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youtube-dl is a free and open source software tool for downloading video and audio from YouTube [2] and over 1,000 other video hosting websites. [3] It is released under the Unlicense software license. [4] As of September 2021, youtube-dl is one of the most starred projects on GitHub, with over 100,000 stars. [5]
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Online video platforms allow users to upload, share videos or live stream their own videos to the Internet. These can either be for the general public to watch, or particular users on a shared network. The most popular video hosting website is YouTube, 2 billion active until October 2020 and the most extensive catalog of online videos. [1]
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WebM is an open media file format designed for the web. WebM files consist of video streams compressed with the VP8 video codec and audio streams compressed with the Vorbis audio codec. The WebM file structure is based on the Matroska media container. ^ WebM (Partial draft). Sustainability of Digital Formats.
High Efficiency Video Coding ( HEVC ), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, H.264, or MPEG-4 Part 10). In comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality ...
High-definition video ( HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical scan lines (North America) or 576 vertical lines (Europe) is considered high-definition. [citation needed] 480 scan ...
VP9 is the last official iteration of the TrueMotion series of video formats that Google bought in 2010 for $134 million together with the company On2 Technologiesthat created it. The development of VP9 started in the second half of 2011 under the development names of Next Gen Open Video(NGOV) and VP-Next. [8][9][10]The design goals for VP9 ...