From owner-freebsd-multimedia@FreeBSD.ORG Sun Feb 14 14:11:42 2010 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 950011065670 for ; Sun, 14 Feb 2010 14:11:42 +0000 (UTC) (envelope-from me@janh.de) Received: from mailhost.uni-hamburg.de (mailhost.uni-hamburg.de [134.100.32.155]) by mx1.freebsd.org (Postfix) with ESMTP id 1C9438FC0A for ; Sun, 14 Feb 2010 14:11:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mailhost.uni-hamburg.de (Postfix) with ESMTP id 37CDA90158; Sun, 14 Feb 2010 15:11:41 +0100 (CET) X-Virus-Scanned: by University of Hamburg (RRZ/mailhost) Received: from mailhost.uni-hamburg.de ([127.0.0.1]) by localhost (mailhost.uni-hamburg.de [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 7fkl89SOs36Z; Sun, 14 Feb 2010 15:11:41 +0100 (CET) Received: from jeee.freebsd (e177254121.adsl.alicedsl.de [85.177.254.121]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: fmjv004) by mailhost.uni-hamburg.de (Postfix) with ESMTPSA id C1AA49015C; Sun, 14 Feb 2010 15:11:40 +0100 (CET) Message-ID: <4B7804B3.4000903@janh.de> Date: Sun, 14 Feb 2010 15:12:03 +0100 From: Jan Henrik Sylvester User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.9.1.7) Gecko/20100207 Thunderbird/3.0.1 MIME-Version: 1.0 To: Hans Petter Selasky References: <4B77FC79.5040106@janh.de> <201002141444.13674.hselasky@c2i.net> In-Reply-To: <201002141444.13674.hselasky@c2i.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: multimedia-list freebsd Subject: Re: DVB-T with Cuse4BSD: bad signal quality 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: Sun, 14 Feb 2010 14:11:42 -0000 On 02/14/2010 14:44, Hans Petter Selasky wrote: > On Sunday 14 February 2010 14:36:57 Jan Henrik Sylvester wrote: >> After I tried video4bsd last weekend for the first time and was able to >> make my webcam work, but not my DVB-T device. This weekend, I found >> Cuse4BSD on your homepage replacing video4bsd. >> >> Now my DVB-T stick basically work. Thanks a lot for all your effort! >> >> I wanted to complain about the firmware path being /, but since you >> added the '-f' switch that comes down to the rather unimportant default >> being / and not -- for example -- /boot/modules/. Having to call webcamd >> twice, once to load the firmware and once to actually do its job is a >> little counter intuitive. >> >> My major problem at the moment is the quality of the signal. That has >> always been dependent on the location of the antenna in my apartment, >> but I just tried Raaf's dvbusb driver under FreeBSD 7 without having any >> distortions and immediately booted back into FreeBSD 8: The distortions >> are so high that it is unwatchable and after a few seconds audio and >> video are out of sync using Raaf's typhony (Kaffeine seems a little >> better at keeping the streams at sync even with a bad signal). >> >> I already checked the system load on my atom based system: 15% user, 10% >> system, 70% idle (8% python, 8% mplayer, 4% webcamd) or 15% user, 20% >> system, 60% idle (20% kaffeine, 7% webcamd, 5% Xorg) -- that does not >> seem problematic. (I thought with the driver now partially in user space >> there might be higher load than before due to context switching.) >> >> I am currently on FreeBSD 8.0-RELEASE with the libusb patch you >> advertised last week on your homepage. I would not like to bring my atom >> based system to 8-STABLE or 9-CURRENT. Would that help? >> >> Any idea or fix for my distortions? > > It might be that the Linux driver is setting up to small buffers. I have some > patches for some of the V4L drivers, but not all. What is the VID+PID of your > device? > > usbconfig -u X -a Y dump_device_desc ugen4.4: at usbus4, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON bLength = 0x0012 bDescriptorType = 0x0001 bcdUSB = 0x0200 bDeviceClass = 0x0000 bDeviceSubClass = 0x0000 bDeviceProtocol = 0x0000 bMaxPacketSize0 = 0x0040 idVendor = 0x14aa idProduct = 0x0226 bcdDevice = 0x0521 iManufacturer = 0x0001 iProduct = 0x0002 iSerialNumber = 0x0003 <20060503> bNumConfigurations = 0x0001 (I will not be able to answer anymore for a few hours.) Cheers, Jan Henrik