mpv set screenshot location by rules

.config/mpv/scripts/screenshot.lua

@@ -0,0 +1,27 @@
+local mp = require 'mp'
+local utils = require 'mp.utils'
+local opt = require 'mp.options'
+
+local user_opts = {
+    -- 如果视频位于该目录下的子目录，则截图和视频保存在同一位置
+    dirs = {'/mnt/', '/run/media/'},
+}
+
+local script_name = mp.get_script_name()
+opt.read_options(user_opts, script_name)
+
+local function set_screenshot_dir()
+    local filepath = mp.get_property("path")
+    if filepath == nil or filepath:find("^http[s]?://") then
+        return
+    end
+    local dir, _ = utils.split_path(filepath)
+    for _, prefix in pairs(user_opts.dirs) do
+        if dir:find(prefix, 1, true) then
+            mp.set_property('screenshot-directory', dir)
+            return
+        end
+    end
+end
+
+mp.register_event("file-loaded", set_screenshot_dir)