HEVC vs AV1 Broadcast: Choosing the Right Codec

Table of Contents

1. Introduction
2. Where Does AV1 Pull Ahead On Bandwidth And Compression Efficiency?
3. Licensing And Royalty Model: HEVC’s Ongoing Liability Vs AV1’s Open Approach
4. Which Codec Has Better Hardware Decoder Support And Device Readiness?
5. Encoding Complexity And Infrastructure Cost For Live Broadcast
6. Practical Recommendation: When To Use Which And Where The Industry Is Heading
7. The Bottom Line
8. Frequently Asked Questions

Introduction

For every HEVC vs AV1 broadcast workflow, the core tension is simple: bandwidth bills keep rising while device support and licenses stay messy. Codec choice now lands directly on the CAPEX and OPEX line.

HEVC gives you stable hardware and live encoding, but licensing is fractured and not cheap. AV1 cuts bitrate hard, yet real-time encoders and legacy devices still lag.

This article walks through how the two codecs compare on compression efficiency, licensing, hardware decoder reach, and live encoding cost, then maps that to clear deployment guidance. You will see where AV1 already wins, where HEVC still owns the control room, and how a hybrid model fits.

Key Takeaways

The key trade-offs in the HEVC vs AV1 broadcast decision fall into a few repeatable patterns. Treat these as a quick checklist for any new channel, app, or platform design review. Each point shows where money or risk actually moves.

• AV1 usually reaches the same VMAF score as HEVC with about 30–50% less bitrate, based on tests shared by Netflix Tech Blog and AOMedia. For a 4K two‑hour title, that means roughly 12 Mbps and 10 GB with HEVC versus 8 Mbps and 7 GB with AV1. At 1080p, the gap shrinks but AV1 still holds more detail in dark, noisy, or high‑motion scenes at the same bitrate.

• HEVC licensing spans three patent pools, so operators deal with several contracts, audit rules, and fee types at once. AV1, under the Alliance for Open Media, removes per‑stream and per‑device royalties. For platforms pushing billions of viewing hours, that difference becomes a multi‑year strategic budget item, not a footnote.

• HEVC hardware decode exists on almost every recent smart TV, set‑top box, and mobile chipset used in broadcast today. AV1 hardware decode is strong on newer Samsung, LG, and Sony sets, plus modern Android and desktop GPUs, but it often does not exist on older satellite and IPTV boxes. That gap is why hybrid bitrate ladders matter.

• HEVC live encoders are standard gear at vendors like Harmonic, Ateme, and AWS Elemental, and reach sub‑one‑second glass‑to‑glass with tuned pipelines. AV1 software encoders still run about 5–10× slower than HEVC at similar quality in tests from Facebook Engineering, so live AV1 needs fresh GPU or ASIC investment.

• A practical plan uses AV1 for VOD and modern devices, with HEVC kept for live channels and legacy receivers. TV Tech Insight focuses on this hybrid pattern, covering bitrate ladders, manifest logic, and migration checks that help teams move without breaking existing broadcast paths.

As one OTT architect put it: “If you treat codec choice as a lab experiment instead of a cost line item, you are leaving money on the table.”

Where Does AV1 Pull Ahead On Bandwidth And Compression Efficiency?

Compression efficiency for HEVC vs AV1 broadcast delivery comes down to how many bits you spend for a given viewer score such as VMAF. At equal perceptual quality, AV1 usually needs meaningfully less bitrate than HEVC. That difference feeds straight into CDN egress and satellite transponder math.

Recent experiments from AOMedia and several encoder vendors show AV1 beating HEVC by roughly 30–50% in bitrate for the same VMAF or PSNR on many content types. For a two‑hour 4K HDR movie, a common rule of thumb looks like this:

Codec	Typical 4K Bitrate For OTT Movie	Approx File Size For 2 Hours	Compression Gain Vs H.264
H.264	~25 Mbps	~20 GB	Baseline
HEVC	~12 Mbps	~10 GB	About 50% better
AV1	~8 Mbps	~7 GB	About 30% better than HEVC

These numbers vary by content, ladder design, and encoder, but the shape holds. At 12 Mbps on HEVC, sport and action already look solid on big screens. AV1 can keep similar detail around 8 Mbps, which frees around one third of the bandwidth per stream.

According to Cisco, video still accounts for well over 70% of global consumer internet traffic, so even low double‑digit savings matter. For a platform like YouTube or Netflix pushing millions of concurrent 4K sessions, a 30% cut in average bitrate yields major CDN and peering savings over a year.

At 1080p and 2–5 Mbps, the visual gap between HEVC and AV1 tightens but does not vanish. AV1 tends to keep more texture in grass, crowds, and grain at the same bitrate, and avoids block noise in dark scenes. Above roughly 15 Mbps, both codecs look very clean, and the advantage shifts more toward capacity planning than pure picture gain.

For mobile or tablet ABR ladders around 720p and 1440p, especially under 3 Mbps, AV1 shows its biggest practical win. Those lower rungs often limit reach in congested networks, so a more efficient codec quietly improves start times, stall rates, and QoE scores without any UI change. TV Tech Insight often starts AV1 tests on these ladders first for that reason.

Rule of thumb from TV Tech Insight field notes: “Start AV1 where your ladder is starved for bits; you feel the savings and the quality bump at the same time.”

Licensing And Royalty Model: HEVC’s Ongoing Liability Vs AV1’s Open Approach

The licensing story behind HEVC vs AV1 broadcast deployments affects every budget review. HEVC sits behind three separate patent pools, while AV1 arrives from an alliance that promises use without royalties. That split drives many OTT roadmaps as much as pure compression.

HEVC rights sit with MPEG LA, HEVC Advance (now Access Advance), and Velos Media, each with its own terms and caps. A commercial HEVC workflow may owe fees per device, per subscriber, per title, or some mix, plus audit and reporting work. The exact amounts depend on contracts, yet the overhead is real for any mid‑scale OTT operator.

Analysts writing at Streaming Media have pointed out that this fragmentation slowed HEVC browser support and adoption in smaller services. Browser vendors did not want to pay unclear royalties for every active install. Many start‑ups simply stayed on H.264 despite the bandwidth hit, to avoid legal risk and accounting effort.

AV1 grew inside the Alliance for Open Media, whose members include Google, Amazon, Netflix, Microsoft, Intel, and Apple. The group set AV1 up as royalty‑free under its patent rules, with reference implementations shared in open‑source form. For a company planning billions of viewing hours, this removes an entire class of variable cost and legal work.

TV Tech Insight regularly sees this licensing angle become the tipping point when compression numbers alone feel too close. When AV1 already wins on bitrate, and also sidesteps three royalty pools, finance teams often push hard for AV1 at least on VOD where encode time hurts less.

Budget tip: “Run the HEVC royalty model side‑by‑side with AV1 bandwidth savings for a five‑year horizon; the codec choice often makes itself,” is a pattern we see in many TV Tech Insight cost studies.

Which Codec Has Better Hardware Decoder Support And Device Readiness?

Hardware decoder reach for HEVC and AV1 defines what you can safely ship to real households. HEVC enjoys a long head start and is effectively baked into most devices used in broadcast workflows today. AV1 has strong momentum on new gear but leaves many older set‑top boxes behind.

HEVC decode blocks ship in Apple A‑series chips, Qualcomm Snapdragon lines, modern MediaTek SoCs, and almost every smart TV platform from Samsung, LG, and Sony across the last decade. Professional decoders from vendors like Harmonic and Ateme also lean on HEVC for 4K satellite and IPTV feeds. For mixed device fleets, HEVC just plays.

AV1 hardware decode support now appears in 2020 and newer Samsung, LG, and Sony TVs, many Android 10 and later phones, and desktop GPUs such as NVIDIA RTX 4000 series, AMD RX 7000 series, and Intel Arc. Browsers including Chrome, Edge, Firefox, and recent Safari builds use hardware AV1 decode whenever the OS exposes it. According to device surveys shared by Bitmovin, AV1‑capable playback already covers a large share of recent premium devices, but not the full installed base.

A simple view of current decoder reach looks like this:

Device Category	HEVC Hardware Decode	AV1 Hardware Decode
Professional IRD / broadcast decoder	Widely available	Rare or early
Smart TVs pre‑2020	Common	Mostly none
Smart TVs 2020 and newer	Common	Common on major brands
Android phones 5.0 to 9	Common	Very rare
Android phones 10 and newer	Common	Growing, not universal
iOS / iPadOS	Native	Limited, early hardware only
Legacy DTH / IPTV STBs	Standard	Usually none

Software AV1 decode for 4K on CPUs without hardware help remains heavy. Even high‑end x86 clients can struggle, and many embedded ARM devices cannot keep up at all. That fact alone blocks a full AV1 swap in many broadcast systems, since millions of boxes in the field will never get new silicon.

For most operators, TV Tech Insight advises a codec‑aware ladder:

• Keep HEVC and even H.264 in the manifest for legacy devices.

• Add AV1 as the preferred codec for modern hardware that advertises support.

• Use player analytics to verify actual AV1 viewing share and error rates per device family.

This keeps reach while still banking savings on a large share of viewing hours.

A common saying among DTH engineers: “If you do not control the box on the wall, assume it only does HEVC.” That mindset still holds in 2026.

Encoding Complexity And Infrastructure Cost For Live Broadcast

Live encoding cost for HEVC vs AV1 broadcast channels still favors HEVC. HEVC hits real time on common ASICs and GPUs, while AV1 needs much more compute unless you invest in the latest hardware. That gap feeds directly into encoder spend and power use.

HEVC benefited from a decade of work by vendors such as Harmonic, AWS Elemental, Ateme, and NVIDIA. Hardware encoders reach 4Kp60 with low delay, tile and wavefront parallel modes keep latency tight, and cloud services on AWS and Google Cloud offer managed HEVC live profiles. HEVC fits cleanly into HLS, MPEG‑DASH, SRT, and RTSP pipelines used across cable, satellite, and IPTV.

By contrast, software AV1 encoders like libaom and rav1e still run several times slower than x265 for the same quality setting. Tests shared by Facebook Engineering and Netflix Tech Blog have shown 5–10× longer encode times in many profiles. That is fine for offline VOD encodes, but it breaks a real‑time live chain unless you overbuild compute.

Recent GPUs change the picture somewhat. NVIDIA RTX 4000 series, AMD RX 7000 series, and Intel Arc chips expose AV1 hardware encode blocks. These reduce latency and make 1080p and even 4K live AV1 more realistic in controlled setups. Still, few broadcast encoders match the broad, proven HEVC appliance market yet, so large operations treat AV1 live as a special path rather than the default.

Protocol support also matters when you map new codecs onto old wiring:

Protocol Or Workflow	HEVC Support	AV1 Support
HLS	Yes	Yes
MPEG‑DASH	Yes	Yes
CMAF	Yes	Yes
WebRTC	Limited	Strong, especially in browsers
RTSP	Yes	No native mapping yet
SRT	Yes	Yes via generic payload
Enhanced RTMP ingest	Yes	Yes on some platforms

For many broadcasters, the picture is clear. Keep HEVC as the main workhorse for live UHD and HD channels, especially where IRDs and contribution links already depend on it. Use AV1 first on VOD, pop‑up channels, or browser‑focused live formats like WebRTC where its cost and support profile match better. TV Tech Insight documentation often lays out reference topologies that follow this pattern.

Practical Recommendation: When To Use Which And Where The Industry Is Heading

A single winner in HEVC vs AV1 broadcast planning does not exist yet. The practical answer is a codec mix that fits workload type, device base, and budget horizon. In short, HEVC stays on point for live and legacy, while AV1 carries VOD and modern screens.

Use HEVC when live reliability and coverage matter more than extra savings, for example:

• Premium sports, news, and 24×7 channels that feed satellite, cable, DTH, or hotel TV systems.

• Regions where the majority of viewing still happens on older STBs or HEVC‑only smart TVs.

• Contribution and distribution links already engineered, tested, and monitored around HEVC IRDs.

If your IRDs and set‑top boxes already speak HEVC, ripping them out early often wastes CAPEX with little user‑facing gain.

Use AV1 when you run large on‑demand catalogs, app‑based services, or browser‑heavy viewing:

• OTT services where most hours flow through smart TVs, game consoles, and recent mobile devices.

• Workloads with deep catalogs where storage and CDN egress dominate cost.

• Browser‑centric playback where AV1 is already supported in Chrome, Edge, Firefox, and Safari on modern hardware.

Netflix, YouTube, and Meta have all reported meaningful CDN reductions after adding AV1 ladders for supported devices, as shared on their public engineering blogs. For a mid‑size OTT platform, even moving half of total hours to AV1 can trim bandwidth spend enough to fund new content or infrastructure.

A sensible hybrid blueprint usually looks like this:

• Live channels stay in HEVC end to end, maybe with some H.264 simulcast for the oldest gear.

• VOD pipelines encode both HEVC and AV1, with manifests that prefer AV1 on AV1‑capable TVs, consoles, and browsers.

• Analytics watch for playback errors, latency, and QoE per codec, so you can slowly expand AV1 coverage with data in hand.

TV Tech Insight often highlights this phased plan as the least risky starting point.

Looking forward, VVC or H.266 already appears in trials with promises of another rough 50% gain over HEVC, and AI‑guided encoding improves all codecs by tuning QP and tools scene by scene. According to research shared by Fraunhofer HHI, VVC can reach impressive efficiency but still lacks broad hardware. That means AV1 remains the main internet‑facing upgrade path over the next few years while teams monitor VVC progress and AI encoder features in x265, SVT‑HEVC, and SVT‑AV1.

Forward view: “Plan for AV1 now, keep HEVC healthy, and watch VVC rather than betting the farm on it,” is the posture most customers settle on.

The Bottom Line

For bandwidth and royalties, AV1 now stands ahead of HEVC for many OTT and app‑first services. For live broadcast stability and legacy device reach, HEVC still holds the stronger position. For most real platforms, the right answer blends both.

Conclusion

AV1 wins the long‑term bandwidth battle, especially once you factor royalty freedom on top of 30–50% bitrate savings. HEVC wins the near‑term operations battle, with mature live encoders and near‑universal decode across deployed boxes. The practical move is not a flip of a switch but a measured hybrid rollout.

Start by:

• Auditing how much of your audience can decode AV1 in hardware today.

• Mapping HEVC licensing costs against projected AV1 bandwidth savings.

• Identifying where your current encoders, packagers, and players already support AV1.

Those numbers set the real timeline, and TV Tech Insight offers the technical playbooks to turn them into a stepwise migration plan.

Frequently Asked Questions

Question: Is AV1 ready for live broadcast encoding in 2026?
AV1 is ready for some live workflows, but not as a straight drop‑in for every HEVC chain. With hardware encoders on NVIDIA RTX 4000, AMD RX 7000, and Intel Arc, 1080p and even 4K live AV1 become realistic for targeted use. Large linear lineups still lean on HEVC appliances for now, especially where broadcast‑grade monitoring and redundancy are mandatory.

Question: How significant are HEVC licensing costs for a mid‑size OTT platform?
HEVC fees spread across MPEG LA, HEVC Advance, and Velos Media, and can include per‑title and per‑device royalties plus audits. For a mid‑size service with millions of monthly viewing hours, these costs become a major recurring line item. AV1 removes that whole class of expense and legal overhead.

Question: Can older set‑top boxes play AV1 streams?
Most set‑top boxes shipped before roughly 2020 lack AV1 hardware decode blocks. Software decode of 4K AV1 on those chipsets is usually not practical and can fail even at 1080p. This limitation is a primary reason DTH and IPTV operators keep HEVC ladders as the main path and use AV1 only for newer devices.

Question: What VMAF score difference should I expect between HEVC and AV1 at the same bitrate?
At the same bitrate, AV1 often delivers a higher VMAF score than HEVC, or matches HEVC at around 30% lower bitrate. For 1080p content in the 2–5 Mbps range, the gain tends to be modest but visible. At lower bitrates and 4K, the advantage grows and yields clear improvements.

Question: What comes after AV1 — should I be thinking about VVC now?
VVC, also known as H.266, targets about 50% better compression than HEVC and early tests from groups like Fraunhofer HHI look strong. Hardware support and tools are still young though. For most operators, investing in AV1‑capable workflows now while watching VVC maturity is the sensible medium‑term plan.