8/22/2023 0 Comments X264 video codec androidThe graph below illustrates the trade-off between encoder quality (vertical axis) and complexity (horizontal axis). In a paper, “ Towards much better SVT-AV1 quality-cycles tradeoffs for VOD applications,” jointly published with Intel at last year’s SPIE conference, we benchmarked multiple open source encoders - including x264, x265, libvp9, libaom, SVT AV1, and VVC reference encoder (vvenc) - for a video on demand (VOD) use case. Several open source and closed-source encoder implementations are ready for production, all almost as efficient as the AV1 reference encoder. We want to ensure that as we roll out AV1, it delivers real value to the people who use our apps.įinding the right AV1 encoders and decoders Our goal is to improve playback from what we currently offer with AVC and VP9. Over the past few years, Meta has worked closely with the open source community to optimize AV1 software encoder and decoder implementations for real-world, global-scale deployment. AV1 is royalty-free, and both the encoder and decoder implementations are open sourced, with very active development and good support. AV1 also has a much richer feature set than other video coding standards and can support most of Meta’s typical production usages. It delivers about 30 percent better coding efficiency than VP9 and HEVC - allowing people who use our apps to enjoy high-quality video at much lower bandwidth, and enabling us to maximize storage efficiency and reduce egress traffic, CDN prefetching/caching, and network congestion. AV1 is the first-generation royalty-free video coding standard developed by AOM, of which Meta is a founding member. We believe AV1 will be the most viable codec for Meta over the next several years. At the same time, however, each new standard has consumed substantially more energy and compute than the last, while necessitating encoders that were many times more complex. Newer-generation standard typically can reduce the bandwidth by about 30 percent to 50 percent compared with its predecessor while maintaining similar visual quality. Over the past two decades, researchers have developed video coding standards with ever-higher compression efficiency, including AVC, HEVC, and VVC, developed by MPEG/JVET, and VP9 and AV1, developed by Google and the Alliance for Open Media ( AOM). Choosing the most appropriate video coding formats - the algorithms for compressing and decompressing the file - is crucial. Meta has worked closely with the open source community to optimize AV1 software encoder and decoder implementations for real-world, global-scale deployment.Īs people create, share, and consume an ever-increasing volume of online videos, Meta is working to develop the most bandwidth-efficient ways to transcode content while maintaining reasonable compute and power consumption levels.It offers higher quality at a much lower bit rate compared with previous generations of video codecs. We believe AV1 is the most viable codec for Meta for the coming years.We’re sharing how we’re enabling production and delivery of AV1 for Facebook Reels and Instagram Reels.
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