{"id":576,"date":"2008-07-25T22:40:59","date_gmt":"2008-07-26T06:40:59","guid":{"rendered":"http:\/\/multimedia.cx\/eggs\/video-encoding-tests\/"},"modified":"2008-07-29T08:56:07","modified_gmt":"2008-07-29T16:56:07","slug":"video-encoding-tests","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/video-encoding-tests\/","title":{"rendered":"Video Encoding Tests"},"content":{"rendered":"<p>In case you don&#8217;t carefully track <a href=\"http:\/\/ffmpeg.org\/\">FFmpeg<\/a> development, much recognition goes out to <a href=\"http:\/\/guru.multimedia.cx\/\">Michael<\/a> for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92\/136 of the suite&#8217;s vectors across <a href=\"http:\/\/fate.multimedia.cx\/\">all supported configurations<\/a>.<\/p>\n<p>Also, <em>finally<\/em>, I have started to add encoding tests to FATE. The first test is designated <a href=\"http:\/\/fate.multimedia.cx\/index.php?test_spec=157\">idroq-video-encode<\/a>. I was stuck on this for awhile while I tried to understand what sort of test material I should use. I eventually realized that there are perfectly adequate (and stunningly complicated) images already generated by FFmpeg&#8217;s videogen.c program that is built and run by &#8216;make test&#8217;. If you are not familiar, they look like this:<\/p>\n<p><center><br \/>\n<img decoding=\"async\" src=\"\/eggs\/images\/ffmpeg-vsynth1-01.jpg\" alt=\"FFmpeg vsynth1 image\" \/><br \/>\n<\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In case you don&#8217;t carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92\/136 of the suite&#8217;s vectors [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101,3],"tags":[],"class_list":["post-576","post","type-post","status-publish","format-standard","hentry","category-fate-server","category-open-source-multimedia"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"In case you don&#039;t carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92\/136 of the suite&#039;s vectors\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Multimedia Mike\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/multimedia.cx\/eggs\/video-encoding-tests\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Breaking Eggs And Making Omelettes | Topics On Multimedia Technology and Reverse Engineering\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Video Encoding Tests | Breaking Eggs And Making Omelettes\" \/>\n\t\t<meta property=\"og:description\" content=\"In case you don&#039;t carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92\/136 of the suite&#039;s vectors\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/multimedia.cx\/eggs\/video-encoding-tests\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2008-07-26T06:40:59+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2008-07-29T16:56:07+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Video Encoding Tests | Breaking Eggs And Making Omelettes\" \/>\n\t\t<meta name=\"twitter:description\" content=\"In case you don&#039;t carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92\/136 of the suite&#039;s vectors\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#article\",\"name\":\"Video Encoding Tests | Breaking Eggs And Making Omelettes\",\"headline\":\"Video Encoding Tests\",\"author\":{\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/author\\\/multimedia-mike\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"\\\/eggs\\\/images\\\/ffmpeg-vsynth1-01.jpg\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#articleImage\"},\"datePublished\":\"2008-07-25T22:40:59-07:00\",\"dateModified\":\"2008-07-29T08:56:07-07:00\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#webpage\"},\"articleSection\":\"FATE Server, Open Source Multimedia\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/multimedia.cx\\\/eggs\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/category\\\/open-source-multimedia\\\/#listItem\",\"name\":\"Open Source Multimedia\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/category\\\/open-source-multimedia\\\/#listItem\",\"position\":2,\"name\":\"Open Source Multimedia\",\"item\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/category\\\/open-source-multimedia\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#listItem\",\"name\":\"Video Encoding Tests\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#listItem\",\"position\":3,\"name\":\"Video Encoding Tests\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/category\\\/open-source-multimedia\\\/#listItem\",\"name\":\"Open Source Multimedia\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/#organization\",\"name\":\"Breaking Eggs And Making Omelettes\",\"description\":\"Topics On Multimedia Technology and Reverse Engineering\",\"url\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/author\\\/multimedia-mike\\\/#author\",\"url\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/author\\\/multimedia-mike\\\/\",\"name\":\"Multimedia Mike\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2eb93f7cada658f7986b5092062849fa255779eada3342c8f6b9a40764b95fdd?s=96&d=identicon&r=g\",\"width\":96,\"height\":96,\"caption\":\"Multimedia Mike\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/#webpage\",\"url\":\"https:\\\/\\\/multimedia.cx\\\/eggs\\\/video-encoding-tests\\\/\",\"name\":\"Video Encoding Tests | Breaking Eggs And Making Omelettes\",\"description\":\"In case you don't carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. 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