Handling EXIF MakerNote tags. More...

#include <libexif/exif-log.h>

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Typedefs
typedef struct _ExifMnoteData	ExifMnoteData
	Data found in the MakerNote tag. More...

Functions
void	exif_mnote_data_ref (ExifMnoteData *)

void	exif_mnote_data_unref (ExifMnoteData *)

void	exif_mnote_data_load (ExifMnoteData d, const unsigned char buf, unsigned int buf_size)
	Load the MakerNote data from a memory buffer. More...

void	exif_mnote_data_save (ExifMnoteData d, unsigned char buf, unsigned int buf_size)
	Save the raw MakerNote data into a memory buffer. More...

unsigned int	exif_mnote_data_count (ExifMnoteData *d)
	Return the number of tags in the MakerNote. More...

unsigned int	exif_mnote_data_get_id (ExifMnoteData *d, unsigned int n)
	Return the MakerNote tag number for the tag at the specified index within the MakerNote. More...

const char *	exif_mnote_data_get_name (ExifMnoteData *d, unsigned int n)
	Returns textual name of the given MakerNote tag. More...

const char *	exif_mnote_data_get_title (ExifMnoteData *d, unsigned int n)
	Returns textual title of the given MakerNote tag. More...

const char *	exif_mnote_data_get_description (ExifMnoteData *d, unsigned int n)
	Returns verbose textual description of the given MakerNote tag. More...

char *	exif_mnote_data_get_value (ExifMnoteData d, unsigned int n, char val, unsigned int maxlen)
	Return a textual representation of the value of the MakerNote entry. More...

void	exif_mnote_data_log (ExifMnoteData , ExifLog )

Detailed Description

Handling EXIF MakerNote tags.

Definition in file exif-mnote-data.h.

Typedef Documentation

◆ ExifMnoteData

typedef struct _ExifMnoteData ExifMnoteData

Data found in the MakerNote tag.

Definition at line 1 of file exif-mnote-data.h.

Function Documentation

◆ exif_mnote_data_count()

unsigned int exif_mnote_data_count ( ExifMnoteData * d )

Return the number of tags in the MakerNote.

Parameters

[in] d MakerNote data

Returns: number of tags, or 0 if no MakerNote or the type is not supported

Definition at line 110 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::count, and _ExifMnoteData::methods.

Referenced by dump_makernote(), mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_get_description()

const char* exif_mnote_data_get_description	(	ExifMnoteData *	d,
		unsigned int	n
	)

Returns verbose textual description of the given MakerNote tag.

Parameters

[in]	d	MakerNote data
[in]	n	index of the entry within the MakerNote data

Returns: textual description of the tag or NULL on error

Definition at line 138 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::get_description, and _ExifMnoteData::methods.

Referenced by mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_get_id()

unsigned int exif_mnote_data_get_id	(	ExifMnoteData *	d,
		unsigned int	n
	)

Return the MakerNote tag number for the tag at the specified index within the MakerNote.

Parameters

[in]	d	MakerNote data
[in]	n	index of the entry within the MakerNote data

Returns: MakerNote tag number

Definition at line 117 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::get_id, and _ExifMnoteData::methods.

Referenced by dump_makernote(), and mnote_null_test().

◆ exif_mnote_data_get_name()

const char* exif_mnote_data_get_name	(	ExifMnoteData *	d,
		unsigned int	n
	)

Returns textual name of the given MakerNote tag.

The name is a short, unique (within this type of MakerNote), non-localized text string containing only US-ASCII alphanumeric characters.

Parameters

[in]	d	MakerNote data
[in]	n	index of the entry within the MakerNote data

Returns: textual name of the tag or NULL on error

Definition at line 124 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::get_name, and _ExifMnoteData::methods.

Referenced by dump_makernote(), mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_get_title()

const char* exif_mnote_data_get_title	(	ExifMnoteData *	d,
		unsigned int	n
	)

Returns textual title of the given MakerNote tag.

The title is a short, localized textual description of the tag.

Parameters

[in]	d	MakerNote data
[in]	n	index of the entry within the MakerNote data

Returns: textual name of the tag or NULL on error

Definition at line 131 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::get_title, and _ExifMnoteData::methods.

Referenced by mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_get_value()

char* exif_mnote_data_get_value	(	ExifMnoteData *	d,
		unsigned int	n,
		char *	val,
		unsigned int	maxlen
	)

Return a textual representation of the value of the MakerNote entry.

Warning: The character set of the returned string may be in the encoding of the current locale or the native encoding of the camera.

Parameters

[in]	d	MakerNote data
[in]	n	index of the entry within the MakerNote data
[out]	val	buffer in which to store value
[in]	maxlen	length of the buffer val

Returns: val pointer, or NULL on error

Definition at line 145 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::get_value, and _ExifMnoteData::methods.

Referenced by dump_makernote(), mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_load()

void exif_mnote_data_load	(	ExifMnoteData *	d,
		const unsigned char *	buf,
		unsigned int	buf_size
	)

Load the MakerNote data from a memory buffer.

Parameters

[in]	d	MakerNote data
[in]	buf	pointer to raw MakerNote tag data
[in]	buf_size	number of bytes of data at buf

Definition at line 80 of file exif-mnote-data.c.

References _ExifMnoteDataMethods::load, and _ExifMnoteData::methods.

Referenced by interpret_maker_note(), and mnote_null_test().

◆ exif_mnote_data_log()

void exif_mnote_data_log	(	ExifMnoteData *	d,
		ExifLog *	log
	)

Definition at line 152 of file exif-mnote-data.c.

References exif_log_ref(), exif_log_unref(), and _ExifMnoteData::log.

Referenced by interpret_maker_note(), and mnote_null_test().

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◆ exif_mnote_data_ref()

void exif_mnote_data_ref ( ExifMnoteData * d )

Definition at line 49 of file exif-mnote-data.c.

References _ExifMnoteData::priv, and _ExifMnoteDataPriv::ref_count.

Referenced by mnote_null_test(), and test_exif_data().

◆ exif_mnote_data_save()

void exif_mnote_data_save	(	ExifMnoteData *	d,
		unsigned char **	buf,
		unsigned int *	buf_size
	)

Save the raw MakerNote data into a memory buffer.

The buffer is allocated by this function and must subsequently be freed by the caller.

Parameters

[in,out]	d	extract the data from this structure
[out]	buf	pointer to buffer pointer containing MakerNote data on return
[out]	buf_size	pointer to the size of the buffer

Definition at line 88 of file exif-mnote-data.c.

References _ExifMnoteData::methods, and _ExifMnoteDataMethods::save.

Referenced by exif_data_save_data_entry(), and mnote_null_test().