[gst-devel] why this pipeline doesnot work

[Jerry Tan]

Jerry tan wrote:
> hi, guys,
>
> gst-launch videotestsrc ! ximagesink  works on my system,
> but gst-launch videotestsrc !* *ffmpegcolorspace* ! * ximagesink does 
> not work
>
> it tells me that
> ERROR: Pipeline doesn't want to pause.
> ERROR: from element /pipeline0/videotestsrc0: Could not negotiate format
> Additional debug info:
> gstbasesrc.c(1790): gst_base_src_start (): /pipeline0/videotestsrc0:
> Check your filtered caps, if any
>
>
> how could I fix this problem?
> I am running it on sunray client
>
>
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Here is my Xserver info
xdpyinfo > /tmp/x.log

name of display:    :2.0
version number:    11.0
vendor string:    Sun Microsystems, Inc.
vendor release number:    6620
maximum request size:  262140 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, MSBFirst, 32
image byte order:    MSBFirst
number of supported pixmap formats:    3
supported pixmap formats:
    depth 1, bits_per_pixel 1, 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 254
focus:  window 0x805dd2, revert to Parent
number of extensions:    33
    AccessX
    Adobe-DPS-Extension
    DAMAGE
    DOUBLE-BUFFER
    DPMS
    DPSExtension
    Extended-Visual-Information
    FBPM
    GLX
    LBX
    MIT-SCREEN-SAVER
    MIT-SHM
    MIT-SUNDRY-NONSTANDARD
    Multi-Buffering
    RECORD
    SECURITY
    SHAPE
    SUN_ALLPLANES
    SUN_DGA
    SUN_OVL
    SUN_SME
    SYNC
    SolarisIA
    TOG-CUP
    X-Resource
    XC-APPGROUP
    XC-MISC
    XEVIE
    XFIXES
    XIE
    XInputDeviceEvents
    XInputExtension
    XTEST
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1280x1024 pixels (361x289 millimeters)
  resolution:    90x90 dots per inch
  depths (3):    1, 24, 32
  root window id:    0x2e
  depth of root window:    24 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x22
  default number of colormap cells:    256
  preallocated pixels:    black 0, white 16777215
  options:    backing-store YES, save-unders YES
  largest cursor:    64x64
  current input event mask:    0xfa2033
    KeyPressMask             KeyReleaseMask           
EnterWindowMask         
    LeaveWindowMask          ButtonMotionMask         
StructureNotifyMask     
    SubstructureNotifyMask   SubstructureRedirectMask 
FocusChangeMask         
    PropertyChangeMask       ColormapChangeMask      
  number of visuals:    1
  default visual id:  0x20
  visual:
    visual id:    0x20
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff, 0xff00, 0xff0000
    significant bits in color specification:    8 bits