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mpvSockets

create one sockets per mpv instance (with the instance's process ID (PID), (unique)), instead of one socket for the last started instance

dangling sockets for crashed or killed instances is an issue, not sure if this script should handle/remove them or the clients/users, or both.

Installation

Download the single script file to your mpv-scripts-directory

Linux / unixes:

curl "https://raw.githubusercontent.com/wis/mpvSockets/master/mpvSockets.lua" --create-dirs -o "$Your_Mpv_Scripts_Directory_Location/mpvSockets.lua"

if you're on Linux, most likely the location is ~/.config/mpv/scripts, so run this before:

$Your_Mpv_Scripts_Directory_Location=$HOME/config/mpv/scripts

Windows (untested)

powershell:

Invoke-WebRequest -OutFile "$env:LOCALAPPDATA\mpv\scripts\mpvSockets.lua" "https://raw.githubusercontent.com/wis/mpvSockets/master/mpvSockets.lua"

Usage, with Mpv's JSON IPC

Linux / unixes (unix sockets):

a script that pauses all running mpv instances: bash:

#!/bin/bash
for i in $(ls /tmp/mpvSockets/*); do
	echo '{ "command": ["set_property", "pause", true] }' | socat - "$i";
done
# Socat  is  a  command  line based utility that establishes two bidirec-tional byte streams  and	 transfers  data  between  them.
# available on Linux and FreeBSD, propably most unixes. you can also use 

Windows (named pipes):

quote from https://mpv.io/manual/stable/#command-prompt-example

Unfortunately, it's not as easy to test the IPC protocol on Windows, since Windows ports of socat (in Cygwin and MSYS2) don't understand named pipes. In the absence of a simple tool to send and receive from bidirectional pipes, the echo command can be used to send commands, but not receive replies from the command prompt.

Assuming mpv was started with:

mpv file.mkv --input-ipc-server=\\.\pipe\mpvsocket You can send commands from a command prompt:

echo show-text ${playback-time} >\\.\pipe\mpvsocket To be able to simultaneously read and write from the IPC pipe, like on Linux, it's necessary to write an external program that uses overlapped file I/O (or some wrapper like .NET's NamedPipeClientStream.)

powershell client writer and reader (untested):

# socat.ps1
# usage: socat.ps1 <Pipe-name> <Message>
$sockedName = args[0]
$message = args[1]

$npipeClient = new-object System.IO.Pipes.NamedPipeClientStream('.', $socketName, [System.IO.Pipes.PipeDirection]::InOut, [System.IO.Pipes.PipeOptions]::None, [System.Security.Principal.TokenImpersonationLevel]::Impersonation)

$pipeReader = $pipeWriter = $null
try {
    $npipeClient.Connect()
    $pipeReader = new-object System.IO.StreamReader($npipeClient)
    $pipeWriter = new-object System.IO.StreamWriter($npipeClient)
    $pipeWriter.AutoFlush = $true

    $pipeWriter.WriteLine($message)

    while (($data = $pipeReader.ReadLine()) -ne $null) {
      $data
    }
}
catch {
    "An error occurred that could not be resolved."
}
finally {
    $npipeClient.Dispose()
}

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creates one IPC socket per mpv instance

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