Return-Path: Message-ID: <44A29F2F.7020801@xmission.com> Date: Wed, 28 Jun 2006 09:24:31 -0600 From: Brad Midgley MIME-Version: 1.0 To: BlueZ development References: <6297d67c0606272049g55cc14cby52254c90863e727f@mail.gmail.com> <6297d67c0606280257y1cda0a8bj5ebdec42e3b1079@mail.gmail.com> In-Reply-To: <6297d67c0606280257y1cda0a8bj5ebdec42e3b1079@mail.gmail.com> Subject: Re: [Bluez-devel] A2DP a2play and a2recv Reply-To: BlueZ development List-Id: BlueZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: bluez-devel-bounces@lists.sourceforge.net Errors-To: bluez-devel-bounces@lists.sourceforge.net guys first off, make sure you configure with --enable-fixed so you get the fixed-point sbc library. > Thanks for reply. can a2play run on OSS too? not directly. if you know what you're doing, you could use dynamic loading tricks to make writes to /dev/dsp go to custom code based on a2play. it would be easier to modify the audio apps themselves. you may be able to do that on your embedded platform. > I ported BlueZ on an embeded ARM7 running at 80 MHz. > I also try a2recv on embeded board with sound chip using OSS > driver. Printout looks ok, but can't hear anything: it could be the cpu is too busy or the oss writes aren't right. I'm not sure 80Mhz is fast enough. There are a couple more sbc optimizations in the list of things to do. - rework encoder to avoid moving values around (follow model from decoder) - use a log2 table for byte integer scale factors calculation (sum log2 results for high and low bytes) - fill bitpool by 16 bits instead of one at a time in bits allocation/bitpool generation Brad Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel