Архив метки: HEVC

Deep Render believes AI holds the key to more efficient video compression

Chri Besenbruch, CEO of Deep Render, sees many problems with the way video compression standards are developed today. He thinks they aren’t advancing quickly enough, bemoans the fact that they’re plagued with legal uncertainty and decries their reliance on specialized hardware for acceleration.
“The codec development process is broken,” Besenbruch said in an interview with TechCrunch ahead of Disrupt, where Deep Render is participating in the Disrupt Battlefield 200. “In the compression industry, there is a significant challenge of finding a new way forward and searching for new innovations.”
Seeking a better way, Besenbruch co-founded Deep Render with Arsalan Zafar, whom he met at Imperial College London. At the time, Besenbruch was studying computer science and machine learning. He and Zafar collaborated on a research project involving distributing terabytes of video across a network, during which they say they experienced the shortcomings of compression technology firsthand.
The last time TechCrunch covered Deep Render, the startup had just closed a £1.6 million seed round ($1.81 million) led by Pentech Ventures with participation from Speedinvest. In the roughly two years since then, Deep Render has raised an additional several million dollars from existing investors, bringing its total raised to $5.7 million.
“We thought to ourselves, if the internet pipes are difficult to extend, the only thing we can do is make the data that flows through the pipes smaller,” Besenbruch said. “Hence, we decided to fuse machine learning and AI and compression technology to develop a fundamentally new way of compression data getting significantly better image and video compression ratios.”
Deep Render isn’t the first to apply AI to video compression. Alphabet’s DeepMind adapted a machine learning algorithm originally developed to play board games to the problem of compressing YouTube videos, leading to a 4% reduction in the amount of data the video-sharing service needs to stream to users. Elsewhere, there’s startup WaveOne, which claims its machine learning-based video codec outperforms all existing standards across popular quality metrics.
But Deep Render’s solution is platform-agnostic. To create it, Besenbruch says that the company compiled a dataset of over 10 million video sequences on which they trained algorithms to learn to compress video data efficiently. Deep Render used a combination of on-premise and cloud hardware for the training, with the former comprising over a hundred GPUs.
Deep Render claims the resulting compression standard is 5x better than HEVC, a widely used codec and can run in real time on mobile devices with a dedicated AI accelerator chip (e.g., the Apple Neural Engine in modern iPhones). Besenbruch says the company is in talks with three large tech firms — all with market caps over $300 billion — about paid pilots, though he declined to share names.
Eddie Anderson, a founding partner at Pentech and board member at Deep Render, shared via email: “Deep Render’s machine learning approach to codecs completely disrupts an established market. Not only is it a software route to market, but their [compression] performance is significantly better than the current state of the art. As bandwidth demands continue to increase, their solution has the potential to drive vastly improved commercial performance for current media owners and distributors.”
Deep Render currently employs 20 people. By the end of 2023, Besenbruch expects that number will more than triple to 62.
Deep Render believes AI holds the key to more efficient video compression by Kyle Wiggers originally published on TechCrunch
Deep Render believes AI holds the key to more efficient video compression

Netflix begins streaming in AV1 on Android

Netflix announced this week that it has started to stream titles in AV1 on Android in what could significantly help the two-year-old media codec gain wider adoption.
The world’s biggest streaming giant said on Wednesday that by switching from Google’s VP9 — which it previously used on Android — to AV1, its compression efficiency has gone up by 20%.
At the moment, only “select titles” are available to stream in AV1 for subscribers “who wish to reduce their cellular data usage by enabling the ‘Save Data’ feature,” the American firm said.
Netflix hasn’t shared much about the benefit AV1 will provide to customers, but the new media codec’s acceptance nonetheless sends a message by itself.
Tech giants, including Google, have spent years developing and improving media codecs as consumption of data skyrocketed and low-cost devices began to sell like hotcakes. But they just can’t seem to settle on one media codec and universally support it.
Think of Safari and YouTube, for instance. You can’t stream YouTube videos in 4K resolution on Safari, because Apple’s browser does not support Google’s VP9. And Google does not support HEVC for 4K videos on YouTube.
AV1 is supposed to be the savior media codec that gets universal support. It’s royalty-free and it works atop of open-source dav1d decoder that has been built by VideoLAN, best known for its widely popular media player VLC and FFmpeg communities. It is sponsored by the Alliance for Open Media.
Who are the members of Alliance for Open Media? Nearly all the big guys: Apple, Google, Amazon, Netflix, Nvidia, ARM, Facebook, Microsoft, Mozilla, Samsung and Tencent, among others.
But that’s not to say there aren’t roadblocks in the adoption of AV1. Compared to HEVC — the format that AV1 is supposed to replace in popularity — encoding in AV1 was noticeably slower a year ago, as per some benchmark tests.
Adoption of AV1 by various browsers, according to analytics firm StatCounter. Safari is yet to support it.
Netflix’s announcement suggests that things have improved. The streaming giant said its goal is to support AV1 on all of its platforms. “In the spirit of making AV1 widely available, we are sponsoring an open-source effort to optimize 10-bit performance further and make these gains available to all,” it said in a blog post.

Netflix begins streaming in AV1 on Android