Grabber Image Quality Issues

1st Official Post

    Hi,

    I am running Hyperion (installed through latest Hypercon) on a rpi3 model b+ (running raspbian buster) and APA102 LEDs directly connected to the rpi.
    For the USB Grabber I have an Easycap (model Bus 001 Device 005: ID 1b71:3002 Fushicai USBTV007 Video Grabber [EasyCAP] but also tested with a Syntek one).
    On both grabbers I have a weak image quality as you can see on the pic attached (that I had to grab with the command below due to the crash on Hypercon reported below):

    Code
    hyperion-v4l2 -d /dev/video0 -v PAL --input 1 --width 720 --height 576 -s 2 -f 2 --skip-reply --screenshot


    Since I have tried two grabbers (although they can be both faulty but at least the Syntek one was ok when I used it for some VCR recording) what can be the issue?
    From my perspective the HDMI2AV can be faulty and I have already ordered a new one. But on the software side can something be wrong also?


    Also another issue is that if I try to right click on Hypercon and try to Take Grabber Screenshot Hyperion crashes with the following log:

    Code
    sh in:     May 18 18:08:49 raspberrypi hyperiond[4449]: INFO: Application closed with code 0
ssh in:     May 18 18:08:49 raspberrypi hyperiond[4449]: V4L2GRABBER INFO: stopped
ssh in:     May 18 18:08:49 raspberrypi hyperiond[4449]: EFFECTENGINE INFO: Cleaning up Python interpreter
ssh in:     May 18 18:08:49 raspberrypi systemd[1]: Stopping Hyperion Systemd service...
ssh in:     May 18 18:08:50 raspberrypi systemd[1]: hyperion.service: Succeeded.
ssh in:     May 18 18:08:50 raspberrypi systemd[1]: Stopped Hyperion Systemd service.


    Full Start log:



    My Hyperion Config is attached.


    Thanks for the help!

    Hi,

    Thanks for the reply. Just tried with your settings.
    Tried again to take a screen grab from Hypercon which still crashes hyperion everytime but sometimes I get the screen grab on Hypercon displayed:



    Still bars across the image and mostly black and white.
    Thanks!

    None at all , just followed the guide on the forum and in fact that was my next question., whether I should install NG.
    Taking in account my current setup with rpi3 and raspbian and provisioned Hyperion with Hypercon, which is the best upgrade/migration path?

    Thanks

    • Official Post
    Quote from jonaspaulo

    Thanks for the reply. Just tried with your settings.
    Tried again to take a screen grab from Hypercon which still crashes hyperion everytime but sometimes I get the screen grab on Hypercon displayed:

    Hypercon gets the screenshots from hyperion-v4l2. Hypercon does not know the video standard option no-change. This is why hyperion crashes when you try to take a picture with hypercon. As @TPmodding said, the best thing to do is switch to NG.

    After removing Hyperion through Hypercon and following the steps to Install Hyperion.ng as on the thread described i get this when starting it:
    pi@raspberrypi:/storage/downloads/Hyperion-2.0.0-alpha.5-Linux-armv7hf/bin $ sudo ./hyperiond
    Illegal instruction


    Also trying the method of downloading the alpha5.deb and installing it manually yelds the same Illegal instruction result.


    *NEW UPDATE* There is some issue with the R5 on rpimodel3 b+ and latest raspbian. I followed the method below for R4 and it installed ok:
    wget https://github.com/hyperion-proje…armv6hf-rpi.deb
    sudo dpkg -i Hyperion-2.0.0-alpha.4-Linux-armv6hf-rpi.deb


    Now I will try to configure it and test again the screen capture and overall system behaviour

    Edited 2 times, last by jonaspaulo (May 20, 2020 at 11:57 PM).

    Hi,

    I have tried setting the HDMI2AV to NTSC as well as hyperion config. For sure it gives other colours but not the right ones still.
    And also I lose the live video preview on Hyperion WEB when I set it to NTSC

    Hi,

    Finally I got it working with your tips. Indeed my HDMI2AV grabber only provides the correct colours with the physical switch set to NTSC. I just rebooted the whole setup and also set Hyperion to NTSC and it did the trick.

    Some final doubts/advices:

    1- I have attached my final config. Do you see any option that could be improved form your knowledge?
    2- The Signal Detection setting doesn’t seem to be working ok for me. It detects the loss of signal but instead of turning the LEDs of it sets them to a Blue Color. It would be great if it just turns them off.
    3- How to control Hyperion.ng from Home Assistant for example? The Hyperion has an integration for this but the NG version I don’t think so. Which is the easiest way to control it remotely (by sending some call or script to Hyperion IP for instance) in order to turn it off/on and set a color/effect?
    4- On the Releases part as I mentioned earlier Alpha 5 for me just threw an Illegal Operation message when trying to install it. Is there any reason for this? Should I wait for alpha 6? And also due to my method of install (just dpkg -i the package) which is the best/recommended approach to upgrade hyperion.ng and rollback the version also?


    Also I have ordered another USB grabber with HDMI input (Nsendato UTVF007 USB2.0 To HDMI ) to try to get rid of HDMI2AV which I read somewhere it should work on hyperion.ng. I will report back if it does work ok!


    Thanks once again.

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