Video Zoom (Crop) in Plex Desktop app

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Figured it out. For anyone having the same issue as me, check this example script out. Keybinds only work through the mp.add_forced_key_binding() function, non-forced does nothing.

The keybinds are Shift++, Shift+- and Shift+0 to add, subtract and reset the zoom level respectively.
Don’t forget to change the extension to .lua, and then you can just put it in %LOCALAPPDATA%\Plex\scripts\ for it to work.

zoom-keybinds.txt (798 Bytes)

[admin edit: file attachments are automatically purged after a few months, so it is better to embed short scripts directly]

function round(num, numDecimalPlaces)
    local mult = 10^(numDecimalPlaces or 0)
    return math.floor(num * mult + 0.5) / mult
end

function zoomAdd()
    mp.command("add video-zoom +0.05")
    zoom_level = mp.get_property("video-zoom")
    zoom_level = round(zoom_level, 2)
    mp.osd_message("Zoom: "..zoom_level, 0.5)
end

function zoomSub()
    mp.command("add video-zoom -0.05")
    zoom_level = mp.get_property("video-zoom")
    zoom_level = round(zoom_level, 2)
    mp.osd_message("Zoom: "..zoom_level, 0.5)
end

function zoomReset()
    mp.command("set video-zoom 0")
    mp.osd_message("Zoom reset")
end

mp.add_forced_key_binding("+", "zoomAdd", zoomAdd)
mp.add_forced_key_binding("_", "zoomSub", zoomSub)
mp.add_forced_key_binding(")", "zoomReset", zoomReset)
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