62 lines
1.7 KiB
JavaScript
62 lines
1.7 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
/*@
|
||
|
|
Ox.getVideoFormat <f> Get supported video formats
|
||
|
|
(formats) -> <a> of supported formats
|
||
|
|
formats <a> list of available formats
|
||
|
|
@*/
|
||
|
|
Ox.getVideoFormat = function(formats) {
|
||
|
|
var aliases = {
|
||
|
|
'mp4': 'h264',
|
||
|
|
'm4v': 'h264',
|
||
|
|
'ogv': 'ogg'
|
||
|
|
},
|
||
|
|
format,
|
||
|
|
tests = {
|
||
|
|
'h264': 'video/mp4; codecs="avc1.42E01E, mp4a.40.2"',
|
||
|
|
'ogg': 'video/ogg; codecs="theora, vorbis"',
|
||
|
|
'webm': 'video/webm; codecs="vp8, vorbis"'
|
||
|
|
},
|
||
|
|
userAgent = navigator.userAgent.toLowerCase(),
|
||
|
|
video = document.createElement('video');
|
||
|
|
Ox.forEach(formats, function(f) {
|
||
|
|
var alias = aliases[f] || f;
|
||
|
|
if (!!(video.canPlayType && video.canPlayType(tests[alias]).replace('no', ''))) {
|
||
|
|
// disable WebM on Safari/Perian, seeking does not work
|
||
|
|
if (!(
|
||
|
|
alias == 'webm' && /safari/.test(userAgent)
|
||
|
|
&& !/chrome/.test(userAgent) && !/linux/.test(userAgent)
|
||
|
|
)) {
|
||
|
|
format = f;
|
||
|
|
return false; // break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return format;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*@
|
||
|
|
Ox.getVideoInfo <f>
|
||
|
|
url <s> video url
|
||
|
|
callback <f> gets called with object containing duration, width, height
|
||
|
|
@*/
|
||
|
|
|
||
|
|
Ox.getVideoInfo = Ox.queue(function(url, callback) {
|
||
|
|
var video = document.createElement('video');
|
||
|
|
video.addEventListener('loadedmetadata', function(event) {
|
||
|
|
var info = {
|
||
|
|
duration: this.duration,
|
||
|
|
widht: this.videoWidth,
|
||
|
|
height: this.videoHeight,
|
||
|
|
};
|
||
|
|
this.src = '';
|
||
|
|
callback(info);
|
||
|
|
video = null;
|
||
|
|
});
|
||
|
|
video.preload = 'metadata';
|
||
|
|
video.src = url;
|
||
|
|
}, {
|
||
|
|
maxThreads: 4
|
||
|
|
});
|