[gst-devel] Need Help to run my plugin

[Stefan Kost]

Tejas Bhanabhagavanwala schrieb:
> Hi All,
>            I have installed gstreamer-0.10.25 and
> gstreamer-base-plugins-0.10.25. And i have tested following video
> testsrc plugins.
>  
>  
> gst-launch-0.10 -v videotestsrc ! ffmpegcolorspace ! ximagesink and it
> is working fine.
>  
>  
>             I have develop following 2 plugins and i want to get display
> from my video decoder. I am using following pipe line.
>  
>  
> gst-launch-0.10 filesrc location=~/test.m4v ! yuv ! mpeg4dec !
> ffmpegcolorspace ! ximagesink


what about using mpeg4videoparse instead of your own "yuv" element?
Stefan

>  
>             Here yuv plugin will read raw data from filesrc and push raw
> data to mpeg4decelement. Mpeg4dec element decode raw data and genearte
> yuv data and same will be pushed to ffmpegcolorspace element. When i run
> that pipeline it gives me following error.
>  
> space
> Setting pipeline to PAUSED ...
> Width = 320 Height = 240
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> (MPEG4DEC) Memory is not allocated
>  !!Caught SIGSEGV accessing address 0x10
> Killed
>                     My plugons capabilities are as followed.
> *[    ] gst-inspect-0.10 yuv is as followed.*
>  
> Factory Details:
>   Long name:    yuv
>   Class:        FIXME:Generic
>   Description:  FIXME:Generic Template Element
>   Author(s):    Neelam Gaikwad <<user at hostname.org>>
>   Rank:         none (0)
>  
> Plugin Details:
>   Name:                 yuv
>   Description:          Template yuv
>   Filename:            
> /home/neelam/.gstreamer-0.10/plugins/lib/gstreamer-0.10/libgstyuv.so
>   Version:              0.10.0.1
>   License:              LGPL
>   Source module:        gst-plugin
>   Binary package:       GStreamer
>   Origin URL:           http://gstreamer.net/
>  
> GObject
>  +----GstObject
>        +----GstElement
>              +----Gstyuv
>  
> Pad Templates:
>   SINK template: 'sink'
>     Availability: Always
>     Capabilities:
>       ANY
>  
>   SRC template: 'src'
>     Availability: Always
>     Capabilities:
>       ANY
>  
> 
> Element Flags:
>   no flags set
>  
> Element Implementation:
>   Has change_state() function: 0x111600
>   Has custom save_thyself() function: gst_element_save_thyself
>   Has custom restore_thyself() function: gst_element_restore_thyself
>  
> Element has no clocking capabilities.
> Element has no indexing capabilities.
> Element has no URI handling capabilities.
>  
> Pads:
>   SRC: 'src'
>     Implementation:
>     Pad Template: 'src'
>   SINK: 'sink'
>     Implementation:
>       Has chainfunc(): gst_yuv_chain
>     Pad Template: 'sink'
>  
> Element Properties:
>   name                : The name of the object
>                         flags: readable, writable
>                         String. Default: null Current: "yuv0"
>   silent              : Produce verbose output ?
>                         flags: readable, writable
>                         Boolean. Default: false Current: false
>  
>  
> 
> *[    ] gst-inspect-0.10 mpeg4dec is as followed.*
> ** 
> Factory Details:
>   Long name:    mpeg4dec
>   Class:        FIXME:Generic
>   Description:  FIXME:Generic Template Element
>   Author(s):    Neelam Gaikwad <<user at hostname.org>>
>   Rank:         none (0)
>  
> Plugin Details:
>   Name:                 mpeg4dec
>   Description:          Template mpeg4dec
>   Filename:            
> /home/neelam/.gstreamer-0.10/plugins/lib/gstreamer-0.10/libgstmpeg4dec.so
>   Version:              0.10.0.1
>   License:              LGPL
>   Source module:        gst-plugin
>   Binary package:       GStreamer
>   Origin URL:           http://gstreamer.net/
>  
> GObject
>  +----GstObject
>        +----GstElement
>              +----Gstmpeg4dec
>  
> Pad Templates:
>   SINK template: 'sink'
>     Availability: Always
>     Capabilities:
>       ANY
>  
>   SRC template: 'src'
>     Availability: Always
>     Capabilities:
>       video/x-raw-yuv
>                  format: { YV12 }
>               framerate: [ 0/1, 2147483647/1 ]
>                   width: [ 1, 2147483647 ]
>                  height: [ 1, 2147483647 ]
>  
> 
> Element Flags:
>   no flags set
>  
> Element Implementation:
>   Has change_state() function: 0xc97240
>   Has custom save_thyself() function: gst_element_save_thyself
>   Has custom restore_thyself() function: gst_element_restore_thyself
>  
> Element has no clocking capabilities.
> Element has no indexing capabilities.
> Element has no URI handling capabilities.
>  
> Pads:
>   SRC: 'src'
>     Implementation:
>     Pad Template: 'src'
>   SINK: 'sink'
>     Implementation:
>       Has chainfunc(): gst_mpeg4dec_chain
>     Pad Template: 'sink'
>  
> Element Properties:
>   name                : The name of the object
>                         flags: readable, writable
>                         String. Default: null Current: "mpeg4dec0"
>   silent              : Produce verbose output ?
>                         flags: readable, writable
>                         Boolean. Default: false Current: false
>                        
>  
>                     Please help me to resolve this issue. If i am wrong
> at any place please correct me. I am using by default setcaps and
> getcaps function which we are generating from gst-template-master source
> code.
>  
>  
> -Thanks In Advance,
> Tejas.
> 
> 
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