js + php 讀取、播放視頻流 兼容firefox，chrome，ie，mac的safari，ios的safari，ios的微信瀏覽器（curl讀取文件流篇） 分類： php javascript

————————————2015-5-13————最新更新———————————————

因爲jwplayer6已經徹底沒法正常工做，如下介紹的方法也已經失效，請更換視頻播放插件，能夠參考樓主的文章：

http://blog.csdn.net/snow_finland/article/details/45670683

————————————————————————————————————————

一、選用jwplayer6做爲前端播放器

二、前端動態加載jwplayer視頻盒子

三、前端加載的視頻非視頻的物理地址，而是經過php讀取的視頻流

四、php經過curl方式讀取的視頻流

加載視頻盒子的部分js代碼

function load_video_player(width,height,fileid,type,title,size){
	var player_w = width;
	var player_h = height;
	var isiphone;
	$.ajax({
		type: 'POST',
		url: 'devicecontroller.php',
		data: 'islink='+islink,
		dataType:"JSON",
		async: false,
		success:function(data){
			if(data.code == 1){
				isiphone = data.data;
			}else{
				isiphone = 0;
			}
		}
	});
	
	var file_path = '/XXX/url?fileid='+fileid+'&type='+type+'&title='+title+'&size='+size+'&isiphone='+isiphone;
	
	var player_wrap = [
		'<div id="J_video_container" class="video_container hide">',
			'<div class="video_box">',
			'</div>',
		'</div>'
	].join('');
	
	var player_box = [
		'<div id="Jwplayer_box">Loading player...</div>'
	].join('');

	if($('#J_video_container').length==0){
		$('#J_video_main').append(player_wrap);
	}
	
	$('#J_video_container').css('height',player_h+'px');
	if($('#Jwplayer_box').length==0){
		$('#J_video_container .video_box').append(player_box);
	}
	$('.video_box').css({'width':player_w+'px','height':player_h+'px'});
	$('#J_video_container').show();
	
	jwplayer("Jwplayer_box").setup({
		'width': player_w,
		'height': player_h,
		'controlbar': 'bottom',
		"autostart":"true",
		'provider': 'video',
		'type': 'mp4',
		'file': file_path
	});
}

其中請求檢查設備和瀏覽器類型的devicecontroller.php代碼

//json_encode中文亂碼問題修正
function arrayRecursive(&$array){  
	foreach ($array as $key => $value) {  
		if (is_array($value)) {  
			arrayRecursive($array[$key]);//若是是數組就進行遞歸操做  
		} else {  
			if(is_string($value)){  
				$temp1= addslashes($value);
				$array[$key]= urlencode($temp1);//若是是字符串就urlencode  
			}else{  
				$array[$key] = $value;  
			}  
		}  
	}  
}  
function JSON($result) {  
	$array=$result;  
	arrayRecursive($array);//先將類型爲字符串的數據進行 urlencode  
	$json = json_encode($array);//再將數組轉成JSON  
	return urldecode($json);//最後將JSON字符串進行urldecode  
}

require_once("Mobile_Detect.php");
$detect = new Mobile_Detect(); 
if($detect->isiPhone() || $detect->isiPad()){
	if($detect->isSafari()|| $detect->isGenericBrowser()){//iphone和ipad上的safari或者微信瀏覽器
		$iphone = 1;
	}else{
		$iphone = 0;
	}
}else{
	$iphone = 0;
}
$data['code']=1;
$data['data']=$iphone;
echo JSON($data);

加載視頻流的php

session_start();

$fileid = $_GET['fileid'];
$isiphone = $_GET['isiphone'];
$file_name = $_GET['title'];
$file_type = $_GET['type'];
$file_size = $_GET['size'];

$cookie = $_SESSION['token'];	

//若是沒有文件名，設置帶擴展名的默認文件名
if(empty($file_name)){
	$type =  substr($file_type,0,5);
	if($type == "video"){
		$type =  substr($file_type,6);
		$file_name = "downfile.".$type;
	}
}

header("Content-type: ".$file_type);
if(isset($_SERVER['HTTP_RANGE'])){
	
	$http_range = $_SERVER['HTTP_RANGE'];
	
	$at = explode('=',$http_range);
	$at = explode('-',$at[1]);
	$start = $at[0];
	if($at[1]==null){
		$end = $file_size - 1;
	}else{
		$end = $at[1];
	}
	$length = $end - $start + 1;

	if($isiphone!=1){
		$url = "/XXX/url/".$fileid;
	
		$curl = curl_init();
		curl_setopt($curl, CURLOPT_URL, $url); 
		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); // 對認證證書來源的檢查     
		curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); // 從證書中檢查SSL加密算法是否存在        	
		curl_setopt($curl, CURLOPT_HEADER, 0); 
		curl_setopt($curl, CURLOPT_TIMEOUT, 30);
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);
		curl_setopt($curl, CURLOPT_HTTPHEADER, Array($cookie));
		
		header('Expires: 0');
		header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
		header('Pragma: public');
		header("Content-Description: File Transfer");
		header("Content-Transfer-Encoding: binary");
		Header("Content-type: ".$file_type);
		Header('Content-Disposition: attacurlment; filename="'.$file_name.'"');
		Header("Content-Length: ".$file_size);
		ob_end_flush();
		flush();
		
		$result = curl_exec($curl);		
		curl_close($curl);
	}else{
	
		header("Accept-Ranges: 0-$length");
		
		set_time_limit(0);
		
		header("Content-Range: bytes $start-$end/$file_size");
		header("Content-Length: $length");

	
		$url2 = "/XXX/url/".$fileid;
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL,$url2);
		
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_HEADER, false);
		
		curl_setopt($ch, CURLOPT_HTTPHEADER, Array($cookie));
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // 對認證證書來源的檢查     
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // 從證書中檢查SSL加密算法是否存在  
		
		curl_setopt($ch, CURLOPT_TIMEOUT, 600); 

		$content = curl_exec($ch);
		curl_close($ch);
		
		$output = substr($content,$start,$length);
		
		echo $output;

		exit;
	}

}else{
	$url = "/XXX/url/".$fileid;
	
	$curl = curl_init();
	curl_setopt($curl, CURLOPT_URL, $url); 
	curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); // 對認證證書來源的檢查     
	curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); // 從證書中檢查SSL加密算法是否存在        	
	curl_setopt($curl, CURLOPT_HEADER, 0); 
	curl_setopt($curl, CURLOPT_TIMEOUT, 30);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);
	curl_setopt($curl, CURLOPT_HTTPHEADER, Array($cookie));
	
	header('Expires: 0');
	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	header('Pragma: public');
	header("Content-Description: File Transfer");
	header("Content-Transfer-Encoding: binary");
	Header("Content-type: ".$file_type);
	Header('Content-Disposition: attacurlment; filename="'.$file_name.'"');
	Header("Content-Length: ".$file_size);
	ob_end_flush();
	flush();
	
	$result = curl_exec($curl);		
	curl_close($curl);
}

補充說明：

一、在js中請求判斷一次設備，並經過js傳遞給php讀取視頻流，而不是在php端讀取視頻流時每次判斷設備：
由於ios safari在第一次（會設定$_SERVER['HTTP_RANGE']）請求的時候，能判斷出是ios的safari設備

在第二次以及以後的請求時，沒法判斷出是ios的safari設備

二、判斷是不是ios的safari，在以後的文章中介紹