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Posted to user@openmeetings.apache.org by "K. Kamhamea" <ka...@googlemail.com> on 2024/10/15 11:10:01 UTC

Video streaming

Is there a way to stream the pictures taken by a camera instead of a
presentation to the user. I mean not just a little icon like picture from
the local camera but full screen and only in one direction.

Or are there alternative solutions available that better suite that purpose?

K.

Re: Video streaming

Posted by "K. Kamhamea" <ka...@googlemail.com>.

Dear Maxim,
I haven't tested it yet, but I appreciate your competent answer, as usal.

I'll be back to share my experiences as I think this might be useful for
others too.
Best regards K

Am So., 20. Okt. 2024 um 07:50 Uhr schrieb Maxim Solodovnik <
solomax666@gmail.com>:

> Hello K.
>
> sorry for the late response :(
>
> Here are the steps I was able to found for Ubuntu:
>
> #### Create fake video device
> ```
> sudo modprobe v4l2loopback max_buffers=2 devices=1 video_nr=21
> exclusive_caps=1 card_label="Virtual Webcam"
> ```
>
> #### Create stream from **Image**
> ```
> sudo ffmpeg -stream_loop -1 -re -i
> ~/Downloads/om/img/IMG_20210207_135607.jpg -pix_fmt yuv420p -vcodec
> rawvideo -f v4l2 /dev/video21
> ```
>
> #### Create stream from **Video**
> ```
> sudo ffmpeg -stream_loop -1 -re -i ~/Downloads/om/video/Avengers2.mp4
> -pix_fmt yuv420p -vcodec rawvideo -f v4l2 /dev/video21
> ```
>
> #### Clean everything up
>
> 1. Stop ffmpeg process
> 2. `sudo modprobe -r v4l2loopback`
>
>
> Will update documentation with these steps with next release
>
> On Tue, 15 Oct 2024 at 18:10, K. Kamhamea <ka...@googlemail.com> wrote:
> >
> > Is there a way to stream the pictures taken by a camera instead of a
> presentation to the user. I mean not just a little icon like picture from
> the local camera but full screen and only in one direction.
> >
> > Or are there alternative solutions available that better suite that
> purpose?
> >
> > K.
>
>
>
> --
> Best regards,
> Maxim
>

Re: Video streaming

Posted by Maxim Solodovnik <so...@gmail.com>.

Hello K.

sorry for the late response :(

Here are the steps I was able to found for Ubuntu:

#### Create fake video device
```
sudo modprobe v4l2loopback max_buffers=2 devices=1 video_nr=21
exclusive_caps=1 card_label="Virtual Webcam"
```

#### Create stream from **Image**
```
sudo ffmpeg -stream_loop -1 -re -i
~/Downloads/om/img/IMG_20210207_135607.jpg -pix_fmt yuv420p -vcodec
rawvideo -f v4l2 /dev/video21
```

#### Create stream from **Video**
```
sudo ffmpeg -stream_loop -1 -re -i ~/Downloads/om/video/Avengers2.mp4
-pix_fmt yuv420p -vcodec rawvideo -f v4l2 /dev/video21
```

#### Clean everything up

1. Stop ffmpeg process
2. `sudo modprobe -r v4l2loopback`


Will update documentation with these steps with next release

On Tue, 15 Oct 2024 at 18:10, K. Kamhamea <ka...@googlemail.com> wrote:
>
> Is there a way to stream the pictures taken by a camera instead of a presentation to the user. I mean not just a little icon like picture from the local camera but full screen and only in one direction.
>
> Or are there alternative solutions available that better suite that purpose?
>
> K.



-- 
Best regards,
Maxim