#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# Import required modules

from __future__ import print_function

import mlt7 as mlt

import time

import sys

# Start the mlt system

mlt.Factory().init()

# Establish a default (usually "dv_pal") profile

profile = mlt.Profile()

# Create the producer

p = mlt.Producer(profile, sys.argv[1])

if p.is_valid():

# Derive a profile based on the producer

profile.from_producer(p)

# Reload the producer using the derived profile

p = mlt.Producer(profile, sys.argv[1])

# Create the consumer

c = mlt.Consumer(profile, "sdl2")

if not c.is_valid():

print("Failed to open the sdl2 consumer")

sys.exit(1)

# Connect the producer to the consumer

c.connect(p)

# Start the consumer

c.start()

# Wait until the user stops the consumer

while not c.is_stopped():

time.sleep(1)

else:

# Diagnostics

print("Unable to open ", sys.argv[1])

sys.exit(1)