From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mta3.srv.hcvlny.cv.net ([167.206.4.198]:36599 "EHLO mta3.srv.hcvlny.cv.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753390AbZBQWaH (ORCPT ); Tue, 17 Feb 2009 17:30:07 -0500 Received: from steven-toths-macbook-pro.local (ool-45721e5a.dyn.optonline.net [69.114.30.90]) by mta3.srv.hcvlny.cv.net (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) with ESMTP id <0KF800CJVEHSM510@mta3.srv.hcvlny.cv.net> for linux-media@vger.kernel.org; Tue, 17 Feb 2009 17:29:54 -0500 (EST) Date: Tue, 17 Feb 2009 17:29:52 -0500 From: Steven Toth Subject: Re: PVR x50 corrupts ATSC 115 streams In-reply-to: <412bdbff0902171305j26827e3fp2852f3774a788a67@mail.gmail.com> To: Devin Heitmueller Cc: David Engel , linux-media@vger.kernel.org, V4L Message-id: <499B3A60.90306@linuxtv.org> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT References: <20090217155335.GB6196@opus.istwok.net> <499AE054.6020608@linuxtv.org> <20090217201740.GA9385@opus.istwok.net> <499B1E19.80302@linuxtv.org> <20090217205629.GA9722@opus.istwok.net> <412bdbff0902171305j26827e3fp2852f3774a788a67@mail.gmail.com> Sender: linux-media-owner@vger.kernel.org List-ID: Devin Heitmueller wrote: > On Tue, Feb 17, 2009 at 3:56 PM, David Engel wrote: >> I have anohter system, with only an ATSC 115 and a video card. It has >> nearly identical numbers from femon as the system with the PVRs. > > Didn't the PVR-250/350 have some sort of PCI DMA issues? (I thought I > remember reading that couple of years ago but I may be crazy). If > so, then that wouldn't show up with femon, as the demod and tuner > would be capturing fine, but then the packets would never make it back > to the host. > > The driver is probably buggy. Either its really reporting pre-viterbi errors OR it's reporting real post-viterbi errors - but in which case why aren't we also measuring uncorrected blocks? Regardless of Davids actual current problem, this sounds like a secondary unrelated issue. - Steve