init

scripts/fix-avsync.lua

@@ -0,0 +1,25 @@
+--[[
+    Fixed A/V sync when switching the audio output device with using audio filters
+    available at: https://github.com/dyphire/mpv-scripts
+]]--
+
+local msg = require "mp.msg"
+
+local function fix_avsync()
+    local paused = mp.get_property_bool("pause")
+    msg.info("fix A/V sync.")
+    mp.commandv("frame-back-step")
+    if paused then
+        return
+    else
+        mp.set_property_bool("pause", false)
+    end
+end
+
+mp.observe_property("current-ao", "native", function(_, device)
+    local aid = mp.get_property_number("aid")
+    local has_af = mp.get_property("af", "") ~= ""
+    if device and aid and has_af then
+        fix_avsync()
+    end
+end)