Muestra un video para html5 recuperado de una url. Crea una especie de pasarela desde un archivo alojado en una web a nuestro archivo php.
Creando una pasarela con curl.
https://github.com/josAlba/videoStreamCurl
<?php
/*
* JSA VIDEO STREAM CURL
* @autor: JosAlba
* @web: jose.alba@jsascript.com
*/
$video = '';
$video = '';
$videoTest = '';
if(isset($_GET['v'])){
$video = $_GET['v'];
}else{
echo 'ERROR URL';
exit();
}
$curlVideo = new VideoStreamCurl($video);
if(isset($_GET['test'])){
if(isset($_GET['testVideo'])){
echo 'ERROR VIDEO LOCAL';
exit();
}
/*
* TEST MODE.
*
*
*/
$videoTest = $_GET['testVideo'];
$curlVideo->test($videoTest,$_GET['test']);
}else{
/*
* VIDEO MODE.
*
*
*/
$curlVideo->start();
}
class VideoStreamCurl{
private $path = "";
private $buffer = 102400;
private $start = -1;
private $end = -1;
private $size = 0;
private $cache ='';
private $testMODE = false;
function __construct($filePath){
$this->path = $filePath;
}
public function test($localFile,$bytes){
$this->testMODE = true;
$b = array();
$b['Size'] = $this->curlSize();
$b['MaxReadBytes'] = $bytes;
$this->curlDownload(0,($bytes-1));
$b['BytesCurl'] = $this->cache;
$a = fopen($localFile,'rb');
$b['BytesLocal'] = fread($a, $bytes);
$b['Header'] = $this->testHeader();
$b['Start'] = $this->start;
$b['End'] = $this->end;
fclose($a);
echo '<pre>';
print_r($b);
echo '</pre>';
}
private function open(){
//COMPROBAR SI SE PUEDE ABRIR LA URL.
$ch = curl_init($this->path);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
if(curl_exec($ch) === false)
{
echo 'ERROR URL';
exit();
}
curl_close($ch);
}
private function testHeader(){
ob_get_clean();
$array=array();
$array[] = 'Content-Type: video/mp4';
$array[] = 'Cache-Control: max-age=2592000, public';
$array[] = "Expires: ".gmdate('D, d M Y H:i:s', time()+2592000) . ' GMT';
$this->start = 0;
$this->size = $this->curlSize(); //TAMAÑO DEL ARCHIVO.
$this->end = $this->size - 1;
$array[] = "Accept-Ranges: 0-".$this->end;
if (isset($_SERVER['HTTP_RANGE'])) {
$c_start = $this->start;
$c_end = $this->end;
list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
if (strpos($range, ',') !== false) {
$array[] = 'HTTP/1.1 416 Requested Range Not Satisfiable';
$array[] = "Content-Range: bytes $this->start-$this->end/$this->size";
exit;
}
if ($range == '-') {
$c_start = $this->size - substr($range, 1);
}else{
$range = explode('-', $range);
$c_start = $range[0];
$c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $c_end;
}
$c_end = ($c_end > $this->end) ? $this->end : $c_end;
if ($c_start > $c_end || $c_start > $this->size - 1 || $c_end >= $this->size) {
$array[] = 'HTTP/1.1 416 Requested Range Not Satisfiable';
$array[] = "Content-Range: bytes $this->start-$this->end/$this->size";
exit;
}
$this->start = $c_start;
$this->end = $c_end;
$length = $this->end - $this->start + 1;
//fseek($this->stream, $this->start);
$array[] = 'HTTP/1.1 206 Partial Content';
$array[] = "Content-Length: ".$length;
$array[] = "Content-Range: bytes $this->start-$this->end/".$this->size;
}
return $array;
}
private function setHeader(){
ob_get_clean();
header("Content-Type: video/mp4");
header("Cache-Control: max-age=2592000, public");
header("Expires: ".gmdate('D, d M Y H:i:s', time()+2592000) . ' GMT');
$this->start = 0;
$this->size = $this->curlSize(); //TAMAÑO DEL ARCHIVO.
$this->end = $this->size - 1;
header("Accept-Ranges: 0-".$this->end);
if (isset($_SERVER['HTTP_RANGE'])) {
$c_start = $this->start;
$c_end = $this->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 $this->start-$this->end/$this->size");
exit;
}
if ($range == '-') {
$c_start = $this->size - substr($range, 1);
}else{
$range = explode('-', $range);
$c_start = $range[0];
$c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $c_end;
}
$c_end = ($c_end > $this->end) ? $this->end : $c_end;
if ($c_start > $c_end || $c_start > $this->size - 1 || $c_end >= $this->size) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $this->start-$this->end/$this->size");
exit;
}
$this->start = $c_start;
$this->end = $c_end;
$length = $this->end - $this->start + 1;
//fseek($this->stream, $this->start);
header('HTTP/1.1 206 Partial Content');
header("Content-Length: ".$length);
header("Content-Range: bytes $this->start-$this->end/".$this->size);
}
else
{
header("Content-Length: ".$this->size);
}
}
private function curlSize(){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->path);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
$data = curl_exec($ch);
$size = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
curl_close($ch);
return $size;
}
private function curlDownload($start,$end){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->path);
curl_setopt($ch, CURLOPT_RANGE, $start.'-'.$end); //ENVIAMOS LA PETICION DE EL RANGE QUE QUEREMOS.
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
curl_setopt($ch, CURLOPT_ENCODING, 'identity'); //*importante: que sea una copia identica sin comprimir.
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $chunk){
//ESCRITURA DE LOS BYTES.
if($this->testMODE==true){
$this->cache = $chunk;
}else{
echo $chunk;
}
return strlen($chunk);
});
$result = curl_exec($ch);
curl_close($ch);
}
private function stream(){
/*
*
* CURL, PETICION DE CURL CON LOS BYTES QUE NECESITA.
*
*/
$i = $this->start;
$e = $this->end;
set_time_limit(0);
$this->curlDownload($i,$e);
}
function start(){
$this->open();
$this->setHeader();
$this->stream();
}
}
?>
jsascript 