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Avid DNxHD
Avid DNxHD ("Digital Nonlinear Extensible High Definition") is a lossy high-definition video post-production codec developed by Avid for multi-generation compositing with reduced storage and bandwidth requirements. It is an implementation of SMPTE VC-3 standard. Overview DNxHD is a video codec intended to be usable as both an intermediate format suitable for use while editing and as a presentation format. DNxHD data is typically stored in an MXF container, although it can also be stored in a QuickTime container. On February 13, 2008, Avid reported that DNxHD was approved as compliant with the SMPTE VC-3 standard. DNxHD is intended to be an open standard, but as of March 2008, has remained effectively a proprietary Avid format. The source code for the Avid DNxHD codec is freely available from Avid for internal evaluation and review, although commercial use requires Avid licensing approval. It has been commercially licensed to a number of companies including Ikegami, FilmLight, Har ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lossy Compression
In information technology, lossy compression or irreversible compression is the class of data compression methods that uses inexact approximations and partial data discarding to represent the content. These techniques are used to reduce data size for storing, handling, and transmitting content. The different versions of the photo of the cat on this page show how higher degrees of approximation create coarser images as more details are removed. This is opposed to lossless data compression (reversible data compression) which does not degrade the data. The amount of data reduction possible using lossy compression is much higher than using lossless techniques. Well-designed lossy compression technology often reduces file sizes significantly before degradation is noticed by the end-user. Even when noticeable by the user, further data reduction may be desirable (e.g., for real-time communication or to reduce transmission times or storage needs). The most widely used lossy compression al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Media Composer
Avid Media Composer is a film and video editing software application or non-linear editing system (NLE) developed by Avid Technology. Initially released in 1989 on Macintosh II as an offline editing system, the application has since evolved to allow for both offline and online editing, including uncompressed standard definition (SD), high definition (HD), 2K and 4K editing and finishing. Since the 1990s, Media Composer has been the dominant non-linear editing system in the film and television industry, first on Macintosh and later on Windows. Avid NewsCutter, aimed at newsrooms, Avid Symphony, aimed at finishing, were all Avid products that were derived from Media Composer and share similar interfacing, as were Avid Xpress Pro (discontinued in 2008) and its predecessor Avid Xpress DV, which were aimed at the lower end of the market. There are 4 versions of Avid Media Composer; Media Composer , First (a freeware version), Media Composer, Media Composer , Ultimate, and Media C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-linear Video Editor
Non-linear editing is a form of offline editing for audio, video, and image editing. In offline editing, the original content is not modified in the course of editing. In non-linear editing, edits are specified and modified by specialized software. A pointer-based playlist, effectively an edit decision list (EDL), for video and audio, or a directed acyclic graph for still images, is used to keep track of edits. Each time the edited audio, video, or image is rendered, played back, or accessed, it is reconstructed from the original source and the specified editing steps. Although this process is more computationally intensive than directly modifying the original content, changing the edits themselves can be almost instantaneous, and it prevents further generation loss as the audio, video, or image is edited. A non-linear editing system (NLE) is a video editing (NLVE) program or application, or an audio editing (NLAE) digital audio workstation (DAW) system. These perform non-dest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux
Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name "GNU/Linux" to emphasize the importance of GNU software, causing some controversy. Popular Linux distributions include Debian, Fedora Linux, and Ubuntu, the latter of which itself consists of many different distributions and modifications, including Lubuntu and Xubuntu. Commercial distributions include Red Hat Enterprise Linux and SUSE Linux Enterprise. Desktop Linux distributions include a windowing system such as X11 or Wayland, and a desktop environment such as GNOME or KDE Plasma. Distributions intended for ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FFmpeg
FFmpeg is a free and open-source software project consisting of a suite of libraries and programs for handling video, audio, and other multimedia files and streams. At its core is the command-line ffmpeg tool itself, designed for processing of video and audio files. It is widely used for format transcoding, basic editing (trimming and concatenation), video scaling, video post-production effects and standards compliance (SMPTE, ITU). FFmpeg also includes other tools: ffplay, a simple media player and ffprobe, a command-line tool to display media information. Among included libraries are libavcodec, an audio/video codec library used by many commercial and free software products, libavformat (Lavf), an audio/video container mux and demux library, and libavfilter, a library for enhancing and editing filters through a Gstreamer-like filtergraph. FFmpeg is part of the workflow of many other software projects, and its libraries are a core part of software media players such as VLC, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-source Software
Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software. Open-source software development can bring in diverse perspectives beyond those of a single company. A 2008 report by the Standish Group stated that adoption of open-source software models has resulted in savings of about $60 billion per year for consumers. Open source code can be used for studying and allows capable end users to adapt software to their personal needs in a similar way user scripts an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mac OS X
macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of desktop and laptop computers it is the Usage share of operating systems#Desktop and laptop computers, second most widely used desktop OS, after Microsoft Windows and ahead of ChromeOS. macOS succeeded the classic Mac OS, a Mac operating system with nine releases from 1984 to 1999. During this time, Apple cofounder Steve Jobs had left Apple and started another company, NeXT Computer, NeXT, developing the NeXTSTEP platform that would later be acquired by Apple to form the basis of macOS. The first desktop version, Mac OS X 10.0, was released in March 2001, with its first update, 10.1, arriving later that year. All releases from Mac OS X Leopard, Mac OS X 10.5 Leopard and after are UNIX 03 certified, with an exception for OS X Lion, OS X 10. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows XP
Windows XP is a major release of Microsoft's Windows NT operating system. It was released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct upgrade to its predecessors, Windows 2000 for high-end and business users and Windows Me for home users, available for any devices running Windows NT 4.0, Windows 98, Windows 2000 and Windows Me that meet the new Windows XP system requirements. Development of Windows XP began in the late 1990s under the codename "Neptune", built on the Windows NT kernel explicitly intended for mainstream consumer use. An updated version of Windows 2000 was also initially planned for the business market. However, in January 2000, both projects were scrapped in favor of a single OS codenamed "Whistler", which would serve as a single platform for both consumer and business markets. As a result, Windows XP is the first consumer edition of Windows not based on the Windows 95 kernel and MS-DOS. Windows XP removed suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackmagic Design
Blackmagic Design Pty Ltd. is an Australian digital cinema company and hardware manufacturer based in Port Melbourne, Victoria, Australia. It designs and manufactures broadcast and cinema hardware, most notably high-end digital-movie cameras, and also develops video editing software, such as the DaVinci Resolve and Blackmagic Fusion applications. History The company was founded in 2001 by Grant Petty and produced its first product, a capture card for macOS called DeckLink that was the first to offer uncompressed 10-bit video, in 2002. The company later released newer versions of the product and added color-correction capabilities, support for Windows, and full support for Adobe Premiere Pro and Microsoft DirectShow. *In 2005 the company released several products, including the Multibridge family of PCIe bi-directional converters and the FrameLink family of DPX-based software. *In 2006 the company released Blackmagic On-Air television production software. *In 2009 the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arri Alexa
The Arri Alexa (stylised as ΛLEXΛ) is a digital motion picture camera system developed by Arri. First introduced in April 2010, the camera was Arri's first major transition into digital cinematography after previous efforts such as the Arriflex D-20 and D-21. Alexa cameras are designed for use in feature films, television shows, and commercials. Alexa uses the ALEV series of image sensors manufactured by ON Semiconductor. Overview The Alexa camera system introduced their Log-C imaging science as a digital negative to make digital cinema images process like scanned film images. The camera has several methods of recording, including SxS cards, CFast 2.0 cards and SXR Capture Drives at resolutions up to 3424 × 2202 pixels in either Rec. 709 HD Video color space or Log-C to ProRes or ARRIRAW codecs. The Alexa camera offers additional optional software licenses that unlock different capabilities of the Alexa Camera including High Speed 120fps recording, DNxHD codec and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Editcam
Editcam is a professional digital camera system manufactured by Ikegami and first introduced in 1995, available both as professional camcorders and modular dock recorders. It is the first ever tapeless field acquisition device and has evolved into a range of SD and HD cameras. As a portable camera system, it can record digital video data direct to a hard disk drive (HDD). The editcam's most distinguishing feature is the recording medium: The ''FieldPak'', which is a cartridge that contains an IDE hard disk with up to 120 GB of storage, or its compatible companion, the ''RAMPak'', a flash memory module with up to 16 GB. A 120 GB capacity FieldPak translates to some 9 hours of DV25 video. Both, unlike tape-based formats, allow random access to the video data, and both standalone Video cassette recorder (VCR) replacement players and computer adaptor racks are available for the Paks. This made the Editcam a pioneer in the field of non-linear acquisition, but the earliest incarnatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xpress Pro
Avid Xpress Pro was a non-linear video editing software aimed at professionals in the TV and movie industry. It was available for Microsoft Windows PCs and Apple Macintosh computers. Xpress Pro included many of the high-end editing features offered by other Avid editing systems, and was closely based on Avid's Media Composer systems. In conjunction with the Avid Mojo hardware, it provided real-time uncompressed video editing at a professional level. Xpress Pro was capable of sharing media files with Avid's advanced Media Composer editing systems making it a capable logging or offline editing system for larger projects. While Xpress Pro was originally aimed at DV and uncompressed standard definition editors, the upgrade to Xpress Pro HD with version 5.0 of the software added support for high-definition editing with the 8-bit version of Avid's DNxHD codec or Panasonic's DVCPRO HD codec, and version 5.2 added support for HDV editing. Unlike some other editing packages, Xpress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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