From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailex.mailcore.me ([94.136.40.61]:33302 "EHLO mailex.mailcore.me" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753177Ab3IQR4J (ORCPT ); Tue, 17 Sep 2013 13:56:09 -0400 Message-ID: <523897AF.6000202@sca-uk.com> Date: Tue, 17 Sep 2013 14:55:59 -0300 From: Steve Cookson MIME-Version: 1.0 To: Devin Heitmueller CC: Linux Media Mailing List , Steven Toth Subject: Re: Canvassing for Linux support for Startech PEXHDCAP References: <523769B0.6070908@sca-uk.com> <5238720B.7040106@sca-uk.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org List-ID: On 17/09/2013 12:38, Devin Heitmueller wrote: > Nope, the opposite. In order to compress the video you need to store > enough context to look for repetition. Ok, quite intuitive, once you know what to look for. > Yup. We've been through the exercise several times with various HD capture boards. Adjust the multiplier based on the level of experience of the developer doing the work. So it is do-able. That's good to know. If I want to capture 480i/576i and 1080i analogue my alternatives seem to be: - Something like Dazzle, $50 (480i/576i only - s-video and composite), - Intensity Pro, $200 (480i in s-video and composite, plus, 480i/576i & 1080i in Component but YPbPr only). S-Video and Component in 480i/576i seem to have very similar picture quality. Which leaves me with how to capture RGBS 1080i composite synch. What do you think of Epiphan VGA2USB (with the internal PCIe mounting kit)? The basic model at $299 doesn't cover RGBS, but it does do 1080i. Maybe I could use a sync splitter and inverter, like the LS1881n, to make the RGBS composite synch fit the VGA H+V pins. The LR at $799 doesn't seem to capture 1080i. I thought it did, but now I look at the website again, I can't see it. Have you used it? If not those then there is only the HR at $1,600 :( But Epiphan appears to support v4l2 and gstreamer. Is it fast? I guess it doesn't do S-Video and Composite. If not Epiphan then what? The Epixinc PIXCIŽ A310? It seems quite a hard problem. Regards Steve.