topdown.py

#!/usr/bin/env python

# based on https://gist.github.com/celoyd/55b8876c02e968c599f8
# makes lots of big assumptions like 1280x720 video

import numpy as np
import cv2
from sys import argv

movf, outf = argv[1:]

viddy = cv2.VideoCapture(movf)
# width = viddy.get(3) # can you tell this API is by C programmers?
# height = viddy.get(4)

rows = np.empty((720, 1280, 3))

ct = 0

while ct < 720:
  print "%s/720" % (ct+1)
  okay, frame = viddy.read()
  if not okay: break
  rows[ct,...] = frame[ct,...]
  ct += 1
 
cv2.imwrite(outf, rows)