From owner-freebsd-multimedia Fri Jan 10 10: 0:49 2003 Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BEE6737B401 for ; Fri, 10 Jan 2003 10:00:47 -0800 (PST) Received: from smtp5.wanadoo.nl (smtp5.wanadoo.nl [194.134.35.176]) by mx1.FreeBSD.org (Postfix) with ESMTP id 63E9D43F43 for ; Fri, 10 Jan 2003 10:00:43 -0800 (PST) (envelope-from steve@sohara.org) Received: from ams-gw.sohara.org (p3996.vwr.wanadoo.nl [212.129.227.164]) by smtp5.wanadoo.nl (Postfix) with SMTP id 4C80B746B0; Fri, 10 Jan 2003 19:00:39 +0100 (CET) Date: Fri, 10 Jan 2003 19:00:40 +0100 From: Steve O'Hara-Smith To: Andre Albsmeier Cc: andre.albsmeier@siemens.com, freebsd-multimedia@FreeBSD.ORG Subject: Re: AV sync on ffmpeg captures - was Re: FreeBSD 4.7R: no sound when recording with ffmpeg? Message-Id: <20030110190040.00bc5dda.steve@sohara.org> In-Reply-To: <20030110082231.A32663@curry.mchp.siemens.de> References: <20021028202230.1283e8cd.steve@sohara.org> <20021029194220.7fb532ad.steve@sohara.org> <20030106115851.A12349@curry.mchp.siemens.de> <20030106215821.60130d42.steve@sohara.org> <20030107085526.A14263@curry.mchp.siemens.de> <20030107191359.12abeb78.steve@sohara.org> <20030109144913.A30175@curry.mchp.siemens.de> <20030109192247.0602e203.steve@sohara.org> <20030110082231.A32663@curry.mchp.siemens.de> X-Mailer: Sylpheed version 0.8.8 (GTK+ 1.2.10; i386-portbld-freebsd4.7) X-Face: %]+HVL}K`P8>+8ZcY-WGHP6j@&mxMo9JH6_WdgIgUGH)JX/usO0%jy7T~IVgqjumD^OBqX,Kv^- GM6mlw(fI^$"QRKyZ$?xx/ Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Fri, 10 Jan 2003 08:22:31 +0100 Andre Albsmeier wrote: AA> On Thu, 09-Jan-2003 at 19:22:47 +0100, Steve O'Hara-Smith wrote: AA> > On Thu, 9 Jan 2003 14:49:13 +0100 AA> > Andre Albsmeier wrote: AA> > Yep - I've played a lot of VOBs and AVIs in mplayer without sync AA> > problems too. Timestamping in streams is an amazingly complex thing AA> > (ie. AA> AA> Well, let me ask you one question: What happens if you play a ffmpeg AA> generated stream with mplayer? Is the problem reproducible? I haven't seen slippage since the last iteration of the grab code, before that I did. I don't think you are the only one seeing it now though. AA> This doesn't help a lot. The interesting thing is, when playing AA> without the -fps option, mplayer tells me that the frame rate is AA> 25.00: Good the header is at least partially valid :) AA> However, I have got the impression that the whole -fps stuff doesn't AA> work a good as it should be. E.g., if you use -fps and let a file AA> play normally until a certain position, the AV-offset is different as AA> it is if you seek 20 seconds before the same point and let it play AA> from there. Ugh! AA> Unfortunately, I can't help here. But in case you want me to do some AA> tests I am happy to help... Thanks, I'll let you know if/when I get anywhere with it. -- C:>WIN | Directable Mirrors The computer obeys and wins. |A Better Way To Focus The Sun You lose and Bill collects. | licenses available - see: | http://www.sohara.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message