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Diffstat (limited to 'ffmpeg1/libavcodec/j2k.h')
| -rw-r--r-- | ffmpeg1/libavcodec/j2k.h | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/ffmpeg1/libavcodec/j2k.h b/ffmpeg1/libavcodec/j2k.h deleted file mode 100644 index 85d5cd0..0000000 --- a/ffmpeg1/libavcodec/j2k.h +++ /dev/null @@ -1,234 +0,0 @@ -/* - * JPEG2000 tables - * Copyright (c) 2007 Kamil Nowosad - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVCODEC_J2K_H -#define AVCODEC_J2K_H - -/** - * JPEG2000 tables - * @file - * @author Kamil Nowosad - */ - -#include "mqc.h" -#include "j2k_dwt.h" - -enum J2kMarkers{ - J2K_SOC = 0xff4f, ///< start of codestream - J2K_SIZ = 0xff51, ///< image and tile size - J2K_COD, ///< coding style default - J2K_COC, ///< coding style component - J2K_TLM = 0xff55, ///< packed packet headers, tile-part header - J2K_PLM = 0xff57, ///< tile-part lengths - J2K_PLT, ///< packet length, main header - J2K_QCD = 0xff5c, ///< quantization default - J2K_QCC, ///< quantization component - J2K_RGN, ///< region of interest - J2K_POC, ///< progression order change - J2K_PPM, ///< packet length, tile-part header - J2K_PPT, ///< packed packet headers, main header - J2K_CRG = 0xff63, ///< component registration - J2K_COM, ///< comment - J2K_SOT = 0xff90, ///< start of tile-part - J2K_SOP, ///< start of packet - J2K_EPH, ///< end of packet header - J2K_SOD, ///< start of data - J2K_EOC = 0xffd9, ///< end of codestream -}; - -enum J2kQuantsty{ ///< quantization style - J2K_QSTY_NONE, ///< no quantization - J2K_QSTY_SI, ///< scalar derived - J2K_QSTY_SE ///< scalar expoounded -}; - -#define J2K_MAX_CBLKW 64 -#define J2K_MAX_CBLKH 64 - -// T1 flags -// flags determining significance of neighbour coefficients -#define J2K_T1_SIG_N 0x0001 -#define J2K_T1_SIG_E 0x0002 -#define J2K_T1_SIG_W 0x0004 -#define J2K_T1_SIG_S 0x0008 -#define J2K_T1_SIG_NE 0x0010 -#define J2K_T1_SIG_NW 0x0020 -#define J2K_T1_SIG_SE 0x0040 -#define J2K_T1_SIG_SW 0x0080 -#define J2K_T1_SIG_NB (J2K_T1_SIG_N | J2K_T1_SIG_E | J2K_T1_SIG_S | J2K_T1_SIG_W \ - |J2K_T1_SIG_NE | J2K_T1_SIG_NW | J2K_T1_SIG_SE | J2K_T1_SIG_SW) -// flags determining sign bit of neighbour coefficients -#define J2K_T1_SGN_N 0x0100 -#define J2K_T1_SGN_S 0x0200 -#define J2K_T1_SGN_W 0x0400 -#define J2K_T1_SGN_E 0x0800 - -#define J2K_T1_VIS 0x1000 -#define J2K_T1_SIG 0x2000 -#define J2K_T1_REF 0x4000 - -#define J2K_T1_SGN 0x8000 - -// Codeblock coding styles -#define J2K_CBLK_BYPASS 0x01 // Selective arithmetic coding bypass -#define J2K_CBLK_RESET 0x02 // Reset context probabilities -#define J2K_CBLK_TERMALL 0x04 // Terminate after each coding pass -#define J2K_CBLK_VSC 0x08 // Vertical stripe causal context formation -#define J2K_CBLK_PREDTERM 0x10 // Predictable termination -#define J2K_CBLK_SEGSYM 0x20 // Segmentation symbols present - -// Coding styles -#define J2K_CSTY_PREC 0x01 // Precincts defined in coding style -#define J2K_CSTY_SOP 0x02 // SOP marker present -#define J2K_CSTY_EPH 0x04 // EPH marker present - -typedef struct { - int data[J2K_MAX_CBLKW][J2K_MAX_CBLKH]; - int flags[J2K_MAX_CBLKW+2][J2K_MAX_CBLKH+2]; - MqcState mqc; -} J2kT1Context; - -typedef struct J2kTgtNode { - uint8_t val; - uint8_t vis; - struct J2kTgtNode *parent; -} J2kTgtNode; - -typedef struct { - uint8_t nreslevels; ///< number of resolution levels - uint8_t log2_cblk_width, - log2_cblk_height; ///< exponent of codeblock size - uint8_t transform; ///< DWT type - uint8_t csty; ///< coding style - uint8_t log2_prec_width, - log2_prec_height; ///< precinct size - uint8_t nlayers; ///< number of layers - uint8_t mct; ///< multiple component transformation - uint8_t cblk_style; ///< codeblock coding style -} J2kCodingStyle; - -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 -} J2kQuantStyle; - -typedef struct { - uint16_t rate; - int64_t disto; -} J2kPass; - -typedef struct { - uint8_t npasses; - uint8_t ninclpasses; ///< number coding of passes included in codestream - uint8_t nonzerobits; - uint16_t length; - uint16_t lengthinc; - uint8_t lblock; - uint8_t zero; - uint8_t data[8192]; - J2kPass passes[100]; -} J2kCblk; ///< code block - -typedef struct { - uint16_t xi0, xi1, yi0, yi1; ///< codeblock indexes ([xi0, xi1)) - J2kTgtNode *zerobits; - J2kTgtNode *cblkincl; -} J2kPrec; ///< precinct - -typedef struct { - 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) - J2kPrec *prec; - J2kCblk *cblk; -} J2kBand; ///< subband - -typedef struct { - 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 - J2kBand *band; -} J2kResLevel; ///< resolution level - -typedef struct { - J2kResLevel *reslevel; - DWTContext dwt; - int *data; - uint16_t coord[2][2]; ///< border coordinates {{x0, x1}, {y0, y1}} -} J2kComponent; - -/* debug routines */ -#if 0 -#undef fprintf -#undef printf -void ff_j2k_printv(int *tab, int l); -void ff_j2k_printu(uint8_t *tab, int l); -#endif - -/* misc tools */ -static inline int ff_j2k_ceildivpow2(int a, int b) -{ - return (a + (1 << b) - 1)>> b; -} - -static inline int ff_j2k_ceildiv(int a, int b) -{ - return (a + b - 1) / b; -} - -/* tag tree routines */ -J2kTgtNode *ff_j2k_tag_tree_init(int w, int h); - -/* TIER-1 routines */ -void ff_j2k_init_tier1_luts(void); - -void ff_j2k_set_significant(J2kT1Context *t1, int x, int y, int negative); - -extern uint8_t ff_j2k_nbctxno_lut[256][4]; - -static inline int ff_j2k_getnbctxno(int flag, int bandno, int vert_causal_ctx_csty_symbol) -{ - return ff_j2k_nbctxno_lut[flag&255][bandno]; -} - -static inline int ff_j2k_getrefctxno(int flag) -{ - static const uint8_t refctxno_lut[2][2] = {{14, 15}, {16, 16}}; - return refctxno_lut[(flag>>14)&1][(flag & 255) != 0]; -} - -extern uint8_t ff_j2k_sgnctxno_lut[16][16], ff_j2k_xorbit_lut[16][16]; - -static inline int ff_j2k_getsgnctxno(int flag, int *xorbit) -{ - *xorbit = ff_j2k_xorbit_lut[flag&15][(flag>>8)&15]; - return ff_j2k_sgnctxno_lut[flag&15][(flag>>8)&15]; -} - -int ff_j2k_init_component(J2kComponent *comp, J2kCodingStyle *codsty, J2kQuantStyle *qntsty, int cbps, int dx, int dy); -void ff_j2k_reinit(J2kComponent *comp, J2kCodingStyle *codsty); -void ff_j2k_cleanup(J2kComponent *comp, J2kCodingStyle *codsty); - -#endif /* AVCODEC_J2K_H */ |