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HTML5 video support Detection

Source: Internet
Author: User
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Print? <STRONG> more and more websites now provide video playback (non-plug-ins ). HTML5 provides the standard for displaying videos. So how can we check whether your browser supports video playback? Let's write a column. </STRONG>

More and more websites now provide video playback (non-plug-ins ). HTML5 provides the standard for displaying videos. So how can we check whether your browser supports video playback? Let's write a column.
[Html]
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Strict // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Body>
<H1> HTML 5 video <P> check whether your browser supports HTML5 videos: </p>
<Div id = "checkVideoResult" style = "margin: 10px 0 0 0; border: 0; padding: 0;">
<Button style = "font-family: Arial, Helvetica, sans-serif;" onclick = "checkVideo ()"> Check </button>
</Div>
</Div>
</Body>
</Html>

<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Strict // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Body>
<H1> HTML 5 video <P> check whether your browser supports HTML5 videos: </p>
<Div id = "checkVideoResult" style = "margin: 10px 0 0 0; border: 0; padding: 0;">
<Button style = "font-family: Arial, Helvetica, sans-serif;" onclick = "checkVideo ()"> Check </button>
</Div>
</Div>
</Body>
</Html> below is the js Code:


[Javascript]
Function checkVideo ()
{
If (!! Document. createElement ('video'). canPlayType)
{
// Create a video Element
Var vidTest = document. createElement ("video ");
// Checks whether videos in ogg format can be played.
OggTest = vidTest. canPlayType ('video/ogg; codecs = "theora, vorbis "');
If (! OggTest)
{
// Checks whether MP4 videos can be played.
Hsf-test = vidTest. canPlayType ('video/mp4; codecs = "avc1.42E01E, mp4a. 40.2 "');
If (! Hsf-test)
{
Document. getElementById ("checkVideoResult"). innerHTML = "Sorry. No video support ."
}
Else
{
If (hsf-test = "probably ")
{
Document. getElementById ("checkVideoResult"). innerHTML = "Yes! Full support! ";
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Well. Some support .";
}
}
}
Else
{
If (oggTest = "probably ")
{
Document. getElementById ("checkVideoResult"). innerHTML = "Yes! Full support! ";
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Well. Some support .";
}
}
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Sorry. No video support ."
}
}

Function checkVideo ()
{
If (!! Document. createElement ('video'). canPlayType)
{
// Create a video Element
Var vidTest = document. createElement ("video ");
// Checks whether videos in ogg format can be played.
OggTest = vidTest. canPlayType ('video/ogg; codecs = "theora, vorbis "');
If (! OggTest)
{
// Checks whether MP4 videos can be played.
Hsf-test = vidTest. canPlayType ('video/mp4; codecs = "avc1.42E01E, mp4a. 40.2 "');
If (! Hsf-test)
{
Document. getElementById ("checkVideoResult"). innerHTML = "Sorry. No video support ."
}
Else
{
If (hsf-test = "probably ")
{
Document. getElementById ("checkVideoResult"). innerHTML = "Yes! Full support! ";
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Well. Some support .";
}
}
}
Else
{
If (oggTest = "probably ")
{
Document. getElementById ("checkVideoResult"). innerHTML = "Yes! Full support! ";
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Well. Some support .";
}
}
}
Else
{
Document. getElementById ("checkVideoResult"). innerHTML = "Sorry. No video support ."
}
} [Html] view plaincopyprint? CanPlayType method description:
1. Definition: checks whether the browser can play the specified audio/video type.
2. Return Value:
"Probably" indicates that the browser is most likely to support this video or audio.
"Maybe" indicates that the browser may support this video or audio.
"" (Empty string), indicating that the browser does not support this video or audio.

Note: Internet Explorer 8 and earlier versions do not support this method.
 
Syntax: audio | video. canPlayType (type ))
 
Parameter description:
 
Type: the audio or video type to be detected,
Common Values: video/ogg; video/mp4; video/webm; audio/mpeg; audio/ogg; audio/mp4
Common Values (including audio or video codecs to be detected ):
Video/ogg; codecs = "theora, vorbis"
Video/mp4; codecs = "avc1.4D401E, mp4a. 40.2"
Video/webm; codecs = "vp8.0, vorbis"
Audio/ogg; codecs = "vorbis"
Audio/mp4; codecs = "mp4a. 40.5"

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Related Keywords:
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