(The audio/video signal is sent over a CAT5 cable with homemade Cinch/SVideo adapters at its ends)
- Linux server in the basement running an X11 server (& XFCE).
- Using nvtv to enable the TV out of the nVidia graphic card.
- MPlayer in slave/idle mode connected to a FIFO pipe for receiving commands.
- An HTML based mplayer interface written in PHP.
- Using a PSP (Playstation Portable) for remote controlling mplayer.
The current control features are: play/append, toggle OSD, pause, seek and playlist handling (prev/next). Works like a charm!
1) Enable the TV output:
Code: Select all
nvtv -t -S PAL -r 800,600 -s MediumCode: Select all
mkfifo mplayer_controlCode: Select all
mplayer -idle -slave -input file=/home/video/mplayer_controlCode: Select all
<?php
// @author: ^Rooker
// @date: 22.Feb.2008
// @description:
// HTML based remote control for mplayer in slave mode. Optimized for PlayStation Portable (PSP).
// @history:
// rooker 23.Feb.2008 - Added "append", "percentage-seek" and "OSD".
// - Limit browsing to below $basepath.
// - Improved code.
// rooker 22.Feb.2008 - Started.
// - Directory browsing.
// - Basic functions: play, pause, seek.
?>
<html>
<head>
<meta http-equiv="cache-control" content="no-cache"/>
<meta http-equiv="expires" content="0"/>
</head>
<body>
<?php
// Read URL parameters:
$value = $_GET['value'];
$action = $_GET['action'];
$path = $_GET['path'];
$basepath = '/media/';
$mpCtrlFile = '/home/video/mplayer_control';
// Allows to browse a file structure conveniently:
function dirlist ($path) {
global $basepath;
//using the opendir function
$dir_handle = @opendir($path) or die("Unable to open $path");
echo "<h1>Directory Listing</h1>";
echo "<i>\"$path\"</i> <br/>";
echo "<br/>";
// Iterating through all files/folders:
while ($file = readdir($dir_handle))
{
if ($file != '.') {
$fullname=$path.$file;
if (is_dir($fullname)) {
$fullname = realpath($fullname);
if (($file != '..') || (($file == '..') && ($path != $basepath))) {
echo "<a href='?path=$fullname/&uid=".uniqid()."'><$file></a> <br/>";
}
} else {
echo "$file ";
echo "<a href='?path=$path&action=loadfile&value=".$fullname."&uid=".uniqid()."'>play</a>";
echo " | ";
echo "<a href='?path=$path&action=append&value=".$fullname."&uid=".uniqid()."'>append</a>";
echo "<br/>";
}
}
}
closedir($dir_handle); //closing the directory
}
// Writes commands to mplayer's FIFO pipe (slave mode):
function ctrl_player ($command) {
global $mpCtrlFile;
$command = $command."\n";
echo "<hr/>Command: $command";
file_put_contents( $mpCtrlFile, $command );
}
function show_controls () {
global $_SERVER, $path;
// "uniqid" is necessary to force PSP to reload the page. :)
?>
<hr/>
<table border="0" width="100%">
<tr>
<td align="left"><a href='?path=<?php echo $path; ?>&action=seek&value=-5 0&uid=<?php echo uniqid(); ?>'><<<</a> </td>
<td align="center"><a href='?path=<?php echo $path; ?>&action=pause&uid=<?php echo uniqid(); ?>'>pause</a> </td>
<td align="right"><a href='?path=<?php echo $path; ?>&action=seek&value=+5 0&uid=<?php echo uniqid(); ?>'>>>></a> </td>
<td rowspan="4" align="right" valign="middle">
<b>Das Werkstatt TV</b><br/>
v1.1<br/>
<i><font size="-3">Powered by MPlayer (Linux)</font></i>
</td>
</tr>
<tr>
<td colspan="3" align="center">
<a href='?path=<?php echo $path; ?>&action=seek&value=0 1&uid=<?php echo uniqid(); ?>'>0</a>-----
<a href='?path=<?php echo $path; ?>&action=seek&value=25 1&uid=<?php echo uniqid(); ?>'>25</a>-----
<a href='?path=<?php echo $path; ?>&action=seek&value=50 1&uid=<?php echo uniqid(); ?>'>50</a>-----
<a href='?path=<?php echo $path; ?>&action=seek&value=75 1&uid=<?php echo uniqid(); ?>'>75</a>
</td>
</tr>
<tr>
<td align="left"><a href='?path=<?php echo $path; ?>&action=pt_step&value=-1&uid=<?php echo uniqid(); ?>'>prev</a></td>
<td align="center"><a href='?path=<?php echo $basepath; ?>'>BasePath</a></td>
<td align="right"><a href='?path=<?php echo $path; ?>&action=pt_step&value=+1&uid=<?php echo uniqid(); ?>'>next</a></td>
<td></td>
</tr>
<tr>
<td colspan="2" align="left">
OSD:
<a href='?path=<?php echo $path; ?>&action=osd&value=on&uid=<?php echo uniqid(); ?>'>on</a> |
<a href='?path=<?php echo $path; ?>&action=osd&value=off&uid=<?php echo uniqid(); ?>'>off</a>
</td>
<td align="right">
<a href='?path=<?php echo $path; ?>&action=quit&value=0&uid=<?php echo uniqid(); ?>'>quit</a>
</td>
<td></td>
</tr>
</table>
<hr/>
<?php
}
function show_filename ($filename, $text='') {
$duration = 5000; // how long to show the text (in msec).
ctrl_player("osd_show_text \"".$text.str_replace('_', ' ', basename($filename))."\" $duration");
}
show_controls();
dirlist( $path ); // Always display the directory listing. It's more convenient.
switch ($action) {
case "loadfile":
echo "<h1>Playing: ".basename($value)."</h1>";
ctrl_player( "loadfile \"$value\"" );
show_filename($value);
break;
case "append":
echo "<h1>Appended: ".basename($value)."</h1>";
ctrl_player( "loadfile \"$value\" 1" );
show_filename( $value, 'Appended: ' );
break;
case "pause":
ctrl_player( "pause" );
break;
case "seek":
ctrl_player( "seek $value" );
break;
case "pt_step":
ctrl_player( "pt_step $value" );
break;
case "osd":
if ($value == "on") $command = "osd 3";
if ($value == "off") $command = "osd 1";
ctrl_player($command);
break;
case "quit":
ctrl_player( "quit" );
break;
default:
// start with the basepath:
if ($path == "") $path = $basepath;
break;
}
?>
</body>
</html>The code is not really optimized or super-clean, but it's straightforward so it should work with *any* browser. Even lynx.
Notes:
1) I'm passing a generated unique-ID with every action, in order to have the PSP load the file from the server instead of using its cached version.
2) Unfortunately, mplayer closes itself after having played a file. So I've wrapped a small loop (bash script) around it to start a new instance automatically:
Code: Select all
while true; do
mplayer -idle -slave -input file=/home/video/mplayer_control
done