| Sysop: | Amessyroom |
|---|---|
| Location: | Fayetteville, NC |
| Users: | 43 |
| Nodes: | 6 (0 / 6) |
| Uptime: | 97:20:07 |
| Calls: | 290 |
| Files: | 904 |
| Messages: | 76,468 |
Davey <davey@example.invalid> wrote:
I cannot find any suitable BNC-input USB video cards. Plenty of HDMI
and others, such as network, but not BNC. If you know of any, please
send me a link.
If it's composite video, you just need a BNC to phono (RCA) adapter: https://www.amazon.co.uk/10-BNC-Female-RCA-Adapter/dp/B013GKEYCU/
Then plug into a 'USB video capture' box with 'RCA' inputs.
Definitely not a recommendation, but this kind of thing: https://www.amazon.co.uk/HENGBIRD-Grabber-Capture-Converter-Digitize/dp/B0CMGZTZH1/
Software wise it would pay to search for one with Linux support - the
one I have (branded 'EasyCAP') works with Linux but it's old and I'm
not clear on the current market. Linux TV has info, under analog
devices:
https://www.linuxtv.org/wiki/index.php/Hardware_device_information
It often pays to look for reviews or text which says what chip is
inside, as the cheap brand names change like the wind. Be prepared to
return if you can't make it work under Linux.
Theo
Davey <davey@example.invalid> wrote:
I cannot find any suitable BNC-input USB video cards. Plenty of HDMI
and others, such as network, but not BNC. If you know of any, please
send me a link.
If it's composite video, you just need a BNC to phono (RCA) adapter: https://www.amazon.co.uk/10-BNC-Female-RCA-Adapter/dp/B013GKEYCU/
Then plug into a 'USB video capture' box with 'RCA' inputs.
Definitely not a recommendation, but this kind of thing: https://www.amazon.co.uk/HENGBIRD-Grabber-Capture-Converter-Digitize/dp/B0CMGZTZH1/
Software wise it would pay to search for one with Linux support - the
one I have (branded 'EasyCAP') works with Linux but it's old and I'm
not clear on the current market. Linux TV has info, under analog
devices:
https://www.linuxtv.org/wiki/index.php/Hardware_device_information
It often pays to look for reviews or text which says what chip is
inside, as the cheap brand names change like the wind. Be prepared to
return if you can't make it work under Linux.
Theo
On 14 Sep 2024 09:28:30 +0100 (BST)
Theo <theom+news@chiark.greenend.org.uk> wrote:
Davey <davey@example.invalid> wrote:
I cannot find any suitable BNC-input USB video cards. Plenty of
HDMI and others, such as network, but not BNC. If you know of
any, please send me a link.
If it's composite video, you just need a BNC to phono (RCA) adapter: https://www.amazon.co.uk/10-BNC-Female-RCA-Adapter/dp/B013GKEYCU/
Then plug into a 'USB video capture' box with 'RCA' inputs.
Definitely not a recommendation, but this kind of thing: https://www.amazon.co.uk/HENGBIRD-Grabber-Capture-Converter-Digitize/dp/B0CMGZTZH1/
Software wise it would pay to search for one with Linux support -
the one I have (branded 'EasyCAP') works with Linux but it's old
and I'm not clear on the current market. Linux TV has info, under
analog devices: https://www.linuxtv.org/wiki/index.php/Hardware_device_information
It often pays to look for reviews or text which says what chip is
inside, as the cheap brand names change like the wind. Be prepared
to return if you can't make it work under Linux.
Theo
Another thought:
Since the current PCI card works fine, I am going to see if I can find
a refurbished PC, which I would not normally look at, to see if I can
find a refurbished PCI slot-equipped machine.
No cost of a £200-plus PCIe card, a cheaper PC than a new one.
Thoughts?
I am going to see if I can find a refurbished PC, which I would not
normally look at, to see if I can find a refurbished PCI slot-
equipped machine.
Davey wrote:
I am going to see if I can find a refurbished PC, which I would not normally look at, to see if I can find a refurbished PCI slot-
equipped machine.
Or a PCIe to PCI riser?
Davey <davey@example.invalid> wrote:
Called a " a PCI to PCIe adaptor card" by me at 10:25? The same
thing, just different names. Although I agree that putting 'PCIe"
before "PCI" is a more logical construction. Whatever we call it,
it looks like the way to go, in my situation.
I don't like refurbished PCs, anyway.
You may have a problem with mounting - the adapter card adds maybe
1-1.5" to the height of your card. Depends on how tall your PCI card
is. You'll probably need to take the backplate off, but it may be
short enough to fit in a full height PCIe slot.
If this is problematic you can get PCIe 'riser' cables. Random
example: https://www.amazon.co.uk/GLOTRENDS-Riser-Function-Features-Degree-Black/dp/B0CHRZQNRK/
(various lengths and x1 / x4 / x8 / x16 available, many different
designs)
and then mount the card elsewhere in the case.
If you're buying a new PC anyway there are a few mobos with native
PCI slots: https://uk.pcpartpicker.com/products/motherboard/#d=1,6&sort=price&page=1
Most of them are for old CPUs, but those with AM4, AM5, LGA1200 or
LGA1700 CPU sockets are fairly modern: https://uk.pcpartpicker.com/products/motherboard/#d=1,6&sort=price&s=33,41,39,40
Theo
Called a " a PCI to PCIe adaptor card" by me at 10:25? The same thing,
just different names. Although I agree that putting 'PCIe" before
"PCI" is a more logical construction. Whatever we call it, it looks like
the way to go, in my situation.
I don't like refurbished PCs, anyway.
You may have a problem with mounting - the adapter card adds maybe 1-1.5" to the height of your card. Depends on how tall your PCI card is.
On 15 Sep 2024 14:47:18 +0100 (BST)
Theo <theom+news@chiark.greenend.org.uk> wrote:
Davey <davey@example.invalid> wrote:
Called a " a PCI to PCIe adaptor card" by me at 10:25? The same
thing, just different names. Although I agree that putting 'PCIe"
before "PCI" is a more logical construction. Whatever we call it,
it looks like the way to go, in my situation.
I don't like refurbished PCs, anyway.
You may have a problem with mounting - the adapter card adds maybe
1-1.5" to the height of your card. Depends on how tall your PCI
card is. You'll probably need to take the backplate off, but it
may be short enough to fit in a full height PCIe slot.
If this is problematic you can get PCIe 'riser' cables. Random
example: https://www.amazon.co.uk/GLOTRENDS-Riser-Function-Features-Degree-Black/dp/B0CHRZQNRK/
(various lengths and x1 / x4 / x8 / x16 available, many different
designs)
and then mount the card elsewhere in the case.
If you're buying a new PC anyway there are a few mobos with native
PCI slots: https://uk.pcpartpicker.com/products/motherboard/#d=1,6&sort=price&page=1
Most of them are for old CPUs, but those with AM4, AM5, LGA1200 or
LGA1700 CPU sockets are fairly modern: https://uk.pcpartpicker.com/products/motherboard/#d=1,6&sort=price&s=33,41,39,40
Theo
Thanks. I will probably get the PC first, and then I can look inside
and see what space there is, and therefore what I need to get to a
PCI slot. Luckily, my existing system is still working, so it is not
urgent. I will continue to report progress.
I'm sort of lost here, any help welcome.
Davey <davey@example.invalid> wrote:
I'm sort of lost here, any help welcome.
Have a look at USB adapters. SD video is not that high bit rate,
especially if the adapter is compressing. No idea of the marketplace, although I have a $7 composite video USB capture that's probably
awful. BNC is just composite video I think - do they power from there
or external power?
If you have a lot of USB devices consider extra USB PCIe cards, but 4
behind a USB 3 hub is probably ok.
Theo
On 13 Sep 2024 20:19:28 +0100 (BST)
Theo <theom+news@chiark.greenend.org.uk> wrote:
Davey <davey@example.invalid> wrote:
I'm sort of lost here, any help welcome.
Have a look at USB adapters. SD video is not that high bit rate,
especially if the adapter is compressing. No idea of the
marketplace, although I have a $7 composite video USB capture
that's probably awful. BNC is just composite video I think - do
they power from there or external power?
If you have a lot of USB devices consider extra USB PCIe cards, but
4 behind a USB 3 hub is probably ok.
Theo
Hmm. Since this will be a new installation, there will be little other
demand on any resources.
I am looking for something that will accept the BNC plugs coming from
the cameras.
I have not heard of USB devices that can do this, I will look.
And the cameras are all powered from a separate 12v PSU, which splits
to feed all the cameras. The standard camera cable has: Power, Video
signal, Audio signal (if available).
Thanks for the thoughts, I will report progress, if any.
I cannot find any suitable BNC-input USB video cards. Plenty of HDMI
and others, such as network, but not BNC. If you know of any, please
send me a link.