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video capture H/W??

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  video capture H/W?? notbob <notbob@notbob.invalid> - 2011-05-27 21:07 +0000
    Re: video capture H/W?? Bill Marcum <bill@lat.localnet> - 2011-05-27 19:21 -0400
      Re: video capture H/W?? J G Miller <miller@yoyo.ORG> - 2011-05-28 14:32 +0000
        Re: video capture H/W?? ebenZEROONE@verizon.net (Hactar) - 2011-05-30 15:23 -0400
          Re: video capture H/W?? "Trevor Hemsley" <Trevor.Hemsley@mytrousers.ntlworld.com> - 2011-05-30 18:08 -0500
            Re: video capture H/W?? ebenZEROONE@verizon.net (Hactar) - 2011-05-30 19:20 -0400
              Re: video capture H/W?? J G Miller <miller@yoyo.ORG> - 2011-05-31 12:52 +0000
              Re: video capture H/W?? "Trevor Hemsley" <Trevor.Hemsley@mytrousers.ntlworld.com> - 2011-05-31 14:10 -0500
                Re: video capture H/W?? ebenZEROONE@verizon.net (Hactar) - 2011-06-01 00:32 -0400

#362 — video capture H/W??

I wanna set a video something up to monitor my mom with alzheimers.  I
understand the software, cameras, etc, but not about the compter hardware.
Do I have this capability?

My mom has a old Sony Vaio w/ Asus mobo and P4 cpu, running XP.  She
has a cheap USB logitek camera sitting above it (unconnected), but I
haven't a clue if the box has video capabilities.  If so, it would be
an integrated chip, as I see no card to speak of.  The box has a lotta
USB ports, 1.1, but I see no phono jacks.  I have Slackware 12.2 on it
and have the lshw appy installed to give me a detailed readout of what's
inside.  What would I be looking for?  I'm video illiterate and have
no clue!  ;)

Thnx
nb   

-- 
vi ...the root of evil

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#363

On 2011-05-27, notbob <notbob@notbob.invalid> wrote:
> I wanna set a video something up to monitor my mom with alzheimers.  I
> understand the software, cameras, etc, but not about the compter hardware.
> Do I have this capability?
>
> My mom has a old Sony Vaio w/ Asus mobo and P4 cpu, running XP.  She
> has a cheap USB logitek camera sitting above it (unconnected), but I
> haven't a clue if the box has video capabilities.  If so, it would be
> an integrated chip, as I see no card to speak of.  The box has a lotta
> USB ports, 1.1, but I see no phono jacks.  I have Slackware 12.2 on it
> and have the lshw appy installed to give me a detailed readout of what's
> inside.  What would I be looking for?  I'm video illiterate and have
> no clue!  ;)
>
With a USB camera, you don't need any additional hardware, except a
microphone if you want sound. You'd need a video capture card if you wanted
to hook up a camera with a composite video output.


-- 
Linux and Windows both win.
Best Documentary Feature: March of the Penguins
Best Picture: Crash

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#368

On Friday, May 27th, 2011 at 19:21:01h -0400, Bill Marcum explained:

> With a USB camera, you don't need any additional hardware, except a
> microphone if you want sound.

In fact quite a number of the higher end USB cameras actually have
an inbuilt microphone.

Also for those who have not heard about it, there is now a working
open source USB over IP client and daemon

     <http://sourceforge.NET/projects/usbip/>

So with adequate bandwidth, it should be possible to use cheese,
for example, to connect directly to a USB camera on a remote host.

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#377

In article <irr11h$ld9$1@dont-email.me>, J G Miller  <miller@yoyo.ORG> wrote:
> On Friday, May 27th, 2011 at 19:21:01h -0400, Bill Marcum explained:
> 
> > With a USB camera, you don't need any additional hardware, except a
> > microphone if you want sound.
> 
> In fact quite a number of the higher end USB cameras actually have
> an inbuilt microphone.
> 
> Also for those who have not heard about it, there is now a working
> open source USB over IP client and daemon
> 
>      <http://sourceforge.NET/projects/usbip/>
> 
> So with adequate bandwidth, it should be possible to use cheese,
> for example, to connect directly to a USB camera on a remote host.

USB 1.1 probably does not have adequate bandwidth.  Uncompressed 320x240
24-bit video at 15 fps is 320x240x24x15 bits/sec = 76800x360 b/s =
27648000 b/s = about 26 Mib/s.  USB 1.1 is (according to WP[1]) limited to
12 Mib/s.  So either it needs some heavy duty compression, or lesser
video, or you can get a USB card.

[1] http://en.wikipedia.org/wiki/USB_1.1#Signaling

-- 
-eben      QebWenE01R@vTerYizUonI.nOetP      royalty.mine.nu:81

Q: What did one photon say to the other photon?
A: I'm sick and tired of your interference. -- thebigmike1983 on Fark

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#379

On Mon, 30 May 2011 19:23:28 UTC in comp.os.linux.hardware, 
ebenZEROONE@verizon.net (Hactar) wrote:

> In article <irr11h$ld9$1@dont-email.me>, J G Miller  <miller@yoyo.ORG> wrote:
> > On Friday, May 27th, 2011 at 19:21:01h -0400, Bill Marcum explained:
> > 
> > > With a USB camera, you don't need any additional hardware, except a
> > > microphone if you want sound.
> > 
> > In fact quite a number of the higher end USB cameras actually have
> > an inbuilt microphone.
> > 
> > Also for those who have not heard about it, there is now a working
> > open source USB over IP client and daemon
> > 
> >      <http://sourceforge.NET/projects/usbip/>
> > 
> > So with adequate bandwidth, it should be possible to use cheese,
> > for example, to connect directly to a USB camera on a remote host.
> 
> USB 1.1 probably does not have adequate bandwidth.  Uncompressed 320x240
> 24-bit video at 15 fps is 320x240x24x15 bits/sec = 76800x360 b/s =
> 27648000 b/s = about 26 Mib/s.  USB 1.1 is (according to WP[1]) limited to
> 12 Mib/s.  So either it needs some heavy duty compression, or lesser
> video, or you can get a USB card.
> 
> [1] http://en.wikipedia.org/wiki/USB_1.1#Signaling

No idea what video format comes out of webcams but I've just been watching an 
avi file over the network on my media player box, pulling the file from an NFS 
share on linux and it's been playing 624x352 video @ 24 fps and the network 
monitor shows it peaking at 1.6Mbps.

-- 
Trevor Hemsley, Brighton, UK
Trevor dot Hemsley at ntlworld dot com

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#381

In article <gjxI70UYBlcC-pn2-BGnmrzLvDdYF@trevor2.dsl.pipex.com>,
Trevor Hemsley <Trevor.Hemsley@mytrousers.ntlworld.com> wrote:
> On Mon, 30 May 2011 19:23:28 UTC in comp.os.linux.hardware, 
> ebenZEROONE@verizon.net (Hactar) wrote:
> 
> > In article <irr11h$ld9$1@dont-email.me>, J G Miller  <miller@yoyo.ORG> wrote:
> > > On Friday, May 27th, 2011 at 19:21:01h -0400, Bill Marcum explained:
> > > 
> > > > With a USB camera, you don't need any additional hardware, except a
> > > > microphone if you want sound.
> > > 
> > > In fact quite a number of the higher end USB cameras actually have
> > > an inbuilt microphone.
> > > 
> > > Also for those who have not heard about it, there is now a working
> > > open source USB over IP client and daemon
> > > 
> > >      <http://sourceforge.NET/projects/usbip/>
> > > 
> > > So with adequate bandwidth, it should be possible to use cheese,
> > > for example, to connect directly to a USB camera on a remote host.
> > 
> > USB 1.1 probably does not have adequate bandwidth.  Uncompressed 320x240
> > 24-bit video at 15 fps is 320x240x24x15 bits/sec = 76800x360 b/s =
> > 27648000 b/s = about 26 Mib/s.  USB 1.1 is (according to WP[1]) limited to
> > 12 Mib/s.  So either it needs some heavy duty compression, or lesser
> > video, or you can get a USB card.
> > 
> > [1] http://en.wikipedia.org/wiki/USB_1.1#Signaling
> 
> No idea what video format comes out of webcams but I've just been watching an 
> avi file over the network on my media player box, pulling the file from an NFS 
> share on linux and it's been playing 624x352 video @ 24 fps and the network 
> monitor shows it peaking at 1.6Mbps.

Fair enough.  12 Mib/s = 1.5 MiB/s, so drop it to 15 or 20 fps and it
might fit in USB 1.1.

-- 
There's a term for those who fantasize that the world works in
precisely the way that produces maximum convenience for them,
despite years of evidence to the contrary.  The term is "Morons".
          GA in <fp0m8j$lb0$1@reader2.panix.com>

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#383

On Mon, 30 May 2011 19:20:23 -0400, Hactar wrote:

> In article <gjxI70UYBlcC-pn2-BGnmrzLvDdYF@trevor2.dsl.pipex.com>, Trevor
> Hemsley <Trevor.Hemsley@mytrousers.ntlworld.com> wrote:
>> On Mon, 30 May 2011 19:23:28 UTC in comp.os.linux.hardware,
>> ebenZEROONE@verizon.net (Hactar) wrote:
>> 
>> No idea what video format comes out of webcams but I've just been
>> watching an avi file over the network on my media player box, pulling
>> the file from an NFS share on linux and it's been playing 624x352 video
>> @ 24 fps and the network monitor shows it peaking at 1.6Mbps.
> 
> Fair enough.  12 Mib/s = 1.5 MiB/s, so drop it to 15 or 20 fps and it
> might fit in USB 1.1.

And with USB 3.0, even higher quality full HD video is possible.

<http://www.electronista.COM/articles/09/09/17/camera.sends.uncompressed.1080p.stream.at.60fps/>

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#384

On Mon, 30 May 2011 23:20:23 UTC in comp.os.linux.hardware, 
ebenZEROONE@verizon.net (Hactar) wrote:

>> No idea what video format comes out of webcams but I've just been watching an

>> avi file over the network on my media player box, pulling the file from an 
NFS 
>> share on linux and it's been playing 624x352 video @ 24 fps and the network 
>> monitor shows it peaking at 1.6Mbps.
>
> Fair enough.  12 Mib/s = 1.5 MiB/s, so drop it to 15 or 20 fps and it
> might fit in USB 1.1.

No, 1.6Mbps not 1.6MBps.

-- 
Trevor Hemsley, Brighton, UK
Trevor dot Hemsley at ntlworld dot com

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#386

In article <gjxI70UYBlcC-pn2-OC3JsXdKnn5d@trevor2.dsl.pipex.com>,
Trevor Hemsley <Trevor.Hemsley@mytrousers.ntlworld.com> wrote:
> On Mon, 30 May 2011 23:20:23 UTC in comp.os.linux.hardware, 
> ebenZEROONE@verizon.net (Hactar) wrote:
> 
> >> No idea what video format comes out of webcams but I've just been watching an
> 
> >> avi file over the network on my media player box, pulling the file from an 
> NFS 
> >> share on linux and it's been playing 624x352 video @ 24 fps and the network 
> >> monitor shows it peaking at 1.6Mbps.
> >
> > Fair enough.  12 Mib/s = 1.5 MiB/s, so drop it to 15 or 20 fps and it
> > might fit in USB 1.1.
> 
> No, 1.6Mbps not 1.6MBps.

So it is.  I didn't see that.  Carry on.

-- 
A well-lovd and corrctly traind domstc cnine is gnrlly slobbry, excitbl,
noisy, scatologically obsessed, xenophobic, pathetically unjudgmental,
embrrssngly uninhbtd, unreasnngly dvtd, hrtbrkngly dpndnt and wretchedly
craven.  All othr knds of dog cmpre unfvrbly wth ths picture. - PB, AFCA

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