XPPL/app/templates/addaudio.html

{% extends 'base.html' %}

{% block main %}
{% from "_formhelpers.html" import render_field %}

  <h1 class="page-header">Add Audio</h1>
  {% with messages = get_flashed_messages() %}
    {% if messages %}
      <div class="alert alert-danger">
        <ul>
        {% for message in messages %}
          <li>{{ message }}</li>
        {% endfor %}
        </ul>
      </div>
    {% endif %}
  {% endwith %}

  <form method="POST" action="{{ url_for('addaudio') }}" enctype=multipart/form-data>
    {{ form.csrf_token }}
    <input type="hidden" name="longitude" value="{{ longitude }}" />
    <input type="hidden" name="latitude" value="{{ latitude }}" />
    

    <div class="recorder">
      Recorder
      <input type="button" class="start"  value="Record" />
      <input type="button" class="stop" value="Stop" />
      <pre class="status"></pre>
    </div>
    
    <div id="audio">
      <div class="record_controls">
        <a class="record_btn audio_btn" id="record_btn" onclick="record_audio()" href="#"><span class="icon"></span>record</a>
        <a class="stop_btn audio_btn" id="stop_btn" onclick="stop_audio()" href="#"><span class="icon"></span>stop</a>
        <a class="play_btn audio_btn" id="play_btn" onclick="play_audio()" href="#"><span class="progress_bar"></span><span class="icon_p"></span>play</a>
        <a class="redo_btn audio_btn" id="redo_btn" onclick="redo_audio()" href="#"></span>redo</a>

      </div>
      <div id="audio-player-container"></div>
    </div>

    <input hidden="true" type="file" name="file" id="uploadedFile" accept="audio/*"><br>

    <div style="width: 100%;">
      message: <br>{{ form.message(class="form-control") }}
    </div>

    <button type="submit">Submit</button>

   

</form>

<clear>
{% endblock main %}
{% block js%}

<script>

var mediaRecorder;
var seconds_rec = 0;
var seconds_int;
var audio;
var state = "empty";
var audio_context;


function record_audio(){
  if(state == "empty"){
  navigator.mediaDevices.getUserMedia({ audio: true })
  .then(stream => {
    mediaRecorder = new MediaRecorder(stream);
    mediaRecorder.start();

    state = "recording";
    document.getElementById('stop_btn').style.display = 'block'

    seconds_int = setInterval(
    function () {
      document.getElementById("record_btn").innerHTML = seconds_rec + " s";
      seconds_rec += 1;
  }, 1000);

    const audioChunks = [];
    mediaRecorder.addEventListener("dataavailable", event => {
      audioChunks.push(event.data);
    });

    mediaRecorder.addEventListener("stop", () => {
      console.log("stopping");
      const audioBlob = new Blob(audioChunks, {type: 'audio/mpeg'});
      const audioUrl = URL.createObjectURL(audioBlob);
      var sound      = document.createElement('audio');
      sound.id       = 'audio-player';
      sound.controls = 'controls';
      sound.src      = audioUrl;
      console.log(audioUrl)
      sound.type     = 'audio/mpeg';
      document.getElementById("audio-player-container").innerHTML = sound.outerHTML;

      
      let file = new File([audioBlob], "audio.mp3",{type:"audio/mpeg"});
      let container = new DataTransfer();
      container.items.add(file);
      document.getElementById("uploadedFile").files = container.files;
      
  
      audio = new Audio(audioUrl);
      audio.addEventListener("ended", function(){
          audio.currentTime = 0;
          document.getElementById("play_btn").innerHTML = '<span class="icon_p"></span>play'
      });
      audio.addEventListener("timeupdate", function() {
        var currentTime = audio.currentTime;
        var duration = audio.duration;
        $('.progress_bar').stop(true,true).animate({'width':(currentTime +.25)/duration*100+'%'},0,'linear');
    });

      document.getElementById('play_btn').style.display = 'block'
      document.getElementById('redo_btn').style.display = 'block'
      document.getElementById('stop_btn').style.display = 'none'
      document.getElementById("record_btn").innerHTML = "recording…";
      document.getElementById('record_btn').style.display = 'none'

    });

    setTimeout(() => {
      stop_audio()
    }, 1000 * 60);
  });
}
}

function stop_audio(){
    clearInterval(seconds_int); 
    mediaRecorder.stop();
}

function redo_audio(){
    state = "empty";
    seconds_rec = 0;
    document.getElementById('play_btn').style.display = 'none'
      document.getElementById('redo_btn').style.display = 'none'
      document.getElementById('stop_btn').style.display = 'block'
      document.getElementById('record_btn').style.display = 'block'
      record_audio()
}

function  play_audio(){
  if(audio.paused){
    audio.play();
    document.getElementById("play_btn").innerHTML = '</span><span class="icon_b"></span><span class="text">pause</span><span class="progress_bar">'
  }
  else{
    audio.pause();
    document.getElementById("play_btn").innerHTML = '</span><span class="icon_p"></span><span class="text">play</span><span class="progress_bar">'

  }
}




</script>

{% endblock js%}