gstreamer via dockerfile

[Benedict Holland]

Mounting dev points into docker containers is a very good idea. I solve a
lot of problems doing that.

On Fri, Dec 4, 2020, 9:15 PM Tyler Compton <xaviosx at gmail.com> wrote:

> Another way to do this is using `--device /dev/video0`, which gives the
> container access to less of your host device than `--privileged`.
>
> On Thu, Dec 3, 2020, 03:40 Craig Carey <cynitec at gmail.com> wrote:
>
>> You need to mount your video device, something like:
>>
>> docker run ... --privileged  -v /dev/video0:/dev/video0 ...
>>>
>>
>>
>> On Thu, Dec 3, 2020 at 10:20 AM Andrés Meseguer Valenzuela <
>> anmeva1 at etsid.upv.es> wrote:
>>
>>> Hi, I am trying to use gstreamer via docker.
>>> My purpose is that my container installs GStreamer and then, it runs a
>>> gstreamer pipeline such as displaying
>>> my webcam for example.
>>>
>>> I have writen this dockerfile:
>>>
>>> FROM ubuntu:20.10
>>>
>>> RUN apt-get update && \
>>>        apt-get -y install sudo
>>>
>>> RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser
>>> docker sudo
>>>
>>> CMD /bin/bash
>>>
>>> RUN sudo -s apt-get update
>>> RUN apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base
>>> gstreamer1.0-plugins-good gstreamer1.0-plugins-bad
>>> gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools
>>> gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3
>>> gstreamer1.0-qt5 gstreamer1.0-pulseaudio -y
>>>
>>> ENTRYPOINT gst-launch-1.0 v4l2src device=/dev/video0 !
>>> 'video/x-raw,width=640,height=480,framerate=30/1' ! videoconvert !
>>> ximagesink
>>>
>>> USER docker
>>>
>>> It builds, but once I run the image with flags (--net=host -e DISPLAY
>>> -v $HOME/.Xauthority:/root/.Xauthority )
>>> it returns an error:
>>> ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Cannot
>>> identify device '/dev/video0'.
>>>
>>> I know that this is a problem of my dockerfile because this GStreamer
>>> pipeline works in local.
>>> Hence, I would like to know how to solve this.
>>> Thanks for your valuable time.
>>> Regards,
>>> Andrés.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
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>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
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