Hello!

I would like to be able to control the player by help of a small handwritten 
C-program.

There are some documentation about control of the browser plugin (see 1). 
Method is equivalent, I think.

Until now, I've written an C-program that opens a socketpair and starts 
"realplayer --embedded X" (X = socket number)
The player listen for commands on the socket and when I'm sending "Shutdown" 
the player exits.

But sending a command different from "Shutdown" runs in an error :-(

Are there some more documentation? 
Could it be the commands are not the same (as used for the browserplugin)?


Here my C-prog (ist's a first version, there are errors, I know):
==================================================
#include <unistd.h>             // exec(3)
#include <sys/types.h>          // socketpair
#include <sys/socket.h>         // -"-
#include <stdio.h>
#include <stdlib.h>
#define DATA "Shutdown\n"

int main(void)
{
        int sockets[2]={}, status, eingabe;
        socketpair(AF_UNIX, SOCK_STREAM, 0, sockets);
        printf("Socket %d and %d created\n", sockets[0], sockets[1]);
        if (fork() == 0)
                execl("/usr/bin/realplay", "realplay", "--embedded", "3", 0);
        close(sockets[0]);
        printf("Commands:\n(0) Shutdown\n");
        do
        {
                scanf("%d", &eingabe);
                switch (eingabe)
                {
                        case 0:
                                write(sockets[1], DATA, sizeof(DATA));
                                break;
                }
        }
        while ( eingabe == 99 );
        close(sockets[1]);
        wait(&status);
        printf("End\n");
        return 0;
}
=================================================================


(This is my first post on this list)


Stefan

(1) https://player.helixcommunity.org/2004/developer/gtk/sods/ipc.html