[Bug 722289] New: typefind: Doing typefinding even if upstream provides caps

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=722289
  GStreamer | gstreamer (core) | unspecified

           Summary: typefind: Doing typefinding even if upstream provides
                    caps
    Classification: Platform
           Product: GStreamer
           Version: unspecified
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: slomo at coaxion.net
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Correct case:

> gst-launch-1.0 filesrc location=/dev/zero num-buffers=1 ! "audio/mpeg" ! typefind ! fakesink -v
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = audio/mpeg
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:src: caps = audio/mpeg
> /GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps = audio/mpeg
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:sink: caps = audio/mpeg

Broken case:

> gst-launch-1.0 filesrc location=test.webm ! "audio/mpeg" ! typefind ! fakesink -v
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = audio/mpeg
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:src: caps = audio/mpeg
> /GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps = audio/mpeg
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:sink: caps = audio/mpeg
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:src: caps = video/webm
> /GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps = video/webm


Seems to be a race condition in typefind.

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