# HDR10 vs Dolby Vision vs HDR10+ vs HLG: HDR formats compared

> Compare HDR10, Dolby Vision, HDR10+, and HLG. Learn how static and dynamic metadata work, when formats look identical, and how your Mac renders them.

Published 2026-10-16 · HDR & picture · https://www.hazenstudio.com/maclc/blog/hdr-formats-compared/

## In short

- HDR10 is the universal open baseline with static metadata, while Dolby Vision and HDR10+ provide dynamic metadata scene by scene.
- HLG is a broadcast-oriented format designed without metadata, maintaining backward compatibility with older SDR television displays.
- Dynamic metadata only helps when a film is mastered brighter than the screen can go; when the whole film fits under the screen's peak, the formats look the same.
- Consumer streaming Dolby Vision uses 10-bit color, reserving true 12-bit reconstruction for Profile 7 on physical Ultra HD Blu-ray discs.
- MacLC evaluates your Mac screen's live headroom to choose the most power-efficient pipeline between native HDR10 and Dolby Vision.

The fundamental difference between HDR10 and Dolby Vision comes down to how each format handles tone-mapping metadata. HDR10 is an open, royalty-free standard that assigns a single static brightness limit to an entire movie, while Dolby Vision is a proprietary standard that delivers dynamic metadata to adjust brightness, contrast, and color frame by frame or scene by scene.

While Dolby Vision and its open rival HDR10+ deliver superior contrast on screens that cannot reach the film's mastering brightness, all HDR formats render essentially the identical picture when a display's peak luminance exceeds the content. Understanding how these formats communicate with display hardware reveals not only which format looks best on your screen, but also why your Mac selects specific decoding pipelines to balance visual fidelity with battery life.

## What is HDR10, and why is it the universal baseline?

HDR10 is the foundational standard of modern High Dynamic Range video. Established by the Consumer Technology Association in 2015, it is an open, royalty-free profile that serves as the mandatory baseline format for Ultra HD Blu-ray discs, 4K streaming platforms, and modern gaming consoles.

Under the hood, HDR10 combines several standardized video technologies:

* **Transfer Curve:** The Perceptual Quantizer (PQ), standardized as [SMPTE ST 2084](https://ieeexplore.ieee.org/document/7291452). Unlike legacy gamma curves that define brightness relative to an arbitrary monitor setting, PQ maps digital code values to absolute luminance levels spanning from 0.0001 nits up to 10,000 nits.
* **Color Space:** [Recommendation ITU-R BT.2020](https://www.itu.int/rec/R-REC-BT.2020), which covers 75.8 percent of the visible chromaticity spectrum.
* **Bit Depth:** 10-bit precision (1,024 values per color channel), unlocking a palette of 1.07 billion colors to eliminate visible gradient banding.
* **Chroma Subsampling:** 4:2:0 subsampling, halving horizontal and vertical color resolution to conserve distribution bandwidth.

Where HDR10 reveals its limitations is in its metadata architecture. HDR10 relies on static metadata standardized under SMPTE ST 2086 and CTA-861.3. This metadata includes two key values: Maximum Content Light Level (MaxCLL), which measures the single brightest pixel in the entire video, and Maximum Frame-Average Light Level (MaxFALL), which measures the brightest average frame.

Because these values are static, they apply globally to the entire movie. If a film contains ninety minutes of dimly lit dialogue inside a dark castle followed by a single three-second lightning strike reaching 2,000 nits, the MaxCLL for the entire file is tagged at 2,000 nits. A 500-nit television reading that static tag must compress its tone-mapping curve across the entire film to leave room for the lightning, causing the ninety minutes of castle dialogue to appear murky, dim, and difficult to see.

## What does Dolby Vision add with dynamic metadata?

Developed by Dolby Laboratories, Dolby Vision solves the static metadata compromise by introducing dynamic instructions through a specialized data layer called the Reference Processing Unit (RPU). Standardized in part under SMPTE ST 2094-10, Dolby Vision calculates tone-mapping curves and color trims shot by shot or frame by frame.

In that same dark castle scene, Dolby Vision informs the display that the dialogue scene has a peak luminance of only 150 nits. The screen can then render the actors' faces at full, natural brightness with rich shadow separation. When the lightning strikes an hour later, Dolby Vision updates the metadata for those exact frames, rolling off highlights smoothly to preserve detail in the clouds.

Dolby Vision is deployed through several distinct profiles tailored to specific distribution media:

* **Profile 5:** A single-layer format used mostly for streaming and digital stores. It uses a proprietary color space called IPTPQc2, which separates luminance (I) from chrominance (P and T) more efficiently than standard YCbCr. Profile 5 is not backward compatible with HDR10 displays; if played on an unsupported device, colors distort into purple and green tints.
* **Profile 7:** A dual-layer format used exclusively on physical Ultra HD Blu-ray discs. It pairs a standard 10-bit HDR10 base layer with an enhancement layer. In Minimal Enhancement Layer (MEL) discs, the secondary layer carries almost no picture data; the dynamic RPU metadata is what matters. In Full Enhancement Layer (FEL) discs, the enhancement layer carries residual video data that reconstructs a full 12-bit signal.
* **Profile 8.1:** A single-layer format in standard Rec. 2020 color space containing an HDR10-compliant base layer and dynamic RPU metadata. If a screen or player cannot process Dolby Vision, it simply ignores the metadata and plays the video as clean HDR10.
* **Profile 8.4:** A single-layer format that combines dynamic metadata with an HLG base curve. This is the format recorded natively by Apple iPhone 12 and newer models.

A persistent industry myth claims that streaming Dolby Vision delivers 12-bit color to your living room. In reality, all consumer streaming services distribute Dolby Vision in 10-bit (Profiles 5 and 8.1). End-to-end 12-bit playback is limited to Profile 7 FEL discs played on dedicated Blu-ray players connected to specialized display hardware. To learn more about profile compatibility, see our breakdown of [what is Dolby Vision](/maclc/blog/what-is-dolby-vision/).

## How do HDR10+ and HLG fit into the picture?

Beyond the rivalry between HDR10 and Dolby Vision, two other formats play significant roles in the modern HDR landscape: HDR10+ and Hybrid Log-Gamma (HLG).

### HDR10+: The open dynamic alternative
Established by a consortium founded by Samsung Electronics, Panasonic Corporation, and 20th Century Fox, HDR10+ is an open, royalty-free standard that adds dynamic metadata to HDR10. Standardized as [SMPTE ST 2094-40](https://ieeexplore.ieee.org/document/7740880), HDR10+ embeds scene-by-scene brightness statistics and a Bezier tone curve in the video stream's Supplemental Enhancement Information (SEI) messages.

Like Dolby Vision, HDR10+ adjusts contrast and peak luminance scene by scene. Because it carries no per-unit royalties—manufacturers pay only an annual administrative fee—it was embraced by Samsung, which notably excludes Dolby Vision from its television lineup. Amazon Prime Video is the best-known service using it, and Apple's recent devices support it too.

### HLG: Broadcast efficiency without metadata
Developed jointly by the British Broadcasting Corporation (BBC R&D) and NHK (Japan Broadcasting Corporation), Hybrid Log-Gamma was engineered to solve the logistical challenges of live television broadcast. Standardized in [Recommendation ITU-R BT.2100](https://www.itu.int/rec/R-REC-BT.2100) and ARIB STD-B67, HLG operates without any static or dynamic metadata.

HLG does this by splitting its curve in two. The lower half of the signal follows a gamma-like curve close to what SDR televisions expect; above it, a logarithmic curve stores the extended highlights.

Because HLG is scene-referred rather than tied to absolute nit targets like the PQ curve, a legacy SDR television can display an HLG broadcast with acceptable contrast, while an HDR display expands the logarithmic portion into bright specular highlights. HLG is used for live broadcasts by the BBC and NHK, among others, and it is the base of iPhone HDR video.

## HDR format comparison table

The following table summarizes the technical specifications, licensing structures, and distribution channels for each major HDR format:

| Specification | HDR10 | HDR10+ | Dolby Vision | HLG (Hybrid Log-Gamma) |
| :--- | :--- | :--- | :--- | :--- |
| **Standardization** | CTA-861.3 / ST 2084 | SMPTE ST 2094-40 | SMPTE ST 2094-10 (RPU) | ITU-R BT.2100 / ARIB STD-B67 |
| **Transfer Function** | Perceptual Quantizer (PQ) | Perceptual Quantizer (PQ) | Perceptual Quantizer (PQ / HLG) | Hybrid Log-Gamma (HLG) |
| **Metadata Type** | Static (MaxCLL / MaxFALL) | Dynamic (Scene-by-scene) | Dynamic (Frame-by-frame) | None (Metadata-free) |
| **Encoding Bit Depth** | 10-bit (1,024 levels) | 10-bit (up to 12-bit) | 10-bit (12-bit FEL on disc) | 10-bit (1,024 levels) |
| **Color Space** | ITU-R BT.2020 | ITU-R BT.2020 | Rec. 2020 / IPTPQc2 | ITU-R BT.2020 |
| **Licensing** | Open & Royalty-Free | Open (Annual admin fee) | Proprietary (Paid license) | Open & Royalty-Free |
| **Primary Sources** | UHD Blu-ray, Streaming, Gaming | Prime Video and others | Apple TV+, Netflix, Disney+, Disc | Live broadcasts, iPhone |
| **Television Support** | Universal (All HDR TVs) | Samsung, TCL, Hisense, Panasonic | LG, Sony, TCL, Hisense, Philips | Most HDR TVs |

## Which HDR format actually looks better on your screen?

A common belief among home theater enthusiasts is that Dolby Vision always produces a visibly superior picture compared to HDR10. The truth is more nuanced and depends entirely on the mathematical relationship between the film's mastering peak and your display's physical brightness capabilities.

When a movie is mastered on a 4,000-nit reference monitor (such as the Dolby Pulsar) and displayed on a mid-range television or computer monitor with a peak brightness of 400 to 600 nits, tone mapping is mandatory. In this situation, HDR10's static metadata can force a compromise, clipping highlights or dimming mid-tones. Dolby Vision and HDR10+ often look better here because their dynamic curves keep dialogue scenes bright and roll off highlights only when a scene needs it.

Now consider a film mastered to 1,000 nits, a common target, on an Apple Liquid Retina XDR display that can reach 1,600 nits. Because the display's ceiling is above the brightest light level in the film, no highlight compression or roll-off is needed.

In this scenario, every code value maps directly to its intended physical nit value on the PQ curve. HDR10, HDR10+, and Dolby Vision output the exact same luminance, contrast, and color pixel for pixel. Dynamic metadata becomes redundant because there are no out-of-range highlights that need dynamic adjustment.

## How does an Apple Silicon Mac handle these formats?

macOS manages HDR video through its Extended Dynamic Range (EDR) architecture: it treats SDR white as 1.0 in a floating-point compositing space and shows HDR highlights above 1.0 in the screen's available headroom.

Every Apple Silicon chip includes hardware decoders for 10-bit HEVC, with hardware AV1 decoding on M3 and newer. When decoding HDR10 or HLG video, media players can pass frames directly to macOS CoreAnimation layers using `CAEDRMetadata`. The operating system's display server composites the HDR frames directly onto the screen with minimal GPU overhead.

Dolby Vision requires additional processing. The player must demux the container, extract the RPU data from Supplemental Enhancement Information (SEI) NAL units, and interpret the dynamic polynomial curves. On an Apple Silicon laptop running on battery power, running complex custom tone-mapping shaders when the film already fits comfortably under the screen's peak brightness wastes energy without improving image quality.

MacLC, the player we make, includes a real-time format card that inspects incoming video files and tests the capabilities of the screen its window is currently on. It identifies whether a file carries HDR10, HDR10+, Dolby Vision (Profiles 5, 7, 8.1, or 8.4), or HLG, and transparently chooses the best rendering pipeline—preferring macOS's low-power native HDR10 pipeline when tone mapping is unnecessary.

*MacLC's format card, listing the HDR formats a film carries and the one chosen for this screen*

When you move MacLC's window from a 1,600-nit MacBook Pro screen to a dimmer external display, MacLC measures the new screen. If the film no longer fits under its peak, MacLC tone-maps it, using the film's Dolby Vision or HDR10+ metadata when it has it.

## What picture styles should you use for HDR video?

When tone mapping is necessary, how out-of-range highlights are handled depends on your viewing environment. MacLC provides three distinct picture styles tailored to different viewing conditions:

1. **Accurate:** reproduces every level of the master exactly up to 90 percent of your display's peak and folds the rest into a soft shoulder. Best for dark-room viewing on a bright screen.
2. **Balanced:** Based on the ITU-R BT.2390 standard, this mode uses a monotonic Hermite spline to smoothly distribute tone compression across highlights and upper midtones. It avoids clipping while preserving natural contrast in typical room lighting.
3. **Bright:** When watching movies in a brightly lit room or outdoors, the human eye's iris contracts, making standard HDR midtones appear dim. Bright mode lifts the picture by up to 1.6 times before the highlight roll-off, so dialogue scenes stay legible against reflections, at the cost of some highlight detail and battery.

To explore how these curves compress out-of-range luminance values mathematically, read our comprehensive explainer on [what is tone mapping](/maclc/blog/what-is-tone-mapping/). If you are wondering whether your hardware setup can take full advantage of these formats, consult our hardware guide on [does my Mac support HDR](/maclc/blog/does-my-mac-support-hdr/).

## Summary: Which format should you look for?

When building a high-quality video library or choosing streaming tiers, keep these practical rules in mind:

* For maximum universal compatibility across every media player, television, and computer, **HDR10** is the safe and dependable standard.
* For the highest possible picture fidelity on screens with limited peak brightness (under 800 nits), **Dolby Vision** and **HDR10+** offer clear visual benefits by adjusting contrast scene by scene.
* For live sports, broadcast television, and personal mobile video capture, **HLG** provides robust, metadata-free HDR that displays gracefully across both modern and legacy equipment.
* On an Apple Silicon Mac with a Liquid Retina XDR screen, HDR shines in every format. A player that uses macOS's own pipeline when the film fits, and dynamic metadata when it doesn't, gives you the best picture with the least battery. That is what [MacLC](/maclc/donate/) does, for free.

## Questions people ask

### What is the main difference between HDR10 and Dolby Vision?

HDR10 uses static metadata that sets a single brightness ceiling for an entire film, whereas Dolby Vision uses dynamic metadata to adjust tone mapping frame by frame or scene by scene.

### Which looks better: HDR10 or Dolby Vision?

Dolby Vision can look better on displays that can't reach the film's mastering peak, because its scene-by-scene metadata keeps dark scenes from being dimmed for the sake of the brightest one. When the screen is brighter than the film's peak, both look the same.

### What is HLG and how does it compare to HDR10?

Hybrid Log-Gamma (HLG) is a metadata-free format developed for live television broadcast and used in iPhone video recording. It uses standard gamma in dark regions and a logarithmic curve in highlights, unlike HDR10's absolute PQ curve.

### Is Dolby Vision better than HDR10+?

Both deliver dynamic scene-by-scene tone mapping. Dolby Vision has broader industry adoption across streaming services and physical discs, whereas HDR10+ is an open, royalty-free standard supported by Samsung and Amazon Prime Video.

### Does my Mac support Dolby Vision and HDR10+?

Apple Silicon Macs decode HDR video in hardware and show it with Extended Dynamic Range (EDR) on HDR-capable screens. Apple's own apps handle HDR10, HLG and streaming Dolby Vision. For files, a player like MacLC plays HDR10, HDR10+, HLG and Dolby Vision profiles 5, 7 (base layer and metadata), 8.1 and 8.4.

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