How to play IPTV streamer by udpsrc？

[Wim Taymans]

On 05/14/2012 04:25 PM, tanzhichaoanuo wrote:
> Now I want to play the IPTV stream which was captured by WireShark and was
> saved in th pcap file,
> Server:
> I use the "tcpreplay -i eth0 iptv.pcap" to sent the stream on a server
> computer,
>
> Client:
> and use the command:
> "gst-launch-0.10 -v gstrtpbin name=rtpbin udpsrc  multicast-iface=eth0
> multicast-group=225.1.2.2 port=8034 caps="application/x-rtp, \
> media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, \
> ssrc=(guint)1253787951, payload=(int)33, clock-base=(guint)3847989125, \
> seqnum-base=(guint)25200"  ! \
> rtpbin.recv_rtp_sink_0 rtpbin. ! rtpmp2tdepay ! mpegtsdemux name=d ! queue \
> ! 'video/x-h264' ! ffdec_h264 ! ffmpegcolorspace ! videoscale ! queue !
> xvimagesink
> "
>
> Result:
> On the client,when execute the above command,I stop at:
> Setting pipeline to PAUSED ...
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
>
> But I use VLC on the client ,then can get the server stream and can play it
> normally.Wheather there is some wrong with my pipeline command?
your encoding-name caps property is wrong, it doesn't match the 
depayloader accepted caps.

Wim
>
> By doing some research,I find the IPTV stream is different from the common
> stream:
> 1.I use tcpdump -i eth0 ,and get the follow infor:
> 09:11:55.138926 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.142901 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.146890 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.150871 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.154911 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.160492 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
> 09:11:55.164337 IP 61.181.150.102.12502>  225.1.2.2.8034: UDP, length 1348
>
> As the length is 1348,If I play a pcap file(the length is 1316) use the
> tcpreplay,then I use udpsrc on the client can get the stream and can play
> it.So wheather the length 1348 is
> not a common rtp package ,or udpsrc can't deal with the larger then 1348
> package?
>   Thanks very much.For this ,I try many ways and many days,but still failed.
>                             zhichao.
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/How-to-play-IPTV-streamer-by-udpsrc-tp4632303.html
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