jpeg.c File Reference

Encode images with the use of the JPEG encoding. More...

#include "jpeg.h"

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Data Structures
struct	JPEG_ENCODER_STRUCTURE

Macros
#define	JPEG_BLOCK_SIZE   64
#define	PUTBITS

Typedefs
typedef struct JPEG_ENCODER_STRUCTURE	JPEG_ENCODER_STRUCTURE

Functions
static unsigned char	svs_size_code (int w)
int	jpeg_create_svs_header (unsigned char *jpegbuf, int32_t size, int w)
static void	jpeg_initialization (JPEG_ENCODER_STRUCTURE *, uint32_t, uint32_t, uint32_t)
static uint8_t *	jpeg_write_markers (JPEG_ENCODER_STRUCTURE *, uint8_t *, uint32_t, uint32_t, uint32_t)
static void	jpeg_read_400_format (JPEG_ENCODER_STRUCTURE *, uint8_t *)
static void	jpeg_read_422_format (JPEG_ENCODER_STRUCTURE *, uint8_t *)
static uint8_t *	jpeg_encodeMCU (JPEG_ENCODER_STRUCTURE *, uint32_t, uint8_t *)
static void	jpeg_levelshift (int16_t *)
static void	jpeg_DCT (int16_t *)
static void	jpeg_quantization (JPEG_ENCODER_STRUCTURE *, int16_t *, uint16_t *)
static uint8_t *	jpeg_huffman (JPEG_ENCODER_STRUCTURE *, uint16_t, uint8_t *)
static uint8_t *	jpeg_close_bitstream (JPEG_ENCODER_STRUCTURE *, uint8_t *)
void	MakeTables (JPEG_ENCODER_STRUCTURE *jpeg_encoder_structure, int q)
void	jpeg_encode_image (struct image_t *in, struct image_t *out, uint32_t quality_factor, bool add_dri_header)
	Encode an YUV422 image.

Variables
static const uint16_t	luminance_dc_code_table []
static const uint16_t	luminance_dc_size_table []
static const uint16_t	chrominance_dc_code_table []
static const uint16_t	chrominance_dc_size_table []
static const uint16_t	luminance_ac_code_table []
static const uint16_t	luminance_ac_size_table []
static const uint16_t	chrominance_ac_code_table []
static const uint16_t	chrominance_ac_size_table []
static const uint8_t	bitsize []
static const uint8_t	markerdata []
static const uint8_t	zigzag_table []
void(*	read_format )(JPEG_ENCODER_STRUCTURE *jpeg_encoder_structure, uint8_t *input_ptr)
static const int	jpeg_luma_quantizer [64]
static const int	jpeg_chroma_quantizer [64]

Detailed Description

Encode images with the use of the JPEG encoding.

Definition in file jpeg.c.

---

Data Structure Documentation

JPEG_ENCODER_STRUCTURE

struct JPEG_ENCODER_STRUCTURE

Definition at line 66 of file jpeg.c.

Data Fields
uint16_t	bitindex
int16_t	CB[JPEG_BLOCK_SIZE]
uint16_t	cols
uint16_t	cols_in_right_mcus
uint8_t	Cqt[JPEG_BLOCK_SIZE]
int16_t	CR[JPEG_BLOCK_SIZE]
uint16_t	horizontal_mcus
uint16_t	ICqt[JPEG_BLOCK_SIZE]
uint16_t	ILqt[JPEG_BLOCK_SIZE]
uint16_t	incr
uint32_t	lcode
int16_t	ldc1
int16_t	ldc2
int16_t	ldc3
uint16_t	length_minus_mcu_width
uint16_t	length_minus_width
uint8_t	Lqt[JPEG_BLOCK_SIZE]
uint16_t	mcu_height
uint16_t	mcu_width
uint16_t	mcu_width_size
uint16_t	offset
uint16_t	rows
uint16_t	rows_in_bottom_mcus
int16_t	Temp[JPEG_BLOCK_SIZE]
uint16_t	vertical_mcus
int16_t	Y1[JPEG_BLOCK_SIZE]
int16_t	Y2[JPEG_BLOCK_SIZE]

Macro Definition Documentation

JPEG_BLOCK_SIZE

#define JPEG_BLOCK_SIZE   64

Definition at line 63 of file jpeg.c.

PUTBITS

#define PUTBITS

Value:

  {    \
    bits_in_next_word = (int16_t) (jpeg_encoder_structure->bitindex + numbits - 32);    \
    if (bits_in_next_word < 0)    \
    {    \
      jpeg_encoder_structure->lcode = (jpeg_encoder_structure->lcode << numbits) | data;    \
      jpeg_encoder_structure->bitindex += numbits;    \
    }    \
    else    \
    {    \
      jpeg_encoder_structure->lcode = (jpeg_encoder_structure->lcode << (32 - jpeg_encoder_structure->bitindex)) | (data >> bits_in_next_word);    \
      if ((*output_ptr++ = (uint8_t)(jpeg_encoder_structure->lcode >> 24)) == 0xff)    \
        *output_ptr++ = 0;    \
      if ((*output_ptr++ = (uint8_t)(jpeg_encoder_structure->lcode >> 16)) == 0xff)    \
        *output_ptr++ = 0;    \
      if ((*output_ptr++ = (uint8_t)(jpeg_encoder_structure->lcode >> 8)) == 0xff)    \
        *output_ptr++ = 0;    \
      if ((*output_ptr++ = (uint8_t) jpeg_encoder_structure->lcode) == 0xff)    \
        *output_ptr++ = 0;    \
        jpeg_encoder_structure->lcode = data;    \
        jpeg_encoder_structure->bitindex = bits_in_next_word;    \
    }    \
  }

Definition at line 599 of file jpeg.c.

Typedef Documentation

JPEG_ENCODER_STRUCTURE

typedef struct JPEG_ENCODER_STRUCTURE JPEG_ENCODER_STRUCTURE

Function Documentation

jpeg_close_bitstream()

static uint8_t * jpeg_close_bitstream ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint8_t *  output_ptr  )

static

Definition at line 722 of file jpeg.c.

References foo.

Referenced by jpeg_encode_image().

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jpeg_create_svs_header()

int jpeg_create_svs_header	(	unsigned char *	jpegbuf,
		int32_t	size,
		int	w
	)

Definition at line 44 of file jpeg.c.

References foo, p, s, and svs_size_code().

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jpeg_DCT()

static void jpeg_DCT ( int16_t *  data )

static

Definition at line 509 of file jpeg.c.

References c1, c2, c3, c6, and foo.

Referenced by jpeg_encodeMCU().

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jpeg_encode_image()

void jpeg_encode_image	(	struct image_t *	in,
		struct image_t *	out,
		uint32_t	quality_factor,
		bool	add_dri_header
	)

Encode an YUV422 image.

Parameters

[in]	*in	The input image
[out]	*out	The output JPEG image
[in]	quality_factor	Quality factor of the encoding (0-99)
[in]	add_dri_header	Add the DRI header (needed for full JPEG)

Definition at line 408 of file jpeg.c.

References image_t::buf, image_t::buf_size, foo, FOUR_TWO_TWO, FOUR_ZERO_ZERO, image_t::h, IMAGE_GRAYSCALE, IMAGE_YUV422, jpeg_close_bitstream(), jpeg_encodeMCU(), jpeg_initialization(), jpeg_write_markers(), MakeTables(), read_format, and image_t::w.

Referenced by save_shot_on_disk(), video_capture_save(), and viewvideo_function().

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jpeg_encodeMCU()

static uint8_t * jpeg_encodeMCU ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint32_t  image_format, uint8_t *  output_ptr  )

static

Definition at line 472 of file jpeg.c.

References foo, FOUR_TWO_TWO, jpeg_DCT(), jpeg_huffman(), jpeg_levelshift(), and jpeg_quantization().

Referenced by jpeg_encode_image().

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jpeg_huffman()

static uint8_t * jpeg_huffman ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint16_t  component, uint8_t *  output_ptr  )

static

Definition at line 623 of file jpeg.c.

References bitsize, chrominance_ac_code_table, chrominance_ac_size_table, chrominance_dc_code_table, chrominance_dc_size_table, foo, luminance_ac_code_table, luminance_ac_size_table, luminance_dc_code_table, luminance_dc_size_table, and PUTBITS.

Referenced by jpeg_encodeMCU().

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jpeg_initialization()

static void jpeg_initialization ( JPEG_ENCODER_STRUCTURE *  jpeg, uint32_t  image_format, uint32_t  image_width, uint32_t  image_height  )

static

Definition at line 288 of file jpeg.c.

References foo, FOUR_ZERO_ZERO, jpeg_read_400_format(), jpeg_read_422_format(), and read_format.

Referenced by jpeg_encode_image().

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jpeg_levelshift()

static void jpeg_levelshift ( int16_t *  data )

static

Definition at line 499 of file jpeg.c.

Referenced by jpeg_encodeMCU().

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jpeg_quantization()

static void jpeg_quantization ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, int16_t *  data, uint16_t *  quant_table_ptr  )

static

Definition at line 936 of file jpeg.c.

References foo, and zigzag_table.

Referenced by jpeg_encodeMCU().

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jpeg_read_400_format()

static void jpeg_read_400_format ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint8_t *  input_ptr  )

static

Definition at line 949 of file jpeg.c.

References foo.

Referenced by jpeg_initialization().

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jpeg_read_422_format()

static void jpeg_read_422_format ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint8_t *  input_ptr  )

static

Definition at line 979 of file jpeg.c.

References foo.

Referenced by jpeg_initialization().

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jpeg_write_markers()

static uint8_t * jpeg_write_markers ( JPEG_ENCODER_STRUCTURE *  jpeg_encoder_structure, uint8_t *  output_ptr, uint32_t  image_format, uint32_t  image_width, uint32_t  image_height  )

static

Definition at line 748 of file jpeg.c.

References foo, FOUR_TWO_TWO, FOUR_ZERO_ZERO, and markerdata.

Referenced by jpeg_encode_image().

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MakeTables()

void MakeTables	(	JPEG_ENCODER_STRUCTURE *	jpeg_encoder_structure,
		int	q
	)

Definition at line 369 of file jpeg.c.

References foo, jpeg_chroma_quantizer, and jpeg_luma_quantizer.

Referenced by jpeg_encode_image().

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svs_size_code()

static unsigned char svs_size_code ( int  w )

inlinestatic

Definition at line 23 of file jpeg.c.

Referenced by jpeg_create_svs_header().

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Variable Documentation

bitsize

const uint8_t bitsize[]

static

Definition at line 228 of file jpeg.c.

Referenced by jpeg_huffman().

chrominance_ac_code_table

const uint16_t chrominance_ac_code_table[]

static

Initial value:

= {
  0x0000,
  0x0001, 0x0004, 0x000A, 0x0018, 0x0019, 0x0038, 0x0078, 0x01F4, 0x03F6, 0x0FF4,
  0x000B, 0x0039, 0x00F6, 0x01F5, 0x07F6, 0x0FF5, 0xFF88, 0xFF89, 0xFF8A, 0xFF8B,
  0x001A, 0x00F7, 0x03F7, 0x0FF6, 0x7FC2, 0xFF8C, 0xFF8D, 0xFF8E, 0xFF8F, 0xFF90,
  0x001B, 0x00F8, 0x03F8, 0x0FF7, 0xFF91, 0xFF92, 0xFF93, 0xFF94, 0xFF95, 0xFF96,
  0x003A, 0x01F6, 0xFF97, 0xFF98, 0xFF99, 0xFF9A, 0xFF9B, 0xFF9C, 0xFF9D, 0xFF9E,
  0x003B, 0x03F9, 0xFF9F, 0xFFA0, 0xFFA1, 0xFFA2, 0xFFA3, 0xFFA4, 0xFFA5, 0xFFA6,
  0x0079, 0x07F7, 0xFFA7, 0xFFA8, 0xFFA9, 0xFFAA, 0xFFAB, 0xFFAC, 0xFFAD, 0xFFAE,
  0x007A, 0x07F8, 0xFFAF, 0xFFB0, 0xFFB1, 0xFFB2, 0xFFB3, 0xFFB4, 0xFFB5, 0xFFB6,
  0x00F9, 0xFFB7, 0xFFB8, 0xFFB9, 0xFFBA, 0xFFBB, 0xFFBC, 0xFFBD, 0xFFBE, 0xFFBF,
  0x01F7, 0xFFC0, 0xFFC1, 0xFFC2, 0xFFC3, 0xFFC4, 0xFFC5, 0xFFC6, 0xFFC7, 0xFFC8,
  0x01F8, 0xFFC9, 0xFFCA, 0xFFCB, 0xFFCC, 0xFFCD, 0xFFCE, 0xFFCF, 0xFFD0, 0xFFD1,
  0x01F9, 0xFFD2, 0xFFD3, 0xFFD4, 0xFFD5, 0xFFD6, 0xFFD7, 0xFFD8, 0xFFD9, 0xFFDA,
  0x01FA, 0xFFDB, 0xFFDC, 0xFFDD, 0xFFDE, 0xFFDF, 0xFFE0, 0xFFE1, 0xFFE2, 0xFFE3,
  0x07F9, 0xFFE4, 0xFFE5, 0xFFE6, 0xFFE7, 0xFFE8, 0xFFE9, 0xFFEA, 0xFFEb, 0xFFEC,
  0x3FE0, 0xFFED, 0xFFEE, 0xFFEF, 0xFFF0, 0xFFF1, 0xFFF2, 0xFFF3, 0xFFF4, 0xFFF5,
  0x7FC3, 0xFFF6, 0xFFF7, 0xFFF8, 0xFFF9, 0xFFFA, 0xFFFB, 0xFFFC, 0xFFFD, 0xFFFE,
  0x03FA
}

Definition at line 186 of file jpeg.c.

Referenced by jpeg_huffman().

chrominance_ac_size_table

const uint16_t chrominance_ac_size_table[]

static

Initial value:

= {
  0x0002,
  0x0002, 0x0003, 0x0004, 0x0005, 0x0005, 0x0006, 0x0007, 0x0009, 0x000A, 0x000C,
  0x0004, 0x0006, 0x0008, 0x0009, 0x000B, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0005, 0x0008, 0x000A, 0x000C, 0x000F, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0005, 0x0008, 0x000A, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0006, 0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0006, 0x000A, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0007, 0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0007, 0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0008, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000E, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000F, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000A
}

Definition at line 207 of file jpeg.c.

Referenced by jpeg_huffman().

chrominance_dc_code_table

const uint16_t chrominance_dc_code_table[]

static

Initial value:

= {
  0x0000, 0x0001, 0x0002, 0x0006, 0x000E, 0x001E,
  0x003E, 0x007E, 0x00FE, 0x01FE, 0x03FE, 0x07FE
}

Definition at line 134 of file jpeg.c.

Referenced by jpeg_huffman().

chrominance_dc_size_table

const uint16_t chrominance_dc_size_table[]

static

Initial value:

= {
  0x0002, 0x0002, 0x0002, 0x0003, 0x0004, 0x0005,
  0x0006, 0x0007, 0x0008, 0x0009, 0x000A, 0x000B
}

Definition at line 139 of file jpeg.c.

Referenced by jpeg_huffman().

jpeg_chroma_quantizer

const int jpeg_chroma_quantizer[64]

static

Initial value:

= {
  17, 18, 24, 47, 99, 99, 99, 99,
  18, 21, 26, 66, 99, 99, 99, 99,
  24, 26, 56, 99, 99, 99, 99, 99,
  47, 66, 99, 99, 99, 99, 99, 99,
  99, 99, 99, 99, 99, 99, 99, 99,
  99, 99, 99, 99, 99, 99, 99, 99,
  99, 99, 99, 99, 99, 99, 99, 99,
  99, 99, 99, 99, 99, 99, 99, 99
}

Definition at line 354 of file jpeg.c.

Referenced by MakeTables().

jpeg_luma_quantizer

const int jpeg_luma_quantizer[64]

static

Initial value:

= {
  16, 11, 10, 16, 24, 40, 51, 61,
  12, 12, 14, 19, 26, 58, 60, 55,
  14, 13, 16, 24, 40, 57, 69, 56,
  14, 17, 22, 29, 51, 87, 80, 62,
  18, 22, 37, 56, 68, 109, 103, 77,
  24, 35, 55, 64, 81, 104, 113, 92,
  49, 64, 78, 87, 103, 121, 120, 101,
  72, 92, 95, 98, 112, 100, 103, 99
}

Definition at line 340 of file jpeg.c.

Referenced by MakeTables().

luminance_ac_code_table

const uint16_t luminance_ac_code_table[]

static

Initial value:

= {
  0x000A,
  0x0000, 0x0001, 0x0004, 0x000B, 0x001A, 0x0078, 0x00F8, 0x03F6, 0xFF82, 0xFF83,
  0x000C, 0x001B, 0x0079, 0x01F6, 0x07F6, 0xFF84, 0xFF85, 0xFF86, 0xFF87, 0xFF88,
  0x001C, 0x00F9, 0x03F7, 0x0FF4, 0xFF89, 0xFF8A, 0xFF8b, 0xFF8C, 0xFF8D, 0xFF8E,
  0x003A, 0x01F7, 0x0FF5, 0xFF8F, 0xFF90, 0xFF91, 0xFF92, 0xFF93, 0xFF94, 0xFF95,
  0x003B, 0x03F8, 0xFF96, 0xFF97, 0xFF98, 0xFF99, 0xFF9A, 0xFF9B, 0xFF9C, 0xFF9D,
  0x007A, 0x07F7, 0xFF9E, 0xFF9F, 0xFFA0, 0xFFA1, 0xFFA2, 0xFFA3, 0xFFA4, 0xFFA5,
  0x007B, 0x0FF6, 0xFFA6, 0xFFA7, 0xFFA8, 0xFFA9, 0xFFAA, 0xFFAB, 0xFFAC, 0xFFAD,
  0x00FA, 0x0FF7, 0xFFAE, 0xFFAF, 0xFFB0, 0xFFB1, 0xFFB2, 0xFFB3, 0xFFB4, 0xFFB5,
  0x01F8, 0x7FC0, 0xFFB6, 0xFFB7, 0xFFB8, 0xFFB9, 0xFFBA, 0xFFBB, 0xFFBC, 0xFFBD,
  0x01F9, 0xFFBE, 0xFFBF, 0xFFC0, 0xFFC1, 0xFFC2, 0xFFC3, 0xFFC4, 0xFFC5, 0xFFC6,
  0x01FA, 0xFFC7, 0xFFC8, 0xFFC9, 0xFFCA, 0xFFCB, 0xFFCC, 0xFFCD, 0xFFCE, 0xFFCF,
  0x03F9, 0xFFD0, 0xFFD1, 0xFFD2, 0xFFD3, 0xFFD4, 0xFFD5, 0xFFD6, 0xFFD7, 0xFFD8,
  0x03FA, 0xFFD9, 0xFFDA, 0xFFDB, 0xFFDC, 0xFFDD, 0xFFDE, 0xFFDF, 0xFFE0, 0xFFE1,
  0x07F8, 0xFFE2, 0xFFE3, 0xFFE4, 0xFFE5, 0xFFE6, 0xFFE7, 0xFFE8, 0xFFE9, 0xFFEA,
  0xFFEB, 0xFFEC, 0xFFED, 0xFFEE, 0xFFEF, 0xFFF0, 0xFFF1, 0xFFF2, 0xFFF3, 0xFFF4,
  0xFFF5, 0xFFF6, 0xFFF7, 0xFFF8, 0xFFF9, 0xFFFA, 0xFFFB, 0xFFFC, 0xFFFD, 0xFFFE,
  0x07F9
}

Definition at line 144 of file jpeg.c.

Referenced by jpeg_huffman().

luminance_ac_size_table

const uint16_t luminance_ac_size_table[]

static

Initial value:

= {
  0x0004,
  0x0002, 0x0002, 0x0003, 0x0004, 0x0005, 0x0007, 0x0008, 0x000A, 0x0010, 0x0010,
  0x0004, 0x0005, 0x0007, 0x0009, 0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0005, 0x0008, 0x000A, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0006, 0x0009, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0006, 0x000A, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0007, 0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0007, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0008, 0x000C, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x000F, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0009, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000A, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000A, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000B, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
  0x000B
}

Definition at line 165 of file jpeg.c.

Referenced by jpeg_huffman().

luminance_dc_code_table

const uint16_t luminance_dc_code_table[]

static

Initial value:

= {
  0x0000, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006,
  0x000E, 0x001E, 0x003E, 0x007E, 0x00FE, 0x01FE
}

Definition at line 124 of file jpeg.c.

Referenced by jpeg_huffman().

luminance_dc_size_table

const uint16_t luminance_dc_size_table[]

static

Initial value:

= {
  0x0002, 0x0003, 0x0003, 0x0003, 0x0003, 0x0003,
  0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009
}

Definition at line 129 of file jpeg.c.

Referenced by jpeg_huffman().

markerdata

const uint8_t markerdata[]

static

Initial value:

= {
  0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
 
  0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
 
  0xFF, 0xC4, 0x00, 0x1F, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
 
  0xFF, 0xC4, 0x00, 0xB5, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
}

Definition at line 263 of file jpeg.c.

Referenced by jpeg_write_markers().

read_format

void(* read_format) (JPEG_ENCODER_STRUCTURE *jpeg_encoder_structure, uint8_t *input_ptr)	(	JPEG_ENCODER_STRUCTURE *	jpeg_encoder_structure,
		uint8_t *	input_ptr
	)

Definition at line 286 of file jpeg.c.

Referenced by jpeg_encode_image(), and jpeg_initialization().

zigzag_table

const uint8_t zigzag_table[]

static

Initial value:

= {
  0,  1,   5,  6, 14, 15, 27, 28,
  2,  4,   7, 13, 16, 26, 29, 42,
  3,  8,  12, 17, 25, 30, 41, 43,
  9,  11, 18, 24, 31, 40, 44, 53,
  10, 19, 23, 32, 39, 45, 52, 54,
  20, 22, 33, 38, 46, 51, 55, 60,
  21, 34, 37, 47, 50, 56, 59, 61,
  35, 36, 48, 49, 57, 58, 62, 63
}

Definition at line 274 of file jpeg.c.

Referenced by jpeg_quantization().