Question / Help Streaming video from two cameras at once with OBS

[ExtraLevel]

Hello,

We will be live streaming an event on YouTube and are in need of simple live mixing with two active video sources. We have two Panasonic DMC-FZ1000 cameras and are now looking for one or two capture cards to buy. We've tried using one of our cameras with an Elgato Gaming HD60 S to stream on YouTube before and it worked fine, so the cameras should work fine with live streaming.

What do you think would be the best solution for this?

We are thinking of buying a Magewell Pro Capture Dual HDMI card and install it on our PC. Does anyone know if OBS Studio can use both of the HDMI inputs at the same time, as two different sources / video capture devices?

Thanks in advance for the help.

 

[Harold]

I can confirm that the blackmagic decklink duo2 (approx 500 us, 4 input) and quad2 (approx 1000 us, 8 input) cards would definitely work for what you want to do. You'd need HDMI to SDI converters (approx $40 each) to connect HDMI cameras.
The magewell dual hdmi should show up as 2 separate capture devices.

 

[Boildown]

Do you intend to capture video at the 4K resolution that camera supports? How are you doing audio? What computer are you using... does it have a good selection of PCIe card slots?

 

[ExtraLevel]

Thank you very much for the help.

Do you intend to capture video at the 4K resolution that camera supports? How are you doing audio? What computer are you using... does it have a good selection of PCIe card slots?

We intend to stream at 1080p. As far as I know, those Magewell cards do not support 4K and that is not something we need for a stream anyways.

The audio should be transmitted through HDMI, right? One of the cameras will have a Røde Link RX-CAM receiver connected to a TX-BELT transmitter with a microphone, placed nearby the person that is talking. The second camera will have another external microhpone from which the audio might only be needed sometimes when questions are asked by the audience. We are not going to run sound from both mics at the same time.

I can't remember most of the specs right now but it's a PC that we use both for gaming with very high/ultra settings and also for editing and rendering our 4K-videos, so it is quite powerful and it feels like it should be able to handle a stream like that without any trouble at all. If there is some special part of the specs that is very important then I'll check the specs when I have access to the PC later. We've got both Windows 10 and 8.1 installed on the PC so we can use whatever works best with the card and OBS.

Regarding PCIe card slots, there are several free ones available so that should not be an issue.

 

[Boildown]

I don't know if those cameras are able to embed audio into their HDMI out. You should probably test that, not all capture cards do audio over HDMI.

I was mainly checking that you weren't going to use a laptop and USB for your capture card. PCIe is far better. Sounds like that's your plan anyways, so that's good. And since you're doing 1080p instead of 4K, that makes things easier as well.

Sounds like something like this then: http://www.magewell.com/pro-capture-dual-hdmi
Which is what you mentioned in your OP (get the PCIe version, not the USB). Don't have one so I can't tell you how well it works or about using both inputs at once in OBS. Anecdotally, I think it works, from what I've read.

Its pricey though. I like finding deals on ebay, but no capture cards I see today can do audio over hdmi, you'd have to route the audio separately.

 

[Ninjjadog]

Hi, sorry to jump on this post but you were talking about the fz1000 and I need same sort of help. I have Fz1000, a laptop, a HDMI to HDMI and video capture card. I am just getting a rainbow signal in OBS. Can I do this with this camera? I only want to record the video into OBS. I know how to sort audio, and only need the video recording. Thanks for any help.