AVIF/HEIF Coder for Android 24+

Library provides simple interface to decode or encode ( create ) AVIF and HEIF images for Android Very fast and convinient to use AVIF in android apps with api version 24+. Based on libheif, libde265, libx265, libyuv, libaom and libdav1d

Correctly handles ICC, and color profiles and HDR images. Fully supports HDR images, 10, 12 bit. Preprocess image in tile to increase speed. Extremly fast in decoding large HDR images or just large images. The most featured AVIF, HEIF library in android. Supported decoding in all necessary pixel formats in Android and avoids android decoding bugs.

Image processing speeded up by libhwy

Usage example

// May decode AVIF(AV1) and HEIC (HEVC) images, HDR images supported
val bitmap: Bitmap = HeifCoder().decode(buffer) // Decode avif from ByteArray
val bytes: ByteArray = HeifCoder().encodeAvif(decodedBitmap) // Encode Bitmap to AVIF
val bytes = HeifCoder().encodeHeic(bitmap) // Encode Bitmap to HEIC / Supports HDR in RGBA_F16, RGBA_1010102, HARDWARE
// Check if image is valid AVIF(AV1) image
val isAvif = HeifCoder().isAvif(byteArray)
// Check if image is valid HEIF(HEVC) image
val isHeif = HeifCoder().isHeif(byteArray)
// Check if image is AVIF or HEIF, just supported one
val isImageSupported = HeifCoder().isSupportedImage(byteArray)
// Get image size ( this call never throw)
val imageSize: Size? = HeifCoder().getSize(byteArray)
// Decode AVIF or HEIF in sample size if needed
val bitmap: Bitmap = decodeSampled(byteArray, scaledWidth, scaledHeight)

Add Jitpack repository

repositories {
    maven { url "https://jitpack.io" }
}

implementation 'com.github.awxkee:avif-coder:1.7.5' // or any version above picker from release tags

// Glide avif plugin if you need one
implementation 'com.github.awxkee:avif-coder-glide:1.7.5' // or any version above picker from release tags

// Coil avif plugin if you need one
implementation 'com.github.awxkee:avif-coder-coil:1.7.5' // or any version above picker from release tags

Also supports coil integration

Just add to image loader heif decoder factory and use it as image loader in coil

val imageLoader = ImageLoader.Builder(context)
    .components {
        add(HeifDecoder.Factory(context))
    }
    .build()

Self-build

Requirements

libdav1d:

• ndk
• meson
• ninja
• cmake
• nasm

libyuv, de265, x265, aom, sharpyuv(webp):

• ndk
• ninja
• cmake
• nasm
• yasm

libheif:

• ndk
• ninja
• cmake
• and all built libraries above

If you wish to build by yourself you may use ready build_aom.sh script, build_dav1d.sh, build_x265.sh, build_de265.sh, build_yuv.sh, build_heif.sh or you may use build_all.sh

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_aom.sh

Disclaimer

AVIF

AVIF is the next step in image optimization based on the AV1 video codec. It is standardized by the Alliance for Open Media. AVIF offers more compression gains than other image formats such as JPEG and WebP. Our and other studies have shown that, depending on the content, encoding settings, and quality target, you can save up to 50% versus JPEG or 20% versus WebP images. The advanced image encoding feature of AVIF brings codec and container support for HDR and wide color gamut images, film grain synthesis, and progressive decoding. AVIF support has improved significantly since Chrome M85 implemented AVIF support last summer.