rufer stephane wrote:
>> Maybe there is a firewall or something stopping the UDP traffic on your 
>> >network?
> 
> For some reason I get the error "could not find codec parameters" when I try 
> opening the RTSP stream with ffplay.

I got that error when I tried the URL you originally posted, because libavformat
does not properly understand URL redirection. But when I try the "real URL", 
ffplay
can receive the stream. I suspect there is some problem in your setup (maybe 
you don't
have the latest ffplay version, or maybe there are problems with firewalls 
and/or
similar stuff).

> Does FFmpeg support 3gp natively?

I do not know what 3gp standards mandate... Surely, libavformat cannot receive
H.263+AMR, but it can receive MPEG4 audio and video over RTP.


                                Luca
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