[mythtv-users] analog video camera and Mythtv?

[Nick]

On 26/01/06, Roger Hanson <roger at rogerhanson.com> wrote:
>  Nick wrote:
> You first need to select one of the available inputs (i.e. tuner,
> Composite, S-Video) using 'ivtvctl -p x' which, when selected, are
> "patched" to video0. When using MythTV, all of this input switching is
> transparent to the user, but on the command line it is needed.
>
> For example, to switch to the input "Composite 2" (id 2) you would use
>
> # ivtvctl -p 2
>
> To then capture from this input, you would use
>
> dd if=/dev/video0 of=/myth/tv/myfile.mpg bs=64k
>
> Check which input you specified in mythtvsetup and then try to capture
> video from /dev/video0 after having switched to this input. You
> _should_ get the same results as you saw in MythTV.
>
> Black and white video when you were expecting colour is almost always
> (on the PVR cards) due to either selecting the wrong type of input
> (S-Video instead of Composite) or using a cable that does not support
> S-Video. Finally, ensure that the ivtv driver is autodetecting you
> tuner type and correctly setting the video format (you can manually
> set this using ivtvctl too).
>
> Nick
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>
>
>
>  Thanks - that's exactly what I was doing wrong,  I  was selecting the
> source number and then expecting to switch to something other than video0 as
> well - sort of double switching?  That makes sense now that I will always
> record off /dev/video0 instead of other sources (unless I get another tuner
> card...)
>
>  Anyway, I'm recording in color now.

Great to hear!

Nick