x264 & libyuv for Android

Preview frame scale & encoder to h264 using native libraries

• x264
• libyuv

Usage

override fun onPreviewFrame(data: ByteArray, camera: Camera) {
    val rotated = yuvUtils.nV21Rotate(
        data,
        widthPreview,
        heightPreview,
        Key.ROTATE_90,
        true
    )

    val rotatedNScaled = yuvUtils.nV21Scale(
        rotated,
        heightPreview,
        widthPreview,
        widthOut,
        heightOut,
        Key.SCALE_MODE_LINEAR,
    )
    
    h264Encoder.nV21ToH264(rotatedNScaled) { h264Frame ->
        // process h264Frame
    }
}

This example record a video h264 and save in

storage/emulated/0/Download/sample.h264

To reproduce this video you can use VLC for Android

Build x264 lib for Android ABIs (armeabi-v7a, arm64-v8a, x86, x86_64)

• configure your local NDK, HOST_TAG and TOOLCHAIN in build_x264.sh script

export NDK=/home/dani/Android/Sdk/ndk-bundle
export HOST_TAG=linux-x86_64
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG

• execute build_x264.sh - This script clone x264 repository and build different ABIs for android

# ./build_x264.sh

Build libyuv lib for Android ABIs (armeabi-v7a, arm64-v8a, x86, x86_64)

• Coming soon..

This project is based in: sszhangpengfei encoder and doggycoder AndroidLibyuv