DBell doorbell camera not working

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gravelpeake
Posts: 3
Joined: Sat Jul 10, 2021 11:07 am

DBell doorbell camera not working

Post by gravelpeake »

Hi, hoping for some help... anything would be greatly appreciated, I seem to be stymied in my troubleshooting. Thanks in advance.

Fresh install of Ubuntu 20.04+zm 1.32.3, SQL can read the db as zmuser, zoneminder service starts, apache/php appear to be configured ok. Get web console, but DBell doorbell camera will not work, says "not capturing." I see the below reason "Interrupted System Call." Also seems to maybe be a problem with zmc?

BTW this camera was working just a week or two ago on a raspberry pi with an older version of zm (don't remember what ver but I think around 1.31, but I can't check because that pi crashed and is offline now.)

Please let me know if you want any more information.

systemctl status
● zoneminder.service - ZoneMinder CCTV recording and surveillance system
Loaded: loaded (/lib/systemd/system/zoneminder.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2021-07-09 07:14:20 PDT; 21h ago
Docs: http://zoneminder.readthedocs.org/en/latest/
Process: 1086 ExecStart=/usr/bin/zmpkg.pl start (code=exited, status=0/SUCCESS)
Main PID: 1134 (zmdc.pl)
Tasks: 5 (limit: 9419)
Memory: 264.8M
CGroup: /system.slice/zoneminder.service
├─ 1134 /usr/bin/perl -wT /usr/bin/zmdc.pl startup
├─ 1422 /usr/bin/perl -wT /usr/bin/zmwatch.pl
├─ 1429 /usr/bin/perl -w /usr/bin/zmtelemetry.pl
├─ 1437 /usr/bin/perl -wT /usr/bin/zmstats.pl
└─100408 /usr/bin/zmc -m 1

Jul 10 04:18:53 *hostname removed* zmdc[1134]: WAR [Can't find process with command of 'zmc -m 1']
Jul 10 04:18:53 *hostname removed* zmdc[100408]: INF ['zmc -m 1' started at 21/07/10 04:18:53]
Jul 10 04:18:53 *hostname removed* zmdc[1134]: INF ['zmc -m 1' starting at 21/07/10 04:18:53, pid = 100408]
Jul 10 04:18:54 *hostname removed* zmc_m1[100408]: INF [zmc_m1] [Starting Capture version 1.32.3]
Jul 10 04:18:54 *hostname removed* zmc_m1[100408]: INF [zmc_m1] [Priming capture from rtsp://admin:****~@192.168.101.175:10554/tcp/av0_0]
Jul 10 04:19:03 *hostname removed* zmwatch[1422]: INF [Restarting capture daemon for Monitor-1, no image since startup. Startup time was 1625915934 - now 1625915943 > 5]
Jul 10 04:19:03 *hostname removed* zmdc[1134]: INF ['zmc -m 1' sending stop to pid 100408 at 21/07/10 04:19:03]
Jul 10 04:19:04 *hostname removed* zmc_m1[100408]: INF [zmc_m1] [Got signal 15 (Terminated), exiting]
Jul 10 04:19:04 *hostname removed* zmc_m1[100408]: ERR [zmc_m1] [Unable to open input rtsp://admin:****~@192.168.101.175:10554/tcp/av0_0 due to: Interrupted system call]
Jul 10 04:19:04 *hostname* zmc_m1[100408]: ERR [zmc_m1] [Failed to prime capture of initial monitor]


ZM Logs:

2021-07-10 04:11:46 zmwatch 1422 ERR Memory map file '/dev/shm/zm.mmap.1' does not exist. zmc might not be running. zmwatch.pl
2021-07-10 04:11:46 zmwatch 1422 INF Restarting capture daemon for Monitor-1, shared data not valid zmwatch.pl
2021-07-10 04:11:46 zmdc 1134 WAR Can't find process with command of 'zmc -m 1' zmdc.pl
2021-07-10 04:11:46 zmdc 1134 INF 'zmc -m 1' starting at 21/07/10 04:11:46, pid = 99843 zmdc.pl
2021-07-10 04:11:46 zmdc 99843 INF 'zmc -m 1' started at 21/07/10 04:11:46 zmdc.pl
2021-07-10 04:11:46 zmc_m1 99843 INF Starting Capture version 1.32.3 zmc.cpp 223
2021-07-10 04:11:46 zmc_m1 99843 INF Priming capture from rtsp://admin:****~@192.168.101.175:10554/tcp/av0_0 zm_ffmpeg_camera.cpp 163
2021-07-10 04:11:36 zmdc 1134 INF Command 'zmc -m 1' removed from pending list at 21/07/10 04:11:36 zmdc.pl
2021-07-10 04:11:36 zmdc 1134 INF 'zmc -m 1' exited normally zmdc.pl
2021-07-10 04:11:35 zmwatch 1422 INF Restarting capture daemon for Monitor-1, no image since startup. Startup time was 1625915475 - now 1625915495 > 5 zmwatch.pl
2021-07-10 04:11:25 zmwatch 1422 INF Restarting capture daemon for Monitor-1, no image since startup. Startup time was 1625915475 - now 1625915485 > 5 zmwatch.pl
2021-07-10 04:11:25 zmdc 1134 INF 'zmc -m 1' sending stop to pid 99804 at 21/07/10 04:11:25 zmdc.pl
2021-07-10 04:11:25 zmc_m1 99804 INF Got signal 15 (Terminated), exiting zm_signal.cpp 40
2021-07-10 04:11:25 zmc_m1 99804 ERR Unable to open input rtsp://admin:****~@192.168.101.175:10554/tcp/av0_0 due to: Interrupted system call zm_ffmpeg_camera.cpp 357
2021-07-10 04:11:25 zmc_m1 99804 ERR Failed to prime capture of initial monitor zmc.cpp 253
2021-07-10 04:11:15 zmc_m1 99804 INF Priming capture from rtsp://admin:****~@192.168.101.175:10554/tcp/av0_0 zm_ffmpeg_camera.cpp 163
2021-07-10 04:11:15 zmc_m1 99804 INF Starting Capture version 1.32.3 zmc.cpp 223
2021-07-10 04:11:15 zmdc 1134 INF 'zmc -m 1' starting at 21/07/10 04:11:15, pid = 99804 zmdc.pl
2021-07-10 04:11:15 zmdc 99804 INF 'zmc -m 1' started at 21/07/10 04:11:15 zmdc.pl
2021-07-10 04:11:15 zmdc 1134 WAR Can't find process with command of 'zmc -m 1' zmdc.pl
2021-07-10 04:11:15 zmwatch 1422 INF Restarting capture daemon for Monitor-1, shared data not valid zmwatch.pl
2021-07-10 04:11:15 zmwatch 1422 ERR Memory map file '/dev/shm/zm.mmap.1' does not exist. zmc might not be running. zmwatch.pl
2021-07-10 04:11:05 zmwatch 1422 INF Restarting capture daemon for Monitor-1, no image since startup. Startup time was 1625915445 - now 1625915465 > 5 zmwatch.pl
2021-07-10 04:11:05 zmdc 1134 INF 'zmc -m 1' exited normally zmdc.pl
2021-07-10 04:11:05 zmdc 1134 INF Command 'zmc -m 1' removed from pending list at 21/07/10 04:11:05 zmdc.pl
Magic919
Posts: 1381
Joined: Wed Sep 18, 2013 6:56 am

Re: DBell doorbell camera not working

Post by Magic919 »

Reads like it gets nothing from the camera. Test using ffmpeg from the command line.
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gravelpeake
Posts: 3
Joined: Sat Jul 10, 2021 11:07 am

Re: DBell doorbell camera not working

Post by gravelpeake »

Would an equivalent to ffmpeg testing be using VLC to try to open the stream?
If so, I can't open the stream, it errors with: "unable to open the MRL." I guess that would point to the camera itself then?
Magic919
Posts: 1381
Joined: Wed Sep 18, 2013 6:56 am

Re: DBell doorbell camera not working

Post by Magic919 »

It's another way of proving the video cannot be obtained from the camera. It could be the camera, or the URL etc for the camera is wrong.
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gravelpeake
Posts: 3
Joined: Sat Jul 10, 2021 11:07 am

Re: DBell doorbell camera not working

Post by gravelpeake »

Thanks for the assist!
Looks like it is the camera, since that was the correct URL I had used last time that it was working. Just strange it would go out same time my pi crashed. Coincidental I suppose.
User avatar
iconnor
Posts: 2879
Joined: Fri Oct 29, 2010 1:43 am
Location: Toronto
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Re: DBell doorbell camera not working

Post by iconnor »

You need to use TCP mode IIRC. My dbell is disconnected at the moment, but I recall that UDP doesn't work with them.
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