H. 2. 64/MPEG- 4 AVC - Wikipedia, the free encyclopedia. H. 2. 64 or MPEG- 4 Part 1. Advanced Video Coding (MPEG- 4 AVC) is a block- oriented motion- compensation- based video compression standard that is currently one of the most commonly used formats for the recording, compression, and distribution of video content. The intent of the H. AVC project was to create a standard capable of providing good video quality at substantially lower bit rates than previous standards (i. MPEG- 2, H. 2. 63, or MPEG- 4 Part 2), without increasing the complexity of design so much that it would be impractical or excessively expensive to implement. An additional goal was to provide enough flexibility to allow the standard to be applied to a wide variety of applications on a wide variety of networks and systems, including low and high bit rates, low and high resolution video, broadcast, DVD storage, RTP/IP packet networks, and ITU- T multimedia telephony systems.
The H. 2. 64 standard can be viewed as a . A specific decoder decodes at least one, but not necessarily all profiles. The decoder specification describes which profiles can be decoded. H. 2. 64 is typically used for lossy compression, although it is also possible to create truly lossless- coded regions within lossy- coded pictures or to support rare use cases for which the entire encoding is lossless. H. 2. 64 was developed by the ITU- TVideo Coding Experts Group (VCEG) together with the ISO/IEC JTC1. Moving Picture Experts Group (MPEG). The project partnership effort is known as the Joint Video Team (JVT). The ITU- T H. 2. 64 standard and the ISO/IEC MPEG- 4 AVC standard (formally, ISO/IEC 1. The final drafting work on the first version of the standard was completed in May 2. High Efficiency Video Coding (HEVC), a. H. 2. 65 and MPEG- H Part 2 is a successor to H. MPEG- 4 AVC developed by the same organizations, while earlier standards are still in common use. H. 2. 64 is perhaps best known as being one of the video encoding standards for Blu- ray Discs; all Blu- ray Disc players must be able to decode H. It is also widely used by streaming internet sources, such as videos from Vimeo, You. Tube, and the i. Tunes Store, web software such as the Adobe Flash Player and Microsoft Silverlight, and also various HDTV broadcasts over terrestrial (Advanced Television Systems Committee standards, ISDB- T, DVB- T or DVB- T2), cable (DVB- C), and satellite (DVB- S and DVB- S2). H. 2. 64 is protected by patents owned by various parties. A license covering most (but not all) patents essential to H. MPEG LA. MPEG LA has allowed the free use of H. Cisco Systems pays royalties to MPEG LA on behalf of the users of binaries for its open source H. The H. 2. 64 name follows the ITU- T naming convention, where the standard is a member of the H. VCEG video coding standards; the MPEG- 4 AVC name relates to the naming convention in ISO/IECMPEG, where the standard is part 1. ISO/IEC 1. 44. 96, which is the suite of standards known as MPEG- 4. The standard was developed jointly in a partnership of VCEG and MPEG, after earlier development work in the ITU- T as a VCEG project called H. L. It is thus common to refer to the standard with names such as H. AVC, AVC/H. 2. 64, H. MPEG- 4 AVC, or MPEG- 4/H. AVC, to emphasize the common heritage. Occasionally, it is also referred to as . For example, the video compression standard known as MPEG- 2 also arose from the partnership between MPEG and the ITU- T, where MPEG- 2 video is known to the ITU- T community as H. VCEG was chaired by Gary Sullivan (Microsoft, formerly Picture. Tel, U. S.). The first draft design for that new standard was adopted in August 1. H.264 dvr client software download social advice. H.264 dvr client software download search results. Client application specially developed for the embedded DVR/DVS.H.264 NETWORK Embedded DVR 16 channel. H.264 compression Two USB interface. Software PC playback Playback video file Software. H264 Network Embedded Dvr Software Download - PDF-HNEDSD14-WWRG7 2/4 H264 Network Embedded Dvr Software Download INTRODUCTION This particular H264 Network Embedded Dvr Software Download PDF start with Introduction, Brief. In 2. 00. 0, Thomas Wiegand (Heinrich Hertz Institute, Germany) became VCEG co- chair. In December 2. 00. VCEG and the Moving Picture Experts Group (MPEG . The JVT was (is) chaired by Gary Sullivan, Thomas Wiegand, and Ajay Luthra (Motorola, U. XAVC is a recording format designed by Sony that uses level 5.2 of H.264/MPEG-4 AVC, which is the highest level supported by that video standard. IP Homepage 'JVT document. S.: later Arris, U. S.). In June 2. 00. Fidelity range extensions (FRExt) project was finalized. From January 2. 00. November 2. 00. 7, the JVT was working on an extension of H. AVC towards scalability by an Annex (G) called Scalable Video Coding (SVC). The JVT management team was extended by Jens- Rainer Ohm (Aachen University, Germany). From July 2. 00. 6 to November 2. JVT worked on Multiview Video Coding (MVC), an extension of H. AVC towards free viewpoint television and 3. D television. That work included the development of two new profiles of the standard: the Multiview High Profile and the Stereo High Profile. The standardization of the first version of H. AVC was completed in May 2. In the first project to extend the original standard, the JVT then developed what was called the Fidelity Range Extensions (FRExt). These extensions enabled higher quality video coding by supporting increased sample bit depth precision and higher- resolution color information, including sampling structures known as Y'Cb. Cr 4: 2: 2 (=YUV 4: 2: 2) and Y'Cb. Cr 4: 4: 4. Several other features were also included in the Fidelity Range Extensions project, such as adaptive switching between 4. The design work on the Fidelity Range Extensions was completed in July 2. September 2. 00. 4. Further recent extensions of the standard then included adding five other new profiles intended primarily for professional applications, adding extended- gamut color space support, defining additional aspect ratio indicators, defining two additional types of . Specified in Annex G of H. AVC, SVC allows the construction of bitstreams that contain sub- bitstreams that also conform to the standard, including one such bitstream known as the . For temporal bitstream scalability (i. In this case, high- level syntax and inter- prediction reference pictures in the bitstream are constructed accordingly. On the other hand, for spatial and quality bitstream scalability (i. In this case, inter- layer prediction (i. The Scalable Video Coding extensions were completed in November 2. The next major feature added to the standard was Multiview Video Coding (MVC). Specified in Annex H of H. AVC, MVC enables the construction of bitstreams that represent more than one view of a video scene. An important example of this functionality is stereoscopic 3. D video coding. Two profiles were developed in the MVC work: Multiview High Profile supports an arbitrary number of views, and Stereo High Profile is designed specifically for two- view stereoscopic video. The Multiview Video Coding extensions were completed in November 2. Versions. Each version represents changes relative to the next lower version that is integrated into the text. Version 1: (May 3. First approved version of H. AVC containing Baseline, Main, and Extended profiles. With the use of H. MPEG- 2 Part 2 are reported. For example, H. 2. Digital Satellite TV quality as current MPEG- 2 implementations with less than half the bitrate, with current MPEG- 2 implementations working at around 3. Mbit/s and H. 2. 64 at only 1. Mbit/s. Both the Blu- ray Disc format and the now- discontinued HD DVD format include the H. AVC High Profile as one of 3 mandatory video compression formats. The Digital Video Broadcast project (DVB) approved the use of H. AVC for broadcast television in late 2. The Advanced Television Systems Committee (ATSC) standards body in the United States approved the use of H. AVC for broadcast television in July 2. ATSC broadcasts within the United States. In particular, some such key features include: Multi- picture inter- picture prediction including the following features. Using previously encoded pictures as references in a much more flexible way than in past standards, allowing up to 1. In profiles that support non- IDR frames, most levels specify that sufficient buffering should be available to allow for at least 4 or 5 reference frames at maximum resolution. This is in contrast to prior standards, where the limit was typically one; or, in the case of conventional . This particular feature usually allows modest improvements in bit rate and quality in most scenes. The supported luma prediction block sizes include 1. Chroma prediction block sizes are correspondingly smaller according to the chroma subsampling in use. The ability to use multiple motion vectors per macroblock (one or two per partition) with a maximum of 3. B macroblock constructed of 1. The motion vectors for each 8. This feature was notably left out from MPEG- 4 ASP. Six- tap filtering for derivation of half- pel luma sample predictions, for sharper subpixel motion- compensation. Quarter- pixel motion is derived by linear interpolation of the halfpel values, to save processing power. Quarter- pixel precision for motion compensation, enabling precise description of the displacements of moving areas. For chroma the resolution is typically halved both vertically and horizontally (see 4: 2: 0) therefore the motion compensation of chroma uses one- eighth chroma pixel grid units. Weighted prediction, allowing an encoder to specify the use of a scaling and offset when performing motion compensation, and providing a significant benefit in performance in special cases. This includes implicit weighted prediction for B- frames, and explicit weighted prediction for P- frames. Spatial prediction from the edges of neighboring blocks for . This includes luma prediction block sizes of 1. This design is conceptually similar to that of the well- known discrete cosine transform (DCT), introduced in 1. N. Ahmed, T. Natarajan and K. R. Rao, which is Citation 1 in Discrete cosine transform. However, it is simplified and made to provide exactly specified decoding. An exact- match integer 8. This design is conceptually similar to that of the well- known DCT, but simplified and made to provide exactly specified decoding. Adaptive encoder selection between the 4. CABAC compresses data more efficiently than CAVLC but requires considerably more processing to decode. Context- adaptive variable- length coding (CAVLC), which is a lower- complexity alternative to CABAC for the coding of quantized transform coefficient values.
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