H.264 is a new digital video coding standard jointly developed by VCEG JVT of ITU-T and MPEG of ISO/IEC. It is not only H.264 of ITU-T, but also the 10 part of MPEG-4 of ISO/IEC. In June 2002, the 5th meeting of JVT passed the FCD Committee of H.264, and the first draft was completed in May 2006 at 5438+0. It was officially released in March 2003.
H.264, like the previous standard, is also a mixed coding mode of DPCM plus transform coding. However, it adopts a simple design of "returning to nature", and achieves much better compression performance than H.263++ without too many options. The adaptability to various channels is strengthened, and the "network-friendly" structure and grammar are adopted, which is beneficial to the handling of error code and packet loss; Wide application range, which can meet the requirements of different rates, different resolutions and different transmission (storage) occasions; Its basic system is open and can be used without copyright.
The application of H.264 standard provides technical support for video network transmission, especially for low bandwidth (such as wireless transmission). In today's information explosion, the market requires designers to launch products faster and faster. In order to maintain the competitiveness of products, they should maintain sufficient advantages in product prices and product application functions, especially in the field of multimedia market.
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