MPEG-5 LCEVC
The hierarchical video format built for efficient delivery, scalable UHD, and AI-ready workflows.
What is LCEVC?
MPEG-5 Part 2 LCEVC is an ISO/IEC video compression standard from MPEG that works alongside any codec to improve efficiency and quality. It delivers up to 40% better compression and can cut transcoding costs and power use by up to 70%.
LCEVC’s hierarchical architecture enables efficient, scalable visual data delivery across broadcast, streaming, connected devices, and AI-driven workflows. From live sports and OTT services to mobile devices, smart TVs, surveillance systems, autonomous platforms, industrial inspection, and real-time analytics, LCEVC helps reduce bandwidth, processing, and compute demands while maintaining high visual quality.
MPEG-5 LCEVC uniquely improves performance of codecs, significantly boosting compression performance and computational efficiency. LCEVC is integrated with H.264/AVC, H.265/HEVC, H.266/VVC, and AV1.
Key stats
| Codec | Better Compression | Faster Encoder |
|---|---|---|
| LCEVC-AVC | 30–40% | 1.5–2× |
| LCEVC-HEVC | 25–40% | 2–3× |
| LCEVC-AV1 | 15–30% | 3× |
| LCEVC-VVC | 15–20% | 3× |
Architectural versatility
MPEG-5 Part 2 LCEVC is an international video compression standard published as ISO/IEC 23094-2. It enhances existing codecs including H.264/AVC, HEVC, AV1, AV2, and VVC, improving compression efficiency and reducing encoding complexity without replacing the base codec.
How LCEVC works
LCEVC encodes a lower-resolution base video, typically at one quarter of the target output resolution, using the chosen codec.
One or two lightweight enhancement layers are then added to carry residual information that corrects compression artefacts and restores fine detail, reconstructing the full-resolution output.
Why this architecture is more efficient
Because the base codec processes fewer pixels, encoding can run faster and use more efficient quality settings.
The enhancement layers use simple, highly parallelizable coding tools that add minimal compute overhead. Together, the base codec and enhancement layers deliver the same visual quality at a lower bitrate than the base codec alone at full resolution.
Designed for existing workflows
LCEVC integrates with standard video delivery workflows, including adaptive bitrate ladders, HLS, MPEG-DASH and CDN-based distribution.
Most integration takes place in the encode and decode stages, allowing the broader delivery infrastructure to remain unchanged.
Built for video and AI workflows
The result is a more efficient and scalable video architecture that supports broadcast, streaming and AI-driven applications, from premium UHD delivery and constrained mobile networks to machine vision and real-time analytics.
Benefits
Better compression efficiency at consistent perceptual quality
LCEVC reduces the bitrate needed to deliver the same visual quality. In MPEG formal verification tests, LCEVC achieved average bitrate savings of 46% for UHD and 28% for HD when enhancing H.264/AVC, 31% for UHD and 24% for HD when enhancing HEVC. All measured via ITU-R BT.500 subjective testing. When applied to SVT-AV1, LCEVC has demonstrated bitrate savings in the range of 15-20 at comparable quality using VMAF. These reductions translate directly to lower storage and CDN delivery costs.
Faster encoding and lower compute
Because LCEVC runs the base codec at a fraction of the output resolution, overall encoding compute drops substantially. With SVT-AV1, LCEVC can deliver equivalent visual quality while achieving up to 3× faster encoding compared to full-resolution AV1. This makes it practical to use slower, higher-quality encoder presets or to encode more streams on the same hardware, reducing infrastructure cost and energy consumption.
Codec agnostic, works with your currently deployed codec
LCEVC is engineered to operate alongside major codecs, including H.264, HEVC, VVC, AV1, and AV2, so you can improve efficiency. It protects device reach and infrastructure investment while giving you a clear path to improve quality per bit.
Flexible deployment options
Thanks to its low-complexity architecture, LCEVC encoding and decoding can be deployed in software or hardware, meeting performance needs across a wide range of diverse use cases. Its scalable two-layer structure, plus compatibility with existing containers and transport formats, simplifies integration across devices and services.
More efficient AI video analytics
Most AI video pipelines decode every frame at full resolution, then immediately downscale to the much smaller input that the model actually needs, wasting decode cycles, memory bandwidth, and power. LCEVC eliminates : its layered structure lets the pipeline decode only the lower-resolution base layer for inference, with higher-resolution detail available on demand.
In GPU-accelerated benchmarking with Intel, base-first LCEVC processing delivered:
- up to 3.4x higher throughput
- approximately 70% lower power consumption
- 80% lower memory-bandwidth demand, with no change to inference accuracy.
These gains apply wherever video feeds AI, from content moderation in streaming and social media, to real-time monitoring in smart cities, industrial automation, and defense. In each case, LCEVC allows systems to increase stream density and reduce per-stream compute cost without replacing models, hardware, or delivery infrastructure.
Licensing
The Consumer Device and Video Distribution Licensing Programs grant a convenient license to patents essential to the MPEG-5 LCEVC Low Complexity Enhancement Video Coding standard.
Use cases
AI-native live production workflows
LCEVC enables AI to become part of the live production pipeline by reducing bandwidth, latency, and compute overhead, helping real-time workflows scale more efficiently.
Deliver HD and UHD within existing broadcast spectrum
MPEG-5 LCEVC enables broadcasters to deliver HD and UHD from a single broadcast service without simulcasting separate channels or requiring additional broadcast spectrum.
Social media cloud transcoding
LCEVC improves cloud ABR transcoding efficiency for UGC and social video, reducing bitrate, storage, and CDN costs while maintaining quality.
Scalable video messaging
Deliver better-quality video messaging at lower bitrates with LCEVC’s lightweight, backward-compatible enhancement layer.
Offline transcoding of premium VOD media content
LCEVC enhances offline VOD transcoding workflows, enabling higher visual quality at lower storage and delivery costs without changing existing encoder infrastructure.
Premium live sports delivery
Discover how MPEG-5 LCEVC helps operators process and reprocess premium content libraries faster, reducing compute, storage and delivery costs.
Companies deploying our technology include
Key insights
External resources
Technical research & technical papers
LCEVC Resources
LCEVC player
Try a video player integration that enables apps and browsers to decode and play LCEVC streams across major platforms.
Download portal
Access V-Nova SDKs & NDKs, with guided setup, documentation links, and access to additional downloads as needed.
V-Nova platform
V-Nova’s Platform is a SaaS service for encoding VOD and Live streams with MPEG-5 LCEVC using x264 and x265 base codecs.
LCEVC docs
Our documentation hub explains how LCEVC integrates with existing encoders and decoders, its layered structure, and how to deploy it in live and on-demand workflows.
LCEVC.org
LCEVC.org is the official site for MPEG-5 Part 2 LCEVC, a low-complexity video enhancement standard that improves compression efficiency.
FAQs
What does “enhancement layer” mean in LCEVC?
The LCEVC enhancement layer efficiently encodes the residual data needed to correct base-codec artifacts and restore fine detail at full resolution.
How does backward compatibility work?
Backward compatibility comes from the fact that LCEVC works with any underlying base codec rather than replacing them. Devices or workflows that only understand the base codec can still decode the base layer, while LCEVC-aware decoders use the additional layer to recover the full benefit. That is why LCEVC can extend the life of existing devices, workflows, and deployed infrastructure instead of forcing a complete technology reset.
What changes in my headend or packaging chain?
Usually, very little. LCEVC is designed to fit into existing video workflows and is compatible with established containers and transport formats. In practice, the main change is enabling LCEVC in the encode and decode path, rather than redesigning the wider headend or packaging architecture.
What decoder implementations and players are supported?
The current support list includes playback environments across web, iOS, Android, and Apple TV, with integrations in Shaka Player, DASH.js, GStreamer, FFmpeg, ExoPlayer, and VideoLAN player.
Why is LCEVC better than AI upscaling in a smart TV?
AI upscaling in a TV works after delivery, attempting to infer missing detail at playback. LCEVC works in the encoding and delivery chain, carrying additional coded information so the decoder can reconstruct the final picture more accurately
How does LCEVC compare to scalable HEVC or scalable VVC?
Traditional scalable video coding (such as SVC or SHVC) ties the enhancement layer to the same codec as the base layer and typically adds significant complexity. LCEVC is codec-agnostic — it works with any base codec — and uses deliberately simple coding tools that add minimal compute overhead. It operates on decoded pixel data in the residual domain, making it fully independent of how the base codec works internally.
What encoder implementations are available?
LCEVC is available in both commercial and open-source encoding environments. This includes integrations with major encoder vendors such as Ateme, Harmonic, and MainConcept. Popular open source projects such as FFmpeg, GStreamer and Shaka Player also support LCEVC.
What multimedia frameworks have support for LCEVC?
Popular media processing frameworks such as FFmpeg and GStreamer support LCEVC.
How does LCEVC help AI video analytics?
In many analytics pipelines, full-resolution video is decoded and then resized to a smaller resolution for input to the model. LCEVC can improve that workflow by supporting base-first decoding, allowing inference to begin from a lower-complexity representation while preserving access to higher-resolution detail when required. In Intel-based benchmarking, this improved throughput and reduced power and memory-bandwidth demand.
What is LCEVC?
LCEVC (Low Complexity Enhancement Video Coding) is an international video coding standard, published as ISO/IEC 23094-2 and also known as MPEG-5 Part 2. It provides a standalone enhancement toolset that can be applied on top of any existing video codec to improve compression efficiency and reduce encoding and decoding complexity.
How does LCEVC improve compression?
LCEVC encodes the base video at a lower resolution using any standard codec and then adds up to two lightweight enhancement layers of residual data. These layers correct artifacts introduced by the base codec and restore fine detail to the full-resolution output. The combined bitstream is smaller than what the base codec alone would need to achieve the same visual quality at full resolution.
Does LCEVC replace existing codecs?
No. LCEVC is not a standalone codec. It enhances existing codecs, including H.264/AVC, HEVC, AV1, AV2, and VVC by adding low-complexity enhancement layers. The base codec’s bitstream remains fully decodable on its own, so organizations can adopt LCEVC without rebuilding their technology stack.
Does LCEVC eliminate the need for ABR ladders?
It serves a different purpose. Adaptive bitrate (ABR) ladders, multiple encoded versions at different resolutions and bitrates — are still needed to serve varying network conditions. What LCEVC does is reduce the bitrate of each rung on the ladder. That means less data to store and less data to deliver, which lower infrastructure costs across the entire ladder, resulting in more consumer receiving the higher quality profiles for longer.
How does LCEVC reduce encoding costs?
LCEVC runs the base codec at a lower resolution — typically a quarter of the target output. Because the codec processes fewer pixels, it encodes faster and can use higher-quality settings. The net effect is a significant reduction in total encoding cycles for equivalent output quality.
What devices support LCEVC decoding?
LCEVC decoding can be enabled in software, at the driver level in certain SOCs or directly in silicon, depending on the device capabilities. It’s deployed in-app on Android and iOS devices, on web browsers, on a number of set-top boxes and the first TV sets are appearing in the market in 2026. Devices that do not support LCEVC, simply play the underlying base codec stream, so backward compatibility is built in.
Where can LCEVC be used?
LCEVC is applicable wherever video is encoded and delivered: broadcast and television, OTT and live streaming, video-on-demand, social media, cloud gaming, video conferencing, smart cities, security, automotive and other connected systems. It has been adopted by Brazil’s DTV+ next-generation broadcast standard and is supported by a growing ecosystem of encoding and player vendors.
Can I see LCEVC in action?
Compare video with and without LCEVC and see the difference for yourself.
What does LCEVC’s inclusion in Brazil’s TV 3.0 standard mean?
MPEG-5 LCEVC is mandated as part of the DTV+ receiver specification alongside VVC. Every compliant television and set-top box must therefore be capable of decoding LCEVC, creating a nationwide installed base that broadcasters can use to deliver more efficient and higher-quality services.
