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Today's Topics:
1. Re: Lines on displayed image (Timothy Buchanan)
----------------------------------------------------------------------
Message: 1
Date: Fri, 29 Dec 2017 08:01:11 -0700
From: Timothy Buchanan <[email protected]>
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Lines on displayed image
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"
Thanks, that was a silly mistake. Fixing width/height didn?t help open netcam,
though. I?ve decided just to live with the green lines, since I mainly want to
see if anyone is on camera. I?ve tried ffplay and ffstream for that, but there
doesn?t seem to be a way to password protect the produced web page. Thanks
again.
Timothy
From: MrDave <[email protected]>
Reply-To: Motion discussion list <[email protected]>
Date: Wednesday, December 27, 2017 at 11:39 AM
To: <[email protected]>
Subject: Re: [Motion-user] Lines on displayed image
It also looks like you have the height/width swapped within the Motion
configuration file. See the section where it is "Testing" vs "Using". This
could be why the netcam option isn't working.
On 12/27/2017 11:19 AM, tosiara wrote:
You can upload the video to some file hosting like Google Drive
I expect this command to return all possible resolutions and pixel formats,
like this:
$ v4l2-ctl -d /dev/video0 --list-formats-ex
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUYV 4:2:2
Size: Discrete 640x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 160x120
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 176x144
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 320x240
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 352x288
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 1280x720
Interval: Discrete 0.100s (10.000 fps)
Size: Discrete 1280x800
Interval: Discrete 0.100s (10.000 fps)
Index : 1
Type : Video Capture
Pixel Format: 'MJPG' (compressed)
Name : Motion-JPEG
Size: Discrete 640x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 160x120
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 176x144
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 320x240
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 352x288
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 1280x720
Interval: Discrete 0.033s (30.000 fps)
Size: Discrete 1280x800
Interval: Discrete 0.033s (30.000 fps)
On Wed, Dec 27, 2017 at 8:04 PM, Timothy Buchanan <[email protected]>
wrote:
That command returns the following:
Index: 0
Type: Video Capture
Pixel format: ?YUYV?
Name: YUYV 4:2:2
I?ve attached the output from motion.log, also the camera3.conf file. I made
an avi file with vlc, but it is too big to send even when compressed.
Timothy
From: tosiara <[email protected]>
Reply-To: Motion discussion list <[email protected]>
Date: Wednesday, December 27, 2017 at 6:47 AM
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Lines on displayed image
Timothy,
can you collect the following info:
output of "v4l2-ctl -d /dev/video0 --list-formats-ex"
a short sample video 2-3 seconds?
during motion run do you see any USB related messages in syslog (like URB
packet error)?
Those lines look like a wrong bytes being written into buffer of there could be
incomplete or truncated frames coming. If you don't see those lines in VLC that
could mean you are using different resolution/pixel format with the player
On Wed, Dec 27, 2017 at 1:57 AM, MrDave <[email protected]> wrote:
I'll add a issue to the project to address the abort. (There is already a bug
filed upstream in ffmpeg on it).
It is surprising this option does not function. There are only two options
that are specified in Motion for this method. The dimensions(height/width) and
the framerate. If you try a `ffprobe` of the device, it should report the
device defaults on these and you can try those as the configuration options in
Motion.
MrDave
On 12/26/2017 10:14 AM, Timothy Buchanan wrote:
I upgraded to 4.1.1. Using netcam_url v4l2:///dev/video1 and each palette 0
through 17 and 21, I get ?unable to open video device,? except with palette 8,
which causes a program abort. Running ffplay ?f /dev/video1 produces a good
image, though I get repeated warnings that the dequeued vl42 buff contains
corrupted data (691200 bytes). Suggestions? Thanks.
Timothy
From: MrDave <[email protected]>
Reply-To: Motion discussion list <[email protected]>
Date: Sunday, December 24, 2017 at 2:12 PM
To: <[email protected]>
Subject: Re: [Motion-user] Lines on displayed image
Yes, the v4l2 via the netcam_url option functionality was added starting in
version 4.1 so it will not work with 4.0.
Regarding the "unhelpful" message on the standard being set. 45056 means it
set it to V4L2_STD_NTSC. Other video standards Motion may report are 16711680
for V4L2_STD_SECAM and 255 for V4L2_STD_PAL. (This is legacy code to print the
number rather than a readable message).
This is the first that I've heard of a usb device reporting options to use
different video standards so changing that parameter may assist.
MrDave
On 12/24/2017 11:46 AM, Timothy Buchanan wrote:
I decided to start again from scratch by installing stretch (had been using
Jessie). The included add/remove GUI installed motion 4.0, not 4.1. That
version?s motion.conf offers the netcam option, but using netcam_url
v4l2:///dev/video0 returns a gray image with the error ?could not open.? Is it
only 4.1 that works with netcam? Curiously, vlc media player will open the
camera and display v4l2:///dev/video0 when doing so.
As to the usb-to-analog device, it is the UCEC adapter sold on amazon and has
the UTV007 chipset. I have not installed any drivers. Where would I find the
driver Linux is using?
Thanks again for help.
Timothy
From: tosiara <[email protected]>
Reply-To: Motion discussion list <[email protected]>
Date: Thursday, December 21, 2017 at 9:59 AM
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Lines on displayed image
I have had some issues with usb-to-analog devices, like Easycap and similar. At
that time indeed only motion had those issues, but after some changes in the
driver the issues were resolved. So it could be some compatibility with the
hardware's driver. Can you provide more details what kind of capture card you
are using?
As a workaround you can use the way MrDave mentioned - capture through the
netcam. Specify this url:
netcam_url v4l2:///dev/video0
Please report back if you still get corrupted image using netcam
On Thu, Dec 21, 2017 at 6:43 PM, Timothy Buchanan <[email protected]>
wrote:
MrDave and tosiara, thanks for help. I?ve attached the motion log and output of
one of the cameras (there are three, but all the same) to the command v4l2-ctl
-d /dev/video0 ?all.
Palette YUYV seems to be the only one supported, and that is chosen. I set the
config to use NTSC, but it always chooses ?standard method 45056.? I don?t find
any info on that.
Do you see problems in the output files I?ve attached? Thanks again.
timothy
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