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| 1 | local mp = require 'mp' | |
| 2 | local msg = require 'mp.msg' | |
| 3 | local utils = require 'mp.utils' | |
| 4 | ||
| 5 | -- IPC socket path per OS | |
| 6 | local ipc_socket_path | |
| 7 | if package.config:sub(1,1) == "\\" then | |
| 8 | ipc_socket_path = "\\\\.\\pipe\\mpvsocket" | |
| 9 | else | |
| 10 | ipc_socket_path = "/tmp/mpvsocket" | |
| 11 | end | |
| 12 | ||
| 13 | -- Escape JSON special chars | |
| 14 | local function escape_json_str(str) | |
| 15 | if not str then return "" end | |
| 16 | return (str:gsub("\\", "\\\\")
| |
| 17 | - | :gsub("\"", "\\\"")
|
| 17 | + | :gsub("\"", "\\\""))
|
| 18 | end | |
| 19 | ||
| 20 | -- Get full absolute path for the current file | |
| 21 | local function get_full_path() | |
| 22 | local path = mp.get_property("path") or ""
| |
| 23 | if path == "" then return "" end | |
| 24 | return path | |
| 25 | end | |
| 26 | ||
| 27 | -- Try open IPC pipe in write mode to check if main instance is running | |
| 28 | local function try_connect_pipe(path) | |
| 29 | local f = io.open(path, "w") | |
| 30 | if f then f:close() return true end | |
| 31 | return false | |
| 32 | end | |
| 33 | ||
| 34 | -- Send loadfile command with 'replace' to main instance | |
| 35 | local function send_file_to_main(path, filepath) | |
| 36 | local escaped_path = escape_json_str(filepath or "") | |
| 37 | local json = string.format('{"command": ["loadfile", "%s", "replace"]}', escaped_path)
| |
| 38 | ||
| 39 | local f = io.open(path, "w") | |
| 40 | if not f then | |
| 41 | msg.error("Could not connect to IPC pipe: " .. path)
| |
| 42 | return false | |
| 43 | end | |
| 44 | f:write(json .. "\n") | |
| 45 | f:close() | |
| 46 | msg.info("Sent file to main MPV: " .. filepath)
| |
| 47 | return true | |
| 48 | end | |
| 49 | ||
| 50 | -- Create IPC server pipe for main instance | |
| 51 | local function create_ipc_server(path) | |
| 52 | mp.set_property("input-ipc-server", path)
| |
| 53 | msg.info("Created IPC server pipe: " .. path)
| |
| 54 | end | |
| 55 | ||
| 56 | -- Determine instance mode on script load | |
| 57 | local is_main_instance = false | |
| 58 | if try_connect_pipe(ipc_socket_path) then | |
| 59 | is_main_instance = false | |
| 60 | msg.info("Detected existing MPV instance. This is a secondary instance.")
| |
| 61 | else | |
| 62 | create_ipc_server(ipc_socket_path) | |
| 63 | is_main_instance = true | |
| 64 | msg.info("No MPV instance detected. This is the main instance.")
| |
| 65 | end | |
| 66 | ||
| 67 | -- Handle file start events | |
| 68 | mp.register_event("start-file", function()
| |
| 69 | local filepath = get_full_path() | |
| 70 | ||
| 71 | if filepath == "" then | |
| 72 | msg.warn("No valid file path detected. Continuing standby.")
| |
| 73 | return | |
| 74 | end | |
| 75 | ||
| 76 | msg.info("Playing file: " .. filepath)
| |
| 77 | ||
| 78 | if is_main_instance then | |
| 79 | msg.info("Main instance: playing file normally.")
| |
| 80 | -- normal playback behavior | |
| 81 | else | |
| 82 | msg.info("Secondary instance: sending file and quitting.")
| |
| 83 | if send_file_to_main(ipc_socket_path, filepath) then | |
| 84 | -- Delay quit to ensure IPC pipe flushes properly | |
| 85 | mp.add_timeout(0.1, function() mp.commandv("quit") end)
| |
| 86 | else | |
| 87 | msg.error("Failed to send file; continuing as standalone.")
| |
| 88 | create_ipc_server(ipc_socket_path) | |
| 89 | is_main_instance = true | |
| 90 | end | |
| 91 | end | |
| 92 | end) |
