China Mobile Migu successfully promoted the domestic standard of AVS3+HDR Vivid on mobile terminals and achieved large-scale commercial use

According to news from this website on September 25, the Hangzhou Asian Games officially opened on September 23, Beijing time. China Mobile Migu Company announced that as the official rights-holding broadcaster, in the live event service of this Asian Games, Create AVS3 eye color vision on-demand area and AVS3 live broadcast perspective in Migu Video and Migu Video Aikan Edition, and support HDR Vivid localized standard technology.

##▲ AVS3 on-demand area, picture source official news of China Mobile Migu Company, the same below

▲ AVS3 live broadcast perspective

Migu Company stated that

This is the first time in the industry to achieve large-scale commercial use of mobile AVS3 HDR Vivid domestic standard fusion point live broadcast, And piloting 2K/4K HDR Vivid on small screens and 8K Dual Vivid on large screens are of great significance in promoting the end-to-end implementation of my country’s independent intellectual property audio and video standards.

▲ AVS3 HDR Vivid

According to reports, in the mobile terminal business, mobile terminal chips are still dominated by overseas technical standards Status, the chip's support for domestic technical standards is still in its infancy,

leading to the problem that the native environment of mobile terminals cannot support high-quality AVS3 point live video playback.

In order to allow users of Migu Video to obtain a more realistic immersive visual experience during the Asian Games, and to cope with the risks that overseas chip supply interruptions and standard charges may bring to my country's audio and video industry, The Migu R&D team has carried out technological innovations in the head-end encoding, terminal decoding, terminal rendering and transmission architecture of AVS3 video. This site summarizes it as follows:

In the head-end, the AVS3 encoding standard is adopted.

Compared with H265 encoding at the same quality, the encoding performance is improved by 50%. Through intra-frame parallelism and frame-level parallelization technology, AVS3 50fps 10bit real-time encoding based on a general-purpose CPU server is realized, effectively improving the performance of 1080P 10bit 50fps real-time encoding. In terms of color processing, Migu has implemented the AVS3 standard conversion of H265 format metadata, and realized the simultaneous compatibility of HDR Vivid metadata on the encoding side with H265 and AVS3.

In the terminal,

Migu's self-research team has implemented the industry's first pure software decoding of AVS3 10bit and HDR Vivid based on mobile phones on iOS and Android terminals, which does not rely on hardware chips The computing power breaks through the restriction of chip card neck on the application of AVS3 standard. Even if the user's mobile phone chip does not support decoding of AVS3 10bit encoding format video, it supports viewing on more than 270 mobile phones, providing users with an immersive experience of 10bit HDR Vivid.

In terms of transmission technology, by creating an AVS3 streaming media service architecture based on linear expansion, it supports large-scale non-original AVS3 live streaming parallel streaming media forwarding services, while achieving AVS3 low-latency live source streaming dual links. Highly reliable production transmission and terminal playback frame tracking and cache control technology.

In addition, China Mobile Migu Company has

optimized the HDR Vivid metadata automatic generation algorithm based on the HDR Vivid standard. The curve curvature and threshold segmentation points of each interval of the mapping curve are adjusted according to the human eye perception characteristics, which reduces the overall brightness compression rate, color cast and contrast loss of the original image displayed on the target display terminal, and improves the display effect of highlight and dark details. It avoids problems such as overexposure of highlights and lack of details in dark areas, and finally achieves the ideal HDR Vivid end-to-end presentation effect in competition scenes.

China Mobile Migu Company stated that in the future, it will further improve the application effect and system efficiency of state-owned technical standards, and promote its application in other major events.

Explore the application prospects of a series of state-owned technical standards represented by AVS3 and HDR Vivid technology, fully embody the application value of state-owned ultra-high-definition technology standards, and hope to contribute its due strength to the improvement of my country's strength in the global audio-visual entertainment field . At the same time, China Mobile Migu will continue to work closely with industry alliance partners to continue to strengthen the application of state-owned technology standards, cope with possible bottleneck risks, and achieve independent control of the audio and video industry chain.

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