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Video Grabber causes flickering

Discussion in 'Hyperion Hardware' started by Lyr3x, 1 July 2018.

  1. Lyr3x

    Lyr3x New Member

    Messages:
    9
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +PhilipsHue
    I switches recently from 50 Ws2801 to 209 APA102 leds and since then im fighting a little flickering issue. I am using the level shifter and everything i soldered fine. I found out what the real problem is: the logilink video grabber I'm using for years now.

    I also switched to an Pi Zero W (from an Pi 1 B+) and also to hyperion-ng. When checken the live video function the video grabber signal is a washed out and also changing the colors often which results in a flickering ambilgiht. I tried to make a short video of the ui:
    https://photos.app.goo.gl/oPojNQijum2tJSLV6

    Check the top row beginning at LED 6 (started in the top lef corner) The orange part is switching between orange/green/red and an mix of those colors. This is very distraction when watching movies....

    Not sure how to fix this as i tried changing frame decimation and also played with the smoothing factors. Hopy anybody has an idea :)
     
  2. Lyr3x

    Lyr3x New Member

    Messages:
    9
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +PhilipsHue
    i think i fouind the problem. The grabber was set up as NTSC by default. I changed it to PAL and it stops flickering that much (not perfect). There is also an issue with my [email protected] scaler which i used before i bought the hdfury linker... I'll buy the standard 3 chips hdmi cvbs converter to test
     
    Last edited: 4 July 2018