FFMPEG TOOL

Change class name on click in jQuery

by Elvis de Freitas

HTML

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/spectrum/1.8.0/spectrum.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/spectrum/1.8.0/spectrum.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
Credits to: <a href="http://ffmpeg.shanewhite.co/">ffmpeg.shanewhite.co</a>
<h1>Generate FFMPEG Text Fade In/Out Effects</h1>
<div class="container">
  <div class="row">
    <div class="col-lg-3">
      <div class="panel panel-primary">
        <div class="panel-heading">
          <h3 class="panel-title">File Info</h3>
        </div>
        <div class="panel-body">
          <div class="form-group ">
            <label class="control-label " for="input-file-name">
              Input File Name
            </label>
            <div class="input-group">
              <div class="input-group-addon">
                <i class="fa fa-file-video-o"></i>
              </div>
              <input class="form-control" id="input-file-name" value="input.mp4" name="input-file-name" placeholder="Enter Input File Name" type="text" />
            </div>
          </div>
          <div class="form-group ">
            <label class="control-label " for="output-file-name">
              Output File name
            </label>
            <div class="input-group">
              <div class="input-group-addon">
                <i class="fa fa-file-video-o"></i>
              </div>
              <input class="form-control" id="output-file-name" value="output.mp4" name="output-file-name" placeholder="Enter Output File Name" type="text" />
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="col-lg-9">
      <div class="panel panel-info">
       ...

CSS

#output {
  font-family: monospace;
}
body {
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

var displayTextArray = [];
var textColor = "ffffff";


function renderResults(){

  var inputFile = $("#input-file-name").val();
  var outputFile = $("#output-file-name").val();
  var commandBegin = 'ffmpeg -i ' + inputFile + ' -filter_complex "[0:v]';
  var commandEnd = '" ' + $("#ipt-add-args").val() + " " + outputFile;
	var outputDisplayText = "";
  $.each(displayTextArray, function(index, value){
    if (index != 0){
      outputDisplayText = outputDisplayText + "\\\n," + value;
    } else {
      outputDisplayText = value;
    }
  });
  $("#output").text(commandBegin + outputDisplayText + commandEnd);
}

$("#btn-undo").click(function(){
  displayTextArray.pop();
  renderResults()
});

$("#btn-reset-commands").click(function(){
  displayTextArray = [];
  renderResults();
});

$("#color-picker").spectrum({
  color: "ffffff",
  change: function(color) {
    textColor = color.toHexString().substr(1);
  }
});
$("#reset-fields").click(function() {
  $("#text").val("");
  $("#font-size").val("64");
  $("#text-x-location").val("(w-text_w)/2");
  $("#text-y-location").val("(h-text_h)/2");

  $("#fade-in-start-time").val("");
  $("#fade-in-duration").val("");
  $("#text-display-time").val("");
  $("#fade-out-duration").val("");
});

$("#add-text").click(function() {

  var inputFile = $("#input-file-name").val();
  var outputFile = $("#output-file-name").val();

  if (inputFile == "" || outputFile == "")
  {
    alert("Please enter input and outputfiles");
  } else
  {

    var text = $("#text").val();
    var fontSize = $("#font-size").val();
    var fontFileLocation = $("#font-file").val();
    var textX = $("#text-x-location").val();
    var textY = $("#text-y-location").val();

    var t1 = parseFloat($("#fade-in-start-time").val());
    var t2 = parseFloat($("#fade-in-duration").val());
    var t3 = parseFloat($("#text-display-time").val());
    var t4 = parseFloat($("#fade-out-duration").val());

    var fadeOutTime = t1+t2+t3;
    console.log(fadeOutTime);
   ...