[jitsi-issues] [JIRA] Created: (JITSI-1094) Webcam not listed as camera

akuckart (JIRA) jira-no-reply at java.net
Sat Jan 5 22:01:52 CET 2013


Webcam not listed as camera
---------------------------

                 Key: JITSI-1094
                 URL: http://java.net/jira/browse/JITSI-1094
             Project: jitsi
          Issue Type: Bug
          Components: fmj-media
    Affects Versions: current
         Environment: Debian unstable 64bit

$ java -version
java version "1.7.0_03"
OpenJDK Runtime Environment (IcedTea7 2.1.3) (7u3-2.1.3-1)
OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode)

            Reporter: akuckart


I have an old webcam attached to the computer but the list of cameras in Jitsi is empty.

The Gnome application "Cheese" has no problem with it.

This was briefly discussed on the mailing list on 2012-06-26 and 2012-06-26 (but I forgot to create an issue then :-)

Lyubomir Marinov then wrote:
>>        fmt.pix.pixelformat     : 0x47504a50 [PJPG]
> It sounds like Jitsi does not currently support the PJPG video4linux2
> pixel format. Could you please open an issue to track its development?


--
$ v4l-info

### v4l2 device info [/dev/video0] ###
general info
    VIDIOC_QUERYCAP
        driver                  : "pac7311"
        card                    : "VGA Single Chip"
        bus_info                : "usb-0000:00:13.1-1"
        version                 : 3.2.35
        capabilities            : 0x5000001 [VIDEO_CAPTURE,READWRITE,STREAMING]

standards

inputs
    VIDIOC_ENUMINPUT(0)
        index                   : 0
        name                    : "pac7311"
        type                    : CAMERA
        audioset                : 0
        tuner                   : 0
        std                     : 0x0 []
        status                  : 0x0 []

video capture
    VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE)
        index                   : 0
        type                    : VIDEO_CAPTURE
        flags                   : 1
        description             : "PJPG"
        pixelformat             : 0x47504a50 [PJPG]
    VIDIOC_G_FMT(VIDEO_CAPTURE)
        type                    : VIDEO_CAPTURE
        fmt.pix.width           : 640
        fmt.pix.height          : 480
        fmt.pix.pixelformat     : 0x47504a50 [PJPG]
        fmt.pix.field           : NONE
        fmt.pix.bytesperline    : 640
        fmt.pix.sizeimage       : 115790
        fmt.pix.colorspace      : JPEG
        fmt.pix.priv            : 0

controls
    VIDIOC_QUERYCTRL(BASE+1)
        id                      : 9963777
        type                    : INTEGER
        name                    : "Contrast"
        minimum                 : 0
        maximum                 : 255
        step                    : 1
        default_value           : 127
        flags                   : 0
    VIDIOC_QUERYCTRL(BASE+17)
        id                      : 9963793
        type                    : INTEGER
        name                    : "Exposure"
        minimum                 : 0
        maximum                 : 255
        step                    : 1
        default_value           : 16
        flags                   : 0
    VIDIOC_QUERYCTRL(BASE+18)
        id                      : 9963794
        type                    : BOOLEAN
        name                    : "Auto Gain"
        minimum                 : 0
        maximum                 : 1
        step                    : 1
        default_value           : 1
        flags                   : 0
    VIDIOC_QUERYCTRL(BASE+19)
        id                      : 9963795
        type                    : INTEGER
        name                    : "Gain"
        minimum                 : 0
        maximum                 : 255
        step                    : 1
        default_value           : 127
        flags                   : 0
    VIDIOC_QUERYCTRL(BASE+20)
        id                      : 9963796
        type                    : BOOLEAN
        name                    : "Mirror"
        minimum                 : 0
        maximum                 : 1
        step                    : 1
        default_value           : 0
        flags                   : 0
    VIDIOC_QUERYCTRL(BASE+21)
        id                      : 9963797
        type                    : BOOLEAN
        name                    : "Vflip"
        minimum                 : 0
        maximum                 : 1
        step                    : 1
        default_value           : 0
        flags                   : 0


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