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Today's Topics:
1. ip camera 50hz or 60hz (Harlan Daneker)
2. Re: ip camera 50hz or 60hz (tosiara)
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Message: 1
Date: Thu, 18 Feb 2021 17:33:09 -0500
From: Harlan Daneker <[email protected]>
To: Motion discussion list <[email protected]>
Subject: [Motion-user] ip camera 50hz or 60hz
Message-ID:
<cac1wkisrnyqgd5sjb7781g0g2pphjr_2zpd28hu+cfrhf9m...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I'm setting up four 5MP ip cameras using the rtsp stream. I'm in the United
States so I set the video format to 60hz. When streaming video through
motion the stream progressively lagged behind real time to the point you
would see what happened after it happened.
I started viewing the timestamp from the camera and motion at the same time
and as time went by they got farther and farther apart. Then I restarted
motion and it started over.
One of the cameras was not doing this and the only difference was I left
that camera at 50hz. I changed all the cameras to 50hz and the problem
seems to have been fixed.
I thought 50hz or 60hz was only for flicker. Does anybody know why this
would make any difference?
Thanks,
Harlan
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Message: 2
Date: Fri, 19 Feb 2021 14:21:42 +0200
From: tosiara <[email protected]>
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] ip camera 50hz or 60hz
Message-ID:
<cachtdwtwvsfnby2pnfmihaik+jblyciprddwxs6uo6jqs7n...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Hm, interesting
I'm also chasing an issue with one of my RTSP cameras where the stream
gets behind by 5-10 seconds in motion compared with the live view
after running for 2 weeks. Will try to see if those Hz settings affect
my case
On Fri, Feb 19, 2021 at 12:34 AM Harlan Daneker <[email protected]> wrote:
>
>
> I'm setting up four 5MP ip cameras using the rtsp stream. I'm in the United
> States so I set the video format to 60hz. When streaming video through motion
> the stream progressively lagged behind real time to the point you would see
> what happened after it happened.
>
> I started viewing the timestamp from the camera and motion at the same time
> and as time went by they got farther and farther apart. Then I restarted
> motion and it started over.
>
> One of the cameras was not doing this and the only difference was I left that
> camera at 50hz. I changed all the cameras to 50hz and the problem seems to
> have been fixed.
>
> I thought 50hz or 60hz was only for flicker. Does anybody know why this would
> make any difference?
>
> Thanks,
> Harlan
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> https://motion-project.github.io/
>
> Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
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End of Motion-user Digest, Vol 176, Issue 29
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