From owner-freebsd-multimedia@FreeBSD.ORG Mon Apr 25 02:21:49 2005 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2F84316A4CE for ; Mon, 25 Apr 2005 02:21:49 +0000 (GMT) Received: from vette.gigo.com (vette.gigo.com [216.218.228.114]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6F01343D46 for ; Mon, 25 Apr 2005 02:21:48 +0000 (GMT) (envelope-from lioux@uol.com.br) Received: from 200.140.3.246 (unknown [200.140.3.246]) by vette.gigo.com (Postfix) with ESMTP id 67730546C for ; Sun, 24 Apr 2005 19:21:47 -0700 (PDT) Received: (qmail 48778 invoked by uid 1001); 25 Apr 2005 02:10:58 -0000 Message-ID: <20050425021058.48738.qmail@exxodus.fedaykin.here> Date: Sun, 24 Apr 2005 23:10:36 -0300 From: Mario Sergio Fujikawa Ferreira To: freebsd-multimedia@freebsd.org References: <20050421021909.28497.qmail@exxodus.fedaykin.here> <20050421102551.12ebb916.steve@sohara.org> <20050421095950.GB3188@puff.jakemsr.gom> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="x+6KMIRAuhnl3hBn" Content-Disposition: inline In-Reply-To: <20050421095950.GB3188@puff.jakemsr.gom> User-Agent: Mutt/1.5.9i Subject: Re: Help with TV capture (mplayer/brooktree/audigy) X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Apr 2005 02:21:49 -0000 --x+6KMIRAuhnl3hBn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 21, 2005 at 02:59:28AM -0700, Jacob Meuser wrote: > On Thu, Apr 21, 2005 at 10:25:51AM +0100, Steve O'Hara-Smith wrote: >=20 > > > 2) Every few seconds the video stream seems to choke; thus, > > > giving me an effect similar to the famous interlaced "blinders > > > effect" so I added a deinterlacer filter > >=20 > > Sync detection problems perhaps. >=20 > this can be tweaked a bit. >=20 > look for SYNC_LEVEL in the driver. try ADC_CRUSH instead of ADC_SYNC_T. >=20 > to me, it is a bit less interlaced looking. the linux bttv uses either > ADC_CRUSH or 0 for this, BTW. I'm building a kernel right now with this modification to /usr/src/sys/dev/bktr/bktr_core.c Any other indications on what we could do INSIDE the driver to make more reliable, some improvements at the signal handling...etc? I am not advocating adding a ring buffer there since that it is more appropriate for application level than kernel driver interface. Though it is alwaays something to propose in both FreeBSD-arch and FreeBSD-multimedia I am open for suggestions. Let me know if there are other hacks you think would be helpful. Regards. --=20 Mario S F Ferreira - DF - Brazil - "I guess this is a signature." feature, n: a documented bug | bug, n: an undocumented feature --x+6KMIRAuhnl3hBn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCbFGyrxEiaFLzGQwRAlEdAJ9DV2GtUkpFMfUK8ho6MCgZRej60wCfQxyT EZ7JQkxqHAJJO538pbwZ528= =WJnt -----END PGP SIGNATURE----- --x+6KMIRAuhnl3hBn--