I can't think of a reason why it wont work. The best way to capture HDMI is via a capture device. A lot of people are using these:
Blackmagic Design UltraStudio Mini Recorder
Friends,
TL;DR: does anyone have the time and inclination and skill to port AtemOSC to Windows?
https://github.com/SteffeyDev/...
Longer version:
I have a Blackmagic Atem Mini Pro. It connects to the computer via USB (and, optionally, ethernet). Isadora sees it as a webcam, yet you can switch between four different inputs. The Atem reclocks all the inputs so switching between sources is seamless. In that respect it's a big improvement on my current method, which is a Kramer switcher which I can automate from within Isadora via TCP/IP commands. I take the HDMI output into Isadora via BM UltraStudio Recorder 3G. But it's a clunky solution, and there's a visible pause if I switch between sources that don't match or have dodgy interpretations of the HDMI protocol, yes, GoPro, I'm looking at you. Using the ATEM Mini as an input device works much better. However, I can't control the Atem from within Isadora easily because, yes, I'm using Windows. Mac users can do this with ease, using AtemOSC. Windows users have to take more circuitous routes.
If only AtemOSC worked on Windows...
Looking at the Github repository, and reading the discussions, it looks like it ought to be possible, but I don't have the programming chops (or any programming skills at all ) or I'd do it myself, hence asking if there's anyone with the time and inclination.
@eMTv said: "about the Sony camera with proper nightshot mode : would a still camera be ok ? like an old DSC-F717 for instance, with a/v connection to the intensity shuttle to input the live feed into my computer ?"
@Woland said: "My notes say "Use an IR B&W security camera or a Sony Nightshot camera. Sony owned the IR Nightshot patent so the camera HAS to be a cheap Sony SD camera for this to work or a good quality B&W security camera."
I got the SONY part, no problem. I was only questioning here the possibility of using the live feed of a Sony DSC-series still camera with nightshot mode (plugged in through the capture card) as opposed to a Sony DCR-series camcorder.. Guess I'll give it a try anyway, since I've been successfully using live input from a Canon still camcorder that way in other circumstances...
@eMTv said: "about the additional IR filter that @mark talks quickly about in the tutorial, mentioning Lee 87 reference, which will only fit on the Lee 100 filter system whereas ideally I'd like to use a Hoya R72 or SRB Photographic IR720 filter that can be found in various diameters, and therefore fit directly on the camera lens, so I'm wondering if any of you would have some user experience to share about this ? (both references block all visible light below 720nm, when Lee 87 blocks visible light below 730 nanometres. I'm wondering if these 10nm make such a big difference ?"
@Woland said: "In relation to the IR filter for the camera, my notes say that one should add a Lee 73 (IR filter) gel over the camera.</p><p>I can't share much in the way of recent experience because it's been a few years since I've done this, but my notes about creating an IR source say that you can use ETC Source 4 ERS's (Profiles/Leekos) as with R19 (x2) + R81 (x1) + R90 (x1), but to make sure that you have lots of extra cuts around to replace them when they get melted, and to never bring the lighting instruments with these gel combinations above 50% intensity otherwise you're guaranteed to melt the gels. My notes also say "This is a fire hazard! Always check the gels often for heat damage and replace as needed. Alternatively buy or rent SPECIALIST IR LED lights instead."
We'll experiment with the gels sandwich (with great care not to go above 50% intensity !) as well as with IR LED lights, so I'll be able to share my own experience soon, as far as the IR lighting is concerned.
Regarding the IR filter / gel over the camera lens, I can't find anything online about a "73" Lee filter, whereas the "87" reference given by @mark is all over the place ?
@eMTv said: "we might want to acquire several video feeds on the same computer (at least 2 : the IR one for tracking purposes + a regular live video feed from another camera operated on-stage). any advice on the right video capture card to do that ?"
@Woland said: "The Blackmagic ultrastudio mini recorder is one I've used extensively for productions in the past; they've been solid for me (once you figure out the right settings and leave them like that). If you end up using an analog B+W security camera, you'll need an analog-to-digital-convertor (often called "ADVC") in order to get the analog signal from the camera and get it into your computer as a digital signal. I've seen Canopus ones used a while ago, but I'm sure that Blackmagic makes something that can handle this as well.</p>
Will get started with the Blackmagic Design Intensity Shuttle via thunderbolt, since it can be fed any kind of video signal (RCA, S-Video, HDMI, etc). I'm alkso getting a batch of security cameras for testing purposes, along with the Floureon 8 CH AHD 1080N Digital Video Recorder that outputs HDMI.
I also got my hand on a Panasonic WV-BP120 surveillance cam... So, once again if anyone has got some proper tutorials or technical tips on the removal of the IR filter in front of the sensor of this one, please shoot !
@eMTv said: "2x MSI GEFORCE GTX 1060 GAMING X 3G video cards and would be glad to have any advice on these"
@Woland said: "Isadora does not support the use of multiple graphics cards, so be careful."
Thanks for the advice. The dual graphic cards setup was needed in another project (running on some other software) with this same company, in order to have 4 video outputs running simultaneously (+ a fifth one for the computer screen), but we should not need that many in this one, hopefully !
Thanks a lot @Woland for your elaborate reply !
I use an Ultrastudio Mini Recorder for capture. it has both SDI and HDMI inputs - switchable using the Blackmagic Video Utility.
If it's the ultrastudio mini recorder they generally default to 59.94 (if I recall correctly). Select that in Live Capture and you should see an image.
I'm sorry to say that it's an output...
You can capture HDMI with a blackmagic intensity shuttle or cheaper, a BlackMagic ultrastudio mini recorder.
These are the cheapest solutions I know..
Best
Philippe
It would be possible with a capture device such as the BlackMagic Ultrastudio Mini Recorder. Isadora can access the BlackMagic drivers directly from within the Live Capture settings page.
Thanks for all replies! I'll try them.
Just asking, how process intensive would these methods be – compared to having the video signal just via UltraStudio Mini Recorder? Would these methods slow down the processing?
Want to get high-quality CCTV camera into the PC.
So SDI CCTV camera ->Blackmagic design ultrastudio mini recorder -> Gigabyte (Alpine Ridge Thunderbolt 3 PCIe Card) do you think?