LCEVC cuts bitrate 30% to 55% without codec replacement
MPEG-5 LCEVC is presented as an enhancement layer for existing codecs (H.264, HEVC, AV1, VVC), offering bitrate reductions of 30-55% based on independent validation from MPEG, IEEE, and ACM studies. This approach allows for incremental codec adoption and efficiency gains without requiring wholesale infrastructure replacement, with Brazil's TV 3.0 (DTV+) national broadcast standard mandating LCEVC alongside VVC for 4K HDR delivery.
Key Takeaways
- MPEG tests in 2021 found 46% bitrate savings for H.264/AVC and 31% for HEVC on UHD content using ITU-R BT.500 DSIS methodology.
- Nine independent studies are cited as confirming LCEVC gains across codecs, content types, and viewing conditions.
- Brazil’s TV 3.0 decree, signed by President Lula on August 27, 2025, mandates VVC, MPEG-H audio, and MPEG-5 LCEVC.
- The article says TV 3.0 can deliver 4K HDR at under 10 Mbps per channel, versus about 14 Mbps for current HD services on private television spectrum.
- Globo used the full TV 3.0 stack during the Paris 2024 Olympics, with consumer devices from Hisense and set-top box silicon from Realtek and Amlogic.
Why It Matters
LCEVC matters because it offers bitrate and cost gains without forcing platforms to replace their base codec or rebuild the entire encoding stack. That changes the upgrade path for broadcasters and streaming operators: the article argues for incremental efficiency gains on H.264, HEVC, AV1, and VVC rather than waiting for full device migration. Brazil’s TV 3.0 gives the strongest proof point, since it ties LCEVC to a national standard and a live production workflow at Globo. What to watch next is whether the article’s cited deployment path — including MainConcept, Harmonic XOS, Ateme TITAN, Shaka Player, and GStreamer 1.26+ — shows up in more commercial rollouts.
Read full article at netint.biz
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