AV1 Encoder Optimization from the Decoder’s Point of View

Demuxed 2020 was a “don’t miss” event. More than 1,000 video engineers participated, and 28 video engineers, codec developers, and image scientists from Netflix, Disney, Facebook, Apple, LinkedIn, Akamai, Fastly, Cloudflare, VideoLan, and Visionular shared best practices, open-source projects, and the latest industry development trends in video. Our very own Zoe Liu presented a talk about optimizing an encoder from the perspective of the decoder. Video engineers understand the importance of ensuring playback stability and the role that the encoder plays. AV1 contains more than 100 coding tools as compared with its predecessor VP9. This is the key to AV1’s significantly improved coding...

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Dan Rayburn: Continuous Innovation is a Competitive Strategy

Dan Rayburn recently quoted me in an article he wrote titled, “Continuous Innovation Is a Competitive Strategy: Why 870 Million Monthly Users in Asia Depend on HEVC and AV1 Codec Standards.” When writing this blog post, I feel proud that in December 2020, Visionular is now supplying essential video encoding solutions to more than thirty leading video streaming app companies, services, and hyperscale platforms. The use cases span RTC and other low latency real-time applications, as well as VOD. Companies like Google,, Mobiuspace, ShareChat, Firework, H3C, Juphoon, Lomotif, Jumu, NetEase, SHAREit, TAL, Baidu, and others utilize our codec solutions to maintain...

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auroraimage avif performance over jpeg, webp, heif

Exploring the AV1 Image Format AVIF

TL;DR: AVIF is an image format based on the AV1 video codec. AVIF is an extraction from the keyframes of the AV1 codec developed by Alliance for Open Media (AOM). AVIF is compatible with HDR images, and it supports 10- and 12-bit color at full resolution. AVIF offers image compression that is up to ten times higher than popular formats like JPEG. AVIF is an excellent choice because: The AV1 codec standard and AVIF format are royalty-free. AVIF is supported by all Chromium browsers (Chrome 85 on) using content negotiation.  Microsoft Windows 10 supports AVIF from the 19H1 update. AVIF is backed...

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TL;DR: Watch this video to get the essential data in 34 seconds. Here’s what you are going to see: Aurora1 beats the venerable NVIDIA NVENC HEVC encoder that is built-in to the popular Tesla 4 by delivering the same quality or higher at exactly half the bitrate (5Mbps for 1080p60). In order to compare appropriately, Aurora1 was operated in its real-time mode as required for cloud gaming and live streaming services.Video engineers seeking to optimize the quality of video that they stream face many challenges. Everything from the codec standard selected to the choice of resolution and bitrate to the...

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AV1 For WebRTC – New Benchmarks

In part 1 of this article, we introduced the AV1 codec for Real-Time Communications (RTC) by comparing our Aurora1 AV1 encoder with x264 and libvpx-VP9 operating on the Snapdragon 845. In Part 2, we update the results by comparing our Aurora1 AV1 encoder with x264 and add OpenH264 and libaom-RT. Codec implementations and their performance, quality, and efficiency vary, still, there is nothing they can do to increase the number of coding tools available. An advanced codec will always provide higher compression efficiency and better operational modes than a legacy standard. As Chrome 90 Beta has fully integrated AV1 with WebRTC, many video conferencing platforms and applications are evaluating AV1...

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How To Deliver HDR-Like Video In An SDR Package

What is Pseudo HDR?  HDR, or High Dynamic Range video retains more detail in an image’s brightest and darkest portions than standard dynamic range (SDR). It also displays a broader gamut of colors and texture.   Some of the limitations of HDR are less about the footage itself and more about the infrastructure required to view it. For example, many devices still do not support HDR footage.  Add to that the higher bandwidth needed to deliver it and you have significantly limited who can watch HDR originated or produced content.  Visionular provides HDR-like quality video while keeping it in an SDR format. We refer...

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The Beauty Of Film Grain: Must You Lose It In The Encode?

“There’s a magic to the grain and the color quality that you get with film.” Judd Apatow When it comes to film grain, most of us fall into one camp or the other.  Either it’s a problem that needs to be removed because it makes for complex encodes and difficult digital delivery, or it is  THE ingredient that makes your footage look cinematic and, well, not digital. Blockbuster movies such as Creed, the latest Star Wars movies, Inception, and the latest James Bond, “No Time To Die” were all shot on film by legends including Tarantino, Nolan, Spielberg, and Fukunaga. Love or hate it,...

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fast AV1 encoding using visionular's aurora1 av1 encoder

Fast AV1 Encoding Is Finally Here

For years “codec complexity” ergo “high computational cost” has hung over the AV1 codec, causing some to hold off adopting the standard. Since video codec developers are continuously improving the performance of their codec implementations, this assumption doesn’t have to be true. The secret to breaking the operational cost barrier for AV1 is to use an encoder that was built from the ground up, to take full advantage of all of the incredible encoding tools AV1 has to offer. Through joint core RDO optimization and adaptive AI-based video processing, we pull all those levers and squeeze every ounce of quality out of...

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Aurora5 HEVC Test Results – May 2022

We’ve all had the experience of having friends or relatives tell us how smart their babies are – and how do we respond? We smile, we nod… but we don’t really believe it. We just attribute it to the understandable pride of being a parent. Well, here at Visionular, our baby is the Aurora5 HEVC encoder. And yes, we do talk about how great it is. (It really is!) So, realizing that singing the praises of our own product may be less than convincing, we wanted to find a more objective assessment of its performance — and we decided to put the...

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film restoration using Visionular's AuroraEnhancer technology

Using AI & ML to Enhance the Visual Appeal of Video

Stories are what bind us, and it has been this way throughout human history. Through stories, people share their society’s values, the knowledge of past generations and their dreams for the future. And there has never been a more powerful, immersive and beautiful way to tell those stories than through film. Enabling that film to look as good as it can is what drives our team of more than 50 video codec, algorithm, and signal processing engineers. The devices we stream video on today are unforgiving. Every flaw in the original source, bit of noise, and artifact, is under the microscope...

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