通信，利用Agora实现"/>
搞定P2P跨平台视频通信，利用Agora实现
实现了ubuntu和web应用之间的跨平台视频通信
提前准备技能：html，js，c++，linux
准备工作：下载Agora的两个SDK，Web和Linux C++
下载地址：/downloads
下载版本：
Agora_Web_SDK_v2_8_0_FULL
OpenVideoCall-Linux 4（此版本为Agora的测试版）
在ubuntu行示例程序，发送视频流：
首先在 [Agora.io 注册](/) 注册账号，并创建自己的测试项目，获取到 AppID。将 AppID 填写进 run.sh
``` --appId "your app ID" ```
然后在 [Agora.io SDK](/) 下载 **视频通话 + 直播 SDK**，解压后将其中**libs**文件夹下的
- libagora_rtc_sdk.so
两个文件复制到本项目的 “OpenVideoCall/libs” 文件夹下。
在sample/OpenVideoCall下 输入命令 make， 便可编译生成openVideoCall demo。在run.sh中配置执行demo所需要的参数。
openVideoCall 为命令行程序。使用方法如下：
command:
- open 开启通话。
- close 关闭通话。
- enable_video 打开/关闭 全局视频功能，enable_video 0 为关闭视频功能，enable_video 1为打开视频功能
- enable_audio 打开/关闭 全局音频功能
- enable_local_video 打开/关闭 本地视频功能，enable_local_video 0 为关闭视频功能，enable_local_video 1为打开视频功能
- mute_local_video 打开/关闭 本地视频流发送，mute_local_video 0 为打开本地视频流发送，mute_local_video 1为关闭本地视频流发送
- mute_local_audio 打开/关闭 本地音频流发送，mute_local_video 0 为打开本地音频流发送，mute_local_video 1为关闭本地音频流发送
- print_device_info 打印设备信息
- set_cur_camera 设置当前工作的摄像头，set_cur_camera ‘device id ’ ，device id可以通过print_device_info 得到
- exit 退出程序
记得更改APPID，并且该ID为无app证书验证的版本！！！
Web端接收视频流页面：
<!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');});// 这里使用agora_remote + remoteStream.getId()作为dom元素的id。 }</script>
</head>
<body>
<input type="button" name="confirmAlter" value="recv" onclick="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端推送视频流：
<!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" onclick="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>该代码博主测试成功过
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