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stream.php
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stream.php
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<?php
/*
* OpenUluh
* Copyright (c) 2012-* ShadowEO / Toxus Communications Systems <[email protected]>
* GPG Key ID: AC5EEA2B
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* TODO: Add recursive searching using path in XBMCHelper.class.php if filepath contains smb://
*/
require('libs/XBMCHelper.class.php');
$XBMC = new XBMCHelper();
$videoInformation = $XBMC->GetEpisodeInformation($_GET['e']);
$file = $videoInformation['filePath'];
$streampath = parse_url($file);
if(isset($streampath['scheme']) && $streampath['scheme'] == "smb://")
{
// We found that the filepath includes smb://, by this we have determined a
// Synchronized XBMC installation and substitute direct paths for searching for the file
// In the library.
$di = new RecursiveDirectoryIterator($XBMC->XBMCTVLibraryPath);
foreach(new RecursiveIteratorIterator($di) as $filename=>$cur)
{
if($cur->getFilename() == $videoInformation['filename'])
{
$file = $filename;
break;
}
}
}
$pathparts = pathinfo($file);
$exten = $pathparts['extension'];
switch($exten)
{
case 'mp4':
break;
default:
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
if(file_exists("./ffmpeg-win32/bin/ffmpeg.exe"))
{
$command = "./ffmpeg-win32/bin/ffmpeg.exe -i $ile -vcodec mp4 -acodec aac pipe:1";
} else {
die("FFmpeg not in ./ffmpeg-win32/bin, Please redownload OpenUluh from SVN or from release.");
}
} else {
$command = "ffmpeg -i $file -vcodec mp4 -acodec aac pipe:1";
}
ini_set("maximum_execution_time", "0"); /* Let's turn off the time limit for this... This isn't needed for MP4 files since those already do progressive download. This on the other hand... it encodes, buffers, spits out, rinse, lather and repeat */
/* Credit for below code to 4poc at https://github.com/4poc/php-live-transcode/blob/master/stream.php */
/* -- BEGIN FFmpeg Patch */
define('P_STDIN', 0);
define('P_STDOUT', 1);
define('P_STDERR', 2);
define('FFMPEG_PRIORITY', '15'); /* man nice */
define('CHUNKSIZE', 500*1024); /* how many bytes should fread() read from stdout of FFmpeg? */
$descriptor = array(
P_STDIN =>array("pipe","r"),
P_STDOUT => array("pipe","w"),
P_STDERR => array("pipe","w")
);
$process = proc_open("nice -n.".FFMPEG_PRIORITY." ".$command, $descriptor, $pipes);
$stdout_size = 0;
header("Content-Type: video/mp4");
if (is_resource($process)) {
while(!feof($pipes[P_STDOUT])){
$chunk = fread($pipes[P_STDOUT], CHUNKSIZE);
$stdout_size += strlen($chunk);
if ($chunk !== false && !empty($chunk)){
echo $chunk;
/* flush output */
if (ob_get_length()){
@ob_flush();
@flush();
@ob_end_flush();
}
@ob_start();
}
if(connection_aborted()){
break;
}
}
fclose($pipes[P_STDOUT]);
fwrite($pipes[P_STDIN], "q\r\n");
fclose($pipes[P_STDIN]);
exit;
/* -- END FFmpeg Patch */
}
break;
}
if (isset($_SERVER['HTTP_RANGE']))
{ // do it for any device that supports byte-ranges not only iPhone
rangeDownload($file);
}
else {
header("Content-Type: video/mp4");
header("Content-Length: ".filesize($file));
readfile($file);
}
function rangeDownload($file) {
$fp = fopen($file, 'rb');
$size = filesize($file);
$length = $size;
$start = 0;
$end = $size - 1;
header("Accept-Ranges: 0-$length");
if(isset($_SERVER['HTTP_RANGE'])) {
$c_start = $start;
$c_end = $end;
list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
if(strpos($range, ",") !== false) {
header("HTTP/1.1 416 Requested Range Not Satisfiable");
header("Content-Range: bytes $start-$end/$size");
echo("Your device or browser has sent a multi-byte content range, this is not able to be satisfied by PandoraTV. Please try your request again.");
exit();
}
if($range == "-") {
$c_start = $size - substr($range, 1);
}
else {
$range = explode('-', $range);
$c_start = $range[0];
$c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $size;
}
$c_end = ($c_end > $end) ? $end : $c_end;
if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
// (?) Echo some info to the client?
exit;
}
$start = $c_start;
$end = $c_end;
$length = $end - $start + 1; // Calculate new content length
fseek($fp, $start);
header('HTTP/1.1 206 Partial Content');
}
// Notify the client the byte range we'll be outputting
header("Content-Type: video/mpeg");
header("Content-Range: bytes $start-$end/$size");
header("Content-Length: $length");
// Start buffered download
$buffer = 1024 * 8;
while(!feof($fp) && ($p = ftell($fp)) <= $end) {
if ($p + $buffer > $end) {
// In case we're only outputtin a chunk, make sure we don't
// read past the length
$buffer = $end - $p + 1;
}
set_time_limit(0); // Reset time limit for big files
echo fread($fp, $buffer);
flush(); // Free up memory. Otherwise large files will trigger PHP's memory limit.
}
fclose($fp);
}
?>