Using cloud video to implement online education and anchor system

Anchors and game anchors are very popular recently. Compared with other web applications, live video streaming is still a bit complicated. I built a server using FMS to test it, but the live broadcast is still not stable enough. Later, I tried the Alibaba Cloud video service and found it ok, but it did not provide a client. Then I found NetEase Cloud Video, which provides a client. I tried it out and found that the latency of NetEase Cloud was lower than that of Alibaba Cloud, so I chose it as the live video service. The API examples of NetEase Cloud are in Java. I asked customer service if they have PHP, and then sent me an API of NetEase Cloud. There is no way to write one myself, and the interface is simple.

class v163Class{
private $AppKey;                //开发者平台分配的AppKey
private $AppSecret;             //开发者平台分配的AppSecret,可刷新
private $Nonce;                    //随机数（最大长度128个字符）
private $CurTime;                 //当前UTC时间戳，从1970年1月1日0点0 分0 秒开始到现在的秒数（String）
private $CheckSum;                //SHA1（AppSecret + Nonce + CurTime），三个参数拼接的字符串，进行SHA1哈希计算，转化成16进制字符（String，小写）
const   HEX_DIGITS = "0123456789abcdef";
public function __construct（$AppKey,$AppSecret）{
$this->AppKey    = $AppKey;
$this->AppSecret = $AppSecret;
}
/**生成验证码**/
public function checkSumBuilder（）{
//此部分生成随机字符串
$hex_digits = self::HEX_DIGITS;
$this->Nonce;
for（$i=0;$i<128;$i++）{            //随机字符串最大128个字符，也可以小于该数
$this->Nonce.= $hex_digits[rand（0,15）];
}
$this->CurTime = （string）（time（））；    //当前时间戳，以秒为单位
$join_string = $this->AppSecret.$this->Nonce.$this->CurTime;
$this->CheckSum = sha1（$join_string）；
}
/*****post请求******/
public function postDataCurl（$url,$data=array（））{
$this->checkSumBuilder（）；        //发送请求前需先生成checkSum
if（！empty（$data））{
$json=json_encode（$data）；
}else{
$json="";
}
$timeout = 5000;
$http_header = array（
&#39;AppKey:&#39;.$this->AppKey,
&#39;Nonce:&#39;.$this->Nonce,
&#39;CurTime:&#39;.$this->CurTime,
&#39;CheckSum:&#39;.$this->CheckSum,
&#39;Content-Type: application/json;charset=utf-8;&#39;,
&#39;Content-Length: &#39; . strlen（$json）
）；
$ch = curl_init（）；
curl_setopt （$ch, CURLOPT_URL, $url）；
curl_setopt （$ch, CURLOPT_POST, 1）；
curl_setopt （$ch, CURLOPT_POSTFIELDS, $json）；
curl_setopt （$ch, CURLOPT_HEADER, false）；
curl_setopt （$ch, CURLOPT_HTTPHEADER,$http_header）；
curl_setopt （$ch, CURLOPT_SSL_VERIFYPEER,false）；
curl_setopt （$ch, CURLOPT_CONNECTTIMEOUT, $timeout）；
curl_setopt （$ch, CURLOPT_RETURNTRANSFER, 1）；
$result = curl_exec（$ch）；
if （false === $result） {
$result =  curl_errno（$ch）；
}
curl_close（$ch）；
return json_decode（$result,true） ;
}
/***频道添加***/
public function channel_add（$name,$type=0）{
$url="https://vcloud.163.com/app/channel/create";
return $data=$this->postDataCurl（$url,array（"name"=>$name,"type"=>$type））；
}
/****频道更新*****/
public function channel_update（$name,$cid,$type=0）{
$url="https://vcloud.163.com/app/channel/update";
return $data=$this->postDataCurl（$url,array（"name"=>$name,"cid"=>$cid,"type"=>$type））；
}
/****频道删除******/
public function channel_delete（$cid）{
$url="https://vcloud.163.com/app/channel/delete";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
/****获取频道信息******/
public function channel_get（$cid）{
$url="https://vcloud.163.com/app/channelstats";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
/***
获取频道列表
records    int    单页记录数，默认值为10    否
pnum    int    要取第几页，默认值为1    否
ofield    String    排序的域，支持的排序域为：ctime（默认）    否
sort    int    升序还是降序，1升序，0降序，默认为desc    否
**/
public function channel_list（$option=array（"records"=>10,"pnum"=>1,"ofield"=>"ctime","sort"=>1））{
$url="https://vcloud.163.com/app/channellist";
return $data=$this->postDataCurl（$url,$option）；
}
/**重新获取推流地址***/
public function channel_reset（$cid）{
$url="https://vcloud.163.com/app/address";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
/*****
设置频道为录制状态
cid    String    频道ID    是
needRecord    int    1-开启录制； 0-关闭录制    是
format    int    1-flv； 0-mp4    是
duration    int    录制切片时长（分钟），默认120分钟    否
filename    String    录制后文件名，格式为filename_YYYYMMDD-HHmmssYYYYMMDD-HHmmss,
文件名录制起始时间（年月日时分秒） -录制结束时间（年月日时分秒）    否
****/
public function channel_setRecord（$cid,$option=array（））{
$url="https://vcloud.163.com/app/channel/setAlwaysRecord";
return $data=$this->postDataCurl（$url,$option）；
}
/****暂停频道*****/
public function channel_pause（$cid）{
$url="https://vcloud.163.com/app/channel/pause";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
/****批量暂停频道****/
public function channel_pauselist（$cidList）{
$url="https://vcloud.163.com/app/channellist/pause";
return $data=$this->postDataCurl（$url,array（"cidList"=>$cidList））；
}
/****恢复频道*****/
public function channel_resume（$cid）{
$url="https://vcloud.163.com/app/channel/resume";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
/****批量恢复频道****/
public function channel_resumelist（$cidList）{
$url="https://vcloud.163.com/app/channellist/resume";
return $data=$this->postDataCurl（$url,array（"cidList"=>$cidList））；
}
/****获取频道的视频地址*****/
public function channel_videolist（$cid）{
$url="https://vcloud.163.com/app/videolist";
return $data=$this->postDataCurl（$url,array（"cid"=>$cid））；
}
}

NetEase provides a window client, but there is a lag when using it, so I still use OBS directly. OBS is a free live video client with simple configuration. Fill in the url in the stream to start the live broadcast.

This way you can start live streaming.

For the player, just use video.js. [Recommended reading: Node.js video tutorial]

<video id="zbvideo" class="video-js vjs-default-skin" controls preload="none" width="90%" height="398" poster="/static/images/videobg.jpg" data-setup="{}">
<source src="{$data.zb_http}" />
<source src="{$data.zb_hls}"  type="application/x-mpegURL"  />
<source src="{$data.zb_rtmp}" type="rtmp" />
</video>
<link href="/plugin/videojs/video-js.css" rel="stylesheet">
<script src="/plugin/videojs/ie8/videojs-ie8.min.js"></script>
<script src="/plugin/videojs/video.js"></script>

This completes a live broadcast service.

Add a public class to automatically generate a live broadcast address based on the API, refresh the live broadcast address, and automatically delete the live broadcast address when it expires.