Вебкамера Logitech C270 и Debian 8

K@BAN · 14 августа 2016, 12:50:01

Доброго времени суток.
Есть камера Logitech C270, которая под виндой семеркой выдает отличную картинку, но под debian'ом 8.5 x64 картинка просто ужасная.
В обоих случаях тестировал её через vlc player.
Оболочка lxde.

Нашел в нете совет поставить cheese, но оня тянет с собой 230мб библиотек. Стоит ли устанавливать?

Код Выделить

lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

lsmod | grep uvc
uvcvideo               79005  4 
videobuf2_vmalloc      12816  1 uvcvideo
videobuf2_core         47787  1 uvcvideo
videodev              126451  7 uvcvideo,v4l2_common,videobuf2_core
media                  18305  2 uvcvideo,videodev
usbcore               195468  8 usblp,snd_usb_audio,uvcvideo,ohci_hcd,ohci_pci,snd_usbmidi_lib,ehci_hcd,ehci_pci

usb-devices 
T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=046d ProdID=0825 Rev=00.10
S:  SerialNumber=A541DE90
C:  #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo
I:  If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
I:  If#= 3 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio

Может дело в отсутствии этих самых библиотек?

Malaheenee · 14 августа 2016, 14:43:53

libv4l устанавливали? У нас c310, отличий в картинке нет.

K@BAN · 14 августа 2016, 17:38:41

Пишет, что установлена самая свежая.

K@BAN · 30 сентября 2016, 16:04:33

Прошло время и встал вопрос ребром, необходимо подключить камеру и, что самое главное, получить хорошую картинку.

отключаю и подключаю камеру, пробую получить картинку с неё на vlc плеер, вывод

Код Выделить

# dmesg 
[ 3197.242577] usblp0: removed
[ 5320.276079] usb 1-1: new high-speed USB device number 29 using ehci-pci
[ 5320.625045] usb 1-1: New USB device found, idVendor=046d, idProduct=0825
[ 5320.625053] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=2
[ 5320.625056] usb 1-1: SerialNumber: A541DE90
[ 5320.625490] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[ 5320.723144] input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:02.1
/usb1/1-1/1-1:1.0/input/input15
[ 5321.886934] usb 1-1: set resolution quirk: cval->res = 384
[ 5336.389878] perf interrupt took too long (2504 > 2500), lowering kernel.perf_
event_max_sample_rate to 50000
[ 5441.348063] usb 1-1: reset high-speed USB device number 29 using ehci-pci
[ 5442.180313] uvcvideo: Failed to query (GET_CUR) UVC control 2 on unit 2: -110 (exp. 2).
[ 5442.480315] uvcvideo: Failed to query (GET_DEF) UVC control 3 on unit 2: -110 (exp. 2).
[ 5443.842804] usb 1-1: 3:4: cannot set freq 48000 to ep 0x86
[ 5567.312291] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5572.316319] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5588.704291] uvcvideo: Failed to set UVC commit control : -110 (exp. 26).
[ 5588.704305] uvcvideo 1-1:1.1: resume error -5
[ 5593.704854] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5598.712289] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5636.288290] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5641.292290] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5666.844289] uvcvideo: Failed to set UVC commit control : -110 (exp. 26).
[ 5666.844302] uvcvideo 1-1:1.1: resume error -5
[ 5671.876318] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
[ 5676.884294] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).

Код Выделить

#v4l2-ctl --all
Driver Info (not using libv4l2):
	Driver name   : uvcvideo
	Card type     : UVC Camera (046d:0825)
	Bus info      : usb-0000:00:02.1-1
	Driver version: 3.16.36
	Capabilities  : 0x84000001
		Video Capture
		Streaming
		Device Capabilities
	Device Caps   : 0x04000001
		Video Capture
		Streaming
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
	Width/Height  : 752/416
	Pixel Format  : 'YUYV'
	Field         : None
	Bytes per Line: 1504
	Size Image    : 625664
	Colorspace    : SRGB
Crop Capability Video Capture:
	Bounds      : Left 0, Top 0, Width 752, Height 416
	Default     : Left 0, Top 0, Width 752, Height 416
	Pixel Aspect: 1/1
Streaming Parameters Video Capture:
	Capabilities     : timeperframe
	Frames per second: 25.000 (25/1)
	Read buffers     : 0

А вот еще интересный вывод, т.е. разрешение 1280х720 поддерживается. Еще и 2 режима работы, если я правильно понял прогуглив в интернетах, то YUYV это режим передачи необработанных данных, вся обработка ложится на проц. А обработкой MJPEG занимается сама камера и на выходе идет готовая картинка. Если ошибся, поправте, пожалуста.

Код Выделить

v4l2-ctl -d /dev/video0 --list-formats-ext 
ioctl: VIDIOC_ENUM_FMT
	Index       : 0
	Type        : Video Capture
	Pixel Format: 'YUYV'
	Name        : YUV 4:2:2 (YUYV)
		Size: Discrete 640x480
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 160x120
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 176x144
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 320x176
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 320x240
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 352x288
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 432x240
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 544x288
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 640x360
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 752x416
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 800x448
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 800x600
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 864x480
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 960x544
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 960x720
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1024x576
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1184x656
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1280x720
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1280x960
			Interval: Discrete 0.133s (7.500 fps)
			Interval: Discrete 0.200s (5.000 fps)

	Index       : 1
	Type        : Video Capture
	Pixel Format: 'MJPG' (compressed)
	Name        : MJPEG
		Size: Discrete 640x480
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 160x120
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 176x144
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 320x176
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 320x240
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 352x288
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 432x240
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 544x288
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 640x360
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 752x416
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 800x448
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 800x600
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 864x480
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 960x544
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 960x720
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1024x576
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1184x656
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1280x720
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 1280x960
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.040s (25.000 fps)
			Interval: Discrete 0.050s (20.000 fps)
			Interval: Discrete 0.067s (15.000 fps)
			Interval: Discrete 0.100s (10.000 fps)
			Interval: Discrete 0.200s (5.000 fps)

Подключаю многострадальную камер к другому ПК с аналогичной операционкой:

Код Выделить

# v4l2-ctl -d  /dev/video1 --all
Driver Info (not using libv4l2):
	Driver name   : uvcvideo
	Card type     : UVC Camera (046d:0825)
	Bus info      : usb-0000:00:1d.0-1.1
	Driver version: 3.16.36
	Capabilities  : 0x84000001
		Video Capture
		Streaming
		Device Capabilities
	Device Caps   : 0x04000001
		Video Capture
		Streaming
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
	Width/Height  : 640/480
	Pixel Format  : 'YUYV'
	Field         : None
	Bytes per Line: 1280
	Size Image    : 614400
	Colorspace    : SRGB
Crop Capability Video Capture:
	Bounds      : Left 0, Top 0, Width 640, Height 480
	Default     : Left 0, Top 0, Width 640, Height 480
	Pixel Aspect: 1/1

http://superuser.com/questions/494575/ffmpeg-open-webcam-using-yuyv-but-i-want-mjpeg

Русскоязычное сообщество Debian GNU/Linux

Вебкамера Logitech C270 и Debian 8

K@BAN

Malaheenee

K@BAN

K@BAN