[streaming] Manually creating an SDP-file to input pure RTP

[Alexander Bethke]

Hi,

Thanks for the notes. I understand the sync problem, obviously the 
Symbian library has an option for that, so it's turned on now ;) .
Didn't not solve the actual problem. Luckily ILEoo pointed me to a 
problem with the payload ids in the captured RTP traffic.

The Symbian RTP library for some reason ignores the set for payload 
type. It had to be manually forced on the rtp header. Now VLC reacts, I 
just have to get all those parameters right... Anybody knows what those 
config hex-properties are generated from?

Regards, Alex




Rémi Denis-Courmont wrote:
> Le vendredi 14 novembre 2008 17:43:30 Marshall Eubanks, vous avez écrit :
>   
>> RTP is built and intended to be used with muxing - it has it's own
>> time codes, etc.
>>     
>
> RTP timestamps are only synched within a single RTP session and source. If you 
> want to have audio _and_ video (or multiple sources), you need to correlate 
> timestampts from different sessions. That's done with RTCP-SR.
>
> The only exception is if you're doing MPEG Transport Stream over RTP to mux 
> audio and video on the same RTP session. Or then you'd have to assume that 
> all sessions have the same RTP timestamp frequency and are synchronous, but 
> that's completely not specified.
>
>