AutoVSR for MPV w/ HEVC Main 10 Support

readme.md

AutoVSR for MPV

This Lua script automatically enables NVIDIA Video Super Resolution (VSR) in MPV

Features:

• Dynamically adjusts scaling based on display and video resolution
• Applies nv12 pixel format to 10bit HEVC as it is unsupported by VSR otherwise
• Toggle with Ctrl+Shift+R (default: on)

Usage:

1. Enable "Super Resolution" under "RTX Video Enhancements" in the Nvidia App
2. Place autovsr.lua in your MPV scripts folder
3. Restart MPV
4. Press Ctrl+Shift+R to toggle VSR

---

🔗 Original discussion comment: mpv-player/mpv#14804

autovsr.lua

local mp = require 'mp'

-- Configuration
local autovsr_enabled = true -- Default to VSR enabled

-- Function to apply VSR with dynamic scaling
local function apply_vsr()
    -- Get video and display properties
    local video_width = mp.get_property_number("width")
    local video_height = mp.get_property_number("height")
    local display_width = mp.get_property_number("display-width")
    local display_height = mp.get_property_number("display-height")
    local codec = mp.get_property("video-codec", "")
    local pixelformat = mp.get_property("video-params/pixelformat", "")

    -- Validate properties
    if not (video_width and video_height and display_width and display_height and codec and pixelformat) then
        mp.osd_message("RTX VSR: Missing video properties, retrying...", 1)
        return
    end

    -- Calculate scale factor and round to nearest 0.1
    local scale = math.max(display_width / video_width, display_height / video_height)
    scale = scale - (scale % 0.1)

    -- Remove existing filters only if they exist
    local vf_chain = mp.get_property("vf", "")
    if vf_chain:find("@format-nv12") then
        mp.commandv("vf", "remove", "@format-nv12")
    end
    if vf_chain:find("@vsr") then
        mp.commandv("vf", "remove", "@vsr")
    end

    -- Apply VSR if upscaling is needed
    if scale > 1 then
        -- Apply format=nv12 for Main 10 HEVC (H.265 + 10-bit formats: p10le or p010)
        if codec:lower():match("hevc") or codec:lower():match("h%.265") then
            if pixelformat:match("p10le$") or pixelformat == "p010" then
                mp.commandv("vf", "append", "@format-nv12:format=nv12")
                mp.osd_message("RTX VSR ON: Applied nv12 for Main 10 HEVC", 1)
            end
        end
        mp.commandv("vf", "append", "@vsr:d3d11vpp:scaling-mode=nvidia:scale=" .. scale)
    end
end

-- Function to toggle VSR
local function toggle_vsr()
    autovsr_enabled = not autovsr_enabled

    if autovsr_enabled then
        apply_vsr()
        mp.observe_property("video-params", "native", apply_vsr)
        mp.observe_property("vf", "native", apply_vsr)
        mp.osd_message("RTX VSR ON")
    else
        mp.commandv("vf", "remove", "@format-nv12")
        mp.commandv("vf", "remove", "@vsr")
        mp.unobserve_property(apply_vsr)
        mp.osd_message("RTX VSR OFF")
    end
end

-- Apply VSR automatically on video load
mp.register_event("file-loaded", function()
    if autovsr_enabled then
        apply_vsr()
        mp.observe_property("video-params", "native", apply_vsr)
        mp.observe_property("vf", "native", apply_vsr)
    end
end)

-- Keybinding for VSR toggle
mp.add_key_binding("ctrl+shift+r", "autovsr", toggle_vsr)