controls_cam.js

linux平台上的开放源代码的网络摄像机程序.实现视频捕捉,传输以及云台控制等.非常具有参考价值.

		st.className="statusArmed";
		st.value="ARMED";
		document.getElementById('idArm').value="DISARM"
	} else if (document.lastStatus==2) {
		st.className="statusAcquired";
		st.value="ACQUIRED";
		document.getElementById('idArm').value="   ARM   "
	}
    if((document.previousStatus!=2) &&(document.lastStatus==2)) getPicture();
    document.previousStatus = document.lastStatus;

}

// ===================================================================================

function setArm() {
 var g;
  var t=new Date();
  var str= parent.document.cameraMCP+"?";
//validate parameters here...  
 document.previousStatus=0;
  
  if (document.lastStatus==1) str+="a=0"; // disarm
  else  str+="a=1&e="+document.getElementById('idExposure').value;// arm
  if (document.getElementById('idDecimation1').checked) str+="&id=1"; 
  if (document.getElementById('idDecimation2').checked) str+="&id=2"; 
  if (document.getElementById('idDecimation4').checked) str+="&id=4"; 
  str+="&iw="+document.getElementById('idImageWidth').value; 
  str+="&ih="+document.getElementById('idImageHeight').value;
  str+="&it="+document.getElementById('idImageTop').value;
  str+="&il="+document.getElementById('idImageLeft').value;
//  str+="&ig="+document.getElementById('idGain').value;
  g=(document.getElementById('idGain').value-1)*63/4;
  if (g<0) g=0;
  if (g>63) g=63;
  str+="&ig="+g;
    
  str+="&iz="+document.getElementById('idDMABurst').value;

  str+=(document.getElementById('idFlipHor').checked) ? "&ix=1" : "&ix=0";
  str+=(document.getElementById('idFlipVert').checked)? "&iy=1" : "&iy=0";
  str+=(document.getElementById('idTestMode').checked)? "&ip=1" : "&ip=0";



  str+="&s=1"; // update sequencer status  
  str+='&l="'+escape("parent.frames[1].updateStatusAndLoop(document.sfResult)")+'"';	// onLoad

  str+="&_time="+t.getTime();
//  alert(str);
  parent.frames[0].location=str;

}
// ===================================================================================

function condGetPicture () { // get picture if status is "Acquired" (2)
	if (document.previousStatus==2) getPicture();
}

function getPicture() {
  var t=new Date();
  var str= parent.document.cameraImage+"?";
  str+="r=1";	// just reload
  str+="&q="+document.getElementById('idQuality').value;
  str+="&c="+document.getElementById('idg').value;
  str+="&_time="+t.getTime();
//  alert(str);
  parent.frames[2].location=str;
  setReReadSensor();
}


// ===================================================================================


function softTrigger() {

  var t=new Date();
  var str= parent.document.cameraMCP+"?";
  str+="s=2"; // software trigger 
  

  
  
  str+='&l="'+escape("parent.frames[1].setUpdateStatus()")+'"';	// onLoad
  str+="&_time="+t.getTime();
//  alert(str);
  parent.frames[0].location=str;

}

// ===================================================================================

function setUpdateStatus() { // setup default auto-reloadable page to refresh status and voltages
  var t=new Date();
  var str= parent.document.cameraMCP+"?";
  str+="r=04000004"; // read first four words (bits+voltages)
  str+="&n="+escape("parent.frames[1].document.camReadData"); // array name
  str+='&l="'+escape("parent.frames[1].updateStatus(document.sfResult)")+'"';	// onLoad
  str+="&s=1"; // update sequencer status
  str+="&x=2"; // refresh rate - set to 1 later?
  str+="&_time="+t.getTime();
  parent.frames[0].location=str;
}

// ===================================================================================
function updateStatusAndLoop(s) {
  updateStatus(s);
  setUpdateStatus();
}

function updateStatus(s) { // will be called periodically after mcprw.sgi reloads
  var Vref=10.2;
  var VMCP,VAnode;
// update camera status
  if (s==5)     setStatus(2); // image ready
  else if (s>0) setStatus(1); // armed
  else          setStatus(0); // reset
// update voltages and some other info?
// will add more intelligence later:
  if (document.MCPpresent > 0) {
    document.getElementById('idVoltMCP').value=document.camReadData[1];
    document.getElementById('idVoltAnode').value=document.camReadData[2];
    document.getElementById('idVolt10V').value=document.camReadData[3];
  
    VMCP=(document.camReadData[1]/document.camReadData[3])*1000/10*Vref;
    VAnode=(document.camReadData[2]/document.camReadData[3])*3000/4.3*Vref;
    VMCP=Math.round(VMCP); 
    VAnode=Math.round(VAnode/10)*10;
    if ((document.camReadData[3]>3800) || (document.camReadData[3]<1000)) {
     document.getElementById('idMCPV').value="---";
     document.getElementById('idAnodeKV').value="---";
    } else {
     document.getElementById('idMCPV').value=VMCP;
     document.getElementById('idAnodeKV').value=VAnode/1000;
    }
  }
 }

// ===================================================================================
/*
<input type="text" name="nMCPV" id="idMCPV" size="4" class="statusVoltage" readOnly="true">
<td><input type="text" name="nAnodeKV" id="idAnodeKV" size="4" class="statusVoltage" readOnly="true">
              kV</td>


function seqSendCompiled() {
  var t=new Date();
    var str= parent.document.cameraMCP+"?";
	var i,d;
	str+="w=0200"; // start of
	for (i=0;i<document.camSeqData.length;i++) {
		d=document.camSeqData[i].toString(16);
		while (d.length<4) d="0"+d;
		str+=d;
	}

	str+='&l="'+escape("parent.frames[1].setUpdateStatus()")+'"';

	str+="&_time="+t.getTime();
//	alert (str);
   parent.frames[0].location=str;
}	 


function seqGetData() {
  var t=new Date();
    var str= parent.document.cameraMCP+"?";
	var i,d;
//	alert("parent.frames[1].seqDeCompile="+parent.frames[1].seqDeCompile);
	str+="r=02000100"; // read all 256 words from sequencer
	str+="&n="+escape("parent.frames[1].document.camSeqData"); // array name
	str+='&l="'+escape("parent.frames[1].seqDeCompile()")+'"';
//	str+='&l="'+escape("parent.frames[1].justTest()")+'"';
//	str+='&l="'+escape("a()")+'"';

//	str+="&c="+escape('function a(){alert("asadfg");parent.frames[1].justTest();}');

	str+="&_time="+t.getTime();
//	alert (str);
   parent.frames[0].location=str;
	 
}
*/
// ===================================================================================

function setInitAll() {	// will add/modify later
  var t=new Date();
  
 parent.document.cameraURL=  "..";
 parent.document.cameraImage=parent.document.cameraURL+"/admin-bin/ccam.cgi";
 parent.document.cameraMCP=  parent.document.cameraURL+"/admin-bin/mcprw.cgi"; 
//alert ("parent.document.cameraMCP="+parent.document.cameraMCP);
    var str= parent.document.cameraMCP+"?";
	var i,d;
//	alert("parent.frames[1].seqDeCompile="+parent.frames[1].seqDeCompile);
//	str+="r=02000100"; // read all 256 words from sequencer
	str+="r=00000400"; // read all 1024 words from camera shadow mwemory
//	str+="&n="+escape("parent.frames[1].document.camSeqData"); // array name
	str+="&n="+escape("parent.frames[1].document.camShadowData"); // array name
	str+='&l="'+escape("parent.frames[1].initAll()")+'"';
	str+='&ir=1'; // report sensor settings

	str+="&_time="+t.getTime();
//	alert (str);
   parent.frames[0].location=str;
}

function initAll() {

  initSensor();
  if (document.MCPpresent>0) {
    readInverterSequence();
    getPWMSettings();
    getTiming();
    showTurnInverter((document.camShadowData[13]>0) && (document.camShadowData[13]<65535));
    seqDeCompile();
  }
  setUpdateStatus(); // will periodically update
//  setUpdateStatus(); // will periodically update
  
}

function setReReadSensor() {	//
  var t=new Date();
    var str= parent.document.cameraMCP+"?";
	var i,d;
	str+='l="'+escape("parent.frames[1].reReadSensor()")+'"';
	str+='&ir=1'; // report sensor settings

	str+="&_time="+t.getTime();
//	alert (str);
   parent.frames[0].location=str;
}


function reReadSensor() {
  initSensor();
  setUpdateStatus(); // will periodically update
}



function initSensor() { // read sensor parameters and fill form elements
  switch (parent.frames[0].document.Sensor_id_par) {
    case 1:{document.getElementById('idDecimation1').checked= true ;break;}
	case 2:{document.getElementById('idDecimation2').checked= true; break;}
	case 4:{document.getElementById('idDecimation4').checked= true; break;}
  }
  document.getElementById('idImageWidth').value=parent.frames[0].document.Sensor_iw_par;
  document.getElementById('idImageHeight').value=parent.frames[0].document.Sensor_ih_par;
  document.getElementById('idImageTop').value=parent.frames[0].document.Sensor_it_par;
  document.getElementById('idImageLeft').value=parent.frames[0].document.Sensor_il_par;
  document.getElementById('idFlipHor').checked=(parent.frames[0].document.Sensor_ix_par>0);
  document.getElementById('idFlipVert').checked=(parent.frames[0].document.Sensor_iy_par>0);
//  document.getElementById('idGain').value=parent.frames[0].document.Sensor_ig_par;
  document.getElementById('idGain').value=parent.frames[0].document.Sensor_ig_par*4/63+1;

  document.getElementById('idTestMode').checked= (parent.frames[0].document.Sensor_ip_par>0);
  document.getElementById('idDMABurst').value=parent.frames[0].document.Sensor_iz_par;
  
}
function restart() {
  var t=new Date();
//   parent.frames[0].location="blank.html";
//   alert ("parent.frames[0].location="+parent.frames[0].location);
//   alert ("parent.frames[0].location="+parent.frames[0].location);
  parent.location= "camera.html"+"?time="+t.getTime();;
}