Après avoir installé guvcview et ses dépendances, j'obtiens ce message dans le journal d'erreurs (webcam Labtec)
idem avec une Webcam "Sangha"# guvcview
guvcview 1.5.3
ALSA lib pcm_asym.c:106:(_snd_pcm_asym_open) capture slave is not defined
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c(snd_pcm_dmix_open) unable to open slave
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
video device: /dev/video0
Unable to find parent usb device.Init. DC10plus[0] (location: PCI:0000:04:02.0)
{ pixelformat = 'RGBO', description = '15-bit RGB LE' }
{ not supported - request format(1329743698) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBQ', description = '15-bit RGB BE' }
{ not supported - request format(1363298130) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBP', description = '16-bit RGB LE' }
{ not supported - request format(1346520914) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBR', description = '16-bit RGB BE' }
{ not supported - request format(1380075346) support at http://guvcview.sourceforge.net }
{ pixelformat = 'BGR3', description = '24-bit RGB' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:1 fsizeind: 1
{ pixelformat = 'BGR4', description = '32-bit RGB LE' }
{ not supported - request format(877807426) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGB4', description = '32-bit RGB BE' }
{ not supported - request format(876758866) support at http://guvcview.sourceforge.net }
{ pixelformat = 'YUYV', description = '4:2:2, packed, YUYV' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'UYVY', description = '4:2:2, packed, UYVY' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'MJPG', description = 'Hardware-encoded Motion-JPEG' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'RGB3', description = 'RGB3' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:5 fsizeind: 1
{ pixelformat = 'YU12', description = 'YU12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:6 fsizeind: 1
{ pixelformat = 'YV12', description = 'YV12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:7 fsizeind: 1
vid:811fd50
pid:811fc00
driver:zoran
checking format: 1196444237
Requested Format unavailable: get width 768 height 576
VIDIOC_G_COMP:
quality: 50
APPn: 0
APP_len: 0
APP_data:
COM_len: 0
COM_data:
jpeg_markers: 0x18
Unable to set 1/25 fps
VIDIOC_S_PARM error: Inappropriate ioctl for device
VIDIOC_G_PARM - Unable to get timeperframe: Inappropriate ioctl for device
fps is set to 1/25
drawing controls
NEXT_CTRL flag not supported
Segmentation fault
Une idée?# guvcview
guvcview 1.5.3
ALSA lib pcm_asym.c:106:(_snd_pcm_asym_open) capture slave is not defined
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c(snd_pcm_dmix_open) unable to open slave
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
video device: /dev/video0
Unable to find parent usb device.Init. DC10plus[0] (location: PCI:0000:04:02.0)
{ pixelformat = 'RGBO', description = '15-bit RGB LE' }
{ not supported - request format(1329743698) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBQ', description = '15-bit RGB BE' }
{ not supported - request format(1363298130) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBP', description = '16-bit RGB LE' }
{ not supported - request format(1346520914) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGBR', description = '16-bit RGB BE' }
{ not supported - request format(1380075346) support at http://guvcview.sourceforge.net }
{ pixelformat = 'BGR3', description = '24-bit RGB' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:1 fsizeind: 1
{ pixelformat = 'BGR4', description = '32-bit RGB LE' }
{ not supported - request format(877807426) support at http://guvcview.sourceforge.net }
{ pixelformat = 'RGB4', description = '32-bit RGB BE' }
{ not supported - request format(876758866) support at http://guvcview.sourceforge.net }
{ pixelformat = 'YUYV', description = '4:2:2, packed, YUYV' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'UYVY', description = '4:2:2, packed, UYVY' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'MJPG', description = 'Hardware-encoded Motion-JPEG' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'RGB3', description = 'RGB3' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:5 fsizeind: 1
{ pixelformat = 'YU12', description = 'YU12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:6 fsizeind: 1
{ pixelformat = 'YV12', description = 'YV12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:7 fsizeind: 1
vid:8119890
pid:b627f470
driver:zoran
checking format: 1196444237
Requested Format unavailable: get width 768 height 576
VIDIOC_G_COMP:
quality: 50
APPn: 0
APP_len: 0
APP_data:
COM_len: 0
COM_data:
jpeg_markers: 0x18
Unable to set 1/25 fps
VIDIOC_S_PARM error: Inappropriate ioctl for device
VIDIOC_G_PARM - Unable to get timeperframe: Inappropriate ioctl for device
fps is set to 1/25
drawing controls
NEXT_CTRL flag not supported
Segmentation fault
Se peut-il que les deux webcams que j'ai sous le coude ne soient pas reconnues/prises en charge par guvcview? Ou alors ma carte d'acquisition vidéo "DC10plus" qui fiche la pagaille?
Cordialement.