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DNxHR

DNxHR is Avid's resolution-independent successor to DNxHD, an intra-frame video codec built to handle 2K, 4K, UHD, and beyond within Avid and third-party editing pipelines.

Extension

.mxf

Full name

Avid DNxHR (Digital Nonlinear Extensible High Resolution)

Introduced

September 2014 (announced at Avid Connect); 4K/UHD support added December 2014

Vendor

Avid Technology

What is inside the container

Like DNxHD, DNxHR is a codec typically wrapped in MXF (OP-Atom) or MOV, using Avid's "Resolution Independence" architecture so a single codec family scales from HD up through 4K and larger frame sizes rather than being locked to fixed resolutions. It spans quality tiers from DNxHR LB and SQ for offline/proxy work up through DNxHR HQ, HQX (10-bit), and 444 (12-bit, highest fidelity) for finishing.

How to open it

Windows/Mac Avid Media Composer natively encodes and decodes the full DNxHR range
Cross-platform editing DaVinci Resolve and Adobe Premiere Pro decode and encode DNxHR via the free Avid codec pack
Playback VLC and FFmpeg-based tools play DNxHR without Avid software installed
Transcoding/QC FFmpeg and Avid Media Encoder batch-transcode DNxHR to and from delivery or archival formats

For archives

DNxHR HQX or 444 makes a strong 4K/UHD archival mezzanine choice for Avid-based or cross-platform post-production pipelines, since its resolution independence avoids the fixed-frame-size limitation that made DNxHD unsuitable above HD. As with DNxHD, capture the specific DNxHR profile (LB/SQ/HQ/HQX/444) and bit depth in DAM metadata, since these materially affect both file size and downstream color-grading fidelity.

Avid announced DNxHR in September 2014 at its Avid Connect event, addressing a limitation that had become obvious as production moved to 4K and UHD: the original DNxHD codec was defined for fixed HD frame sizes and could not simply scale up. Avid built DNxHR around what it called a “Resolution Independence” architecture, and followed the announcement in December 2014 with a Media Composer update adding full 4K support at bitrates up to roughly 3,730 Mbit/s for the highest-quality profile.

The codec kept DNxHD’s core design principles — intra-frame compression for scrub-friendly editing, multiple quality tiers for different stages of a pipeline — while extending them across a quality ladder from DNxHR LB (low-bandwidth offline proxies) up to DNxHR 444 (12-bit, effectively uncompressed-grade finishing quality). That range lets a single codec family serve an entire production, from lightweight offline edit proxies to full-fidelity online masters, without switching codecs mid-pipeline.

For a DAM handling 4K and UHD production assets, DNxHR is now the more relevant of Avid’s two intra-frame codecs for anything beyond 1080p, and its resolution independence means a DAM shouldn’t assume file size or bitrate from resolution alone — a DNxHR LB 4K proxy can be smaller than an HD DNxHD HQ master. Recording the exact profile tier in metadata at ingest is what lets automated transcode rules pick the right target quality for proxies versus preservation copies.

Frequently asked

How is DNxHR different from DNxHD for a DAM cataloging video masters?

DNxHR is Avid's resolution-independent successor to DNxHD, built to handle 2K, 4K, UHD, and beyond, whereas DNxHD is fixed to HD frame sizes — so a DAM should route anything above 1080p to DNxHR rather than DNxHD.

Why can't file size be assumed from resolution alone for DNxHR assets?

DNxHR's resolution independence means a DNxHR LB 4K proxy can actually be smaller than an HD DNxHD HQ master, so a DAM shouldn't infer bitrate or file size from resolution alone.

What quality tiers exist within DNxHR, and how should a DAM use them?

DNxHR spans DNxHR LB and SQ for offline/proxy work up through DNxHR HQ, HQX (10-bit), and 444 (12-bit, highest fidelity) for finishing — recording the exact profile tier in metadata lets automated transcode rules pick the right target for proxies versus preservation copies.

What wrapper does DNxHR typically use, similar to DNxHD?

Like DNxHD, DNxHR is typically wrapped in MXF (OP-Atom) or MOV, using Avid's Resolution Independence architecture so a single codec family scales from HD up through 4K and larger frame sizes.

What archival tier of DNxHR is recommended for 4K/UHD masters?

DNxHR HQX or 444 makes a strong 4K/UHD archival mezzanine choice for Avid-based or cross-platform post-production pipelines, since its resolution independence avoids the fixed-frame-size limitation of DNxHD.

Can non-Avid tools work with DNxHR?

DaVinci Resolve and Adobe Premiere Pro decode and encode DNxHR via the free Avid codec pack, and VLC or FFmpeg-based tools play it without Avid software installed, similar to DNxHD's cross-platform support.

When was DNxHR introduced, and what triggered its development?

Avid announced DNxHR in September 2014 at Avid Connect, addressing the fact that the original DNxHD codec was defined for fixed HD frame sizes and could not scale up as production moved to 4K and UHD.

What compression approach does DNxHR share with DNxHD?

DNxHR keeps DNxHD's core design of intra-frame compression for scrub-friendly editing, extended across a wider quality ladder so a single codec family can serve an entire production from offline proxies to full-fidelity online masters.

Sources