[gst-devel] GST_RTSP_SERVER and VLC

[Alex K]

Hi everyone ....

   I here trying to broadcast a camera using gst-rtsp-server. I just created a pipeline to get the mjpeg stream from the camera and i encode it in to a mpeg4 stream.
My pipeline is something look like this....

souphttpsrc location="http://ip:port:/mjpg" ! multipartdemux ! jpegdec ! queue ! ffenc_mpeg4 ! rtpmp4vpay name=pay0 pt=96 

And the thing is its working....

I tried to play the stream in ffplay using the url rtsp://localhost:554/test

and i got
//--------------------------------------------------------------------------------------------------------------//
** Message: Timestamp..............................................=-1481577766
RTSP response message 0xbfd3ba28
 status line:
   code:   '200'
   reason: 'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '4'
   key: 'RTP-Info', value: 'url=rtsp://192.168.1.244:554/test/stream=0;seq=18158;rtptime=2813389530'
   key: 'Range', value: 'npt=0.000000--0.000000'
   key: 'Server', value: 'GStreamer RTSP server'
   key: 'Session', value: 'npnpcotgspxfmrbn'
 body: length 0
** Message: going to state PLAYING media 0x92ce040
** Message: adding 192.168.1.244:5000-5001
** Message: active 1 media 0x92ce040
** Message: state PLAYING media 0x92ce040
** Message: 0x92ce040: got message type new-clock
** Message: Session created

//-------------------------------------------------------------------------------//

When i played in ffplay its working fine .........the problem comes when the stream is tried to play in vlc.... I got only one image in vlc and it hangs there ....

and i terminal i got some message saying....

///-----------------------------------------------------------//

RTSP response message 0xbfe35318
 status line:
   code:   '200'
   reason: 'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '19'
   key: 'RTP-Info', value: 'url=rtsp://192.168.1.244:554/test/stream=0;seq=38220;rtptime=907387371'
   key: 'Range', value: 'npt=0.000000--0.000000'
   key: 'Server', value: 'GStreamer RTSP server'
   key: 'Session', value: 'amstwlbpespamgbj'
 body: length 0
** Message: going to state PLAYING media 0x8a00048
** Message: adding 192.168.1.210:1738-1739
** Message: active 1 media 0x8a00048
** Message: state PLAYING media 0x8a00048
** Message: 0x8a00048: got message type new-clock
** Message: Session created
** Message: 0x89c2828: new source 0x8a207e0
** Message: structure: application/x-rtp-source-stats, ssrc=(uint)871788172, internal=(boolean)false, validated=(boolean)false, received-bye=(boolean)false, is-csrc=(boolean)false, is-sender=(boolean)false, rtcp-from=(string)192.168.1.210:1739, have-rb=(boolean)false, rb-fractionlost=(uint)0, rb-packetslost=(int)0, rb-exthighestseq=(uint)0, rb-jitter=(uint)0, rb-lsr=(uint)0, rb-dlsr=(uint)0, rb-round-trip=(uint)0;
** Message: finding 192.168.1.210:1739
** Message: 0x89c2828: found transport 0x8a3bf08 for source  0x8a207e0
** Message: 0x89c2828: source 0x8a207e0 in transport 0x8a3bf08 is active
** Message: keep session 0x8a274a0 alive
** Message: 0x89c2828: new SDES 0x8a207e0
** Message: 0x89c2828: source 0x8a207e0 in transport 0x8a3bf08 is active
** Message: keep session 0x8a274a0 alive
** Message: 0x89c2828: source 0x8a207e0 in transport 0x8a3bf08 is active
** Message: keep session 0x8a274a0 alive




//-----------------------------------------------------------//

Here we are adding three callbacks to check the session alive ......in rtsp-media.c.



  g_signal_emit_by_name (media->rtpbin, "get-internal-session", idx,
          &stream->session);
  g_signal_connect (stream->session, "on-new-ssrc", (GCallback) on_new_ssrc,    stream);
  g_signal_connect (stream->session, "on-ssrc-sdes", (GCallback) on_ssrc_sdes,
    stream);

when i am playing the stream using the ffplay i hav no problemm.......

Why these callbacks are activated only when am trying in vlc..?
Why i am getting a  single frame in vlc..?

Any idea....


----------------------------
Thanks
Alex



      
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