On 04/17/2014 11:18 AM, Steve Cookson wrote: > > On 16/04/14 19:15, Steve Cookson wrote: >> For no good reason AFAICT the initial resolution is set to 320x240. But >>> you can just set it to 640x480 (or more likely, 720x480 for NTSC or >>> 720x576 for PAL): >>> >>> v4l2-ctl -v width=640,height=480 > Hi Guys, > > The attachments here are sent using tinypic.com. It's the first time > I've used it, so I hope it works OK. > > I'm using the qv4l utility, but I did try it on v4l2-ctl and gst-launch > and the results are the same as the one's I shall post here. > > Firstly, here is stk1160 s-video for a baseline comparison. Look at the > word "File" in the file menu: > > - http://tinypic.com/m/i50k8z/2 > > Now here is ImpactVCB-e composite. Again look at the word "File" in the > file menu: > > - http://tinypic.com/m/i50k8n/2 > > The quality is a little worse, but maybe that is just > Composite/S-Video. Composite is not working on my stk1160, so I can't > do a direct comparison. > > Now let's look at ImpactVCB-e s-video: > > - http://tinypic.com/m/i50k8w/2 > > It looks like every other line is missing. I'd guess it's 640x240. I've > tried v4l2-ctl -v width=640,height=480 etc, but no difference. > > You can see it too with images but it's just not so obvious as with text. > > Now when I switch back to ImpactVCB-e composite, I get the same problem, > but after a restart it goes away. > > What do you think? Looks like a driver bug to me. This driver needs some TLC, which I plan on giving, but I need to finish a bunch of other stuff first. Just use composite in the meantime. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
