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-rw-r--r--src/liblzma/lz/lz_encoder.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/liblzma/lz/lz_encoder.h b/src/liblzma/lz/lz_encoder.h
index 80cdcf63..8bd21322 100644
--- a/src/liblzma/lz/lz_encoder.h
+++ b/src/liblzma/lz/lz_encoder.h
@@ -161,9 +161,13 @@ typedef struct {
/// Maximum search depth
uint32_t depth;
- /// TODO: Comment
+ /// Initial dictionary for the match finder to search.
const uint8_t *preset_dict;
+ /// If the preset dictionary is NULL, this value is ignored.
+ /// Otherwise this member must indicate the preset dictionary's
+ /// buffer size. If this size is larger than dict_size, then only
+ /// the dict_size sized tail of the preset_dict will be used.
uint32_t preset_dict_size;
} lzma_lz_options;