From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from a-pb-sasl-quonix.pobox.com ([208.72.237.25]:38603 "EHLO sasl.smtp.pobox.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751225Ab0DKDVP (ORCPT ); Sat, 10 Apr 2010 23:21:15 -0400 Message-ID: <4BC1401F.9080203@pobox.com> Date: Sat, 10 Apr 2010 23:21:03 -0400 From: Mark Lord MIME-Version: 1.0 To: Andy Walls CC: Hans Verkuil , linux-media@vger.kernel.org, ivtv-devel@ivtvdriver.org Subject: Re: cx18: "missing audio" for analog recordings References: <4B8BE647.7070709@teksavvy.com> <1267493641.4035.17.camel@palomino.walls.org> <4B8CA8DD.5030605@teksavvy.com> <1267533630.3123.17.camel@palomino.walls.org> <4B9DA003.90306@teksavvy.com> <1268653884.3209.32.camel@palomino.walls.org> <4BC0FB79.7080601@pobox.com> <1270940043.3100.43.camel@palomino.walls.org> In-Reply-To: <1270940043.3100.43.camel@palomino.walls.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 10/04/10 06:54 PM, Andy Walls wrote: > > Hmmm. Darren's having problems (loss of video/black screen) with my > patches under my cx18-audio repo, but I'm not quite convinced he doesn't > have some other PCI bus problem either. > > Anyway, my plan now is this: > > 1. on cx18-av-core.c:input_change() > a. set register 0x808 for audio autodetection > b. restart the format detection loop > c. set or reset a 1.5 second timeout > > 2. after the timer expires, if no audio standard was detected, > a. force the audio standard by programming register 0x808 > (e.g. BTSC for NTSC-M) > b. restart the format detection loop so the micrcontroller will > do the unmute when it detects audio > > Darren is in NTSC-M/BTSC land. What TV standard are you dealing with? .. I'm in Canada, using the tuner for over-the-air NTSC broadcasts. Cheers! -- Mark Lord Real-Time Remedies Inc. mlord@pobox.com