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index.js
executable file
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index.js
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const exec = require('child_process').execFile;
const cwebp = require('./lib')('cwebp');
const dwebp = require('./lib')('dwebp');
const gifwebp = require('./lib')('gif2webp');
const webpmux = require('./lib')('webpmux');
/******************************************************* cwebp *****************************************************/
module.exports.cwebp = function (input_image, output_image, option={}, callback=()=>{}) {
let query = option + ' ' + input_image + ' -o ' + output_image;
// console.log(query);
exec(cwebp, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
/******************************************************* dwebp *****************************************************/
module.exports.dwebp = function (input_image, output_image, option={}, callback=()=>{}) {
let query = input_image + ' ' + option + ' ' + output_image;
// console.log(query);
exec(dwebp, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
/******************************************************* gif2webp *****************************************************/
module.exports.gwebp = function (input_image, output_image, option={}, callback=()=>{}) {
let query = option + ' ' + input_image + ' -o ' + output_image;
exec(gifwebp, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
/******************************************************* webpmux *****************************************************/
module.exports.webpmux_add = function (input_image, output_image, icc_profile, option={}, callback=()=>{}) {
let query = '-set ' + option + ' ' + icc_profile + ' ' + input_image + ' -o ' + output_image;
exec(webpmux, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
module.exports.webpmux_extract = function (input_image, icc_profile, option={}, callback=()=>{}) {
let query = '-get ' + option + ' ' + input_image + ' -o ' + icc_profile;
exec(webpmux, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
module.exports.webpmux_strip = function (input_image, output_image, option={}, callback=()=>{}) {
let query = '-strip ' + option + ' ' + input_image + ' -o ' + output_image;
exec(webpmux, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
module.exports.webpmux_animate = function (input_images, output_image, loop, bgcolor, callback=()=>{}) {
let files = '-frame ' + input_images[0];
let j = input_images.length;
for (i = 1; i < j; i++) {
files = files + ' -frame ' + input_images[i];
// console.log(files);
}
let query = files + ' -loop ' + loop + ' -bgcolor ' + bgcolor + ' -o ' + output_image;
exec(webpmux, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};
module.exports.webpmux_getframe = function (input_image, output_image, frame_number, callback=()=>{}) {
let query = '-get frame ' + frame_number + ' ' + input_image + ' -o ' + output_image;
exec(webpmux, query.split(/\s+/), function (error, stdout, stderr){
if (error) {
callback(error);
} else {
callback(null, 'succeed');
}
});
};