As digital audio and video codec technology, domestic standard, AVS has been from government, industry and the broad support of the people, in many occasions and many articles, the author has repeatedly even behind the AVS. AVS standards of the most important video coding standard has been issued by the Standardization Administration official, come into operation on 1 March.
With friends friends have asked: "MPEG4 how to not work, insist you use AVS?"
I The answer: "MPEG4 how not? Line, including the H.264 standard, including all three meet the IPTV, digital TV and mobile video needs. The question is, when a Chinese and a foreigner holding the same thing placed in front of you, you are willing to give money to whom? When the Chinese people bid lower than foreigners, you are willing to give so much money to foreigners? "
In fact, the author not only not narrow nationalists, and the market economy fans. But things have a stage of development, any country would protect vulnerable industries. I do not deny that supports AVS blending elements of patriotic and national sentiments, but even aside these factors and emotions aside, AVS is still strong everyone's understanding and support. The so-called facts speak for themselves, let us count three items account to see made in China AVS standard, and foreign MPEG4, H.264 one is better?
The first financial account
Economy is the driving force of social and historical development of the first is the fundamental motivation for the operation of markets, since on the market economy, we took off as the economy first and see what the standard cost-effective to use.
Prior to the application based on MPEG2 standard, a set-top box or a built-in MPEG2 TV charges 2.5 dollars. As MPEG4 and H.264 standard commercial, not only the hardware and software to receive royalties, but also to receive programming on-demand, it is clear, for each household, they should bear the cost base is much larger than the USD 2.5, Furthermore, he pays a monthly payment on a considerable amount of on-demand costs. Look at the AVS it, only cost 1 yuan for a nominal cost. AVS Working Group, said the Secretary-General Huang Tiejun, the next decade to provide enterprises with AVS decoder chip can save 1 billion U.S. dollars for the company's real money. In fact, he considered as too conservative in this account. SARFT plans by 2015, China's TV holdings will reach 600 million units. If the completion time, digital television, have adopted MPEG-2 standard, then the total required to pay not less than 600 million MPEG-2 decoder royalties, a total of 1.5 billion.
This also is not, in the recently held "two sessions", academicians, Beijing University of Posts and Telecommunications Chen Junliang members speculate: If 200 million TV using MPEG4 or H.264 standard, need to pay 1 billion U.S. dollars in addition to the MPEG2 patent other than user fees, need to pay: (1) 200 000 000 脳 0.2 缇庡厓 (MPEG2 license fee) = 80 million U.S. dollars; (2) the decoding program user fees, according to the average user per day for each television set to watch two TV series calculation : 200 000 000 脳 0.04 (U.S. dollars / day) 脳 365 days = 2.92 billion U.S. dollars. Therefore, the use of MPEG-4 or H.264 standard, the next 10 years China may be charged a total of up 230 billion yuan of MPEG-4 and H.264 royalties. But if you use AVS, then can bring the country 300 billion yuan in industrial scale.
Obviously, operators, equipment manufacturers and consumers, but also means you can save a lot of patent costs and demand charges, dramatically reduce operating costs. .
Second tranche of technical account
Started late and incomplete industry chain is the main reason for the industry are not optimistic about AVS. However, it is because of AVS and H.264 MPEG4 walk in the back, so there is no historical burden, there is no upgrade costs, etc., and start at the beginning, AVS to focus on high-end, forming a large the advantage.
Published technical information on the current view, made AVS and MPEG4, H.264 in the low, AVS and H.264 is better than MPEG4. AVS standard solution is simple, especially commendable is the AVS data compression rate is higher than the international standard - MPEG-4 is 1.4 times of MPEG-2, AVS is the MPEG-2 more than twice. The AVS and H.264 both better technical performance which is no conclusion. However, the industry's general view is: AVS if not beyond H.264, but not less than his. And in some ways, such as compression rate, according to Fan Jianping, deputy director of CAS Institute of Computing, said maintaining the same resolution in the case, AVS data compression rate is higher than international standards. As you know, for network television, the bandwidth problem is the main factor restricting their development, while the compression rate means lower bandwidth requirements, which undoubtedly makes the AVS has great advantages in technology.
The third document development account
In fact, AVS's the advantage lies not only in reduced costs, but also the compatibility advantage. MPEG4 and H.264 with the mutual exclusion of different, AVS start the application taking into account the market factors, technically compatible with MPEG2 standard, and its supporting chips, "Phoenix Core II" is compatible with H.264 standard, which AVS industry makes more conducive to marketing.
Last year, the Ministry of Information Industry Software and Integrated Circuit Promotion Center and the CAS Institute of Computing, IC Design Center in Ningbo in the Section on core open source issues Fung formally signed, marking the "Phoenix Core 1" the whole society of the open source IP core services officially launched. This, AVS Industry Alliance, said Zhang Weimin, the Secretary-General, the core of open source means phoenix in the industrialization of AVS standard road has taken an important step. The call of the open-source, AVS Working Group member has been extended to include Lenovo, TCL, UT Starcom, Huawei, ZTE and Nokia, Intel, IBM, Philips, including 132 domestic and foreign enterprises or research institutes . Clearly, the development prospects of open source makes the AVS international standards than the two more clearly.
Pull that calculation, I do not know how you feel? It is said that the digital audio and video codec standard of protection, has as one of the three writes MII support in the field, "Eleventh Five-Year Plan". A user said: "So, there is a need to discuss whom to do that?"
Yes ah, being the case, we have no reason not to support the AVS it?
相关链接:
MKV To DivX
ASF to MPEG
M2TS to MOV
ELECTRONICS173
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