{"id":154,"date":"2005-11-27T23:10:49","date_gmt":"2005-11-28T06:10:49","guid":{"rendered":"http:\/\/multimedia.cx\/eggs\/?p=154"},"modified":"2005-11-27T23:15:14","modified_gmt":"2005-11-28T06:15:14","slug":"gdv-video-doc-complete","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/gdv-video-doc-complete\/","title":{"rendered":"GDV Video Doc Complete (?)"},"content":{"rendered":"<p>To the best of my knowledge, I have finished <a href=\"http:\/\/multimedia.cx\/gdv-format.txt\">documenting both the GDV file format and the associated video coding format<\/a>. Now let&#8217;s see who can first implement a file demuxer and video decoder for the format. Remember, <a href=\"http:\/\/www.multimedia.cx\/samples\/gdv\/\">samples are here<\/a>.<\/p>\n<p>The only part of the video decoding process that gives me pause is in coding method 8 where the decoder copies a run a pixels from an offset that&#8217;s further in the image buffer than the current decoded offset. I believe this is assuming that the current buffer also holds the previously decoded frame. If true, this constitutes a run-based interframe motion compensation scheme.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Go ahead and try to implement a GDV decoder&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-154","post","type-post","status-publish","format-standard","hentry","category-reverse-engineering"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/154","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=154"}],"version-history":[{"count":0,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/154\/revisions"}],"wp:attachment":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/media?parent=154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/categories?post=154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/tags?post=154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}