Home on Pretend to know what I am doing.

Integration of AV-Metrics Into rav1e, the AV1 Encoder

Mon, 30 Mar 2020 00:00:00 +0000

Hi,

Hope all are doing well, in this COVID-19 Outbreak and the lockdown, let us take a minute sometime to pray for the people who did pass away and who are under diagnosis with Corona,

So, this blog post aims to provide some technical overview of how introduction of v-frame, migration to v-frames for av-metrics and also integration of av-metrics into rav1e will help for rapid analysis. Rapid analysis like measurement of encoder’s complexity with metrics like PSNR, SSIM, A-PSNR, PSNR-HVS, MS-SSIM, CIEDE2000 etc. These are based on IETF NETVC testing draft.

rav1e and gains on ARM Devices

Wed, 27 Nov 2019 00:00:00 +0000

Hi,

It’s been a while I have written a blog about the work I am doing lately. So yeah, I have been working on rav1e, the AV1 Encoder written in rust as part of Project Iris. Currently, if we see, there are other Open-Source Encoders available like libaom from Google, SVT-AV1 from Intel and Netflix. Rav1e’s memory footprint makes it a good starting point for new-cases like Software Encoding in ARM devices, Real-time streaming, while libaom and SVT-AV1 are either too slow or resource-intensive. So it would be much easier to make rav1e fast and power-efficient due to the low-complexity functions.

Why you should care about AOM-Analyzer Tool !

Mon, 18 Feb 2019 00:00:00 +0000

Hi Folks,
It’s been a while I have written a blog, this is the right time I guess. So lately I am trying to do a kind of research with video encoding in power constrained devices as part of my undergrad thesis project. So I was going into more details about encoders in general. After that, I have also gone through the details about HEVC, AV1 and all.
We all know about very positive development advances in AV1 when we see with HEVC. So if you are not following anything in this digital video field, AV1 is next generation and new standard after HEVC.It could have like 40% better picture quality than HEVCcross-platform but as_of_now the main issue or the main disadvantage of av1 is the fact that it is very compute intensive, for solving this issue the much required thing would be having a nice software which does a full analysis of the video including the metadata.

GSoC 2018 Final Evaluation - VLC macOS interface redesign

Thu, 09 Aug 2018 00:00:00 +0000

Hi all,

This blog post contains all relevant work I did in summer with VideoLAN on “macOS interface redesign” project.

Title of the project

VLC macOS Interface redesign

Synopsis

The project aims to revamp VLC’s user interface for macOS and improve the user experience. It introduces the media center (aka. the libraryView), which provides users with a whole new way to browse and play video files on their computers. A new control system for video playback was also developed.

FAQs and Common Error while building Custom ROMs.

Mon, 05 Jun 2017 00:00:00 +0000

Disclaimer: All these FAQs and Solutions are taken from my knowledge and experience if anything wrong please point out so I can correct it.And feel free to add more FAQs and Errors from your side

FAQs

FAQ #1 : Easiest way to setup build environment ?

Their is a script will will make all the work easy by Akhil Narang XDA senior Member and great dev Steps to be followed:

How I build my first Custom ROM and how I became a Maintainer

Sun, 28 May 2017 00:00:00 +0000

Hello guys ,

I am back since I was lazy to type and my field of interest of mine got diverted, I was thinking that my life is not planned and going in a different way, for a few months I started thinking what should I really do, at first I thought to build custom ROM will be very hard and I cannot do that by myself. So I am a Custom Rom Maintainer and starting to be a developer. This post was in DRAFT for nearly 2 months.

How to Easily Unbrick your OnePlus 2 due to H20S Hardbrick

Tue, 29 Nov 2016 00:00:00 +0000

Hello everybody today i will show you how to UNBRICK YOUR ONEPLUS TWO id you got stuck in boot image/splash screen after flashng ot using or anything related to after effects of flashing H2os. So this is my story

First I flashed volte modem from h2Os on my device running xos7 the sim broken then I flashed old modem from bens the phone stuck on boot image can’t go to recovery nothing only fastboot then I flashed stock recovery after that tried to side load OOS got stuck in boot image after that flashed a zip oostoh2 one is there with that I successfully boootef then I realised that imei gone BT gone WiFi gone sim gone everything including baseband then I flashed h2os."

Rhinoshield Crash Guard For Oneplus Two Review

Sun, 11 Sep 2016 00:00:00 +0000

Hello Everybody today lets take a look at Evolutive Lab’s Rhinoshield Crash Guard bumper for Oneplus Two .The Design is neat and clean with little bit tough at moving alert slider rather than that its cool addition to your lovely device. Although the bumper adds a few mm to your phone yet its all the worth to your money

The design its look very sleek and stylish. The two tone color construction makes it more attractive. The hardened buttons make very easy and stiff to press buttons and increases the grip of the phone. The Headphone jack cutouts, Speaker cutouts, Charger cutouts and secondary noise cancellation microphone cutouts all are perfectly built.

Full Review: GadgetShieldz Skins for the OnePlus Two

Mon, 11 Jul 2016 00:00:00 +0000

Many people buy a new phone, slap a case on the phone and call it a day. However, those of us that don’t really like cases – mainly due to the added bulk – have other options now. Instead of just keeping our phone naked. Which looks good, but not after you’ve dropped it. The other option that I’m talking about here are the skins

Skins for your smartphone. dbrand is a company who makes all kinds of skins and has been around since 2011.For Indians its really hard to buy a dbrand skin so there is an alternative option to go for GADGETSHIELDZ SKINNOVA SKINS. Best part of this website is that it offers huge variety of customization for the Mobile which Indians uses.

How to Install Xposed Framework On Asus Zenfone/Fonepad/MemoPad/ANY ASUS Device!

Thu, 28 Apr 2016 00:00:00 +0000

Xposed Module x86

@rovo89 is the creator of the Xposed framework
Thanks to @shakalaca for his hardwork in porting Xposed to our x86 Lollipop Device
arun483, Senior Member Made this Tutorial

Hello Guys Today I am showing you how to install Xposed Module on any Asus Device without any issue just by clicking hassle free way. For me, expect this way, all otherß guided me towards bootloops.(90% will work).

Full Review: Audio Technica Sonic Fuel ATH-AX1iS Over the Ear Headphones

Sat, 09 Apr 2016 00:00:00 +0000

Hello Guys Last week i brought my first Audio Technica first headpone belive me it was worth spending it .!

I bought it from Amazon.in, it took 2days to get the product to my doorstep the delivery was quite fast the packing is awesome from both Amazon and Audio Technica.

Unboxing Video is also there, sorry for low clarity and the video is taken by me and unboxed my me so you can guess what it will be :) sorry for that next time I will be better :D.There will be few questions in your mind.Is it durable? Is it building quality OK? How is the Bass?How is it comforting? And Many more. Anyways, in simple words: ‘An Awesome Headset under 2000 Bucks ($30)’.

Notable trends in Smartphone technology of 2015

Thu, 10 Dec 2015 00:00:00 +0000

Hi,

I would like to say, few trends which are going to be mainstream in upcoming months and years from 2015.

1. 64-bit computing going mainstream

This year, 64-bit computing became a standard affair, even in mid-tier and budget segments. Right from first-time brands to the Sonys and Apples of the industry, every smartphone maker went for powering devices with 64-bit chipsets. Take for instance the Yu Yunique, which is powered by a 64-bit Snapdragon 410 processor, for a price of Rs. 5,999. Budget segments are no longer pushovers, and 64-bit processors made a crucial case for these devices

My First Experience With Windows 10

Sun, 02 Aug 2015 00:00:00 +0000

After about a few hours with the latest operating system, here’s what I noticed first about Windows 10

We have known almost everything about what’s going to be new with Windows 10 for some time now, and here it is for us to experience. We’ve spent a couple of hours fidgeting around with it, and here’s our thought after some time of usage:

Speed

Windows 10 has been really, really fast till now. Booting to the desktop takes 42 seconds on average, including entering a 10-character password. Running apps in the background, and there is no hint of a stutter. Everything from navigating through folders to launching an application and playing a new movie is so far a breeze, and Windows 10 seems to be the most responsive Windows till date. And last But Not the least the mutiple handing is top notch .

Mon, 01 Jan 0001 00:00:00 +0000

Research Team Website: Sigmedia.tv

Selected Publications

Vibhoothi Vibhoothi, "Automated Video Encoder Parameterisation from Streaming to Cinema," 2025. [Link]
Julien Zouein and Vibhoothi Vibhoothi and Anil Kokaram, "AV1 Motion Vector Fidelity and Application for Efficient Optical Flow," 2025. [Link] [arXiv]
Vibhoothi Vibhoothi and Julien Zouein and Shanker Shreejith and Jean-Baptiste Kempf and Anil Kokaram, "An Empirical Study of Reducing AV1 Decoder Complexity and Energy Consumption via Encoder Parameter Tuning," 2025. [Link] [arXiv]
Vibhoothi Vibhoothi and François Pitié and Anil Kokaram, "LiteVPNet: A Lightweight Network for Video Encoding Control in Quality-Critical Applications," 2025. [Link] [arXiv]
Xin Shu and Vibhoothi Vibhoothi and Anil Kokaram, "Predicting total time to compress a video corpus using online inference systems," 2024. [Link] [arXiv]
Anil Kokaram and Vibhoothi Vibhoothi and Julien Zouein and François Pitié and Christopher Nash and James Bentley and Philip Coulam-Jones, "Demystifying the use of Compression in Virtual Production," 2024. [Link] [arXiv]
Darren Ramsook and Anil Kokaram and Angeliki Katsenou and David Bull, "Comparative Analysis of Subjective Evaluations for Traditional and Neural-Based Video Enhancement Techniques," 2024. [Link]
Vibhoothi Vibhoothi, Julien Zouein, François Pitié, Anil Kokaram, "Using Single-Pass Look-Ahead in Modern Codecs for Optimized Transcoding Deployment," 2024. [Link]
Daniel Joseph Ringis and Vibhoothi Vibhoothi and François Pitié and Anil Kokaram, "The disparity between optimal and practical Lagrangian multiplier estimation in video encoders," 2023. [Link]
Vibhoothi Vibhoothi and Angeliki Katsenou and François Pitié and Katarina Domijan and Anil Kokaram, "Subjective assessment of the impact of a content adaptive optimiser for compressing 4K HDR content with AV1," 2023. [Link] [arXiv]
Vibhoothi Vibhoothi and Angeliki Katsenou and John Squires and Francois Pitie and Anil Kokaram, "Recommendations for verifying hdr subjective testing workflows," 2023. [Link] [arXiv]
Vibhoothi Vibhoothi and François Pitié and Angeliki Katsenou and Yeping Su and Balu Adsumilli and Anil Kokaram, "Comparison of HDR quality metrics in Per-Clip Lagrangian multiplier optimisation with AV1," 2023. [Link] [arXiv]
Vibhoothi Vibhoothi and Daniel Joseph Ringis and Xin Shu and François Pitié and Zsolt Lorincz and Philippe Brodeur and Anil Kokaram, "Filling the gaps in video transcoder deployment in the cloud," 2023. [Link] [arXiv]
Michael O’Byrne and Mark Sugrue and Vibhoothi Vibhoothi and Anil Kokaram, "Impact of Video Compression on the Performance of Object Detection Systems for Surveillance Applications," 2022. [Link]
Vibhoothi Vibhoothi and François Pitié and Anil Kokaram, "Frame-Type Sensitive RDO Control for Content-Adaptive Encoding," 2022. [Link] [arXiv]
Vibhoothi and François Pitié and Angeliki Katsenou and Daniel Joseph Ringis and Yeping Su and Neil Birkbeck and Jessie Lin and Balu Adsumilli and Anil Kokaram, "Direct optimisation of λ for HDR content adaptive transcoding in AV1," 2022. [Link] [arXiv]

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