Date: Tue, 16 Sep 1997 14:33:55 +0300 (EEST) From: Petri Helenius <pete@sms.fi> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: MPEG multicast receiver Message-ID: <199709161133.OAA05631@silver.sms.fi> In-Reply-To: <199709160625.XAA00359@rah.star-gate.com> References: <199709160447.HAA04748@silver.sms.fi> <199709160625.XAA00359@rah.star-gate.com>
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Amancio Hasty writes: > Would you happen to know how may frames / sec is it trying to send and > at what resolution? CIF resolution, 23.98 fps. > > Also how does look compare to h.261? MPEG has not changed since we last checked this, if you want to see what 600kbps looks like, pull over ftp://ftp.sms.fi/pub/Cisco/outgoing/c36p1_6.mpg (it's truncated I know :-) Pete > > Tnks! > Amancio > > >From The Desk Of Petri Helenius : > > Amancio Hasty writes: > > > Curious, which platform is generating the mpeg stream? > > > > > Precept's IP/TV. The only one I know of which does send RTP > > encapsulated stuff and not some mumbo-jumbo invented by a someone not > > having a clue about interoperability. > > > > Pete > > > > > Tnks, > > > Amancio > > > From The Desk Of Petri Helenius : > > > > Petri Helenius writes: > > > > > > > > > > I'm glad to report that I've successfully received MPEG video > > > > > directly live from a multicast MPV transmission using a little hacked > > > > > rtpdump (to get rid of the MPEG payload header) and mpeg-tv. It runs > > > > > nice around 10fps (without audio, I'm working on that :-) even on my > > > > > lowly P90. I'm just piping the data to mpeg-tv. MPEG-TV seems to be > > > > > quite loss-friendly, just some artifacts pop when a packet is lost > > > > > every now and then. > > > > > > > > > Commenting on myself, I got the audio working (though no > > > > synchronization) by piping the audio stream to mpg123 and now I've > > > > 1.5 megabit MPEG audio/video live decoder directly off the network > > > > (though it makes me fairly short on CPU :-) > > > > > > > > Pete > >
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