tree = utils.open_project(sys.argv)

if tree == None:

return

try:

os.mkdir(OUTPUT_DIR)

except OSError:

pass

movie = tree.getroot()

file_path = movie.attrib["path"]

#fps = float( movie.attrib["fps"] )

cap = cv.CreateFileCapture(file_path)

cv.QueryFrame(cap)

# skip frames in the beginning, if neccessary

start_frame = int( movie.attrib["start_frame"] )

for i in range(start_frame):

cv.QueryFrame(cap)

end_frame = int( movie.attrib["end_frame"] )

every_nth_frame = int( (end_frame - start_frame) / 100 )

print "every", every_nth_frame, "frames"

#print "=", every_nth_frame / fps, "sec"

frame = start_frame

counter = 1

while 1:

print counter

img = cv.QueryFrame(cap)

if not img or frame > end_frame:

break

img_small = cv.CreateImage((WIDTH, int( img.height * float(WIDTH)/img.width )), cv.IPL_DEPTH_8U, 3)

cv.Resize(img, img_small, cv.CV_INTER_CUBIC)

cv.SaveImage(os.path.join(OUTPUT_DIR,"still_%07d.jpg" % (frame)), img_small)

for i in range(every_nth_frame-1):

cv.GrabFrame(cap)

frame += every_nth_frame

counter += 1

#raw_input("- done -")