{"id":1184,"date":"2010-05-24T09:02:48","date_gmt":"2010-05-24T14:02:48","guid":{"rendered":"http:\/\/adterrasperaspera.com\/blog\/?p=1184"},"modified":"2013-11-12T14:20:46","modified_gmt":"2013-11-12T19:20:46","slug":"approximate-youtube-bitrates","status":"publish","type":"post","link":"https:\/\/adterrasperaspera.com\/blog\/2010\/05\/24\/approximate-youtube-bitrates\/","title":{"rendered":"Approximate Youtube Bitrates"},"content":{"rendered":"

I’ve been wondering what bitrates Youtube produces on files, but they don’t upfront say.<\/p>\n

New videos are encoded in eight formats. However, due to bug in Youtube, some 24 fps videos (such as those from film sources) will have duplicate frames inserted to make them 30 fps, causing a very noticeable jitter approximately twice a second.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Format<\/th>\nVideo Codec<\/th>\nAudio Codec<\/th>\nContainer<\/th>\n<\/tr>\n
37<\/td>\nH.264 1920×1080 24\/30 fps<\/td>\nAAC 44.1khz Stereo<\/td>\nmp4<\/td>\n<\/tr>\n
22<\/td>\nH.264 1280×720 24\/30 fps<\/td>\nAAC 44.1khz Stereo<\/td>\nmp4<\/td>\n<\/tr>\n
35<\/td>\nH.264 854×480 24\/30 fps<\/td>\nAAC 44.1khz Stereo<\/td>\nflv<\/td>\n<\/tr>\n
34<\/td>\nH.264 640×480 24\/30 fps<\/td>\nAAC 44.1khz Stereo<\/td>\nflv<\/td>\n<\/tr>\n
18<\/td>\nH.264, 480×360 24\/30 fps<\/td>\nAAC 44.1khz Stereo<\/td>\nmp4<\/td>\n<\/tr>\n
5<\/td>\nSorenson Spark, 320×240 24\/30 fps<\/td>\nMP3 22khz Stereo<\/td>\nflv<\/td>\n<\/tr>\n
17<\/td>\nMPEG-4 ASP, 12 fps, black bordered to fit 176×144 frame<\/td>\nAAC 22khz Mono<\/td>\nmp4<\/td>\n<\/tr>\n
13<\/td>\nH.263+, 15 fps, stretched to full frame 176×144 ignoring source aspect ratio<\/td>\nAMR 8khz Mono<\/td>\n3gp<\/td>\n<\/tr>\n<\/table>\n

Note<\/b>: This does not include WebM videos yet as the support is still experimental, and Youtube is not yet encoding videos in 1080p, only 720p (format 45) and 480p (format 43).<\/p>\n

Now lets see how a couple high quality videos fair on Youtube.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Format<\/th>\nResolution<\/th>\nVideo and audio bitrate in kbit\/sec<\/th>\n<\/tr>\n
The Dark Knight Trailer 3<\/a> 1080p<\/a>, using the Apple<\/a> version. 2:30 long. H.264, 6ch 48khz AAC audio, 24 fps. Youtube encoded this as a 30 fps video.<\/td>\n<\/tr>\n
Original<\/td>\n1920×816<\/td>\n10518<\/td>\n260<\/td>\n<\/tr>\n
37<\/td>\n1920×816<\/td>\n3427<\/td>\n108.8<\/td>\n<\/tr>\n
22<\/td>\n1280×544<\/td>\n1998<\/td>\n108.8<\/td>\n<\/tr>\n
35<\/td>\nMissing on Youtube<\/a><\/p>\n
34<\/td>\n640×272<\/td>\n517<\/td>\n95<\/td>\n<\/tr>\n
18<\/td>\n480×204<\/td>\n500<\/td>\n108.5<\/td>\n<\/tr>\n
5<\/td>\n320×136<\/td>\n257<\/td>\n64<\/td>\n<\/tr>\n
17<\/td>\n176×144<\/td>\n55.3<\/td>\n27<\/td>\n<\/tr>\n
13<\/td>\n176×144<\/td>\n55.6<\/td>\n13<\/td>\n<\/tr>\n
Avatar Trailer<\/a> 1080p<\/a>, using the Apple<\/a> version. 3:29 long. H.264, stereo 44.1khz AAC audio, 24 fps.<\/td>\n<\/tr>\n
Original<\/td>\n1920×800<\/td>\n9726<\/td>\n99<\/td>\n<\/td>\n<\/tr>\n
37<\/td>\n1920×800<\/td>\n3502<\/td>\n126<\/td>\n<\/td>\n<\/tr>\n
22<\/td>\n1280×534<\/td>\n2003<\/td>\n126<\/td>\n<\/td>\n<\/tr>\n
35<\/td>\n854×356<\/td>\n806<\/td>\n103.84<\/td>\n<\/td>\n<\/tr>\n
34<\/td>\n640×266<\/td>\n554<\/td>\n103.81<\/td>\n<\/td>\n<\/tr>\n
18<\/td>\n480×200<\/td>\n486<\/td>\n103.82<\/td>\n<\/td>\n<\/tr>\n
5<\/td>\n400×166<\/td>\n255<\/td>\n59<\/td>\n<\/td>\n<\/tr>\n
17<\/td>\n176×144<\/td>\n55<\/td>\n28<\/td>\n<\/td>\n<\/tr>\n
13<\/td>\n176×144<\/td>\n54<\/td>\n13<\/td>\n<\/td>\n<\/tr>\n
Big Buck Bunny<\/a> 1080p<\/a>, using the Blender Foundation<\/a>‘s original version. 9:57 long. Theora, stereo 48khz Vorbis audio, 24 fps.<\/td>\n<\/tr>\n
Original<\/td>\n1920×1080<\/td>\n11902<\/td>\n175<\/td>\n<\/tr>\n
37<\/td>\n1920×1080<\/td>\n3531<\/td>\n125<\/td>\n<\/tr>\n
22<\/td>\n1280×720<\/td>\n2020<\/td>\n125<\/td>\n<\/tr>\n
35<\/td>\n854×480<\/td>\n990<\/td>\n107.9<\/td>\n<\/tr>\n
34<\/td>\n640×360<\/td>\n494<\/td>\n108.02<\/td>\n<\/tr>\n
18<\/td>\n480×270<\/td>\n435<\/td>\n108.03<\/td>\n<\/tr>\n
5<\/td>\n400×226<\/td>\n250<\/td>\n59<\/td>\n<\/tr>\n
17<\/td>\n176×144<\/td>\n55<\/td>\n30<\/td>\n<\/tr>\n
13<\/td>\n176×144<\/td>\n49<\/td>\n12<\/td>\n<\/tr>\n<\/table>\n

With these 3 popular HD videos, its easy to tell what sort of bitrate Youtube tries to hit.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Format<\/th>\nApproximate bitrate target (video and audio)<\/th>\n<\/tr>\n
37<\/td>\n3.75mbit\/sec<\/td>\n<\/tr>\n
22<\/td>\n2.25mbit\/sec<\/td>\n<\/tr>\n
35<\/td>\n1.25mbit\/sec<\/td>\n<\/tr>\n
34<\/td>\n768kbit\/sec<\/td>\n<\/tr>\n
18<\/td>\n768kbit\/sec<\/td>\n<\/tr>\n
5<\/td>\n384kbit\/sec<\/td>\n<\/tr>\n
17<\/td>\n100kbit\/sec<\/td>\n<\/tr>\n
13<\/td>\n75kbit\/sec<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

I’ve been wondering what bitrates Youtube produces on files, but they don’t upfront say. New videos are encoded in eight formats. However, due to bug in Youtube, some 24 fps videos (such as those from film sources) will have duplicate frames inserted to make them 30 fps, causing a very noticeable jitter approximately twice a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[402],"tags":[],"_links":{"self":[{"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/posts\/1184"}],"collection":[{"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/comments?post=1184"}],"version-history":[{"count":120,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/posts\/1184\/revisions"}],"predecessor-version":[{"id":1307,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/posts\/1184\/revisions\/1307"}],"wp:attachment":[{"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/media?parent=1184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/categories?post=1184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/adterrasperaspera.com\/blog\/wp-json\/wp\/v2\/tags?post=1184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}