[Bug 727702] New: gstreamer: non writable output buffer in do_transform_frame

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727702
  GStreamer | gstreamer (core) | 1.x

           Summary: gstreamer: non writable output buffer in
                    do_transform_frame
    Classification: Platform
           Product: GStreamer
           Version: 1.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: ticapix at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Hi,

I have a issue with Gstreamer 1.0 using the GstVideo.VideoFilter class.

The buffer of the outframe is not writable.

How data is supposed to be written back on the frame ?

(afaiu, do_tranform_frame_ip should not be used to modify buffer, but only to
do read-only operation, right ?)

Sample code attached, used with python2

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