Create, destroy and search database for objects. More...

Classes
struct	lfDatabase
	A lens database object. More...

Enumerations
enum	{ LF_SEARCH_LOOSE = 1 , LF_SEARCH_SORT_AND_UNIQUIFY = 2 }
	Flags controlling the behavior of database searches. More...

Functions
lfDatabase *	lf_db_new (void)
	Create a new empty database object.

void	lf_db_destroy (lfDatabase *db)
	Destroy the database object.

lfError	lf_db_load (lfDatabase *db)

lfError	lf_db_load_file (lfDatabase db, const char filename)

cbool	lf_db_load_directory (lfDatabase db, const char dirname)

lfError	lf_db_load_data (lfDatabase db, const char errcontext, const char *data, size_t data_size)

lfError	lf_db_save_all (const lfDatabase db, const char filename)

lfError	lf_db_save_file (const lfDatabase db, const char filename, const lfMount const mounts, const lfCamera const cameras, const lfLens const lenses)

char *	lf_db_save (const lfMount const mounts, const lfCamera const cameras, const lfLens const lenses)

const lfCamera **	lf_db_find_cameras (const lfDatabase db, const char maker, const char *model)

const lfCamera **	lf_db_find_cameras_ext (const lfDatabase db, const char maker, const char *model, int sflags)

const lfCamera const	lf_db_get_cameras (const lfDatabase *db)

const lfLens **	lf_db_find_lenses_hd (const lfDatabase db, const lfCamera camera, const char maker, const char lens, int sflags)

const lfLens **	lf_db_find_lenses (const lfDatabase db, const lfLens lens, int sflags)

const lfLens const	lf_db_get_lenses (const lfDatabase *db)

const lfMount *	lf_db_find_mount (const lfDatabase db, const char mount)

const char *	lf_db_mount_name (const lfDatabase db, const char mount)

const lfMount const	lf_db_get_mounts (const lfDatabase *db)

Detailed Description

Create, destroy and search database for objects.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Flags controlling the behavior of database searches.

Enumerator

LF_SEARCH_LOOSE

This flag selects a looser search algorithm resulting in more results (still sorted by score).

If it is not present, all results where at least one of the input words is missing will be discarded.

LF_SEARCH_SORT_AND_UNIQUIFY

This flag makes Lensfun to sort the results by focal length, and remove all double lens names.

If a lens has entries for different crop factors/aspect ratios, the only best match is included into the result. This is meant to be used to create a list presented to the user to pick a lens. Or, to lookup a lens for which you know maker and model exactly, and to check whether the result list really contains only one element.

Function Documentation

◆ lf_db_destroy()

void lf_db_destroy ( lfDatabase * db )

Destroy the database object.

This is the only way to correctly destroy the database object.

Parameters

db	The database to destroy.

See also: lfDatabase::~lfDatabase

Examples: example.c.

References lf_db_destroy(), and LF_EXPORT.

Referenced by lf_db_destroy().

◆ lf_db_find_cameras()

const lfCamera ** lf_db_find_cameras	(	const lfDatabase *	db,
		const char *	maker,
		const char *	model )

See also: lfDatabase::FindCameras

References lf_db_find_cameras(), and LF_EXPORT.

Referenced by lf_db_find_cameras().

◆ lf_db_find_cameras_ext()

const lfCamera ** lf_db_find_cameras_ext	(	const lfDatabase *	db,
		const char *	maker,
		const char *	model,
		int	sflags )

See also: lfDatabase::FindCamerasExt

References lf_db_find_cameras_ext(), and LF_EXPORT.

Referenced by lf_db_find_cameras_ext().

◆ lf_db_find_lenses()

const lfLens ** lf_db_find_lenses	(	const lfDatabase *	db,
		const lfLens *	lens,
		int	sflags )

See also: lfDatabase::FindLenses(const lfCamera *, const lfLens *)

References lf_db_find_lenses(), and LF_EXPORT.

Referenced by lf_db_find_lenses().

◆ lf_db_find_lenses_hd()

const lfLens ** lf_db_find_lenses_hd	(	const lfDatabase *	db,
		const lfCamera *	camera,
		const char *	maker,
		const char *	lens,
		int	sflags )

See also: lfDatabase::FindLenses(const lfCamera *, const char *, const char *)

References lf_db_find_lenses_hd(), and LF_EXPORT.

Referenced by lf_db_find_lenses_hd().

◆ lf_db_find_mount()

const lfMount * lf_db_find_mount	(	const lfDatabase *	db,
		const char *	mount )

See also: lfDatabase::FindMount

References lf_db_find_mount(), and LF_EXPORT.

Referenced by lf_db_find_mount().

◆ lf_db_get_cameras()

const lfCamera *const * lf_db_get_cameras ( const lfDatabase * db )

See also: lfDatabase::GetCameras

Examples: example.c.

References lf_db_get_cameras(), and LF_EXPORT.

Referenced by lf_db_get_cameras().

◆ lf_db_get_lenses()

const lfLens *const * lf_db_get_lenses ( const lfDatabase * db )

See also: lfDatabase::GetLenses

Examples: example.c.

References lf_db_get_lenses(), and LF_EXPORT.

Referenced by lf_db_get_lenses().

◆ lf_db_get_mounts()

const lfMount *const * lf_db_get_mounts ( const lfDatabase * db )

See also: lfDatabase::GetMounts

Examples: example.c.

References lf_db_get_mounts(), and LF_EXPORT.

Referenced by lf_db_get_mounts().

◆ lf_db_load()

lfError lf_db_load ( lfDatabase * db )

See also: lfDatabase::Load()

Examples: example.c.

References lf_db_load(), and LF_EXPORT.

Referenced by lf_db_load().

◆ lf_db_load_data()

lfError lf_db_load_data	(	lfDatabase *	db,
		const char *	errcontext,
		const char *	data,
		size_t	data_size )

See also: lfDatabase::Load(const char *, const char *, size_t)

References lf_db_load_data(), and LF_EXPORT.

Referenced by lf_db_load_data().

◆ lf_db_load_directory()

cbool lf_db_load_directory	(	lfDatabase *	db,
		const char *	dirname )

See also: lfDatabase::LoadDirectory(const char *)

References cbool, lf_db_load_directory(), and LF_EXPORT.

Referenced by lf_db_load_directory().

◆ lf_db_load_file()

lfError lf_db_load_file	(	lfDatabase *	db,
		const char *	filename )

See also: lfDatabase::Load(const char *)

References lf_db_load_file(), and LF_EXPORT.

Referenced by lf_db_load_file().

◆ lf_db_mount_name()

const char * lf_db_mount_name	(	const lfDatabase *	db,
		const char *	mount )

See also: lfDatabase::MountName

References lf_db_mount_name(), and LF_EXPORT.

Referenced by lf_db_mount_name().

◆ lf_db_new()

lfDatabase * lf_db_new ( void )

Create a new empty database object.

Usually the application will want to do this at startup, after which it would be a good idea to call lf_db_load().

Returns: A new empty database object.

See also: lfDatabase::lfDatabase

Examples: example.c, and tfun.cpp.

References lf_db_new(), and LF_EXPORT.

Referenced by lf_db_new().

◆ lf_db_save()

char * lf_db_save	(	const lfMount const	mounts,
		const lfCamera const	cameras,
		const lfLens const	lenses )

See also: lfDatabase::Save(const lfMount *const *, const lfCamera *const *, const lfLens *const *)

References lf_db_save(), and LF_EXPORT.

Referenced by lf_db_save().

◆ lf_db_save_all()

lfError lf_db_save_all	(	const lfDatabase *	db,
		const char *	filename )

See also: lfDatabase::Save(const char *)

References lf_db_save_all(), and LF_EXPORT.

Referenced by lf_db_save_all().

◆ lf_db_save_file()

lfError lf_db_save_file	(	const lfDatabase *	db,
		const char *	filename,
		const lfMount const	mounts,
		const lfCamera const	cameras,
		const lfLens const	lenses )

See also: lfDatabase::Save(const char *, const lfMount *const *, const lfCamera *const *, const lfLens *const *)

Examples: example.c.

References lf_db_save_file(), and LF_EXPORT.

Referenced by lf_db_save_file().

Classes

Enumerations

Functions