Re: [Motion-user] latest git fails to open netcam

[Jiapau <ji...@ya...>]

v4l2_device_open: Failed to open video device /dev/video0: No such file
or directory

Did you try listing the webcams and see if the video0 is the correct one?

On Fri, Jul 30, 2021, 4:43 AM S Andreason <san...@gm...> wrote:

> I updated from git and recompiled fresh
>   motion Version 4.3.1+git20210728-ea2b2a9
> Now it fails to open the netcam as given in motion.conf.
> The motion.log is empty, even at log_level 9
> The only list of errors I can see is from
> $ sudo service motion status
> ● motion.service - LSB: Start Motion detection
>     Loaded: loaded (/etc/init.d/motion; generated)
>     Active: active (running) since Thu 2021-07-29 13:13:33 PDT; 14s ago
>       Docs: man:systemd-sysv-generator(8)
>    Process: 15297 ExecStart=/etc/init.d/motion start (code=exited,
> status=0/SUCCESS)
>      Tasks: 2 (limit: 4915)
>     CGroup: /system.slice/motion.service
>             └─15303 /usr/bin/motion
>
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [0:motion] [NTC] [ALL] main:
> Motion thread 1 restart
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [0:motion] [NTC] [ALL]
> motion_start_thread: Camera ID: 0 Camera Name: (null) Device: /dev/video0
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [NTC] [ALL]
> motion_init: Camera 0 started: motion detection Enabled
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [NTC] [VID]
> vid_start: Opening V4L2 device
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [NTC] [VID]
> v4l2_device_open: Using videodevice /dev/video0 and input -1
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [ALR] [VID]
> v4l2_device_open: Failed to open video device /dev/video0: No such file
> or directory
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [ERR] [VID]
> vid_start: V4L2 device failed to open
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [WRN] [ALL]
> motion_init: Could not fetch initial image from camera
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [WRN] [ALL]
> motion_init: Motion continues using width and height from config file(s)
> Jul 29 13:13:41 raspberrypi3 motion[15303]: [1:ml1] [NTC] [ALL]
> image_ring_resize: Resizing pre_capture buffer to 1 items
>
> /etc/motion/motion.conf does have the lines:
> videodevice netcam
> netcam_url rtsp://admin:password@192.168.254.205/Streaming/Channels/102
>
> I get the same result on different cameras, so not just one model.
>
> I noticed the rtsp source files were recently edited. Is this a newly
> introduced bug?
>
>
>
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