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[Octave-bug-tracker] [bug #43897] image-acquisition freezes when trying


From: Greg
Subject: [Octave-bug-tracker] [bug #43897] image-acquisition freezes when trying getsnapshot(obj);
Date: Sat, 27 Dec 2014 20:28:50 +0000
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:34.0) Gecko/20100101 Firefox/34.0

Follow-up Comment #2, bug #43897 (project octave):

Thank You for your quick response!

The files have been uploaded with my report according to the wiki. Please look
at files #32721:

http://savannah.gnu.org/bugs/download.php?file_id=32721

and #32722:

http://savannah.gnu.org/bugs/download.php?file_id=32722


My kernel is 3.8.13-bone63

Here is the output of v4l2-ctl:

address@hidden:~$ v4l2-ctl -w --list-devices
UVC Camera (046d:0802) (usb-musb-hdrc.1.auto-1):
        /dev/video0

address@hidden:~$ v4l2-ctl -w -D
Driver Info (using libv4l2):
        Driver name   : uvcvideo
        Card type     : UVC Camera (046d:0802)
        Bus info      : usb-musb-hdrc.1.auto-1
        Driver version: 3.8.13
        Capabilities  : 0x85000001
                Video Capture
                Read/Write
                Streaming
                Device Capabilities
        Device Caps   : 0x05000001
                Video Capture
                Read/Write
                Streaming
address@hidden:~$ v4l2-ctl -w -L
                     brightness (int)    : min=0 max=255 step=1 default=128
value=128
                       contrast (int)    : min=0 max=255 step=1 default=32
value=32
                     saturation (int)    : min=0 max=255 step=1 default=38
value=38
 white_balance_temperature_auto (bool)   : default=1 value=1
                           gain (int)    : min=0 max=255 step=1 default=0
value=0
           power_line_frequency (menu)   : min=0 max=2 default=2 value=2
                                0: Disabled
                                1: 50 Hz
                                2: 60 Hz
      white_balance_temperature (int)    : min=0 max=10000 step=10
default=4000 value=4000 flags=inactive
                      sharpness (int)    : min=0 max=255 step=1 default=20
value=20
         backlight_compensation (int)    : min=0 max=1 step=1 default=1
value=1
                  exposure_auto (menu)   : min=0 max=3 default=3 value=3
                                1: Manual Mode
                                3: Aperture Priority Mode
              exposure_absolute (int)    : min=1 max=10000 step=1 default=166
value=166 flags=inactive
         exposure_auto_priority (bool)   : default=0 value=1
address@hidden:~$ v4l2-ctl -w -n
ioctl: VIDIOC_ENUMINPUT
        Input       : 0
        Name        : Camera 1
        Type        : 0x00000002
        Audioset    : 0x00000000
        Tuner       : 0x00000000
        Standard    : 0x0000000000000000 ()
        Status      : 0x00000000 (ok)
        Capabilities: 0x00000000 (not defined)
address@hidden:~$ v4l2-ctl -w --list-formats
ioctl: VIDIOC_ENUM_FMT
        Index       : 0
        Type        : Video Capture
        Pixel Format: 'YUYV'
        Name        : YUV 4:2:2 (YUYV)

        Index       : 1
        Type        : Video Capture
        Pixel Format: 'MJPG' (compressed)
        Name        : MJPEG

        Index       : 2
        Type        : Video Capture
        Pixel Format: 'RGB3' (emulated)
        Name        : RGB3

        Index       : 3
        Type        : Video Capture
        Pixel Format: 'BGR3' (emulated)
        Name        : BGR3

        Index       : 4
        Type        : Video Capture
        Pixel Format: 'YU12' (emulated)
        Name        : YU12

        Index       : 5
        Type        : Video Capture
        Pixel Format: 'YV12' (emulated)
        Name        : YV12


I don't have another pc to test these, and my ubuntu VM which I tried to
config runs so slow its unusable. also, ffmpeg was removed for Ubuntu 14.04
and for the last 1 hour I've tried installing it from different tutorials with
no luck. Isn't there a more out-of-the-box method to test video recording?


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