mirror of
https://github.com/opencv/opencv.git
synced 2024-12-11 22:59:16 +08:00
48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
|
#! /usr/bin/env python
|
||
|
|
"""
|
||
|
|
This script will test highgui's cvQueryFrame() function
|
||
|
|
"""
|
||
|
|
|
||
|
|
# name of this test and it's requirements
|
||
|
|
TESTNAME = "cvQueryFrame"
|
||
|
|
REQUIRED = ["cvGrabFrame","cvRetrieveFrame"]
|
||
|
|
|
||
|
|
|
||
|
|
# needed for sys.exit(int) and .works file handling
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import works
|
||
|
|
|
||
|
|
# path to imagefiles we need
|
||
|
|
PREFIX=os.path.join(os.environ["srcdir"],"../../opencv_extra/testdata/python/videos/")
|
||
|
|
|
||
|
|
# check requirements and delete old flag file, if it exists
|
||
|
|
if not works.check_files(REQUIRED,TESTNAME):
|
||
|
|
sys.exit(77)
|
||
|
|
|
||
|
|
# import the necessary things for OpenCV
|
||
|
|
from highgui import *
|
||
|
|
from cv import *
|
||
|
|
|
||
|
|
|
||
|
|
# create a video reader using the tiny video 'uncompressed.avi'
|
||
|
|
video = cvCreateFileCapture(PREFIX+"uncompressed.avi")
|
||
|
|
|
||
|
|
# call cvQueryFrame for 30 frames and check if the returned image is ok
|
||
|
|
for k in range(0,30):
|
||
|
|
image = cvQueryFrame( video )
|
||
|
|
|
||
|
|
if image is None:
|
||
|
|
# returned image is not a correct IplImage (pointer),
|
||
|
|
# so return an error code
|
||
|
|
sys.exit(77)
|
||
|
|
|
||
|
|
# ATTENTION: We do not release the video reader, window or any image.
|
||
|
|
# This is bad manners, but Python and OpenCV don't care...
|
||
|
|
|
||
|
|
# create flag file for sollowing tests
|
||
|
|
works.set_file(TESTNAME)
|
||
|
|
|
||
|
|
# return 0 ('PASS')
|
||
|
|
sys.exit(0)
|