Using gstreamer RTSP server over the internet

[Nicolas Dufresne]

Le mercredi 06 septembre 2017 à 14:53 -0300, Thadeu Antonio Ferreira de
Melo a écrit :
> I´m now testing with the SDP sample.
> 
> I run my ffmpeg source  that generates this SDP file:
> ---------------------------------------------------
> v=0
> o=- 0 0 IN IP4 127.0.0.1
> s=No Name
> c=IN IP4 127.0.0.1
> t=0 0
> a=tool:libavformat 56.40.101
> m=video 5004 RTP/AVP 96
> a=rtpmap:96 H264/90000
> a=fmtp:96 packetization-mode=1
> ----------------------------------------------------

Ok, seems fair, not sure what "packetization-mode=1" though. Before you
go and create an RTSP relay out of that, can you make sure you can
receive, decode, play this RTP stream in the first place ?

  gst-launch-1.0 filesrc location=my.sdp ! sdpdemux ! decodebin ! autovideosink

Then the relay pipeline should be fairly similar. Something like may work:

  "filesrc location=my.sdp ! sdpdemux  ! identity name=pay0"

Nicolas

> 
> I set the file for the example and run it. However when I hit play
> the server displays:
> 
> (lt-test-sdp:9989): GStreamer-CRITICAL **: gst_object_unref:
> assertion 'object != NULL' failed
> 
> ** (lt-test-sdp:9989): CRITICAL **: gst_rtsp_stream_join_bin:
> assertion 'GST_IS_RTSP_STREAM (stream)' failed
> 
> ** (lt-test-sdp:9989): CRITICAL **: gst_rtsp_media_create_stream:
> assertion 'GST_IS_ELEMENT (payloader)' failed

This is pretty bad, I would not expect anything to work after-ward.
Though, we'd need to see you code to figure-out what happened. It seems
to start from a GstObject being NULL.

> 
> And the player returns this message 
> 
> -------------------------------------------------------------------
> ------------------------------------------------------
> [rtsp @ 0x7ff4cc009260] method PLAY failed: 454 Session Not Found   
> rtsp://127.0.0.1:8554/test: Server returned 4XX Client Error, but not
> one of 40{0,1,3,4}
> -------------------------------------------------------------------
> ------------------------------------------------------
> 
> I belive there are more configurations I have to make so the server
> can understand this is a live stream.
> 
> 
> 2017-09-06 13:46 GMT-03:00 Thadeu Antonio Ferreira de Melo <thadeu.af
> m at gmail.com>:
> > I think I finally understood some of the philosophy of gst.
> > 
> > The videotestsrc has worked.
> > 
> > Now would be nice if the source is the desktop I capture with
> > ffmpeg - and is already encoded to h264.
> > 
> > Sorry for my previous rant.  
> 
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