HTML Multimedia Chapter 3

Multimedia Definition

• Multimedia comes in various formats, including images, music, sound, videos, records, films, animations, and more.
• Web pages often contain multimedia elements of different types and formats.

HTML Video

• The controls attribute adds video controls, like play, pause, and volume.
• It is a good idea to always include width and height attributes to prevent page flickering while the video loads.
• The video element allows you to specify alternative video files, which the browser may choose from.
• The text between the video tags will only be displayed in browsers that do not support the video element.
• The autoplay attribute starts a video automatically.
• The loop attribute specifies that the video will start over again after it finishes.

Common Video Formats

• M4V (.m4v) is developed by Apple Inc. and is specifically designed for Apple products.
• MP4 (.mp4) is developed by Moving Picture Experts Group (MPEG) and can be played by most media players and devices.

HTML Audio

• The controls attribute adds audio controls, like play, pause, and volume.
• The audio element allows you to specify alternative audio files, which the browser may choose from.
• The text between the audio tags will only be displayed in browsers that do not support the audio element.

HTML Plug-ins

• Plug-ins can be added to web pages with the object tag or the embed tag.
• Examples of plug-ins include Adobe Flash Player, Adobe Reader, Windows Media Player, Apple Quicktime, and Java Applets.

HTML Object Tag

• The object element is supported by all browsers.
• The object element defines an embedded object within an HTML document.
• It is used to embed plug-ins in web pages.

HTML Embed Tag

• The embed element is supported in all major browsers.
• The embed element also defines an embedded object within an HTML document.
• Web browsers have supported the embed element for a long time, although it has not been part of the HTML specification before HTML5.

Multimedia Accessibility

• Multimedia accessibility ensures that website content is accessible to all, including people with disabilities who cannot hear or see audio.
• Transcript is required for most W3C media.
• Captions are nice to have for most W3C media and are required for some.
• Captions are essential when people need to see what's happening in the video and get the audio information in text at the same time.

This quiz covers the implementation of audio-visual elements in HTML, including video, audio, plug-ins, and object tags. It also touches on multimedia accessibility in web development.