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    IQIYI push independent research QAV1 encoder: offline compression efficiency significantly more than 265

     

    Video needs to be compressed before network transmission. At certain compression efficiency, higher quality means higher code rates, increase bandwidth costs. Therefore, it is thus increasing compression efficiency to be pursuit of various video related companies. Among them, video compression coding is used as the core one of the cores, and it has become more and more attention. The results of the MSU World Video Encoder Competition held by Moscow State University have been announced, and this competition has a lot of TOP corporate teams in the same year to participate, including iQiyi, Tencent, Ali, Baidu, Intel, Google, etc. Among them, Iqiyi said that with the first QAV1 encoder of independently developed and achieved excellent results, the current QAV1 has fully reduced complexity brought by AV1 standard, while maintaining high compression ratio, there is obvious code speed Advantage. This makes the QAV1 follow-up to have a large lifting space. And Aiqi has already had the ability to produce the AV1 encoding format in large-scale production. According to data, iQiyi QAV1 is a good trade-off in terms of compression speed and quality. In the case where the main evaluation index SSIM bit is third, the average encoding speed is 1.63 times the first place. It is 2.52 times the second place. This year, the organizer continued to expand the material library, which was used to select the video material set of the competition to 18,418 videos, increased by 16.3% over the years. Finally, 50 game sequences were selected in complexity. There are 21 encoders in this year, of which 10 265 encoders, 6 AV1 encoders, 5 other standard encoders. Different from previous years, this year AV1 encoder shows significantly transcendence of 265 encoders, and the off-line grade 265 encoder performance has fallen before the SSIM indicator. In terms of compression / coding speed of this competition, iQiyi QAV1 encoders exceeds most 265 encoders at both speeds and compression ratios. This shows that in offline encoding scenes, the AV1 encoder compression efficiency exceeds 265 under the same or less computational resource consumption. In other words, the departure scene 265 265 is not only in terms of compression ratios, but also the advantages of calculating resources do not exist. IT House learned that AV1 hard solution ecology has been significantly breakthrough since 2020, including Intel, AMD, NVIDIA, Mediatek, Samsung, etc. have added AV1 hardware decoder support rows. With hardware support, AV1 coding is really a wide application basis. In addition to hardware ecology, video content love Qiyi, YouTube, Netflix, etc. are actively increasing the content of AV1 video, and domestic iQiyi in April this year, on computer browser, Android mobile terminal AV1 video encoding Format, becoming the first video website in China application AV1. Iqiyi QAV1 Encoder has completed the rate of distortion this year, and continues to significantly improve compression efficiency while maintaining a fast coding. In addition, the QAV1 encoder also supports multiple encoding functions such as 8K coding, high frame rate, HDR coding. In addition, in the wonderful fighting scene for the video, QAV1 also makes more detailed code rate allocation, and reaches a more perfect balance in bandwidth consumption and quality experience. Editor in charge: Psy, Read more

     

     

     

     

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