from PIL import Image
from subprocess import Popen, PIPE
import random
import time
import datetime

fps, duration, ColorDuration = 2, 30, 0.5
start = time.time()

duration += 1
width, height = 1080, 720

LastPercent = 0

p = Popen(['ffmpeg','-loglevel' ,'quiet', '-y', '-f', 'image2pipe', '-vcodec', 'mjpeg', '-r', str(fps), '-i', '-', '-vcodec', 'libx264', '-qscale', '5', '-r', str(fps), '-filter:v', "setpts=" + str((fps*ColorDuration)) + "*PTS",'-preset','veryfast', 'video.mp4'], stdin=PIPE)
for i in range(int(duration/ColorDuration)):
    Float = i/(duration/ColorDuration)
    r=random.randrange(255)
    g=random.randrange(255)
    b=random.randrange(255)
    im = Image.new("RGB", (width, height), (r,g,b))
    im.save(p.stdin, 'JPEG')
    percent = int(round((Float)*100, 0))
    if(LastPercent != percent):
        Time = time.time()-start
        TimeLeft = (((duration/ColorDuration)/i)*Time)-Time
        print(str(percent) + "%... Time left: " +time.strftime("%H hours, %M minutes and %S seconds!", time.gmtime(TimeLeft)))
        LastPercent = percent
p.stdin.close()
p.wait()
print("Time elapsed: "+ time.strftime("%H hours, %M minutes and %S seconds!", time.gmtime(time.time()-start)))