From owner-freebsd-multimedia Wed Sep 17 22:38:09 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id WAA08549 for multimedia-outgoing; Wed, 17 Sep 1997 22:38:09 -0700 (PDT) Received: from silver.sms.fi (silver.sms.fi [194.111.122.17]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id WAA08537 for ; Wed, 17 Sep 1997 22:38:05 -0700 (PDT) Received: (from pete@localhost) by silver.sms.fi (8.8.7/8.7.3) id IAA01694; Thu, 18 Sep 1997 08:37:22 +0300 (EEST) Date: Thu, 18 Sep 1997 08:37:22 +0300 (EEST) Message-Id: <199709180537.IAA01694@silver.sms.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Petri Helenius To: Youngil Choi Cc: freebsd-multimedia@freebsd.org Subject: Re: MPEG multicast receiver In-Reply-To: <199709180103.KAA03821@cosmos.kaist.ac.kr> References: <199709152103.AAA03870@silver.sms.fi> <199709180103.KAA03821@cosmos.kaist.ac.kr> X-Mailer: VM 6.22 under 19.15p7 XEmacs Lucid Sender: owner-freebsd-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk 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