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RPi + Other Software RPi3 + RPi camera with FishEye lens

Discussion in 'Software Support' started by panec, 23 October 2020.

  1. panec

    panec New Member

    Messages:
    15
    Hardware:
    RPi3
    Hi,

    I'm trying to set up hyperion.ng with an RPi camera that I want to position very close to the TV. All seems to be working fine OOTB latest 2.0.0-alpha.8 version. The only issue I have is the distortion because of the ultra-wide fisheye lens. I tried to correct it using v4l2loopback and ffmpeg as suggested here:
    https://hyperion-project.org/thread...v-prepare-input-region.2615/page-5#post-24418
    but with no luck. Even if I create a /dev/video1 stream I cannot successfully switch hyperion to use it.
    After running this command:
    ffmpeg -re -i /dev/video0 -vf "perspective=382:127:1563:91:387:761:1495:986" -map 0:v -f v4l2 /dev/video1
    I receive this error:
    hyperiond V4L2:/DEV/VI : <ERROR> Throws error nr: VIDIOC_G_FMT error code 22, Invalid argument

    Any suggestions on how that can be done efficiently?
     
    Last edited: 23 October 2020