1.0mp4gain.comhttps://mp4gain.com/mp4gainR. Ariashttps://mp4gain.com/mp4gain/author/mp4gain/rich600338<blockquote class="wp-embedded-content" data-secret="olvjb7sxfa"><a href="https://mp4gain.com/mp4gain/what-is-mp4/">What is MP4?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://mp4gain.com/mp4gain/what-is-mp4/embed/#?secret=olvjb7sxfa" width="600" height="338" title="“What is MP4?” — mp4gain.com" data-secret="olvjb7sxfa" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://mp4gain.com/mp4gain/wp-includes/js/wp-embed.min.js </script> What is MP4? How does the Mp4 format work? First, the package format is presented. Multimedia encapsulation format (also called container format) refers to placing video data, audio data, etc. in a file according to certain rules. Common MKV, AVI and MP4 presented in this article are all package formats. MP4 is one of the … Continue reading ""https://cdn-icons-png.flaticon.com/512/29/29530.png