Differences and Details of AVS and H.264
AVS is a digital audio and video codec technology standard English abbreviation. It is the second-generation digital audio and video source standard that my country leads. It has independent intellectual property, which is approved for national standards this year and is officially implemented in March 1. Its coding efficiency is comparable to competitive international standard MPEG-4 / H.264, which represents the international advanced level, widely used in various fields such as radio, communications, television, entertainment. Breaking AVS standards for my country's industrial chain for building "technology → patents → standard → chip and software → machine and system manufacturing → digital media operation and cultural industry" provides a rare opportunity.
The main two series of international audio and video codec standards: IsoieCJTC1 MPEG series standard; ITU is for multimedia-formulated H.26X series video coding standards and G.7 series audio coding criteria. The MPEG-2 developed by MPEG and ITU in 1994 is a representative of the first generation audio and video codec standard and is currently the most popular audio and video standards.
After more than ten years of evolution, audio and video coding technology itself and industry application background have changed significantly, and later, there is a beautiful generation. There are four source coding standards that can be selected by the audio and video industries: MPEG-2, MPEG-4, MPEG-4 AVC (referred to as H.264, also known as JVT, AVC), AVS.
It can be estimated that MPEG-2 is about to exit historical stations due to the reason for the technology of old age needs to be updated and charged. AVS and H.264 Who will become the standard of digital audio and video industries? This problem has not been resuspended, and the comparison of these two standards has become the focus of interest in the industry.
AVS is the second-generation source coding standard with independent intellectual property rights. As the name suggests, "Source" is the "source" of the information, the key issue of source coding technology solution is the digital audio and video mass data (ie, initial data, source) encoding compression problem, so digital audio and video codec technology. Obviously, it is the premise of digital information transmission, storage, playback, etc., which is the commonal foundation standard for digital audio and video industries. The AVS standard is the "Information Technology Advanced Voice Video Coding" series of standards, AVS standards include four major technical standards and consistency tests such as system, video, audio, digital copyright management and other support standards.
H.264 is a new digital video encoding, a joint video group (JVT: Joint Video Team), which is established by ITU-T VCEG (Video Coding Expert Group) and ISO / IEC MPEG (Active Image Coding Expert Group). Standard, it is both the H.264 of ITU-T, and is also a Part 10 of ISO / IEC's MPEG-4. The MPEG-4, which is generally mentioned in the domestic industry, is a Part 2 of MPEG-4. H.264 Standard from January 1998, the draft was collected from July 2003, and the entire set of H.264 (ISO / IEC14496-10) specification was finalized. In January 2005, MPEG organization officially released H.264 verification reports, demonstrating the availability of H.264 and various tool sets, from standard perspective, and confirming the maturity of H.264, from standard development To the promulgation, H.264 has always been a video coding international standard for industrialized organizations such as ITU, MPEG, DVD, DVB, 3GPP.
Compared with H.264, the AVS is mainly characterized by: (1) High performance, the encoding efficiency of H.264 is at the same level; (2) low complexity, algorithm complexity is significantly lower than H.264, hardware and software The cost is lower than H.264; (3) my country has simple intellectual property, the patent authorization mode is simple, and the cost is low. Technology area
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