Trying to save couchbase Blob having a JPG file.

TestCouchbaseActivity.kt

package com.rapidbizapps.sample

import android.graphics.BitmapFactory
import android.media.ThumbnailUtils
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import kotlinx.android.synthetic.main.activity_test_couchbase.*
import android.graphics.Bitmap
import com.couchbase.lite.Blob
import com.couchbase.lite.MutableDocument
import com.rapidbizapps.data_engine.couchbase.CbHelper
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream


class TestCouchbaseActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_test_couchbase)
        addImageToCouchbase()
    }

    fun addImageToCouchbase() {

        val db = CbHelper.getInstance(this).db

        try {

//            val inStream = assets.open("samri.jpg")
            val inStream = assets.open("splash.png")
            val imageBitmap = BitmapFactory.decodeStream(inStream)
            val thumbnail = ThumbnailUtils.extractThumbnail(imageBitmap, 150, 150)
            inStream.close()

            //  Displaying all sorts of images here
//            ivPicture.setImageBitmap(thumbnail)

            // save as attachment to Document .
            val out = ByteArrayOutputStream()
            thumbnail.compress(Bitmap.CompressFormat.JPEG, 50, out)
            thumbnail.compress(Bitmap.CompressFormat.PNG, 50, out)
            val inp = ByteArrayInputStream(out.toByteArray())

//            val blob = Blob("image/jpg", inp)
            val blob = Blob("image/png", inp)

            val inDocument = MutableDocument()
            inDocument.setBlob("image", blob)

            val outDocument = db.save(inDocument)

            val outBlob = outDocument.getBlob("image")

            if(outBlob.content == null) {
                Log.d(TAG, "content is null")
            }

            val outBitmap = BitmapFactory.decodeStream(outBlob.contentStream)
            ivPicture.setImageBitmap(outBitmap)


        }
        catch (e : Exception) {
            Log.e(TAG,"Error while loading image. ",e)
        }

    }


    companion object {

        val TAG = TestCouchbaseActivity::class.java.simpleName
    }
}