How to use ScriptIntrinsicYuvToRGB (converting byte[] yuv to byte[] rgba)

Question

I have byte[] yuvByteArray (540x360 image captured from Camera.PreviewCallback.onPreviewFrame method and dumped into assets/yuv.bin fi

Answer 1

Kotlin

        val rs = RenderScript.create(CONTEXT_HERE)
        val yuvToRgbIntrinsic = ScriptIntrinsicYuvToRGB.create(rs, Element.U8_4(rs))

        val yuvType = Type.Builder(rs, Element.U8(rs)).setX(byteArray.size)
        val inData = Allocation.createTyped(rs, yuvType.create(), Allocation.USAGE_SCRIPT)

        val rgbaType = Type.Builder(rs, Element.RGBA_8888(rs)).setX(width).setY(height)
        val outData = Allocation.createTyped(rs, rgbaType.create(), Allocation.USAGE_SCRIPT)

        inData.copyFrom(byteArray)

        yuvToRgbIntrinsic.setInput(inData)
        yuvToRgbIntrinsic.forEach(outData)

        val bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
        outData.copyTo(bitmap)