[gstreamer-bugs] [Bug 609046] New: basetransform now ignores suggestions from capsfilter

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=609046
  GStreamer | gstreamer (core) | git

           Summary: basetransform now ignores suggestions from capsfilter
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: tester at tester.ca
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


Commit 743cde4b requires a valid size for a suggestion to be used in pad alloc.
so if I have a pipeline like "v4l2src ! capsfilter ! ...", I can't control the
camera's resolution by just changing the caps in the capsfilter anymore (since
basetransform will ignore it since it doesn't contain a size). So this is a
regression.

That said, I'm not sure that reverting that patch is a smart idea. We should
just drop the pretense that pad allocation is the right place to do upstream
caps renegotiation and instead add a "renegotiate" upstream event, but I guess
that's post-release work.

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