How to get the LPR correct snap shot using MIP SDK (as playback video may not correct to getFrameAt() API

MIP
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1

Hello,

My requirement is to get the exact snapshot of LPR image when LPT event is triggered using MIP SDK.

When LPR event trigger that time used to get sbapshot for recorded may not exist(as recorded video may take bit time compare to LPT live time)

Any idea for this issue. Please suggest to resolve this issue.

2

As recorded video and live video may have a different frame rate, it may be different - as LPR server is working on the live stream while you later ask for recorded frames. You should use the timestamp from the LPR event and ask for previous frame.​

3

Hi ,

Thanks for information. Yes i am using timestamp from the LPR event.

Can help me know how to get the previous frame. (If there is any C# sample in MIP SDK or API let me know)

4

Sorry, got API to get previous

JPEGVideoSource _jpegVideoSource = new JPEGVideoSource _jpegVideoSource.GetPrevious()

Correct me if i am wrong.

5

You can also use GetAtOrBefore( timestamp )

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