/**
* Actually sends the data in the specified file.
*
*
* @author Ben Dodson, PHP.net
* @version 11/11/04
* @since 11/11/04
*/
function streamFile($path, $name, $limit = false, $resample = "", $download = false, $contentTypeFor = false)
{
global $always_resample, $allow_resample, $always_resample_rate, $jzUSER;
// Let's ignore if they abort, that way we'll know when the track stops...
ignore_user_abort(TRUE);
$jzSERVICES = new jzServices();
$jzSERVICES->loadStandardServices();
$status = false;
if ($limit === false) {
$speed_limit = 1 * 1024;
} else {
$speed_limit = $limit;
}
// limit is passed as a param because we may want to limit it for downloads
// but not for streaming / image viewing.
// Also, we may want to write a different function for resampling,
// but I don't know yet.
// IF NO SPEED LIMIT:
// the 'speed_limit' from above is the amount
// of buffer used while sending the file.
// but with no speed limit, there is no 'sleep' issued.
// this makes seeking in a file much faster.
// Let's get the extension of the real file
$extArr = explode(".", $path);
$ext = $extArr[count($extArr) - 1];
if (!is_file($path) || connection_status() != 0) {
return false;
}
$meta = $jzSERVICES->getTagData($path);
$do_resample = false;
if (!isNothing($resample)) {
$do_resample = true;
}
if ($allow_resample == "true" && stristr($always_resample, $ext)) {
$do_resample = true;
}
if ($meta['type'] == "mp3") {
if (!isNothing($resample) && $resample >= $meta['bitrate']) {
$do_resample = false;
}
}
if ($download) {
$do_resample = false;
}
// Are they resampling or transcoding?
if ($do_resample) {
// Ok, if resampling isn't set let's go with the default
if ($resample == "") {
$resample = $always_resample_rate;
}
// Now let's load up the resampling service
$jzSERVICES = new jzServices();
$jzSERVICES->loadService("resample", "resample");
$jzSERVICES->resampleFile($path, $name, $resample);
// Now let's unset what they are playing
$be = new jzBackend();
$be->unsetPlaying($_GET['jz_user'], $_GET['sid']);
return;
}
// Now we need to know if this is an ID3 image or not
// First let's get their limit
$limit = "7";
$size = filesize($path);
$range = getContentRange($size);
if ($range !== false) {
$range_from = $range[0];
$range_to = $range[1];
} else {
$range_from = 0;
$range_to = $size - 1;
}
$ps3 = false;
$allheaders = getallheaders();
if (isset($allheaders['User-Agent']) && $allheaders['User-Agent'] == "PLAYSTATION 3") {
$ps3 = true;
}
if ($ps3) {
// ps3 is picky and bizarre.
if ($range_from > $size) {
// This happens if the ps3 thinks the file
// is larger than it is, and sending a
// This is supposed to be a read of the id3v1 tag at
// the end of a file (128 bytes), or the lyrics tag
// (138 bytes)
$requested = $range_to - $range_from + 1;
$range_from = $size - $requested;
$range_to = $size - 1;
header("HTTP/1.1 206 Partial content");
} else {
if ($range_from == 0 && $size == $range_to + 1) {
header("HTTP/1.1 200 OK");
} else {
header("HTTP/1.1 206 Partial content");
header("CONTENT-RANGE: bytes {$range_from}-{$range_to}/{$size}");
}
}
header("transferMode.dlna.org: Streaming");
header("contentFeatures.dlna.org: DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000");
header("Accept-Ranges: bytes");
header("Connection: keep-alive");
header("Content-Length: " . ($size - $range_from));
} else {
if ($range === false) {
// Content length has already been sent
header("Content-Length: " . (string) $size);
} else {
header("HTTP/1.1 206 Partial Content");
header("Accept-Range: bytes");
header("Content-Length: " . ($size - $range_from));
header("Content-Range: bytes {$range_from}" . "-" . $range_to . "/{$size}");
}
}
if ($contentTypeFor !== false) {
sendContentType($contentTypeFor);
}
if (!$ps3) {
header("Content-Disposition: inline; filename=\"" . $name . "\"");
header("Expires: " . gmdate("D, d M Y H:i:s", mktime(date("H") + 2, date("i"), date("s"), date("m"), date("d"), date("Y"))) . " GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s", filemtime($path)) . " GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
}
if ($file = fopen($path, 'rb')) {
@set_time_limit(0);
fseek($file, $range_from);
while (!feof($file) and connection_status() == 0 and ($cur_pos = ftell($file)) < $range_to + 1) {
print fread($file, min(1024 * $speed_limit, $range_to + 1 - $cur_pos));
flush();
if ($limit !== false) {
sleep(1);
}
}
$status = connection_status() == 0;
fclose($file);
@set_time_limit(30);
}
// Now let's unset what they are playing
$be = new jzBackend();
$be->unsetPlaying($_GET['jz_user'], $_GET['sid']);
return $status;
}