[gst-devel] gst_bus_source_dispatch:assertion message!=NULL failed

Tim Müller t.i.m at zen.co.uk
Mon Sep 10 12:14:25 CEST 2007

On Mon, 2007-09-10 at 01:30 -0400, pritesh wrote:

> i have a mp3 player app runninng on arm board
> whenever i click next button to play next song in playlist
> this message shows up , and sometimes the app crashes
> " gst_bus_source_dispatch:assertion message ! = NULL FAILED "
> but when i let the app play all songs in playlist by itself 
> this message does not come and app works well

Set the environment variable G_DEBUG to 'fatal_warnings' or pass the
--gst-fatal-warnings command line option to your application (and make
sure it's passed to gst_init()).

Then run your program in a debugger and reproduce the warning.  It will
now abort at the warning and you can look at the stack trace and figure
out where exactly it comes from and what causes it.  If you can't run
your code in a debugger, you might still be able to make it dump to a
core file and inspect that later.


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