#18953: mjpg-streamer won't work with many webcam.
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Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Chaos Calmer (trunk)
Component: packages | Version: Trunk
Keywords: |
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I tried with at least 4 webcam, only one work with gspca driver, 3 webcam
with uvc supported won't work.
Here are example one don't work:
{{{
root@OpenWrt:~# lsusb
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. UVC camera (Bresser
microscope)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
}}}
{{{
dmesg | egrep -i usb
[ 6.710000] usbcore: registered new interface driver usbfs
[ 6.720000] usbcore: registered new interface driver hub
[ 6.720000] usbcore: registered new device driver usb
[ 6.730000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 6.750000] ehci-platform ehci-platform: new USB bus registered,
assigned bus number 1
[ 6.780000] ehci-platform ehci-platform: USB 2.0 started, EHCI 1.00
[ 6.780000] hub 1-0:1.0: USB hub found
[ 6.790000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 6.810000] ohci-platform ohci-platform: new USB bus registered,
assigned bus number 2
[ 6.890000] hub 2-0:1.0: USB hub found
[ 7.110000] usb 1-1: new high-speed USB device number 2 using ehci-
platform
[ 14.830000] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101)
[ 14.850000] input: USB2.0 Camera as /devices/platform/ehci-
platform/usb1/1-1/1-1:1.0/input/input0
[ 14.850000] usbcore: registered new interface driver uvcvideo
[ 14.860000] USB Video Class driver (1.1.1)
}}}
{{{
ls /dev/video*
/dev/video0
}}}
{{{
v4l2-ctl --all -d /dev/video0
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : USB2.0 Camera
Bus info : usb-ehci-platform-1
Driver version: 3.14.32
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 : 320/240
Pixel Format : 'YUYV'
Field : None
Bytes per Line: 640
Size Image : 153600
Colorspace : SRGB
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 320, Height 240
Default : Left 0, Top 0, Width 320, Height 240
Pixel Aspect: 1/1
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
brightness (int) : min=0 max=100 step=1 default=30
value=30
contrast (int) : min=0 max=100 step=1 default=57
value=57
saturation (int) : min=0 max=4 step=1 default=2
value=2
gamma (int) : min=1 max=8 step=1 default=3
value=3
power_line_frequency (menu) : min=0 max=2 default=1 value=1
sharpness (int) : min=0 max=100 step=1 default=10
value=10
backlight_compensation (int) : min=0 max=1 step=1 default=1
value=1
}}}
{{{
uvcdynctrl -f -d /dev/video0
Listing available frame formats for device /dev/video0:
Pixel format: YUYV (YUV 4:2:2 (YUYV); MIME type: video/x-raw-yuv)
Frame size: 640x480
Frame rates: 30
Frame size: 160x120
Frame rates: 30
Frame size: 320x240
Frame rates: 30
Frame size: 176x144
Frame rates: 30
Frame size: 352x288
Frame rates: 30
}}}
{{{
mjpg_streamer --input "input_uvc.so --device /dev/video0 -r 640x480 -f 1 -
y" --output "output_http.so --port 8080 --www /www/webcam"
MJPG Streamer Version: svn rev: exported
i: Using V4L2 device.: /dev/video0
i: Desired Resolution: 640 x 480
i: Frames Per Second.: 1
i: Format............: YUYV
i: JPEG Quality......: 80
i: TV-Norm...........: DEFAULT
i: FPS coerced ......: from 1 to 30
i: Frame period time ......: 1000 ms
o: www-folder-path...: /www/webcam/
o: HTTP TCP port.....: 8080
o: username:password.: disabled
o: commands..........: enabled
Segmentation fault
}}}
My router is wzr-hp-ag300h. CC trunk r44330.
--
Ticket URL: <https://dev.openwrt.org/ticket/18953>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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