Video clip is generating from secondary stream mistakenly.

Answered

Makoto Ogata

December 10, 2021 02:27

Hi.

I found out that HTTP Streaming endpoint sometimes gives me a video clip from secondary stream.

Is there a way to avoid it?

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  Andrey Terentyev

  • Network Optix team

  December 14, 2021 16:02 Edited

  Hello Makoto,

  Could you please specify the exact URL of the API you are using?

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  Makoto Ogata

  December 15, 2021 00:06

  Hi Andrey Terentyev.

  I'm using the endpoint: http://<user>:<password>@<ipAddress>:<port>/media.mp4?pos=<pos>&endPos=<endPos>

  This endpoint usually gives me video clip from recording data(primary stream) however, when trying to retrieve video from a time zone close to the current time, it somtimes gives me video clip from secondary stream.

  Is there a way avoid it?

   

  Kind Regards,

  Makoto Ogata.

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  Andrey Terentyev

  • Network Optix team

  June 03, 2022 15:32

  Hi,

   it somtimes gives me video clip from secondary stream.

  The primary and secondary streams are formed with different paces. In this case, it most probably means that the primary stream had not yet been formed to be transferred and the secondary stream had been transferred instead.

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  Makoto Ogata

  June 06, 2022 01:24

  Hi Andrey Terentyev.

  Thank you for your response.

  I understand the situation.

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  Sergey Bystrov

  June 06, 2022 18:57

  is it possible that in this specific case the requested pos and endPos are such that there is no primary stream at the archive for those POSes? For example, the recording mode is HQ on motion and LQ always. 

  ?

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  Andrey Terentyev

  • Network Optix team

  June 08, 2022 16:32 Edited

  Sergey Bystrov ,

  Yes, what you're describing might be a possible root cause, as well.

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