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List:       helix-open-discuss
Subject:    Re: [hxdiscuss] RTSP and RTP help for RealOne
From:       Deepak Kotian <dkotian3 () vsnl ! net>
Date:       2003-07-14 19:48:14
Message-ID: 019701c34a3f$30c02640$cc2f41db () vsnl ! net
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Hi Chris,

        I saw that RFC, that is correct. Wanted to confirm, before investing
some
        good time on this.
        Thanks for the information.
        Appreciated again your quick help on this one.

Thanks and Regards
Deepak

----- Original Message -----
From: "Chris Sloan" <csloan@real.com>
To: "Deepak Kotian" <dkotian3@vsnl.net>
Cc: <discuss@open.helixcommunity.org>
Sent: Tuesday, July 15, 2003 12:57 AM
Subject: Re: [hxdiscuss] RTSP and RTP help for RealOne


> If I understand you correctly, you are correct.  You need to create
> proper rtp packets according to rfc 1889 AND the contents of those
> packets (the MPEG bits) need to be compliant with rfc 2250 section 3.
> This is the same for MPEG-1 and MPEG-2.
>
> If you look at section 3 of rfc 2250 you will see that it does not
> include system/program data in the packets.  The payload of the
> packets is just the elementary stream data broken up into loss-tolerant
> packets.  Some of the information from the system/program data is
> translated from the system/program stream to the payload header.  So
> your server MUST demultiplex the MPEG clips AND generate the proper
> a/v packets.
>
> Chris
>
> Monday, July 14, 2003, 11:41:03 AM, you wrote:
>
> Deepak> Thanks .
> Deepak> That means MPEG1 also would not work with RFC 1889 and
> Deepak> RFC 2250 is needed.
> Deepak> And, even MPEG1 system stream needs to be split/demux. Correct ?
> Deepak> Because we have a muliplexed MPEG1 system stream .
>
> Deepak> Similarly for MPEG2 as well, it would be same, i.e. generate
seperate
> Deepak> PES packets from audio/video server.
> Deepak> Could you please kindly confirm on this. Just a bit of confusion
before
> Deepak> we start our full fledge implementation.
>
>
> Deepak> Thanks and Regards
> Deepak> Deepak
>
>
> Deepak> ----- Original Message -----
> Deepak> From: "Chris Sloan" <csloan@real.com>
> Deepak> To: "Deepak Kotian" <dkotian3@vsnl.net>
> Deepak> Cc: <discuss@open.helixcommunity.org>
> Deepak> Sent: Monday, July 14, 2003 10:53 PM
> Deepak> Subject: Re: [hxdiscuss] RTSP and RTP help for RealOne
>
>
> >> Friday, July 11, 2003, 11:06:50 PM, you wrote:
> >>
> >> Deepak> Thanks Chris.
> >> Deepak> Please find my comments between ***Deepak
> >>
> >> Deepak> ----- Original Message -----
> >> Deepak> From: "Chris Sloan" <csloan@real.com>
> >> Deepak> To: "Deepak Kotian" <dkotian3@vsnl.net>
> >> Deepak> Cc: <discuss@open.helixcommunity.org>
> >> Deepak> Sent: Saturday, July 12, 2003 7:07 AM
> >> Deepak> Subject: Re: [hxdiscuss] RTSP and RTP help for RealOne
> >>
> >>
> >> >>
> >> Deepak> ***Deepak
> >> Deepak> Can realone please provide a plug-in/support for this easily.
> >> Deepak> Many hardware encoders give out multiplexed
> >> Deepak> PS/TS O/P.
> >> Deepak> ***Deepak
> >>
> >> It could be added but not easily.  This kind of work would require a
> >> specific usage case to investigate.
> >>
> >> Deepak> ***Deepak
> >> Deepak> For MPEG1, what part for RFC is a must. We have
> >> Deepak> MPEG1 stream as well, so we can work with that as well.
> >> Deepak> Could please  elaborate.
> >> Deepak> ***Deepak
> >> The encapsulation of elementary streams section 3.
> >>
> >> Deepak> ***Deepak
> >> Deepak> Could you please RFC you are refering for elementary.
> >> Deepak> I think, we should be fine with this one.
> >> Deepak> I assume, if we just implement MPV, payload 32 of rfc2250 and
> >> Deepak> the audio payload, it would be able to render on real player.
Is
> >> Deepak> this correct?
> >>
> >> Yes, payloads mpv and mpa of rfc 2250.
> >>
> >> Deepak> Does Helix RTSP server have this implementation, are there any
> >> Deepak> documentation easily of do's and dont's of RTSP/RTP server
> >> Deepak> implementation for realone.
> >> Deepak> Aprreciated the help provided.
> >> Deepak> ***Deepak
> >>
> >> We do not have any documentation of this kind specific to MPEG and I
> >> do not know if we have any server docs.  Sean???
> >>
> >> Chris
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: discuss-unsubscribe@open.helixcommunity.org
> >> For additional commands, e-mail: discuss-help@open.helixcommunity.org
> >>
>



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