Frame Grabber only grabs a blackish screen

    I'm configuring Hyperion (with the HyperCon app) and when I try to grab an image from the frame grabber I just get a black screen with some random seeming colors.


    My hardware is the typical setup: HDMI splitter -> HDMI2AV mini (upscales to 1080p) -> EasyCap USBTV007 -> RPI3


    In the attached screenshot I have both the video settings and the preview image I'm getting from the grabber.


    Note - I have since changed the Height and Width to: 720width 480height and it still only produces a black screen


    Also - here are the logs when I take a screenshot:


    [INDENT]ssh: $ killall hyperiond 2>/dev/null ; /storage/hyperion/bin/hyperion-v4l2.sh --device /dev/video0 --video-standard NTSC --input 0 --width 720 --height 480 --crop-left 0 --crop-right 0 --crop-top 0 --crop-bottom 0 --size-decimator 1 --frame-decimator 2 --red-threshold 0.0 --green-threshold 0.0 --blue-threshold 0.0 --screenshot
    ssh: hyperion-v4l2:
    ssh: version : V1.03.3 (brindosch-2fbbcff/2f01dfa-1495880388
    ssh: build time: Jun 3 2017 02:06:37
    ssh: V4L2GRABBER INFO: width=720 height=480
    ssh: V4L2GRABBER INFO: pixel format=YUYV
    ssh: V4L2GRABBER INFO: signal threshold set to: {0,0,0}
    ssh: V4L2GRABBER INFO: started
    ssh: V4L2GRABBER INFO: stopped
    sftp getFile(./screenshot.png, image)[/INDENT]


    You sure you bought the right HDMI2AV? You wrote "HDMI2AV mini (upscales to 1080p)", looks more like a AV2HDMI. Can you send a picture ?

    I believe so yes, this is what I purchased:


    HDMI to RCA,HDMI to AV, GANA 1080P HDMI to AV 3RCA CVBs Composite Video Audio Converter Adapter Supporting PAL/NTSC with USB Charge Cable

    OpenElec has removed apt from the OS so I can't install it. But for whatever reason, this thing has magically started working. I did jiggle some cords so maybe that had something to do with it?

    I've the same problem. I found another .sh that could throw up the output that you need:
    [INDENT][INDENT][INDENT]
    OpenELEC:~/hyperion/bin # ./hyperion-v4l2.sh
    hyperion-v4l2:
    version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
    build time: Apr 5 2018 01:57:25
    V4L2GRABBER INFO: width=720 height=480
    V4L2GRABBER INFO: pixel format=YUYV
    V4L2GRABBER INFO: signal threshold set to: {0,0,0}
    PROTOCONNECTION INFO: Connecting to Hyperion: 127.0.0.1:19445
    V4L2GRABBER INFO: started
    V4L2GRABBER INFO: Signal lost
    V4L2GRABBER INFO: Signal detected
    PROTOCONNECTION INFO: No connection to Hyperion: 127.0.0.1:19445
    V4L2GRABBER INFO: Signal lost
    V4L2GRABBER INFO: Signal detected    [/INDENT][/INDENT][/INDENT]


    As you can see... grabber enters in a loop connection :_(
    PLZ!! could you help me?¿?


    Thanks


    I am facing the same issue. However sometimes the log says :
    V4L2GRABBER INFO: started
    but anyway the screenshot is black :(
    Have you found any solution?

Jetzt mitmachen!

Sie haben noch kein Benutzerkonto auf unserer Seite? Registrieren Sie sich kostenlos und nehmen Sie an unserer Community teil!

Benutzerkonto erstellen Anmelden