I have a long array of bytes, with numbers from 0 to 255, and I know it's an image, so how can I save it like a file? I have tried a lot of things, but not success.
The image is created but won't open because it's damaged.
File .js
function saveImage(filename, data){
//Data = [1,6,2,23,255,etc]
var wstream = fs.createWriteStream(ARTWORK_PATH+filename);
for (var i = 0; i < data.length; i++) {
wstream.write(data[i].toString('base64'));
}
wstream.end();
}
Why use base64 encoding? If your image data in the data parameter as binary, you can write it.
fs.writeFile(filename, data, "binary", function(){...});
data.join() before writing it but nothing. The bytes array comes from this plugin jsmediatags, they have the next method to do it but does not work to me. var base64String = ""; for (var i = 0; i < image.data.length; i++) { base64String += String.fromCharCode(image.data[i]); } var dataUrl = "data:" + image.format + ";base64," + window.btoa(base64String);
I solved it doing this!
It was as simple as use a buffer...
function saveImage(filename, data){
var myBuffer = new Buffer(data.length);
for (var i = 0; i < data.length; i++) {
myBuffer[i] = data[i];
}
fs.writeFile(ARTWORK_PATH+filename, myBuffer, function(err) {
if(err) {
console.log(err);
} else {
console.log("The file was saved!");
}
});
}
saveImage("image.jpg", [0,43,255,etc]);
