Difference between revisions of "Streaming to iPod touch or iPhone"

/usr/local/bin/mythipod.sh

#!/bin/bash

#MythIPod v.1 http://www.chiefhacker.com/                                                 
#Copyright 2007 Chris Lorenzo et al                  
#This software is licensed under the CC-GNU LGPL <http://creativecommons.org/licenses/LGPL/2.1/> 
#Additionally modified 2007 Doug Johnson

if [ ! $# == 2 ]; then
  echo "Usage: $0 directory file"
  exit
fi

directory="$1";
file="$2";

#Get the video information
video_info=`mplayer -vo null -ao null -frames 10 -identify "${directory}/${file}" 2>/dev/null`

#Command line grep sucks, but we make due...
aspect=`echo $video_info | egrep -oe "Movie-Aspect is [0-9:.]+" | egrep -o "[0-9:.]+"`
framerate=`echo $video_info | egrep -oe "[0-9.]+ fps" | egrep -o "[0-9.]+"`

# set resolution by aspect ratio

if [ "$aspect" == "1.78:1" ]
then
  width=432
  height=240
  vbitrate=480k
else
  width=480
  height=360
  vbitrate=378k
fi

abitrate=128k

# Figure out which AAC we have
AAC=$(ffmpeg -v 2>&1|sed "s/--enable-/\n/g"|grep aac|awk '{print $1}')
if [ "x${AAC}" = "xlibfaac" ]
then
	ACODEC="-acodec libfaac"
else
	ACODEC="-acodec aac"
fi

# Create the MP4

ffmpeg -i "${directory}/${file}" $ACODEC -ab ${abitrate} -ac 2 -s ${width}x${height} -vcodec mpeg4 -b ${vbitrate} -flags +aic+mv4+trell -mbd 2 -cmp 2 -subcmp 2 -g 250 -maxrate 512k -bufsize 2M -title "${file}" "${directory}/${file}.mp4" 

# UPDATED - For newer builds of ffmpeg, trell and title are deprecated - use this instead:
# ffmpeg -i "${directory}/${file}" $ACODEC -ab ${abitrate} -ac 2 -s ${width}x${height} -vcodec mpeg4 -b ${vbitrate} -flags +aic+mv4 -trellis 1 -mbd 2 -cmp 2 -subcmp 2 -g 250 -maxrate 512k -bufsize 2M -metadata title="${file}" "${directory}/${file}.mp4"
# UPDATED 2 - If you get an error like "libfaac doesn't support this output format" try resampling audio input to 44100Hz:
# ffmpeg -i "${directory}/${file}" $ACODEC -ab ${abitrate} -ac 2 -ar 44100 -s ${width}x${height} -vcodec mpeg4 -b ${vbitrate} -flags +aic+mv4 -trellis 1 -mbd 2 -cmp 2 -subcmp 2 -g 250 -maxrate 512k -bufsize 2M -metadata title="${file}" "${directory}/${file}.mp4"

/usr/local/bin/mythexpire.pl

#!/usr/bin/perl
#Checks the myth recording directory for .mp4 files that don't have a corresponding .mpg. If found, it deletes them.

#Change below to your myth recordings directory
$directory = "/mnt/store";

foreach $f (<$directory/*>) {
        if ( $f =~ /\.mp4$/ )
        {
                $f =~ s/\.mp4$//;
                if (!( -e $f )) { `rm -f $f.mp4`; };
        }
}

%mythweb%/modules/tv/tmpl/default/recorded.php

 
<tr id="statusrow_<?php echo $row ?>" class="recorded">
    <td nowrap colspan="<?php echo 6 + ($_SESSION['recorded_descunder'] ? 0 : 1) + $recgroup_cols ?>" align="center">
		<?php
			echo '<span style="padding-right: 25px; word-spacing: 0.5em;">ipod stream: <b>';
			$file = basename($show->filename);
			if(file_exists($show->filename . '.mp4')){
				echo '<a href="/mythweb/data/recordings/' . $file . '.mp4" target="_blank">Watch</a> ';
				echo "</b>";
			} else {
				echo '<a href="/mythweb/data/ipodencoder.php?file=recordings/' . basename($show->filename) . '&convert=true" target="_blank">Encode?</a> ';
			}
			echo '</b></span>';
		?>

%mythweb%/data/ipodencoder.php

 
<?php

/* 
MythIPod v.2 
Original from MythFlash v.1 http://www.chiefhacker.com/ Copyright 2007 Chris Lorenzo                    
This software is licensed under the CC-GNU LGPL <http://creativecommons.org/licenses/LGPL/2.1/> 
Modified 2007 Doug Johnson - changing to encode for iPod. Changes to the recorded.php also don't
reference the player here, so I've simply left that out
*/

if(!isset($_GET['file']) && (!file_exists($_GET['file'])) ){
        print "<br /><br /><center><strong>No File!</strong></center>";
        die();
}

$file = $_GET['file'];

//Convert the file to mp4 using /usr/local/bin/mythipod.sh
if(isset($_GET['convert'])) {
   //recording directory must be writable by owner of apache process eg. www-data or apache
   //runs the command in the background   
   $dir = getcwd() ."/recordings";
   
   if(!is_writable($dir)) {
   	  $apache_owner = `whoami`;
   	  print "<div style='padding: 15px; font-size: larger;'>Recording directory, $dir, is not writable by ${apache_owner}. <br>
	  Please add ${apache_owner} to mythtv group in /etc/group and make sure that the store directory <br>
	  is writable by ${apache_owner} - ie chmod 775 MYTHTV_STORE .</div>";
   } else {
	   print "<div style='padding: 15px; font-size: larger;'>Converting file, should be done in about the length of the show ...";
	   print "<br> <a href=\"javascript:window.close();\" \">close window</a></div>";
	   system("nohup nice -n 15 /usr/local/bin/mythipod.sh ". $dir ." ". basename($file) ." > /dev/null 2>&1 &");
	}
   die();
}

?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
	<title>iPod Touch Streamer</title>

<script type="text/javascript" language="javascript" src="ufo.js"></script>
<link type="text/css" href="streamer.css" rel="stylesheet">

</head>
<body>

You shouldn't be here.

</body>
</html>