{"id":2788,"date":"2012-02-27T22:41:31","date_gmt":"2012-02-28T06:41:31","guid":{"rendered":"https:\/\/www.leawo.com\/knowledge\/?p=2788"},"modified":"2013-07-25T00:51:45","modified_gmt":"2013-07-25T08:51:45","slug":"mpeg-4","status":"publish","type":"post","link":"https:\/\/www.leawo.com\/knowledge\/mpeg-4.html","title":{"rendered":"What is MPEG-4 Format","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

About MPEG-4 Format<\/strong><\/p>\n

MPEG-4 is a method of defining compression of audio and visual digital data, it is one of the latest compression method standardized by MPEG group, designed especially for low-bandwidth video\/audio encoding purposes. DivX<\/a> and XviD<\/a> are fully standard-compliant MPEG-4 encoders nowadays. MPEG-4 is commonly used to store media types defined by the ISO\/IEC Moving Picture Experts Group, though it can store other media types as well. The files of this format usually have extension .mp4.<\/p>\n

Unlike MPEG-1 and MPEG-2, the MPEG-4’s predecessors, MPEG-4 itself isn’t just one unified encoding mechanism, but rather a group name for several flavors of video and audio encoding methods that share certain same characteristics. These “flavors” are often referred either as “profiles” or “layers” in MPEG-4 compression scheme and each new profile should be backwards compliant to the older, “lower” versions of MPEG-4 in terms of playback capability. MPEG-4 group has standardized several new layers – most important ones are h263+ (which is used widely in mobile phones, named as 3GP) and h.264 (often also called as AVC).<\/p>\n

MPEG-4 builds on the proven success of three fields: <\/strong><\/strong><\/p>\n

\u25cf Digital television<\/p>\n

\u25cf Interactive graphics applications (synthetic content)<\/p>\n

\u25cf Interactive multimedia (World Wide Web, distribution of and access to content)<\/p>\n

Data recommended to be embedded in MPEG-4: <\/strong><\/p>\n

\u25cf Video: MPEG-4, MPEG-2 and MPEG-1<\/p>\n

\u25cf Audio: MPEG-4 AAC<\/a>, MP3<\/a>, MP2, MPEG-1 Part 3, MPEG-2 Part 3, CELP (speech),TwinVQ (very low bitrates), SAOL (midi)<\/p>\n

\u25cf Pictures: JPEG, PNG<\/p>\n

\u25cf Subtitles: MPEG-4 Timed Text, and\/or xmt\/bt text format (means that subtitles have to be translated into xmt\/bt)<\/p>\n

\u25cf Systems: Allows animation, interactivity and DVD-like menus<\/p>\n

 <\/p>\n

File extensions used on files that contain data in the *.mp4 format: <\/strong><\/p>\n

\u25cf .mp4: official extension, for audio, video and advanced content (see above) files<\/p>\n

\u25cf .m4a: for audio-only files; can safely be renamed to *.mp4, though opinions differ on the wisdom of this.<\/p>\n

\u25cf .m4p: FairPlay protected files<\/p>\n

\u25cf .mp4v, .m4v: video-only (sometimes also used for raw mpeg-4 video streams not in the *.mp4 container format)<\/p>\n

\u25cf .3gp, .3g2: used by 3G mobile phones, may also store content not specified directly in the *.mp4 specification (H.263, AMR, TX3G)<\/p>\n

Related Software<\/strong><\/p>\n

Leawo Video Converter<\/a> (MPEG-4 Converter)<\/strong>: an easy video and audio solution for any format conversions, with fast speed and excellent output guaranteed. Equipped with 3D conversion function, you can get 3D MPEG-4 video as output. This MPEG-4 Converter not only converts common videos to video with MPEG-4 encoder, but also converts MPEG-4 video to other video formats.<\/p>\n

Leawo DVD Ripper<\/a> (DVD to MPEG-4 Ripper)<\/strong>: a useful DVD ripping program for users to rip DVD to video in various formats. So with it you can enjoy great convenience to convert DVD to MPEG-4 for appreciation. This DVD to MPEG-4 Ripper enables you to convert DVD to MPEG-4 with fast speed and excellent video quality. 3D MPEG-4 video as output is also supportable.<\/p>\n

Related Source<\/strong>
\n MP4<\/a>, AVI<\/a> , WMV<\/a>, MP3<\/a>, M4V<\/a>, M4A<\/a>,\u00a0AAC<\/a>, MOV<\/a>, MKV<\/a>, VLC Player<\/a>, MPlayer<\/a><\/p>\n

External Links<\/strong>
\nhttp:\/\/en.wikipedia.org\/wiki\/Mpeg4<\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

About MPEG-4 Format MPEG-4 is a method of defining compression of audio and visual digital data, it is one of the latest compression method standardized by MPEG group, designed especially for low-bandwidth video\/audio encoding purposes. DivX and XviD are fully …<\/p>\n

Read more »<\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-2788","post","type-post","status-publish","format-standard","hentry","category-related-technology"],"aioseo_notices":[],"views":2043,"excerpt_185":"About MPEG-4 Format MPEG-4 is a method of defining compression of audio and visual digital data, it is one of the latest compression method standardized by MPEG group, designed especially...","formatted_date":"27\/02\/2012","gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/posts\/2788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/comments?post=2788"}],"version-history":[{"count":0,"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/posts\/2788\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/media?parent=2788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/categories?post=2788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.leawo.com\/knowledge\/wp-json\/wp\/v2\/tags?post=2788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}