Sony Pixel Power calrec Sony

Smart Chunking: What is it and what does it mean for video encoding?

16/03/2023

Bitmovins Markus Hafellner talks to TVBEurope about the companys update to its VoD Encoding solution, and how it will create better visual quality for viewers

By Jenny Priestley

Published: March 16, 2023

Bitmovin's Markus Hafellner talks to TVBEurope about the company's update to its VoD Encoding solution, and how it will create better visual quality for viewers

target=_blank title=Share on LinkedIn class=share-linkedin>

Earlier this month, Bitmovin announced the introduction of Smart Chunking into its VoD Encoder, which it describes as an evolution of the split and stitch algorithm.

The original algorithm was created in response to problems with how long it takes to encode a file on a single machine. Split and stitch allows the encoding job to be split into multiple parallel encodings or segments, accelerating the entire process.

However, split and stitch can also lead to potential quality drops when using fixed GOPs and segments, degrading the overall visual quality for viewers, Bitmovin's senior product manager, Markus Hafellner tells TVBEurope.

Smart Chunking optimises chunk lengths and bitrate distribution, which positively impacts the visual quality throughout the whole asset and achieves this faster than before.

The introduction of Smart Chunking means that video streaming companies will be able to deliver their streams in the best possible quality, adds Hafellner.

The split and stitch algorithm was a significant advancement in video encoding because it made it possible to horizontally scale the compute intense workload, he continues. However, we saw an opportunity to build on it and further improve the visual quality of video content, and we have the data to back this up.

Currently, video quality is measured with VMAF, an objective quality metric created by Netflix, and it's one of the most widely used metrics in the video streaming industry to benchmark video quality. We used VMAF when benchmarking the image quality of a highly complex video asset processed with the standard split and stitch approach compared to Smart Chunking, explains Hafellner.

The results showed the lowest quality 1 per cent frames increased by 6 VMAF points (6 VMAF is exactly the noticeable difference for the human eye). There was also an impressive 22 VMAF points increase in the lowest quality 0.1 per cent frames, and the worst frame saw an increase of an astonishing 60 VMAF points.

For audiences, this means that the visual quality of their favourite content will look even better than before. Hafellner adds that Bitmovin's data shows a noticeable increase in visual quality that's perceptible to the human eye when Smart Chunking is used compared to the legacy split and stitch algorithm.

The technology has been developed for VoD services, but Bitmovin hasn't ruled out applying to live content. However, the shown quality gains would affect latency which then becomes a limiting factor for the optimisations, he adds.

Smart Chunking is paving the way for us to develop Per-Shot Encoding and make it available to our customers. Per-Shot Encoding aligns segment boundaries and thus I-frames with shot boundaries, which reduces the bitrate while maintaining the same visual quality.
LINK: https://www.tvbeurope.com/media-management/smart-chunking-what-is-it-a...
See more stories from tvb

Most recent headlines

05/01/2027

Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be demoed at CES 2026

Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...

06/09/2026

Dolby and MagentaTV Bring Fans Closer to the FIFA World Cup 2026 in Germany with Dolby Vision and Dolby Atmos

June 9 2026, 23:00 (PDT) Dolby and MagentaTV Bring Fans Closer to the FIFA Worl...

04/08/2026

Dalet Announces Commercial Availability of Dalia, Bringing Media-Aware Agentic AI to Enterprise Productions

Dalet, a leading technology and service provider for media-rich organizations, t...

07/07/2026

DAS Disputes Wiegels 3.0 EAS Limitations

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

LiveU to Showcase Q Era Innovations at 2026 IBC Show

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

LucidLink Unifies Adobe Frame.io, Enterprise Storage

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

ARRI Introduces ALEXA 35 Live Xtreme Camera

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Riedel and ARRI Bring Cinematic Live Production to the Eu...

Riedel Communications and ARRI played a key role in one of the most technically ambitious Eurovision Song Contest productions to date. For the first time in the...

07/07/2026

Berklee Valencia Honors Eric Whitacre at the 2026 Commencement Ceremony

Berklee Valencia Honors Eric Whitacre at the 2026 Commencement Ceremony The Grammy-winning composer was celebrated alongside this years cohort of masters degr...

07/07/2026

Disagreements Abound Over the Adequacy of C-Band Replacements

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Cameras Become More Connected to Production Workflows

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

NFL on TV: Time to Move the Regulatory Goal Posts?

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Building a Future-Ready Facility for Tomorrow's Broadcasters

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Rewriting the Control Room: How Broadcasters Are Going Remote

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Fincons Group appoints Andrea Fravega as Global BU Media...

The appointment will drive growth and innovation across the Media Business Unit Fincons Group, a leading IT business consultancy and systems integrator company...

07/07/2026

Big Blue Marble debuts next-gen ultra low latency MoQ str...

International broadcast and streaming expert Big Blue Marble has announced a multi-month Proof of Concept (PoC) for Media over QUIC (MoQ) during a major interna...

07/07/2026

Leader provides Test and Measurement for global broadcast...

Test & measurement innovator, Leader Electronics of Europe, is proud to announce that two of its leading products, the PHABRIX Qx rasterizer and LeaderPhabrix L...

07/07/2026

Clear-Com Powers Ross Production Services Mobile Producti...

Clear-Com announced that Ross Production Services (RPS), a leading provider of mobile production solutions for live events and broadcasts, has standardized on ...

07/07/2026

Q Era Innovations Take Center Stage for LiveU at IBC2026

LiveU redefined live newsgathering with the invention of cellular bonding. At IBC2026, Stand 7.C24, the company will show how that foundation is evolving into t...

07/07/2026

Camera to Cloud Meets Camera to Timeline LucidLink Unifi...

LucidLink, a leader in cloud-based file services for content creators, today announced an enhanced workflow integration between LucidLink and Adobe Frame.io tha...

07/07/2026

Comcast's Sky to Acquire ITV Media and Entertainment

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

Digital Alert Systems Details ATSC 3.0 EAS Capabilities to FCC

Share Copy link Facebook X Linkedin Bluesky Email...

07/07/2026

New appointments to Screen Australia board

New appointments to Screen Australia board 7 July 2026 The Albanese Labor Government has made new appointments to the Screen Australia board. Dr Tania Chamber...

07/07/2026

The right team. The right time.' How The Killings at Parrish Station stuck to their creative guns.

The right team. The right time.' How The Killings at Parrish Station stuck t...

07/07/2026

Patrick Kielty in The Late Late Chair until 2028

To Whom It Concerns RT today confirmed that Patrick Kielty is to extend his contract as host of The Late Late Show. Last season, the world's longest-runn...

07/07/2026

AI Innovators Adopt NVIDIA Vera - Why Max Single-Threaded CPU at Scale Matters

Max single-threaded CPUs at scale are a new category of CPUs built for the agentic AI era. Across the creation and deployment of an agentic system, the CPU is...

07/07/2026

July 06, 2026

Scripps Research scientists train the immune system to make antibodies against numerous HIV strains Preclinical findings mark progress toward a long-sought vacc...

06/07/2026

Inside OneSoccer's FIFA World Cup Ops: Canada's Soccer Network Goes Behind the Scenes for CanMNT's Historic Moment

Long-developed relationships and informal access, three production models, and c...

06/07/2026

Lumine Group Acquires Imagine Communications, Continues To Build Portfolio of Media Businesses

The deal follows Lumine's recent acquisition of Synamedia's video-networ...

06/07/2026

SVG All-Stars: Stuart Mitchell, Senior Coordinating Producer, Spectrum SportsNet LA

This former SportsCenter producer is shaping local-team studio coverage to surro...

06/07/2026

Case Study: How IMS Productions and FOX Sports Scaled Coverage of the 109th Indianapolis 500

IMS Productions and FOX Sports deployed more than 100 cameras, 32 onboard feeds,...

06/07/2026

Lumine Group Completes Acquisition of Synamedias Video Network Business

Lumine Group Inc. has announced the completion of its acquisition of the Video Network Business from Synamedia. The business will operate as a standalone compan...

06/07/2026

NASCAR and Motorsport Network Announce Content and Commercial Partnership

NASCAR has announced a content and commercial partnership with Motorsport Network, a motorsports and automotive media platform, to distribute NASCAR original co...

06/07/2026

Versant To Acquire Full Swing for Approximately $530 Million

Versant Media Group has announced a definitive agreement to acquire Full Swing, a sports technology company, from Bruin Capital and a group of minority investor...

06/07/2026

DAZN Secures Global Rights to 3ICE Hockey

DAZN has announced global broadcast rights to 3ICE, a professional hockey format featuring three skaters and a goalkeeper per side, with no power plays or offsi...

06/07/2026

Synth Anthology 5 From UVI

Bundle gains 100 new synths & more Synth Anthology 5 the largest and most feature-packed edition of UVI's hardware synth emulation bundle, bringing toge...

06/07/2026

MOTU 16A, 848 & 10pre gain Milan certification

Available now via free firmware update MOTU have just announced that three of their popular audio interfaces now boast official Milan Certification. The 16A...

06/07/2026

Rohde & Schwarz completes Hunter Preliminary Design Review for the Integrated Communications System

Rohde & Schwarz completes Hunter Preliminary Design Review for the Integrated Co...

06/07/2026

The R&S IMAGER from Rohde & Schwarz uses millimeter wave imaging to inspect the quality of packaged goods in real time

The R&S IMAGER from Rohde & Schwarz uses millimeter wave imaging to inspect the ...

06/07/2026

INVITATION FOR SOUTH AFRICAN FILMMAKERS TO SUBMIT FILMS FOR THE 99TH ANNUAL ACADEMY AWARDS (OSCARS) INTERNATIONAL FEATURE FILM CATEGORY

The National Film and Video Foundation (NFVF), an agency of the Department of Sp...

06/07/2026

Digital Domain Appoints Industry Veteran Patrick Davenport as Executive Vice President, Operations

Digital Domain Appoints Industry Veteran Patrick Davenport as Executive Vice Pre...

06/07/2026

Gravity Media USA appoints Brittney Boston as Head of Business Development

Gravity Media USA appoints Brittney Boston as Head of Business Development Brie Clayton July 6, 2026 0 Comments The strategic new appointment supports...

06/07/2026

Remote Editing Without Cloud Storage in Resolve

Remote Editing Without Cloud Storage in Resolve Michael Cioni July 6, 2026 0 Comments This is a step-by-step guide that demonstrates how to setup your...

06/07/2026

Automatic Caption Translation in Adobe Premiere Pro

Automatic Caption Translation in Adobe Premiere Pro Colin Smith July 6, 2026 0 Comments Here I showcase the innovative automatic caption translation f...

06/07/2026

Flavor's FirstEver Managing Director Neal Cohen Retires; Longstanding Executive Producer Kate Smith Rises to Lead the Studio

Flavor's First Ever Managing Director Neal Cohen Retires; Longstanding Execu...

06/07/2026

How Adam Rosenwach Pivoted from Music to Medtech Without Missing a Beat

How Adam Rosenwach Pivoted from Music to Medtech Without Missing a Beat What do the rehearsal room and the boardroom have in common? More than you might think...

06/07/2026

Zhongyi Optics unveils the Dreamy Zone T1 FF Cine Lens Series on Indiegogo with the first drop

Zhongyi Optics unveils the Dreamy Zone T1 FF Cine Lens Series on Indiegogo with ...

06/07/2026

NVIDIA and Hugging Face Bring New Models and Frameworks to LeRobot for the Open Robotics Community

Open source AI has shown how quickly developers can innovate when models, data a...

06/07/2026

Techtel debuts insyght: making ST 2110 media discovery easy

Techtel debuts insyght: making ST 2110 media discovery easy intellisphereinsyght2026 6 July Written By Suzanne Costello Sydney, Australia - 06 July 2026 T...