In order to help get this implemented, could you please create an enhancement request at
http://bugs.wireshark.org and attach a sample trace showing the problem?
I don't know how soon I or someone else might find time to work on this, so I would suggest pursuing the UDP/RTP route, if possible
On Thu, Mar 6, 2008 at 11:54 AM, Fabiana moreno <
fvmoreno@xxxxxxxxx> wrote:
Thanks!! i do think i need that!
On 06/03/2008, Martin Mathieson <martin.r.mathieson@xxxxxxxxxxxxxx> wrote:
When we set up RTP streams (including passing information about dynamic payload types), we assume that its over UDP. It would be good to fix this.
But in the meantime, can't you configure your RTSP server or client to use UDP/RTP transport for the media?
On Thu, Mar 6, 2008 at 11:10 AM, Fabiana moreno <
fvmoreno@xxxxxxxxx> wrote:
When i decode to udp and hence to rtp to analyse the jitter, and the delays then i get that problem of unknowns that i mentioned....
On 06/03/2008, Fabiana moreno <fvmoreno@xxxxxxxxx> wrote:
If you dont want to open any attachment..then this is a sample of what i see when im capturing
94 0.695962 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 1356 bytes
95 0.696016 192.168.123.101 192.168.123.100 TCP bcs-broker > rtsp [ACK] Seq=1 Ack=69353 Win=51200 Len=0
96 0.706464 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 118 bytes
97 0.712661 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 1262 bytes
98 0.712699 192.168.123.101 192.168.123.100 TCP bcs-broker > rtsp [ACK] Seq=1 Ack=70741 Win=50853 Len=0
99 0.720359 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 1218 bytes
100 0.738111 192.168.123.100 192.168.123.101 TCP [TCP Previous segment lost] Interleaved channel 0x00, 898 bytes
101 0.738162 192.168.123.101 192.168.123.100 TCP bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=73881
102 0.740297 192.168.123.101 192.168.123.100 RTSP Continuation
103 0.742967 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 797 bytes
104 0.743031 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#1] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=74682
105 0.756244 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 107 bytes
106 0.756283 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#2] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=74793
107 0.768215 192.168.123.100 192.168.123.101 TCP [TCP segment of a reassembled PDU]
108 0.768269 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#3] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=76253
109 0.770532 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 1472 bytes
110 0.770548 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#4] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=76269
111 0.777225 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 425 bytes
112 0.777280 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#5] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=76698
113 0.797305 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 1420 bytes
114 0.797378 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#6] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=78122
115 0.798265 192.168.123.100 192.168.123.101 TCP rtsp > slingshot [ACK] Seq=1 Ack=657 Win=652 Len=0
116 0.800536 192.168.123.100 192.168.123.101 RTSP Reply: RTSP/1.0 200 OK
117 0.800567 192.168.123.101 192.168.123.100 TCP [TCP Dup ACK 101#7] bcs-broker > rtsp [ACK] Seq=1 Ack=71963 Win=51200 Len=0 SLE=72979 SRE=78261
118 0.815779 192.168.123.100 192.168.123.101 TCP [TCP Fast Retransmission] Interleaved channel 0x00, 1012 bytes
119 0.815863 192.168.123.101 192.168.123.100 TCP bcs-broker > rtsp [ACK] Seq=1 Ack=78261 Win=51200 Len=0
120 0.828061 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 749 bytes
121 0.833133 192.168.123.100 192.168.123.101 TCP Interleaved channel 0x00, 971 bytes
122 0.833169 192.168.123.101 192.168.123.100 TCP bcs-broker > rtsp [ACK] Seq=1 Ack=79989 Win=51200 Len=0
On 06/03/2008, Fabiana moreno <fvmoreno@xxxxxxxxx> wrote:
That´s is the thing... i am not seeing any udp packets in my capture. just tcp and rtsp.
Attached are the capture files(one .pcap and the other in text form) that includes RTSP signalling
On 06/03/2008, Martin Mathieson <martin.r.mathieson@xxxxxxxxxxxxxx> wrote:
Could you possibly post a capture file that includes the RTSP signalling?
We should be configuring the RTP stream with the dynamic payload type so that it can be displayed properly...
On Wed, Mar 5, 2008 at 11:08 PM, Fabiana moreno <
fvmoreno@xxxxxxxxx> wrote:
Well it's my final year project and i need to analyse the QoS parameters when streaming over wireless lan.
I'm streaming an mpeg4 video from a server to my client (the last one is the one where wireshark is installed)
So im trying to to capture all the packets im getting when streaming.
My server supports rtcp/rtp and i think (correct me if im wrong) that the best way to analyse all these packets are to decode them to udp and then to rtp but im getting the problem mentioned before.
But is there some way i can fix this?
On 05/03/2008, Jaap Keuter <jaap.keuter@xxxxxxxxx> wrote:
Well, I dont' really understand what you do, but the PT=unknown is from the
fact that this packet type is dynamically assigned, negotiated between
parties. If Wireshark doesn't see the negotiations, it can't make out which
codec goes with PT 96. So yes, it can happen you see this.
Thanx,
Jaap
Fabiana moreno wrote:
> hello!!!
> I'm streaming an mpeg4 video with darwin streamer server trhough my
> WLAN. I'm using wireshark to analyse the packets im receiving.
> I see TCP/RTSP packets but when i decode to UDP and then to RTP to
> anlyse it, wireshark shows the following in all the packets, here a sample:
>
> 34 0.253327 192.168.123.100 <http://192.168.123.100/>
> 192.168.123.101 <http://192.168.123.101/> RTP PT=Unknown (96),
> SSRC=0x4B6C00C, Seq=65416, Time=1531529067
>
> is this what i suppose to see? any suggestions in how to analyse packets
> im receiving while streaming? please help!! im new
>
>
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