實現了ubuntu和web應用之間的跨平臺視頻通信
提前準備技能：html，js，c++，linux
準備工作：下載Agora的兩個SDK，Web和Linux C++
下載地址：https://docs.agora.io/cn/Agora%20Platform/downloads
下載版本：
Agora_Web_SDK_v2_8_0_FULL
OpenVideoCall-Linux 4（此版本爲Agora的測試版）
在ubuntu行示例程序，發送視頻流：
首先在 [Agora.io 註冊](https://dashboard.agora.io/cn/signup/) 註冊賬號，並創建自己的測試項目，獲取到 AppID。將 AppID 填寫進 run.sh
``` --appId "your app ID" ```
然後在 [Agora.io SDK](https://www.agora.io/cn/blog/download/) 下載 **視頻通話 + 直播 SDK**，解壓後將其中**libs**文件夾下的
- libagora_rtc_sdk.so
兩個文件複製到本項目的 “OpenVideoCall/libs” 文件夾下。
在sample/OpenVideoCall下 輸入命令 make， 便可編譯生成openVideoCall demo。在run.sh中配置執行demo所需要的參數。
openVideoCall 爲命令行程序。使用方法如下：
command:
- open 開啓通話。
- close 關閉通話。
- enable_video 打開/關閉 全局視頻功能，enable_video 0 爲關閉視頻功能，enable_video 1爲打開視頻功能
- enable_audio 打開/關閉 全局音頻功能
- enable_local_video 打開/關閉 本地視頻功能，enable_local_video 0 爲關閉視頻功能，enable_local_video 1爲打開視頻功能
- mute_local_video 打開/關閉 本地視頻流發送，mute_local_video 0 爲打開本地視頻流發送，mute_local_video 1爲關閉本地視頻流發送
- mute_local_audio 打開/關閉 本地音頻流發送，mute_local_video 0 爲打開本地音頻流發送，mute_local_video 1爲關閉本地音頻流發送
- print_device_info 打印設備信息
- set_cur_camera 設置當前工作的攝像頭，set_cur_camera ‘device id ’ ，device id可以通過print_device_info 得到
- exit 退出程序
記得更改APPID，並且該ID爲無app證書驗證的版本！！！
Web端接收視頻流頁面：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Test</title>
<script type""text/javascript" src="./AgoraRTCSDK-2.8.0.js"></script>
<script>
var APPID='**************';
var CHCHANNEL_KEY=null;
var CHANNEL_NAME='123456';
var UID='12345';
var client = AgoraRTC.createClient({mode: 'live'});
client.init(APPID, function(){console.log("AgoraRTC client initialized");}, function(err){console.log("AgoraRTC client init failed", err);});
client.join(CHCHANNEL_KEY,CHANNEL_NAME,null, function(UID) {console.log("User " + UID + " join channel successfully");}, function(err) {console.log("Join channel failed", err);});
function recv(){
console.log("Start mon");
client.on('stream-added', function (evt) {var stream = evt.stream;console.log("New stream added: " + stream.getId());client.subscribe(stream, function (err) {console.log("Subscribe stream failed", err);});
});
client.on('stream-subscribed',function(evt){
var remoteStream = evt.stream;
console.log("Subscribe remote stream successfully: " + remoteStream.getId());
remoteStream.play('agora_remote');
});
// 這裏使用agora_remote + remoteStream.getId()作爲dom元素的id。
}
</script>
</head>
<body>
<input type="button" name="confirmAlter" value="recv" οnclick="recv()"/>
<div>收到消息：</div>
<div id="video" style="margin:0 auto;">
<div id="agora_remote" style="float:right;width:210px;height:147px;display:inline-block;">video</div>
</div>
</body>
</html>
Web端推送視頻流：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Test</title>
<script type""text/javascript" src="./AgoraRTCSDK-2.8.0.js"></script>
<script>
var APPID='****************';
var CHCHANNEL_KEY=null;
var CHANNEL_NAME='123456';
var UID='1234';
var client = AgoraRTC.createClient({mode: 'live'});
client.init(APPID, function(){console.log("AgoraRTC client initialized");}, function(err){console.log("AgoraRTC client init failed", err);});
client.join(CHCHANNEL_KEY,CHANNEL_NAME,null, function(UID) {console.log("User " + UID + " join channel successfully");}, function(err) {console.log("Join channel failed", err);});
function push(){
localStream = AgoraRTC.createStream({streamID: UID, audio: true, video: true, screen: false});
localStream.setVideoProfile('720p_3');
localStream.on("accessAllowed", function() {console.log("accessAllowed");});
localStream.on("accessDenied", function() {console.log("accessDenied");});
localStream.init(function(){
console.log("getUserMedia successfully");
localStream.play('agora_local');
client.publish(localStream, function (err) {console.log("Publish local stream error: " + err);});
client.on('stream-published', function (evt) {console.log("Publish local stream successfully");});
});
}
</script>
</head>
<body>
<input type="button" name="confirmAlter" value="push" οnclick="push()"/>
<div>收到消息：</div>
<div id="video" style="margin:0 auto;">
<div id="agora_local" style="float:right;width:210px;height:147px;display:inline-block;">video</div>
</div>
</body>
</html>
該代碼博主測試成功過