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147 lines
3.5 KiB
Python
Executable File
147 lines
3.5 KiB
Python
Executable File
"""
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This script will test highgui's seek functionality
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for different video formats
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"""
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# import the necessary things for OpenCV and comparson routine
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import os
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#import python
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#from python.highgui import *
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#from python.cv import *
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import match
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from highgui import *
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from cv import *
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# path to videos and images we need
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PREFIX=os.path.join(os.environ["srcdir"],"../../opencv_extra/testdata/python/")
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# this is the folder with the videos and images
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# and name of output window
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IMAGES = PREFIX+"images/"
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VIDEOS = PREFIX+"videos/"
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show_frames=False
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# testing routine, seeks through file and compares read images with frames in frames.QCIF[]
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def seek_frame_ok(FILENAME,ERRORS):
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# create a video reader using the tiny videofile VIDEOS+FILENAME
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video=cvCreateFileCapture(VIDEOS+FILENAME)
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if video is None:
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# couldn't open video (FAIL)
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return 1
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if show_frames:
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cvNamedWindow("test", CV_WINDOW_AUTOSIZE)
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# skip 2 frames and read 3rd frame each until EOF and check if the read image is ok
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for k in [0,3,6,9,12,15,18,21,24,27]:
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cvSetCaptureProperty(video, CV_CAP_PROP_POS_FRAMES, k)
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# try to query frame
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image=cvQueryFrame(video)
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if image is None:
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# returned image is NULL (FAIL)
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return 1
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compresult = match.match(image,k,ERRORS[k])
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if not compresult:
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return 1
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if show_frames:
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cvShowImage("test",image)
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cvWaitKey(200)
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# same as above, just backwards...
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for k in [27,24,21,18,15,12,9,6,3,0]:
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cvSetCaptureProperty(video, CV_CAP_PROP_POS_FRAMES, k)
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# try to query frame
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image=cvQueryFrame(video)
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if image is None:
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# returned image is NULL (FAIL)
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return 1
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compresult = match.match(image,k,ERRORS[k])
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if not compresult:
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return 1
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if show_frames:
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cvShowImage("test",image)
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cvWaitKey(200)
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# ATTENTION: We do not release the video reader, window or any image.
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# This is bad manners, but Python and OpenCV don't care,
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# the whole memory segment will be freed on finish anyway...
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del video
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# everything is fine (PASS)
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return 0
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# testing routine, seeks through file and compares read images with frames in frames.QCIF[]
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def seek_time_ok(FILENAME,ERRORS):
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# create a video reader using the tiny videofile VIDEOS+FILENAME
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video=cvCreateFileCapture(VIDEOS+FILENAME)
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if video is None:
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# couldn't open video (FAIL)
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return 1
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if show_frames:
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cvNamedWindow("test", CV_WINDOW_AUTOSIZE)
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# skip 2 frames and read 3rd frame each until EOF and check if the read image is ok
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for k in [0,3,6,9,12,15,18,21,24,27]:
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cvSetCaptureProperty(video, CV_CAP_PROP_POS_MSEC, k*40)
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# try to query frame
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image=cvQueryFrame(video)
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if image is None:
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# returned image is NULL (FAIL)
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return 1
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compresult = match.match(image,k,ERRORS[k])
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if not compresult:
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return 1
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if show_frames:
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cvShowImage("test",image)
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cvWaitKey(200)
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# same as above, just backwards...
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for k in [27,24,21,18,15,12,9,6,3,0]:
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cvSetCaptureProperty(video, CV_CAP_PROP_POS_MSEC, k*40)
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# try to query frame
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image=cvQueryFrame(video)
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if image is None:
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# returned image is NULL (FAIL)
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return 1
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compresult = match.match(image,k,ERRORS[k])
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if not compresult:
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return 1
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if show_frames:
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cvShowImage("test",image)
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cvWaitKey(200)
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# ATTENTION: We do not release the video reader, window or any image.
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# This is bad manners, but Python and OpenCV don't care,
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# the whole memory segment will be freed on finish anyway...
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del video
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# everything is fine (PASS)
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return 0
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