iOS: AVIGILON TVCC camera compatibility issue

[Sebastian Dröge]

On Sa, 2016-01-09 at 19:41 +0100, Elio Francesconi wrote:
> Hi all,
> I’m developing a simple rtsp client application to connect my app
> with several different TVCC cameras and I’m facing issues with h264
> decoder (vtdec Video ToolBox Decoder) and my Avigilon camera.
> Basically I’ve tested compatibility with Tutorial4 that uses rtpbin
> pipeline and after a while (seconds) an error occurs with h264
> decoder (highlighted in red).
> 0:00:04.946466000 [334m 2547[00m  0x31d2be0 [33;01mWARN   [00m [00m 
>       uridecodebin gsturidecodebin.c:939:void
> unknown_type_cb(GstElement *, GstPad *, GstCaps *, GstURIDecodeBin
> *):<uridecodebin0>[00m warning: No decoder available for type
> 'application/x-rtp, media=(string)application, payload=(int)98,
> clock-rate=(int)90000, encoding-name=(string)VND.ONVIF.METADATA,
> ssrc=(uint)3044748001, clock-base=(uint)2222596881, seqnum-
> base=(uint)37917, npt-start=(guint64)87744000000, play-
> speed=(double)1, play-scale=(double)1'.
> 0:00:04.947055000 [334m 2547[00m  0x31d2be0 [33;01mWARN   [00m
> [00;04m             default descriptions.c:1220:gchar
> *gst_pb_utils_get_codec_description(const GstCaps *):[00m No
> description available for media type: application/x-rtp  
> 
> Luckily the selected codec is h264 but.. Can I force the correct one
> capability directly with rtpbin pipeline or should I create a new
> complex one?

The onvif RTP encoding can be handled by the rtponvif elements,
specifically onvifparse in this case. Unfortunately that one is not
autoplugged because of too low rank, not sure why. You probably want to
report a bug about that at
  https://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com

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