/*
 * Geeqie
 * (C) 2004 John Ellis
 * Copyright (C) 2008 - 2010 The Geeqie Team
 *
 * Author: Vladimir Nadvornik
 *
 * This software is released under the GNU General Public License (GNU GPL).
 * Please read the included file COPYING for more information.
 * This software comes with no warranty of any kind, use at your own risk!
 */

#ifndef JPEG_PARSER_H
#define JPEG_PARSER_H

#define JPEG_MARKER		0xFF
#define JPEG_MARKER_SOI		0xD8
#define JPEG_MARKER_EOI		0xD9
#define JPEG_MARKER_APP1	0xE1
#define JPEG_MARKER_APP2	0xE2

/* jpeg container format:
     all data markers start with 0XFF
     2 byte long file start and end markers: 0xFFD8(SOI) and 0XFFD9(EOI)
     4 byte long data segment markers in format: 0xFFTTSSSSNNN...
       FF:   1 byte standard marker identifier
       TT:   1 byte data type
       SSSS: 2 bytes in Motorola byte alignment for length of the data.
	     This value includes these 2 bytes in the count, making actual
	     length of NN... == SSSS - 2.
       NNN.: the data in this segment
 */

gboolean jpeg_segment_find(const guchar *data, guint size,
			    guchar app_marker, const gchar *magic, guint magic_len,
			    guint *seg_offset, guint *seg_length);


typedef struct _MPOData MPOData;
typedef struct _MPOEntry MPOEntry;

struct _MPOEntry {
	guint type_code;
	gboolean representative;
	gboolean dependent_child;
	gboolean dependent_parent;
	guint offset;
	guint length;
	guint dep1;
	guint dep2;

	guint MPFVersion;
	guint MPIndividualNum;  
	guint PanOrientation;   
	double PanOverlap_H;    
	double PanOverlap_V;    
	guint BaseViewpointNum; 
	double ConvergenceAngle;
	double BaselineLength;
	double VerticalDivergence;
	double AxisDistance_X;
	double AxisDistance_Y;
	double AxisDistance_Z;
	double YawAngle;
	double PitchAngle;
	double RollAngle;

};


struct _MPOData {
        guint mpo_offset;

	guint version;
	guint num_images;
	MPOEntry *images;
};

MPOData* jpeg_get_mpo_data(const guchar *data, guint size);
void jpeg_mpo_data_free(MPOData *mpo);

#endif