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Today's Topics:
1. Re: Lines on displayed image (tosiara)
----------------------------------------------------------------------
Message: 1
Date: Wed, 27 Dec 2017 16:53:20 +0200
From: tosiara <tosi...@gmail.com>
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Lines on displayed image
Message-ID:
<CACHTdwSuwb=4cjC=3ouehb6+rhxsdqfc9bky+rpe6fq5eqw...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Sorry, Alessandro, that was question for Timothy and the issue with "Lines
on displayed image"
Your issue is being tracked in the other mail thread
On Wed, Dec 27, 2017 at 4:45 PM, Alessandro Parmiani <
ale.parmian...@gmail.com> wrote:
> Ok,
>
> The first command output is:
>
> pi@raspberrypi:/ $ v4l2-ctl -d /dev/video0 --list-formats-ex
> Failed to open /dev/video0: No such file or directory
>
> In the log i don't see any URB packet error.
>
> For the small video i use i googledrive link because the are problems of
> mail size.
> Check if you can download it.
> ?
> 13-54-11.mp4
> <https://drive.google.com/file/d/1gJLGfMKWOuXlV6lEBRkgNh0tnZEjFhbu/view?usp=drive_web>
> ?
>
> Thanks
> Alessandro
>
> 2017-12-27 14:46 GMT+01:00 tosiara <tosi...@gmail.com>:
>
>> 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 <motionmrd...@gmail.com> 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 <motionmrd...@gmail.com> <motionmrd...@gmail.com>
>>> *Reply-To: *Motion discussion list <motion-user@lists.sourceforge.net>
>>> <motion-user@lists.sourceforge.net>
>>> *Date: *Sunday, December 24, 2017 at 2:12 PM
>>> *To: *<motion-user@lists.sourceforge.net>
>>> <motion-user@lists.sourceforge.net>
>>> *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 <tosi...@gmail.com> <tosi...@gmail.com>
>>> *Reply-To: *Motion discussion list <motion-user@lists.sourceforge.net>
>>> <motion-user@lists.sourceforge.net>
>>> *Date: *Thursday, December 21, 2017 at 9:59 AM
>>> *To: *Motion discussion list <motion-user@lists.sourceforge.net>
>>> <motion-user@lists.sourceforge.net>
>>> *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 <
>>> timothyebucha...@gmail.com> 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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>>
>>
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>
>
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