrote:

> I have tryed the cat command all I get in the .mpg is snow . I tryes to use
> composit video and still get snow. Do I have to tell the tuner to tune to
> line in port
> rob

use ivtvctl -n to get a list of inputs

mine shows:

nick@media:~$ ivtvctl -n
ioctl: VIDIOC_ENUMINPUT
        Input   : 0
        Name    : Tuner
        Type    : 0x00000001
        Audioset: 0x00000003
        Tuner   : 0x00000000
        Standard: 0x00000000000000FF ( PAL )
        Status  : 0

        Input   : 1
        Name    : Composite 0
        Type    : 0x00000002
        Audioset: 0x00000003
        Tuner   : 0x00000000
        Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
        Status  : 0

        Input   : 2
        Name    : Composite 1
        Type    : 0x00000002
        Audioset: 0x00000003
        Tuner   : 0x00000000
        Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
        Status  : 0

        Input   : 3
        Name    : S-Video 0
        Type    : 0x00000002
        Audioset: 0x00000003
        Tuner   : 0x00000000
        Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
        Status  : 0

        Input   : 4
        Name    : S-Video 1
        Type    : 0x00000002
        Audioset: 0x00000003
        Tuner   : 0x00000000
        Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
        Status  : 0


Then use ivtvctl -p X to set the input to X - egi want to set input 1
for composite 0  so I do:

ivtvctl -p 1

you can check what it is set to with 

ivtvctl -P

nick@media:~$ ivtvctl -P
ioctl VIDIOC_G_INPUT ok
Video input = 1



>
> On Sunday 16 July 2006 20:00, Nick Rout wrote:
> > You have a pvr-150 which has onboard mpeg2 encoding. Most standard v4l
> > software will not play tv from such a card, because it expects a different
> > format from the card. For example the tvtime supported cards list says:
> >
> > "The ivtv driver supports cards that provide high quality MPEG2 encoded
> > video. This cards are ideal for PVR systems. However, tvtime has no
> > MPEG2 decoding capabilities or audio playback code, and therefore cannot
> > be used to watch live TV from these cards."
> >
> > Try
> >
> > cat /dev/video0 > test.mpeg
> > ctrl-c to stop
> > mplayer test.mpeg
> >
> > or just:
> >
> > mplayer /dev/video
> >
> > you can tune the card and adjust the inputs etc with the tools provided
> > by ivtv. Mine is permanently set to the composite inputs as it used for
> > the output from a set top box. I have never used the tuner. getting an
> > external composite video signal like a set top box output a VHS player
> > is a good way to test. Move onto the tuner once you are sure you can get
> > composite to work.
> >
> >
> > On Sat, 15 Jul 2006 16:53:29 -0400
> >
> > rob wrote:
> > > On Saturday 15 July 2006 14:15, Uwe Thiem wrote:
> > > > On 15 July 2006 18:25, Richard Fish wrote:
> > > > > On 7/15/06, rob <gentoo@×××××××××××××××.org> wrote:
> > > > > > emerged  most of the stuff in media-tv but I can't get anyone of
> > > > > > thease to show TV most say device not configured. Evan the ones
> > > > > > that I know point to /dev/video0
> > > > > > I think I did everything right.
> > > > > > pleas help or tell me of a better card to use.
> > > > >
> > > > > Are you sure this is a card problem, and not a permissions issue?  It
> > > > > looks like udev makes most of the device nodes in the "video" group.
> > > > > Is your user account a member of that group?
> > >
> > > Well I emerged gentoo-sources with ~86 gave me linux-2.6.17-gentoo-r3.
> > > Now the tuner comes up and  using the ivtv test it now captures only snow
> > > but it is a start. I have tryed to change channel but it doesn't work.
> > > Even line in gives me the same thing.  Any other seguestions
> > >
> > > rob
> > > --
> > > gentoo-user@g.o mailing list
> >
> > --
> > Nick Rout <nick@×××××××.nz>
> --
> gentoo-user@g.o mailing list

-- 
Nick Rout <nick@×××××××.nz>

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