Generate video for playback on Hyperdesk Studio 12G

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Yoann Baveye

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  • Joined: Tue Oct 03, 2017 2:39 pm

Generate video for playback on Hyperdesk Studio 12G

PostTue Oct 03, 2017 3:10 pm

Hello,

I am trying to generate uncompressed videos using ffmpeg for playback on my Hyperdesk Studio 12G.
Here is the command line I am using, which converts an yuv420p input to the desired uncompressed yuv 4:2:2 10 bits (codec: v210 yuv422p10le):

ffmpeg -s 1920x1080 -i input_video.yuv -r 23.976 -pix_fmt yuv422p10le -c:v v210 output_video.mov

While the generated video plays fine on my computer, once played on the Hyperdesk Studio, the colors are not preserved and each pixel is either pink or green. The result is very similar to this picture:

Image

Am I missing something during the encoding step?

Thank you,
Yoann
Last edited by Yoann Baveye on Tue Oct 03, 2017 7:47 pm, edited 1 time in total.
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Gary Adams

Blackmagic Design

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Re: Generate video for playback on Hyperdesk Studio 12G

PostTue Oct 03, 2017 5:36 pm

Hello Yoann. The Hyperdecks are only 422. They will not play back 444 video.

Regards, Gary
Gary Adams
Blackmagic Design
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Yoann Baveye

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Re: Generate video for playback on Hyperdesk Studio 12G

PostWed Oct 04, 2017 7:31 am

Gary Adams wrote:Hello Yoann. The Hyperdecks are only 422. They will not play back 444 video.
Regards, Gary


Hello Gary,
Yes it was a typo in my first post I edited. I am generating uncompressed yuv 422 videos and I am using the same encoder (v210) and same pixel format (yuv422p10le) as those used by the hyperdeck studio to record uncompressed files.
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Andrew Kolakowski

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Re: Generate video for playback on Hyperdesk Studio 12G

PostMon Oct 09, 2017 11:06 pm

Don't use -r 23.976, but 24000/1001. v210 should work fine. You can also try ProRes. I found that Hyperdeck is more picky about audio. Even if you don't have one make sure there is at least 2 channels 24bit silence in the file.

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