lensserious_db.h

Go to the documentation of this file.

/*
    LensSerious — reading the lens database.
 
    Copyright (C) 2026 Aurélien PIERRE.  License: LGPL-3.0-or-later.
*/
 
#ifndef LENSSERIOUS_DB_H
#define LENSSERIOUS_DB_H
 
#include "lensserious.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
size_t ls_db_normalize(const char *in, char *out, size_t out_size);
 
int ls_db_tokenize(const char *norm, char *out_tokens, int max, int stride);
 
unsigned ls_db_token_hash(const char *token);
 
size_t ls_db_token_digest(const char *norm, unsigned char *out, size_t out_size);
 
typedef struct ls_db_t ls_db_t;
 
typedef struct ls_camera_t
{
  long long id;
  float crop_factor;
  long long mount_id;
} ls_camera_t;
 
ls_db_t *ls_db_open(const char *path);
 
void ls_db_close(ls_db_t *db);
 
const char *ls_db_error(const ls_db_t *db);
 
int ls_db_schema_version(const ls_db_t *db);
 
int ls_db_meta(ls_db_t *db, const char *key, char *out, size_t out_size);
 
int ls_db_find_camera(ls_db_t *db, const char *maker, const char *model, ls_camera_t *out);
 
int ls_db_find_lens(ls_db_t *db, const char *maker, const char *model, float crop,
                    ls_lens_t *out);
 
typedef struct ls_db_match_t
{
  long long lens_id;
  float score;        
} ls_db_match_t;
 
int ls_db_match_lens(ls_db_t *db, const char *maker, const char *model, long long mount_id,
                     float crop, ls_db_match_t *out, int max);
 
int ls_db_lens_by_id(ls_db_t *db, long long lens_id, ls_lens_t *out);
 
int ls_db_lens_fits_mount(ls_db_t *db, long long lens_id, long long mount_id);
 
int ls_db_list_lenses(ls_db_t *db, long long *out_ids, int max);
 
int ls_db_lens_name(ls_db_t *db, long long lens_id, char *maker, size_t maker_size,
                    char *model, size_t model_size);
 
int ls_db_lens_range(ls_db_t *db, long long lens_id, float *min_focal, float *max_focal,
                     float *min_aperture, float *max_aperture);
 
int ls_db_lens_mounts(ls_db_t *db, long long lens_id, char *out, size_t out_size);
 
int ls_db_list_cameras(ls_db_t *db, long long *out_ids, int max);
 
int ls_db_camera_name(ls_db_t *db, long long camera_id, char *maker, size_t maker_size,
                      char *model, size_t model_size, char *variant, size_t variant_size);
 
int ls_db_camera_by_id(ls_db_t *db, long long camera_id, ls_camera_t *out);
 
int ls_db_mount_name(ls_db_t *db, long long mount_id, char *out, size_t out_size);
 
int ls_db_lenses_for_mount(ls_db_t *db, long long mount_id, long long *out_ids, int max);
 
#ifdef __cplusplus
}
#endif
 
#endif /* LENSSERIOUS_DB_H */