how to save video which is in side a png frame in constraint layout in android

I am developing an app which requires a video or an image to be inserted inside a PNG image frame with one or multiple videos, the image part of the program is working well since I can just convert the View into a bitmap and save it, the issue I face comes when I have to save the image frame with a video inside it, I am able to pick up a video and set it inside the Video-view as well but when trying to save it, I am left helpless. Since there is no way to convert a view into a video.

My layout:

<androidx.constraintlayout.widget.ConstraintLayout
        android:id = "@+id/multiView"
        android:layout_width = "match_parent"
        android:layout_height = "0dp"
        android:layout_weight = "1" >
        
        <RelativeLayout
            android:id = "@+id/relativeLayout"
            android:layout_width = "match_parent"
            android:layout_height = "match_parent" />
        
        <ImageView
            android:id = "@+id/frame"
            android:layout_width = "match_parent"
            android:layout_height = "match_parent"
            android:scaleType = "fitXY"
            android:src = "@drawable/flowerpower"
            app:layout_constraintEnd_toEndOf = "parent"
            app:layout_constraintStart_toStartOf = "parent"
            app:layout_constraintTop_toTopOf = "parent" />
        
        
        <FrameLayout
            android:id = "@+id/stickerAdd"
            android:layout_width = "match_parent"
            android:layout_height = "match_parent" />
    
    </androidx.constraintlayout.widget.ConstraintLayout >

The constraintlayout is the parent view which has the other view like the PNG imageview and the stickerview, the images/video selected by the users are added dynamically to the position inside the blank space of a frame

Here is how I am saving the images with the frame :

            View view = multiView;
            view.setDrawingCacheEnabled ( true );
            Bitmap bitmap = Bitmap.createBitmap ( view.getDrawingCache ( ) );
            view.setDrawingCacheEnabled ( false );

            File localFile = new File ( path , filename );
            FileOutputStream outputStream = new FileOutputStream ( localFile );
            bitmap.compress ( Bitmap.CompressFormat.JPEG , 100 , outputStream );
            outputStream.flush ( );
            outputStream.close ( );

            MediaScannerConnection.scanFile ( this , new String[] { localFile.getAbsolutePath ( ) } ,
                    null , ( path1 , uri ) -> {
                    } );
            Toasty.custom ( MainActivity.this , "Image Saved" , null ,
                    getColor ( R.color.colorPrimary ) , getColor ( R.color.colorAccent ) , Toast.LENGTH_SHORT ,
                    false , true ).show ( );

Can anyone help me in how to save this but as a video