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Date:      Thu, 18 Sep 1997 08:37:22 +0300 (EEST)
From:      Petri Helenius <pete@sms.fi>
To:        Youngil Choi <yichoi@cosmos.kaist.ac.kr>
Cc:        freebsd-multimedia@freebsd.org
Subject:   Re: MPEG multicast receiver
Message-ID:  <199709180537.IAA01694@silver.sms.fi>
In-Reply-To: <199709180103.KAA03821@cosmos.kaist.ac.kr>
References:  <199709152103.AAA03870@silver.sms.fi> <199709180103.KAA03821@cosmos.kaist.ac.kr>

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Youngil Choi writes:
 > 
 > Great!!
 > 
 > Could you tell me how this can be done?
 > How to hack rtpdump? Didn't you use payload format for MPEG at all?
 > Any information, HOWTO-docs, and source code would be accepted with
 > great pleasure. 
 > 
The thing I did was to change rtpdump -F payload to discard the four
byte MPEG-payload header also, in addition of the 12 bytes of RTP
header. So it's a small change you can do yourself fairly easily, my
real intention is to speak to the Mpeg-TV people to add this reception
functionality into their application, since basic RTP is not that hard
to do. (and MPEG-TV is definetly the fastest software decode for MPEG
I've seen on intel architechtures, not counting some unreleased
MMX-boosted stuff that are not generally available)

Pete



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