jp2.c File Reference

#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "imbuf.h"
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "IMB_allocimbuf.h"
#include "IMB_filetype.h"
#include "openjpeg.h"

Go to the source code of this file.

Classes
struct	img_folder
Defines
#define	JP2_FILEHEADER_SIZE   14
#define	UPSAMPLE_8_TO_12(_val)   ((_val<<4) | (_val & ((1<<4)-1)))
#define	UPSAMPLE_8_TO_16(_val)   ((_val<<8)+_val)
#define	DOWNSAMPLE_FLOAT_TO_8BIT(_val)   (_val)<=0.0f?0: ((_val)>=1.0f?255: (int)(255.0f*(_val)))
#define	DOWNSAMPLE_FLOAT_TO_12BIT(_val)   (_val)<=0.0f?0: ((_val)>=1.0f?4095: (int)(4095.0f*(_val)))
#define	DOWNSAMPLE_FLOAT_TO_16BIT(_val)   (_val)<=0.0f?0: ((_val)>=1.0f?65535: (int)(65535.0f*(_val)))
#define	CINEMA_24_CS   1302083
#define	CINEMA_48_CS   651041
#define	COMP_24_CS   1041666
#define	COMP_48_CS   520833
Typedefs
typedef struct img_folder	img_fol_t
Functions
static int	check_jp2 (unsigned char *mem)
int	imb_is_a_jp2 (unsigned char *buf)
static void	error_callback (const char *msg, void *client_data)
static void	warning_callback (const char *msg, void *client_data)
static void	info_callback (const char *msg, void *client_data)
struct ImBuf *	imb_jp2_decode (unsigned char *mem, size_t size, int flags)
static int	initialise_4K_poc (opj_poc_t *POC, int numres)
static void	cinema_parameters (opj_cparameters_t *parameters)
static void	cinema_setup_encoder (opj_cparameters_t *parameters, opj_image_t *image, img_fol_t *img_fol)
static opj_image_t *	ibuftoimage (ImBuf *ibuf, opj_cparameters_t *parameters)
int	imb_savejp2 (struct ImBuf *ibuf, const char *name, int flags)
Variables
static char	JP2_HEAD [] = {0x0, 0x0, 0x0, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A}

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Detailed Description

Definition in file jp2.c.

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Define Documentation

#define CINEMA_24_CS   1302083

Definition at line 305 of file jp2.c.

Referenced by cinema_setup_encoder().

#define CINEMA_48_CS   651041

Definition at line 306 of file jp2.c.

Referenced by cinema_setup_encoder().

#define COMP_24_CS   1041666

Definition at line 307 of file jp2.c.

Referenced by cinema_setup_encoder().

#define COMP_48_CS   520833

Definition at line 308 of file jp2.c.

Referenced by cinema_setup_encoder().

#define DOWNSAMPLE_FLOAT_TO_12BIT

(

_val

)

(_val)<=0.0f?0: ((_val)>=1.0f?4095: (int)(4095.0f*(_val)))

Definition at line 291 of file jp2.c.

Referenced by ibuftoimage().

#define DOWNSAMPLE_FLOAT_TO_16BIT

(

_val

)

(_val)<=0.0f?0: ((_val)>=1.0f?65535: (int)(65535.0f*(_val)))

Definition at line 292 of file jp2.c.

Referenced by ibuftoimage().

#define DOWNSAMPLE_FLOAT_TO_8BIT

(

_val

)

(_val)<=0.0f?0: ((_val)>=1.0f?255: (int)(255.0f*(_val)))

Definition at line 290 of file jp2.c.

Referenced by ibuftoimage().

#define JP2_FILEHEADER_SIZE   14

Definition at line 41 of file jp2.c.

#define UPSAMPLE_8_TO_12

(

_val

)

((_val<<4) | (_val & ((1<<4)-1)))

Definition at line 287 of file jp2.c.

Referenced by ibuftoimage().

#define UPSAMPLE_8_TO_16

(

_val

)

((_val<<8)+_val)

Definition at line 288 of file jp2.c.

Referenced by ibuftoimage().

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Typedef Documentation

typedef struct img_folder img_fol_t

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Function Documentation

static int check_jp2

(

unsigned char *

mem

)

[static]

Definition at line 59 of file jp2.c.

References JP2_HEAD.

Referenced by imb_is_a_jp2(), and imb_jp2_decode().

static void cinema_parameters

(

opj_cparameters_t *

parameters

)

[static]

Definition at line 330 of file jp2.c.

Referenced by ibuftoimage().

static void cinema_setup_encoder	(	opj_cparameters_t *	parameters,
		opj_image_t *	image,
		img_fol_t *	img_fol
	)		[static]

Definition at line 364 of file jp2.c.

References CINEMA_24_CS, CINEMA_48_CS, COMP_24_CS, COMP_48_CS, i, initialise_4K_poc(), and img_folder::rates.

Referenced by ibuftoimage().

static void error_callback	(	const char *	msg,
		void *	client_data
	)		[static]

sample error callback expecting a FILE* client object

Definition at line 73 of file jp2.c.

Referenced by imb_jp2_decode(), and imb_savejp2().

static opj_image_t* ibuftoimage	(	ImBuf *	ibuf,
		opj_cparameters_t *	parameters
	)		[static]

Definition at line 451 of file jp2.c.

References cinema_parameters(), cinema_setup_encoder(), copy_v3_v3(), DOWNSAMPLE_FLOAT_TO_12BIT, DOWNSAMPLE_FLOAT_TO_16BIT, DOWNSAMPLE_FLOAT_TO_8BIT, ImBuf::ftype, i, IB_PROFILE_LINEAR_RGB, if(), linearrgb_to_srgb_v3_v3(), MEM_freeN(), MEM_mallocN(), NULL, ImBuf::planes, ImBuf::profile, img_folder::rates, ImBuf::rect, ImBuf::rect_float, UPSAMPLE_8_TO_12, UPSAMPLE_8_TO_16, simple_enum_gen::w, ImBuf::x, and ImBuf::y.

Referenced by imb_savejp2().

int imb_is_a_jp2

(

unsigned char *

buf

)

Definition at line 64 of file jp2.c.

References check_jp2().

struct ImBuf* imb_jp2_decode	(	unsigned char *	mem,
		size_t	size,
		int	flags
	)		[read]

Definition at line 97 of file jp2.c.

References check_jp2(), error_callback(), ImBuf::ftype, i, IB_rect, IB_rectfloat, if(), IMB_allocImBuf(), IMB_rect_from_float(), ImBuf::index, info_callback(), NULL, ImBuf::planes, ImBuf::rect, ImBuf::rect_float, simple_enum_gen::w, and warning_callback().

int imb_savejp2	(	struct ImBuf *	ibuf,
		const char *	name,
		int	flags
	)

Definition at line 671 of file jp2.c.

References error_callback(), ImBuf::ftype, ibuftoimage(), info_callback(), NULL, and warning_callback().

static void info_callback	(	const char *	msg,
		void *	client_data
	)		[static]

sample debug callback expecting no client object

Definition at line 89 of file jp2.c.

Referenced by imb_jp2_decode(), and imb_savejp2().

static int initialise_4K_poc	(	opj_poc_t *	POC,
		int	numres
	)		[static]

Definition at line 311 of file jp2.c.

Referenced by cinema_setup_encoder().

static void warning_callback	(	const char *	msg,
		void *	client_data
	)		[static]

sample warning callback expecting a FILE* client object

Definition at line 81 of file jp2.c.

Referenced by imb_jp2_decode(), and imb_savejp2().

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Variable Documentation

char JP2_HEAD[] = {0x0, 0x0, 0x0, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A} [static]

Definition at line 43 of file jp2.c.

Referenced by check_jp2().