From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1GIjpo-0003RC-Ac for garchives@archives.gentoo.org; Thu, 31 Aug 2006 10:31:44 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.7/8.13.6) with SMTP id k7VASIXD019205; Thu, 31 Aug 2006 10:28:18 GMT Received: from smtp1.iway.na (smtp1.iway.na [196.44.136.15]) by robin.gentoo.org (8.13.7/8.13.6) with ESMTP id k7VAP4LW013964 for ; Thu, 31 Aug 2006 10:25:05 GMT Received: from vscan.iway.na (vscan.iway.na [196.44.136.13]) by smtp1.iway.na (Postfix) with ESMTP id B322DB7853 for ; Thu, 31 Aug 2006 11:25:01 +0100 (WAT) Received: from mx2.iway.na (localhost [127.0.0.1]) by vscan.iway.na (Postfix) with ESMTP id 2940E80546 for ; Thu, 31 Aug 2006 11:25:01 +0100 (WAT) Received: from uwix.alt.na ([196.44.156.63]) by mx2.iway.na (Netscape Messaging Server 4.15) with ESMTP id J4V0KJ03.66D for ; Thu, 31 Aug 2006 12:14:43 +0100 Received: from uwe by uwix.alt.na with local (Exim 4.62) (envelope-from ) id 1GIjYz-0006BT-25 for gentoo-user@lists.gentoo.org; Thu, 31 Aug 2006 11:14:21 +0100 From: Uwe Thiem Organization: SysEx (Pty) Ltd. To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] tweaking mencoder Date: Thu, 31 Aug 2006 11:14:20 +0100 User-Agent: KMail/1.9.4 References: <1155247592.21041.9.camel@orpheus> <1156768772.27666.20.camel@orpheus> <1156856108.32349.3.camel@orpheus> In-Reply-To: <1156856108.32349.3.camel@orpheus> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200608311114.20539.uwix@iway.na> Sender: Uwe Thiem X-Archives-Salt: 8661aa32-2ba2-403a-8a98-d3c363f3a8b6 X-Archives-Hash: ce8aec42091fb2bed9911872db848856 On 29 August 2006 13:55, Iain Buchanan wrote: > On Mon, 2006-08-28 at 22:09 +0930, Iain Buchanan wrote: > > On Fri, 2006-08-11 at 08:21 +0100, Uwe Thiem wrote: > > > On 10 August 2006 23:06, Iain Buchanan wrote: > > > > Hi all, > > > > > > > > I'm trying out mencoder to try a few different codecs and formats for > > > > 1. dvd authoring and 2. just compressing to keep on my HD. > > > > > > For DVDs, try this: > > > > > > mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ > > > -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ > > > -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ > > > vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ > > > -ofps 25 -o outfile.mpeg infile > > > > wow! I just got around to trying that a couple of days ago and it > > produces great output: fast, small file size, and no noticeable > > difference in quality between the mpeg and the original dv! (I watched > > many different clips many times over to make sure! on TV and on my LCD) > > Hmm, on closer inspection, I _do_ notice the output is slightly lower > quality. (Don't know why I didn't see it before...) Is there any way I > can tweak the quality? Can I change vbitrate, or is 5000 a dvd standard? You can play with srate, lavresample, vrc_maxrate and vbitrate. Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list