HTML5 Video
Many sites use video. HTML5 provides a standard for displaying videos.
Check if your browser supports HTML5 video:
Videos On the Website
Until now, there is still no standard for displaying videos on web pages.
Today, most videos are displayed through plug-ins (such as Flash). However, not all browsers have the same plug-ins.
HTML5 specifies a standard method for including video through the video element.
Browser Support
Internet Explorer 9+, Firefox, Opera, Chrome, and Safari support the <video> element.
Note: Internet Explorer 8 or earlier versions of IE do not support the <video> element.
HTML5 (video)-how it works
To display a video in HTML5, all you need is:
Example
<video width="320" height="240" controls> <source src="movie.mp4" type="video/mp4"> <source src="movie.ogg" type="video/ogg"> Your browser does not support the Video tag. </video>
The <video> element provides play, pause, and volume controls to control the video.
At the same time, the <video> element also provides width and height attributes to control the size of the video. If the height and width are set, the required video space will be reserved when the page loads. If theattributes are not set and the browser does not know the size of the video, the browser can no longer reserve a specific space when loading, and the page will change according to the size of the original video.
The content inserted between the <video> and </video> tags is provided for display by browsers that do not support the video element.
The <video> element supports multiple <source> elements. The <source> element can link different video files. The browser will use the first recognizable format:
Video format and browser support
Currently, the <video> element supports three video formats: MP4, WebM, and Ogg:
| Browser | MP4 | WebM | Ogg |
|---|---|---|---|
| Internet Explorer | YES | NO | NO |
| Chrome | YES | YES | YES |
| Firefox | YES | YES | YES |
| Safari | YES | NO | NO |
| Opera | YES (from Opera 25) | YES | YES |
MP4 = MPEG 4 file with H.264 video encoding and AAC audio encoding
WebM = WebM file with VP8 video encoding and Vorbis audio encoding
Ogg = Ogg file with Theora video encoding and Vorbis audio encoding
Video format
| Format | MIME-type |
|---|---|
| MP4 | video/mp4 |
| WebM | video/webm |
| Ogg | video/ogg |
HTML5 <video>-Use DOM for control
HTML5 <video> and <audio> elements also have methods, attributes and events.
The methods, attributes and events of the <video> and <audio> elements can be controlled using JavaScript.
The methods are used to play, pause, and load. The attributes (such as duration, volume, etc.) can be read or set. The DOM events can notify you, for example, the <video> element starts playing, has been paused, has stopped, and so on.
The simple method in the example shows us how to use the <video> element, read and set attributes, and how to call methods.
Example
Create simple play/pause and resizing controls for the video:
The above example calls two methods: play() and pause(). It uses two attributes at the same time: paused and width.
For more references, please check the HTML5 Audio/Video DOM Reference Manual .(under construction)
HTML5 Video Tags
| Tag | Description |
|---|---|
| <video> | Defines a video |
| <source> | Defines a variety of media resources, such as <video> and <audio> |
| <track> | Defined in the media player text track |