Playing Videos On The Web
Videos can be played "inline" or by a "helper",
depending on the HTML element you use.
Inline Videos
When a video is included in a web page it is called
inline video.
Inline video can be added to a web page by using the
<img> element.
If you plan to use inline videos in your web applications, be aware that many
people find inline videos annoying. Also note that some users might have turned
off the inline video option in their browser.
Our best advice is to include inline videos only in web pages where the user
expects to see a video. An example of this is a page which opens after the
user has clicked on a link to see the video.
Using A Helper (Plug-In)
A helper application is a program that can be launched by the browser to
"help" playing a video. Helper applications are also called Plug-Ins.
Helper applications can be launched using the <embed> element, the <applet>
element, or the <object> element.
One great advantage of using a helper application is that you can let some
(or all) of the player settings be controlled by the user.
Most helper applications allow manual (or programmed) control over the volume
settings and play functions like rewind, pause, stop and play.
Using The <img> Element
Internet Explorer supports the dynsrc attribute in the <img> element.
The purpose of this element is to embed multimedia elements in web page:
<img dynsrc="video.avi" />
|
The code fraction above displays an AVI file embedded in a web
page.
Note: The dynsrc attribute is not a standard HTML or XHTML attribute.
It is supported by Internet Explorer only.
Using The <embed> Element
Internet Explorer and Netscape both support an element called <embed>.
The purpose of this element is to embed multimedia elements in web page:
<embed src="video.avi" />
|
The code fraction above displays an AVI file embedded in a web
page.
A list of attributes for the <embed> element can be found in a later chapter
of this tutorial.
Note: The <embed> element is supported by both Internet Explorer and
Netscape, but it is not a standard HTML or XHTML element.
The World Wide Web Consortium (W3C) recommend using the <object> element
instead.
Using The <object> Element
Internet Explorer and Netscape both support an HTML element called <object>.
The purpose of this element is to embed multimedia elements in web page:
<object data="video.avi" type="video/avi" />
|
The code fraction above displays an AVI file embedded in a web
page.
A list of attributes for the <object> element can be found in a later chapter
of this tutorial.
Using A Hyperlink
If a web page includes a hyperlink to a media file, most browsers will use a
"helper application" to play the file:
<a href="video.avi">
Click here to play a video file
</a>
|
The code fraction above displays a link to an AVI file. If the user clicks on
the link, the browser will launch a helper application like Windows Media Player
to play the AVI file.
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