exif_enc_structure.h 5.08 KB
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/*****************************************************************************
 *
 * Filename:
 * ---------
 *   exif_enc_structure.h
 *
 * Project:
 * --------
 *   Maui
 *
 * Description:
 * ------------
 *   
 *
 * Author:
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 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 ****************************************************************************/
#ifndef __EXIF_ENC_STRUCTURE_V2_H__
#define __EXIF_ENC_STRUCTURE_V2_H__

#include "exif_enc_enum.h"
#include "simple_memory_manager.h"



typedef struct EXIF_TAG_FORMAT_T
{
    EXIF_TAG_FORMAT_ENUM format;
    unsigned char size;

} EXIF_TAG_FORMAT;



typedef struct EXIF_ENTRY_T
{
    unsigned short tag_id;                      ///< EXIF tag for this entry.

    EXIF_TAG_FORMAT_ENUM tag_format;            ///< Type of data in this entry.

    unsigned int tag_counts;                    ///< Number of elements in the array, if this is an array entry. Contains 1 for non-array data types.

    unsigned char *entry_data_addr;             ///< Pointer to the raw EXIF data for this entry.

    unsigned int entry_data_size;               ///< Number of bytes in the buffer at data. This must be no less than "exif_format_get_size(tag_format) * tag_counts".

} EXIF_ENTRY;



typedef struct EXIF_CONTENT_T
{
    EXIF_ENTRY *entry_array;                    ///< Entries array

    unsigned int entry_count;                   ///< Entries counts in this content. (Enabled entry number)

} EXIF_CONTENT;



// Represents the entire EXIF data found in an image
typedef struct EXIF_DATA_T
{
	EXIF_CONTENT ifd[EXIF_IFD_COUNT];           ///< Exif content data for each IFD

    STSMM exif_smm;                             ///< Simple memory manager structure for working buffer control.

	unsigned char *thumbnail_addr;              ///< Pointer to thumbnail image, or NULL if not available

	unsigned int thumbnail_size;                ///< Number of bytes in thumbnail image at data

    EXIF_BYTE_ORDER_ENUM byte_order;            ///< Byte order setting.

    EXIF_DATA_OPTION_ENUM option;               ///< Option. (Reserved now)

    unsigned char *dst_buffer_start_addr;       ///< Destination buffer start address.

    unsigned char *dst_buffer_ptr;              ///< Destination buffer pointer.

    unsigned int dst_buffer_left;               ///< Destination buffer size left.

} EXIF_DATA;



#endif  // End of #ifndef __EXIF_ENC_STRUCTURE_V2_H__