Multimedia

What is multimedia?

• Multimedia is everything you can hear or see: texts, books, pictures, music, sounds, CDs, videos, DVDs, Records, Films, and more.

Sound Format• The MIDI Format: The MIDI (Musical Instrument Digital Interface) is

a format for sending music information.• The RealAudio Format: audio and video• The AU Format: The AU format is supported by many different

software systems over a large range of platforms.  • The AIFF Format: By Apple• Wave: The WAVE (waveform) format is developed by IBM and

Microsoft. It is supported by all computers running Windows, and by all the most popular web browsers. Sounds stored in the WAVE format have the extension .wav.

• The MP3 Format (MPEG):MP3 files are actually MPEG files. But the MPEG format was originally developed for video by the Moving Pictures Experts Group.

Video Format• The AVI Format: The AVI (Audio Video Interleave) format was

developed by Microsoft. • The Windows Media Format:Videos stored in the Windows Media

format have the extension .wmv. • The MPEG Format: Videos stored in the MPEG format have the

extension .mpg or .mpeg. • The QuickTime Format: Videos stored in the QuickTime format

have the extension .mov. • The RealVideo Format: The RealVideo format was developed

for the Internet by Real Media. The format allows streaming of video (on-line video, Internet TV) with low bandwidths. Videos stored in the RealVideo format have the extension .rm or .ram.

• The Shockwave (Flash) Format: Videos stored in the Shockwave format have the extension .swf.

Windows Format

• The ASX Format: • ASX (Advanced Stream Redirector) files are not media

files, but metafiles.• Metafiles provides information about files. ASX files are

plain text files used to describe multimedia content:• <ASX VERSION="3.0">

  <Title>Holiday 2001</Title>  <Entry><ref href="holiday-1.avi"/></Entry>  <Entry><ref href="holiday-2.avi"/></Entry>  <Entry><ref href="holiday-2.avi"/></Entry></ASX>

• WMA: Windows media audio• WMV: Windows media video

• Inline Sound/video: When sound/video is included in a web page, or as part of a web page, it is called inline sound/video.

• Using A Helper (Plug-In): Helper applications can be launched using the <embed> or the <object> tag.

• Using The <embed> Tag

• The purpose of the <embed> tag is to embed multimedia elements in web page.

• <embed src="beatles.mid" />

• Using The <object> Tag

• <objectclassid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95"><param name="FileName" value="liar.wav" /></object>

• Using A Hyperlink: Download Audio

• If a web page includes a hyperlink to a media file, most browsers will use a "helper application" to play the file.

• <a href="beatles.mid">Play the Beatles</a>

• Displaying a Audio• <object

classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95"><param name="FileName" value="liar.wav" /></object>

• Displaying a Video • <object

classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95"><param name="FileName" value="3d.wmv" /></object>

The Realvideo format

• <object width="320" height="240"classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA"><param name="controls" value="ImageWindow" /><param name="autostart" value="true" /><param name="src" value="male.ram" /></object>

Adding QuickTime format• <object width="160" height="144"

classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"codebase="http://www.apple.com/qtactivex/qtplugin.cab"><param name="src" value="sample.mov"><param name="autoplay" value="true"><param name="controller" value="false">

<embed src="sample.mov" width="160" height="144"autoplay="true" controller="false"pluginspage="http://www.apple.com/quicktime/download/"></embed>

</object>

Add Flash File

• <object width="550" height="400">

• <param name="movie" value="intro.swf">

• <embed src="intro.swf" width="550" height="400">

• </embed>

• </object>• <object> is supported by Internet explorer• <embed> is supported by IE, netscape etc…