e2e-test.js

/* eslint-disable no-console */

var nodeFLIF = require('./index.js');

function runCommandSync (executable, args) {
    var exec = require('child_process').execSync;
    var executableAndArgs = executable + ' ' + args;
    var child = exec(executableAndArgs);
    return child.toString().trim();
}


// Test converting 1 flif to 1 png

var decodeParams = {
    input: './sample/cat.flif',
    output: './sample/decode-test.png',
    overwrite: true
};

nodeFLIF.decode(decodeParams, function (data) {
    console.log('Decode cat.flif -> decode-test.png finished');
    if (data) {
        console.log(data);
    }
});


// Test converting 1 png to 1 flif

var encodeParams = {
    input: './sample/cat.png',
    output: './sample/encode-test.flif',
    overwrite: true,
    async: false,
    // Pixel predictor for each plane: 'average', 'median gradient', 'median number', 'mixed', default is 'heuristically'
    guess: {
        y: 'heuristically',
        co: 'heuristically',
        cg: 'heuristically',
        alpha: 'heuristically',
        lookback: 'heuristically'
    }
};

console.log(nodeFLIF.encode(encodeParams));
console.log('Encode cat.png -> encode-test.flif finished.');


// Verify the above flif was created properly by decoding to png

var decodeParams2 = {
    input: './sample/encode-test.flif',
    output: './sample/decode-encode-test.png',
    overwrite: true
};

nodeFLIF.decode(decodeParams2, function (data) {
    console.log('Decode encode-test.flif -> decode-encode-test.png finished');
    if (data) {
        console.log(data);
    }
});


// Identify data in a flif

var catData = nodeFLIF.identify('./sample/cat.flif');
console.log(catData);
console.log('Identified cat.flif');


// Create an animated flif

var encodeAnimParams = {
    input: [
        './sample/catrun01.png',
        './sample/catrun02.png',
        './sample/catrun03.png',
        './sample/catrun04.png',
        './sample/catrun05.png',
        './sample/catrun06.png'
    ],
    output: './sample/encode-anim-test.flif',
    overwrite: true,
    frameDelay: [0]
};

nodeFLIF.encode(encodeAnimParams, function (data) {
    console.log('Encode catrun01-06.png -> encode-anim-test.flif finished.');
    if (data) {
        console.log(data);
    }
});

// Run Libflif
var open = require('open');
open('http://localhost:8000/node_modules/libflif.js/index.html');
runCommandSync('node', './node_modules/npm-free-server/dist/server.js');