From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.228]:37925 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752121AbaE1Byo (ORCPT ); Tue, 27 May 2014 21:54:44 -0400 Received: from [192.168.10.3] (cpe-174-101-197-173.cinci.res.rr.com [174.101.197.173]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by conserv.silverdirk.com (Postfix) with ESMTPSA id 9A11F69E6 for ; Tue, 27 May 2014 21:47:37 -0400 (EDT) Message-ID: <53854038.1020305@nrdvana.net> Date: Tue, 27 May 2014 21:47:36 -0400 From: Michael Conrad MIME-Version: 1.0 To: linux-media@vger.kernel.org Subject: Any USB chip that delivers 60fps? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi, I'm looking for any USB-connected device that can give me 60fps from a NTSC signal. I'm either looking for a chip+driver that support V4L2_FIELD_ALTERNATE (which I gather are rare) so that I can construct my own frames at 60Hz by blending each pair of neighboring fields, or ideally, to find hardware or driver that does a good job of it for me. Why NTSC you ask? because I can find high quality cameras that work great in low-light scenarios, where most USB cameras fall flat. And as a follow-up question, is it possible and how hard would it be to add V4L2_FIELD_ALTERNATE support to one of the EasyCap drivers? Does the hardware de-interlace the frames on its own or is that in software? Thanks, -Mike