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-rw-r--r--src/apps/common/dng_writer.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/apps/common/dng_writer.cpp b/src/apps/common/dng_writer.cpp
index 58e35f3f..123f18a0 100644
--- a/src/apps/common/dng_writer.cpp
+++ b/src/apps/common/dng_writer.cpp
@@ -526,6 +526,23 @@ int DNGWriter::write(const char *filename, const Camera *camera,
TIFFWriteDirectory(tif);
+ /*
+ * Workaround for a bug introduced in libtiff version 4.5.1 and no fix
+ * released. In these versions the CFA* tags were missing in the field
+ * info.
+ * Introduced by: https://gitlab.com/libtiff/libtiff/-/commit/738e04099b13192bb1f654e74e9b5829313f3161
+ * Fixed by: https://gitlab.com/libtiff/libtiff/-/commit/49856998c3d82e65444b47bb4fb11b7830a0c2be
+ */
+ if (!TIFFFindField(tif, TIFFTAG_CFAREPEATPATTERNDIM, TIFF_ANY)) {
+ static const TIFFFieldInfo infos[] = {
+ { TIFFTAG_CFAREPEATPATTERNDIM, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
+ 1, 0, const_cast<char *>("CFARepeatPatternDim") },
+ { TIFFTAG_CFAPATTERN, -1, -1, TIFF_BYTE, FIELD_CUSTOM,
+ 1, 1, const_cast<char *>("CFAPattern") },
+ };
+ TIFFMergeFieldInfo(tif, infos, 2);
+ }
+
/* Create a new IFD for the RAW image. */
const uint16_t cfaRepeatPatternDim[] = { 2, 2 };
const uint8_t cfaPlaneColor[] = {