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extensions.ts
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/
extensions.ts
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import { MetaType } from '../meta/MetaType';
import {
MediaFileAlias,
MediaFileExtension,
} from '../media/MediaFileExtension';
// The extensions are identified by their suffix
// A list of aliases will match each .<ext> with .<alias>.json
// If an alias is an object, the output extension can forcibly
// be set based on the extension found in the json file
let extensions: MediaFileExtension[] = [
{ suffix: '.jpg', metaType: MetaType.EXIF },
{ suffix: '.jpeg', metaType: MetaType.EXIF },
{ suffix: '.png', metaType: MetaType.EXIF },
{ suffix: '.raw', metaType: MetaType.EXIF }, // could be TIFF
{ suffix: '.dng', metaType: MetaType.EXIF }, // based on TIFF
{ suffix: '.ico', metaType: MetaType.NONE },
{ suffix: '.tiff', metaType: MetaType.EXIF },
{ suffix: '.webp', metaType: MetaType.EXIF }, // based on RIFF
{ suffix: '.heic', metaType: MetaType.QUICKTIME },
{ suffix: '.heif', metaType: MetaType.QUICKTIME },
{ suffix: '.gif', metaType: MetaType.NONE },
{ suffix: '.qt', metaType: MetaType.QUICKTIME },
{ suffix: '.mov.qt', metaType: MetaType.QUICKTIME },
{ suffix: '.3gp', metaType: MetaType.QUICKTIME },
{ suffix: '.mp4v', metaType: MetaType.QUICKTIME },
{ suffix: '.mkv', metaType: MetaType.NONE },
{ suffix: '.wmv', metaType: MetaType.NONE },
{ suffix: '.webm', metaType: MetaType.NONE },
...['.mp4', '.mov'].map(
(suf): MediaFileExtension => ({
suffix: suf,
metaType: MetaType.QUICKTIME,
// Apple live photos
aliases: ['.heic', '.jpg', '.jpeg'],
})
),
// Google live photos
...['.mp', '.mvimg'].map(
(suf): MediaFileExtension => ({
suffix: suf,
metaType: MetaType.QUICKTIME,
aliases: [
{ suffix: '.jpg', out: '.mp4' },
{ suffix: '.jpeg', out: '.mp4' },
],
})
),
];
// match lower-/uppercase versions
extensions = extensions.flatMap((e) => {
const aliases = e.aliases?.flatMap((alias): MediaFileAlias[] => {
return typeof alias === 'string'
? [alias.toLowerCase(), alias.toUpperCase()]
: [
{ ...alias, suffix: alias.suffix.toLowerCase() },
{ ...alias, suffix: alias.suffix.toUpperCase() },
];
});
return [
{ ...e, suffix: e.suffix.toLowerCase(), aliases },
{ ...e, suffix: e.suffix.toUpperCase(), aliases },
];
});
export const supportedExtensions = extensions;