From f7813a5324be39d13ab536c245d15dfc602a7849 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Sun, 29 Dec 2013 12:19:38 +0000 Subject: basic type mechanism working --- ffmpeg/libavcodec/j2k.c | 391 ------------------------------------------------ 1 file changed, 391 deletions(-) delete mode 100644 ffmpeg/libavcodec/j2k.c (limited to 'ffmpeg/libavcodec/j2k.c') diff --git a/ffmpeg/libavcodec/j2k.c b/ffmpeg/libavcodec/j2k.c deleted file mode 100644 index e3c0c13..0000000 --- a/ffmpeg/libavcodec/j2k.c +++ /dev/null @@ -1,391 +0,0 @@ -/* - * JPEG2000 encoder and decoder common functions - * 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 - */ - -/** - * JPEG2000 image encoder and decoder common functions - * @file - * @author Kamil Nowosad - */ - - -#include "avcodec.h" -#include "j2k.h" - -#define SHL(a, n) ((n)>=0 ? (a) << (n) : (a) >> -(n)) - -#if 0 -void ff_j2k_printv(int *tab, int l) -{ - int i; - for (i = 0; i < l; i++) - av_log(NULL, AV_LOG_DEBUG, "%.3d ", tab[i]); - av_log(NULL, AV_LOG_DEBUG, "\n"); -} - -void ff_j2k_printu(uint8_t *tab, int l) -{ - int i; - for (i = 0; i < l; i++) - av_log(NULL, AV_LOG_DEBUG, "%.3hd ", tab[i]); - av_log(NULL, AV_LOG_DEBUG, "\n"); -} -#endif - -/* tag tree routines */ - -/** allocate the memory for tag tree */ - -static int tag_tree_size(int w, int h) -{ - int res = 0; - while (w > 1 || h > 1){ - res += w * h; - w = (w+1) >> 1; - h = (h+1) >> 1; - } - return res + 1; -} - -J2kTgtNode *ff_j2k_tag_tree_init(int w, int h) -{ - int pw = w, ph = h; - J2kTgtNode *res, *t, *t2; - - t = res = av_mallocz(tag_tree_size(w, h)*sizeof(J2kTgtNode)); - - if (res == NULL) - return NULL; - - while (w > 1 || h > 1){ - int i, j; - pw = w; - ph = h; - - w = (w+1) >> 1; - h = (h+1) >> 1; - t2 = t + pw*ph; - - for (i = 0; i < ph; i++) - for (j = 0; j < pw; j++){ - t[i*pw + j].parent = &t2[(i>>1)*w + (j>>1)]; - } - t = t2; - } - t[0].parent = NULL; - return res; -} - -static void tag_tree_zero(J2kTgtNode *t, int w, int h) -{ - int i, siz = tag_tree_size(w, h); - - for (i = 0; i < siz; i++){ - t[i].val = 0; - t[i].vis = 0; - } -} - -uint8_t ff_j2k_nbctxno_lut[256][4]; - -static int getnbctxno(int flag, int bandno, int vert_causal_ctx_csty_symbol) -{ - int h, v, d; - - h = ((flag & J2K_T1_SIG_E) ? 1:0)+ - ((flag & J2K_T1_SIG_W) ? 1:0); - v = ((flag & J2K_T1_SIG_N) ? 1:0); - if (!vert_causal_ctx_csty_symbol) - v = v + ((flag & J2K_T1_SIG_S) ? 1:0); - d = ((flag & J2K_T1_SIG_NE) ? 1:0)+ - ((flag & J2K_T1_SIG_NW) ? 1:0); - if (!vert_causal_ctx_csty_symbol) - d = d + ((flag & J2K_T1_SIG_SE) ? 1:0)+ - ((flag & J2K_T1_SIG_SW) ? 1:0); - if (bandno < 3){ - if (bandno == 1) - FFSWAP(int, h, v); - if (h == 2) return 8; - if (h == 1){ - if (v >= 1) return 7; - if (d >= 1) return 6; - return 5; - } - if (v == 2) return 4; - if (v == 1) return 3; - if (d >= 2) return 2; - if (d == 1) return 1; - return 0; - } else{ - if (d >= 3) return 8; - if (d == 2){ - if (h+v >= 1) return 7; - return 6; - } - if (d == 1){ - if (h+v >= 2) return 5; - if (h+v == 1) return 4; - return 3; - } - if (h+v >= 2) return 2; - if (h+v == 1) return 1; - return 0; - } -} - -uint8_t ff_j2k_sgnctxno_lut[16][16], ff_j2k_xorbit_lut[16][16]; - -static int getsgnctxno(int flag, uint8_t *xorbit) -{ - int vcontrib, hcontrib; - static const int contribtab[3][3] = {{0, -1, 1}, {-1, -1, 0}, {1, 0, 1}}; - static const int ctxlbltab[3][3] = {{13, 12, 11}, {10, 9, 10}, {11, 12, 13}}; - static const int xorbittab[3][3] = {{1, 1, 1,}, {1, 0, 0}, {0, 0, 0}}; - - hcontrib = contribtab[flag & J2K_T1_SIG_E ? flag & J2K_T1_SGN_E ? 1:2:0] - [flag & J2K_T1_SIG_W ? flag & J2K_T1_SGN_W ? 1:2:0]+1; - vcontrib = contribtab[flag & J2K_T1_SIG_S ? flag & J2K_T1_SGN_S ? 1:2:0] - [flag & J2K_T1_SIG_N ? flag & J2K_T1_SGN_N ? 1:2:0]+1; - *xorbit = xorbittab[hcontrib][vcontrib]; - return ctxlbltab[hcontrib][vcontrib]; -} - -void ff_j2k_init_tier1_luts(void) -{ - int i, j; - for (i = 0; i < 256; i++) - for (j = 0; j < 4; j++) - ff_j2k_nbctxno_lut[i][j] = getnbctxno(i, j, 0); - for (i = 0; i < 16; i++) - for (j = 0; j < 16; j++) - ff_j2k_sgnctxno_lut[i][j] = getsgnctxno(i + (j << 8), &ff_j2k_xorbit_lut[i][j]); -} - -void ff_j2k_set_significant(J2kT1Context *t1, int x, int y, int negative) -{ - x++; y++; - t1->flags[y][x] |= J2K_T1_SIG; - if (negative){ - t1->flags[y][x+1] |= J2K_T1_SIG_W | J2K_T1_SGN_W; - t1->flags[y][x-1] |= J2K_T1_SIG_E | J2K_T1_SGN_E; - t1->flags[y+1][x] |= J2K_T1_SIG_N | J2K_T1_SGN_N; - t1->flags[y-1][x] |= J2K_T1_SIG_S | J2K_T1_SGN_S; - } else{ - t1->flags[y][x+1] |= J2K_T1_SIG_W; - t1->flags[y][x-1] |= J2K_T1_SIG_E; - t1->flags[y+1][x] |= J2K_T1_SIG_N; - t1->flags[y-1][x] |= J2K_T1_SIG_S; - } - t1->flags[y+1][x+1] |= J2K_T1_SIG_NW; - t1->flags[y+1][x-1] |= J2K_T1_SIG_NE; - t1->flags[y-1][x+1] |= J2K_T1_SIG_SW; - t1->flags[y-1][x-1] |= J2K_T1_SIG_SE; -} - -int ff_j2k_init_component(J2kComponent *comp, J2kCodingStyle *codsty, J2kQuantStyle *qntsty, int cbps, int dx, int dy) -{ - int reslevelno, bandno, gbandno = 0, ret, i, j, csize = 1; - - if (ret=ff_j2k_dwt_init(&comp->dwt, comp->coord, codsty->nreslevels-1, codsty->transform)) - return ret; - for (i = 0; i < 2; i++) - csize *= comp->coord[i][1] - comp->coord[i][0]; - - comp->data = av_malloc(csize * sizeof(int)); - if (!comp->data) - return AVERROR(ENOMEM); - comp->reslevel = av_malloc(codsty->nreslevels * sizeof(J2kResLevel)); - - if (!comp->reslevel) - return AVERROR(ENOMEM); - for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){ - int declvl = codsty->nreslevels - reslevelno; - J2kResLevel *reslevel = comp->reslevel + reslevelno; - - for (i = 0; i < 2; i++) - for (j = 0; j < 2; j++) - reslevel->coord[i][j] = - ff_j2k_ceildivpow2(comp->coord[i][j], declvl - 1); - - if (reslevelno == 0) - reslevel->nbands = 1; - else - reslevel->nbands = 3; - - if (reslevel->coord[0][1] == reslevel->coord[0][0]) - reslevel->num_precincts_x = 0; - else - reslevel->num_precincts_x = ff_j2k_ceildivpow2(reslevel->coord[0][1], codsty->log2_prec_width) - - (reslevel->coord[0][0] >> codsty->log2_prec_width); - - if (reslevel->coord[1][1] == reslevel->coord[1][0]) - reslevel->num_precincts_y = 0; - else - reslevel->num_precincts_y = ff_j2k_ceildivpow2(reslevel->coord[1][1], codsty->log2_prec_height) - - (reslevel->coord[1][0] >> codsty->log2_prec_height); - - reslevel->band = av_malloc(reslevel->nbands * sizeof(J2kBand)); - if (!reslevel->band) - return AVERROR(ENOMEM); - for (bandno = 0; bandno < reslevel->nbands; bandno++, gbandno++){ - J2kBand *band = reslevel->band + bandno; - int cblkno, precx, precy, precno; - int x0, y0, x1, y1; - int xi0, yi0, xi1, yi1; - int cblkperprecw, cblkperprech; - - if (qntsty->quantsty != J2K_QSTY_NONE){ - static const uint8_t lut_gain[2][4] = {{0, 0, 0, 0}, {0, 1, 1, 2}}; - int numbps; - - numbps = cbps + lut_gain[codsty->transform][bandno + reslevelno>0]; - band->stepsize = SHL(2048 + qntsty->mant[gbandno], 2 + numbps - qntsty->expn[gbandno]); - } else - band->stepsize = 1 << 13; - - if (reslevelno == 0){ // the same everywhere - band->codeblock_width = 1 << FFMIN(codsty->log2_cblk_width, codsty->log2_prec_width-1); - band->codeblock_height = 1 << FFMIN(codsty->log2_cblk_height, codsty->log2_prec_height-1); - for (i = 0; i < 2; i++) - for (j = 0; j < 2; j++) - band->coord[i][j] = ff_j2k_ceildivpow2(comp->coord[i][j], declvl-1); - } else{ - band->codeblock_width = 1 << FFMIN(codsty->log2_cblk_width, codsty->log2_prec_width); - band->codeblock_height = 1 << FFMIN(codsty->log2_cblk_height, codsty->log2_prec_height); - - for (i = 0; i < 2; i++) - for (j = 0; j < 2; j++) - band->coord[i][j] = ff_j2k_ceildivpow2(comp->coord[i][j] - (((bandno+1>>i)&1) << declvl-1), declvl); - } - band->cblknx = ff_j2k_ceildiv(band->coord[0][1], band->codeblock_width) - band->coord[0][0] / band->codeblock_width; - band->cblkny = ff_j2k_ceildiv(band->coord[1][1], band->codeblock_height) - band->coord[1][0] / band->codeblock_height; - - for (j = 0; j < 2; j++) - band->coord[0][j] = ff_j2k_ceildiv(band->coord[0][j], dx); - for (j = 0; j < 2; j++) - band->coord[1][j] = ff_j2k_ceildiv(band->coord[1][j], dy); - - band->cblknx = ff_j2k_ceildiv(band->cblknx, dx); - band->cblkny = ff_j2k_ceildiv(band->cblkny, dy); - - band->cblk = av_malloc(sizeof(J2kCblk) * band->cblknx * band->cblkny); - if (!band->cblk) - return AVERROR(ENOMEM); - band->prec = av_malloc(sizeof(J2kCblk) * reslevel->num_precincts_x * reslevel->num_precincts_y); - if (!band->prec) - return AVERROR(ENOMEM); - - for (cblkno = 0; cblkno < band->cblknx * band->cblkny; cblkno++){ - J2kCblk *cblk = band->cblk + cblkno; - cblk->zero = 0; - cblk->lblock = 3; - cblk->length = 0; - cblk->lengthinc = 0; - cblk->npasses = 0; - } - - y0 = band->coord[1][0]; - y1 = ((band->coord[1][0] + (1<log2_prec_height)) & ~((1<log2_prec_height)-1)) - y0; - yi0 = 0; - yi1 = ff_j2k_ceildivpow2(y1 - y0, codsty->log2_cblk_height) << codsty->log2_cblk_height; - yi1 = FFMIN(yi1, band->cblkny); - cblkperprech = 1<<(codsty->log2_prec_height - codsty->log2_cblk_height); - for (precy = 0, precno = 0; precy < reslevel->num_precincts_y; precy++){ - for (precx = 0; precx < reslevel->num_precincts_x; precx++, precno++){ - band->prec[precno].yi0 = yi0; - band->prec[precno].yi1 = yi1; - } - yi1 += cblkperprech; - yi0 = yi1 - cblkperprech; - yi1 = FFMIN(yi1, band->cblkny); - } - x0 = band->coord[0][0]; - x1 = ((band->coord[0][0] + (1<log2_prec_width)) & ~((1<log2_prec_width)-1)) - x0; - xi0 = 0; - xi1 = ff_j2k_ceildivpow2(x1 - x0, codsty->log2_cblk_width) << codsty->log2_cblk_width; - xi1 = FFMIN(xi1, band->cblknx); - - cblkperprecw = 1<<(codsty->log2_prec_width - codsty->log2_cblk_width); - for (precx = 0, precno = 0; precx < reslevel->num_precincts_x; precx++){ - for (precy = 0; precy < reslevel->num_precincts_y; precy++, precno = 0){ - J2kPrec *prec = band->prec + precno; - prec->xi0 = xi0; - prec->xi1 = xi1; - prec->cblkincl = ff_j2k_tag_tree_init(prec->xi1 - prec->xi0, - prec->yi1 - prec->yi0); - prec->zerobits = ff_j2k_tag_tree_init(prec->xi1 - prec->xi0, - prec->yi1 - prec->yi0); - if (!prec->cblkincl || !prec->zerobits) - return AVERROR(ENOMEM); - - } - xi1 += cblkperprecw; - xi0 = xi1 - cblkperprecw; - xi1 = FFMIN(xi1, band->cblknx); - } - } - } - return 0; -} - -void ff_j2k_reinit(J2kComponent *comp, J2kCodingStyle *codsty) -{ - int reslevelno, bandno, cblkno, precno; - for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){ - J2kResLevel *rlevel = comp->reslevel + reslevelno; - for (bandno = 0; bandno < rlevel->nbands; bandno++){ - J2kBand *band = rlevel->band + bandno; - for(precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++){ - J2kPrec *prec = band->prec + precno; - tag_tree_zero(prec->zerobits, prec->xi1 - prec->xi0, prec->yi1 - prec->yi0); - tag_tree_zero(prec->cblkincl, prec->xi1 - prec->xi0, prec->yi1 - prec->yi0); - } - for (cblkno = 0; cblkno < band->cblknx * band->cblkny; cblkno++){ - J2kCblk *cblk = band->cblk + cblkno; - cblk->length = 0; - cblk->lblock = 3; - } - } - } -} - -void ff_j2k_cleanup(J2kComponent *comp, J2kCodingStyle *codsty) -{ - int reslevelno, bandno, precno; - for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){ - J2kResLevel *reslevel = comp->reslevel + reslevelno; - - for (bandno = 0; bandno < reslevel->nbands ; bandno++){ - J2kBand *band = reslevel->band + bandno; - for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){ - J2kPrec *prec = band->prec + precno; - av_freep(&prec->zerobits); - av_freep(&prec->cblkincl); - } - av_freep(&band->cblk); - av_freep(&band->prec); - } - av_freep(&reslevel->band); - } - - ff_j2k_dwt_destroy(&comp->dwt); - av_freep(&comp->reslevel); - av_freep(&comp->data); -} -- cgit v1.2.3