{"id":149,"date":"2005-11-15T17:06:05","date_gmt":"2005-11-16T00:06:05","guid":{"rendered":"http:\/\/multimedia.cx\/eggs\/?p=149"},"modified":"2005-11-21T14:05:43","modified_gmt":"2005-11-21T21:05:43","slug":"microsoft-video-1-based-on-dct","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/microsoft-video-1-based-on-dct\/","title":{"rendered":"Microsoft Video-1 Based on DCT?"},"content":{"rendered":"<p>I recently learned that <a href=\"http:\/\/en.wikipedia.org\">Wikipedia<\/a> has an entry for <a href=\"http:\/\/en.wikipedia.org\/wiki\/Video1\">Microsoft Video-1<\/a>. The entry makes two assertions of which I was heretofore unaware:<\/p>\n<ol>\n<li>the codec was licensed from Media Vision and is based on a codec called MotiVE<\/li>\n<li>the codec was based on the discrete cosine transform (DCT)<\/li>\n<\/ol>\n<p>I can accept assertion #1 but I have trouble with the second. I just don&#8217;t see it. Per my understanding Video-1 falls into the category of vector quantizer. I did a quick Google search for &#8220;media vision motive cosine&#8221; to search for supporting details. <a href=\"http:\/\/chanae.walon.org\/pub\/docs\/technical.info\/codec.htm\">This page supports<\/a> the DCT claim. But it also claims that Duck TrueMotion 1 is a vector quantizer (nope). <a href=\"http:\/\/home.earthlink.net\/~champions\/m.htm\">Here is another page<\/a> that mentions the MotiVE connection but pegs Video-1 as a vector quantizer.<\/p>\n<p>At least the Wikipedia article <a href=\"http:\/\/multimedia.cx\/video1.txt\">links to my Video-1 description<\/a> so interested parties can investigate the details for themselves.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some say that Microsoft Video-1 is based on the discrete cosine transform&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-codec-technology"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/comments?post=149"}],"version-history":[{"count":0,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/149\/revisions"}],"wp:attachment":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/media?parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/categories?post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/tags?post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}