Timestamp synchronization between plugin and RTSP URL

Answered

Permanently deleted user

August 25, 2020 07:58

Here is our experiment:

• Dump compressed data received via Metadata SDK in plugin.

• At the same time, we stream from Nx server with RTSP URL and also dump received data.

Is the same content received from plugin and RTSP received at different timestamp (with about 0.3 second latency) expected?

Timestamp (from plugin): 1597739904.538495

Timestamp (from RTSP URL): 1597739904.839217

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  Andrey Terentyev

  • Network Optix team

  August 28, 2020 12:29

  Hello Tiffany,

  I'm sorry for the delayed response.
  Could you please provide with the sreenshot from RSTP stream with the timestamp 1597739904.538495

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  Andrey Terentyev

  • Network Optix team

  August 28, 2020 17:34 Edited

  Tiffany,

  Could you please describe in details (code examples, logic of your test etc.) what technically are you doing for getting timestamp from RSTP stream?
  What do you mean by RTSP URL?
  How you technically determine the timestamp 1597739904.839217 is exactly the moment of 1597739904.538495 and not the next one shifted by 0.3s?
  
  

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  Norman

  • Network Optix team

  September 10, 2020 12:38

  Hi @...,

  Is there still something we can do for you? 

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  Permanently deleted user

  September 11, 2020 01:28

  Hi Andrey and Norman,
  
  Thanks for your response. We had found root cause and way to resolve this issue afterwards.

  The RTSP timestamps now can almost match with those received from pushCompressedVideoFrame.

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