Wirecast 7.2 only displaying 1080i59.94 Signal

Hoping someone can shed some light on this for me. I am running wirecast 7.2 Studio and am using  3 x Canon 700d's and one GoPro hero3+ Black. They are running into 4 x Blackmagic HDMI-SDI Micro converters then into a Blackmagic Decklink Quad. The Canon's seem to work with wirecast and are running @  1080i59.94 with a frame rate of 29.97. The GoPro is running at HD1080p24 with a frame rate of 24.00.

I assumed that the canon's HDMI out could only output at 1080i59.94 but I am not testing an Sony A6500 which can happily output Clean HDMI at 2160p/1080p, 1080p and 1080i @24 or 60fps (according to the menu).

When I connect the Sony to the mini converter it shows that the output is set to 1080p24 but when I open Wirecast 7.2 Studio, the output disappears and there is not image displayed in wirecast. However, if I change the camera HDMI output to 1080i it displays @1080i59.94 in wirecast and the image is shown.


My question is why won't it display in 1080p???? Is this something with wirecast? Is anyone using either the Canon 700D or Sony A6500 with wirecast and if so, are you able to get an 1080p signal to work. 

Have literally spent HOUR plugging and unplugging cable to no avail. 

This is very frustrating.



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  • Always stay current with updates which include fixes and enhancements. You should leave check for updates enabled in preferences if you don't check manually often. Please update to Wirecast 7.7 which is the last update in that series. When you have an issue the first thing you'd want to do is to check to see if there's an update that fixes the issue. Use this link and download under Previous Versions at the top. Additionally if you're using Blackmagic devices you should check for updates to their driver. The current version is 10.9.10. Please update that as well.

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  • CraigS  Sorry, that was a typo. I am using the latest version of Wirecast 7 and all firmware for my blackmagic gear is current also. 

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  • Troy Grech You may want to test each source in Blackmagic Media Express. Wirecast is dependent on the Blackmagic driver so you'd need to check that the Blackmagic devices are properly passing it through outside of Wirecast. Keep in mind that some progressive signals are actually sent PsF (Progressive Segmented Frames) which is actually carried on interlace transport over SDI or HDMI.

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  • CraigS Thanks, I will try this later tonight. Still curios if anyone else is using any of these cameras, what resolution are they able to output to Wirecast?

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  • Troy Grech Generally if the resolution is compatible with the Decklink and MicroConvertor and video is seen by Media Express it will work in Wirecast.

    Decklink Quad
    625/25 PAL
    525/29.97 NTSC
    720p 50/59.94/60
    1080i 50/59.94/60
    1080PsF 23.98/24/25/29.97/30
    1080p 23.98/24/25/29.97/30

    Micro Converter HDMI to SDI

    Noting the Decklink doesn't support 1080p60 for example. The Micro Converter doesn't show PsF which Decklink supports.

    If the camera were sending PsF that could be an issue for example. PsF would likely be seen as i59.94 only.

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  • Thanks CraigS now it makes sense. Thanks for your help

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  • Troy Grech You're welcome of course. It can be a bit confusing with the variety of Blackmagic devices. They've even had situations where Blackmagic Camera output types weren't compatible with Blackmagic ATEM Switchers.

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  • CraigS absolutely! I really would love to use the A6500 as they are great little cameras. But from the sounds of it, the micro converter is the bottle neck. Do you have any recommendations of a converter that would suit me better??

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  • Troy Grech 
    AJA makes converters as well but no mention of PsF so I can't say for certain about compatibility. You may want to contact them and mention the camera or buy with a good return option.

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