import GIF from "omggif";
import { GifUtil, GifFrame, BitmapImage, GifCodec } from "gifwrap";
import { Format } from "@jimp/types";
export interface JPEGOptions {
quality?: number;
}
export default function gif() {
return {
mime: "image/gif",
encode: async (bitmap) => {
const gif = new BitmapImage(bitmap);
GifUtil.quantizeDekker(gif, 256);
const newFrame = new GifFrame(bitmap);
const gifCodec = new GifCodec();
const newGif = await gifCodec.encodeGif([newFrame], {});
return newGif.buffer;
},
decode: (data) => {
const gifObj = new GIF.GifReader(data);
const gifData = Buffer.alloc(gifObj.width * gifObj.height * 4);
gifObj.decodeAndBlitFrameRGBA(0, gifData);
return {
data: gifData,
width: gifObj.width,
height: gifObj.height,
};
},
} satisfies Format<"image/gif">;
}
