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On 12/22/14 04:00, meino.cramer@×××.de wrote: |
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>Joseph <syscon780@×××××.com> [14-12-22 03:52]: |
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>> On 12/21/14 22:08, Alexander Kapshuk wrote: |
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>> > grep '^CONFIG.*V4L' /usr/src/linux/.config |
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>> > CONFIG_VIDEO_V4L2=m |
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>> > CONFIG_V4L_PLATFORM_DRIVERS=y |
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>> > CONFIG_MEDIA_SUPPORT=m |
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>> > CONFIG_USB_VIDEO_CLASS=m |
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>> > CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y |
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>> > CONFIG_USB_GSPCA=m |
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>> > CONFIG_MEDIA_PCI_SUPPORT=y |
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>> > grep -s ^LD_PRELOAD .* |
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>> > .bash_profile:LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so |
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>> > Also, you may want to try plugging you webcam into a USB2 port, if |
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>> > available, instead of a USB3 one, as suggested here, |
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>> > |
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>> >[6]http://linux-kernel.2935.n7.nabble.com/3-15-8-USB-issue-with-uvc-cam |
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>> > -td920378.html. |
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>> > Hope this helps. |
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>> |
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>> When I try to run: guvcview |
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>> |
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>> I get: |
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>> guvcview 1.6.1 |
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>> ALSA lib |
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>> /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) |
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>> Unknown PCM cards.pcm.rear |
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>> ALSA lib |
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>> /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) |
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>> Unknown PCM cards.pcm.center_lfe |
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>> ALSA lib |
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>> /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) |
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>> Unknown PCM cards.pcm.side |
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>> ALSA lib |
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>> /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm_route.c:947:(find_matching_chmap) |
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>> Found no matching channel map |
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>> video device: /dev/video0 ERROR opening V4L2 interface for /dev/video0 |
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>> unable to detect video devices on your system (0) |
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>> ERROR opening V4L interface: Permission denied |
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>> Init video returned -1 |
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>> VIDIOC_REQBUFS - Failed to delete buffers: Inappropriate ioctl for |
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>> device (errno 25) |
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>> cleaned allocations - 100% |
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>> Closing portaudio ...OK |
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>> |
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>> -- |
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>> Joseph |
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>> |
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> |
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>Hi Joseph, |
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> |
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>in conjucntion with the C920 I found that guvcview does not plai well |
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>with it. |
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> |
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>First try to get anything from your webcam, before trying Skype or |
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>such - so you have to fight against too many "open ends" or failure |
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>sources. |
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> |
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>Do you have gstreamer installed? |
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> |
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>Try this command/shell script: |
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>You have to adopt the device options to you setup. |
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>It will record and display the video stream. |
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> |
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>#! /bin/zsh |
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>td=`date +%Y-%m-%d-%Hh%Mh%Ss` |
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>fn=c920-$td.mp4 |
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>gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! muxout. alsasrc device="hw:3,0" ! queue ! audioconvert ! lamemp3enc ! muxout. matroskamux name=muxout streamable=true ! filesink location=$fn & |
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>mplayer $fn & |
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> |
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>HTH! |
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>Best regards, |
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>Meino |
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|
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I can get a video when I run "guvcview" with banch of errors: |
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|
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vid:046d |
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pid:0825 |
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driver:uvcvideo |
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mapping control for Pan (relative) |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Tilt (relative) |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Pan Reset |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Tilt Reset |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Focus (absolute) |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for LED1 Mode |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for LED1 Frequency |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Disable video processing |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Raw bits per pixel |
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UVCIOC_CTRL_MAP - Error: No such file or directory |
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mapping control for Off |
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UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device |
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checking format: 1196444237 |
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VIDIOC_G_COMP:: Inappropriate ioctl for device |
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fps is set to 1/25 |
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drawing controls |
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|
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Checking video mode 640x480@32bpp : OK |
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Could not grab image (select timeout): Resource temporarily unavailable |
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|
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When I try to record anything bunch of errors messages popping up in command line: |
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|
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(guvcview:5004): GConf-WARNING **: error creating revert set: Client failed to connect to the D-BUS daemon: |
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Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout |
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expired, or the network connection was broken. |
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|
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I don't think this web-cam is Linux friendly :-/ |
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Are there any alternative, web-cam that support Linux 100% |
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|
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-- |
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Joseph |
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