[gst-devel] Simple Video Sink Plugin

[Patrick Holthaus]

Hey!
Thanks to everyone who provided me tips & tricks. Finally my plugin can be 
load by GStreamer and is listed in the gst-inspect output.

Nontheless gst-inspect dies with a segmentation fault on listing the 
properties of my element. I have no clue why. Any help is appreciated. I 
attached the output of gdb and my source file.

Thanks again,
Patrick
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$ gdb /usr/bin/gst-inspect-0.10
[..]
(gdb) set args javasink
(gdb) run
Starting program: /usr/bin/gst-inspect-0.10 javasink
Failed to read a valid object file image from memory.
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1213105696 (LWP 5683)]
Factory Details:
  Long name:    Video sink
  Class:        Sink/Video
  Description:  Java Sink for Gstreamer
  Author(s):    Patrick Holthaus <pholthau at techfak.uni-bielefeld.de>
  Rank:         none (0)

Plugin Details:
  Name:                 javasink
  Description:          Java Sink
  Filename:             /home/pholthau/.gstreamer-0.10/plugins/libgstjavasink.so
  Version:              0.10.0.1
  License:              LGPL
  Source module:        gst-plugin
  Binary package:       none
  Origin URL:           http://www.uni-bielefeld.de/

GObject
 +----GstObject
       +----GstElement
             +----GstBaseSink
                   +----GstVideoSink
                         +----GstJavaSink

Pad Templates:
  SINK template: 'sink'
    Availability: Always
    Capabilities:
      video/x-raw-rgb
              framerate: [ 0/1, 2147483647/1 ]
                  width: [ 1, 2147483647 ]
                 height: [ 1, 2147483647 ]


Element Flags:
  no flags set

Element Implementation:
  No loopfunc(), must be chain-based or not configured yet
  Has change_state() function: gst_base_sink_change_state
  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.

Pads:
  SINK: 'sink'
    Implementation:
      Has chainfunc(): gst_javasink_chain
      Has custom eventfunc(): gst_base_sink_event
      Has bufferallocfunc(): gst_base_sink_pad_buffer_alloc
    Pad Template: 'sink'

Element Properties:
  name                : The name of the object
                        flags: readable, writable
                        String. Default: null Current: "javasink0"
  preroll-queue-len   : Number of buffers to queue during preroll
                        flags: readable, writable
                        Unsigned Integer. Range: 0 - 4294967295 Default: 0 Current: 0
  sync                : Sync on the clock
                        flags: readable, writable
                        Boolean. Default: true Current: true
  max-lateness        : Maximum number of nanoseconds that a buffer can be late before it is dropped (-1 unlimited)
                        flags: readable, writable
                        Integer64. Range: -1 - 9223372036854775807 Default: -1 Current: 20000000
  qos                 : Generate QoS events upstream
                        flags: readable, writable
                        Boolean. Default: false Current: true
  env                 : The Java Environment

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1213105696 (LWP 5683)]
0xb7f29004 in ?? ()
(gdb) info threads
* 1 Thread -1213105696 (LWP 5683)  0xb7f29004 in ?? ()
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