From owner-freebsd-multimedia@FreeBSD.ORG Fri Sep 30 01:59:17 2005 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org 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 76CCA16A41F for ; Fri, 30 Sep 2005 01:59:17 +0000 (GMT) (envelope-from doug@cnd.dundas.on.ca) Received: from fep7.cogeco.net (smtp.cogeco.net [216.221.81.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id F37A243D48 for ; Fri, 30 Sep 2005 01:59:16 +0000 (GMT) (envelope-from doug@cnd.dundas.on.ca) Received: from srv.cnd.dundas.on.ca (d141-68-27.home.cgocable.net [24.141.68.27]) by fep7.cogeco.net (Postfix) with ESMTP id 7FD1D1CBF for ; Thu, 29 Sep 2005 21:59:15 -0400 (EDT) Received: from monk.cnd.dundas.on.ca (monk.cnd.dundas.on.ca [10.87.0.20]) by srv.cnd.dundas.on.ca (8.13.1/8.13.1) with ESMTP id j8U1xFEW000857 for ; Thu, 29 Sep 2005 21:59:15 -0400 (EDT) (envelope-from doug@cnd.dundas.on.ca) Received: from monk.cnd.dundas.on.ca (localhost [127.0.0.1]) by monk.cnd.dundas.on.ca (8.13.4/8.13.4) with ESMTP id j8U1xFIv005147 for ; Thu, 29 Sep 2005 21:59:15 -0400 (EDT) (envelope-from doug@monk.cnd.dundas.on.ca) Message-Id: <200509300159.j8U1xFIv005147@monk.cnd.dundas.on.ca> To: freebsd-multimedia@freebsd.org In-reply-to: Your message of "Thu, 29 Sep 2005 15:59:26 EDT." <6.2.3.4.0.20050929155647.03113e40@64.7.153.2> From: "Douglas Berry" Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 29 Sep 2005 21:59:15 -0400 Sender: doug@cnd.dundas.on.ca Subject: Re: fast transcoding of pvr-250 created files X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Sep 2005 01:59:17 -0000 mike@sentex.net said: > I just got my pvr250 up and running again and was wondering what > people use for fast and efficient transcoding ? The native format > is quite large and I want to convert the file into xvid or divx for > later viewing, but I dont want to reduce the quality too much. > Anyone doing anything similar, and if so what program are you using > with what options ? It looks like you are recording full D1, I've been using half D1.... $ /usr/local/bin/pvr250-setchannel -t -m 1 -g 352x480 2 $ /bin/dd if=/dev/cxm0 of=tvo.mpeg bs=1m ^c $ tcprobe -i tvo.mpeg [tcprobe] MPEG program stream (PS) [tcprobe] summary for tvo.mpeg, (*) = not default, 0 = not detected import frame size: -g 352x480 [720x576] (*) aspect ratio: 4:3 (*) frame rate: -f 29.970 [25.000] frc=4 (*) PTS=0.4004, frame_time=33 ms, bitrate=4520 kbps audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x50 [0x2000] (*) PTS=0.2894, bitrate=384 kbps -D 3 --av_fine_ms 10 (frames & ms) [0] [0] This yields ~4.2GB/hour, far from perfect, yet we don't mind the degradation for our purposes. cheers, doug