{"id":1338,"date":"2020-05-27T01:56:55","date_gmt":"2020-05-27T01:56:55","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1338"},"modified":"2020-05-27T01:56:55","modified_gmt":"2020-05-27T01:56:55","slug":"what-is-video-encoding-and-how-does-it-work","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/","title":{"rendered":"What is video encoding and how does it work?"},"content":{"rendered":"<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\/what-is-video-encoding-and-how-does-it-work\/#The_technique_of_compressing_videos\" >The technique of compressing videos<\/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\/what-is-video-encoding-and-how-does-it-work\/#Why_is_video_coding_so_important\" >Why is video coding so important?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/#But_what_is_the_best_codec\" >But what is the best codec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/#Compression_techniques\" >Compression techniques<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"The_technique_of_compressing_videos\"><\/span>The technique of compressing videos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>What do we mean when we talk about video coding or, as industry experts generally call it, video coding?<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/YT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1176\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/YT.jpg\" alt=\"YOUTUBE VIDEO FORMAT\" width=\"310\" height=\"163\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/YT.jpg 310w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/YT-300x158.jpg 300w\" sizes=\"auto, (max-width: 310px) 85vw, 310px\" \/><\/a><\/p>\n<p>Simply put, video encoding is the process of compressing and converting video content. The ultimate goal is to use less storage space, use less bandwidth, and make the user experience smoother. It goes without saying that the compression process causes a significant loss of information. The more data that is applied, the more data is deleted in the video. The result is a different version of the original due to missing data.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/yt.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1203\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/yt.jpg\" alt=\"mp4 videos\" width=\"825\" height=\"330\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/yt.jpg 825w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/yt-300x120.jpg 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/yt-768x307.jpg 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_is_video_coding_so_important\"><\/span>Why is video coding so important?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Video encoding is essential for transmission because it simplifies the transmission of video on the Internet through a compression process. Compression reduces the bandwidth required while providing a high quality experience. Without this, raw video content would not allow many users to view content on the Internet due to insufficient connection speeds. The protagonist of this process is the bit rate or the speed of digital data transmission that can be transmitted in a certain time interval in a communication channel. When streaming, the bit rate determines whether users can easily view the content or are exposed to video buffering.<\/p>\n<p>Another fundamental aspect of video coding is compatibility. Indeed, sometimes the content is already compressed to an appropriate size, but it still needs to be encoded to be compatible with different devices and applications, although this is often referred to as transcoding.<\/p>\n<p>The video encoding process is governed by video codecs, which are compression standards that are created through software or hardware applications. Each codec consists of an encoder for compressing the video and a decoder for restoring an approximation of the video for playback. The name codec is actually derived from the merging of the words &#8220;encoder&#8221; and &#8220;decoder&#8221;.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"But_what_is_the_best_codec\"><\/span>But what is the best codec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It depends on the type of video. On this occasion we will describe the most commonly used.<\/p>\n<p>To stream high quality video over the Internet, H.264 is arguably the most widely used codec for most multimedia traffic. This codec is considered to be of excellent quality, coding speed and compression efficiency, although it is not as efficient as the later HEVC (High Efficiency Video Coding) compression standard, also known as H.265. H.264 also supports 4K video streaming, a real advance for a codec created in 2003.<\/p>\n<p>Now that we have an overview of codecs, let&#8217;s look at some compression techniques.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Compression_techniques\"><\/span>Compression techniques<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The most common compression technique is scaling the resolution. The higher the resolution of a video, the more information is contained in each picture. One way to reduce the amount of data is to reduce the size of the image and then scan it again. As a result, fewer pixels are generated, which reduces the level of detail of the image, which has a positive effect on the amount of information required. This process allows you to set multiple quality levels for a video that correspond to different resolutions created. A practical example is if you are watching a movie in streaming before playing it, you can actually choose the resolution at which you want to watch it, provided your device<br \/>\nSupport him<\/p>\n<p>One video compression technique that may not be widely used is the interframe. This process reduces &#8220;redundant&#8221; information from one frame to another.<\/p>\n<p>Another technique is the P-frame, short for predictive frame, which means that it can look back at an i-frame or another P-frame and understand whether the same images are present. In this case, this part is excluded for reasons of space.<\/p>\n<p>B-Frame, on the other hand, is the bidirectional predictive frame that offers good compression without affecting the viewing experience. However, this technique requires a higher coding profile.<\/p>\n<p>Another technique is that which makes it possible to intervene in the color. This process, called &#8220;chroma subsampling&#8221;, tries to maintain the brightness of the image, which affects the quality of the color. Finally, another method of compressing videos is to reduce the number of frames per second.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The technique of compressing videos What do we mean when we talk about video coding or, as industry experts generally call it, video coding? Simply put, video encoding is the process of compressing and converting video content. The ultimate goal is to use less storage space, use less bandwidth, and make the user experience smoother. &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What is video encoding and how does it work?&#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":[26909],"tags":[27903,27872,27873,27907,20993,27909,20992,33001,27908,20991,27910,20989,20990,27899,24545,33003,24589,24550,24560,24556,24558,24555,27904,33000,24554,27905,33002,24580,24596,32998,32999,24598,24593,24595,24594,24591,27912,24600,24623,24636,33004,23848,6759,27913,27917,27875,24553,27884,27883,33005,27885,27881,27878,27836,27886,27868,27914,27869,27870,27876,27877,27879,27880,27874,27892,27888,27891,27890,27889,27895,27894,27896,27900,27901,33006,27893,27902],"class_list":["post-1338","post","type-post","status-publish","format-standard","hentry","category-codec","tag-audio-compression-after-effects","tag-audio-compression-can-be-used-for","tag-audio-compression-can-be-used-for-mcq","tag-audio-compression-down","tag-audio-compression-final-cut-pro-x","tag-audio-compression-for-broadcast","tag-audio-compression-for-dummies","tag-audio-compression-for-gaming","tag-audio-compression-for-live-streaming","tag-audio-compression-for-podcast","tag-audio-compression-for-speech","tag-audio-compression-for-streaming","tag-audio-compression-for-tv","tag-audio-compression-format","tag-audio-compression-history","tag-audio-compression-in-camtasia","tag-audio-compression-in-computer-networks","tag-audio-compression-in-hindi","tag-audio-compression-in-imovie","tag-audio-compression-in-internet","tag-audio-compression-in-matlab","tag-audio-compression-in-multimedia","tag-audio-compression-in-multimedia-pdf","tag-audio-compression-in-multimedia-tutorials-point","tag-audio-compression-in-premiere-pro","tag-audio-compression-in-python","tag-audio-compression-in-zoom","tag-audio-compression-mp3","tag-audio-compression-on-android","tag-audio-compression-on-audacity","tag-audio-compression-on-facebook-live","tag-audio-compression-on-ipad","tag-audio-compression-on-iphone","tag-audio-compression-on-matlab","tag-audio-compression-on-or-off","tag-audio-compression-on-sonos","tag-audio-compression-opposite","tag-audio-compression-premiere-pro","tag-audio-compression-rate","tag-audio-compression-settings","tag-audio-compression-vs-lossless","tag-audio-format-without-compression","tag-audio-normalization-vs-compression","tag-audio-over-compression","tag-audio-with-compression","tag-do-i-need-audio-compression","tag-does-audio-compression-help","tag-how-audio-compression-is-carried-out-in-mp3","tag-how-audio-compression-works","tag-how-audio-file-compression-works","tag-how-compression-audio","tag-how-does-audio-compression-ratio-work","tag-how-does-audio-compression-work","tag-how-does-lossless-audio-compression-work","tag-how-to-use-audio-compression","tag-is-audio-compression-lossless","tag-pro-audio-compression-drivers","tag-what-are-audio-compression-format","tag-what-are-the-audio-compression-techniques","tag-what-does-audio-compression-do","tag-what-does-audio-compression-do-in-camtasia","tag-what-does-audio-compression-mean","tag-what-does-audio-compression-sound-like","tag-what-is-audio-compression","tag-what-is-audio-compression-in-camtasia","tag-what-is-audio-compression-in-multimedia","tag-what-is-audio-compression-ratio","tag-what-is-audio-compression-sonos","tag-what-is-audio-compression-used-for","tag-when-to-use-audio-compression","tag-when-was-audio-compression-invented","tag-which-is-the-best-audio-compression-format","tag-who-invented-audio-compression","tag-why-audio-compression-is-needed","tag-why-audio-compression-is-required","tag-why-is-audio-compression-important","tag-why-use-audio-compression"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is video encoding and how does it work? - mp4gain.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is video encoding and how does it work? - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"The technique of compressing videos What do we mean when we talk about video coding or, as industry experts generally call it, video coding? 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Arias\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"caption\":\"R. Arias\"},\"description\":\"R. Arias is the author of this article and has extensive experience for more than 30 years as a recording engineer and audio specialist, as well as more than 20 years of experience creating algorithms related to audio and video. Linkedin\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/ricardoariaszorrilla\/\"],\"url\":\"https:\/\/mp4gain.com\/mp4gain\/author\/mp4gain\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What is video encoding and how does it work? - mp4gain.com","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/","og_locale":"en_US","og_type":"article","og_title":"What is video encoding and how does it work? - mp4gain.com","og_description":"The technique of compressing videos What do we mean when we talk about video coding or, as industry experts generally call it, video coding? Simply put, video encoding is the process of compressing and converting video content. The ultimate goal is to use less storage space, use less bandwidth, and make the user experience smoother. &hellip; Continue reading \"What is video encoding and how does it work?\"","og_url":"https:\/\/mp4gain.com\/mp4gain\/what-is-video-encoding-and-how-does-it-work\/","og_site_name":"mp4gain.com","article_publisher":"https:\/\/www.facebook.com\/mp4gain","article_published_time":"2020-05-27T01:56:55+00:00","og_image":[{"url":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/YT.jpg","type":"","width":"","height":""}],"author":"R. Arias","twitter_card":"summary_large_image","twitter_creator":"@mp4gain","twitter_site":"@mp4gain","twitter_misc":{"Written by":"R. 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