[oi-dev] Logitech C930e

[Mehmet Erol Sanliturk]

Are able to use

https://opencv.org/
OpenCV (Open Source Computer Vision Library)

 ?

In Linux , it is able to use a web camera .
In OpenIndiana , I think , it can use a web camera also .


Mehmet Erol Sanliturk








On Sun, Nov 7, 2021 at 2:36 PM stes at PANDORA.BE <stes at telenet.be> wrote:

>
> Hi,
>
> I have attached meanwhile a Logitech C930e webcam to the USB 3.1 ports
> (some docs refer to these ports as USB 3.2) on my OpenIndiana system.
>
> This seems to work.  I can record audio with "audacity" so that's already
> working.  The microphone of the webcam works and functions fine.
>
> I have not actually been using the webcam video because there seems no
> "cheese" package in the OpenIndiana repository and I haven't figured out
> how to capture video with "ffmpeg".
>
> So the USB 2.0 device seems to function on the xhci driver for the USB
> 3.1/3.2 ports:
>
> # modinfo | grep xhci
> 103 fffffffff7cf5000   e8f0 251   1  xhci (USB xHCI Driver)
>
> # cfgadm -lv usb1/6
> Ap_Id                          Receptacle   Occupant     Condition
> Information
> When         Type         Busy     Phys_Id
> usb1/6                         connected    configured   ok         Mfg:
> <undef>  Product: Logitech Webcam C930e  NConfigs: 1  Config: 0  <no cfg
> str descr>
> unavailable  usb-miscell  n        /devices/pci at 0,0/pci1028,98d at 14:6
>
> # modinfo usbvc
> ffffffff7e73000   7bf8 303   1  usbvc (USB video class driver)
>
> Cheese is "obsoleted" in the OI repository.  The latest cheese-41 seems to
> use "meson" and doesn't build for me, neither do old versions seem to build.
>
> Perhaps it makes more sense to capture video with "ffmpeg".
>
> But I think ffmpeg is currently built on OpenIndiana without
> --enable-libv4l2 configure option:
>
> https://ffmpeg.org/ffmpeg-devices.html#video4linux2_002c-v4l2
>
> So the video4linux2 options do not seem to work.
>
> $ ffmpeg -list_formats all
> ffmpeg version 3.2.14 Copyright (c) 2000-2019 the FFmpeg developers
>   built with gcc 7.5.0 (OpenIndiana 7.5.0-il-0)
>   configuration: --prefix=/usr --mandir=/usr/share/man --bindir=/usr/bin
> --libdir=/usr/lib/amd64 --cc=/usr/gcc/7/bin/gcc --enable-runtime-cpudetect
> --enable-mmx --enable-sse --enable-ssse3 --disable-debug --enable-nonfree
> --enable-gpl --enable-postproc --enable-avfilter --enable-swscale
> --enable-libgsm --enable-libxvid --enable-libx264 --enable-libx265
> --enable-libtheora --enable-libmp3lame --enable-libvorbis --enable-libvpx
> --enable-x11grab --enable-libspeex --enable-pthreads --enable-libass
> --enable-openssl --enable-openal --enable-avresample
> --enable-libschroedinger --enable-libopenjpeg --enable-librtmp
> --enable-vdpau --enable-shared --disable-static
>   libavutil      55. 34.101 / 55. 34.101
>   libavcodec     57. 64.101 / 57. 64.101
>   libavformat    57. 56.101 / 57. 56.101
>   libavdevice    57.  1.100 / 57.  1.100
>   libavfilter     6. 65.100 /  6. 65.100
>   libavresample   3.  1.  0 /  3.  1.  0
>   libswscale      4.  2.100 /  4.  2.100
>   libswresample   2.  3.100 /  2.  3.100
>   libpostproc    54.  1.100 / 54.  1.100
> Unrecognized option 'list_formats'.
>
> The option list_formats seems not to be supported although according to
> the docs if --enable-v4l2 would be used, it could perhaps work.
>
> The /dev/video0 device is there.
>
> Has anyone suggestions on what other application could be used to test the
> /dev/video0 device ?
>
> Regards,
> David Stes
>
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>
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