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Concepts & Techniques for Accessible, Closed Captioned Web-Based Video 10th Annual Accessing Higher Ground: Accessible Media, Web and Technology Conference.

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Presentation on theme: "Concepts & Techniques for Accessible, Closed Captioned Web-Based Video 10th Annual Accessing Higher Ground: Accessible Media, Web and Technology Conference."— Presentation transcript:

1 Concepts & Techniques for Accessible, Closed Captioned Web-Based Video 10th Annual Accessing Higher Ground: Accessible Media, Web and Technology Conference Boulder, Colorado November 7, David Klein K. “Fritz” Thompson

2 Embedding Videos into HTML  Media Player and RealPlayer better external, not embedded  QuickTime & Flash generally better embedded  Internet Explorer generally better with Flash  Controversy in use of and tags

3 Conventional Embedding    Object parameters  File location    Embed parameters  File location    

4 Embedding QuickTime

5 Embedding Flash Video Player

6 Embedding Issues    Not a standard  Doesn’t validate for XHTML  tag not supported the same on all browsers  Player versioning  Downloading / upgrading versions a major pain  Frequently a showstopper for many users  Earlier required versions may show garbage (or blank space) instead of error message

7 Flash Embedding Alternatives  Object Only method  Validates for XHTML  Tricks browsers into correctly displaying content  Uses graceful failure rule  When one OBJECT tag doesn’t work, it’s ignored  Moves to the next OBJECT tag

8 OBJECT Only Method

9 Flash Embedding Alternatives  Flash Object method (uses JavaScript) to determine versions and handle errors gracefully  Avoid unacceptable use of or tags  Uses alternative text as a default when all else fails   Works in Internet Explorer to avoid double click interaction

10 Contact  Law, Health Policy & Disability Center   LHPDC Bulletin Board (download Flash playback engine)  David Klein Boyd Law Bldg. College of Law University of Iowa Iowa City, IA K. “Fritz” Thompson Boyd Law Bldg. College of Law University of Iowa Iowa City, IA


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