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Bug 566120 - gst_value_set_fraction: assertion `denominator != 0' failed
gst_value_set_fraction: assertion `denominator != 0' failed
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
0.10.20
Other Linux
: Normal normal
: 0.10.11
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2008-12-31 12:07 UTC by matteo.landi
Modified: 2009-01-02 11:56 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description matteo.landi 2008-12-31 12:07:19 UTC
Sourcing from the webcam even thought i get the error in the title, my application seems to works properly.

Version of packages:
Calculating dependencies... done!
[ebuild   R   ] media-libs/gstreamer-0.10.20  USE="nls -debug -test" 0 kB
[ebuild   R   ] dev-lang/python-2.5.2-r7  USE="berkdb gdbm ipv6 ncurses readline ssl threads -build -doc -examples -sqlite -tk -ucs2 -wininst" 0 kB
[ebuild   R   ] media-libs/gst-plugins-base-0.10.20  USE="nls -debug" 0 kB
[ebuild   R   ] dev-python/gst-python-0.10.12  USE="-examples" 0 kB
[ebuild   R   ] media-libs/gst-plugins-good-0.10.8-r1  USE="-debug" 0 kB
[ebuild   R   ] media-plugins/gst-plugins-x-0.10.20  0 kB
[ebuild   R   ] media-plugins/gst-plugins-ffmpeg-0.10.5  0 kB
[ebuild   R   ] media-plugins/gst-plugins-v4l2-0.10.8  0 kB
[ebuild   R   ] media-plugins/gst-plugins-xvideo-0.10.20  0 kB

backtrace:
(gdb) bt full
  • #0 raise
    from /lib/libc.so.6
  • #1 abort
    from /lib/libc.so.6
  • #2 g_logv
    from /usr/lib/libglib-2.0.so.0
  • #3 g_log
    from /usr/lib/libglib-2.0.so.0
  • #4 gst_v4l2src_set_capture
    at v4l2src_calls.c line 1117
  • #5 gst_v4l2src_set_caps
    at gstv4l2src.c line 868
  • #6 gst_pad_set_caps
    from /usr/lib/libgstreamer-0.10.so.0
  • #7 gst_base_src_default_negotiate
    from /usr/lib/libgstbase-0.10.so.0
  • #8 gst_base_src_start
    from /usr/lib/libgstbase-0.10.so.0
  • #9 gst_base_src_activate_push
    from /usr/lib/libgstbase-0.10.so.0
  • #10 gst_pad_activate_push
    from /usr/lib/libgstreamer-0.10.so.0
  • #11 gst_pad_set_active
    from /usr/lib/libgstreamer-0.10.so.0
  • #12 activate_pads
    from /usr/lib/libgstreamer-0.10.so.0
  • #13 gst_iterator_fold
    from /usr/lib/libgstreamer-0.10.so.0
  • #14 iterator_activate_fold_with_resync
    from /usr/lib/libgstreamer-0.10.so.0
  • #15 gst_element_pads_activate
    from /usr/lib/libgstreamer-0.10.so.0
  • #16 gst_element_change_state_func
    from /usr/lib/libgstreamer-0.10.so.0
  • #17 gst_base_src_change_state
    from /usr/lib/libgstbase-0.10.so.0
  • #18 gst_element_change_state
    from /usr/lib/libgstreamer-0.10.so.0
  • #19 gst_element_set_state_func
    from /usr/lib/libgstreamer-0.10.so.0
  • #20 gst_bin_change_state_func
    from /usr/lib/libgstreamer-0.10.so.0
  • #21 gst_pipeline_change_state
    from /usr/lib/libgstreamer-0.10.so.0
  • #22 gst_element_change_state
    from /usr/lib/libgstreamer-0.10.so.0
  • #23 gst_element_change_state
    from /usr/lib/libgstreamer-0.10.so.0
  • #24 gst_element_set_state_func
    from /usr/lib/libgstreamer-0.10.so.0
  • #25 _wrap_gst_element_set_state
    from /usr/lib64/python2.5/site-packages/gst-0.10/gst/_gst.so
  • #26 PyEval_EvalFrameEx
    from /usr/lib/libpython2.5.so.1.0
  • #27 PyEval_EvalCodeEx
    from /usr/lib/libpython2.5.so.1.0
  • #28 function_call
    from /usr/lib/libpython2.5.so.1.0
  • #29 PyObject_Call
    from /usr/lib/libpython2.5.so.1.0
  • #30 instancemethod_call
    from /usr/lib/libpython2.5.so.1.0
  • #31 PyObject_Call
    from /usr/lib/libpython2.5.so.1.0
  • #32 PyEval_CallObjectWithKeywords
    from /usr/lib/libpython2.5.so.1.0
  • #33 ??
    from /usr/lib64/python2.5/site-packages/gtk-2.0/gobject/_gobject.so
  • #34 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #35 ??
    from /usr/lib/libgobject-2.0.so.0
  • #36 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0
  • #37 g_signal_emit
    from /usr/lib/libgobject-2.0.so.0
  • #38 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #39 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #40 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #41 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #42 ??
    from /usr/lib/libgobject-2.0.so.0
  • #43 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0
  • #44 g_signal_emit
    from /usr/lib/libgobject-2.0.so.0
  • #45 gtk_widget_realize
    from /usr/lib/libgtk-x11-2.0.so.0
  • #46 gtk_widget_map
    from /usr/lib/libgtk-x11-2.0.so.0
  • #47 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #48 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #49 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #50 ??
    from /usr/lib/libgobject-2.0.so.0
  • #51 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0
  • #52 g_signal_emit
    from /usr/lib/libgobject-2.0.so.0
  • #53 gtk_widget_map
    from /usr/lib/libgtk-x11-2.0.so.0
  • #54 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #55 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #56 ??
    from /usr/lib/libgobject-2.0.so.0
  • #57 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0
  • #58 g_signal_emit
    from /usr/lib/libgobject-2.0.so.0
  • #59 gtk_widget_map
    from /usr/lib/libgtk-x11-2.0.so.0
  • #60 ??
    from /usr/lib/libgtk-x11-2.0.so.0
  • #61 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #62 ??
    from /usr/lib/libgobject-2.0.so.0
  • #63 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0
  • #64 g_signal_emit
    from /usr/lib/libgobject-2.0.so.0
  • #65 gtk_widget_show
    from /usr/lib/libgtk-x11-2.0.so.0
  • #66 ??
    from /usr/lib64/python2.5/site-packages/gtk-2.0/gtk/_gtk.so
  • #67 PyEval_EvalFrameEx
    from /usr/lib/libpython2.5.so.1.0
  • #68 PyEval_EvalCodeEx
    from /usr/lib/libpython2.5.so.1.0
  • #69 function_call
    from /usr/lib/libpython2.5.so.1.0
  • #70 PyObject_Call
    from /usr/lib/libpython2.5.so.1.0
  • #71 instancemethod_call
    from /usr/lib/libpython2.5.so.1.0
  • #72 PyObject_Call
    from /usr/lib/libpython2.5.so.1.0
  • #73 PyEval_CallObjectWithKeywords
    from /usr/lib/libpython2.5.so.1.0
  • #74 PyInstance_New
    from /usr/lib/libpython2.5.so.1.0
  • #75 PyObject_Call
    from /usr/lib/libpython2.5.so.1.0
  • #76 PyEval_EvalFrameEx
    from /usr/lib/libpython2.5.so.1.0
  • #77 PyEval_EvalCodeEx
    from /usr/lib/libpython2.5.so.1.0
  • #78 PyEval_EvalCode
    from /usr/lib/libpython2.5.so.1.0
  • #79 run_mod
    from /usr/lib/libpython2.5.so.1.0
  • #80 PyRun_FileExFlags
    from /usr/lib/libpython2.5.so.1.0
  • #81 PyRun_SimpleFileExFlags
    from /usr/lib/libpython2.5.so.1.0
  • #82 Py_Main
    from /usr/lib/libpython2.5.so.1.0
  • #83 __libc_start_main
    from /lib/libc.so.6
  • #84 _start

hope it could helps
M@
Comment 1 Wim Taymans 2009-01-02 10:36:18 UTC
this should be fixed in gst-plugins-good 0.10.11 with this commit:

2008-08-13  Edward Hervey  <edward.hervey@collabora.co.uk>

        * sys/v4l2/gstv4l2src.c: (gst_v4l2src_query):
        Properly set the maximum latency value, in the same way it is done in
        v4lsrc.
        * sys/v4l2/v4l2src_calls.c:
        Simplify fraction equality check, no need to use GValues for this.

The reason is that the driver did not return a valid frame period for us, which was not handled well enough.
Comment 2 matteo.landi 2009-01-02 11:56:53 UTC
Thanks for the answer!
M@