【vue2】前端如何播放rtsp 視頻流，拿到rtsp視頻流地址如何處理，海康視頻rtsp h264 如何播放

文章目錄

• • 測試
  • 以vue2 爲例
  • • 新建 webrtcstreamer.js
    • 下載webrtc-streamer
    • video.vue
    • 頁面中調用

      最近在寫vue2 項目其中有個需求是實時播放攝像頭的視頻，攝像頭是 海康的設備，搞了很長時間終于監控視頻出來了，記錄一下，放置下次遇到。文章有點長，略顯啰嗦請耐心看完。

      測試

      測試？測試什麽？測試rtsp視頻流能不能播放。

      video mediaplay官網 即（VLC）

      下載、安裝完VLC後，打開VLC 點擊媒體 -> 打開網絡串流

      

      将rtsp地址粘貼進去

      

      不能播放的話，rtsp視頻流地址有問題。

      注意：視頻可以播放也要查看視頻的格式，如下

      右擊視頻選擇工具->編解碼器信息

      

      如果編解碼是H264的，那麽我的這種方法可以。如果是H265或者其他的話就要登錄海康後台修改一下

      

      以vue2 爲例

      新建 webrtcstreamer.js

      在public文件夾下新建webrtcstreamer.js文件，直接複制粘貼，無需修改

      Python

      var WebRtcStreamer = (function() {
      /** 
       * Interface with WebRTC-streamer API
       * @constructor
       * @param {string} videoElement - id of the video element tag
       * @param {string} srvurl -  url of webrtc-streamer (default is current location)
      */
      var WebRtcStreamer = function WebRtcStreamer (videoElement, srvurl) {
      	if (typeof videoElement === "string") {
      		this.videoElement = document.getElementById(videoElement);
      	} else {
      		this.videoElement = videoElement;
      	}
      	this.srvurl           = srvurl || location.protocol+"//"+window.location.hostname+":"+window.location.port;
      	this.pc               = null;    
      	this.mediaConstraints = { offerToReceiveAudio: true, offerToReceiveVideo: true };
      	this.iceServers = null;
      	this.earlyCandidates = [];
      }
      WebRtcStreamer.prototype._handleHttpErrors = function (response) {
          if (!response.ok) {
              throw Error(response.statusText);
          }
          return response;
      }
      /** 
       * Connect a WebRTC Stream to videoElement 
       * @param {string} videourl - id of WebRTC video stream
       * @param {string} audiourl - id of WebRTC audio stream
       * @param {string} options -  options of WebRTC call
       * @param {string} stream  -  local stream to send
      */
      WebRtcStreamer.prototype.connect = function(videourl, audiourl, options, localstream) {
      	this.disconnect();
      	
      	// getIceServers is not already received
      	if (!this.iceServers) {
      		console.log("Get IceServers");
      		
      		fetch(this.srvurl + "/api/getIceServers")
      			.then(this._handleHttpErrors)
      			.then( (response) => (response.json()) )
      			.then( (response) =>  this.onReceiveGetIceServers(response, videourl, audiourl, options, localstream))
      			.catch( (error) => this.onError("getIceServers " + error ))
      				
      	} else {
      		this.onReceiveGetIceServers(this.iceServers, videourl, audiourl, options, localstream);
      	}
      }
      /** 
       * Disconnect a WebRTC Stream and clear videoElement source
      */
      WebRtcStreamer.prototype.disconnect = function() {		
      	if (this.videoElement?.srcObject) {
      		this.videoElement.srcObject.getTracks().forEach(track => {
      			track.stop()
      			this.videoElement.srcObject.removeTrack(track);
      		});
      	}
      	if (this.pc) {
      		fetch(this.srvurl + "/api/hangup?peerid=" + this.pc.peerid)
      			.then(this._handleHttpErrors)
      			.catch( (error) => this.onError("hangup " + error ))
      		
      		try {
      			this.pc.close();
      		}
      		catch (e) {
      			console.log ("Failure close peer connection:" + e);
      		}
      		this.pc = null;
      	}
      }    
      /*
      * GetIceServers callback
      */
      WebRtcStreamer.prototype.onReceiveGetIceServers = function(iceServers, videourl, audiourl, options, stream) {
      	this.iceServers       = iceServers;
      	this.pcConfig         = iceServers || {"iceServers": [] };
      	try {            
      		this.createPeerConnection();
      		var callurl = this.srvurl + "/api/call?peerid=" + this.pc.peerid + "&url=" + encodeURIComponent(videourl);
      		if (audiourl) {
      			callurl += "&audiourl="+encodeURIComponent(audiourl);
      		}
      		if (options) {
      			callurl += "&options="+encodeURIComponent(options);
      		}
      		
      		if (stream) {
      			this.pc.addStream(stream);
      		}
                      // clear early candidates
      		this.earlyCandidates.length = 0;
      		
      		// create Offer
      		this.pc.createOffer(this.mediaConstraints).then((sessionDescription) => {
      			console.log("Create offer:" + JSON.stringify(sessionDescription));
      			
      			this.pc.setLocalDescription(sessionDescription)
      				.then(() => {
      					fetch(callurl, { method: "POST", body: JSON.stringify(sessionDescription) })
      						.then(this._handleHttpErrors)
      						.then( (response) => (response.json()) )
      						.catch( (error) => this.onError("call " + error ))
      						.then( (response) =>  this.onReceiveCall(response) )
      						.catch( (error) => this.onError("call " + error ))
      				
      				}, (error) => {
      					console.log ("setLocalDescription error:" + JSON.stringify(error)); 
      				});
      			
      		}, (error) => { 
      			alert("Create offer error:" + JSON.stringify(error));
      		});
      	} catch (e) {
      		this.disconnect();
      		alert("connect error: " + e);
      	}	    
      }
      WebRtcStreamer.prototype.getIceCandidate = function() {
      	fetch(this.srvurl + "/api/getIceCandidate?peerid=" + this.pc.peerid)
      		.then(this._handleHttpErrors)
      		.then( (response) => (response.json()) )
      		.then( (response) =>  this.onReceiveCandidate(response))
      		.catch( (error) => this.onError("getIceCandidate " + error ))
      }
      					
      /*
      * create RTCPeerConnection 
      */
      WebRtcStreamer.prototype.createPeerConnection = function() {
      	console.log("createPeerConnection  config: " + JSON.stringify(this.pcConfig));
      	this.pc = new RTCPeerConnection(this.pcConfig);
      	var pc = this.pc;
      	pc.peerid = Math.random();		
      	
      	pc.onicecandidate = (evt) => this.onIceCandidate(evt);
      	pc.onaddstream    = (evt) => this.onAddStream(evt);
      	pc.oniceconnectionstatechange = (evt) => {  
      		console.log("oniceconnectionstatechange  state: " + pc.iceConnectionState);
      		if (this.videoElement) {
      			if (pc.iceConnectionState === "connected") {
      				this.videoElement.style.opacity = "1.0";
      			}			
      			else if (pc.iceConnectionState === "disconnected") {
      				this.videoElement.style.opacity = "0.25";
      			}			
      			else if ( (pc.iceConnectionState === "failed") || (pc.iceConnectionState === "closed") )  {
      				this.videoElement.style.opacity = "0.5";
      			} else if (pc.iceConnectionState === "new") {
      				this.getIceCandidate();
      			}
      		}
      	}
      	pc.ondatachannel = function(evt) {  
      		console.log("remote datachannel created:"+JSON.stringify(evt));
      		
      		evt.channel.onopen = function () {
      			console.log("remote datachannel open");
      			this.send("remote channel openned");
      		}
      		evt.channel.onmessage = function (event) {
      			console.log("remote datachannel recv:"+JSON.stringify(event.data));
      		}
      	}
      	pc.onicegatheringstatechange = function() {
      		if (pc.iceGatheringState === "complete") {
      			const recvs = pc.getReceivers();
      		
      			recvs.forEach((recv) => {
      			  if (recv.track && recv.track.kind === "video") {
      				console.log("codecs:" + JSON.stringify(recv.getParameters().codecs))
      			  }
      			});
      		  }
      	}
      	try {
      		vAR DataChannel = pc.createDataChannel("ClientDataChannel");
      		dataChannel.onopen = function() {
      			console.log("local datachannel open");
      			this.send("local channel openned");
      		}
      		dataChannel.onmessage = function(evt) {
      			console.log("local datachannel recv:"+JSON.stringify(evt.data));
      		}
      	} catch (e) {
      		console.log("Cannor create datachannel error: " + e);
      	}	
      	
      	console.log("Created RTCPeerConnnection with config: " + JSON.stringify(this.pcConfig) );
      	return pc;
      }
      /*
      * RTCPeerConnection IceCandidate callback
      */
      WebRtcStreamer.prototype.onIceCandidate = function (event) {
      	if (event.candidate) {
      		if (this.pc.currentRemoteDescription)  {
      			this.addIceCandidate(this.pc.peerid, event.candidate);					
      		} else {
      			this.earlyCandidates.push(event.candidate);
      		}
      	} 
      	else {
      		console.log("End of candidates.");
      	}
      }
      WebRtcStreamer.prototype.addIceCandidate = function(peerid, candidate) {
      	fetch(this.srvurl + "/api/addIceCandidate?peerid="+peerid, { method: "POST", body: JSON.stringify(candidate) })
      		.then(this._handleHttpErrors)
      		.then( (response) => (response.json()) )
      		.then( (response) =>  {console.log("addIceCandidate ok:" + response)})
      		.catch( (error) => this.onError("addIceCandidate " + error ))
      }
      				
      /*
      * RTCPeerConnection AddTrack callback
      */
      WebRtcStreamer.prototype.onAddStream = function(event) {
      	console.log("Remote track added:" +  JSON.stringify(event));
      	
      	this.videoElement.srcObject = event.stream;
      	var promise = this.videoElement.play();
      	if (promise !== undefined) {
      	  promise.catch((error) => {
      		console.warn("error:"+error);
      		this.videoElement.setAttribute("controls", true);
      	  });
      	}
      }
      		
      /*
      * AJAX /call callback
      */
      WebRtcStreamer.prototype.onReceiveCall = function(dataJson) {
      	console.log("offer: " + JSON.stringify(dataJson));
      	var descr = new RTCSessionDescription(dataJson);
      	this.pc.setRemoteDescription(descr).then(() =>  { 
      			console.log ("setRemoteDescription ok");
      			while (this.earlyCandidates.length) {
      				var candidate = this.earlyCandidates.shift();
      				this.addIceCandidate(this.pc.peerid, candidate);				
      			}
      		
      			this.getIceCandidate()
      		}
      		, (error) => { 
      			console.log ("setRemoteDescription error:" + JSON.stringify(error)); 
      		});
      }	
      /*
      * AJAX /getIceCandidate callback
      */
      WebRtcStreamer.prototype.onReceiveCandidate = function(dataJson) {
      	console.log("candidate: " + JSON.stringify(dataJson));
      	if (dataJson) {
      		for (var i=0; i      { console.log ("addIceCandidate OK"); }
      				, (error) => { console.log ("addIceCandidate error:" + JSON.stringify(error)); } );
      		}
      		this.pc.addIceCandidate();
      	}
      }
      /*
      * AJAX callback for Error
      */
      WebRtcStreamer.prototype.onError = function(status) {
      	console.log("onError:" + status);
      }
      return WebRtcStreamer;
      })();
      if (typeof window !== 'undefined' && typeof window.document !== 'undefined') {
      	window.WebRtcStreamer = WebRtcStreamer;
      }
      if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
      	module.exports = WebRtcStreamer;
      }
      

      下載webrtc-streamer

      資源在最上面

      也可以去github上面下載：webrtc-streamer

      下載完後解壓，打開，啓動

      

      出現下面這個頁面就是啓動成功了，留意這裏的端口号，就是我選出來的部分，一般都是默認8000，不排除其他情況

      

      檢查一下也沒用啓動成功，http://127.0.0.1:8000/ 粘貼到浏覽器地址欄回車查看，啓動成功能看到電腦當前頁面（這裏的8000就是啓動的端口号，啓動的是多少就訪問多少）

      video.vue

      新建video.js （位置自己決定，後面要引入的）

      video.js中要修改兩個地方，第一個是引入webrtcstreamer.js路徑，第二個地方是IP地址要要修改爲自己的ip加上啓動的端口号（即上面的8000），不知道電腦ip地址的看下面一行

      怎麽查看自己的ip地址打開cmd 黑窗口（即dos窗口），輸入ipconfig回車，在裏面找到 IPv4 地址 就是了

      Python

        
          
          
        
      
      
      import WebRtcStreamer from "../../public/webrtcstreamer";
      export default {
        name: "videoCom",
        props: {
          rtsp: {
            type: String,
            required: true,
          },
          isOn: {
            type: Boolean,
            default: false,
          },
          spareId: {
            type: Number,
          },
          selectStatus: {
            type: Boolean,
            default: false,
          },
        },
        data() {
          return {
            socket: null,
            result: null, // 返回值
            pic: null,
            webRtcServer: null,
            clickCount: 0, // 用來計數點擊次數
          };
        },
        watch: {
          rtsp() {
            // do something
            console.log(this.rtsp);
            this.webRtcServer.disconnect();
            this.initVideo();
          },
        },
        destroyed() {
          this.webRtcServer.disconnect();
        },
        beforeCreate() {
          window.onbeforeunload = () => {
            this.webRtcServer.disconnect();
          };
        },
        created() {},
        mounted() {
          this.initVideo();
        },
        methods: {
          initVideo() {
            try {
              //連接後端的IP地址和端口
              this.webRtcServer = new WebRtcStreamer(
                this.$refs.video,
                `http://192.168.0.24:8000`
              );
              //向後端發送rtsp地址
              this.webRtcServer.connect(this.rtsp);
            } catch (error) {
              console.log(error);
            }
          },
          /* 處理雙擊 單機 */
          dbClick() {
            this.clickCount++;
            if (this.clickCount === 2) {
              this.btnFull(); // 雙擊全屏
              this.clickCount = 0;
            }
            setTimeout(() => {
              if (this.clickCount === 1) {
                this.clickCount = 0;
              }
            }, 250);
          },
          /* 視頻全屏 */
          btnFull() {
            const elVideo = this.$refs.video;
            if (elVideo.webkitRequestFullScreen) {
              elVideo.webkitRequestFullScreen();
            } else if (elVideo.mozRequestFullScreen) {
              elVideo.mozRequestFullScreen();
            } else if (elVideo.requestFullscreen) {
              elVideo.requestFullscreen();
            }
          },
          /* 
          ison用來判斷是否需要更換視頻流
          dbclick函數用來雙擊放大全屏方法
          */
          handleClickVideo() {
            if (this.isOn) {
              this.$emit("selectVideo", this.spareId);
              this.dbClick();
            } else {
              this.btnFull();
            }
          },
        },
      };
      
      
      .active-video-border {
        border: 2px salmon solid;
      }
      #video-contianer {
        position: relative;
        // width: 100%;
        // height: 100%;
        .video {
          // width: 100%;
          // height: 100%;
          // object-fit: cover;
        }
        .mask {
          position: absolute;
          top: 0;
          left: 0;
          width: 100%;
          height: 100%;
          cursor: pointer;
        }
      }
      
      

      頁面中調用

      在頁面中引入video.vue，并注冊。将rtsp視頻地址傳過去就好了，要顯示幾個視頻就調用幾次

      

      回到頁面看，rtsp視頻已經可以播放了