GStreamer Python Playbin Custom Video-sink

playbin_custom_video-sink.py

import gi
gi.require_version('Gst', '1.0')
from gi.repository import GObject, Gst

Gst.init(None)

class Main:
    def __init__(self):
        self.pipeline = Gst.Pipeline.new("pipeline")
        self.bus = self.pipeline.get_bus()

        self.playbin = Gst.ElementFactory.make("playbin", "playbin")
        self.playbin.set_property("uri", "file:///foo/bar/file.mp4")
        self.pipeline.add(self.playbin)

        self.sink = Gst.Bin.new("sink")
        self.autovideosink = Gst.ElementFactory.make("autovideosink", "autovideosink")
        self.sink.add(self.autovideosink)

        self.pad = self.autovideosink.get_static_pad('sink')
        self.ghostpad = Gst.GhostPad.new('sink', self.pad)
        self.ghostpad.set_active(True)
        self.sink.add_pad(self.ghostpad)

        self.playbin.set_property("video-sink", self.sink)

    def run(self):
        self.pipeline.set_state(Gst.State.PLAYING)

        while True:
            try:
                message = self.bus.timed_pop(Gst.SECOND)

                if message == None:
                    pass
                elif message.type == Gst.MessageType.EOS:
                    break
                elif message.type == Gst.MessageType.ERROR:
                    break
            except KeyboardInterrupt:
                break

        self.pipeline.set_state(Gst.State.NULL)

start = Main()
start.run()

I need help to make a pipeline with multiple sinks and switch that pipeline in play state can switch between sinks as per my command