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Since 2009, viewers have had the ability to watch 3D videos. [47] In 2015, YouTube began natively supporting 360-degree video. Since April 2016, it allowed live streaming 360° video, and both normal and 360° video at up to 1440p, and since November 2016 both at up to 4K (2160p) resolution.
DCI 2K is a standardized format established by the Digital Cinema Initiatives consortium in 2005 for 2K video projection. This format has a resolution of 2048 × 1080 (2.2 megapixels) with an aspect ratio of 256∶135 (1.8 962 ) or roughly "17∶9". [ 11 ]
In the movie projection industry, Digital Cinema Initiatives is the dominant standard for 2K output and defines a 2K format with a resolution of 2048 × 1080. [ 2 ] [ 3 ] For television and consumer media, the dominant resolution in the same class is 1920 × 1080 , but in the cinema industry this is generally referred to as "HD" and ...
1440p video mastered from 4:3 ratio content can be displayed with 1920×1440 or higher resolution such as QXGA or 2304×1440 with scaling, windowboxing, or pillarboxing. Widescreen 16:9 aspect ratio 1440p requires 2560×1440 ( WQHD ) resolution, possible with WQXGA , 2560×1920, or higher resolution with letterboxing , scaling, or windowboxing.
Many of these resolutions are also used for video files that are not broadcast. These may also use other aspect ratios by cropping otherwise black bars at the top and bottom which result from cinema aspect ratios greater than 16∶9, such as 1.85 or 2.35 through 2.40 (dubbed "Cinemascope", "21∶9" etc.), while the standard horizontal ...
The resolution 192×144 is used when 144p is selected on a fullscreen YouTube video. [citation needed] YouTube 144p 144p 256×144 36,864 16:9 One tenth of 1440p. The lowest resolution on YouTube since 2013. [10] QnHD 180p 320×180 57,600 16:9 222p 222p 400×222 88,800 16:9 Used in low-resolution Facebook widescreen videos. [citation needed]
The quality the codec can achieve is heavily based on the compression format the codec uses. A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.
Although not an official name, this term is now used to refer to 1152×864, which is the largest 4:3 array yielding less than a binary megapixel (2^20, 1048576 pixels, 1048 decimal kilopixels), thus allowing the greatest "normal" resolution at common colour depths with a standard amount of video memory (128 kB, 512 kB, 1 MB, 2 MB, etc.).