COAP:COAP-2100/week6

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Week 5

Topics Covered

  • Video/Audio formats and codecs
  • Strategies for dealing with Video formats (Editing and conversion)
  • Video and audio with HTML5
  • Using JavaScript (HTML5 Players)

Important teaching materials

Classroom activities - Monday

<!doctype html>
<html>
  <head>
    <meta charset="UTF-8"/> 
    <title>HTML 5 video element</title>
  </head>
    <body>
Video (replace the URLS)
      <video id="movie1" controls preload="metadata">
	<source src="videos/state-of-wikipedia-480x272.mp4">
	<source src="videos/state-of-wikipedia-480x272.ogv">
	<source src="videos/state-of-wikipedia-480x272.webm">
        Your browser doesn't support HTML5. Maybe you should upgrade.
      </video>
Audio (replace/reduce the URLs)
      <audio id="movie1" autoplay loop>
	<source src="audio/guitar.mp3">
	<source src="audio/guitar.ogg">
	<source src="audio/guitar.m4a">
	<source src="audio/guitar.wav">
        Your browser doesn't support HTML5. Maybe you should upgrade.
      </audio>
      <hr/>
      <a href="http://validator.w3.org/check?uri=referer">W3C validator</a> 
    </body>
</html>

Wednesday - classroom activities

Topic:

  • Using HTML5 Players
  • Dealing with a JavaScript library
Discussion of homework, term project and final
Principles
  • Recall of HTML5 video principles
  • Track languages: SRT, WebVTT, Timed Text, etc.
  • WebVTT (A video track language)
  • Using JavaScript libraries
LeanBackPlayer exercise
  • LeanBack Player
  • Download from here and unzip the library within a folder that you could name "project5".
  • Create the player code with the HTML5 Generator.
    • Tick most everything except autoplay and loop
    • You already can substitute the video file names (but you also can do that later). We suggest doing it now, e.g. use myvideo.mp4, myvideo.webm, etc.
    • Keep the browser tab open (you will need to copy/paste the code)
  • Create a new HTML5 file using the template below:
<!doctype html>
<html>
  <head>
    <meta charset="UTF-8"/> 
    <title>HTML 5 video</title>

    <!-- Insert the header code about here and kill this line -->

  </head>
    <body>

      <h1>Title that you should set </h1>
      <p>Intro that you should change ....</p>

   <!-- Insert the body code about here and kill this line -->


      <hr/>
      <a href="http://validator.w3.org/">W3C validator</a> 
    </body>
</html>
  • Test: If the video does not show then you likely:
    • put the library in some other place (not the same directory). Fix the URLs
    • deleted some important line of code
    • have syntax errors: validate your code
    • Tip: Open the error console in your browser: In Firefox: Tools->Web Developer->Error console
Using track with LeanbackPlayer

WebVTT template 

WEBVTT

Introduction
00:00:01.000 --> 00:01:10.000
Wikipedia is a great adventure. It may have
its shortcomings, but it is the largest collective
knowledge construction endevour

Disclaimer
00:01:10.000 --> 00:02:10.000
This is just a track demo using VTT
Optional

Homework 5

  • Create an HTML5 file that includes at least a video and an audio
  • The page should be "meaningful" and usable with respect to a target population of your choice. (I.e. don't create a page for the instructor, identify an objective and implement ...)
  • You may copy/paste text and use media files from some other sources under the condition that you cite these sources.
  • You may keep the HTML very simple (ie. only use h1 and p tags)
  • In order to get a high mark with respect to Artwork and appeal, you should consider using some CSS, e.g. add a float:right property to the video element. In case you don't know CSS at all, you may compensate with excellent contents.
  • Submit the files to the worldclass room. Make sure to include the media files unless you link to accessible URLs.
  • Due: Monday, week 7, before class

Homework 6

Notice: Technology of HTML5 players will not be tested in the final exam. If you already submitted four good homeworks, you can skip this one.....

  • Create an HTML5 file that includes at a video shown with an HTML5 Player. You can use LeanbackPlayer or any other.
  • The page should be "meaningful" and usable with respect to a target population of your choice. (I.e. don't create a page for the instructor, identify an objective and implement ...)
  • You may copy/paste text and use media files from some other sources under the condition that you cite these sources.
  • You may keep the HTML very simple (ie. only use h1 and p tags)
  • In order to get a high mark with respect to Artwork and appeal, you should consider customizing the JS library as much as you can. Read the documentation that is provided on the website of the player.
  • In order to get a high mark with respect to complexity, you must include tracking data.
  • Submit the files to the worldclass room. Make sure to include the media files unless you link to accessible URLs. (We suggest using a zip file).
  • Due: Wednesday, week 7, before class

Term project

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