Package Exports

heic-d-code
heic-d-code/Heic-D-Code.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (heic-d-code) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Heic-D-Code

A wasm build of libheif whose only purpose is to decode .heif image or the first image of a .heic for use in a browser. Its size is half of other libraries like heic2any or heic-to.
Used in SnapFridge
Version: libde265 1.0.16, libheif 1.20.1, emscripten 4.0.12

Building instruction (from scratch)

Try to use Ninja

git clone --depth 1 https://github.com/msqr1/Heic-D-Code &&
cd Heic-D-Code &&
cmake -P Setup.cmake &&
source emsdk/emsdk_env.sh &&
mkdir build &&
cd build &&
emcmake cmake .. -DCMAKE_BUILD_TYPE=Release &&
cmake --build . --config Release -j$(nproc)

Usage

import initDecoder from "./Heic-D-Code.js";

const decoder = await initDecoder();
const canvas = document.createElement("canvas");
const context = canvas.getContext("2d");

try {
  const heic = await fetch("example.heic");
  const inData = await heic.bytes();
  const decodeOutput = decoder.decode(inData);
  canvas.width = width;
  canvas.height = height;
  ctx.putImageData(new ImageData(...decodeOutput), 0, 0);
} catch (e) {
  console.log(e);
}