Brian Keener wrote:
> On 4/10/06, Ross <[EMAIL PROTECTED]> wrote:
> 
>>On 4/10/06, Brian Keener <[EMAIL PROTECTED]> wrote:
>>
>>>On 4/9/06, Paul V. Gratz <[EMAIL PROTECTED]> wrote:
>>>
>>>
>>>>Just out of curiosity, do you think this would be possible by
>>>>capturing the "raw" non-encoded video and passing it directly to the
>>>>video card?  I understand these cards are capable of doing that.
>>>>Paul
>>>
>>> That's quite possible.
>>>
>>> All I know is that when I had it running under Windows, you could get
>>
>>live
>>
>>>video out of it.
>>>
>>> I think it had to be done via a third party tweak, but still...
>>
>>If you want the uncompressed stream, use the YUV device (should be
>>/dev/video32, but check using ivtv-detect). I think there is still a
>>small amount of latency, but have a look at the archives as it's been
>>discussed a few times before. IMHO, it defeats the purpose of having a
>>hardware encorder and you'd be better off with a bttv card.
>>
>>Cheers,
>>
>>Ross
>>
>>
> 
> Is /dev/video32 a YUV device?  The archives all seem to indicate that
> /dev/video32 is in some HMI format that only mplayer can play, and the
> previous couple of times I've tried to utilize it I got an extremely garbled
> output and no sound, even though the mpeg capture worked fine.
> 
> As it is, I've got a bttv card installed as well, but this motherboard only
> has three PCI slots and I hate to take two of those with video capture
> cards.
> 
> Brian K

 From /usr/share/doc/ivtv-0.6.1/README.devices:
...
/dev/video32
The raw video capture device(s)
Read-only

The raw YUV video output from the current video input. The YUV format
is non-standard (HME12?) but with the yuv-fixup=1 ivtv module option it
is converted to standard YUV format.
...

Never tried this, but ...

Regards, Bob

-- 
  Bob Marcan, Consultant                mailto:[EMAIL PROTECTED]
  S&T Hermes Plus d.d.                  tel:   +386 (1) 5895-300
  Leskoskova cesta 6                    fax:   +386 (1) 5895-202
  1000 Ljubljana, Slovenia              url:   http://www.snt.si


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