Editing VC-1 (section)

{{Short description|Video coding format developed by Microsoft}}
{{Other uses|VC1 (disambiguation){{!}}VC1}}
{{distinguish|AVC1|AV1}}
{{Infobox file format
| name = VC-1
| icon = 
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| developer = [[Society of Motion Picture and Television Engineers|SMPTE]], [[Microsoft]], [[Panasonic]], [[LG Electronics|LG]], [[Samsung Electronics|Samsung]], [[#Patent holders|etc.]]
| released = {{start date and age|2006|02|24|df=y}}
| latest_release_version = SMPTE ST 421:2013
| latest_release_date = {{start date and age|2013|10|08|df=y}}
| type = [[Video coding format]]
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| extended_from = [[Windows Media Video|WMV 9]]
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| standards = SMPTE ST 421
| open = Yes
| free = No<ref>{{cite tech report |publisher=Library of Congress |location=Washington, D.C. |series=Sustainability of Digital Formats |type=Full draft |title=Windows Media 9 Video Codec; SMPTE VC-1 |date=26 May 2010 |url=https://www.loc.gov/preservation/digital/formats/fdd/fdd000081.shtml |access-date=13 December 2021}}</ref>
| url = {{#statements:official website}}
}}
'''SMPTE 421''',<ref>{{Cite journal |date=October 2013 |title=ST 421:2013 - SMPTE Standard - VC-1 Compressed Video Bitstream Format and Decoding Process |url=https://ieeexplore.ieee.org/document/7290900 |archive-url=https://web.archive.org/web/20180606164955/https://ieeexplore.ieee.org/document/7290900/ |url-status=dead |archive-date=June 6, 2018 |journal=St 421:2013 |pages=i–493 |doi=10.5594/SMPTE.ST421.2013|isbn=978-1-61482-770-2 |url-access=subscription }}</ref> informally known as '''VC-1''', is a [[video coding format]]. Most of it was initially developed as [[Microsoft]]'s proprietary video format [[Windows Media Video|Windows Media Video 9]] in 2003. With some enhancements including the development of a new Advanced Profile, it was officially approved as an [[Society of Motion Picture and Television Engineers|SMPTE]] standard on April 3, 2006. It was primarily marketed as a lower-complexity competitor to the [[H.264/MPEG-4 AVC]] standard. After its development, several companies other than Microsoft asserted that they held [[patent]]s that applied to the technology, including [[Panasonic]], [[LG Electronics]] and [[Samsung Electronics]].

VC-1 is supported in the now-deprecated [[Microsoft Silverlight]], the briefly-offered [[HD DVD]] disc format, and the [[Blu-ray Disc]] format.