{"id":569,"date":"2019-09-15T22:27:08","date_gmt":"2019-09-15T22:27:08","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=569"},"modified":"2019-09-15T22:27:08","modified_gmt":"2019-09-15T22:27:08","slug":"differences-between-codec-and-container","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/","title":{"rendered":"Differences between Codec and container"},"content":{"rendered":"<p>Confusion between codec and container is very common. And even more if we add file extensions, such as .flv, .mp3, .mp4, etc.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-570\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164-300x193.jpg\" alt=\"codecs and containers\" width=\"300\" height=\"193\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164-300x193.jpg 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164-768x493.jpg 768w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164.jpg 900w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/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\/differences-between-codec-and-container\/#What_is_a_codec\" >What is a codec?<\/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\/differences-between-codec-and-container\/#What_is_a_container\" >What is a container?<\/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\/differences-between-codec-and-container\/#Connection\" >Connection<\/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\/differences-between-codec-and-container\/#The_most_popular\" >The most popular<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_codec\"><\/span>What is a codec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it. For example, a codec determines how video and audio information is compressed and decompressed. Remember that compression is a specific case of coding in which space is reduced, eliminating redundant or low perceptual impact information.<\/p>\n<p>Coding means something like compressing. That is, it seeks to reduce the amount of bits that an audio file occupies. The idea is to reduce the amount of bits while maintaining the highest possible audio quality.<\/p>\n<p>Obviously, once the files have been compressed, they need the counterpart, which becomes the decoder that is the one that can interpret and reconvert in sound what was written in the file.<\/p>\n<p>Then, a codec is one that serves to compress and decompress (encode and decode) an audio or video file.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-571\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1-300x171.png\" alt=\"\" width=\"300\" height=\"171\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1-300x171.png 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1-768x436.png 768w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1-1024x582.png 1024w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/1200px-Opus_logo2.svg_-1.png 1200w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_container\"><\/span>What is a container?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Within the multimedia scope, a container is a specification on how different types of encoded multimedia content are sorted within a file. These different contents are usually, mainly, video, audio and text.<\/p>\n<p>Consider the case of a movie in digital format. This movie is in a file. When we open that file, a player runs and we can enjoy the movie. Notice that a movie has video, has audio, subtitles, information about its author, information about its duration, etc. For the convenience of the user, all these elements are grouped into a single file. The order in which they are saved in that file is the container specification.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Connection\"><\/span>Connection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The video information that is inside a container is usually compressed, that is, it usually follows the specification of a specific codec. The same goes for audio information. The confusion appears when there are containers and codecs with very similar or even equal names.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_most_popular\"><\/span>The most popular<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The most popular video codecs currently are Theora, VP8, MPEG-2, h.264, Xvid and Divx. Regarding audio codecs: AAC, FLAC, MP3, Vorbis (ogg) and WMA are the most abundant.<\/p>\n<p>The most commonly used containers are AVI, Divx, Matroska, Flash video, MP4, MPEG, Ogg, Quicktime, MXF and WebM. Since the containers are intrinsically linked to the files, each of them also specifies one or several possible file extensions:<\/p>\n<p>AVI -&gt; .avi<br \/>\nDivx -&gt; .divx<br \/>\nMatroska -&gt; .mkv, .mk3d, .mka, .mks<br \/>\nFlash video -&gt; .flv, .f4v<br \/>\nMP4 -&gt; .mp4<br \/>\nMPEG -&gt; .mpg, .mpeg<br \/>\nOgg -&gt; .ogg<br \/>\nQuicktime -&gt; .mov, .qt<br \/>\nMXF -&gt; .mxf<br \/>\nWebM -&gt; .webm<\/p>\n<p>And to open a container and see its contents?<\/p>\n<p>The containers are interpreted through a media player application, such as Windows Media Player, Quicktime (application with the same name as a container), VLC, Plex, RealPlayer or Winamp, to name a few .<\/p>\n<p>A good option is the VLC player, as it offers compatibility with all formats under almost any platform and even allows you to play incomplete files (useful feature if you want to start playing an audiovisual content that has not yet finished downloading, provided that this be progressive). In addition, it is freely distributed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Confusion between codec and container is very common. And even more if we add file extensions, such as .flv, .mp3, .mp4, etc. What is a codec? The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Differences between Codec and container&#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":[4249],"tags":[13716,13718,13706,13707,13702,13701,13717,13711,13704,13703,13715,13712,13714,13710,13709,13708,13705,13713,13719],"class_list":["post-569","post","type-post","status-publish","format-standard","hentry","category-mp3gain-2","tag-codec-container-unterschied","tag-codec-vs-container-format","tag-codecs-and-containers","tag-codecs-and-containers-explained","tag-codecs-containers-explained","tag-codecs-containers-formats","tag-codecs-und-container","tag-compare-codecs-and-containers","tag-containers-and-codecs","tag-containers-codecs","tag-conteneur-codec-film","tag-difference-between-codecs-and-containers","tag-list-of-codecs-and-containers","tag-understanding-codecs-and-containers","tag-video-codecs-and-containers","tag-video-codecs-and-containers-explained","tag-video-codecs-containers","tag-video-formats-codecs-and-containers","tag-what-are-codecs-and-containers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Differences between Codec and container - mp4gain.com<\/title>\n<meta name=\"description\" content=\"The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it.\" \/>\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\/differences-between-codec-and-container\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Differences between Codec and container - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/\" \/>\n<meta property=\"og:site_name\" content=\"mp4gain.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mp4gain\" \/>\n<meta property=\"article:published_time\" content=\"2019-09-15T22:27:08+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164-300x193.jpg\" \/>\n<meta name=\"author\" content=\"R. 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Linkedin\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/ricardoariaszorrilla\/\"],\"url\":\"https:\/\/mp4gain.com\/mp4gain\/author\/mp4gain\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Differences between Codec and container - mp4gain.com","description":"The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it.","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\/differences-between-codec-and-container\/","og_locale":"en_US","og_type":"article","og_title":"Differences between Codec and container - mp4gain.com","og_description":"The codec term comes from the concatenation of the initials of two words: encoder and decoder. Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it.","og_url":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/","og_site_name":"mp4gain.com","article_publisher":"https:\/\/www.facebook.com\/mp4gain","article_published_time":"2019-09-15T22:27:08+00:00","og_image":[{"url":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164-300x193.jpg","type":"","width":"","height":""}],"author":"R. Arias","twitter_card":"summary_large_image","twitter_creator":"@mp4gain","twitter_site":"@mp4gain","twitter_misc":{"Written by":"R. Arias","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/#article","isPartOf":{"@id":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/"},"author":{"name":"R. 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Strictly speaking, a codec is a specification on how to code a type of information and then be able to decode it.","breadcrumb":{"@id":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/#primaryimage","url":"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164.jpg","contentUrl":"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/los-formatos-de-video-mas-livianos-para-transmitir-por-internet-01-e1479927827164.jpg","width":900,"height":578,"caption":"PCM"},{"@type":"BreadcrumbList","@id":"https:\/\/mp4gain.com\/mp4gain\/differences-between-codec-and-container\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mp4gain.com\/mp4gain\/"},{"@type":"ListItem","position":2,"name":"Differences between Codec and container"}]},{"@type":"WebSite","@id":"https:\/\/mp4gain.com\/mp4gain\/#website","url":"https:\/\/mp4gain.com\/mp4gain\/","name":"mp4gain.com","description":"Mp4 Gain Official Website","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mp4gain.com\/mp4gain\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/mp4gain.com\/mp4gain\/#\/schema\/person\/36ffddda9988e565bd4a9013324ce2cc","name":"R. 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. 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