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"""
This script will test HighGUI's cvGetCaptureProperty functionality
for correct returnvalues of width and height information for different video formats
"""
# import the necessary things for OpenCV and comparson routine
import os
from cv import *
from highgui import *
#import python
#from python.highgui import *
# path to images and videos we need
PREFIX =os.path.join(os.environ["srcdir"],"../../opencv_extra/testdata/python/")
# this is the folder with the videos and images
# and name of output window
IMAGES = PREFIX+"images/"
VIDEOS = PREFIX+"videos/"
# testing routine, seeks through file and compares read images with frames in COMPARISON
def size_ok(FILENAME):
# create a video reader using the tiny videofile VIDEOS+FILENAME
video=cvCreateFileCapture(VIDEOS+FILENAME)
if video is None:
# couldn't open video (FAIL)
return 1
# get width and height information via HighGUI's cvGetCaptureProperty function
w=cvGetCaptureProperty(video,CV_CAP_PROP_FRAME_WIDTH)
h=cvGetCaptureProperty(video,CV_CAP_PROP_FRAME_HEIGHT)
# get an image to compare
image=cvQueryFrame(video)
if image is None:
return 1
image = cvCloneImage (image)
if (w!=image.width) or (h!=image.height):
# dimensions don't match parameters (FAIL)
return 1
del video
del image
# everything is fine (PASS)
return 0
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