whether-image
Version:
check a file whether image
17 lines (16 loc) • 658 B
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
// image head define
exports.default = {
bmp: [{ begin: [0x42, 0x4d] }],
jpg: [{ begin: [0xff, 0xd8], end: [0xff, 0xd9] }],
jpeg: [{ begin: [0xff, 0xd8], end: [0xff, 0xd9] }],
png: [{ begin: [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a] }],
gif: [
{ begin: [0x47, 0x49, 0x46, 0x38, 0x39, 0x61] },
{ begin: [0x47, 0x49, 0x46, 0x38, 0x37, 0x61] }
],
webp: [{ begin: [0x52, 0x49, 0x46, 0x46] }],
tif: [{ begin: [0x49, 0x49] }, { begin: [0x4d, 0x4d] }],
tiff: [{ begin: [0x49, 0x49] }, { begin: [0x4d, 0x4d] }]
};