v4l2src frame size problem

[Mark Howell]

On 02/17/2013 08:00 AM, Mex87 wrote:
> Hello everyone, I am now a developer who will use Gstreamer.
>
> I have a problem with the plug-in "v4l2src" in practice I would like to
> capture video using the Pinnacle Dazzle DVC 100, everything works but not
> perfectly, in practice the maximum video resolution that I can get is
> 592x576 when the device supports 720x576. I set Tuner PAL device and channel
> Composite1.
>
[snip]

FWIW I have seen something similar with Dazzle DVC 100 and gstreamer 
0.10 on precise.

In oneiric (ubuntu 11.10) I can capture NTSC at 720 x 480 with v4l2src 
using the ubuntu gstreamer packages. In precise (12.04.2) I can only get 
496 x 480. Not sure whether this is a regression in the em28xx v4l2 
kernel module, or in the v4l2src gstreamer element, or something in between.

Using (c)vlc in precise I can play 640 x 480 video, so the capability is 
there on the v4l2 driver side, but perhaps the handshaking has been 
somehow broken.

I will report here if I figure out anything more.

Cheers,

Mark.