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| 'use strict';
|
| var gifRegexp = /^GIF8[79]a/;
| function isGIF (buffer) {
| var signature = buffer.toString('ascii', 0, 6);
| return (gifRegexp.test(signature));
| }
|
| function calculate(buffer) {
| return {
| 'width': buffer.readUInt16LE(6),
| 'height': buffer.readUInt16LE(8)
| };
| }
|
| module.exports = {
| 'detect': isGIF,
| 'calculate': calculate
| };
|
|
