{"id":712,"date":"2019-11-25T13:56:06","date_gmt":"2019-11-25T13:56:06","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=712"},"modified":"2019-11-25T13:56:06","modified_gmt":"2019-11-25T13:56:06","slug":"the-perfect-video-compression","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/the-perfect-video-compression\/","title":{"rendered":"The perfect video compression"},"content":{"rendered":"<p>We all like to enjoy great image quality in the videos and movies we watch on the computer, especially if you make your own compressed copies of DVD movies. I have always relied on the popular DivX but, now that there are other types of compression such as Xvid and some as modern as the H.264, it would be worth comparing to discover which one offers the best quality in the smallest size.<\/p>\n<p>&nbsp;<\/p>\n<p>For the test I have chosen the movie Transformers, released in November 2007 and directed by Michael Bay, with Shia Labeouf and Megan Fox as protagonists. It is an action movie with a variety of scenes: static in great detail, with movement, explosions, lots of color &#8230; ideal for testing. The DVD boasts a very high image quality, as evidenced by the editors of a well-known magazine.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/gordianknot.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-713\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/gordianknot-300x191.gif\" alt=\"codecs\" width=\"300\" height=\"191\" \/><\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mp4gain.com\/mp4gain\/the-perfect-video-compression\/#Choice_of_codecs_bitrates_and_encoders\" >Choice of codecs, bitrates and encoders<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mp4gain.com\/mp4gain\/the-perfect-video-compression\/#Codec_the_type_of_compression\" >Codec, the type of compression<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Choice_of_codecs_bitrates_and_encoders\"><\/span>Choice of codecs, bitrates and encoders<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To carry out the test, you have to choose different &#8220;compression methods&#8221;, each of them to several different &#8220;qualities&#8221; and using one or several programs that allow to compress in this way.<br \/>\nThings have changed a lot since in 2000 I compressed my first movie in DivX 3.11 format. It took me a whole day looking for information on the Internet on how to do it and my computer at that time (an AMD K6 II of 400Mhz) took all night to compress it in only 650 MB. Since then I have been using all versions of DivX, from 3.11 to the current 6. But the Xvid codec sounds more and more and there are excellent comments from the newest H.264, so the question is on the table: what is The best way to compress to achieve sublime image quality? Well, for this you have to discover which is the best codec and use it at the optimal bitrate with the ideal encoder. But what about that &#8220;codec&#8221;, &#8220;bitrate&#8221; and &#8220;encoder&#8221;?<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Codec_the_type_of_compression\"><\/span>Codec, the type of compression<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The &#8220;compression method&#8221; is what in the video world is called &#8220;codec&#8221;, which is the acronym for COmpresor-DECompresor, a program capable of compressing and decompressing the image in a certain way. It is something similar to what photography programs incorporate to allow them to read and write files in JPEG format, for example. The type of compression that incorporates the DVD is called MPEG-2 and is already considered somewhat old, being surpassed by the MPEG-4 standard, more modern and efficient.<br \/>\nThe problem is that there are many types of MPEG-4 and it is not clear which one is the best.<\/p>\n<p>On the one hand there is DivX (a variant of the MPEG-4 type called ASP; see official page), which is tremendously popular and more and more DVD lounge players admit it. The decompressor (necessary to watch the videos) is free, but the compressor (to generate them) is paid.<\/p>\n<p>There is also Xvid, (which is the same type as DivX; official page) a competitor of DivX (its name is the same, but vice versa) although completely free.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/handbrake.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-714\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/handbrake-300x210.gif\" alt=\"codec\" width=\"300\" height=\"210\" \/><\/a><\/p>\n<p>And finally, the very modern H.264, of the MPEG-4 AVC type, a prodigy of compression according to experts. Well, to find out which one is better, I have compared the generic MPEG-4 with these three contenders. There are several codecs to use this type of compression, but the most popular is the x264, mostly because it is free, which is what I used.<\/p>\n<p>The versions that I have used for this comparison are the following: DivX Pro v6.8.2, Xvid v1.2 and x264 revision 808.<\/p>\n<p>Bitrate, the amount of compression<\/p>\n<p>Already with each of them, you can select the &#8220;quality&#8221; image, similar to how you choose the quality between 0 and 12 when saving a JPEG file from Photoshop. The difference is that in the world of video this is known as bitrate, which is nothing more than the bit stream per second of video, and is measured in bits per second and their multiples. Since video is a succession of frames formed of pixels (ultimately bits), this parameter measures the flow of information per second; at higher flow, higher quality and vice versa. In our case, I will use measures in &#8220;kbps&#8221; (&#8220;Kb \/ s&#8221; would also work), that is, kilobits per second (be careful, don&#8217;t confuse it with KB \/ s, which would be kiloBytes per second, an 8 times larger unit).<br \/>\nIn order not to make the mistake of falling short, I have chosen 7 different bitrates, starting from an intermediate one. Taking the original DVD image, with a 720&#215;304 pixel size frame<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We all like to enjoy great image quality in the videos and movies we watch on the computer, especially if you make your own compressed copies of DVD movies. I have always relied on the popular DivX but, now that there are other types of compression such as Xvid and some as modern as the &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/the-perfect-video-compression\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The perfect video compression&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5995],"tags":[18349,18350,18348,18347,18362,18371,18385,18382,18383,18381,18384,18425,18430,18427,18426,18429,18424,18428,18333,18345,6637,18342,18344,18335,18341,18343,18346,18358,18353,18359,18357,18351,18355,18360,18352,18356,18354,18368,18363,18367,18369,18365,18364,18370,18366,18378,18373,18377,18372,18376,18337,18380,18375,18374,18379,18387,18390,18395,18389,18392,18394,18391,18388,18386,18393,18401,18402,18403,18398,18397,18396,18399,18338,18339,18400,18410,18411,18405,18409,18408,18407,18406,18413,18404,18412,18414,18420,18417,18423,18422,18416,18415,18421,18418,18419,18361,18336,18340,18334,6607],"class_list":["post-712","post","type-post","status-publish","format-standard","hentry","category-video-gain","tag-a-video-compression-format","tag-a-video-compression-is","tag-a-video-compression-meaning","tag-a-video-compression-standard","tag-b-frame-video-compression","tag-c-video-compression","tag-compression-dun-fichier-video","tag-compression-dun-video","tag-compression-dune-video","tag-compression-dune-video-en-ligne","tag-compression-dune-video-mp4","tag-h-261-video-compression","tag-h-261-video-compression-pdf","tag-h-261-video-compression-ppt","tag-h-263-video-compression","tag-h-263-video-compression-ppt","tag-h-264-video-compression","tag-h-265-video-compression","tag-video-compression","tag-video-compression-adobe-premiere","tag-video-compression-algorithms","tag-video-compression-android","tag-video-compression-api","tag-video-compression-app","tag-video-compression-app-for-android","tag-video-compression-app-for-mac","tag-video-compression-app-iphone-free","tag-video-compression-banding","tag-video-compression-based-on-motion-compensation","tag-video-compression-based-on-motion-compensation-ppt","tag-video-compression-based-on-spatio-temporal-resolution-adaptation","tag-video-compression-basics","tag-video-compression-benchmark","tag-video-compression-bit-rate-calculator","tag-video-compression-bitrate","tag-video-compression-block-diagram","tag-video-compression-book","tag-video-compression-c","tag-video-compression-calculator","tag-video-compression-chart","tag-video-compression-code","tag-video-compression-companies","tag-video-compression-comparison","tag-video-compression-competition","tag-video-compression-course","tag-video-compression-dark-scenes","tag-video-compression-dataset","tag-video-compression-dct","tag-video-compression-deep-learning","tag-video-compression-deep-learning-github","tag-video-compression-definition","tag-video-compression-demystified-pdf","tag-video-compression-diagram","tag-video-compression-download","tag-video-compression-dropbox","tag-video-compression-effect","tag-video-compression-efficiency","tag-video-compression-encoder","tag-video-compression-encoding-process","tag-video-compression-engine","tag-video-compression-engine-3-4","tag-video-compression-errors","tag-video-compression-example","tag-video-compression-explained","tag-video-compression-explanation","tag-video-compression-ffmpeg","tag-video-compression-for-android","tag-video-compression-for-email","tag-video-compression-for-instagram","tag-video-compression-for-mac","tag-video-compression-for-web","tag-video-compression-for-youtube","tag-video-compression-formats","tag-video-compression-free","tag-video-compression-free-online","tag-video-compression-gan","tag-video-compression-gateway","tag-video-compression-github","tag-video-compression-glitch","tag-video-compression-google","tag-video-compression-gop","tag-video-compression-gopro","tag-video-compression-gpu","tag-video-compression-guide","tag-video-compression-guidelines","tag-video-compression-h-264","tag-video-compression-h-264-vs-h-265","tag-video-compression-h-265","tag-video-compression-handbook","tag-video-compression-handbook-pdf","tag-video-compression-handbrake","tag-video-compression-hardware","tag-video-compression-hevc","tag-video-compression-history","tag-video-compression-how-it-works","tag-video-compression-i-b-p-frames","tag-video-compression-online","tag-video-compression-ratio","tag-video-compression-software","tag-video-compression-techniques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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