[Kwintv] V4L plugin status

Stefan Hellwig kwintv@mail.kde.org
Wed, 23 Oct 2002 19:58:20 +0200


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Hi!

On Wednesday 23 October 2002 02:48, George Staikos wrote:
>     Actually FYI, I had some severe problems in the code which I
> optimised away tonight.  CPU usage dropped from 60+% to 10% for the
> grabber thread on my machine. [...]

Yes, it looks much better now :-). Maybe it also helped that I did a fresh=
=20
configure & compile this time?... Anyways, it is working quite well.=20
Scrolling text still has some "interlacing" problems but audio and video=20
are now in sync and QtVision does not take up that much CPU time anymore.=20
Good job! :-)

I will append my xdpyinfo output nevertheless (yes, I know, I should=20
upgrade my X server... :-). My display is an 18" LCD, BTW, but I don't=20
think this makes any difference... I will also append a short section of=20
my QtVision console output because I get a warning message about QtVision=20
and kv4lsetup not agreeing on display depth. kv4lsetup is setuid root on=20
my system but it is a very old version..

Regards, Stefan.
=2D-=20
The Jenna von Oy WebSite - http://www.jennavonoy.com/
Run by fans, for fans, in cooperation with Jenna von Oy!

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name of display:    :0.0
version number:    11.0
vendor string:    The XFree86 Project, Inc
vendor release number:    40100000
XFree86 version: 4.1.0
maximum request size:  4194300 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 4, bits_per_pixel 8, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
    depth 15, bits_per_pixel 16, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
    depth 24, bits_per_pixel 32, scanline_pad 32
    depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x2400004, revert to PointerRoot
number of extensions:    27
    BIG-REQUESTS
    DPMS
    Extended-Visual-Information
    FontCache
    GLX
    LBX
    MIT-SCREEN-SAVER
    MIT-SHM
    MIT-SUNDRY-NONSTANDARD
    NV-CONTROL
    NV-GLX
    NVIDIA-GLX
    RENDER
    SECURITY
    SHAPE
    SYNC
    TOG-CUP
    XC-APPGROUP
    XC-MISC
    XFree86-Bigfont
    XFree86-DGA
    XFree86-Misc
    XFree86-VidModeExtension
    XInputExtension
    XKEYBOARD
    XTEST
    XVideo
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1280x1024 pixels (361x292 millimeters)
  resolution:    90x89 dots per inch
  depths (7):    24, 1, 4, 8, 15, 16, 32
  root window id:    0x70
  depth of root window:    24 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x20
  default number of colormap cells:    256
  preallocated pixels:    black 0, white 16777215
  options:    backing-store NO, save-unders NO
  largest cursor:    32x32
  current input event mask:    0xd84031
    KeyPressMask             EnterWindowMask          LeaveWindowMask          
    KeymapStateMask          SubstructureNotifyMask   SubstructureRedirectMask 
    PropertyChangeMask       ColormapChangeMask       
  number of visuals:    16
  default visual id:  0x21
  visual:
    visual id:    0x21
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x22
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x23
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x24
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x25
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x26
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x27
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x28
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x29
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2a
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2b
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2c
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2d
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2e
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x2f
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x30
    class:    DirectColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits

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qtvision: Grabber Name: BT878(Hauppauge (bt878))
qtvision: Type: 235
qtvision: Input Channels: 4
qtvision: minw=48, minh=32, maxw=924, maxh=576
qtvision:   Supports: capture to memory
qtvision:   Supports: video overlay
qtvision:   Supports: clipping
qtvision:   Supports: scaling
qtvision:   Requires: overwriting frame buffer
qtvision: Channel 1: Television
qtvision: TV - tuner(1)  - audio
qtvision: Channel 2: Composite1
qtvision: Camera - audio
qtvision: Channel 3: S-Video
qtvision: Camera - audio
qtvision: Channel 4: Composite3
qtvision: Camera - audio
qtvision: V4L and QtVision disagree about the depth of the display.  Is kv4lsetup installed suid root?
qtvision: V4L: Success? true


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