[Bug 729123] New: GstSdp.SDPMessage.parse_buffer needs a guint8* + annotation corrections

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=729123
  GStreamer | gst-python | 1.2.4

           Summary: GstSdp.SDPMessage.parse_buffer needs a guint8* +
                    annotation corrections
    Classification: Platform
           Product: GStreamer
           Version: 1.2.4
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-python
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: adrien.aubourg at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Hi,

To generated a sdpmessage from a string, one use in C the
gst_sdp_message_parse_buffer function:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstsdpmessage.html#gst-sdp-message-parse-buffer

The Python introspection hence ask for a Python int. In addition, instead of
returning the SDPMessage, it needs to be passed as an argument. In conclusion,
the parse_buffer function cannot be called at all.

In addition, creating a SDPMessage object can be done via GstSdp.SDPMessage()
or via GstSdp.SDPMessage.new(). With the former, segfault may appear when
calling SDPMessage methods.

More generally, the GstSdp library may need an annotation update to be really
usable with Python bindings. It may be interesting to do it before the arrival
of webrtc element in gstreamer.

I'm willing to propose patches, but I can't guarantee their quality nor their
arrivals.

Adrien

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