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ffmpeg.wasm-core
Commit ad194874 authored by Michael Niedermayer's avatar Michael Niedermayer
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j2k.h: Merges various cosmetics & unused defines 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent da906617
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Showing with 61 additions and 52 deletions
libavcodec/j2k.h
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......@@ -33,32 +33,32 @@
#include "j2k_dwt.h"
enum Jpeg2000Markers{
JPEG2000_SOC = 0xff4f, ///< start of codestream
JPEG2000_SIZ = 0xff51, ///< image and tile size
JPEG2000_COD, ///< coding style default
JPEG2000_COC, ///< coding style component
JPEG2000_TLM = 0xff55, ///< packed packet headers, tile-part header
JPEG2000_PLM = 0xff57, ///< tile-part lengths
JPEG2000_PLT, ///< packet length, main header
JPEG2000_QCD = 0xff5c, ///< quantization default
JPEG2000_QCC, ///< quantization component
JPEG2000_RGN, ///< region of interest
JPEG2000_POC, ///< progression order change
JPEG2000_PPM, ///< packet length, tile-part header
JPEG2000_PPT, ///< packed packet headers, main header
JPEG2000_CRG = 0xff63, ///< component registration
JPEG2000_COM, ///< comment
JPEG2000_SOT = 0xff90, ///< start of tile-part
JPEG2000_SOP, ///< start of packet
JPEG2000_EPH, ///< end of packet header
JPEG2000_SOD, ///< start of data
JPEG2000_EOC = 0xffd9, ///< end of codestream
JPEG2000_SOC = 0xff4f, // start of codestream
JPEG2000_SIZ = 0xff51, // image and tile size
JPEG2000_COD, // coding style default
JPEG2000_COC, // coding style component
JPEG2000_TLM = 0xff55, // packed packet headers, tile-part header
JPEG2000_PLM = 0xff57, // tile-part lengths
JPEG2000_PLT, // packet length, main header
JPEG2000_QCD = 0xff5c, // quantization default
JPEG2000_QCC, // quantization component
JPEG2000_RGN, // region of interest
JPEG2000_POC, // progression order change
JPEG2000_PPM, // packet length, tile-part header
JPEG2000_PPT, // packed packet headers, main header
JPEG2000_CRG = 0xff63, // component registration
JPEG2000_COM, // comment
JPEG2000_SOT = 0xff90, // start of tile-part
JPEG2000_SOP, // start of packet
JPEG2000_EPH, // end of packet header
JPEG2000_SOD, // start of data
JPEG2000_EOC = 0xffd9, // end of codestream
};
enum Jpeg2000Quantsty{ ///< quantization style
JPEG2000_QSTY_NONE, ///< no quantization
JPEG2000_QSTY_SI, ///< scalar derived
JPEG2000_QSTY_SE ///< scalar expoounded
enum Jpeg2000Quantsty{ // quantization style
JPEG2000_QSTY_NONE, // no quantization
JPEG2000_QSTY_SI, // scalar derived
JPEG2000_QSTY_SE // scalar expounded
};
#define JPEG2000_MAX_CBLKW 64
......@@ -67,7 +67,7 @@ enum Jpeg2000Quantsty{ ///< quantization style
#define JPEG2000_MAX_RESLEVELS 33
// T1 flags
// flags determining significance of neighbour coefficients
// flags determining significance of neighbor coefficients
#define JPEG2000_T1_SIG_N 0x0001
#define JPEG2000_T1_SIG_E 0x0002
#define JPEG2000_T1_SIG_W 0x0004
......@@ -76,9 +76,11 @@ enum Jpeg2000Quantsty{ ///< quantization style
#define JPEG2000_T1_SIG_NW 0x0020
#define JPEG2000_T1_SIG_SE 0x0040
#define JPEG2000_T1_SIG_SW 0x0080
#define JPEG2000_T1_SIG_NB (JPEG2000_T1_SIG_N | JPEG2000_T1_SIG_E | JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_W \
|JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW | JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)
// flags determining sign bit of neighbour coefficients
#define JPEG2000_T1_SIG_NB (JPEG2000_T1_SIG_N | JPEG2000_T1_SIG_E | \
JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_W | \
JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW | \
JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)
// flags determining sign bit of neighbor coefficients
#define JPEG2000_T1_SGN_N 0x0100
#define JPEG2000_T1_SGN_S 0x0200
#define JPEG2000_T1_SGN_W 0x0400
......@@ -103,7 +105,14 @@ enum Jpeg2000Quantsty{ ///< quantization style
#define JPEG2000_CSTY_SOP 0x02 // SOP marker present
#define JPEG2000_CSTY_EPH 0x04 // EPH marker present
typedef struct {
// Progression orders
#define JPEG2000_PGOD_LRCP 0x00 // Layer-resolution level-component-position progression
#define JPEG2000_PGOD_RLCP 0x01 // Resolution level-layer-component-position progression
#define JPEG2000_PGOD_RPCL 0x02 // Resolution level-position-component-layer progression
#define JPEG2000_PGOD_PCRL 0x03 // Position-component-resolution level-layer progression
#define JPEG2000_PGOD_CPRL 0x04 // Component-position-resolution level-layer progression
typedef struct Jpeg2000T1Context {
int data[JPEG2000_MAX_CBLKW][JPEG2000_MAX_CBLKH];
int flags[JPEG2000_MAX_CBLKW+2][JPEG2000_MAX_CBLKH+2];
MqcState mqc;
......@@ -131,21 +140,21 @@ typedef struct Jpeg2000CodingStyle {
uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]; // TODO: initialize prec_size array with 0?
} Jpeg2000CodingStyle;
typedef struct {
uint8_t expn[32 * 3]; ///< quantization exponent
uint16_t mant[32 * 3]; ///< quantization mantissa
uint8_t quantsty; ///< quantization style
uint8_t nguardbits; ///< number of guard bits
typedef struct Jpeg2000QuantStyle {
uint8_t expn[32 * 3]; // quantization exponent
uint16_t mant[32 * 3]; // quantization mantissa
uint8_t quantsty; // quantization style
uint8_t nguardbits; // number of guard bits
} Jpeg2000QuantStyle;
typedef struct {
typedef struct Jpeg2000Pass {
uint16_t rate;
int64_t disto;
} Jpeg2000Pass;
typedef struct {
typedef struct Jpeg2000Cblk {
uint8_t npasses;
uint8_t ninclpasses; ///< number coding of passes included in codestream
uint8_t ninclpasses; // number coding of passes included in codestream
uint8_t nonzerobits;
uint16_t length;
uint16_t lengthinc;
......@@ -153,36 +162,36 @@ typedef struct {
uint8_t zero;
uint8_t data[8192];
Jpeg2000Pass passes[100];
} Jpeg2000Cblk; ///< code block
} Jpeg2000Cblk; // code block
typedef struct {
uint16_t xi0, xi1, yi0, yi1; ///< codeblock indexes ([xi0, xi1))
typedef struct Jpeg2000Prec {
uint16_t xi0, xi1, yi0, yi1; // codeblock indexes ([xi0, xi1))
Jpeg2000TgtNode *zerobits;
Jpeg2000TgtNode *cblkincl;
} Jpeg2000Prec; ///< precinct
} Jpeg2000Prec; // precinct
typedef struct {
uint16_t coord[2][2]; ///< border coordinates {{x0, x1}, {y0, y1}}
typedef struct Jpeg2000Band {
uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
uint16_t codeblock_width, codeblock_height;
uint16_t cblknx, cblkny;
uint32_t stepsize; ///< quantization stepsize (* 2^13)
uint32_t stepsize; // quantization stepsize (* 2^13)
Jpeg2000Prec *prec;
Jpeg2000Cblk *cblk;
} Jpeg2000Band; ///< subband
} Jpeg2000Band; // subband
typedef struct {
typedef struct Jpeg2000ResLevel {
uint8_t nbands;
uint16_t coord[2][2]; ///< border coordinates {{x0, x1}, {y0, y1}}
uint16_t num_precincts_x, num_precincts_y; ///< number of precincts in x/y direction
uint8_t log2_prec_width, log2_prec_height; ///< exponent of precinct size
uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
uint16_t num_precincts_x, num_precincts_y; // number of precincts in x/y direction
uint8_t log2_prec_width, log2_prec_height; // exponent of precinct size
Jpeg2000Band *band;
} Jpeg2000ResLevel; ///< resolution level
} Jpeg2000ResLevel; // resolution level
typedef struct {
typedef struct Jpeg2000Component {
Jpeg2000ResLevel *reslevel;
DWTContext dwt;
int *data;
uint16_t coord[2][2]; ///< border coordinates {{x0, x1}, {y0, y1}}
uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
} Jpeg2000Component;
/* debug routines */
......
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