From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from ns207790.ip-94-23-215.eu ([94.23.215.26]:42246 "EHLO ns207790.ip-94-23-215.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751747AbaKDMuX (ORCPT ); Tue, 4 Nov 2014 07:50:23 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Tue, 04 Nov 2014 15:42:37 +0300 From: =?UTF-8?Q?R=C3=A9mi_Denis-Courmont?= To: Sakari Ailus Cc: Grazvydas Ignotas , , Laurent Pinchart , Hans Verkuil , Mauro Carvalho Chehab Subject: Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9 In-Reply-To: <20141104115839.GN3136@valkosipuli.retiisi.org.uk> References: <20141102225704.GM3136@valkosipuli.retiisi.org.uk> <20141104115839.GN3136@valkosipuli.retiisi.org.uk> Message-ID: Sender: linux-media-owner@vger.kernel.org List-ID: Le 2014-11-04 14:58, Sakari Ailus a écrit : >> > Have you tried with a different application to see if the problem >> persists? >> >> Tried mplayer and cheese now, and it seems they are not affected, so >> it's an issue with vlc. I wonder why it doesn't like newer flags.. >> >> Ohwell, sorry for the noise. > > I guess the newer VLC could indeed pay attention to the monotonic > timestamp > flag. Remi, any idea? VLC takes the kernel timestamp, if monotonic, since version 2.1. Otherwise, it generates its own inaccurate timestamp. So either that code is wrong, or the kernel timestamps are. -- Rémi Denis-Courmont