[Bug 796806] New: Problems deserializing stream-start events

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796806

            Bug ID: 796806
           Summary: Problems deserializing stream-start events
    Classification: Platform
           Product: GStreamer
           Version: unspecified
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: slomo at coaxion.net
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

> 0:00:07.399046676 12893 0x7f6d700040a0 DEBUG            rtpgstdepay gstrtpgstdepay.c:290:read_event:<depayloader> parsing event GstEventStreamStart, stream-id=(string)d9486e4ba1afa28e746e6a227057a1bbffd29ae47871dbe2c22d900098420579, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)7, stream=(GstStream)"\(GstStream\)\ stream0";
> 0:00:07.399060467 12893 0x7f6d700040a0 WARN               structure gststructure.c:1974:gst_structure_parse_field: failed to parse value stream=(GstStream)(GstStream) stream0eam0";
> 0:00:07.399073720 12893 0x7f6d700040a0 WARN               structure gststructure.c:2042:priv_gst_structure_parse_fields: Failed to parse field, r=stream=(GstStream)(GstStream) stream0eam0";


There are multiple problems here:


a) There's the stream in here now, which is not serializable. In older versions
of GStreamer this was not a problem and as such it's arguably a backwards
compatibility breakage

Not sure what we can do about that, other than letting deserialization skip
over fields that it can't deserialize... which might have other problems if
they are fields that are actually expected to be there (and then other code
dereferences a NULL later)


b) Trying to deserialize the stream field just completely falls apart, not sure
what the parsing code tries to do there at all. This might also affect other
structures

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