H.264 is the ITU-T VCEG (Video Coding Experts Group) and ISO / IEC MPEG (Moving Picture Coding Experts Group) Joint Video Team (JVT: joint video team) a new digital video coding standard developed, it both the ITU-T H.264, but also a part 10 ISO / IEC MPEG-4 of the.
H.264 standard, like before, is added to transform hybrid DPCM coding mode. But it is a "back to basics" simplicity of design, not many options, get much better compression performance than H.263 ++; strengthening the ability to adapt to a variety of channels, a "network-friendly" structure and syntax, facilitate processing of the error and packet loss; target range wider application, to meet the different rates, different resolutions and different transmission requirements (storage) of the case; the basic system is open, without the use of the copyright.
Several companies are working on a programmable chip capable of decoding the H.264 / AVC video.
In January 2005, Broadcom (the BCM7411), Conexant (the CX2418X), Neomagic (MiMagic 6) and STMicroelectronics (the STB7100) Several companies offer samples available for testing.
Sigma Designs is expected to provide samples in March 2005. The emergence of these chips will greatly promote the rapid adoption of low-cost ability to play SD and HD resolution of H.264 / AVC video. Four kinds of these five chip (except Neomagic chip, it is for low-power applications) have the ability to play high-definition resolution video, and most of them will support High Profile standard.
Apple has integrated into the H.264 version of Mac OS X v10.4 (Tiger nickname: TIger), and released in May 2005, H.264 support QuickTIme version 7.0 in April 2005, Apple upgraded the software DVD. Studio Pro to support the authorization of the high-definition format content. The software supports content on HD-DVD format, burn to a standard DVD or HD-DVD media (although it is no corresponding burner). In order to play on a standard DVD burning hardware HD-DVD content, what is needed is a PowerPC G5, the software is Apple DVD Player v4.6, as well as Mac OS X v10.4 or later.
Envivio has to provide standard-definition real-time encoder for H.264 multicast and offline with HD (720p, 1080i, 1080p) encoder. Envivio The company also provided for windows, Linux and Macintosh platforms H.264 decoder, H.264 video servers and licensing tools. Modulus Viode offers broadcast, telephone with broadcast-quality SD H.264 real-time encoder, and it announced that it would provide high-definition real-time encoder (ME6000) and mid-2005. The company had in April 2004 demonstration at NAB over high-definition real-time encoder, and access to "Pick Hit" award. The company uses LSI Logic's technology.
Tandberg television company introduced the EN5990 real-time encoder. DirecTV and BSkyB have put EN5990 encoder used for their direct broadcast satellite service (DBS). Harmonic (Harley) also launched their real-time encoder (Model: DiviCom MV 100). TF1 (France broadcasters) and Video Networks Limited (VNL) home video-on-demand service in London has announced the use of the product. Pace Company (Pace Micro) Some of the major broadcast satellite companies provide set-top boxes. Sony's PSP (PlayStaTIon Portable) provide support for H.264 Main Profile Level 3 decoding in hardware.
Nero Digital has introduced a package of Nero AG and Ateme jointly developed to provide support for H.264 encoding, and access to "Pick Hit" [[1]] awards at Doom9. Sorenson provides H.264 implementation. Related codecs Sorenson AVC Pro codec is already included in the Sorenson Squeeze 4.1 for MPEG-4 in. Free software version of the x264 codec download software under the GPL.
InterVideo's WinDVD 7 on June 24 officially released. Release version is divided into WinDVD 7 Gold Gold and WinDVD 7 PlaTInum Platinum, Platinum Edition supports H.264 / MPEG-4 AVC decode and play, recommended configuration is P4 3.6G. We have now completed the H.264 encoder IP cores can be 30 frames / sec (25 frames / sec) of 720 × 480 (704x576) pixels SDTV video encoding. At a rate of 30 frames / sec when the operating frequency of such video encoding 55MHz, power consumption is about 100mW (when the design process is 0.18μm). Approximately 300k gate circuit specification, support basic specification (Baseline Profile), of level 1 to 3. Technology area
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