问题描述
我在服务器端有一个带有laravel(内腔)的ios应用程序.我正在尝试在服务器上播放应用程序中的视频.
I have an ios app with laravel (lumen) on the server side. I am trying to play the videos in the server, on application.
我使用的播放器播放具有直接链接(例如vine视频链接)的视频,但是当我在本地服务器上保存相同的vine视频时,该应用程序不会播放该视频.实际上,当我使用api路由尝试视频时,令人惊讶的是它在Chrome上播放了视频!但是在应用程序端,我收到错误消息:
I am using a Player that plays videos with a direct link (e.g vine video link), however when I save the same vine video on my local server, the application doesn't play the video. In fact, when I try the video with my api route, surprisingly it plays the video on Chrome! But on the application end, I receive error:
((请注意,如果我将相同的mp4文件复制到xCode项目中,则将其添加到复制捆绑包资源"上,并尝试使用fileWithPath,它可以正常工作.因此,我相信它肯定是由服务器而不是服务器引起的) vidoo文件/编解码器.)
我的路线: $app->get('/player/{filename}', 'PlayerController@show');
方法:
public function show ($filename)
{
$this->playVideo($filename, 'recordings');
}
public function playVideo($filename, $showType)
{
if (file_exists("../uploads/" . $showType . "/" . $filename)) {
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$type = finfo_file($finfo, "../uploads/" . $showType . "/" . $filename);
header("Content-Type: " . $type);
readfile("../uploads/" . $showType . "/" . $filename);
}
}
回顾一下我的问题,该视频正在Chrome上播放,但收到"12939"-移动应用上的服务器配置不正确".
To recap my problem, the video is playing on Chrome but receiving '12939' -'Server is not correctly configured' on the mobile app.
我尝试按照 Apple文档:
curl --range 0-99 http://myapi.dev/test.mp4 -o /dev/null
但是文档说:
我收到了100%,它为我下载了整个文件,所以我认为这是我的问题.但是我不确定如何克服这个问题?我究竟做错了什么?我该怎么办?
I received 100% and it downloaded the whole file for me, so I believe this is my problem. But I am not sure how to overcome this issue? What am I doing wrong? What should I do?
推荐答案
总而言之,这解决了我的问题:
-
将其放置到VideoController:
Placed this to VideoController:
public function streamVideo()
{
$video_path = 'somedirectory/somefile.mp4';
$stream = new VideoStream($video_path);
$stream->start();
}
,然后在app > helpers > VideoStream.php
中创建文件:
and then created a file in app > helpers > VideoStream.php
:
<?php
{
private $path = "";
private $stream = "";
private $buffer = 102400;
private $start = -1;
private $end = -1;
private $size = 0;
function __construct($filePath)
{
$this->path = $filePath;
}
/**
* * Open stream
* */
private function open()
{
if (!($this->stream = fopen($this->path, 'rb'))) {
die('Could not open stream for reading');
}
}
/**
* * Set proper header to serve the video content
* */
private function setHeader()
{
ob_get_clean();
header("Content-Type: video/mp4");
header("Cache-Control: max-age=2592000, public");
header("Expires: ".gmdate('D, d M Y H:i:s', time()+2592000) . ' GMT');
header("Last-Modified: ".gmdate('D, d M Y H:i:s', @filemtime($this->path)) . ' GMT' );
$this->start = 0;
$this->size = filesize($this->path);
$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);
}
}
/**
* * close curretly opened stream
* */
private function end()
{
fclose($this->stream);
exit;
}
/**
* * perform the streaming of calculated range
* */
private function stream()
{
$i = $this->start;
set_time_limit(0);
while(!feof($this->stream) && $i <= $this->end) {
$bytesToRead = $this->buffer;
if(($i+$bytesToRead) > $this->end) {
$bytesToRead = $this->end - $i + 1;
}
$data = fread($this->stream, $bytesToRead);
echo $data;
flush();
$i += $bytesToRead;
}
}
/**
* * Start streaming video content
* */
function start()
{
$this->open();
$this->setHeader();
$this->stream();
$this->end();
}
}
来源: http://laravel .io/forum/10-06-2014-streaming-video-files-with-laravel
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