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Squished picture with Chome and Windows 10

Logging onto Chrome using a  PC, the Rendezvous reads my laptop camera just fine. When we switch the video source in Rendezvous to nice production-quality USB3 encoder, it throws up an error and says it can't use the device, even though it is listed as a source. We then tried an el cheapo $30 USB3 encoder works as the video source, and it displays in Rendezvous, but the signal is squished, like is reading the video as non-square pixels. We tried on three different windows machines. Same result. We also tried Firefox. 

All camera settings are fine. All software is updated. And both encoders work great for Zoom, Livestream, Google Meet...  

Using Chrome on a Mac, the crappy encoder actually works correctly, but we'd prefer to be able to use one of our super-charged PCs for an event next week. 

 

Any ideas? 

Thanks everyone!

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  • Heming Nelson said:
    When we switch the video source in Rendezvous to nice production-quality USB3 encoder,

     It may depend on what the USB3 device is outputting and the source feeding it. Also, the version of Chrome or Firefox may be a factor.

    Keep in mind WebRTC is generally limited to 720p although larger 16:9 sizes should scale. 

    In order for us to troubleshoot this, we would need more detailed technical information.

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  • Heming Nelson said:
    Using Chrome on a Mac, the crappy encoder actually works correctly, but we'd prefer to be able to use one of our super-charged PCs for an event next week. 

     This may well indicate a browser/OS limitation if it's working correctly on Mac since WebRTC/Rendezvous backend and Wirecast Rendezvous Dashboard likely don't play a role at that point.

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  • Thanks for the quick response. We scaled the video to 720p and that seems to make no difference. 

    As I mentioned, the Encoder/Chrome/PC combo works fine for Livestream, Zoom and Google Chat. And we also tried capturing via Wirecast and both encoders work fine.

    The issue seems to be limited to Rendezvous on any browser on the PC. (We've also tried three different PCs, same problem).

    We are using the latest versions of Chrome and Windows 10. 
    The better encoder we use if the AVio SDI
    (It's listed as supporting 720p)

    Any other tech specs you need? 

    Any ideas are appreciated. 

    Thanks!
     

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  • Heming Nelson said:
    We are using the latest versions of Chrome

    Please include version number as Chrome updates are frequent.
    Please include details about the source feeding it.
    Please test in Firefox (list version number) and test in Edge as well (although may not be officially supported).
    This is important since browser version may be very significant.

    Provide screenshot of source in browser and how presented in Rendezvous Dashboard.
     

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  • Heming Nelson said:
    works fine for Livestream, Zoom and Google Chat.

     But these may or may not be browser based. The issue may be browser related so we always need that information specifically.

    Please understand we need completely reproducible workflows with nothing subject to assumptions.

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  • CraigS here's the version info:

     

    Chrome: 93.0.45.77.63

    Firefox: 91.0.2

    Windows OS Build 19043.1165

     

    I was unable to try Edge because we are not hosting the program and so can't join with another browser. There's a team in England who left an event running so that we cold continue to troubleshoot, but we can approve other requests to join. 

    I downloaded a trial version of Wirecast, but did not look at it closely enough to see if we can set up our own Rendezvous. We can try Edge tomorrow when England is back up.  

     

    Attached is the screenshot. The camera in question is "Heming"

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • 8 days ago
      • Reported - view

      Heming Nelson Thanks. Exactly the kind of information we need.
       

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    • CraigS thanks. I'm heading out for the day, but we'll jump on tomorrow and try Edge and anything else we can think of. 

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • 7 days ago
      • Reported - view

      Heming Nelson Developers want to know the source frame size and framerate used (and if the source was interlaced) so we can replicate your workflow exactly. 

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  • Heming Nelson said:
    We can try Edge tomorrow when England is back up.  

     That would be helpful
    Please confirm the hosts are using Wirecast 14.3.1 

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  • CraigS I appreciate you goys continuing to bird-dog this. 

    We've been running 29.97 DF at both 720p and 1080p out of the camera. But the enocoder that actually works is just a cheap $30 purchase from Amazon with no published specs.  

    Also, we tried Edge 93.0.961.47 and same issue. Does not recognize the AVio encoder, and the Amazon encoder video shows up squished. Laptop camera again is fine. 

    BTW, no drivers or anything necessary for either encoder.

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  • Heming Nelson said:
    29.97 DF at both 720p

     Would that have been using HDMI?
    I don't think that supported on SDI which would be 720p59.94

    We have the Epiphan AV.io so we're going to test that.

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  • That's a good point. The AVio device is SDI in (and does not work at all). The Amazon device is HDMI in, and so was run through a converter prior to going into the encoder. Let me play around with that...

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • 7 days ago
      • Reported - view

      Heming Nelson Of course since AVio is a known professional device it's important for us to get that working. That works and some others may fall into place.

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  • OK, so I think your idea about the frame rate is the issue. When we go straight out of the camera at 1080p at 29.97 it works and recognizes the AVio device. And we can do 720p at 29.97. But 59.94, both progressive and interlaced, at 720 or 1080 do not work on PC's. But they do work on the Macs. Thanks for hanging in there with us.

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • 7 days ago
      • Reported - view

      Heming Nelson 720p59.94 should be the only 720 format that works. Others can work with various HDMI devices but only 720p59.94 is industry approved. 720 interlace or 30p are considered non standard although supported by some cameras and capture devices.

      1080 can be p or i. 1080p60 isn't officially industry supported but seems to be accepted in consumer video devices.

      So the Epiphan SDI and "Amazon" HDMI may support different formats with some overlap on the industry approved formats.

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  • Sorry, I'm revising my last statement. I think what worked and what did not has been a little arbitrary, or at least not consistent. Now the AVio device seems to be working with the PC no matter what standard we send to it. I'm unable to isolate what the issue was/is.

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