Re: Video capture device

[Jorge Cabrera <jorge.cabrera@andago.com>]

Roger Oberholtzer wrote:
> On Fri, 2010-09-10 at 14:50 +0200, Jorge Cabrera wrote:
>   
>> Roger Oberholtzer wrote: 
>>     
>>> On Fri, 2010-09-10 at 13:56 +0200, Jorge Cabrera wrote:
>>>   
>>>       
>>>> Roger Oberholtzer wrote: 
>>>>     
>>>>         
>>>>> On Fri, 2010-09-10 at 13:30 +0200, Jorge Cabrera wrote:
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>>>> Thanks for your reply and your advice Roger. Problem is that using a
>>>>>> webcam is not an option right now because the solution that we have to
>>>>>> provide is by using a usb video capture device connected to a camera.
>>>>>> Have anyone tried one of those with linux?
>>>>>>     
>>>>>>         
>>>>>>             
>>>>> You mean that you have something like a Dazzle video capture device
>>>>> connected to the USB and a camera attached to that? What usb capture
>>>>> device are you using? Many are supported. But not all of them.
>>>>>
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>> Yes exactly, I'm using Avermedia EZMaker USB Gold
>>>> (http://tienda.avermedia.es/product.aspx?productid=81126). The device
>>>> have linux drivers and it seem to work ok but I'm having the problems
>>>> I mentioned before.
>>>>     
>>>>         
>>> I use v4lctl to configure devices. The configurations stay until the
>>> devices are repowered. Have you tried this?
>>>
>>>
>>>   
>>>       
>> Yes, I tried that and v4l2ctl too but some programs like mplayer read
>> the configuration change but cheese for example or flash didn't. I
>> would change the default input from tuner (the default) to s-video or
>> any other kind and nothing.
>>     
>
> Hmm. It is not a matter of the program reading your changes. They are
> set in the driver. If they are not used, it is because flash is actively
> setting a different value from what the driver had when flash started.
> This means that flash must have it's own way of specifying these
> settings. flash really is crappy...
>
> Perhaps one hack would be to recompile the driver with the defaults you
> need. But I suspect even that would fail as it seems flash actively sets
> the values. You might try removing from the driver the options you do
> not want so they are not available to flash. But I bet flash has some
> assumptions that expect these settings, and it would fail if they are
> not present.
>
> I don't think I can offer more.
>   
Well, it's weird because I already tried recompiling the driver but 
there was no option for changing the default input there. We started to 
think here that it is somehow the way the device is supposed to work. 
That's why I was thinking of trying with another device. But I'm afraid 
that I'll end up facing the same problems.

Thanks a lot for your help Roger and have a good weekend
>> -- 
>> Jorge Cabrera
>> Ándago Ingeniería - www.andago.com
>>
>> Teléfono: +34 916 011 373
>> Móvil: +34 637 741 034
>> e-mail: jorge.cabrera@andago.com
>>
>> C/Alcalde Ángel Arroyo n.º10 1.ªPl. (28904) Getafe, Madrid
>>     
>
>   


-- 
Jorge Cabrera
Ándago Ingeniería - www.andago.com

Teléfono: +34 916 011 373
Móvil: +34 637 741 034
e-mail: jorge.cabrera@andago.com

C/Alcalde Ángel Arroyo n.º10 1.ªPl. (28904) Getafe, Madrid

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