Nelson's Weblog: tech / windowsTV


Mastodon @nelson@tech.lgbt Linkblog Wed 2024-11-20 Francis Williams painting The Platonic Blow Tue 2024-11-19 EmojiRain Bantam Tools Artframe Using OSM vector tiles Starlink sold out Fine-tuning LLMs at home Bluesky starter packs Mon 2024-11-18 Carbon Mapper Sun 2024-11-17 Love, Acceptance, and Screeching Modems Voyager 1 backup radio Gay Tblisi Usenet feed growth Methane mapping City99 console font Sat 2024-11-16 Lorraine Gervais Sill Justin's Linklog Thune 2004 blog campaign Fri 2024-11-15 Open source garage door Search Archives 2023 12 11 10 09 08 07 06 05 04 03 02 01 2022 12 11 10 09 08 07 06 05 04 03 02 01 2021 12 11 10 09 08 07 06 05 04 03 02 01 2020 12 11 10 09 08 07 06 05 04 03 02 01 2019 12 11 10 09 08 07 06 05 04 03 02 01 2018 12 11 10 09 08 07 06 05 04 03 02 01 2017 12 11 10 09 08 07 06 05 04 03 02 01 2016 12 11 10 09 08 07 06 05 04 03 02 01 2015 12 11 10 09 08 07 06 05 04 03 02 01 2014 12 11 10 09 08 07 06 05 04 03 02 01 2013 12 11 10 09 08 07 06 05 04 03 02 01 2012 12 11 10 09 08 07 06 05 04 03 02 01 2011 12 11 10 09 08 07 06 05 04 03 02 01 2010 12 11 10 09 08 07 06 05 04 03 02 01 2009 12 11 10 09 08 07 06 05 04 03 02 01 2008 12 11 10 09 08 07 06 05 04 03 02 01 2007 12 11 10 09 08 07 06 05 04 03 02 01 2006 12 11 10 09 08 07 06 05 04 03 02 01 2005 12 11 10 09 08 07 06 05 04 03 02 01 2004 12 11 10 09 08 07 06 05 04 03 02 01 2003 12 11 10 09 08 07 06 05 04 03 02 01 2002 12 11 10 09 08 07 06 05 04 03 02 01 2001 12 11 10 09 08 07 One good site MDN Nelson Minar nelson@monkey.org Blog licensed under a Creative Commons License		Using Windows as a TV It's not easy to view NTSC video input on a Windows box, but thanks to Ask MetaFilter I figured out how. Here's what you need: Video capture hardware. I have a GeForce4 Ti4200 video card (from ASUS) which has a video-in/video-out (VIVO) box. S-Video source. The video card can take in composite or S-video input, but the colours in composite are so awful that it's not worth the effort. S-Video isn't too bad. A WDM driver for the video capture hardware. Software to display the video capture. I like ATV2000, but I'm still looking for alternatives. Put it all together and your video is now showing on your screen, where you can watch it, record it, filter it, etc. Some tweaking improves quality. I found that it looked best if I ran the capture at 640x480 and my display at 1280x960@60Hz. That's a nice even 2x size multiple and (almost) the same refresh rate as the source. Running at, say, 1024x768@85Hz introduced lots of ugly interlace-related shimmer. It's amazing how complicated this is. It's a lot of data: I'm surprised my PC can record full motion video to hard drive. And the NTSC input is in an awful format. The interlacing is the worst of it, here's a nice visual explanation. There's a neat program called DScaler that tries to deinterlace the video before displaying. That gives a much sharper still picture but in regions of high motion you get awful judder. I gave up on it. Progressive scan HDTV is the only rational thing. tech 2004-11-07 17:46 Z Nelson's Weblog • tech → ago, bad, bittorrent, blosxom, dotnet, good, hqnx, iphone, mac, phone, photo, python, webservices