Ali266, based on international video codec standard H.266 / VVC

On January 27, the reporter was informed that Ali266, Ali266, based on the new generation of international video codec standard H.266 / VVC. The decoder is Ali's self-developed mobile real-time decoder, and 4K decoding speed is 16 times that of VVC standard reference software. The medium and low-end mobile phones integrated Ali266 can also watch the latest VVC video or live in clear and smoothly. This will accelerate the VVC standard application, bring 8K, AR / VR and other applications. VVC is the latest international video codec standard, which saves nearly 50% of the transport traffic, Ali and other Chinese companies and institutional depth participation standards to formulate and contribute core technology. While VVC pursues ultimate compression efficiency, it also leads to double decoding complexity than the above-in-one standard, which is a problem that the new standard is in urgent needovers in the mobile terminal. To this end, Ali Technical Team starts from Taobao live and other scenes, developing a new independent decoder architecture, and take the lead in achieving mobile high performance real-time soft decoding. Specifically, the team enhances the decoding speed through multi-core parallel, compiled optimization, memory occupancy and interview efficiency optimization, and more than 11,000 error code streams to implement CPU power consumption, memory Optimization of important indicators such as consumption and program robustness. For example, Ali266 decoded 4K sequence on Huawei P40 mobile phone is 16 times that of the VVC standard reference software, and the average decoding speed can reach 32FPS in multi-thread mode. (Figure: Ali266 decoding performance diagram, speed based on 8 bits closed ALF test code stream) The Ali266 can run smoothly in the middle and low-end mobile phones. On the 2017 Qualcomm Snapdragon 450 chip, the use of Ali266 Taobao live broadcast, short video and other applications can only play 720p video in real time, greatly verify the practicality of the VVC standard. The International Joint Video Technical Committee Jvet Chairman Gary Sullivan has a special optimization policy for Ali266 decoders for 8 bit grade video content in a summary of VVC deployment. Video Standardization Organization Incites L3. 1 Chairman, Dharma XG Laboratory Video Technical Lead said that 8-bit video is the most frequently used video format of China's online video, but the current VVC standard has not explicitly defined 8 bit video grades. To this end, in the recent JVET conference, Ali United 12 major companies involved in chips, mobile phones, Internet and other fields specifically proposed 8-bit video grade proposal, and issued a Chinese video industry on the international standard stage. Alibaba Tong Bian Technical Department Senior Expert Liang Shuzu said that the release of VVC high-performance decoders will greatly promote the landing of VVC standards, live in live broadcast, short video, online conference, cloud game and other fields. Upgrade and industrial change. Editor in charge: Psy, Read more