[mythtv] [Fwd: [mythtv-users] Capturing with Philips SAA7130 based card]

Tim McClarren tim at 7thheaven.org
Thu Sep 15 00:46:38 UTC 2005

Thanks... I was already aware I could use a filter to do it... I was 
hoping that there were some driver options I could pass at load time to 
make it do this.

The hardware supports cropping, but I guess the current v4l driver for 
this chipset does not.

Michael Haas wrote:
>     ---------- Forwarded message ----------
>     From: Tim McClarren < tim at 7thheaven.org <mailto:tim at 7thheaven.org>>
>     To: mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
>     Date: Sat, 10 Sep 2005 16:40:22 -0700
>     Subject: [mythtv-users] Capturing with Philips SAA7130 based card
>     I have a cheap card based on the Philips SAA7130.
>     When capturing video in Myth (Live or otherwise) I get a few pixels of
>     black along the left hand side, and some black and grey garbage along
>     the bottom.  The rest of the image is fine (and includes all of the
>     NTSC
>     signal, AFAI can tell).
>     Does anyone know what I can configure in Myth to correct the capture on
>     the back end?  The chipset supports cropping, I'm not sure the driver
>     for Linux does though.
>     I can futz with playback on each front end to get the image looking
>     nicely by overscanning slightly and moving it, but I'd rather crop out
>     the garbage so that I can have nicely captured video that looks good in
>     my media player, as well.
>  http://mythtv.org/docs/mythtv-HOWTO-10.html#ss10.4
> Look for the 'crop' filter.
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