[gstreamer-bugs] [Bug 315383] New: gst-launch shouldn't run broken pipelines

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 http://bugzilla.gnome.org/show_bug.cgi?id=315383
 GStreamer | don't know | Ver: HEAD CVS

           Summary: gst-launch shouldn't run broken pipelines
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: High
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: chris at gnome-de.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
                CC: all-bugs at bugzilla.gnome.org


gst-launch tries to run pipelines with missing elements. I think this might be
diserable in some cases, but in most of the cases it isn't. For instance, if you
invoke gst-launch-ext or build a pipeline to convert audio files, you usually
can't achieve what you want if you lack a pipeline element. With the current
behavior, gst-launch won't be used for Nautilus audio file preview (bug 111511),
since some distros don't ship MP3 decoder elements and just giving crippled
output with no feedback is no good.
I think, gst-launch should just fail and return an error message if parts of the
pipeline are not existant or can't be setup. We can still provide a "--force"
parameter to revert to the former behavior.

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