[Bug 715166] New: Pipeline is not linked sometimes when using PNG images

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=715166
  GStreamer | gst-editing-services | git

           Summary: Pipeline is not linked sometimes when using PNG images
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-editing-services
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: lubosz at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=261446)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=261446)
Minimal test that causes the error sometimes

pngparse causes following error in 1/3 cases

ERROR from element pngparse1: GStreamer encountered a general stream error.
Debugging info: gstbaseparse.c(3188): gst_base_parse_loop ():
/GESPipeline:gespipeline0/GESTimeline:gestimeline0/GESVideoTrack:gesvideotrack0/GnlComposition:gnlcomposition0/GnlSource:gnlsource0/GstBin:videosrcbin/GstBin:still-image-bin/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin3/GstPngParse:pngparse1:
streaming stopped, reason not-linked

Using GStreamer 1.2.1, gnonlin, gst-editing-services from git

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