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High-Definition Video Processor
Nvidia's High-Definition Digital Processing (HDVP) is an HDTV accelerator on the Geforce 2 GTS. It has a downscalar that supports 1080i and 720p to SDTV resolution. In combination with a tuner chip it creates an accelerated HDTV viewing system that supports time-shifted recording. The Geforce 2 GTS also includes second generation motion compensation, improved from the motion compensation on the Geforce 256. It does not seem to include IDCT acceleration. The HDVP also includes de-interlace acceleration including bob, weave, temporal filter, and advanced de-interlacing. Finally, HDVP supports subpicture compositing, and color enhancements including brightness, hue, contrast, and saturation. nVidia's HDVP would endure through the GeForce 4 Series in the Geforce 4 Ti NV25.http://www.activewin.com/reviews/hardware/graphics/nvidia/gf4ti4600/gf3.shtml See also * GeForce 256's Motion Compensation * Video Processing Engine * PureVideo * DirectX Video Acceleration (DxVA) API for Mic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NVidia
Nvidia CorporationOfficially written as NVIDIA and stylized in its logo as VIDIA with the lowercase "n" the same height as the uppercase "VIDIA"; formerly stylized as VIDIA with a large italicized lowercase "n" on products from the mid 1990s to early-mid 2000s. Though unofficial, second letter capitalization of NVIDIA, i.e. nVidia, may be found within enthusiast communities and publications. ( ) is an American multinational technology company incorporated in Delaware and based in Santa Clara, California. It is a software and fabless company which designs graphics processing units (GPUs), application programming interface (APIs) for data science and high-performance computing as well as system on a chip units (SoCs) for the mobile computing and automotive market. Nvidia is a global leader in artificial intelligence hardware and software. Its professional line of GPUs are used in workstations for applications in such fields as architecture, engineering and construction, media ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HDTV
High-definition television (HD or HDTV) describes a television system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since 1936; in more recent times, it refers to the generation following standard-definition television (SDTV), often abbreviated to HDTV or HD-TV. It is the current de facto standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television and Blu-ray Discs. Formats HDTV may be transmitted in various formats: * 720p (1280 horizontal pixels × 720 lines): 921,600 pixels * 1080i (1920×1080) interlaced scan: 1,036,800 pixels (~1.04 MP). * 1080p (1920×1080) progressive scan: 2,073,600 pixels (~2.07 MP). ** Some countries also use a non-standard CEA resolution, such as 1440×1080i: 777,600 pixels (~0.78 MP) per field or 1,555,200 pixels (~1.56 MP) per frame When transmitted at two megapixels per frame, HDTV provides about five times a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SDTV
Standard-definition television (SDTV, SD, often shortened to standard definition) is a television system which uses a resolution that is not considered to be either high or enhanced definition. "Standard" refers to it being the prevailing specification for broadcast (and later, cable) television in the mid- to late-20th century, and compatible with legacy analog broadcast systems. The two common SDTV signal types are 576i, with 576 interlaced lines of resolution, derived from the European-developed PAL and SECAM systems, and 480i based on the American NTSC system. Common SDTV refresh rates are 25, 29.97 and 30 frames per second. Both systems use a 4:3 aspect ratio. Standards that support digital SDTV broadcast include DVB, ATSC, and ISDB. The last two were originally developed for HDTV, but are also used for their ability to deliver multiple SD video and audio streams via multiplexing. In North America, digital SDTV is broadcast in the same 4:3 aspect ratio as NTSC si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geforce 256
The GeForce 256 is the original release in Nvidia's "GeForce" product-line. Announced on August 31, 1999 and released on October 11, 1999, the GeForce 256 improves on its predecessor (RIVA TNT2) by increasing the number of fixed pixel pipelines, offloading host geometry calculations to a hardware transform and lighting (T&L) engine, and adding hardware motion compensation for MPEG-2 video. It offered a notably large leap in 3D PC gaming performance and was the first fully Direct3D 7-compliant 3D accelerator. The chip was manufactured by TSMC using its 220 nm CMOS process. There are two versions of the GeForce 256 the SDR version released in October 1999 and the DDR version released in mid-December 1999 each with a different type of SDRAM memory. The SDR version uses SDR SDRAM memory from Samsung Electronics, while the later DDR version uses DDR SDRAM memory from Hyundai Electronics (now SK Hynix). Architecture GeForce 256 was marketed as "the world's first 'GPU', or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geforce 256
The GeForce 256 is the original release in Nvidia's "GeForce" product-line. Announced on August 31, 1999 and released on October 11, 1999, the GeForce 256 improves on its predecessor (RIVA TNT2) by increasing the number of fixed pixel pipelines, offloading host geometry calculations to a hardware transform and lighting (T&L) engine, and adding hardware motion compensation for MPEG-2 video. It offered a notably large leap in 3D PC gaming performance and was the first fully Direct3D 7-compliant 3D accelerator. The chip was manufactured by TSMC using its 220 nm CMOS process. There are two versions of the GeForce 256 the SDR version released in October 1999 and the DDR version released in mid-December 1999 each with a different type of SDRAM memory. The SDR version uses SDR SDRAM memory from Samsung Electronics, while the later DDR version uses DDR SDRAM memory from Hyundai Electronics (now SK Hynix). Architecture GeForce 256 was marketed as "the world's first 'GPU', or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Processing Engine
nVidia introduced the Video Processing Engine or VPE with the GeForce 4 MX. It is a feature of nVidia's GeForce graphics processor line that offers dedicated hardware to offload parts of the MPEG2 decoding and encoding. The GeForce Go FX 5700 rolled out the VPE 3.0. The VPE later developed into nVidia's PureVideo. VPE 1 *hardware MPEG2 decoding, *inverse quantization (IQ) *inverse discrete cosine transform (IDCT) *motion compensation *colour space conversion (CSC) functions *hardware subpicture alpha blending *Adaptive De-interlacing *5 Horizontal x 3 Vertical Taps Scaling & Filtering *Independent Hardware Color Enhancements and Digital Vibrance Control *Component out supporting 720i and 1080i *master sync generator to control the sync levels *interlacer to output 480i and 1080i interlaced modes and a TV encoder, which operates in digital-to-analogue converter (DAC) mode with Tri Level Sync. VPE supports the first two of these element and all that is required to ship a graphics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PureVideo
PureVideo is Nvidia's hardware SIP core that performs video decoding. PureVideo is integrated into some of the Nvidia GPUs, and it supports hardware decoding of multiple video codec standards: MPEG-2, VC-1, H.264, HEVC, and AV1. PureVideo occupies a considerable amount of a GPU's die area and should not be confused with Nvidia NVENC. In addition to video decoding on chip, PureVideo offers features such as edge enhancement, noise reduction, deinterlacing, dynamic contrast enhancement and color enhancement. Operating system support The PureVideo SIP core needs to be supported by the device driver, which provides one or more interfaces such as NVDEC, VDPAU, VAAPI or DXVA. One of these interfaces is then used by end-user software, for example VLC media player or GStreamer, to access the PureVideo hardware and make use of it. Nvidia's proprietary device driver is available for multiple operating systems and support for PureVideo has been added to it. Additionally, a free device d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DirectX Video Acceleration
DirectX Video Acceleration (DXVA) is a Microsoft API specification for the Microsoft Windows and Xbox 360 platforms that allows video decoding to be hardware-accelerated. The pipeline allows certain CPU-intensive operations such as iDCT, motion compensation and deinterlacing to be offloaded to the GPU. DXVA 2.0 allows more operations, including video capturing and processing operations, to be hardware-accelerated as well. DXVA works in conjunction with the video rendering model used by the video card. DXVA 1.0, which was introduced as a standardized API with Windows 2000 and is currently available on Windows 98 or later, can use either the overlay rendering mode or VMR 7/9. DXVA 2.0, available only on Windows Vista, Windows 7, Windows 8 and later OSs, integrates with Media Foundation (MF) and uses the Enhanced Video Renderer (EVR) present in MF. Overview The DXVA is used by software video decoders to define a codec-specific pipeline for hardware-accelerated decoding and ren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Windows
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone. The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Windows is the most popular desktop operating system in the world, with 75% market share , according to StatCounter. However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android's massive growth. , the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers. Genealogy By marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VDPAU
Video Decode and Presentation API for Unix (VDPAU) is a royalty-free application programming interface (API) as well as its implementation as free and open-source library () distributed under the MIT License. VDPAU is also supported by Nvidia. The VDPAU interface is to be implemented by device drivers, such as Nvidia GeForce driver, nouveau, amdgpu, to offer end-user software, such as VLC media player or GStreamer, a standardized access to available video decompression acceleration hardware in the form of application-specific integrated circuit (ASIC) blocks on graphics processing units (GPU), such as Nvidia's PureVideo or AMD's Unified Video Decoder and make use of it. VDPAU is targeted at Unix-like operating systems (including Linux, FreeBSD, Solaris). Functional range of the interface VDPAU allows video programs to access the specialized video decoding ASIC on the GPU to offload portions of the video decoding process and video post-processing from the CPU to the GPU. Curr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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