def open(self, path):
self.path = path
tree = ET.parse(path)
self.root = tree.getroot()
if len(self.root) == 0:
raise IOError('XML file is empty.')
if self.root.tag != "dataset":
raise IOError("Wrong input file, needs a dataset xml file.")
self._frames = {}
self._at = None
self._ratio = 1.0
for frm in self.root.findall('frameInformation'):
num = int(frm.find('frame').attrib['number'])
if self._at is None:
self._at = num
objects = {}
for obj in frm.findall('object'):
name = obj.attrib['name']
objects[name] = {}
objects[name]["box"] = obj.find('boxinfo').attrib
objects[name]["centre"] = obj.find('centroid').attrib
visible = obj.find("visibility")
if visible is not None:
objects[name]["visibility"] = visible.attrib
if 'lens' in obj.attrib:
objects[name]["lens"] = Theta.resolve(obj.attrib['lens'])
else:
objects[name]["lens"] = Theta.NonDual
self._frames[num] = objects
self.total = len(self._frames)
def status(self):
return "frame: {:0>2d}/{:d} buffer: {:0>2d}/{:0>2d}"\
.format(self.at(), self.total, self._buff_at+1, self._buff_max)
# testing script
if __name__ == "__main__":
import sys
# sanity checks
if len(sys.argv) < 3:
print "testing script aborted. Requries args"
print "usage: python2 buff_split_cap.py <video path> <left|right>"
exit(1)
# open reader, window, etc
side = Theta.resolve(sys.argv[2])
cap = BuffSplitCap(sys.argv[1], side=side, rotate=BuffSplitCap.r270)
window_name = "SplitCap test"
cv2.namedWindow(window_name)
# loop
while cap.isOpened():
cv2.imshow(window_name, cap.frame(side))
sys.stdout.write(cap.status() + "\r")
sys.stdout.flush()
# controls
key = cv2.waitKey(0)
if key == 0xFF & ord('q'):
break
return "frame: {:0>2d}/{:d} buffer: {:0>2d}/{:0>2d}"\
.format(self.at(), self.total, self._buff_at+1, self._buff_max)
# testing script
if __name__ == "__main__":
import sys
# sanity checks
if len(sys.argv) < 3:
print "testing script aborted. Requries args"
print "usage: python2 buff_split_cap.py <video path> <left|right>"
exit(1)
# open reader, window, etc
side = Theta.resolve(sys.argv[2])
cap = BuffSplitCap(sys.argv[1], side=side, rotate=BuffSplitCap.r270)
window_name = "SplitCap test"
cv2.namedWindow(window_name)
# loop
while cap.isOpened():
cv2.imshow(window_name, cap.frame(side))
sys.stdout.write(cap.status() + "\r")
sys.stdout.flush()
# controls
key = cv2.waitKey(0)
if key == 0xFF & ord('q'):
break