[Bug 778389] New: imagefreeze can return erroneous results for an accept caps query

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=778389

            Bug ID: 778389
           Summary: imagefreeze can return erroneous results for an accept
                    caps query
    Classification: Platform
           Product: GStreamer
           Version: 1.11.1
                OS: Mac OS
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: socialmediamaster9000 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Description:

videoflip can transform tags, changing width and height. An imagefreeze
downstream will receive an ACCEPT_CAPS query but since imagefreeze caches its
caps negotiated during a prior phase, it will claim that it cannot accept the
new width and height.

The following command exhibits the bug:

gst-launch-1.0 -vm videotestsrc ! taginject tags=image-orientation=rotate-90 !
videoflip video-direction=auto ! imagefreeze ! fakesink

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