Fix seeking for mpv <0.33.0 on Linux

README.md

@@ -17,8 +17,9 @@ No dependencies, no background thumbnail generation hogging your CPU.
 Customizable sizes, interval between thumbnails, cropping support, respects applied video filters.  
 Supports web videos e.g. YouTube (disabled by default), mixed aspect ratio videos.
 
-This script makes an effort to run on mpv versions as old as 0.29.0.  
-Note that most custom UIs will not support vintage mpv builds, consider updating if you're having issues.
+This script makes an effort to run on mpv versions as old as 0.29.0 (Windows, Linux) and 0.33.0 (Mac).  
+Note that most custom UIs will not support vintage mpv builds, update before submitting an issue and mention if behavior is the same.  
+Support for <0.33.0 on Linux requires socat.
 
 ## Usage
 Once the lua file is in your scripts directory, and you are using a UI that supports thumbfast, you are done.  

thumbfast.lua

@@ -43,6 +43,7 @@ mp.options = require "mp.options"
 mp.options.read_options(options, "thumbfast")
 
 local pre_0_30_0 = mp.command_native_async == nil
+local pre_0_33_0 = true
 
 function subprocess(args, async, callback)
     callback = callback or function() end
@@ -392,7 +393,7 @@ local function spawn(time)
         table.insert(args, "--macos-app-activation-policy=accessory")
     end
 
-    if os_name == "Windows" then
+    if os_name == "Windows" or pre_0_33_0 then
         table.insert(args, "--input-ipc-server="..options.socket)
     else
         local client_script_path = options.socket..".run"
@@ -439,6 +440,9 @@ local function run(command)
     local file = nil
     if os_name == "Windows" then
         file = io.open("\\\\.\\pipe\\"..options.socket, "r+")
+    elseif pre_0_33_0 then
+        subprocess({"/usr/bin/env", "sh", "-c", "echo '" .. command .. "' | socat - " .. options.socket})
+        return
     else
         file = io.open(options.socket, "r+")
     end
@@ -723,4 +727,8 @@ mp.register_script_message("clear", clear)
 mp.register_event("file-loaded", file_load)
 mp.register_event("shutdown", shutdown)
 
+mp.add_hook("on_before_start_file", 0, function()
+    pre_0_33_0 = false
+end)
+
 mp.register_idle(watch_changes)