H.264 industry knowledge

H.264 is one of the latest video encoding formats defined by MPEG-4 standards, and some are also called AVC. H.264 has a high data compression ratio. Under the same image quality conditions, H.264's compression ratio is more than twice that of the MPEG-2, Which is 264 ~ of the MPEG-4 ~ 2 times. Compared with compression technology such as MPEG-2 and MPEG-4 ASP, H.264 compression technology will greatly save the user's download time and data traffic charges. In particular, H. 264 has a high compression ratio and a high quality and smooth image. 264 of the compressed video data requires less bandwidth and is more economical during network transmission.

H.264 is a high-performance video codec technology. At present, there are two organizations that develop video codec technology internationally, one is "ITU (ITU-T)", which has developed standards such as H.261, H.263, H.263 +, etc, the other is the International Organization for Standardization (ISO) which has developed standards such as MPEG-1, MPEG-2, MPEG-4, etc. H. 264 is a new digital video coding standard jointly developed by the Joint Video group (JVT) formed by the two organizations, so it is not only the ITU-T H. 264 is also an ISO/IEC MPEG-4 advanced video encoding (advancedvideo coding, AVC) and will become Part 1 of the MPEG-4 standard. Therefore, whether it is MPEG-4 AVC, MPEG-4 Part 10, or ISO/IEC 14496-10, all refer to H.264.

The current integrated circuit for implementing H.264 algorithm to complete video/audio coding/decoding is mainly DSP (Digital Signal Processing) chip and ASIC (dedicated ic) chip. In terms of technology and cost, ASIC is more suitable for productization than DSP, but the development cycle of ASIC chip is long and cannot be modified once determined; the DSP chip is highly programmable, maintainable, reusable, and open. New functions can be added and the product can be upgraded continuously based on the customer's needs, and multiple specifications of codec technology can be implemented, at the same time, it satisfies product differentiation and standardization, and the codec software development based on DSP can also absorb the latest technical achievements of Codec in a timely manner. With the increase of DSP clock speed, DSP-based Integrated Circuit application technology has become a mainstream application. The benefits of ASIC are more reflected in cost and power consumption. At present, the two types of chips coexist for a period of time.

Full HD H.264 video codecs can be used for game consoles, laptops, portable media players, set-top boxes, DVD players, and DVRs.

Through super low latency Technology (SLL technology), tvi3602 (cnw3602) can realize the decoding latency from 1080p60 to less than 1 ms, which is the smallest latency in the industry. For wireless video applications, the original video bit rate during wired transmission often exceeds the available wireless bandwidth, therefore, video encoding and decoding must be performed before and after wireless transmission. Encoding/decoding brings about a certain latency, thus affecting performance. It can be seen that the zero-latency performance of TVI 3602 (cnw3602) is a key requirement for wireless video applications. In addition, tvi3602 (cnw3602) supports advanced error recovery and hiding features, which ensures that images without distortion and high fidelity are obtained under the most unfavorable wireless channel conditions.

Currently, in the video conferencing and monitoring Industries. 264 there are not many enterprises that integrate technology into their own products, which leads many project managers to be confused in their selection. However, today's small series will bring you good news, that is, a company will share h. 264 technology has accumulated seven years of experience as an industry giant. It is Bai Rui technology. Its anychat audio and video Interactive Development Platform (SDK) is a cross-platform instant messaging solution based on advanced H. 264 video coding standards, AAC audio coding standards and P2P technology, the high quality, wide adaptability, distributed, and modular Network Audio/Video interaction platform (Supporting windows, mobile, Linux, Android, and other platforms ), the WP8 platform is still under development!

H.264 industry knowledge