fatherdougal wrote:Thanks. The general consensus is to avoid thunderbolt then I guess. That's a shame - I was hoping for a single box (ie single computer) solution. Does anyone else have experience with thunderbolt?

mcdikki wrote:No, with the 4k, you can use casparCG at the end of your workflow as explained. No need for an extra input.
There are 3 general workflows possible with casparCG and video inputs:

1. The normal way with separate key+fill (needs one decklink 4k and one other sdi input):
SDI Input --> casparCG --> SDI outup via Decklink 4k as 2xSDI (1x FILL, 1x KEY) --> Vision Mixer
=> The vision mixer will composite the input from casparCG onto a background itself with the key and fill signal from casparCG

2. CasparCG as Keyer (needs 2x SDI cards, one for input, one for output):
SDI Input (prg.out of a mixer or a cam) --> CasparCG --> SDI Output
=> CasparCG plays and overlays everthing and only provides a new prg-out. This will add ~7frames of delay for processing.

3. CasparCG with Decklink 4k as keyer (Only the 4k Card is needed):
SDI Input to 4k Input (prg out or cam...) --> CasparCG --> SDI output of 4k card (prg out)
=> CasparCG plays all the overlays, the compostiting is done by the hardware keyer of the decklink 4k card.
This add ~1frame of delay and only works with the decklink 4k and 3d extrem cards in hd and decklink studio in sd)

Cheers
mcdikki

Ultravibe wrote:And what about second question: it can be only sdi or something else?

Ultravibe wrote: Mcdiki, can you write down the commands that performs the THIRD way of workflow? I have 4k extreme and very interesting of this mode!!!

<channels>
  <channel>
    <video-mode>720p5000</video-mode>
    <consumers>
      <decklink>
        <device>1</device>
        <keyer>internal</keyer>
        <key-only>false</key-only>
      </decklink>
    </consumers>
  </channel>
</channels>

didikunz wrote:

Ultravibe wrote:And what about second question: it can be only sdi or something else?

According to other users, who tried it, it must be SDI, there is a problem with HDMI.

Ultravibe wrote:Imorrish, great! Thank you! And what about AMCP commands: is it correct to use such command

Code: Select all

PLAY 1-1 DECKLINK 1

after Caspar is loaded with your configuration?
I mean that first (and only one))) Decklink device (producer) plays through the first Decklink device (consumer)?
Will it works with 1 fr delay and will it works generally? How I believe this IS the duplex mode that featured with 4k extreme? Or am I wrong?

mcdikki wrote:Hi laroca,

you need to setup your caspar.config right.
There is no need for two channels to output fill+key.

Under the channel node consumer section, add the decklink consumer and set the <keyer> tag to separate external device and set the keyerdevice and it should work.

Code: Select all

...
<device>1</device>
<keyer>external_separate_device</keyer>
<key-device>device + 1</key-device>
...

And by the way, the new recommendation for the best card to do key and fill is the new decklink quad 2.
It can handle up to 4 channels of key+fill in full hd (1080) for the price of a 4k extreme ;-)
So, the 4k extreme is only interesting if you need 4k or 3d.

Cheers
mcdikki

jladnil wrote:Can anyone confirm if Decklink HD Extreme 3 (Not Decklink HD Extreme 3d) work with Casparcg with key+fill ??? I am planning to pick a used one

jladnil wrote:Can anyone confirm if Decklink HD Extreme 3 (Not Decklink HD Extreme 3d) work with Casparcg with key+fill ??? I am planning to pick a used one

pdl2k wrote:Hello! Has anyone tried these external cards to live stream and insert graphics?
These works for keying?
Intensity Shuttle for USB 3.0
UltraStudio Express