[streaming] Re: MPEG2 over RTP

[Jean-Paul Saman]

hong zhu wrote:

>Dear videolan,
>
>I have tried to stream a mpeg2 file by VLS. It played well with
>VLC as a client receiver in UDP packets.
>I have tried to stream it in RTP format. and VLC played too.
>But From dumpped packets it seemed to me it was still in UDP format.
>and VLC's side I just used udp option to play video stream.
>  
>
Which is according to RFC's

>Could you please tell me if videolan has implemented RFC 2250 (MPEG2 
>over RTP)?
>  
>
Yes we do. The name RTP is misleading, because it uses UDP as transport 
protocol. Just read the RFC's on the subject.

>And also it seemed to me VLC can not play dummped mpeg2 video stream
>file if this file is not started as sync code (0x4750). We are worrying 
>
VLC shouldn't have a problem with this. If it does then it is a bug we 
need to fix, do you have logs and a sample file to support this theory?

>about if this could be a problem if we have packet lost. Thanks for 
>your helps.
>
>  
>
When using UDP as underlying transport protocol, there is always a 
chance of loosing packets.

-- 

Many greetings,
Jean-Paul Saman

Consultant
--------------------------------------------------------------
VLC iPAQ maintainer                    http://www.videolan.org
RedHat Certified Engineer         RHCE number: 807202745005548
--------------------------------------------------------------


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