ffi_jpeg_encode

Fast JPEG encoding via FFI with SIMD optimizations for Android and iOS.

Usage

import 'package:ffi_jpeg_encode/ffi_jpeg_encode.dart';

final jpegBytes = encodeJpegToBytes(
  pixels,       // Uint8List of raw pixel data
  width,        // Image width
  height,       // Image height
  4,            // Components (1=grayscale, 3=RGB, 4=RGBA)
  quality: 95,
  subsampling: JpegSubsampling.auto_,
);

Subsampling Options

• JpegSubsampling.auto_ - 4:2:0 if quality <= 90, else 4:4:4
• JpegSubsampling.yuv444 - No subsampling (higher quality)
• JpegSubsampling.yuv420 - Subsampling (smaller files)

Credits

Adapted from flutter_jpeg_encode_ffi.

Based on jo_jpeg - Public Domain JPEG writer.