Qt sample for encoding H265 doesnt work

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Zack Snyder

  • Posts: 1
  • Joined: Wed Jan 25, 2017 4:38 pm

Qt sample for encoding H265 doesnt work

PostWed Jan 25, 2017 4:41 pm

I tried the sample for encoding h265 video stream. I exit with an device could not be initialized.
I have an Extreme 4K. Does not every card support h265 encoding?
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Ian Morrish

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  • Joined: Sun Jan 18, 2015 9:24 pm
  • Location: New Zealand

Re: Qt sample for encoding H265 doesnt work

PostWed Jan 25, 2017 11:39 pm

No, only the Television Studio (TVS) and H.264 Pro Recorder.
Regards,
Ian Morrish
Video Integrated Scripting Environment
(Windows PowerShell with ATEM driver + more)
https://ianmorrish.wordpress.com
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Nicholas Gill

Blackmagic Design

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  • Joined: Mon May 04, 2015 10:28 pm

Re: Qt sample for encoding H265 doesnt work

PostWed Feb 08, 2017 3:46 am

Hi Zack, Ian,

Just to clarify a potential misunderstanding, H.265 encoding is supported by certain DeckLink devices only, (e.g. the UltraStudio 4k Extreme [1]), and is not supported by the DeckLink 4K Extreme.

H.264 encoding is similarly supported by certain devices only (incl. the H.264 Pro Recorder and ATEM Television Studio).

An application utilising the DeckLink 4K Extreme to perform H.265 (or H.264) encoding would generally integrate code to perform the encoding of the raw video frames provided by the DeckLink API.

Hope that helps clarify,

-nick

[1] https://www.blackmagicdesign.com/au/products/ultrastudiothunderbolt/techspecs/W-DLUS-08

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