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Today's Topics:
1. Re: Flashing Video (alexandre gill)
2. Re: Gray glitching but only one of of two identical cameras
(Barry Martin)
3. Re: Gray glitching but only one of of two identical cameras
(Barry Martin)
----------------------------------------------------------------------
Message: 1
Date: Wed, 26 May 2021 10:31:40 -0400
From: alexandre gill <a...@tkwx.us>
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Flashing Video
Message-ID: <yk5bzetxptsg0...@tkwx.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Tried with lowering the framerate and also raising the threshold to get
around my 12 year old webcam outputting flashing (darkly/lightly exposed
video output) and falsely triggering motion recording.
I relented and purchased some $8 Dorhea OV5647 RPi camera module. Much
better quality and no false positives since!
On Thu, May 13, 2021 at 12:22:07PM -0400, alexandre gill wrote:
>Hi List,
>
>
>In the spirit of the psychedelic post, recently used Motion for a
>quick and dirty setup -- RPi4 with a Logitech Quickcam Pro for
>Notebooks (pre-2010). Has been working doing the job just fine, but
>checking it remotely, after some time I'm noticing ~40MB files...
>
>I have a wireless relay and thought maybe it was bouncing the lights
>bouncing on/off, but no -- I don't have a strobetron. And looking at
>some older posts ("Strange brightness during recording"), cheap USB
>cameras do this, which is understanable.
>
>So, I'm fishing for a magic parameter which might cool this situation
>down.
>
>
>TIA, Alex
>
>A sample if you're interested:
>http://tkwx.us/misc_files/0-12-2021-05-13-09-58-44.mkv
>
>
>
>_______________________________________________
>Motion-user mailing list
>Motion-user@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/motion-user
>https://motion-project.github.io/
>
>Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
------------------------------
Message: 2
Date: Wed, 26 May 2021 10:29:56 -0500
From: Barry Martin <barry3mar...@gmail.com>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] Gray glitching but only one of of two
identical cameras
Message-ID: <59bb46d4-8521-16bc-524d-97039d776...@gmail.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Hi Roger!
As long as the white tape is on the front insulation facing the sun
should help.?? Just not on the back.
The cameras are encased in a solid black case, so no vent holes. Good
news: no buggies can get inside; bad news, potentially lousy heat
transfer. One also should remember heat can transfer both directions: it
can get very hot in the Storage Area. I think so far the highest has
been in the low 90?s (Fahrenheit). (It?ll get a lot warmer.)
Yesterday morning posted had swapped the wall wart which seemed to have
resolved most of the glitching ? yeah! Worked fine all day. ...Evening
went down to watch TV, couple hours later come back up: monitor can?t
find the cameras. Reset motion (sudo service motion reset) ? reconnects.
(I did the reset via VNC, so the Pi was responding.)
This morning wander into the Computer Room ? no video again. Do the
reset, working again. Checked the recordings, my guess is the problem
occurred just after 4 a.m.: both camera?s last videos were about the
same time and recording a car going by then the time display freezes but
the video continues for several more seconds. No idea if that is a clue
to anything.
It?s dark out, it?s cooled down; no cronjobs at that hour.
And no, don?t have separate logging enabled ? yet!
Extracted from dmesg:
[71659.041941] v3d fec00000.v3d: MMU error from client L2T (0) at
0x26c1000, pte invalid
Huh? Googled ?pte error?, found this
https://www.raspberrypi.org/forums/viewtopic.php?t=277917 ? mostly
seemed to be the 64-bit version ? I?m running 32-bit as last I checked
the 64-bit wasn?t quite ready. ...The Nov 04, 2020 10:31 am
<https://www.raspberrypi.org/forums/viewtopic.php?p=1754042&sid=3847dd7c938edf9ac23f6e0e160a4c6e#p1754042>
post mentions video and usb and then seemed to ramble worse than I can.
<g> ...Well that thread seemed to be mostly me too?s and no conclusion.
...I haven?t a clue what a ?pte? is, though scanning through other
articles appears can cause a kernel panic and that?s what caused Motion
to go off-line. ...Make note: there?s a Motion command to do a command
on camera_loss (so do the reset).
My use case for the cam would be the 5-50mm lens via a window to the end
of my driveway, about 210 ft, outside of the distance for any IR leds.?
I have IR security cams for close in but 10x security cams aren't cheap
and still don't have that great of low light.
I know the logitech cams I put in the window worked fine in full sun,
but I am betting logitech did a complete design.? The cams in that usage
did seem to slowly get less sharp.
The cameras I have played with here:
SV-USBFHD06H-BL36 SVPRO, appears to be same as ELP Front yard x2
ELP-USB100W03M-BL36 Prior set ? had insufficient Lux for above
ELP-USB130W01MT-BL21 Cars
A few years ago started with Creative iLive ? had ?in stock? so good to
see what the utility did (MotionEyeOS back then ? good utility based on
Motion, just I seemed to have problems with MotionEye trying to do too
much and for me going to Motion resolved the problems). Those cameras
are lousy at low-light conditions. <g>
The SV and ELP cameras have a clear display throughout near to far: the
grids on the window are even pretty clear and the window is probably 2
inches from the lens. Closest to the house is probably 15 feet. One
camera barely shows the neighbour?s house across the street, so around 125?.
Night vision will be a problem. I will eventually crawl back in and
install an IR lamp. As you said, won?t go that distance. Could you do
something with solar-powered IR lamps semi-hidden on a fence or pole or
something?
I haven?t tried but according to
https://www.activecountermeasures.com/making-a-solar-powered-raspberry-pi/
(February, 2020) recommends Anker PowerCore battery packs ? several
options and updates. Need a solar cell; I have a Vitcoco 29W charger ?
foldable, regulated USB (2 ports) and 12v. Used this to recharge some
UPS batteries (12V, 9AH) so I could watch TV when lost power for a week
due to the derecho (wind storm) that went through Iowa last August. 12v
TV drawing ~25W, batteries lasted three to four hours.
Barry
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Message: 3
Date: Wed, 26 May 2021 10:52:50 -0500
From: Barry Martin <barry3mar...@gmail.com>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] Gray glitching but only one of of two
identical cameras
Message-ID: <ca03f8d0-c55a-94f5-551b-6ec79cd0d...@gmail.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
I noted this post from Alexandre Gill in the ?Flashing Video? thread:
> Tried with lowering the framerate and also raising the threshold to
> get around my 12 year old webcam outputting flashing (darkly/lightly
> exposed video output) and falsely triggering motion recording.
>
> I relented and purchased some $8 Dorhea OV5647 RPi camera module. Much
> better quality and no false positives since!
With regards to my issue I have the framerate set to 10 in motion.conf
(default = 15), so should work to both cameras, right? I put the
variable %fps in the camera name field to monitor. Right now one camera
is displaying 3, the other 10. The one with ?10? might be because of
detecting shadows. Both cameras will change fps , though I have noted 11
and 12. Is ?framerate? and ?fps? the same?? (I am also restricting my
comments to since yesterday morning when I swapped out the wall wart
which seems to have corrected most of my glitching).
The other thing is the use of the RPi camera module. Probably good, just
can?t be used here ? unless someone can suggest a work-around. The Pi
itself, or at least the 3, maybe 3B, I used doesn?t like heat. I had the
Pi hanging in the Storage Area, everything was fine until Summer and it
got to 120-130?F - maybe more ? in there! I think the polyfuses
liquefied and opened! Cooled and worked fine until the next heat session.
Barry
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