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4k Video Downloader 4.4.11 License Key. 4k video downloader Key is a software program that authorizes you to download audio, video, and subtitles from YouTube or Daily motion at high excellent and as rapid as your connection and laptop lets in.

Contents • • • • • • • • • • • • • • • • • • • • • • • 4K standards and terminology [ ] The term '4K' is generic and refers to any resolution with a horizontal pixel count of approximately 4,000. ( p2) Several different 4K resolutions have been standardized by various organizations. DCI Digital Cinema System Specification [ ] In 2005, (DCI), a prominent standards organization in the cinema industry, published the Digital Cinema System Specification. This specification establishes standardized 2K and 4K container formats for digital cinema production, with resolutions of 2048 × 1080 and 4096 × 2160 respectively. ( §4.3.1) The resolution of the video content inside follows the SMPTE 428-1 standard, ( §3.2.1) which establishes the following resolutions for a 4K distribution: ( p6) • 4096 × 2160 (full frame, 256∶135 or ≈1.90∶1 aspect ratio) • 3996 × 2160 (flat crop, 1.85∶1 aspect ratio) • 4096 × 1716 (CinemaScope crop, ≈2.39∶1 aspect ratio) 2K distributions can have a frame rate of either 24 or 48, while 4K distributions must have a frame rate of 24 FPS. ( §3.1.4.2) Some articles claim that the terms '2K' and '4K' were coined by DCI and refer exclusively to the 2K and 4K formats defined in the DCI standard. However, usage of these terms in the cinema industry predates the publication of the DCI standard, and they are generally understood as casual terms for any resolution approximately 2000 or 4000 pixels in width, rather than names for specific resolutions.

( p2) ( p109) SMPTE UHDTV Standard [ ] In 2007, the published SMPTE ST 2036-1, which defines parameters for two UHDTV systems called UHDTV1 and UHDTV2. Samsung UN105S9 105 inch (266.7 cm) ultra-high-definition 4K television The first commercially available 4K camera for cinematographic purposes was the, released in 2003. Craagle serials. 4K technology was developed by several research groups in universities around the world, such as,,, and others that realized several demonstrations in venues such as IGrid in 2004.

Began supporting 4K for video uploads in 2010 as a result of leading manufacturers producing 4K cameras. Users could view 4K video by selecting 'Original' from the quality settings until December 2013, when the 2160p option appeared in the quality menu. In November 2013, YouTube began to use the video compression standard, saying that it was more suitable for 4K than (HEVC)., which owns YouTube, developed VP9. Theaters began projecting movies at 4K resolution in 2011.

Sony was offering 4K projectors as early as 2004. The first 4K projector was released by in 2012. Sony is one of the leading studios promoting UHDTV content, as of 2013 offering a little over 70 movie and television titles via digital download to a specialized player that stores and decodes the video. The large files (≈40 GB), distributed through consumer broadband connections, raise concerns about data caps. In 2014, began streaming,, and 'some nature documentaries' at 4K to compatible televisions with an HEVC decoder.

Most 4K televisions sold in 2013 did not natively support HEVC, with most major manufacturers announcing support in 2014. Began shooting their full-length original series and new pilots with 4K resolution in 2014.

They are now currently available though. In March 2016 the first players and discs for —a physical optical disc format supporting 4K resolution and HDR at 60 frames per second—were released. In 2016, Sony and Microsoft released the and, respectively, both of which are video game consoles that support 4K streaming, although in most cases the resolution is upscaled to 4K; the Xbox One S also features an Ultra HD Blu-ray disc drive.

On November 7, 2017 Microsoft released the, which is capable of native 4K streaming and gaming. Home video projection [ ].

This section may need to be rewritten entirely to comply with Wikipedia's. The may contain suggestions. ( August 2017) Though experiencing rapid price drops beginning in 2013 for viewing devices, the home cinema market saw little expansion, with only a few manufacturers (only Sony as of 2015 ) offering limited 4K-capable lineups, with native 4K projectors commanding five-figure price tags well into 2015 before finally breaking the US$10,000 barrier. Critics state that at normal direct-view panel size and viewing distances, the extra pixels of 4K are redundant at the ability of. Projection home cinemas, on the other hand, employ much larger screen sizes without necessarily increasing viewing distance to scale. JVC has used a technique known as 'e-shift' to extrapolate extra pixels from 1080p sources to display 4K on screens through or from native 4K sources at a much lower price than native 4K projectors.