In my example I am using SIP, so the SDP information is actually exchanged this way.
The RTSP is simply for receiving as a hack to Android's built in (arbitrary) limitations. So the idea is to take the SDP for receiving and wrap it over RTSP. -- "The greatest challenge to any thinker is stating the problem in a way that will allow a solution" - Bertrand Russell Andy Savage Cell Phone: +852 936 34341 Skype ID: andy_savage Linked In: http://www.linkedin.com/in/andysavage On Mon, May 31, 2010 at 9:26 AM, Ignas <ignas.limanaus...@gmail.com> wrote: > There is a technical limitation to what SDP can legally convey. A > single SDP document can contain only one end of media "conversation". > Therefore it is technically impossible to setup streaming with just > one SDP document there have to be an exchange. When using RTSP or SIP > terminals exchange their SDP information and thus get to know where to > stream to and from where to accept the stream. > > MediaPlayer could accept just one SDP (i.e. streamer's), but then how > would streamer would know where to transmit? Both of them have to > exchange at least supported CODEC information and connection > information (port and IP). > > Maybe I am just not aware of SDP format with two node's information. > Can someone share an example? > > On May 27, 3:22 pm, debelyoo <jean.ross...@gmail.com> wrote: > > I agree with Andy's comment: > > > > On May 25, 8:36 am, Andy Savage <a...@bluewire.net.nz> wrote: > > > > > There seems to be a limitation that means that it will only accept SDP > > > information with RTP streams inside if it gets them from the RTSP > stream > > > (e.g. it gets this information from SETUP in the RTSP protocal). > > > > It is possible to play a stream by requesting it via a RTSP request > > (both audio and video are sent over RTP and the MediaPlayer is able to > > decode and play them). > > But it is not possible to play live RTP stream by requesting the SDP > > file directly (via an HTTP request). The RTP streams (audio and video) > > are sent to the device from the server. The MediaPlayer should "just" > > get the SDP file, listen on the proper ports and decode the streams. > > But it generates an error and do not play the streams. > > > > Jean > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
