[Live-devel] Question regarding ParseRTSPRequestString() and URLSuffix/URLPreSuffix

[Mehran Ansari]

It seems to me the ParseRTSPRequestString() only handles one specific RTSP URI format and does not handle the generic allowed format. According to RFC2326  syntax and semantics for RTSP URLs is:


   rtsp_URL  =   ( "rtsp:" | "rtspu:" )
                 "//" host [ ":" port ] [ abs_path ]
   host      =   <A legal Internet host domain name of IP address
                 (in dotted decimal form), as defined by Section 2.1
                 of RFC 1123 \cite{rfc1123}>
   port      =   *DIGIT

   abs_path is defined in [H3.2.1].

This means I should be allowed to have a rtsp_URL of:
   
   RTSP://192.168.1.20:8554/PSIA/Streaming/channels/0 

But this function parses this URL as URLSuffix="0" and URLPreSuffix="channels"

I modified this function such that it sets URLSuffix="PSIA/Streaming/channels/0" and URLPreSuffix="192.168.1.20:8554"
and named my session to be the value of URLSuffix. Now I am having problem with RTSP_cmd_setup as the openRTCP client appends "track1" to the URL which makes this session non-existent. Then I realized that is the reason you have URLSuffix and URLPreSuffix to remove "track1" and see the actual URL.

In my server I won't have different tracks and according to the RFC 2326: 

   If the presentation comprises only a single stream, the media-level
   "a=control:" attribute may be omitted altogether.

Is there any way for me to disable this appending of "track1" to the URL? I mean, other than actually deleting it from the sdpFmt in OnDemandServerMediaSession.cpp. If I do this would I cause other problem?

Thank you for any help you can give me in this regard.

--Mehran