Cannot lower resolution

  • So i'm running a pi zero W with hyperion on it and I'm still trying to hammer out some of the software kinks since the lights I got were broken lol.

    I'm trying to down scale the image to the pi because I don't need it to run in 1080p, all I need it to do is get color it can go to 720p.

    With that said I cannot downscale it, It is at 1080p and there are no other options to change it. Any suggestions?

  • Go to Best Answer
  • hyperion Version?

    Grabber ?

    Post output from v4l2-ctl --list-formats-ext  and v4l2-ctl --all

    regards pclin

    Dreambox ONE / TWO
    Amlogic S922X - 53.000 DMIPS - 2 GB RAM - 16 GB Flash - Twin-DVB-S2X Tuner - HDR10 - HLG
    AudioDSP: miniDSP 2x4HD - Lautsprecher ELAC
    LG OLED65BX9LB (PicCap)
    hyperion (classic) & Plugin HyperionControl | hyperion-ng 2.0.12 (dreamOS)
    Hyperion-ng (Debian Buster)
    6 x Wemos D1 mini - WLED - SK6812 RGBW-NW 60 LEDs/m
    5-Port HDMI Switch - FeinTech VSP01201 - Grabber Macrosilicon


    Ambilight for ever

  • Hey there! this is the first output

    EDIT: Forgot Hyperion version and the grabber.

    version: 2.0.0-alpha.10

    The grabber i got is this one from Amazon.…F1D6?_encoding=UTF8&psc=1

    Also, bought another one to try it out.

    pi@HyperBian:~ $ v4l2-ctl --list-formats-ext

    ioctl: VIDIOC_ENUM_FMT

    Type: Video Capture

    [0]: 'MJPG' (Motion-JPEG, compressed)

    Size: Discrete 1920x1080

    Interval: Discrete 0.017s (60.000 fps)

    Interval: Discrete 0.033s (30.000 fps)


    here is the second

    pi@HyperBian:~ $ v4l2-ctl --all

    Driver Info:

    Driver name : uvcvideo

    Card type : eEver USB Device: HDMI capture

    Bus info : usb-20980000.usb-1.1.1

    Driver version : 5.10.17

    Capabilities : 0x84a00001

    Video Capture

    Metadata Capture


    Extended Pix Format

    Device Capabilities

    Device Caps : 0x04200001

    Video Capture


    Extended Pix Format

    Media Driver Info:

    Driver name : uvcvideo

    Model : eEver USB Device: HDMI capture

    Serial : 20000130041415

    Bus info : usb-20980000.usb-1.1.1

    Media version : 5.10.17

    Hardware revision: 0x00000100 (256)

    Driver version : 5.10.17

    Interface Info:

    ID : 0x03000002

    Type : V4L Video

    Entity Info:

    ID : 0x00000001 (1)

    Name : eEver USB Device: HDMI capture

    Function : V4L2 I/O

    Flags : default

    Pad 0x01000007 : 0: Sink

    Link 0x02000010: from remote pad 0x100000a of entity 'Extension 4': Data, Enabled, Immutable

    Priority: 2

    Video input : 0 (Camera 1: ok)

    Format Video Capture:

    Width/Height : 1920/1080

    Pixel Format : 'MJPG' (Motion-JPEG)

    Field : None

    Bytes per Line : 0

    Size Image : 4147200

    Colorspace : sRGB

    Transfer Function : Rec. 709

    YCbCr/HSV Encoding: ITU-R 601

    Quantization : Default (maps to Full Range)

    Flags :

    Crop Capability Video Capture:

    Bounds : Left 0, Top 0, Width 1920, Height 1080

    Default : Left 0, Top 0, Width 1920, Height 1080

    Pixel Aspect: 1/1

    Selection: crop_default, Left 0, Top 0, Width 1920, Height 1080, Flags:

    Selection: crop_bounds, Left 0, Top 0, Width 1920, Height 1080, Flags:

    Streaming Parameters Video Capture:

    Capabilities : timeperframe

    Frames per second: 30.000 (30/1)

    Read buffers : 0


    • Best Answer

    Gabegg Since alpha10 you get the available resolution displayed.
    To reduce the size of the processed image, make use of the "Size Decimation" parameter you just find some items below.

    The screen captured is then divided by "size decimation" to have reduce image image with a proper ratio.

    You configure size decimation = 1 which means you go with the full screen image end-to-end....
    A good starting point is size decimation = 8 (which was also the default....)

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