Created
February 3, 2011 00:06
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H264 Support Revision
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>H264</title> | |
| <script src="h264.js"></script> | |
| </head> | |
| <body> | |
| <video id='video' style="display:" | |
| controls> | |
| <source id='mp4' | |
| src="http://media.w3.org/2010/05/sintel/trailer.mp4" | |
| type='video/mp4; codecs="avc1, mp4a"'> | |
| <p>Your user agent does not support the HTML5 Video element.</p> | |
| </video> | |
| </body> | |
| </html> |
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| /* | |
| * H264 Substitution | |
| * Version 0.1.0 | |
| * | |
| * Inspired by Windows Media Player HTML5 Extension | |
| * | |
| * Copyright (c) 2011 Rick Waldron | |
| * Dual licensed under the MIT and GPL licenses. | |
| * http://code.bocoup.com/license/ | |
| */ | |
| (function ( win, doc ) { | |
| var H264 = { | |
| support: { | |
| mime: [ "video/mp4", "video/x-ms-wmv" ], | |
| exts: [ ".mp4", ".wmv", ".mp4v", ".m4v" ], | |
| hasBaseSupport: ( doc.createElement("video").canPlayType("video/mp4; codecs='avc1.42E01E'") !== "probably" ? false : true ) | |
| }, | |
| media: { | |
| isSupported: function( vos ) { | |
| var str = ( vos.type || vos.src ).toLowerCase(), | |
| index = vos.type ? str.indexOf( ";" ) : str.lastIndexOf( "." ), | |
| accepts = H264.support.mime.concat( H264.support.ext ), | |
| idx = 0, | |
| test; | |
| if ( index === -1 ) { | |
| return false; | |
| } | |
| test = vos.type ? str.slice( 0, index ) : str.slice( index ); | |
| return ( accepts.indexOf( test ) >= 0 ) ? true : false ; | |
| }, | |
| sources: function( video ) { | |
| if ( video.src && H264.media.isSupported( video ) ) { | |
| return video.src; | |
| } | |
| var sources = video.getElementsByTagName( "source" ), | |
| supported = null, | |
| idx = 0; | |
| if ( !sources.length ) { | |
| return supported; | |
| } | |
| for ( ; idx < sources.length; idx++ ) { | |
| if ( sources[ idx ].src && H264.media.isSupported( sources[ idx ] ) ) { | |
| supported = sources[ idx ].src; | |
| } | |
| } | |
| return supported; | |
| } | |
| }, | |
| controls: function( video ) { | |
| var isSupported = H264.media.sources( video ); | |
| if ( !isSupported ) { | |
| return null; | |
| } | |
| var control = doc.createElement("object"), | |
| bounds = { | |
| width: "Width", | |
| height: "Height" | |
| }, | |
| pads = { | |
| width: [ "Right", "Left" ], | |
| height: [ "Top", "Bottom" ] | |
| }, | |
| dims = { | |
| width: 320, | |
| height: 240 | |
| }, | |
| copy = [ "id", "dir", "className", "title", "draggable", "lang", "spellcheck" ], | |
| idx = 0, | |
| prop, | |
| uiControls, param, params; | |
| for ( prop in bounds ) { | |
| control[ prop ] = ( function ( video ) { | |
| var ret = video[ prop ]; | |
| if ( ret <= 0 ) { | |
| if ( video[ "client" + bounds[ prop ] ] ) { | |
| // set the returning bounds dimension | |
| ret = video[ "client" + bounds[ prop ] ]; | |
| // Adjust dims for padding and radix | |
| ret -= parseInt( ( video.style[ "padding" + pads[ prop ][ 0 ] ] || 0 ) + | |
| ( video.style[ "padding" + pads[ prop ][ 1 ] ] || 0 ), 10 ); | |
| } | |
| } else { | |
| // set the returning bounds dimension | |
| ret = dims[ prop ]; | |
| } | |
| // return the bounding box dimension | |
| return ret + "px"; | |
| })(video); | |
| } | |
| // Copy all the props needed as defined | |
| for ( ; idx < copy.length; idx++ ) { | |
| prop = copy[ idx ]; | |
| if ( video[ prop ] ) { | |
| control[ prop ] = video[ prop ]; | |
| } | |
| } | |
| // Copy all the styles | |
| for ( prop in video.style ) { | |
| control.style[ prop ] = video.style[ prop ]; | |
| } | |
| control.setAttribute( "type", "application/x-ms-wmp" ); | |
| // Set uiMode | |
| control.setAttribute( "uiMode", video.controls ? "full" : "none" ); | |
| // Implicitly set autoplay mode | |
| param = doc.createElement("param"); | |
| param.name = "autostart"; | |
| param.value = video.autoplay || false; | |
| control.appendChild( param ); | |
| // Implicitly set media url | |
| param = doc.createElement("param"); | |
| param.name = "url"; | |
| param.value = isSupported; | |
| control.appendChild( param ); | |
| return control; | |
| }, | |
| convert: function() { | |
| var videos = doc.getElementsByTagName("video"), | |
| idx = 0, | |
| video, controls, replaced; | |
| // Return early if there are no videos to play | |
| if ( !videos.length ) { | |
| return; | |
| } | |
| for ( ; idx < videos.length; idx++ ) { | |
| video = videos[ idx ]; | |
| // Remove Mutation Listener - TODO: Replace logic, these are deprecated | |
| video.removeEventListener( "DOMSubtreeModified", H264.convert, true ); | |
| controls = H264.controls( video ); | |
| if ( controls ) { | |
| video.parentNode.insertBefore( controls, video ); | |
| video.className = "h264_replacement_junk"; | |
| } else { | |
| // Add Mutation Listener - TODO: Replace logic, these are deprecated | |
| video.addEventListener( "DOMSubtreeModified", H264.convert, true) | |
| } | |
| } | |
| // This is the only part i liked | |
| while( replaced = doc.querySelector( ".h264_replacement_junk" ) ) { | |
| replaced.parentNode.removeChild( replaced ); | |
| } | |
| } | |
| }; | |
| win.H264 = H264; | |
| })( this, this.document ); | |
| document.addEventListener( "DOMContentLoaded", function () { | |
| if ( !H264.support.hasBaseSupport ) { | |
| H264.convert(); | |
| } | |
| }, false); |
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