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Replace switch in support.mime with object literal and conditions, and make it return boolean

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This commit is contained in:
Albin Larsson 2018-06-15 15:07:37 +02:00
parent 64bb206d85
commit 2a186e425b
1 changed files with 29 additions and 47 deletions
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76
src/js/support.js
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@ -7,6 +7,15 @@ import browser from './utils/browser';
import { createElement } from './utils/elements';
import is from './utils/is';
// Default codecs for checking mimetype support
const defaultCodecs = {
'audio/ogg': 'vorbis',
'audio/wav': '1',
'video/webm': 'vp8, vorbis',
'video/mp4': 'avc1.42E01E, mp4a.40.2',
'video/ogg': 'theora',
};
// Check for feature support
const support = {
// Basic support
@ -41,56 +50,29 @@ const support = {
// Check for mime type support against a player instance
// Credits: http://diveintohtml5.info/everything.html
// Related: http://www.leanbackplayer.com/test/h5mt.html
mime(type) {
const { media } = this;
try {
// Bail if no checking function
if (!this.isHTML5 || !is.function(media.canPlayType)) {
return false;
}
// Check directly if codecs specified
if (type.includes('codecs=')) {
return media.canPlayType(type).replace(/no/, '');
}
// Type specific checks
if (this.isVideo) {
switch (type) {
case 'video/webm':
return media.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/no/, '');
case 'video/mp4':
return media.canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"').replace(/no/, '');
case 'video/ogg':
return media.canPlayType('video/ogg; codecs="theora"').replace(/no/, '');
default:
return false;
}
} else if (this.isAudio) {
switch (type) {
case 'audio/mpeg':
return media.canPlayType('audio/mpeg;').replace(/no/, '');
case 'audio/ogg':
return media.canPlayType('audio/ogg; codecs="vorbis"').replace(/no/, '');
case 'audio/wav':
return media.canPlayType('audio/wav; codecs="1"').replace(/no/, '');
default:
return false;
}
}
} catch (e) {
mime(inputType) {
const [mediaType] = inputType.split('/');
if (!this.isHTML5 || mediaType !== this.type) {
return false;
}
// If we got this far, we're stuffed
return false;
let type;
if (inputType && inputType.includes('codecs=')) {
// Use input directly
type = inputType;
} else if (inputType === 'audio/mpeg') {
// Skip codec
type = 'audio/mpeg;';
} else if (inputType in defaultCodecs) {
// Use codec
type = `${inputType}; codecs="${defaultCodecs[inputType]}"`;
}
try {
return Boolean(type && this.media.canPlayType(type).replace(/no/, ''));
} catch (err) {
return false;
}
},
// Check for textTracks support