[mythtv-users] MJPEG cards?

Mark Edwards irish at irishmark.co.uk
Sun Jul 6 20:23:05 EDT 2003


I use one of these and get similar errors, but it works fine.
If you recompile it with DEBUG=0 in the code the errors will go away.
as for getting a blank screen are you sure you have selected the correct
input?

----- Original Message ----- 
From: "Igor Izyumin" <igor at mlug.missouri.edu>
To: <mythtv-users at snowman.net>
Sent: Sunday, July 06, 2003 2:33 AM
Subject: [mythtv-users] MJPEG cards?


> Hello everyone.
> I'm trying to get MythTV to work with a TV card that has an MJPEG
> hardware codec.  The card is a Pinnacle DC10Plus, and it uses the Zoran
> ZR36060 chip.  It does not have a tuner, because it's designed for video
> editing and such.  It will work for my purposes, since I am using a
> cable box anyway.
>
> I do not understand if MythTV even supports using such cards.  The
> documentation briefly mentions using one such card, but I am not sure
> how to set it up.  Right now, I have a MythTV 0.10 install.  The card is
> properly installed and works with mjpegtools.  When I try to watch TV, I
> get a big stream of errors from the backend (and a blank screen on the
> frontend):
>
> VIDIOCSYNC0: Invalid argument
> VIDIOCSYNC1: Invalid argument
> VIDIOCSYNC0: Invalid argument
> VIDIOCSYNC1: Invalid argument
> VIDIOCSYNC0: Invalid argument
> VIDIOCSYNC1: Invalid argument
> and so on...
>
> The backend also shows the following when it starts up:
> Starting up as the master server.
> Probed: /dev/video - Composite
> Probed: /dev/video - S-Video
> Probed: /dev/video - Internal/comp
> VIDIOC_S_STD: Invalid argument
>
>
> Any ideas?  I would really like to get this to work, since using
> NuppelVideo is not possible on my slow 700MHz machine.
>
> Thanks.
> -- Igor
>
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