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I have been using IP camera's rtsp stream for video capturing. For capturing and display,I've found openvino-opencv is almost 10x faster than system python-opencv. BUT some abnormal things is going on which doesn't make sense to me:

Average time taken by openvino-opencv to read and display image is 0.01 sec approx.except every once in a while (approxly after every 250 frame) it takes 4.5 sec approx.

NOTES:

CAMERA MODEL: FLIR AX8
CAMERA FRAME_RATE = 30
Average time taken by system-python to read and display is 0.11
I tested with UCAM, both performs similar
I tested with static video, system-python runs faster.```
mmrbulbul
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1 Answers1

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It is possible that the IP camera has some sort of buffering to avoid a non-continuous streaming.

I would recommend to match your consuming frames speed to the IP camera framerate and that shouldn't be a problem anymore.

E. Soria
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  • i mean yes, there is a chance of buffering but since it is running smoothly on system python ,I am guessing we are facing some-other problems. May be dependency issues. – mmrbulbul Mar 19 '20 at 06:04