Hdmi Video Capture Device Software

[Joke Grinman]

Iam trying to capture video from a second PC to display as content on a host pc running the meeting. Issue is - the second PC is a locked down workstation without ability to install software or change display settings.

In the list of "approved" video capture devices, all of them are single pass-through devices that do not allow loop monitor connections (and are HDMI/DVI only, no DP). This feature is standard on pretty much any other product like Elgato, Hauppauge, etc. Is it really true that all other capture cards outside the zoom provided list will only show up as a camera feed and not as a second screen share option?

For HDMI, I sometimes come out of one computer into an active 1:2 splitter, then take one output from the splitter to the existing monitor, then the second output to an HDMI capture device on the second computer - using something like a Camlink.

But - if you're computer one IS locked down to prevent external hardware for a reason, you may want to consider whether doing what you are trying to do is conflicting with whatever policies apply to you.

The workstation was provided to us by an outside vendor. This console is meant to use the program that auto-launches on boot, with the OS locked down. We currently share the contents of the screen in our meetings via a webcam looking at it, but it's abysmal. There's nothing policy-violating we are doing, just wanted to show our screen with better clarity and resolution.

I am new to Livestreaming for our church. We have been using a single webcam to livestream to facebook. I have been tasked with adding more cameras and using Livestream Studio. We have a Vixia HF G20 that the church has used for recording sermons. We recently purchased the Blackmagic Intensity Shuttle USB 3.0. We have a Macbook Pro running Catalina.

I plug the capture device into the Mac and see that it is connected. When I plug in the G20, I still have a black screen. I know that I need to make all settings the same for the frame rate and video quality on the G20, the capture device (Desktop Video 11.7), and the capture software (Media Express 2). The capture device does not capture a frame rate of 60. I do not believe it will capture 1080P but will capture 1080i.

If anyone has had success with the G20 on the Intensity Shuttle for USB3.0, can you let me know that I am not wasting my time and it can actually work? I have spent MANY hours changing settings and don't want to waste more, if I just need to get another capture device.

Normally I use the Movie File Out TOP indeed, but now for the first time, my network became too complex and heavy for my laptop to record and run real-time, with Ableton in the background (TD Ableton). Whenever I start the recording I get sudden massive frame drops. Another option is to maybe pre render some footage, but that will eliminate the purpose of Touchdesigner and being able to edit the project real-time.

I think it is the capture because Vimeo is usually pretty clean. It looks like compression artifacts - a bit blocky. But at least you get a recording of a busy heavy network you might not get using movieFileout TOP. Worth a try at least - fool around with various settings to try and minimize noise. This assumes you have a second computer to do the recording of course. My Mac Air M1 did a pretty good job. Good luck with your testing!

So giving that job of recording screen capture to something else, whether external hardware or software on the machine makes sense. I would definitely try OBS before buying Elgato or any other external capture device.

But the other thing I would encourage you to do is really look hard at your network and try to optimize it very carefully. You might just solve your problem of dropped fps. Have you read this one carefully on forum?

Also, like I said I find the PROBE from palette super helpful in identifying the hogs in cook time. Maybe if you optimize more, you can go back to simply using Movie File Out.

Anyway, good luck and if you do get Elgato let us know how the single computer solution works out.

Certain models of the external capture devices do their own encoding on-device so there is less impact on the GPU. But you need to read the spec carefully as some models use the system (seems more of the newer models do this). I was referring to devices that do all the work on the capture device itself.

If you are using OBS, its on the system, and in that case I would fully recommend the Movie File Out TOP instead. In all cases you are doing GPU compressed codecs if you want to do it in real-time, and therefore need Nvidia GPU as a system requirement as well.

Hello,

If I need an external capture of hdmi output, I prefere to use my Blackmagic Video assist (old HD one). No computer problems, clean proRes or DnxHd file on sd card and you have an output to plug your screen.

Jacques

Question: If I obtained a HDMI stremaing capture device (like an Elgato or Avermedia USB capture device or card), ad run the HDMI from the GOpro into the capture device - can I then record directly from it into Premiere Pro?

Yesterday I installed a Blackmagic decklink 4k card in my edit computer (pci-e slot ) which has SDI in and out. I will eventually put hdmi signal from BMPCC or Nikon d800 into that card, to see if I can 'view' the image live from a field monitor output (also SDI). Ideally, I'd like to go through resolve to add luts or grades, and maybe even key stuff ( 2 signals in, one being alpha ). I have no clue what will happen.

Ordered hdmi to SDI converter, so when it comes I can hook the stuff up. See what happens. I have NO desire to capture with the computer at all, as I use Atomos and pass through hdmi while recording to SSD the intermediate codec (higher bit rate than SD card h264 4.2.0 stuff ). Becomes 4.2.2 space to SSD, and I just dump that into computer for editing.

In Amazon reviews of cheaper Chinese models, I saw several complains about these devices getting hot (as in, too hot to touch). I captured video with the Old Skool device for over an hour and did not detect any significant heat. While slightly warm to the touch, I have several USB sticks that get much hotter under normal use.

For a second test, I paired the AV adapter with the HDMI capture card. I ended up with the same results in OBS Studio: distorted vertical bands running through the screen, and a stretched picture. I could not find a way to resize the video source in OBS.

Wired HDMI screen sharing is a one-plug method to share content from a laptop or mobile device to a Zoom Room. This method uses an HDMI-USB capture card peripheral connected to the Zoom Room to capture HDMI output from another device, such as a laptop. The capture card accepts HDMI on its input, and outputs to the Zoom Room using USB. The laptop OS can use mirror or extend display mode to output to the capture card. The Zoom Room can also accept audio, if supported by the capture card, which generally requires the laptop OS to be configured to output audio via its HDMI output. Alternatively, you can also use wireless direct sharing, share.zoom.us, or Airplay to share content from your laptop or mobile device to a Zoom Room.

Note: Annotation is available on systems running an Intel 8th generation processor or higher. If your system does not meet the requirement, please consider using direct sharing when annotation is needed.

Zoom Rooms only support the connection, presence, and use of one HDMI-USB capture device from the supported list of devices at a time. Do not connect more than one device from the supported list simultaneously, as this will cause unpredictable results. If you wish to have the ability to connect multiple different devices with HDMI output to a Zoom Room for wired HDMI content sharing purposes, use an HDMI switch between those devices and the one HDMI-USB capture device connected to the Zoom Room.

In a typical conference room setup, the Zoom Room computer is located either by the displays, or in a dedicated equipment rack. This presents a challenge, as end users that may wish to use wired HDMI content sharing may be sitting at a conference table a significant distance away.

Due to USB cable length limitations, and to avoid latency, Zoom recommends extending HDMI to the end users (e.g. the conference table), not USB. For distances greater than maximum HDMI passive cable lengths (30ft, 10m), Zoom recommends using active cables or HDMI extenders, e.g. the Kramer TP-580T and TP-580R for HDMI extension over Category 5E cabling.

In instances where active hardware extenders are used for this signaling, please note that many of these devices do not signal connection status of the far end video signal and will accordingly be seen as 'always on' sources which may require additional settings by an admin to enable manual sharing initiation.

You can disable automatic detection for HDMI sharing by selecting the manual HDMI sharing option for Zoom Rooms. This may be useful when a device is always connected, such as a dedicated/fixed content computer.

In some instances, it may be best to change the label the Zoom Room uses to refer to the input from the capture device. Follow these steps if you want to change the default HDMI label for wired HDMI sharing:

If you wish to use HDMI output devices such as cameras as cameras (not content sharing) in Zoom Rooms, use an HDMI-USB peripheral other than those on the supported USB-HDMI capture devices list.

Secondly, I am curious about using a basic USB HDMI capture device like this Amazon.com Wondering if I had a couple of these plugged directly into my Channels DVR server or even a second machine on the network to feed into my server.

I have unfortunately been sick for a few months and trying to manage life and work and haven't really been able to keep up with the community. So again, if this is already discussed forgive me for asking again.

This FAQ shows how to set up audio with HDMI Share for HDMI Capture devices - such as laptops and TVs. To ensure your HDMI Capture device can support audio please see our Supported USB HDMI Capture Devices

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