zhaomingwork
2023-08-23 8257c10627f4e773c62a5f5e15598da0ec607126
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/**
 * Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights
 * Reserved. MIT License  (https://opensource.org/licenses/MIT)
 */
/* 2022-2023 by zhaoming,mali aihealthx.com */
 
 
// 连接; 定义socket连接类对象与语音对象
var wsconnecter = new WebSocketConnectMethod({msgHandle:getJsonMessage,stateHandle:getConnState});
var audioBlob;
 
// 录音; 定义录音对象,wav格式
var rec = Recorder({
    type:"pcm",
    bitRate:16,
    sampleRate:16000,
    onProcess:recProcess
});
 
 
 
 
var sampleBuf=new Int16Array();
// 定义按钮响应事件
var btnStart = document.getElementById('btnStart');
btnStart.onclick = record;
var btnStop = document.getElementById('btnStop');
btnStop.onclick = stop;
btnStop.disabled = true;
btnStart.disabled = true;
 
btnConnect= document.getElementById('btnConnect');
btnConnect.onclick = start;
 
var awsslink= document.getElementById('wsslink');
 
 
var rec_text="";  // for online rec asr result
var offline_text=""; // for offline rec asr result
var info_div = document.getElementById('info_div');
 
var upfile = document.getElementById('upfile');
 
 
 
var isfilemode=false;  // if it is in file mode
var file_ext="";
var file_data_array;  // array to save file data
 
var totalsend=0;
 
 
var now_ipaddress=window.location.href;
now_ipaddress=now_ipaddress.replace("https://","wss://");
now_ipaddress=now_ipaddress.replace("static/index.html","");
var localport=window.location.port;
now_ipaddress=now_ipaddress.replace(localport,"10095");
document.getElementById('wssip').value=now_ipaddress;
addresschange();
function addresschange()
{   
    
    var Uri = document.getElementById('wssip').value; 
    document.getElementById('info_wslink').innerHTML="点此处手工授权(IOS手机)";
    Uri=Uri.replace(/wss/g,"https");
    console.log("addresschange uri=",Uri);
    
    awsslink.onclick=function(){
        window.open(Uri, '_blank');
        }
    
}
upfile.onclick=function()
{
        btnStart.disabled = true;
        btnStop.disabled = true;
        btnConnect.disabled=false;
    
}
upfile.onchange = function () {
      var len = this.files.length;  
            for(let i = 0; i < len; i++) {
                let fileAudio = new FileReader();
                fileAudio.readAsArrayBuffer(this.files[i]);  
                file_ext=this.files[i].name.split('.').pop().toLowerCase();
 
                fileAudio.onload = function() {
                 var audioblob= fileAudio.result;
                 file_data_array=audioblob;
                 console.log(audioblob);
                  
                 info_div.innerHTML='请点击连接进行识别';
               
                }
          fileAudio.onerror = function(e) {
            console.log('error' + e);
          }
            }
        }
 
function play_file()
{
          var audioblob=new Blob( [ new Uint8Array(file_data_array)] , {type :"audio/wav"});
          var audio_record = document.getElementById('audio_record');
          audio_record.src =  (window.URL||webkitURL).createObjectURL(audioblob); 
          audio_record.controls=true;
          //audio_record.play();  //not auto play
}
function start_file_send()
{
        sampleBuf=new Uint8Array( file_data_array );
 
        var chunk_size=960; // for asr chunk_size [5, 10, 5]
 
 
 
        
 
        while(sampleBuf.length>=chunk_size){
            
            sendBuf=sampleBuf.slice(0,chunk_size);
            totalsend=totalsend+sampleBuf.length;
            sampleBuf=sampleBuf.slice(chunk_size,sampleBuf.length);
            wsconnecter.wsSend(sendBuf);
 
         
        }
 
        stop();
 
 
 
}
 
    
function on_recoder_mode_change()
{
            var item = null;
            var obj = document.getElementsByName("recoder_mode");
            for (var i = 0; i < obj.length; i++) { //遍历Radio 
                if (obj[i].checked) {
                    item = obj[i].value;  
                    break;
                }
            
 
           }
            if(item=="mic")
            {
                document.getElementById("mic_mode_div").style.display = 'block';
                document.getElementById("rec_mode_div").style.display = 'none';
 
 
                btnStart.disabled = true;
                btnStop.disabled = true;
                btnConnect.disabled=false;
                isfilemode=false;
            }
            else
            {
                document.getElementById("mic_mode_div").style.display = 'none';
                document.getElementById("rec_mode_div").style.display = 'block';
 
                btnStart.disabled = true;
                btnStop.disabled = true;
                btnConnect.disabled=true;
                isfilemode=true;
                info_div.innerHTML='请点击选择文件';
                
     
            }
}
function getHotwords(){
  var obj = document.getElementById("varHot");
  
  if(typeof(obj) == 'undefined' || obj==null || obj.value.length<=0){
    return "";
  }
  let val = obj.value.toString();
  console.log("hotwords="+val);
  return val;
 
}
function getAsrMode(){
 
            var item = null;
            var obj = document.getElementsByName("asr_mode");
            for (var i = 0; i < obj.length; i++) { //遍历Radio 
                if (obj[i].checked) {
                    item = obj[i].value;  
                    break;
                }
            
 
           }
            if(isfilemode)
            {
                item= "offline";
            }
           console.log("asr mode"+item);
           
           return item;
}
           
function handleWithTimestamp(tmptext,tmptime)
{
    console.log( "tmptext: " + tmptext);
    console.log( "tmptime: " + tmptime);
    if(tmptime==null || tmptime=="undefined" || tmptext.length<=0)
    {
        return tmptext;
    }
    tmptext=tmptext.replace(/。/g, ","); // in case there are a lot of "。"
    var words=tmptext.split(",");
    var jsontime=JSON.parse(tmptime); //JSON.parse(tmptime.replace(/\]\]\[\[/g, "],[")); // in case there are a lot segments by VAD
    var char_index=0;
    var text_withtime="";
    for(var i=0;i<words.length;i++)
    {   
    if(words[i]=="undefined"  || words[i].length<=0)
    {
        continue;
    }
        console.log("words===",words[i]);
        console.log( "words: " + words[i]+",time="+jsontime[char_index][0]/1000);
        text_withtime=text_withtime+jsontime[char_index][0]/1000+":"+words[i]+"\n";
        char_index=char_index+words[i].length;
    }
    return text_withtime;
    
 
}
// 语音识别结果; 对jsonMsg数据解析,将识别结果附加到编辑框中
function getJsonMessage( jsonMsg ) {
    //console.log(jsonMsg);
    console.log( "message: " + JSON.parse(jsonMsg.data)['text'] );
    var rectxt=""+JSON.parse(jsonMsg.data)['text'];
    var asrmodel=JSON.parse(jsonMsg.data)['mode'];
    var is_final=JSON.parse(jsonMsg.data)['is_final'];
    var timestamp=JSON.parse(jsonMsg.data)['timestamp'];
    if(asrmodel=="2pass-offline" || asrmodel=="offline")
    {
        
        offline_text=offline_text+handleWithTimestamp(rectxt,timestamp); //rectxt; //.replace(/ +/g,"");
        rec_text=offline_text;
    }
    else
    {
        rec_text=rec_text+rectxt; //.replace(/ +/g,"");
    }
    var varArea=document.getElementById('varArea');
    
    varArea.value=rec_text;
    console.log( "offline_text: " + asrmodel+","+offline_text);
    console.log( "rec_text: " + rec_text);
    if (isfilemode==true && is_final==false){
        console.log("call stop ws!");
        play_file();
        wsconnecter.wsStop();
        
        info_div.innerHTML="请点击连接";
 
        btnStart.disabled = true;
        btnStop.disabled = true;
        btnConnect.disabled=false;
    }
    
     
 
}
 
// 连接状态响应
function getConnState( connState ) {
    if ( connState === 0 ) { //on open
 
 
        info_div.innerHTML='连接成功!请点击开始';
        if (isfilemode==true){
            info_div.innerHTML='请耐心等待,大文件等待时间更长';
            start_file_send();
        }
        else
        {
            btnStart.disabled = false;
            btnStop.disabled = true;
            btnConnect.disabled=true;
        }
    } else if ( connState === 1 ) {
        //stop();
    } else if ( connState === 2 ) {
        stop();
        console.log( 'connecttion error' );
         
        alert("连接地址"+document.getElementById('wssip').value+"失败,请检查asr地址和端口。或试试界面上手动授权,再连接。");
        btnStart.disabled = true;
        btnStop.disabled = true;
        btnConnect.disabled=false;
 
 
        info_div.innerHTML='请点击连接';
    }
}
 
function record()
{
 
         rec.open( function(){
         rec.start();
         console.log("开始");
            btnStart.disabled = true;
            btnStop.disabled = false;
            btnConnect.disabled=true;
         });
 
}
 
 
 
// 识别启动、停止、清空操作
function start() {
    
    // 清除显示
    clear();
    //控件状态更新
     console.log("isfilemode"+isfilemode);
    
    //启动连接
    var ret=wsconnecter.wsStart();
    // 1 is ok, 0 is error
    if(ret==1){
        info_div.innerHTML="正在连接asr服务器,请等待...";
        isRec = true;
        btnStart.disabled = true;
        btnStop.disabled = true;
        btnConnect.disabled=true;
 
        return 1;
    }
    else
    {
        info_div.innerHTML="请点击开始";
        btnStart.disabled = true;
        btnStop.disabled = true;
        btnConnect.disabled=false;
 
        return 0;
    }
}
 
 
function stop() {
        var chunk_size = new Array( 5, 10, 5 );
        var request = {
            "chunk_size": chunk_size,
            "wav_name":  "h5",
            "is_speaking":  false,
            "chunk_interval":10,
            "mode":getAsrMode(),
        };
        console.log(request);
        if(sampleBuf.length>0){
        wsconnecter.wsSend(sampleBuf);
        console.log("sampleBuf.length"+sampleBuf.length);
        sampleBuf=new Int16Array();
        }
       wsconnecter.wsSend( JSON.stringify(request) );
 
      
    
     
 
 
    // 控件状态更新
    
    isRec = false;
    info_div.innerHTML="发送完数据,请等候,正在识别...";
 
   if(isfilemode==false){
        btnStop.disabled = true;
        btnStart.disabled = true;
        btnConnect.disabled=true;
        //wait 3s for asr result
      setTimeout(function(){
        console.log("call stop ws!");
        wsconnecter.wsStop();
        btnConnect.disabled=false;
        info_div.innerHTML="请点击连接";}, 3000 );
 
 
       
    rec.stop(function(blob,duration){
  
        console.log(blob);
        var audioBlob = Recorder.pcm2wav(data = {sampleRate:16000, bitRate:16, blob:blob},
        function(theblob,duration){
                console.log(theblob);
        var audio_record = document.getElementById('audio_record');
        audio_record.src =  (window.URL||webkitURL).createObjectURL(theblob); 
        audio_record.controls=true;
        //audio_record.play(); 
             
 
    }   ,function(msg){
         console.log(msg);
    }
        );
 
 
 
    },function(errMsg){
        console.log("errMsg: " + errMsg);
    });
   }
    // 停止连接
 
    
 
}
 
function clear() {
 
    var varArea=document.getElementById('varArea');
 
    varArea.value="";
    rec_text="";
    offline_text="";
 
}
 
 
function recProcess( buffer, powerLevel, bufferDuration, bufferSampleRate,newBufferIdx,asyncEnd ) {
    if ( isRec === true ) {
        var data_48k = buffer[buffer.length-1];  
 
        var  array_48k = new Array(data_48k);
        var data_16k=Recorder.SampleData(array_48k,bufferSampleRate,16000).data;
 
        sampleBuf = Int16Array.from([...sampleBuf, ...data_16k]);
        var chunk_size=960; // for asr chunk_size [5, 10, 5]
        info_div.innerHTML=""+bufferDuration/1000+"s";
        while(sampleBuf.length>=chunk_size){
            sendBuf=sampleBuf.slice(0,chunk_size);
            sampleBuf=sampleBuf.slice(chunk_size,sampleBuf.length);
            wsconnecter.wsSend(sendBuf);
            
            
         
        }
        
 
        
    }
}