技术标签: VP9

From VP9 to AV1 and beyond

Google embarked on the WebM Project in 2010 to develop open source, royalty-­free video codecs designed specifically for media on the Web. The second generation codec released by the WebM project, VP9, ­is currently served by YouTube, and enjoys billions of views per day. Realizing the need for even greater compression efficiency and to cope with the ever-increasing demand for video on the web, Google joined a consortium of major tech companies called the Alliance for Open Media in 2016, and started an ambitious project to develop a next generation royalty-free codec AV1. AV1 was finalized in June 2018, and achieves about an one-third reduction in bandwidth over current generation codecs VP9 and HEVC at a practical hardware and software complexity. This makes AV1 the most advanced video codec available today that is also royalty-free. In this talk, I will provide a technical overview of the most innovative coding tools in AV1, followed by coding results on standard test sets compared against VP9 and HEVC.

LiveVideoStack

AV1 VP9 视频编解码 LiveVideoStackCon 2018

AV1的实时模式

不久前,Google Duo宣布将全面转向AV1。相比于VP9,AV1能够带来更好的编码效率,为用户提供更好的视频体验。本文来自Google软件工程师 姜健在LiveVideoStack线上分享的内容。

姜健

AV1 VP9 视频编解码 Google 音视频

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