Render Time (roughly graphs the render time of an image sequence)

ash_rendertime.py

"""
 
      ash_rendertime.py
      by me@aaronhildebrandt.com
   
      Graphs the render time of an image sequence
   
      Prerequisities:
              matplotlib
   
      Usage:
              python rendertime.py
 
"""

from os import listdir
import os.path, time, sys, Tkinter, tkFileDialog
import matplotlib.pyplot as plt

def highestValue(input_list):
	highest_value = 0
	for i in input_list:
		if i > highest_value:
			highest_value = i
	return highest_value

def average(input_list, search):
	output_list = []
	i = 0
	while i <= len(input_list):
		tally = 0
		count = 0
		j = -(int(search/2))
		while j <= (int(search/2)):
			try:
				tally += input_list[i+j]
				count += 1
			except: pass
			j += 1
		output_list.append(tally/count)
		i += 1
	return output_list

def main():
	# Get directory
	root = Tkinter.Tk()
	root.withdraw()
	image_path = tkFileDialog.askdirectory(parent=root, title='Select image sequence directory')
	root.destroy()
	onlyfiles = [ f for f in listdir(image_path) if os.path.isfile(os.path.join(image_path,f)) ]

	# Get time differences
	plotter = []
	i = 0
	previous_time = os.path.getmtime(image_path+'/'+onlyfiles[0])
	sequence_length = len(onlyfiles)
	onlyfiles.sort()
	for i in onlyfiles[1:]:
		difference = os.path.getmtime(image_path+'/'+i) - previous_time
		plotter.append(difference)
		previous_time = os.path.getmtime(image_path+'/'+i)

	# Average the result to get a more accurate graph when rendering across multiple machines
	plotter = average(plotter, 20)

	# Plot result
	plt.plot(plotter)
	plt.ylabel('Render time (seconds)')
	plt.xlabel('Frame')
	plt.title('Render time')
	plt.ylim([0,highestValue(plotter)])
	plt.xlim([0,sequence_length])
	plt.show()

main()