Supports version from Android 5.0 (API Level 21)

The JPEG XL Codec for Android is a versatile and efficient library that allows you to decode and encode JPEG XL (JXL) images within your Android applications. With this library, you can seamlessly integrate support for the next-generation image format, providing both decoding and encoding capabilities to enhance your app's image handling capabilities. Simple and convenient interface for kotlin

ICC profiles supported. Supports animations as well

Usage example

// May decode JXL images, supported RGBA_8888, RGBA_F16, RGBA_1010102, RGB_565, HARDWARE
val bitmap: Bitmap = JxlCoder.decode(buffer) // Decode JPEG XL from ByteArray
// If you need a sample
val bitmap: Bitmap =
    JxlCoder.decodeSampled(buffer, width, height) // Decode JPEG XL from ByteArray with given size
val bytes: ByteArray = JxlCoder.encode(decodedBitmap) // Encode Bitmap to JPEG XL

Convenience for conversion

Construct from JPEG

// Construct JPEG XL from JPEG data
 val jxlData = JxlCoder.transcode(jpegByteArray)

Animation Decoding

val animatedImage = JxlAnimatedImage(jxlBuffer) // Creates an animated image
val frames = numberOfFrames
val drawable =
    animatedImage.animatedDrawable // if you just wish get an animated drawable NOT OPTIMIZED It will just render all bitmaps into one drawable
for (frame in 0 until frames) {
    val frameDuration = getFrameDuration(frame)
    val frameBitmap = getFrame(frame)
    // Do something with frame and duration
}

Animation Encoding

val encoder = JxlAnimatedEncoder(
    width = width,
    height = width,
)
encoder.addFrame(firstFrame, duration = 2000) // Duration in ms
encoder.addFrame(secondFrame, duration = 2000) // Duration in ms
val compressedBuffer: ByteArray = encoder.encode() // Do something with buffer

Add to project

implementation 'io.github.awxkee:jxl-coder:2.2.0' // or any version above picker from release tags

// Glide JPEG XL plugin if you need one
implementation 'io.github.awxkee:jxl-coder-glide:2.2.0' // or any version above picker from release tags

// Coil JPEG XL plugin if you need one
implementation 'io.github.awxkee:jxl-coder-coil:2.2.0' // or any version above picker from release tags

Self-build

Requirements

libjxl:

• ndk
• ninja
• cmake
• nasm

All commands are require the NDK path set by NDK_PATH environment variable

• If you wish to build for x86 you have to add a $INCLUDE_X86 environment variable for example:*

NDK_PATH=/path/to/ndk INCLUDE_X86=yes bash build_jxl.sh

Copyrights

This library created with jixel and 'jxl-rs' which belongs to JPEG XL Project Authors which licensed with BSD-3 license