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 4.62) (envelope-from ) id 1HKuzX-0000Q6-RD for garchives@archives.gentoo.org; Sat, 24 Feb 2007 11:23:04 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l1OBLG8b001285; Sat, 24 Feb 2007 11:21:16 GMT Received: from ender.volumehost.net (adsl-69-154-123-202.dsl.fyvlar.swbell.net [69.154.123.202]) by robin.gentoo.org (8.14.0/8.14.0) with ESMTP id l1OBH44Q029158 for ; Sat, 24 Feb 2007 11:17:05 GMT Received: from localhost (localhost [127.0.0.1]) by ender.volumehost.net (Postfix) with ESMTP id 63D7A14974 for ; Sat, 24 Feb 2007 11:17:04 +0000 (UTC) X-Virus-Scanned: amavisd-new at volumehost.net Received: from ender.volumehost.net ([127.0.0.1]) by localhost (ender.volumehost.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 0+lqnNua1esm for ; Sat, 24 Feb 2007 11:17:02 +0000 (UTC) Received: from adsl-69-154-123-205.dsl.fyvlar.swbell.net (adsl-69-154-123-205.dsl.fyvlar.swbell.net [69.154.123.205]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ender.volumehost.net (Postfix) with ESMTP id 9F65C14CCF for ; Sat, 24 Feb 2007 11:17:02 +0000 (UTC) From: "Boyd Stephen Smith Jr." To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] ot - video encoding Date: Sat, 24 Feb 2007 05:17:02 -0600 User-Agent: KMail/1.9.6 References: <1008458262-1172313968-cardhu_decombobulator_blackberry.rim.net-413537209-@bxe011-cell00.bisx.prodap.on.blackberry> In-Reply-To: <1008458262-1172313968-cardhu_decombobulator_blackberry.rim.net-413537209-@bxe011-cell00.bisx.prodap.on.blackberry> X-Eric-Conspiracy: There is no conspiracy 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: multipart/signed; boundary="nextPart2179417.gCEb3ero7i"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200702240517.02818.bss03@volumehost.net> X-Archives-Salt: 09fe034b-d843-446c-821f-4cdb7a2be4cf X-Archives-Hash: 52db55270389eea19bc254486c85a3e3 --nextPart2179417.gCEb3ero7i Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Saturday 24 February 2007, Kellystewart00@yahoo.com.au wrote=20 about '[gentoo-user] ot - video encoding': > Hi List im looking for a program to encode from avi to divx does anyone > know of a program to do this? Short answer: mencoder Longer answer: (1) Avi is not a format -- or at least it's not a video format. It's=20 a "wrapper" format that can hold various video formats with various audio=20 formats interleaved. AVI =3D Audio/Video Interleave (2) Mplayer and Xine are the big a/v decoders, with ffmpeg being used by=20 both projects (IIRC); vlc is a very useful third place, and gstreamer does= =20 have some "native" codecs although it can (and IIRC, still generally does)= =20 call out to the xine, mplayer, or ffmpeg libraries for some formats. (3) Encoders are much more fragmented, although ffmpeg provides many=20 encoders, and mplayer can use the ffmpeg encoders as well as any native=20 ones it might have, plus it understands the libraries (or interfaces via=20 system() calls) with some others. Xine, vlc, and gstreamer are, AFAIK not= =20 oriented towards encoding. (4) Divx is just an video format and if you intend to combine it with=20 audio, you'll have to choose a format for that. I prefer vorbis; with=20 speex for those cases where is audio is literally just a voice-over. =20 However, vorbis and speex decoders generally aren't shipped with=20 proprietary OSes such as OS X or Windows and are playable on relatively=20 few portable devices. MP3 is fine for mono or stereo audio, but AFAIK it=20 doesn't support more channels. AC3 is IME larger for the same quality,=20 but does support 5.1 and other formats with more channels. (5) Again, divx is just a video format, so you'll need a container format=20 if you want to combine it with other media, like subtitles or audio. I=20 prefer Matroska or ogg. Neither is shipped with proprietary OSes and both= =20 have poor support on portables, although ogg has marginally better support= =20 than Matroska. I don't believe divx is can be shipped in the standard mp4= =20 container, but I could be wrong. It's normally shipped in, oddly enough=20 in your case, AVI format. So, you have a couple more high-level decisions to make before you=20 transcode. Once you decide on them, you'll still need to determine=20 encoder-specific parameters, bitrates, and whotnot, although sane defaults= =20 are generally provided by most tools when possible. However, the shear=20 number of options may be a little bit overwhelming. Tip: doesn't change=20 any settings you don't have to the first time, you can play with all=20 the "knobs" once you get base functionality. Mencoder is probably is most featureful transcoding tool, but you may be=20 able to find a GUI that the features you need and is user-friendly. I=20 don't do enough transcoding to have any recommendations other than=20 mencoder, because I got familiar enough with it to do what I needed and=20 stopped looking for anything else. =2D-=20 Boyd Stephen Smith Jr. ,=3D ,-_-. =3D.=20 bss03@volumehost.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-'=20 http://iguanasuicide.org/ \_/ =20 New GPG Key! Old key expires 2007-03-25. Upgrade NOW! --nextPart2179417.gCEb3ero7i Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.2 (GNU/Linux) iD8DBQBF4B6u55pqL7G1QFkRAj90AJ48zWFgSaxoowS924e0nPIox0BpjQCcD/O6 DU3GTcGvj/H53WQyiGDGA28= =IirK -----END PGP SIGNATURE----- --nextPart2179417.gCEb3ero7i-- -- gentoo-user@gentoo.org mailing list