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Today's Topics:
1. Re: Controlling active channels? (MrDave)
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Message: 1
Date: Thu, 6 Sep 2018 20:08:59 -0600
From: MrDave <motionmrd...@gmail.com>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] Controlling active channels?
Message-ID: <a5ebeaf0-5c8a-a249-30bf-8e2a28cba...@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
round-robin will occur when you specify the same video device for
multiple camera threads in Motion.? The only way to disable it is to use
a different device (e.g. /dev/video0 and /dev/video1).? If all the
cameras are using /dev/video0 but with different channels for each
camera, Motion has to go into round-robin because only one process can
open the device at one time.
I do not have one of these devices to test but you could try setting up
a v4l2loopback
(https://motion-project.github.io/motion_config.html#OptDetail_Pipe) for
each of the cameras.? This of course just may shift the round-robin
"work"/"slowdown" out of the Motion application and into the?
v4l2loopback application and not solve the root problem.? The best
option of course would be if the camera card was recognized by the
kernel and presented itself as either 4 or 16 different /dev/video devices.
On 9/5/2018 9:04 PM, Richard Thomas wrote:
> So I have a 4-channel BT878 card (single chip). I only have one camera
> on it but I am only able to max out at around 3 frames per second. So
> I think the round-robin is occurring. Unfortunately, I can't seem to
> find a way to disable this. Can anyone tell me how? This is not so
> important for this card but I want to move to a 4 chip card and the
> only ones I can find are 16 channel so I want to make sure that I can
> run them all at full speed so would like to make sure I can disable
> the round robin feature for those.
>
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