osmwp.github.com/development_node_MediaSensor.html at master · osmwp/osmwp.github.com · GitHub

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<!DOCTYPE html
  PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>Mobile Widgets</title>
	<link rel="stylesheet" href="style/style.css" />
	<link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon" />
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</head>

<body>

<script type="text/javascript">
<!--
idCurrentPage = "development_node_MediaSensor";
beginPage();
//-->
</script>


<h1 class="title">MediaSensor node</h1>

<script type="text/javascript">
<!--
addIndex();
//-->
</script>


<script type="text/javascript">addTitle("Interface", 1);</script>

<textarea wrap="off" readonly="readonly" rows="7" cols="80">
MediaSensor {
  MFString url ""
  SFTime mediaCurrentTime 0
  SFTime mediaDuration 0
  SFBool isActive FALSE
  MFString status []
}
</textarea>
<br/>

<script type="text/javascript">addTitle("Description", 1);</script>

<p>
Report the state of a media currently played (or not).<br/>
It can also be used to monitor file download in conjunction with the Javascript
<a href="development_javascript_File.html">File class</a>.
</p>
<br/>

<script type="text/javascript">addTitle("Fields", 1);</script>

<p>
<b>MFString url ""</b> :<br/>
As for MediaControl, the specified <b>url</b> must be also used in a
<a href="development_node_MovieTexture.html">MovieTexture</a> or an
<a href="development_node_AudioClip.html">AudioClip</a>.<br/>
The url can also be the one used for loading a ressource using the Javascript
<a href="development_javascript_File.html">File class</a>.<br/>
This can help monitoring the progress of a big file download.See the
<a href="development_javascript_File.html">File class</a> for more details.
</p>
<p>
<b>SFTime mediaCurrentTime 0</b> :<br/>
The <b>mediaCurrentTime</b> field returns the timestamp of the last media unit played.
</p>
<p>
<b>SFTime mediaDuration 0</b> :<br/>
The <b>mediaDuration</b> field contains the duration of the media when available.
</p>
<p>
<b>SFBool isActive FALSE</b> :<br/>
The <b>isActive</b> field reports the current playing status.
</p>
<p>
<b>MFString status []</b> :<br/>
The <b>status</b> field is set at index 0 to the last state occured (stopped, playing, buffering, error ...).<br/>
In case of error, the index 1 is set to the error message, like "Invalid URL", "Connection error" or "unsupported format"
</p>
<br/>

<script type="text/javascript">addTitle("Example", 1);</script>

<textarea wrap="off" readonly="readonly" rows="15" cols="80">
#VRML V2.0 utf8

Group {
  children [
    # Background
    Shape {
      appearance Appearance {
        material Material2D {
          emissiveColor 1.0 1.0 1.0
        }
      }
      geometry Rectangle { size 300 300}
    }
    # Video shape
    Shape {
      appearance Appearance {
        texture MovieTexture {
          url "http://localhost/arte.mpg"
        }
      }
      geometry Rectangle { size 160 120}
    }
    # Video sensor
    DEF MY_MEDIA_SENSOR MediaSensor {
      url "http://localhost/arte.mpg"
    }
    # Playing status
    Transform2D {
      translation 0 -70
      children [
        Shape {
          appearance Appearance {
            material Material2D {
              emissiveColor 0.0 0.0 0.0
            }
          }
          geometry DEF PROGRESS_TXT Text {
            string [ "progression" ]
            fontStyle FontStyle {
              size size 16
              style "italic"
              justify ["MIDDLE" "MIDDLE"]
            }
          }
        }
      ]
    }

    DEF MY_SCRIPT Script {
      eventIn SFTime updateMediaProgression
      eventIn MFString updateMediaStatus

      field SFNode mediaSensor USE MY_MEDIA_SENSOR
      field SFNode progressText USE PROGRESS_TXT
      url "
      function updateMediaProgression () {
        if (mediaSensor.mediaCurrentTime &lt;= 0) {
          progressText.string [0] = ' - ';
        } else {
          var percent = mediaSensor.mediaCurrentTime / mediaSensor.mediaDuration;
          if (percent &lt; 1.0) {
            var roundPrecent = Math.ceil(percent * 100);
            progressText.string [0] = roundPrecent + '%';
          }
        }

      }
      function updateMediaStatus () {
        progressText.string [0] = updateMediaStatus [0];
      }
      "
    }

    ROUTE MY_MEDIA_SENSOR.mediaCurrentTime TO MY_SCRIPT.updateMediaProgression
    ROUTE MY_MEDIA_SENSOR.status TO MY_SCRIPT.updateMediaStatus
  ]
}
</textarea>
<br/>


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<!--
	addBackPageNavigator('widgets_development_nodes_ref', '');
//-->
</script>


<script type="text/javascript">
<!--
endPage();
//-->
</script>

</body>

</html>