Hello,
com...@geekandfree.org (Comète), 2023.10.07 (Sat) 17:02 (CEST):
> unfortunately, yes the slider is well opened and I can confirm that
> when it is closed no LED will be visible.
on my thinkpad X1 Carbon 5th Gen., /dev/video0 is the infrared camera,
/dev/video1 is the one I want.
video -s 1920x1080 -f /dev/video1
^
gives me the best it can do, while
video -s 1920x1080 -f /dev/video0
^
gives me a small, greenish, pixelated image.
Marcus
> 7 octobre 2023 15:06 "Peter Hessler" <phess...@theapt.org> a écrit:
>
> > A lot of the Thinkpad laptops have a physical switch that will
> > cover/uncover the camera. Can you switch it to the other and try again?
> >
> > -peter
> >
> > On 2023 Oct 07 (Sat) at 12:53:12 +0000 (+0000), Comète wrote:
> > :Hi,
> > :
> > :$ video -f /dev/video0
> > :video: ioctl VIDIOC_DQBUF: Invalid argument
> > :
> > :the LED lights up near the camera and a black window is displayed...
> > :
> > :
> > :I've strictly followed https://www.openbsd.org/faq/faq13.html#webcam
> > :
> > :
> > :then to answer Crystal:
> > :
> > :$ ffplay -f v4l2 -input_format yuyv422 -video_size 960x540 -i /dev/video0
> > :ffplay version 4.4.3 Copyright (c) 2003-2022 the FFmpeg developers
> > :built with OpenBSD clang version 13.0.0
> > :configuration: --enable-shared --arch=amd64 --cc=cc --enable-debug
> > --disable-stripping
> > :--disable-indev=jack --disable-outdev=sdl2 --enable-fontconfig
> > --enable-frei0r --ena
> > :ble-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libdav1d
> > --enable-libfreetype
> > :--enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-libopus
> > --ena
> > :ble-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis
> > --enable-libvpx
> > :--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid
> > --enable-libzimg --en
> > :able-nonfree --enable-openssl --enable-libvidstab
> > --extra-cflags='-I/usr/local/include
> > :-I/usr/X11R6/include' --extra-libs='-L/usr/local/lib -L/usr/X11R6/lib'
> > --extra-ldsofla
> > :gs= --mandir=/usr/local/man --objcc=/usr/bin/false --optflags='-O2 -pipe
> > -g -Wno-redundant-decls'
> > :libavutil 56. 70.100 / 56. 70.100
> > :libavcodec 58.134.100 / 58.134.100
> > :libavformat 58. 76.100 / 58. 76.100
> > :libavdevice 58. 13.100 / 58. 13.100
> > :libavfilter 7.110.100 / 7.110.100
> > :libswscale 5. 9.100 / 5. 9.100
> > :libswresample 3. 9.100 / 3. 9.100
> > :libpostproc 55. 9.100 / 55. 9.100
> > :[video4linux2,v4l2 @ 0x68aa563e800] ioctl(VIDIOC_DQBUF): Invalid argument
> > :Input #0, video4linux2,v4l2, from '/dev/video0':
> > :Duration: N/A, bitrate: 124416 kb/s
> > :Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 960x540, 124416
> > kb/s, 15 fps, 15 tbr,
> > :1000k tbn, 1000k tbc
> > :[video4linux2,v4l2 @ 0x68aa563e800] ioctl(VIDIOC_DQBUF): Invalid argument
> > :[video4linux2,v4l2 @ 0x68aa563e800] ioctl(VIDIOC_DQBUF): Invalid argument
> > :[video4linux2,v4l2 @ 0x68aa563e800] ioctl(VIDIOC_DQBUF): Invalid argument
> > :
> > :
> > :and yes, to answer Jan:
> > :
> > :$ sysctl kern.video
> > :kern.video.record=1
> > :
> > :
> > :
> > :Thanks a lot for your help.
> > :
> > :Morgan
> > :
> > :
> > :7 octobre 2023 14:36 "Thomas Frohwein" <tfrohw...@fastmail.com> a écrit:
> > :
> > :> On Sat, Oct 07, 2023 at 07:08:21AM -0300, Crystal Kolipe wrote:
> > :>
> > :>> On Sat, Oct 07, 2023 at 08:51:36AM +0000, Comte wrote:
> > :>> The webcam seems well detected but no image is displayed...
> > :>>
> > :>> What happens if you run /usr/X11R6/bin/video instead of using ffmpeg?
> > :>>
> > :>> # dmesg | grep "uvideo"
> > :>> ^^^^^^^^^^^^^
> > :>>
> > :>> Please post a full dmesg next time.
> > :>>
> > :>> uvideo0 at uhub1 port 4 configuration 1 interface 0 "Chicony
> > Electronics Co.,Ltd. Integrated
> > :>> Camera" rev 2.01/54.20 addr 3
> > :>> video0 at uvideo0
> > :>> uvideo1 at uhub1 port 4 configuration 1 interface 2 "Chicony
> > Electronics Co.,Ltd. Integrated
> > :>> Camera" rev 2.01/54.20 addr 3
> > :>> video1 at uvideo1
> > :>>
> > :>> However, this camera should almost certainly just work anyway.
> > :>>
> > :>> $ ffplay -f v4l2 -input_format mjpeg -video_size 1280x720 -i /dev/video0
> > :>> ^^^^^^^^^^^^^^^^^^^
> > :>>
> > :>> Why?
> > :>
> > :> Looks like Comte followed the console instructions at [1] to the letter.
> > :> It seems to me that jumping right to ffplay recording isn't the best
> > :> way for you to check the camera is working. Simplest way to test seems
> > :> to me:
> > :>
> > :> $ video -f /dev/video0
> > :>
> > :> And then you should see a window with the video stream...
> > :>
> > :> [1] https://www.openbsd.org/faq/faq13.html#webcam
> > :
> >
> > --
> > Do you realize how many holes there could be if people would just take
> > the time to take the dirt out of them?
>
