Start learning with our library of video tutorials taught by experts. Get started

HTML5: Video and Audio in Depth

Automating video and audio encoding


From:

HTML5: Video and Audio in Depth

with Steve Heffernan

Video: Automating video and audio encoding

Here is one more use case I want to touch on and that's automating the video encoding process. We just went over how to encode videos one at time using free tools, but for a lot of web sites you're encoding videos that are uploaded by your users. It would be a pain to encode all of those one at a time. So you want to automate that process. I am not going to go too deep into creating the actual workflow because that's a very big task in itself and requires a lot of programming, but I will give you some of the resources available specifically for automating HTML5 video encoding. First is FFMPEG, which you can find here at ffmpeg.org.
Expand all | Collapse all
  1. 1m 24s
    1. Welcome
      42s
    2. Using the exercise files
      42s
  2. 15m 18s
    1. Understanding HTML5 video and audio
      4m 46s
    2. The state of HTML5 video and audio
      4m 29s
    3. Understanding the format war
      3m 53s
    4. Configuring your server to deliver HTML5 media formats
      2m 10s
  3. 32m 36s
    1. Using the video and audio tags
      5m 34s
    2. Using multiple sources for browser compatibility
      5m 53s
    3. Preloading
      4m 16s
    4. Autoplaying
      2m 2s
    5. Looping
      5m 11s
    6. Setting a poster frame
      3m 43s
    7. Setting the video width and height
      3m 40s
    8. Displaying subtitles and captions
      2m 17s
  4. 12m 40s
    1. Falling back to Flash
      4m 4s
    2. Falling back to download links
      6m 21s
    3. Using an embed code builder
      2m 15s
  5. 22m 17s
    1. Understanding HTML5 video formats
      5m 10s
    2. Understanding HTML5 audio formats
      2m 57s
    3. Encoding MP4/H.264 video with HandBrake
      3m 13s
    4. Encoding Ogg, Theora, and WebM with Firefogg
      3m 18s
    5. Encoding audio formats with VLC
      5m 54s
    6. Automating video and audio encoding
      1m 45s
  6. 34m 59s
    1. Setting up the JavaScript
      4m 39s
    2. Creating Play and Pause buttons
      7m 52s
    3. Creating a Play Progress bar
      5m 49s
    4. Creating a Load Progress bar
      9m 29s
    5. Creating a Current Time and Duration display
      7m 10s
  7. 4m 37s
    1. Overview of known issues
      35s
    2. Autobuffer or preload?
      56s
    3. Load progress in Firefox 3.6
      41s
    4. Android 2.0 issues
      1m 5s
    5. iOS 3 issues
      1m 20s
  8. 2m 8s
    1. Flight of the Navigator
      50s
    2. ZEN Audio Player by simurai
      34s
    3. The Wilderness Downtown by Google and Arcade Fire
      44s
  9. 1m 40s
    1. Further exploration
      1m 40s

Watch this entire course now—plus get access to every course in the library. Each course includes high-quality videos taught by expert instructors.

Become a member
Please wait...
HTML5: Video and Audio in Depth
2h 7m Intermediate Jun 02, 2011

Viewers: in countries Watching now:

In this course, author Steve Heffernan contextualizes the state of HTML5 audio and video and shows how to embed media into a web page using HTML5. The course sheds light on configuring the new HTML5 audio and video tags, ensuring backwards compatibility by setting alternative playback methods, encoding the needed file formats, and building custom controls with JavaScript. Also included are tutorials on troubleshooting known issues and reviewing real-world examples of HTML5 audio and video.

Topics include:
  • Understanding the differences in media formats
  • Preloading, autoplaying, and looping in HTML5
  • Setting a video's width and height attributes
  • Displaying subtitles and captions
  • Generating embed code with an embed code builder
  • Encoding files using HandBrake, Firefogg, and VLC
  • Creating a load progress bar
  • Recognizing Android and iOS issues
Subjects:
Video Web Web Video Web Development
Software:
HTML
Author:
Steve Heffernan

Automating video and audio encoding

Here is one more use case I want to touch on and that's automating the video encoding process. We just went over how to encode videos one at time using free tools, but for a lot of web sites you're encoding videos that are uploaded by your users. It would be a pain to encode all of those one at a time. So you want to automate that process. I am not going to go too deep into creating the actual workflow because that's a very big task in itself and requires a lot of programming, but I will give you some of the resources available specifically for automating HTML5 video encoding. First is FFMPEG, which you can find here at ffmpeg.org.

It's an amazing piece of open source software that along with some additional libraries can support all the HTML5 video and audio formats that we need. In fact, a number of other encoding tools are built on half of FFMPEG. There isn't an easy graphic interface for it though. So to use it you have to open a Terminal and work on the command line. If you are not used to doing that, it's probably best left for a developer. Next is Zencoder, which can be found at zencoder.com. Zencoder is a cloud- based video encoding service. Cloud-based means that it's built on one or more of the many computing clouds, like Amazon EC2 or Rackspace Cloud servers which means it can scale what to demand for encoding.

So if you need a few videos or a few hundred videos, it can for the most part do all of them at the same time. Zencoder supports all the HTML5 video and audio formats we need so we can use it to set up an HTML5 media workflow. It's much easier to use an FFMPEG, but it's not free. It will cost you couple of cents per minute a video. So depending on your project and budget, either FFMPEG or Zencoder could be a great choice for automating HTML5 video and audio encoding.

There are currently no FAQs about HTML5: Video and Audio in Depth.

Share a link to this course
Please wait... Please wait...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.
Upgrade now


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Upgrade now

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed HTML5: Video and Audio in Depth.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Welcome to the redesigned course page.

We’ve moved some things around, and now you can



Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked

Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.