Import Ruty

This commit is contained in:
2024-03-11 00:54:46 +01:00
parent 2c0c53a22b
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# node-imageinfo
This is a small package for node.js to allow the analysis of image data in a Buffer, and return mime-type, and image dimensions for the data.
It is designed to be fast, completely written in javascript and have no dependencies on external packages or libraries.
Currently it supports Png, Jpeg, Gif and (uncompressed) Swf analysis.
If you also have zlib available (`npm install zlib`) then it will support compressed Swf files.
## Usage:
To install imageinfo into your project, use `npm install imageinfo`, then it's simply a matter of calling it with the buffer object containing your image, like this:
var imageinfo = require('imageinfo'),
fs = require('fs');
fs.readFile('testimage', function(err, data) {
if (err) throw err;
info = imageinfo(data);
console.log("Data is type:", info.mimeType);
console.log(" Size:", data.length, "bytes");
console.log(" Dimensions:", info.width, "x", info.height);
});
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function readUInt32(buffer, offset, bigEndian) {
if (buffer.readUInt32) {
return buffer.readUInt32(offset, bigEndian);
}
var value;
if (bigEndian) {
if (buffer.readUInt32BE) {
return buffer.readUInt32BE(offset);
}
value = (buffer[offset] << 24) + (buffer[offset+1] << 16) + (buffer[offset+2] << 8) + buffer[offset+3];
}
else {
if (buffer.readUInt32LE) {
return buffer.readUInt32LE(offset);
}
value = buffer[offset] + (buffer[offset+1] << 8) + (buffer[offset+2] << 16) + (buffer[offset+3] << 24);
}
return value;
}
function readUInt16(buffer, offset, bigEndian) {
if (buffer.readUInt16) {
return buffer.readUInt16(offset, bigEndian);
}
var value;
if (bigEndian) {
if (buffer.readUInt16BE) {
return buffer.readUInt16BE(offset);
}
value = (buffer[offset] << 8) + buffer[offset+1];
}
else {
if (buffer.readUInt16LE) {
return buffer.readUInt16LE(offset);
}
value = buffer[offset] + (buffer[offset+1] << 8);
}
return value;
}
function readBit(buffer, offset, bitOffset) {
if (bitOffset > 7) {
offset += Math.floor(bitOffset / 8);
bitOffset = bitOffset % 8;
}
var b = buffer[offset];
if (bitOffset < 7) {
b >>>= (7 - bitOffset);
}
var val = b & 0x01;
return val;
}
function readBits(buffer, offset, bitOffset, bitLen, signed) {
var val = 0;
var neg = false;
if (signed) {
if (readBit(buffer, offset, bitOffset) > 0) {
neg = true;
}
bitLen--;
bitOffset++;
}
var bytes = [];
for (var i = 0; i < bitLen; i++) {
var b = readBit(buffer, offset, bitOffset + i);
if (i>0 && (bitLen - i) % 8 == 0) {
bytes.push(val);
val = 0;
}
val <<= 1;
val |= b;
}
bytes.push(val);
val = new Buffer(bytes);
val.negative = neg?true:false;
return val;
}
function imageInfoPng(buffer) {
var imageHeader = [0x49, 0x48, 0x44, 0x52],
pos = 12;
if (!checkSig(buffer, pos, imageHeader)) {
return false;
}
pos += 4;
return {
type: 'image',
format: 'PNG',
mimeType: 'image/png',
width: readUInt32(buffer, pos, true),
height: readUInt32(buffer, pos+4, true),
};
}
function imageInfoJpg(buffer) {
var pos = 2,
len = buffer.length,
sizeSig = [0xff, [0xc0, 0xc2]];
while (pos < len) {
if (checkSig(buffer, pos, sizeSig)) {
pos += 5;
return {
type: 'image',
format: 'JPG',
mimeType: 'image/jpeg',
width: readUInt16(buffer, pos+2, true),
height: readUInt16(buffer, pos, true),
};
}
pos += 2;
var size = readUInt16(buffer, pos, true);
pos += size;
}
}
function imageInfoGif(buffer) {
var pos = 6;
return {
type: 'image',
format: 'GIF',
mimeType: 'image/gif',
width: readUInt16(buffer, pos, false),
height: readUInt16(buffer, pos+2, false),
};
}
function imageInfoSwf(buffer) {
var pos = 8,
bitPos = 0,
val;
if (buffer[0] === 0x43) {
try {
// If you have zlib available ( npm install zlib ) then we can read compressed flash files
buffer = require('zlib').inflate(buffer.slice(8, 100));
pos = 0;
}
catch (ex) {
// Can't get width/height of compressed flash files... yet (need zlib)
return {
type: 'flash',
format: 'SWF',
mimeType: 'application/x-shockwave-flash',
width: null,
height: null,
}
}
}
var numBits = readBits(buffer, pos, bitPos, 5)[0];
bitPos += 5;
val = readBits(buffer, pos, bitPos, numBits, true);
var xMin = (numBits > 9 ? readUInt16(val, 0, true) : val[0]) * (val.negative ? -1 : 1);
bitPos += numBits;
val = readBits(buffer, pos, bitPos, numBits, true);
var xMax = (numBits > 9 ? readUInt16(val, 0, true) : val[0]) * (val.negative ? -1 : 1);
bitPos += numBits;
val = readBits(buffer, pos, bitPos, numBits, true);
var yMin = (numBits > 9 ? readUInt16(val, 0, true) : val[0]) * (val.negative ? -1 : 1);
bitPos += numBits;
val = readBits(buffer, pos, bitPos, numBits, true);
var yMax = (numBits > 9 ? readUInt16(val, 0, true) : val[0]) * (val.negative ? -1 : 1);
return {
type: 'flash',
format: 'SWF',
mimeType: 'application/x-shockwave-flash',
width: Math.ceil((xMax - xMin) / 20),
height: Math.ceil((yMax - yMin) / 20),
};
}
function checkSig(buffer, offset, sig) {
var len = sig.length;
for (var i = 0; i < len; i++) {
var b = buffer[i+offset],
s = sig[i],
m = false;
if ('number' == typeof s) {
m = s === b;
}
else {
for (var k in s) {
var o = s[k];
if (o === b) {
m = true;
}
}
}
if (!m) {
return false;
}
}
return true;
}
module.exports = function imageInfo(buffer, path) {
var pngSig = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a];
var jpgSig = [0xff, 0xd8, 0xff];
var gifSig = [0x47, 0x49, 0x46, 0x38, [0x37, 0x39], 0x61];
var swfSig = [[0x46, 0x43], 0x57, 0x53];
if (checkSig(buffer, 0, pngSig)) return imageInfoPng(buffer);
if (checkSig(buffer, 0, jpgSig)) return imageInfoJpg(buffer);
if (checkSig(buffer, 0, gifSig)) return imageInfoGif(buffer);
if (checkSig(buffer, 0, swfSig)) return imageInfoSwf(buffer);
return false;
};
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{
"name": "imageinfo",
"description": "A node.js package that returns information about an image or flash file such as type, dimensions etc.",
"homepage": "https://github.com/NorgannasAddOns/node-imageinfo",
"version": "1.0.4",
"author": "Norganna <ken@norganna.com>",
"repository": {
"type": "git",
"url": "git://github.com/NorgannasAddOns/node-imageinfo.git"
},
"bugs": {
"url": "https://github.com/NorgannasAddOns/node-imageinfo/issues"
},
"main": "index",
"keywords": [
"image", "info", "jpg", "jpeg", "png", "gif", "swf", "dimensions", "size", "type", "mime", "format"
],
"engines": {
"node": ">=0.4"
},
"dependencies": {},
"devDependencies": {},
"directories": {
"lib": ".",
"test": "test"
}
}
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var imageinfo = require('../index.js'),
assert = require('assert'),
tests = {};
function test(type) {
var data = tests[type].data;
var expect = tests[type].expect;
info = imageinfo(data);
assert.deepEqual(info, expect);
console.log(" Decoded as:", info.mimeType);
console.log(" Dimensions:", info.width, "x", info.height);
}
module.exports = function () {
console.log("Beginning tests")
for (var type in tests) {
if (tests.hasOwnProperty(type)) {
console.log("Testing", type, "data:");
test(type);
}
}
}
tests.png = {expect:{type:'image', format:'PNG', mimeType:'image/png', width:16, height:32}, data: new Buffer([
0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d,
0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x20,
0x08, 0x06, 0x00, 0x00, 0x00, 0x1b, 0x89, 0xf8, 0xcc, 0x00, 0x00, 0x02,
0x91, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0x7d, 0x95, 0x41, 0x8e, 0xe3,
0x56, 0x0c, 0x44, 0x1f, 0xf9, 0xff, 0x97, 0x48, 0x1b, 0xc8, 0x04, 0x01,
0x7a, 0x99, 0x13, 0x64, 0x9b, 0x0b, 0xcc, 0xd1, 0xfa, 0x1a, 0x73, 0x9a,
0xac, 0x73, 0x82, 0xac, 0xb3, 0x99, 0x6d, 0x02, 0x64, 0x80, 0x4c, 0xc7,
0xfa, 0x95, 0xc5, 0xb7, 0x6c, 0xd9, 0x2d, 0xb5, 0x01, 0xc3, 0x10, 0xe0,
0x22, 0x8b, 0xc5, 0x62, 0xc9, 0x24, 0xf1, 0xee, 0xf3, 0xe5, 0xd7, 0xc6,
0xf7, 0xbf, 0x7f, 0xa4, 0x97, 0x9f, 0x7e, 0xf9, 0x52, 0xfe, 0x68, 0xad,
0xd1, 0x5a, 0x63, 0x9a, 0x26, 0xce, 0xe7, 0x33, 0xd3, 0x34, 0xdd, 0x9e,
0x7d, 0x17, 0xfc, 0xd7, 0x3f, 0x41, 0x51, 0xe0, 0x8a, 0x2d, 0x78, 0xfd,
0xae, 0xcf, 0xad, 0xb5, 0x9d, 0x02, 0x97, 0x3f, 0x67, 0x72, 0x09, 0xa4,
0x84, 0x9e, 0xad, 0x35, 0xe6, 0x79, 0xbe, 0x01, 0xb6, 0xe0, 0xf7, 0x0c,
0x5e, 0x3f, 0x57, 0x96, 0x4f, 0x89, 0x7a, 0xe2, 0x0a, 0x8c, 0xd8, 0xfe,
0xf9, 0x99, 0xc1, 0x63, 0x81, 0x57, 0xab, 0xfc, 0xfc, 0x35, 0x29, 0x0a,
0x0a, 0xc1, 0xa5, 0x9c, 0xe8, 0x8a, 0x6d, 0xe7, 0xf3, 0xf9, 0xfc, 0x00,
0x7e, 0x1c, 0xe1, 0xe5, 0x25, 0xf8, 0xb6, 0x04, 0xff, 0xd5, 0xd3, 0xda,
0x1d, 0x27, 0x9e, 0x29, 0x6f, 0x0b, 0xb6, 0xd6, 0xa8, 0x00, 0xfc, 0xf6,
0xb9, 0xe2, 0x3f, 0x9c, 0x40, 0x33, 0xbc, 0x05, 0xbd, 0x06, 0xbd, 0x07,
0xe6, 0xb9, 0x07, 0x7a, 0xcf, 0xe0, 0xf7, 0xaf, 0xc9, 0x9b, 0x82, 0x7f,
0x95, 0x78, 0x0d, 0xa4, 0x5c, 0x20, 0x41, 0xb9, 0x05, 0x3e, 0x83, 0x87,
0x06, 0xaf, 0x56, 0x87, 0xea, 0x2d, 0x69, 0x35, 0x91, 0x92, 0xae, 0x28,
0xe6, 0x81, 0xc8, 0xad, 0x78, 0xfb, 0x22, 0xbe, 0xbc, 0x04, 0xea, 0xc9,
0xf4, 0x36, 0xd3, 0xdf, 0x62, 0x41, 0x49, 0x29, 0x89, 0x2d, 0x81, 0xdd,
0x7d, 0xb0, 0x0a, 0xb8, 0xd5, 0x64, 0x68, 0xb0, 0x7c, 0x4a, 0x54, 0x92,
0xde, 0x93, 0xa2, 0x2c, 0x5d, 0x81, 0x5d, 0xa2, 0xcb, 0x4f, 0xee, 0x63,
0x0b, 0x7b, 0x06, 0xba, 0x6b, 0xb0, 0x76, 0xbf, 0x52, 0xc7, 0x7c, 0x6c,
0xc0, 0x14, 0x30, 0x46, 0x78, 0xee, 0xba, 0x65, 0x52, 0x29, 0x53, 0xd0,
0x97, 0xa4, 0xf7, 0x00, 0x12, 0x57, 0x22, 0x0f, 0xc7, 0x72, 0x1d, 0x61,
0x9a, 0x26, 0x6a, 0xad, 0x07, 0x1a, 0x5c, 0xbe, 0x5f, 0x6d, 0x4b, 0x2e,
0xee, 0x89, 0x08, 0x3a, 0x81, 0xf5, 0xa0, 0xf7, 0x58, 0xe7, 0xdf, 0x5b,
0xe7, 0xd5, 0x07, 0x4a, 0xf0, 0xc4, 0x2e, 0x81, 0x14, 0xa0, 0xc4, 0x89,
0x2e, 0x4b, 0xcc, 0x4e, 0x2b, 0xb0, 0xd6, 0xca, 0x9e, 0xa9, 0x2a, 0xa5,
0x26, 0x7d, 0x09, 0xcc, 0xb3, 0x18, 0x81, 0x3c, 0x51, 0x9f, 0x11, 0xe1,
0xc6, 0x7c, 0x24, 0xde, 0x86, 0x81, 0x27, 0xa6, 0xc0, 0x96, 0x40, 0x63,
0xee, 0x2e, 0x4b, 0x37, 0x02, 0x78, 0x60, 0xb0, 0x57, 0xcc, 0xe9, 0x4b,
0x2c, 0x2c, 0x89, 0x2c, 0xc1, 0xb3, 0xcb, 0x86, 0x0e, 0x46, 0x20, 0x62,
0xef, 0x84, 0x1f, 0x19, 0x98, 0xc2, 0xe4, 0xe3, 0x7c, 0xd5, 0x67, 0x47,
0x33, 0xc5, 0x03, 0x29, 0x85, 0xe5, 0x36, 0x81, 0x0e, 0xf2, 0xc0, 0xd3,
0x4d, 0x01, 0x9e, 0xf8, 0x95, 0x45, 0x57, 0x02, 0x61, 0xc6, 0x61, 0x22,
0x6d, 0x18, 0x5c, 0xd7, 0xc6, 0x30, 0x0e, 0x46, 0x38, 0x04, 0xb2, 0xd3,
0x36, 0x50, 0x8e, 0xce, 0xda, 0xbb, 0x94, 0xb8, 0x27, 0xf4, 0x40, 0x43,
0x38, 0x58, 0x35, 0x18, 0x46, 0x9a, 0xe7, 0x79, 0xf7, 0x0e, 0x1e, 0xb6,
0xd0, 0xf1, 0x93, 0xc3, 0x2c, 0x29, 0xcc, 0x2c, 0x46, 0x11, 0xcb, 0x23,
0x0b, 0xdf, 0x1c, 0xea, 0xf4, 0xb9, 0x2f, 0x36, 0x74, 0x30, 0x56, 0x70,
0x4a, 0x4a, 0xc3, 0xf2, 0x23, 0xfa, 0x57, 0x06, 0x96, 0x5e, 0x08, 0xfa,
0x6d, 0x7d, 0x89, 0x46, 0x21, 0xf1, 0x98, 0x07, 0x37, 0xd0, 0xc6, 0x13,
0x15, 0xfa, 0x00, 0x1b, 0x33, 0x22, 0x24, 0x72, 0xb0, 0x50, 0x98, 0x2c,
0x3e, 0x4a, 0xa4, 0xf3, 0xf9, 0xbc, 0x6a, 0x40, 0x5e, 0x37, 0x90, 0x48,
0x81, 0x08, 0x61, 0x27, 0x83, 0xba, 0x97, 0x05, 0x4f, 0x2f, 0x16, 0xe5,
0x08, 0xd3, 0x3b, 0xf5, 0x6b, 0x16, 0x04, 0xc0, 0x47, 0xb7, 0x30, 0x8e,
0xc9, 0x7c, 0x5c, 0xa0, 0x18, 0xbf, 0x58, 0x22, 0x0b, 0xb3, 0x91, 0xd8,
0x47, 0x02, 0xde, 0xaf, 0x51, 0x3d, 0x30, 0x4b, 0x6c, 0x58, 0xd7, 0xee,
0x77, 0x80, 0xd0, 0x61, 0xf7, 0x35, 0x23, 0x2b, 0x46, 0x4a, 0x96, 0xc6,
0x8d, 0x76, 0x22, 0x2a, 0x06, 0x86, 0x1d, 0xde, 0x41, 0x6b, 0x8d, 0x52,
0xca, 0x58, 0x23, 0xf4, 0x00, 0x4b, 0x1b, 0x0e, 0xac, 0x92, 0x30, 0x19,
0x42, 0xbb, 0x1a, 0xd4, 0x5a, 0x29, 0xa5, 0x00, 0xf0, 0x3f, 0xf1, 0x0a,
0xe7, 0x17, 0xab, 0x56, 0xad, 0x04, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45,
0x4e, 0x44, 0xae, 0x42, 0x60, 0x82
])};
tests.jpeg = {expect:{type:'image', format:'JPG', mimeType:'image/jpeg', width:16, height:32}, data: new Buffer([
0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
0x01, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x02, 0x02, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x04, 0x03,
0x03, 0x02, 0x03, 0x05, 0x04, 0x05, 0x05, 0x05, 0x04, 0x05, 0x05, 0x05,
0x06, 0x08, 0x06, 0x05, 0x06, 0x07, 0x06, 0x05, 0x05, 0x07, 0x09, 0x07,
0x07, 0x08, 0x08, 0x08, 0x09, 0x08, 0x05, 0x06, 0x09, 0x0a, 0x09, 0x08,
0x0a, 0x08, 0x08, 0x08, 0x08, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x01, 0x01,
0x01, 0x02, 0x02, 0x02, 0x04, 0x02, 0x02, 0x04, 0x08, 0x05, 0x05, 0x05,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0xff, 0xc0, 0x00, 0x11, 0x08, 0x00, 0x20, 0x00, 0x10, 0x03,
0x01, 0x22, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
0x18, 0x00, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x06, 0x08, 0x09, 0xff,
0xc4, 0x00, 0x29, 0x10, 0x00, 0x01, 0x02, 0x03, 0x06, 0x05, 0x05, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x04, 0x00,
0x03, 0x07, 0x05, 0x06, 0x11, 0x12, 0x21, 0x71, 0x14, 0x23, 0x41, 0x42,
0x51, 0x32, 0x34, 0x52, 0xb1, 0xf1, 0xff, 0xc4, 0x00, 0x16, 0x01, 0x01,
0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x08, 0x06, 0x07, 0xff, 0xc4, 0x00, 0x21, 0x11, 0x00,
0x00, 0x04, 0x06, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x02, 0x04, 0x05, 0x00, 0x06, 0x11, 0x12, 0x13,
0xa1, 0x08, 0x21, 0xd1, 0x03, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00,
0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00, 0x3b, 0x1b, 0xfb, 0x79, 0x25,
0xd9, 0x8c, 0x1c, 0x48, 0x4c, 0xc0, 0x17, 0x94, 0xe6, 0xd7, 0x68, 0x57,
0x55, 0x07, 0xa2, 0xf8, 0x22, 0x4a, 0xf8, 0x5c, 0x71, 0x29, 0x1e, 0x9f,
0x1f, 0xb0, 0xc6, 0xfa, 0xb1, 0x7d, 0xb5, 0x7d, 0xce, 0x3d, 0xdd, 0x76,
0x80, 0xfc, 0xa1, 0xd4, 0x5c, 0xcb, 0x6f, 0x67, 0x8e, 0x10, 0x02, 0x40,
0x24, 0x84, 0xf9, 0x8c, 0xfe, 0x52, 0x99, 0xca, 0xe0, 0xbd, 0x59, 0x0a,
0x3d, 0x7c, 0xec, 0xdd, 0xfe, 0x45, 0xbc, 0xcd, 0x2f, 0x19, 0x0a, 0x24,
0xc7, 0x30, 0x76, 0x7b, 0xf5, 0x67, 0xb0, 0x48, 0xb5, 0x62, 0xfb, 0x7b,
0xfe, 0x7f, 0xcb, 0xae, 0xd1, 0x49, 0xa8, 0xc5, 0x19, 0x09, 0x4b, 0x34,
0xa5, 0xa6, 0x00, 0x04, 0xf6, 0xc4, 0x9e, 0xa5, 0x5e, 0xb5, 0xbd, 0x74,
0xe5, 0xbc, 0xb9, 0xa4, 0x95, 0x12, 0x3e, 0xa3, 0x50, 0xa8, 0x9d, 0x19,
0x49, 0x9a, 0xc7, 0x3b, 0x64, 0x84, 0x02, 0x09, 0xcc, 0x9d, 0x30, 0x1a,
0x98, 0x34, 0xf1, 0x2e, 0x6a, 0x17, 0x47, 0x17, 0x83, 0x56, 0xb6, 0xe0,
0xde, 0x6f, 0x21, 0x01, 0xc9, 0xa9, 0x6c, 0x1b, 0x90, 0xb5, 0x85, 0x28,
0x26, 0xcd, 0xac, 0x51, 0xff, 0xd9
])};
tests['jpg progressive'] = {expect:{type:'image', format:'JPG', mimeType:'image/jpeg', width:16, height:32}, data: new Buffer([
0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
0x02, 0x00, 0x00, 0x64, 0x00, 0x64, 0x00, 0x00, 0xff, 0xec, 0x00, 0x11,
0x44, 0x75, 0x63, 0x6b, 0x79, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00,
0x50, 0x00, 0x00, 0xff, 0xee, 0x00, 0x26, 0x41, 0x64, 0x6f, 0x62, 0x65,
0x00, 0x64, 0xc0, 0x00, 0x00, 0x00, 0x01, 0x03, 0x00, 0x15, 0x04, 0x03,
0x06, 0x0a, 0x0d, 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x02, 0x07, 0x00,
0x00, 0x02, 0x4e, 0x00, 0x00, 0x02, 0xa0, 0xff, 0xdb, 0x00, 0x84, 0x00,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x02,
0x02, 0x02, 0x03, 0x04, 0x03, 0x02, 0x02, 0x03, 0x04, 0x05, 0x04, 0x04,
0x04, 0x04, 0x04, 0x05, 0x06, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x06,
0x06, 0x07, 0x07, 0x08, 0x07, 0x07, 0x06, 0x09, 0x09, 0x0a, 0x0a, 0x09,
0x09, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
0x0c, 0x0c, 0x0c, 0x0c, 0x01, 0x03, 0x03, 0x03, 0x05, 0x04, 0x05, 0x09,
0x06, 0x06, 0x09, 0x0d, 0x0b, 0x09, 0x0b, 0x0d, 0x0f, 0x0e, 0x0e, 0x0e,
0x0e, 0x0f, 0x0f, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0f, 0x0f, 0x0c, 0x0c,
0x0c, 0x0c, 0x0c, 0x0c, 0x0f, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xff, 0xc2, 0x00,
0x11, 0x08, 0x00, 0x20, 0x00, 0x10, 0x03, 0x01, 0x11, 0x00, 0x02, 0x11,
0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00, 0x8e, 0x00, 0x00, 0x02, 0x03,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x08, 0x09, 0x04, 0x06, 0x07, 0x01, 0x00, 0x03, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0x06, 0x07, 0x05, 0x10, 0x00, 0x02, 0x03, 0x00, 0x03, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x04, 0x00, 0x10,
0x02, 0x01, 0x11, 0x21, 0x12, 0x11, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x21, 0x31, 0x02, 0x12, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x13, 0x01, 0x00,
0x02, 0x01, 0x04, 0x02, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x00, 0x11, 0x10, 0x21, 0x31, 0x41, 0x51, 0x20, 0x61,
0x71, 0xa1, 0xc1, 0xf1, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02,
0x11, 0x03, 0x11, 0x00, 0x00, 0x01, 0x3b, 0x05, 0x21, 0x5d, 0x14, 0x3b,
0x1b, 0x5e, 0xdc, 0x0f, 0xd8, 0x70, 0xc9, 0x14, 0x47, 0x2a, 0x4b, 0xda,
0x6c, 0x99, 0x5d, 0x23, 0x51, 0xaa, 0x4d, 0xff, 0x00, 0xff, 0xda, 0x00,
0x08, 0x01, 0x01, 0x00, 0x01, 0x05, 0x02, 0x39, 0x3e, 0x72, 0x82, 0x51,
0xb3, 0x44, 0x52, 0xf1, 0xb3, 0x44, 0xd3, 0x8c, 0x97, 0xbe, 0x52, 0x4e,
0x7f, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x00, 0x01, 0x05, 0x02, 0x26,
0xba, 0xa3, 0x6e, 0x8d, 0xba, 0x2e, 0xeb, 0xff, 0xda, 0x00, 0x08, 0x01,
0x03, 0x00, 0x01, 0x05, 0x02, 0xc6, 0x68, 0x58, 0xa1, 0x62, 0x87, 0x9a,
0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x02, 0x06, 0x3f, 0x02, 0x0f, 0xff,
0xda, 0x00, 0x08, 0x01, 0x03, 0x02, 0x06, 0x3f, 0x02, 0x0f, 0xff, 0xda,
0x00, 0x08, 0x01, 0x01, 0x01, 0x06, 0x3f, 0x02, 0xae, 0x2b, 0xce, 0x2a,
0x62, 0xc4, 0xc7, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x03, 0x01, 0x3f,
0x21, 0x32, 0x5f, 0xcc, 0xd0, 0x18, 0xed, 0xca, 0x21, 0xed, 0xe3, 0x94,
0x87, 0x79, 0xaf, 0xc5, 0x3f, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x03,
0x01, 0x3f, 0x21, 0xa5, 0xe4, 0xb6, 0x38, 0xff, 0xda, 0x00, 0x08, 0x01,
0x03, 0x03, 0x01, 0x3f, 0x21, 0xb9, 0xf2, 0x0a, 0xf1, 0xff, 0xda, 0x00,
0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x00, 0x10, 0xa3,
0x0a, 0x30, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x03, 0x01, 0x3f, 0x10,
0x20, 0xd1, 0xa6, 0x3d, 0x8a, 0x85, 0x57, 0x5f, 0xd9, 0xf6, 0xff, 0x00,
0x93, 0xdc, 0x14, 0xad, 0x77, 0x3e, 0xdf, 0x9f, 0x88, 0x60, 0x0d, 0x20,
0x71, 0x35, 0x98, 0x24, 0x82, 0xde, 0x40, 0x8b, 0x67, 0x06, 0xb3, 0xff,
0xda, 0x00, 0x08, 0x01, 0x02, 0x03, 0x01, 0x3f, 0x10, 0x24, 0x31, 0xbb,
0xae, 0x37, 0x75, 0xc3, 0x30, 0x63, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03,
0x03, 0x01, 0x3f, 0x10, 0x42, 0x71, 0xb7, 0x8d, 0xbc, 0x00, 0x1c, 0x7f,
0xff, 0xd9
])};
tests['null'] = {expect:false, data: new Buffer([
0x00
])};
tests.gif = {expect:{type:'image', format:'GIF', mimeType:'image/gif', width:16, height:32}, data: new Buffer([
0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x10, 0x00, 0x20, 0x00, 0xf4, 0x1c,
0x00, 0xfe, 0x92, 0x23, 0x34, 0x34, 0x34, 0x3a, 0x3a, 0x3a, 0x42, 0x42,
0x42, 0x4b, 0x4b, 0x4b, 0x53, 0x53, 0x53, 0x5b, 0x5b, 0x5b, 0x63, 0x63,
0x63, 0x6c, 0x6c, 0x6c, 0x73, 0x73, 0x73, 0x7c, 0x7c, 0x7c, 0x83, 0x83,
0x83, 0x8a, 0x8a, 0x8a, 0x92, 0x92, 0x92, 0x9b, 0x9b, 0x9b, 0xa3, 0xa3,
0xa3, 0xab, 0xab, 0xab, 0xb4, 0xb4, 0xb4, 0xbb, 0xbb, 0xbb, 0xc4, 0xc4,
0xc4, 0xcb, 0xcb, 0xcb, 0xd3, 0xd3, 0xd3, 0xdb, 0xdb, 0xdb, 0xe3, 0xe3,
0xe3, 0xeb, 0xeb, 0xeb, 0xf4, 0xf4, 0xf4, 0xfe, 0xfe, 0xfe, 0x2d, 0x2d,
0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x21, 0xf9, 0x04, 0x05, 0x00, 0x00, 0x1c, 0x00, 0x2c, 0x00, 0x00,
0x00, 0x00, 0x10, 0x00, 0x20, 0x00, 0x40, 0x05, 0xb9, 0x20, 0x27, 0x8e,
0xe2, 0xb6, 0x05, 0xc2, 0x40, 0x14, 0x05, 0x09, 0xbc, 0x40, 0x61, 0x1c,
0x48, 0x92, 0x28, 0x0b, 0xac, 0x03, 0x0b, 0xd3, 0x38, 0x8e, 0x07, 0x04,
0xb2, 0x83, 0x45, 0x24, 0x93, 0x09, 0x85, 0x52, 0xb1, 0x90, 0x46, 0x80,
0x81, 0x4a, 0x76, 0xa0, 0x89, 0x8a, 0x35, 0x1c, 0xc3, 0xe7, 0x28, 0xbe,
0x82, 0xc3, 0x63, 0xd2, 0x0b, 0x60, 0x36, 0x2f, 0x17, 0x4c, 0xe6, 0x39,
0x42, 0x49, 0x59, 0x33, 0xf6, 0x6b, 0x55, 0xa8, 0xd6, 0x12, 0x50, 0x5d,
0xd5, 0xa6, 0x65, 0x70, 0xbc, 0x09, 0x0b, 0x3d, 0x3f, 0x41, 0x64, 0x84,
0x42, 0x10, 0x47, 0x64, 0x61, 0x12, 0x48, 0x4c, 0x64, 0x8e, 0x15, 0x67,
0x18, 0x64, 0x67, 0x69, 0x19, 0x1a, 0x1a, 0x6c, 0x25, 0x6e, 0x74, 0x06,
0x9b, 0x00, 0x29, 0x53, 0x33, 0x07, 0x72, 0x51, 0x2b, 0xa4, 0x35, 0x4f,
0x30, 0x70, 0x34, 0x7c, 0x2e, 0x30, 0x33, 0x77, 0x5a, 0x57, 0x3b, 0x34,
0x0a, 0x38, 0x83, 0x7f, 0x45, 0x37, 0x3d, 0x5c, 0x5d, 0x5e, 0x0a, 0x5b,
0x87, 0x44, 0x5e, 0xbf, 0x88, 0x11, 0x64, 0x40, 0xc8, 0x8d, 0x64, 0xcc,
0x8e, 0x8b, 0x47, 0x91, 0x15, 0x90, 0xd3, 0x16, 0x17, 0x64, 0x4a, 0x92,
0xd7, 0x17, 0x19, 0x64, 0x4c, 0xdc, 0x6a, 0x1a, 0x64, 0xe1, 0x19, 0x98,
0x1a, 0x21, 0x00, 0x3b
])};
tests.swf = {expect:{type:'flash', format:'SWF', mimeType:'application/x-shockwave-flash', width:16, height:32}, data: new Buffer([
0x46, 0x57, 0x53, 0x0a, 0x92, 0x00, 0x00, 0x00, 0x58, 0x00, 0x28, 0x00,
0x01, 0x40, 0x00, 0x00, 0x19, 0x01, 0x00, 0x44, 0x11, 0x08, 0x00, 0x00,
0x00, 0x43, 0x02, 0xff, 0xff, 0xff, 0xbf, 0x15, 0x0b, 0x00, 0x00, 0x00,
0x01, 0x00, 0x53, 0x63, 0x65, 0x6e, 0x65, 0x20, 0x31, 0x00, 0x00, 0x3f,
0x08, 0x51, 0x00, 0x00, 0x00, 0x01, 0x00, 0x58, 0x00, 0x28, 0x00, 0x01,
0x40, 0x00, 0x02, 0x10, 0xb3, 0x40, 0xee, 0x32, 0xbd, 0x00, 0x8e, 0x94,
0x78, 0x28, 0x00, 0x02, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
0x00, 0xff, 0x10, 0xb3, 0x43, 0x2e, 0x1a, 0xbd, 0x14, 0x8d, 0x94, 0x28,
0x28, 0x00, 0x02, 0x00, 0xff, 0x99, 0x00, 0xff, 0xff, 0xff, 0x98, 0x00,
0x00, 0x00, 0x20, 0x1d, 0x62, 0x81, 0x40, 0x4f, 0x2d, 0x80, 0x10, 0xdc,
0xb0, 0x72, 0xa8, 0x0d, 0xc5, 0x00, 0x4e, 0xe2, 0x83, 0x96, 0xc0, 0x6e,
0x58, 0x00, 0x86, 0x06, 0x06, 0x01, 0x00, 0x01, 0x00, 0x00, 0x40, 0x00,
0x00, 0x00
])};
tests['swf compressed'] = {expect:{type:'flash', format:'SWF', mimeType:'application/x-shockwave-flash', width:null, height:null}, data: new Buffer([
0x43, 0x57, 0x53, 0x0a, 0x92, 0x00, 0x00, 0x00, 0x78, 0x9c, 0x8b, 0x60,
0xd0, 0x60, 0x60, 0x74, 0x60, 0x60, 0x90, 0x64, 0x64, 0x70, 0x11, 0xe4,
0x60, 0x60, 0x60, 0x70, 0x66, 0xfa, 0xff, 0xff, 0xff, 0x7e, 0x51, 0x6e,
0x20, 0x93, 0x91, 0x21, 0x38, 0x39, 0x35, 0x2f, 0x55, 0xc1, 0x90, 0x81,
0xc1, 0x9e, 0x23, 0x10, 0x2c, 0x10, 0x01, 0x51, 0xce, 0x24, 0xb0, 0xd9,
0xe1, 0x9d, 0xd1, 0x5e, 0x86, 0xbe, 0x29, 0x15, 0x1a, 0x0c, 0x4c, 0x0c,
0xff, 0x41, 0x00, 0x28, 0xff, 0x5f, 0x60, 0xb3, 0xb3, 0x9e, 0xd4, 0x5e,
0x91, 0xde, 0x29, 0x1a, 0x60, 0xe1, 0x99, 0x20, 0x99, 0x19, 0x40, 0x09,
0x05, 0xd9, 0xa4, 0x46, 0x07, 0x7f, 0xdd, 0x06, 0x81, 0x3b, 0x1b, 0x8a,
0x56, 0xf0, 0x1e, 0x65, 0xf0, 0x7b, 0xd4, 0x3c, 0xed, 0x40, 0x5e, 0x04,
0x43, 0x1b, 0x1b, 0x1b, 0x23, 0xd0, 0x54, 0x06, 0xa0, 0x03, 0x18, 0x00,
0x77, 0xaf, 0x26, 0xda
])};