We’re excited about the new open source AV1 video & image codec. Nearly every major tech company seems to be behind it, so what’s the motivation? Our sysadmin doggo Riley and software developer wolf s0ph0s join to go on a deep dive on the history of AV1, what features it will bring, when it will start to appear, and how it even works.
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Watch Video Discussed: AV1 is a free video codec with more intelligent image compression that takes advantage of how good computing power is getting, while being 50%+ more efficient in bandwidth than most existing solutions Developed by Alliance for Open Media
Backed by: Amazon, Apple, ARM, Cisco, Facebook, Google, IBM, Intel, Microsoft, Mozilla, Netflix, NVIDIA, Samsung, Tencent More support from: BBC, AMD, Adobe, Hulu, CableLabs, Polycom, VideoLAN, Vimeo, Twitch, AND MORE….
Built off a foundation of Google’s already deployed VP9, Google’s planned VP10, Cisco’s Theora, and Xiph’s Dalla
Existing codecs: Today’s older H.264 is a licensing nightmare, the successor H.265 is even worse
Apple didn’t like VP9’s licensing or battery consumption
DVD uses H.262 (MPEG-2), Blu-ray uses H.264, and UHD Blu-ray uses H.265
Cisco’s OpenH264 decoder announced in 2013 saved Mozilla $9.75 million a year
H.265 carries 23 patents
NVIDIA’s matrix of codec support for encoding & decoding on various GPU models
AV1 is already here! YouTube has a beta setting you can enable, plus a playlist of videos known to support AV1
Netflix has started deploying AV1
LG’s latest gen SmartTV models have native AV1 decoding
AOM’s timeline has hit phase 4.
It is rumored Apple will announce AV1 support at the next WWDC
AV1 bit-stream frozen in December 2018
AV1 encoding with SVT-AV1 is now faster than H.265
AV1 uses Opus for audio by default, which sounds good compared to other codecs
Netflix wrote a tech blog on using AV1 for images, aka AVIF format Farm photo example
Barn door photo example
AV1 is very smart Perceptual Vector Quantization
Variably Sized Blocks
Lapped Transforms
Chroma from Luma Prediction
Support for new motion types such as warped motion
Film grain synthesis
and much much more
JPEG in comparison primarily uses Discreet Cosine Transform
Do I look like I know what a JPEG is?
Three encoders: Reference encoder (proves every concept but very slow)
rav1e backed by Xiph Mozilla and Vimeo
SVT-AV1 backed by Netflix and Intel
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