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Libavcodec
libavcodec is a free and open-source library of codecs for encoding and decoding video and audio data. libavcodec is an integral part of many open-source multimedia applications and frameworks. The popular MPV, xine and VLC media players use it as their main, built-in decoding engine that enables playback of many audio and video formats on all supported platforms. It is also used by the ffdshow tryouts decoder as its primary decoding library. libavcodec is also used in video editing and transcoding applications like Avidemux, MEncoder or Kdenlive for both decoding and encoding. libavcodec contains decoder and sometimes encoder implementations of several proprietary formats, including ones for which no public specification has been released. As such, a significant reverse engineering effort is part of libavcodec development. Having such codecs available within the standard libavcodec framework gives a number of benefits over using the original codecs, most notably increased ... [...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 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 V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avidemux
Avidemux is a free and open-source software application for non-linear video editing and transcoding multimedia files. The developers intend it as "a simple tool for simple video processing tasks" and to allow users "to do elementary things in a very straightforward way". It is written in C++ and uses Qt for its graphical user interface, and FFmpeg for its multimedia functions. Starting with version 2.4, Avidemux also offers a command-line interface, and since version 2.6, the original GTK port has not been maintained and is now discontinued. Avidemux is developed for Linux, macOS, and Windows. Unofficial builds are also available for FreeBSD, NetBSD, and OpenBSD. Features Avidemux is capable of non-linear video editing, applying visual effects (called "Filters" by Avidemux) to video, and transcoding video into various formats. Some of the filters were ported from MPlayer and Avisynth. Avidemux can also insert audio streams into a video file (an action known as multiple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinepak
Cinepak is a lossy video codec developed by Peter Barrett at SuperMac Technologies, and released in 1991 with the Video Spigot, and then in 1992 as part of Apple Computer's QuickTime video suite. One of the first video compression tools to achieve full motion video on CD-ROM, it was designed to encode 320×240 resolution video at 1× (150 kbyte/s) CD-ROM transfer rates. The original name of this codec was Compact Video, which is why its FourCC identifier is CVID. The codec was ported to Microsoft Windows in 1993. It was also used on fourth- and fifth-generation game consoles, such as the Atari Jaguar CD, Sega CD, Sega Saturn, and 3DO. libavcodec includes a Cinepak decoder and an encoder, both licensed under the terms of the LGPL. History It was the primary video codec of early versions of QuickTime and Microsoft Video for Windows, but was later superseded by Sorenson Video, Intel Indeo, and most recently MPEG-4 Part 2 and H.264/MPEG-4 AVC. However, movies compressed with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CineForm
CineForm Intermediate is an open source (from October 2017) video codec developed for CineForm Inc by David Taylor, David Newman and Brian Schunck. On March 30, 2011, the company was acquired by GoPro which in particular wanted to use the 3D film capabilities of the CineForm 444 Codec for its GoPro#Multiple-lens and synchronized cameras, 3D HERO System. The press release in the GoPro acquisition noted that CineForm's codec had been used in movies including ''Slumdog Millionaire'' and ''Need for Speed (film), Need For Speed''. History The CineForm Intermediate Codec was originally designed in 2002 for compressed digital intermediate workflows for film or television applications using HD or higher resolution media. The CineForm media is most commonly wrapped within AVI or MOV files types, using the 'CFHD' FourCC, FourCC code for all compressed media types. Implementations support image formatting for 10-bit 4:2:2 YUV, 12-bit 4:4:4 RGB and RGBA, and 12-bit CFA Bayer filter RAW compre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CamStudio
CamStudio is an open-source screencasting program for Microsoft Windows released as free software. The software renders videos in an Audio Video Interleave, AVI format. It can also convert these AVIs into Flash Video format, embedded in SWF files. CamStudio is written in C++, but CamStudio 3 will be developed in C Sharp (programming language), C#. The program has distributed malware and harmful viruses via the installer. History The original CamStudio was released as an Open-source software, open source product by RenderSoft software in October 2001. The source code license was converted to the GNU General Public License in December 2002 with release 1.8. The Source code of versions 1.0, 1.4 and 2.0 are still available at SourceForge. In 2003, the company was acquired by eHelp Corporation who owned a competing product called RoboDemo (now called Adobe Captivate). eHelp Corporation released an updated version as CamStudio 2.1 under a Proprietary software, proprietary softwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bink Video
Bink Video is a proprietary file format (extensions .bik and .bk2) for video developed by Epic Games Tools (formerly RAD Game Tools), a part of Epic Games. Overview The format includes its own proprietary video and audio compression algorithms (video and audio codecs) supporting resolutions from 320×240 up to high definition video. It is bundled as part of the Epic Video Tools along with Epic Games Tools' previous video codec, Smacker video. It is a hybrid block-transform and wavelet codec using 16 different encoding techniques. The codec places emphasis on lower decoding requirements over other video codecs with specific optimizations for the different computer game consoles it supports. It has been primarily used for full-motion video sequences in video games, and has been used in games for Windows, Mac OS and all sixth-generation game consoles (Dreamcast, GameCube, PlayStation 2 and Xbox) and all major seventh-generation gaming platforms (Nintendo DS, PlayStation 3, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Video Standard
Audio Video Coding Standard (AVS) refers to the digital audio and digital video series compression standard formulated by the Audio and Video coding standard workgroup of China. Work began in 2002, and three generations of standards were published. The first generation AVS standard includes "Information Technology, Advanced Audio Video Coding, Part 2: Video" (AVS1) and "Information Technology, Advanced Audio Video Coding Part 16: Radio Television Video" (AVS+.) For the second generation, referred to as AVS2, the primary application target was ultra-high-definition television video, supporting the efficient compression of ultra-high-resolution ( 4K and above), high-dynamic-range videos, and was published as IEEE international standard IEEE 1857.4. An industry alliance was established to develop and promote AVS standards. A patent pool charges a small royalty for terminal products (like TVs,) excluding content providers and operators. The AVS3 codec was added to DVB's media deliv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asus
ASUSTeK Computer Inc. (, , , ; stylized as ASUSTeK or ASUS) is a Taiwanese Multinational corporation, multinational computer, phone hardware and electronics manufacturer headquartered in Beitou District, Taipei, Taiwan. Its products include desktop computers, laptops, netbooks, mobile phones, networking equipment, monitors, wireless router, Wi-Fi routers, projectors, motherboards, graphics cards, optical storage, multimedia products, peripherals, wearables, server (computing), servers, workstations and tablet PCs. The company is also an original equipment manufacturer (OEM). Asus is the Market share of personal computer vendors, world's fifth-largest personal computer vendor by unit sales. Asus has a primary listing on the Taiwan Stock Exchange under the ticker code ''2357'' and formerly had a secondary listing on the London Stock Exchange under the ticker code ''ASKD''. Name The company is usually referred to as ''ASUS'' or ''Huáshuò'' in Chinese language, Chinese ( zh , t = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animated GIF
The Graphics Interchange Format (GIF; or , ) is a Raster graphics, bitmap Image file formats, image format that was developed by a team at the online services provider CompuServe led by American computer scientist Steve Wilhite and released on June 15, 1987. The format can contain up to 8-bit color, 8 bits per pixel, allowing a single image to reference its own Palette (computing), palette of up to 256 different colors chosen from the 24-bit color, 24-bit RGB color model, RGB color space. It can also represent multiple images in a file, which can be used for animations, and allows a separate palette of up to 256 colors for each frame. These palette limitations make GIF less suitable for reproducing color photographs and other Image gradient, images with color gradients but well-suited for simpler images such as graphics or logos with solid areas of color. GIF images are compressed using the Lempel–Ziv–Welch (LZW) lossless data compression technique to reduce the file si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Color Space
A color space is a specific organization of colors. In combination with color profiling supported by various physical devices, it supports reproducible representations of colorwhether such representation entails an analog or a digital representation. A color space may be arbitrary, i.e. with physically realized colors assigned to a set of physical color swatches with corresponding assigned color names (including discrete numbers infor examplethe Pantone collection), or structured with mathematical rigor (as with the NCS System, Adobe RGB and sRGB). A "color space" is a useful conceptual tool for understanding the color capabilities of a particular device or digital file. When trying to reproduce color on another device, color spaces can show whether shadow/highlight detail and color saturation can be retained, and by how much either will be compromised. A "color model" is an abstract mathematical model describing the way colors can be represented as tuples of numbers (e. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discrete Cosine Transform
A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequency, frequencies. The DCT, first proposed by Nasir Ahmed (engineer), Nasir Ahmed in 1972, is a widely used transformation technique in signal processing and data compression. It is used in most digital media, including digital images (such as JPEG and HEIF), digital video (such as MPEG and ), digital audio (such as Dolby Digital, MP3 and Advanced Audio Coding, AAC), digital television (such as SDTV, HDTV and Video on demand, VOD), digital radio (such as AAC+ and DAB+), and speech coding (such as AAC-LD, Siren (codec), Siren and Opus (audio format), Opus). DCTs are also important to numerous other applications in science and engineering, such as digital signal processing, telecommunication devices, reducing network bandwidth usage, and spectral methods for the numerical solution of partial differential equations. A DCT is a List of Fourier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Portability
Software consists of computer programs that instruct the execution of a computer. Software also includes design documents and specifications. The history of software is closely tied to the development of digital computers in the mid-20th century. Early programs were written in the machine language specific to the hardware. The introduction of high-level programming languages in 1958 allowed for more human-readable instructions, making software development easier and more portable across different computer architectures. Software in a programming language is run through a compiler or interpreter to execute on the architecture's hardware. Over time, software has become complex, owing to developments in networking, operating systems, and databases. Software can generally be categorized into two main types: # operating systems, which manage hardware resources and provide services for applications # application software, which performs specific tasks for users The r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
