import time
import subprocess

from PIL import Image, ImageDraw, ImageFont


fnt = ImageFont.truetype('/usr/share/fonts/noto/NotoSans-Regular.ttf', 40)

my_ffmpeg_process = subprocess.Popen("ffmpeg -y -i pipe: -r 30 -pix_fmt yuv420p video.webm".split(), stdin=subprocess.PIPE)

for i in range(100):
    img = Image.new('RGB', (1280, 720), color=(73, 109, 137))

    d = ImageDraw.Draw(img)
    d.text((10, 10), str(i), font=fnt, fill=(255, 255, 0))

    img.save(my_ffmpeg_process.stdin, format='png')

    print(i)

for i in range(100):
    img = Image.new('RGB', (1280, 720), color=(73, 109, 137))

    d = ImageDraw.Draw(img)
    d.text((10, 10), str("Done with python!"), font=fnt, fill=(255, 255, 0))

    img.save(my_ffmpeg_process.stdin, format='png')

    print(i)

    #time.sleep(1)