Paulo Assis <pj.assis <at> gmail.com> writes:
>
> Hi, I find strange the following output from luvcview:
>
> Frame format: YUYV (MJPG is not supported by device)
>
> Your lsusb output seems to indicate that MJPG is indeed supported.
Thanks, sir for being helpful.
I just want to cleare something .
Luvcview
Is open the hp integrate camera not my usb webcam.
>
> Could you post the output of guvcview --verbose?
> This should list all video formats available in your device (and the
> ones converted by libv4l)
sok@sok-HP-ProBook-4520s:~$ guvcview --verbose
guvcview 1.4.1
video_device: /dev/video0
vid_sleep: 0
cap_meth: 1
resolution: 176 x 144
windowsize: 512 x 700
vert pane: 578
spin behavior: 0
mode: yuyv
fps: 1/30
Display Fps: 0
bpp: 0
hwaccel: 1
avi_format: 0
sound: 1
sound Device: 0
sound samp rate: 0
sound Channels: 0
Sound delay: 0 nanosec
Sound Format: 80
Pan Step: 2 degrees
Tilt Step: 2 degrees
Video Filter Flags: 0
image inc: 0
profile(default):/home/sok/default.gpfl
starting portaudio...
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
language catalog=> dir:/usr/share/locale type:UTF-8 lang:en_US.UTF-8
cat:guvcview.mo
yuyv: setting format to 1448695129
capture method = 1
video device: /dev/video0
/dev/video0 - device 1
/dev/video1 - device 2
Init. HP Webcam [2 MP Fixed] (location: usb-0000:00:1a.0-1.5)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 1024, height = 768 }
Time interval between frame: 1/10,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/8,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ discrete: width = 1600, height = 900 }
Time interval between frame: 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 1024, height = 768 }
Time interval between frame: 1/10,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/8,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ discrete: width = 1600, height = 900 }
Time interval between frame: 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 1024, height = 768 }
Time interval between frame: 1/10,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/8,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ discrete: width = 1600, height = 900 }
Time interval between frame: 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 1024, height = 768 }
Time interval between frame: 1/10,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/8,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ discrete: width = 1600, height = 900 }
Time interval between frame: 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 1024, height = 768 }
Time interval between frame: 1/10,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/8,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ discrete: width = 1600, height = 900 }
Time interval between frame: 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
vid:05c8
pid:0403
driver:uvcvideo
checking format: 1448695129
fps is set to 1/30
drawing controls
control[0]: 0x980900 Brightness, -64:64:1, default 0
control[0]: 0x980901 Contrast, 0:64:1, default 25
control[0]: 0x980902 Saturation, 0:128:1, default 64
control[0]: 0x980903 Hue, -40:40:1, default 0
control[0]: 0x98090c White Balance Temperature, Auto, 0:1:1, default 1
control[0]: 0x980910 Gamma, 72:500:1, default 100
control[0]: 0x980918 Power Line Frequency, 0:2:1, default 2
control[0]: 0x98091a White Balance Temperature, 2800:6500:1, default 4000
control[0]: 0x98091b Sharpness, 0:5:1, default 2
control[0]: 0x98091c Backlight Compensation, 0:1:1, default 0
control[0]: 0x9a0903 Exposure, Auto Priority, 0:1:1, default 0
resolutions of format(1) = 9
frame rates of 2ยบ resolution=1
fps is set to 1/30
Def. Res: 1 numb. fps:1
--------------------------------------- device #0
Name = HDA Intel: STAC92xx Analog (hw:0,0)
Host API = ALSA
Max inputs = 2, Max outputs = 2
Def. low input latency = 0.012
Def. low output latency = 0.012
Def. high input latency = 0.046
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #1
Name = HDA ATI HDMI: ATI HDMI (hw:1,3)
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.012
Def. high input latency = -1.000
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #2
Name = FaceCam 312: USB Audio (hw:2,0)
Host API = ALSA
Max inputs = 1, Max outputs = 0
Def. low input latency = 0.011
Def. low output latency = -1.000
Def. high input latency = 0.043
Def. high output latency = -1.000
Def. sample rate = 48000.00
--------------------------------------- device #3
Name = front
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.012
Def. high input latency = -1.000
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #4
Name = surround40
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.012
Def. high input latency = -1.000
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #5
Name = surround51
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.012
Def. high input latency = -1.000
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #6
Name = surround71
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.012
Def. high input latency = -1.000
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #7
Name = pulse
Host API = ALSA
Max inputs = 32, Max outputs = 32
Def. low input latency = 0.012
Def. low output latency = 0.012
Def. high input latency = 0.046
Def. high output latency = 0.046
Def. sample rate = 44100.00
--------------------------------------- device #8
Name = dmix
Host API = ALSA
Max inputs = 0, Max outputs = 2
Def. low input latency = -1.000
Def. low output latency = 0.043
Def. high input latency = -1.000
Def. high output latency = 0.043
Def. sample rate = 48000.00
--------------------------------------- device #9
[ Default Input, Default Output ]
Name = default
Host API = ALSA
Max inputs = 32, Max outputs = 32
Def. low input latency = 0.012
Def. low output latency = 0.012
Def. high input latency = 0.046
Def. high output latency = 0.046
Def. sample rate = 44100.00
----------------------------------------------
SampleRate:0 Channels:0
Video driver: x11
A window manager is available
guvcview 1.4.1
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/video1
/dev/video0 - device 1
/dev/video1 - device 2
Init. FaceCam 312 (location: usb-0000:00:1d.0-1.1)
{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 1/1,
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/5,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/20,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/4,
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/20,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 1/1,
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/20,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 1/1,
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/20,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 1/1,
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 1/1,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/20,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 1/1,
vid:0458
pid:7076
driver:uvcvideo
checking format: 1196444237
VIDIOC_G_COMP:: Invalid argument
compression control not supported
fps is set to 1/30
drawing controls
fps is set to 1/30
>
> Regards,
> Paulo
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> > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
> >
>
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