MPV Resize window

resize_window.lua

-- resize_window.lua
local mp = require 'mp'
local msg = require 'mp.msg'

local options = {
    min_height = 1080,
    max_screen_ratio = 0.75,
    enabled = true
}

-- 加载 mp.options 模块并读取配置
mp.options = require "mp.options"
mp.options.read_options(options, "resize_window")

local resized = false

-- 可选：定义一个函数来打印当前配置（用于调试）
local function print_options()
    msg.info(string.format("Resize Window Options: min_height=%d, max_screen_ratio=%.2f, enabled=%s",
        options.min_height, options.max_screen_ratio, tostring(options.enabled)))
end


if not options.enabled then
    msg.info("resize_window disabled")
else
    mp.msg.info("MPV window resized script running...")
end

-- 在脚本加载时打印当前配置（可选）
print_options()

mp.register_event("file-loaded", function()
    if not resized then
        -- 检测是否处于全屏模式，如果以全屏启动播放器则跳过该脚本执行
        local is_fullscreen = mp.get_property_native("fullscreen")
        if is_fullscreen then
            msg.info("MPV is in fullscreen mode. Skipping window resize.")
            return
        end

        local video_width = tonumber(mp.get_property("video-params/w", "0")) or 0
        local video_height = tonumber(mp.get_property("video-params/h", "0")) or 0
        local screen_width = tonumber(mp.get_property("display-width", "0")) or 0
        local screen_height = tonumber(mp.get_property("display-height", "0")) or 0

        if video_width > 0 and video_height > 0 then
            local ratio = video_width / video_height

            local max_height = math.floor(screen_height * options.max_screen_ratio)
            local target_height = math.max(options.min_height, math.min(max_height, video_height))
            local target_width = math.floor(ratio * target_height)

            if target_width > screen_width then
                target_width = screen_width
                target_height = math.floor(target_width / ratio)
            end

            local percent_string = ""
            if target_height == max_height then
                local percentage = math.floor((target_height / screen_height) * 100)
                percent_string = string.format(" (%d%%)", percentage)
            end

            mp.set_property("geometry", string.format("%dx%d", target_width, target_height))
            msg.info(string.format(
                "Resize successful: Adjusted video to %dx%d%s based on screen resolution (%dx%d).",
                target_width, target_height, percent_string, screen_width, screen_height
            ))

            resized = true
        else
            msg.warn("无法确定视频尺寸。调整窗口大小已跳过。")
        end
    end
end)