Problem capturing from Hauppauge WinTV-HVR1120 DVB-T/H

[Tvrtko Ursulin]

Hi all,

This is a three input cards (DVB-T, Composite and S-Video) and I am at the
moment struggling to capture from the Composite input, for example.

Attached are some v4l2-ctl outputs and gst-launch debug logs.

First thing I do is set input to composite:
v4l2-ctl -d 0 -i 1

Most naive attempt to get something is:
gst-launch-0.10  v4l2src ! queue ! xvimagesink

Which fails with (also log.0 attached):
gstv4l2object.c(2093): gst_v4l2_object_set_format (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Call to S_FMT failed for YUYV @ 720x480: Invalid argument

Gstreamer is 0.10.32 and plugins-good are 0.10.27.

I tried messing around with specifying caps like:
v4l2src ! video/x-raw-yuv,format=YV12 ! queue ! xvimagesink

Which results in (log.yv12):
WARNING: erroneous pipeline: could not link v4l2src0 to queue0

If anyone has any hints on what is the problem it would be appreciated.

Thanks,

Tvrtko

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[Marco Ballesio]

Hi,

On Wed, May 25, 2011 at 5:17 PM, Tvrtko Ursulin
<[hidden email]> wrote:

>
> Hi all,
>
> This is a three input cards (DVB-T, Composite and S-Video) and I am at the
> moment struggling to capture from the Composite input, for example.
>
> Attached are some v4l2-ctl outputs and gst-launch debug logs.
>
> First thing I do is set input to composite:
> v4l2-ctl -d 0 -i 1
>
> Most naive attempt to get something is:
> gst-launch-0.10  v4l2src ! queue ! xvimagesink
>
> Which fails with (also log.0 attached):
> gstv4l2object.c(2093): gst_v4l2_object_set_format (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
> Call to S_FMT failed for YUYV @ 720x480: Invalid argument

some memories from an old bt878-based card. I remember that some color
space combinations did not work with a given frame size/interlacing
method.. maybe you can get more info about this on the linuxtv.org's
mailing lists.

>
> Gstreamer is 0.10.32 and plugins-good are 0.10.27.
>
> I tried messing around with specifying caps like:
> v4l2src ! video/x-raw-yuv,format=YV12 ! queue ! xvimagesink
>
> Which results in (log.yv12):
> WARNING: erroneous pipeline: could not link v4l2src0 to queue0

using an ffmpegcolospace between the queue and xvimagesink could help.
The queue itself is not mandatory in this pipeline.

Regards

>
> If anyone has any hints on what is the problem it would be appreciated.
>
> Thanks,
>
> Tvrtko
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>

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[Tvrtko Ursulin-2]

On Thursday 02 Jun 2011 10:15:46 Marco Ballesio wrote:

> Hi,
>
> On Wed, May 25, 2011 at 5:17 PM, Tvrtko Ursulin
>
> <[hidden email]> wrote:
> > Hi all,
> >
> > This is a three input cards (DVB-T, Composite and S-Video) and I am at
> > the moment struggling to capture from the Composite input, for example.
> >
> > Attached are some v4l2-ctl outputs and gst-launch debug logs.
> >
> > First thing I do is set input to composite:
> > v4l2-ctl -d 0 -i 1
> >
> > Most naive attempt to get something is:
> > gst-launch-0.10  v4l2src ! queue ! xvimagesink
> >
> > Which fails with (also log.0 attached):
> > gstv4l2object.c(2093): gst_v4l2_object_set_format ():
> > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Call to S_FMT failed for
> > YUYV @ 720x480: Invalid argument
>
> some memories from an old bt878-based card. I remember that some color
> space combinations did not work with a given frame size/interlacing
> method.. maybe you can get more info about this on the linuxtv.org's
> mailing lists.

It seems to be fixed in more recent GStreamer. There was nothing in the change
logs but commit 6b86b56abd8a28b9e94cee679e3d86367a9a0ab3 sounds like could be
the one.
 
Thanks,

Tvrtko
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