From owner-freebsd-multimedia@FreeBSD.ORG Thu Mar 31 11:38:09 2011 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E663E106564A for ; Thu, 31 Mar 2011 11:38:09 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe02.c2i.net [212.247.154.34]) by mx1.freebsd.org (Postfix) with ESMTP id 76A298FC0A for ; Thu, 31 Mar 2011 11:38:09 +0000 (UTC) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.1 cv=oR3+9dOmPeF3nZCt5Gxyvf/bIpfj8bfjGZkkfp/xES8= c=1 sm=1 a=IU0TiZmyZPMA:10 a=8nJEP1OIZ-IA:10 a=CL8lFSKtTFcA:10 a=i9M/sDlu2rpZ9XS819oYzg==:17 a=diBokD8QJCOHbvEtsiYA:9 a=RCaU8wvSBPrxlXNQvEUA:7 a=wPNLvfGTeEIA:10 a=i9M/sDlu2rpZ9XS819oYzg==:117 Received: from [188.126.198.129] (account mc467741@c2i.net HELO laptop002.hselasky.homeunix.org) by mailfe02.swip.net (CommuniGate Pro SMTP 5.2.19) with ESMTPA id 107961494; Thu, 31 Mar 2011 13:38:07 +0200 From: Hans Petter Selasky To: Markus Rechberger Date: Thu, 31 Mar 2011 13:37:17 +0200 User-Agent: KMail/1.13.5 (FreeBSD/8.2-PRERELEASE; KDE/4.4.5; amd64; ; ) References: <201103311247.44164.hselasky@c2i.net> In-Reply-To: X-Face: *nPdTl_}RuAI6^PVpA02T?$%Xa^>@hE0uyUIoiha$pC:9TVgl.Oq, NwSZ4V"|LR.+tj}g5 %V,x^qOs~mnU3]Gn; cQLv&.N>TrxmSFf+p6(30a/{)KUU!s}w\IhQBj}[g}bj0I3^glmC( :AuzV9:.hESm-x4h240C`9=w MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201103311337.17780.hselasky@c2i.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: RFC libdvbaccess 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: Thu, 31 Mar 2011 11:38:10 -0000 On Thursday 31 March 2011 13:20:17 Markus Rechberger wrote: > Hi, > Hi, > What I was thinking was > [ kaffeine ] [ vdr ] [ mplayer ] [ tvtime ] > > [libdvbaccess] > > [ plugin for webcamd bsd ] [ plugin for our system ] [ plugin for > native linux access ] etc. Looks good. > in order to coexist - webcamd or our stack would need to be able to > report the current allocated device nodes > but that should not be a problem. > > libmediaaccess would probably be a better name for it. You are probably aware that this library would need to support V4L/DVB API's, hence having two interfaces into webcamd is more trouble than it is worth I think. Adding some parameter to register devices by libmediaccess is no problem however! > > we currently support DVB-C, DVB-T, DVB-S/S2, ATSC, ISDB-T, AnalogTV, > FM-Radio, Composite and S-Video > Your library will also support hardware transcoding of streams - right? I indulged into an USB based sat system myself using techotrend based adapters working good so far. Webcamd usually does not consume very much CPU. Something like 5% is typical for streaming. > currently we are facing performance issues for transferring a full > DVB-C transponder ~5 mb/sec, enabling hardware PID filter > to lower the bandwidth requirement works, the analog TV part still > needs to be tested on FreeBSD. > So far everything works on Linux and MacOSX. This might be a buffering issue. In the latest version of webcamd I've tuned all the buffers to reduce the interrupt rate. > > > BTW: Looking forward to your libdvbaccess! > > > > Is there any source code or API available at the present moment? > > not for libdvbaccess, just putting together some specifications/ideas > first. Ok. Do you plan to support DiSEQ's and card readers aswell? --HPS