making act segmenter

1 files changed, 0 insertions, 1046 deletions

diff --git a/ffmpeg1/libavcodec/j2kenc.c b/ffmpeg1/libavcodec/j2kenc.c
deleted file mode 100644
index 5d447ed..0000000
--- a/ffmpeg1/libavcodec/j2kenc.c
+++ /dev/null
@@ -1,1046 +0,0 @@
-/*
- * JPEG2000 image encoder
- * 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
- * @file
- * @author Kamil Nowosad
- */
-
-#include <float.h>
-#include "avcodec.h"
-#include "internal.h"
-#include "bytestream.h"
-#include "j2k.h"
-#include "libavutil/common.h"
-
-#define NMSEDEC_BITS 7
-#define NMSEDEC_FRACBITS (NMSEDEC_BITS-1)
-#define WMSEDEC_SHIFT 13 ///< must be >= 13
-#define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
-
-static int lut_nmsedec_ref [1<<NMSEDEC_BITS],
-           lut_nmsedec_ref0[1<<NMSEDEC_BITS],
-           lut_nmsedec_sig [1<<NMSEDEC_BITS],
-           lut_nmsedec_sig0[1<<NMSEDEC_BITS];
-
-static const int dwt_norms[2][4][10] = { // [dwt_type][band][rlevel] (multiplied by 10000)
-    {{10000, 19650, 41770,  84030, 169000, 338400,  676900, 1353000, 2706000, 5409000},
-     {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
-     {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
-     {20800, 38650, 83070, 171800, 347100, 695900, 1393000, 2786000, 5572000}},
-
-    {{10000, 15000, 27500, 53750, 106800, 213400, 426700, 853300, 1707000, 3413000},
-     {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
-     {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
-     { 7186,  9218, 15860, 30430,  60190, 120100, 240000, 479700,  959300}}
-};
-
-typedef struct {
-   J2kComponent *comp;
-} J2kTile;
-
-typedef struct {
-    AVCodecContext *avctx;
-    AVFrame picture;
-
-    int width, height; ///< image width and height
-    uint8_t cbps[4]; ///< bits per sample in particular components
-    int chroma_shift[2];
-    uint8_t planar;
-    int ncomponents;
-    int tile_width, tile_height; ///< tile size
-    int numXtiles, numYtiles;
-
-    uint8_t *buf_start;
-    uint8_t *buf;
-    uint8_t *buf_end;
-    int bit_index;
-
-    int64_t lambda;
-
-    J2kCodingStyle codsty;
-    J2kQuantStyle  qntsty;
-
-    J2kTile *tile;
-} J2kEncoderContext;
-
-
-/* debug */
-#if 0
-#undef ifprintf
-#undef printf
-
-static void nspaces(FILE *fd, int n)
-{
-    while(n--) putc(' ', fd);
-}
-
-static void printcomp(J2kComponent *comp)
-{
-    int i;
-    for (i = 0; i < comp->y1 - comp->y0; i++)
-        ff_j2k_printv(comp->data + i * (comp->x1 - comp->x0), comp->x1 - comp->x0);
-}
-
-static void dump(J2kEncoderContext *s, FILE *fd)
-{
-    int tileno, compno, reslevelno, bandno, precno;
-    fprintf(fd, "XSiz = %d, YSiz = %d, tile_width = %d, tile_height = %d\n"
-                "numXtiles = %d, numYtiles = %d, ncomponents = %d\n"
-                "tiles:\n",
-            s->width, s->height, s->tile_width, s->tile_height,
-            s->numXtiles, s->numYtiles, s->ncomponents);
-    for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
-        J2kTile *tile = s->tile + tileno;
-        nspaces(fd, 2);
-        fprintf(fd, "tile %d:\n", tileno);
-        for(compno = 0; compno < s->ncomponents; compno++){
-            J2kComponent *comp = tile->comp + compno;
-            nspaces(fd, 4);
-            fprintf(fd, "component %d:\n", compno);
-            nspaces(fd, 4);
-            fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
-                        comp->x0, comp->x1, comp->y0, comp->y1);
-            for(reslevelno = 0; reslevelno < s->nreslevels; reslevelno++){
-                J2kResLevel *reslevel = comp->reslevel + reslevelno;
-                nspaces(fd, 6);
-                fprintf(fd, "reslevel %d:\n", reslevelno);
-                nspaces(fd, 6);
-                fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
-                        reslevel->x0, reslevel->x1, reslevel->y0,
-                        reslevel->y1, reslevel->nbands);
-                for(bandno = 0; bandno < reslevel->nbands; bandno++){
-                    J2kBand *band = reslevel->band + bandno;
-                    nspaces(fd, 8);
-                    fprintf(fd, "band %d:\n", bandno);
-                    nspaces(fd, 8);
-                    fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d,"
-                                "codeblock_width = %d, codeblock_height = %d cblknx = %d cblkny = %d\n",
-                                band->x0, band->x1,
-                                band->y0, band->y1,
-                                band->codeblock_width, band->codeblock_height,
-                                band->cblknx, band->cblkny);
-                    for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
-                        J2kPrec *prec = band->prec + precno;
-                        nspaces(fd, 10);
-                        fprintf(fd, "prec %d:\n", precno);
-                        nspaces(fd, 10);
-                        fprintf(fd, "xi0 = %d, xi1 = %d, yi0 = %d, yi1 = %d\n",
-                                     prec->xi0, prec->xi1, prec->yi0, prec->yi1);
-                    }
-                }
-            }
-        }
-    }
-}
-#endif
-
-/* bitstream routines */
-
-/** put n times val bit */
-static void put_bits(J2kEncoderContext *s, int val, int n) // TODO: optimize
-{
-    while (n-- > 0){
-        if (s->bit_index == 8)
-        {
-            s->bit_index = *s->buf == 0xff;
-            *(++s->buf) = 0;
-        }
-        *s->buf |= val << (7 - s->bit_index++);
-    }
-}
-
-/** put n least significant bits of a number num */
-static void put_num(J2kEncoderContext *s, int num, int n)
-{
-    while(--n >= 0)
-        put_bits(s, (num >> n) & 1, 1);
-}
-
-/** flush the bitstream */
-static void j2k_flush(J2kEncoderContext *s)
-{
-    if (s->bit_index){
-        s->bit_index = 0;
-        s->buf++;
-    }
-}
-
-/* tag tree routines */
-
-/** code the value stored in node */
-static void tag_tree_code(J2kEncoderContext *s, J2kTgtNode *node, int threshold)
-{
-    J2kTgtNode *stack[30];
-    int sp = 1, curval = 0;
-    stack[0] = node;
-
-    node = node->parent;
-    while(node){
-        if (node->vis){
-            curval = node->val;
-            break;
-        }
-        node->vis++;
-        stack[sp++] = node;
-        node = node->parent;
-    }
-    while(--sp >= 0){
-        if (stack[sp]->val >= threshold){
-            put_bits(s, 0, threshold - curval);
-            break;
-        }
-        put_bits(s, 0, stack[sp]->val - curval);
-        put_bits(s, 1, 1);
-        curval = stack[sp]->val;
-    }
-}
-
-/** update the value in node */
-static void tag_tree_update(J2kTgtNode *node)
-{
-    int lev = 0;
-    while (node->parent){
-        if (node->parent->val <= node->val)
-            break;
-        node->parent->val = node->val;
-        node = node->parent;
-        lev++;
-    }
-}
-
-static int put_siz(J2kEncoderContext *s)
-{
-    int i;
-
-    if (s->buf_end - s->buf < 40 + 3 * s->ncomponents)
-        return -1;
-
-    bytestream_put_be16(&s->buf, J2K_SIZ);
-    bytestream_put_be16(&s->buf, 38 + 3 * s->ncomponents); // Lsiz
-    bytestream_put_be16(&s->buf, 0); // Rsiz
-    bytestream_put_be32(&s->buf, s->width); // width
-    bytestream_put_be32(&s->buf, s->height); // height
-    bytestream_put_be32(&s->buf, 0); // X0Siz
-    bytestream_put_be32(&s->buf, 0); // Y0Siz
-
-    bytestream_put_be32(&s->buf, s->tile_width); // XTSiz
-    bytestream_put_be32(&s->buf, s->tile_height); // YTSiz
-    bytestream_put_be32(&s->buf, 0); // XT0Siz
-    bytestream_put_be32(&s->buf, 0); // YT0Siz
-    bytestream_put_be16(&s->buf, s->ncomponents); // CSiz
-
-    for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
-        bytestream_put_byte(&s->buf, 7);
-        bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[0]:1);
-        bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[1]:1);
-    }
-    return 0;
-}
-
-static int put_cod(J2kEncoderContext *s)
-{
-    J2kCodingStyle *codsty = &s->codsty;
-
-    if (s->buf_end - s->buf < 14)
-        return -1;
-
-    bytestream_put_be16(&s->buf, J2K_COD);
-    bytestream_put_be16(&s->buf, 12); // Lcod
-    bytestream_put_byte(&s->buf, 0);  // Scod
-    // SGcod
-    bytestream_put_byte(&s->buf, 0); // progression level
-    bytestream_put_be16(&s->buf, 1); // num of layers
-    if(s->avctx->pix_fmt == AV_PIX_FMT_YUV444P){
-        bytestream_put_byte(&s->buf, 2); // ICT
-    }else{
-        bytestream_put_byte(&s->buf, 0); // unspecified
-    }
-    // SPcod
-    bytestream_put_byte(&s->buf, codsty->nreslevels - 1); // num of decomp. levels
-    bytestream_put_byte(&s->buf, codsty->log2_cblk_width-2); // cblk width
-    bytestream_put_byte(&s->buf, codsty->log2_cblk_height-2); // cblk height
-    bytestream_put_byte(&s->buf, 0); // cblk style
-    bytestream_put_byte(&s->buf, codsty->transform); // transformation
-    return 0;
-}
-
-static int put_qcd(J2kEncoderContext *s, int compno)
-{
-    int i, size;
-    J2kCodingStyle *codsty = &s->codsty;
-    J2kQuantStyle  *qntsty = &s->qntsty;
-
-    if (qntsty->quantsty == J2K_QSTY_NONE)
-        size = 4 + 3 * (codsty->nreslevels-1);
-    else // QSTY_SE
-        size = 5 + 6 * (codsty->nreslevels-1);
-
-    if (s->buf_end - s->buf < size + 2)
-        return -1;
-
-    bytestream_put_be16(&s->buf, J2K_QCD);
-    bytestream_put_be16(&s->buf, size);  // LQcd
-    bytestream_put_byte(&s->buf, (qntsty->nguardbits << 5) | qntsty->quantsty);  // Sqcd
-    if (qntsty->quantsty == J2K_QSTY_NONE)
-        for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
-            bytestream_put_byte(&s->buf, qntsty->expn[i] << 3);
-    else // QSTY_SE
-        for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
-            bytestream_put_be16(&s->buf, (qntsty->expn[i] << 11) | qntsty->mant[i]);
-    return 0;
-}
-
-static uint8_t *put_sot(J2kEncoderContext *s, int tileno)
-{
-    uint8_t *psotptr;
-
-    if (s->buf_end - s->buf < 12)
-        return NULL;
-
-    bytestream_put_be16(&s->buf, J2K_SOT);
-    bytestream_put_be16(&s->buf, 10); // Lsot
-    bytestream_put_be16(&s->buf, tileno); // Isot
-
-    psotptr = s->buf;
-    bytestream_put_be32(&s->buf, 0); // Psot (filled in later)
-
-    bytestream_put_byte(&s->buf, 0); // TPsot
-    bytestream_put_byte(&s->buf, 1); // TNsot
-    return psotptr;
-}
-
-/**
- * compute the sizes of tiles, resolution levels, bands, etc.
- * allocate memory for them
- * divide the input image into tile-components
- */
-static int init_tiles(J2kEncoderContext *s)
-{
-    int tileno, tilex, tiley, compno;
-    J2kCodingStyle *codsty = &s->codsty;
-    J2kQuantStyle  *qntsty = &s->qntsty;
-
-    s->numXtiles = ff_j2k_ceildiv(s->width, s->tile_width);
-    s->numYtiles = ff_j2k_ceildiv(s->height, s->tile_height);
-
-    s->tile = av_malloc(s->numXtiles * s->numYtiles * sizeof(J2kTile));
-    if (!s->tile)
-        return AVERROR(ENOMEM);
-    for (tileno = 0, tiley = 0; tiley < s->numYtiles; tiley++)
-        for (tilex = 0; tilex < s->numXtiles; tilex++, tileno++){
-            J2kTile *tile = s->tile + tileno;
-
-            tile->comp = av_malloc(s->ncomponents * sizeof(J2kComponent));
-            if (!tile->comp)
-                return AVERROR(ENOMEM);
-            for (compno = 0; compno < s->ncomponents; compno++){
-                J2kComponent *comp = tile->comp + compno;
-                int ret, i, j;
-
-                comp->coord[0][0] = tilex * s->tile_width;
-                comp->coord[0][1] = FFMIN((tilex+1)*s->tile_width, s->width);
-                comp->coord[1][0] = tiley * s->tile_height;
-                comp->coord[1][1] = FFMIN((tiley+1)*s->tile_height, s->height);
-                if (compno > 0)
-                    for (i = 0; i < 2; i++)
-                        for (j = 0; j < 2; j++)
-                            comp->coord[i][j] = ff_j2k_ceildivpow2(comp->coord[i][j], s->chroma_shift[i]);
-
-                if (ret = ff_j2k_init_component(comp, codsty, qntsty, s->cbps[compno], compno?1<<s->chroma_shift[0]:1, compno?1<<s->chroma_shift[1]:1))
-                    return ret;
-            }
-        }
-    return 0;
-}
-
-static void copy_frame(J2kEncoderContext *s)
-{
-    int tileno, compno, i, y, x;
-    uint8_t *line;
-    for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
-        J2kTile *tile = s->tile + tileno;
-        if (s->planar){
-            for (compno = 0; compno < s->ncomponents; compno++){
-                J2kComponent *comp = tile->comp + compno;
-                int *dst = comp->data;
-                line = s->picture.data[compno]
-                       + comp->coord[1][0] * s->picture.linesize[compno]
-                       + comp->coord[0][0];
-                for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){
-                    uint8_t *ptr = line;
-                    for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++)
-                        *dst++ = *ptr++ - (1 << 7);
-                    line += s->picture.linesize[compno];
-                }
-            }
-        } else{
-            line = s->picture.data[0] + tile->comp[0].coord[1][0] * s->picture.linesize[0]
-                   + tile->comp[0].coord[0][0] * s->ncomponents;
-
-            i = 0;
-            for (y = tile->comp[0].coord[1][0]; y < tile->comp[0].coord[1][1]; y++){
-                uint8_t *ptr = line;
-                for (x = tile->comp[0].coord[0][0]; x < tile->comp[0].coord[0][1]; x++, i++){
-                    for (compno = 0; compno < s->ncomponents; compno++){
-                        tile->comp[compno].data[i] = *ptr++  - (1 << 7);
-                    }
-                }
-                line += s->picture.linesize[0];
-            }
-        }
-    }
-}
-
-static void init_quantization(J2kEncoderContext *s)
-{
-    int compno, reslevelno, bandno;
-    J2kQuantStyle  *qntsty = &s->qntsty;
-    J2kCodingStyle *codsty = &s->codsty;
-
-    for (compno = 0; compno < s->ncomponents; compno++){
-        int gbandno = 0;
-        for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
-            int nbands, lev = codsty->nreslevels - reslevelno - 1;
-            nbands = reslevelno ? 3 : 1;
-            for (bandno = 0; bandno < nbands; bandno++, gbandno++){
-                int expn, mant;
-
-                if (codsty->transform == FF_DWT97){
-                    int bandpos = bandno + (reslevelno>0),
-                        ss = 81920000 / dwt_norms[0][bandpos][lev],
-                        log = av_log2(ss);
-                    mant = (11 - log < 0 ? ss >> log - 11 : ss << 11 - log) & 0x7ff;
-                    expn = s->cbps[compno] - log + 13;
-                } else
-                    expn = ((bandno&2)>>1) + (reslevelno>0) + s->cbps[compno];
-
-                qntsty->expn[gbandno] = expn;
-                qntsty->mant[gbandno] = mant;
-            }
-        }
-    }
-}
-
-static void init_luts(void)
-{
-    int i, a,
-        mask = ~((1<<NMSEDEC_FRACBITS)-1);
-
-    for (i = 0; i < (1 << NMSEDEC_BITS); i++){
-        lut_nmsedec_sig[i]  = FFMAX(6*i - (9<<NMSEDEC_FRACBITS-1) << 12-NMSEDEC_FRACBITS, 0);
-        lut_nmsedec_sig0[i] = FFMAX((i*i + (1<<NMSEDEC_FRACBITS-1) & mask) << 1, 0);
-
-        a = (i >> (NMSEDEC_BITS-2)&2) + 1;
-        lut_nmsedec_ref[i]  = FFMAX((-2*i + (1<<NMSEDEC_FRACBITS) + a*i - (a*a<<NMSEDEC_FRACBITS-2))
-                                    << 13-NMSEDEC_FRACBITS, 0);
-        lut_nmsedec_ref0[i] = FFMAX(((i*i + (1-4*i << NMSEDEC_FRACBITS-1) + (1<<2*NMSEDEC_FRACBITS)) & mask)
-                                    << 1, 0);
-    }
-}
-
-/* tier-1 routines */
-static int getnmsedec_sig(int x, int bpno)
-{
-    if (bpno > NMSEDEC_FRACBITS)
-        return lut_nmsedec_sig[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
-    return lut_nmsedec_sig0[x & ((1 << NMSEDEC_BITS) - 1)];
-}
-
-static int getnmsedec_ref(int x, int bpno)
-{
-    if (bpno > NMSEDEC_FRACBITS)
-        return lut_nmsedec_ref[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
-    return lut_nmsedec_ref0[x & ((1 << NMSEDEC_BITS) - 1)];
-}
-
-static void encode_sigpass(J2kT1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
-{
-    int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
-    int vert_causal_ctx_csty_loc_symbol;
-    for (y0 = 0; y0 < height; y0 += 4)
-        for (x = 0; x < width; x++)
-            for (y = y0; y < height && y < y0+4; y++){
-                if (!(t1->flags[y+1][x+1] & J2K_T1_SIG) && (t1->flags[y+1][x+1] & J2K_T1_SIG_NB)){
-                    int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno, vert_causal_ctx_csty_loc_symbol),
-                        bit = t1->data[y][x] & mask ? 1 : 0;
-                    ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
-                    if (bit){
-                        int xorbit;
-                        int ctxno = ff_j2k_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
-                        ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[y+1][x+1] >> 15) ^ xorbit);
-                        *nmsedec += getnmsedec_sig(t1->data[y][x], bpno + NMSEDEC_FRACBITS);
-                        ff_j2k_set_significant(t1, x, y, t1->flags[y+1][x+1] >> 15);
-                    }
-                    t1->flags[y+1][x+1] |= J2K_T1_VIS;
-                }
-            }
-}
-
-static void encode_refpass(J2kT1Context *t1, int width, int height, int *nmsedec, int bpno)
-{
-    int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
-    for (y0 = 0; y0 < height; y0 += 4)
-        for (x = 0; x < width; x++)
-            for (y = y0; y < height && y < y0+4; y++)
-                if ((t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS)) == J2K_T1_SIG){
-                    int ctxno = ff_j2k_getrefctxno(t1->flags[y+1][x+1]);
-                    *nmsedec += getnmsedec_ref(t1->data[y][x], bpno + NMSEDEC_FRACBITS);
-                    ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[y][x] & mask ? 1:0);
-                    t1->flags[y+1][x+1] |= J2K_T1_REF;
-                }
-}
-
-static void encode_clnpass(J2kT1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
-{
-    int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
-    int vert_causal_ctx_csty_loc_symbol;
-    for (y0 = 0; y0 < height; y0 += 4)
-        for (x = 0; x < width; x++){
-            if (y0 + 3 < height && !(
-            (t1->flags[y0+1][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
-            (t1->flags[y0+2][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
-            (t1->flags[y0+3][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
-            (t1->flags[y0+4][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG))))
-            {
-                // aggregation mode
-                int rlen;
-                for (rlen = 0; rlen < 4; rlen++)
-                    if (t1->data[y0+rlen][x] & mask)
-                        break;
-                ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL, rlen != 4);
-                if (rlen == 4)
-                    continue;
-                ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen >> 1);
-                ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
-                for (y = y0 + rlen; y < y0 + 4; y++){
-                    if (!(t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS))){
-                        int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno, vert_causal_ctx_csty_loc_symbol);
-                        if (y > y0 + rlen)
-                            ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[y][x] & mask ? 1:0);
-                        if (t1->data[y][x] & mask){ // newly significant
-                            int xorbit;
-                            int ctxno = ff_j2k_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
-                            *nmsedec += getnmsedec_sig(t1->data[y][x], bpno + NMSEDEC_FRACBITS);
-                            ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[y+1][x+1] >> 15) ^ xorbit);
-                            ff_j2k_set_significant(t1, x, y, t1->flags[y+1][x+1] >> 15);
-                        }
-                    }
-                    t1->flags[y+1][x+1] &= ~J2K_T1_VIS;
-                }
-            } else{
-                for (y = y0; y < y0 + 4 && y < height; y++){
-                    if (!(t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS))){
-                        int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno, vert_causal_ctx_csty_loc_symbol);
-                        ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[y][x] & mask ? 1:0);
-                        if (t1->data[y][x] & mask){ // newly significant
-                            int xorbit;
-                            int ctxno = ff_j2k_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
-                            *nmsedec += getnmsedec_sig(t1->data[y][x], bpno + NMSEDEC_FRACBITS);
-                            ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[y+1][x+1] >> 15) ^ xorbit);
-                            ff_j2k_set_significant(t1, x, y, t1->flags[y+1][x+1] >> 15);
-                        }
-                    }
-                    t1->flags[y+1][x+1] &= ~J2K_T1_VIS;
-                }
-            }
-        }
-}
-
-static void encode_cblk(J2kEncoderContext *s, J2kT1Context *t1, J2kCblk *cblk, J2kTile *tile,
-                        int width, int height, int bandpos, int lev)
-{
-    int pass_t = 2, passno, x, y, max=0, nmsedec, bpno;
-    int64_t wmsedec = 0;
-
-    for (y = 0; y < height+2; y++)
-        memset(t1->flags[y], 0, (width+2)*sizeof(int));
-
-    for (y = 0; y < height; y++){
-        for (x = 0; x < width; x++){
-            if (t1->data[y][x] < 0){
-                t1->flags[y+1][x+1] |= J2K_T1_SGN;
-                t1->data[y][x] = -t1->data[y][x];
-            }
-            max = FFMAX(max, t1->data[y][x]);
-        }
-    }
-
-    if (max == 0){
-        cblk->nonzerobits = 0;
-        bpno = 0;
-    } else{
-        cblk->nonzerobits = av_log2(max) + 1 - NMSEDEC_FRACBITS;
-        bpno = cblk->nonzerobits - 1;
-    }
-
-    ff_mqc_initenc(&t1->mqc, cblk->data);
-
-    for (passno = 0; bpno >= 0; passno++){
-        nmsedec=0;
-
-        switch(pass_t){
-            case 0: encode_sigpass(t1, width, height, bandpos, &nmsedec, bpno);
-                    break;
-            case 1: encode_refpass(t1, width, height, &nmsedec, bpno);
-                    break;
-            case 2: encode_clnpass(t1, width, height, bandpos, &nmsedec, bpno);
-                    break;
-        }
-
-        cblk->passes[passno].rate = 3 + ff_mqc_length(&t1->mqc);
-        wmsedec += (int64_t)nmsedec << (2*bpno);
-        cblk->passes[passno].disto = wmsedec;
-
-        if (++pass_t == 3){
-            pass_t = 0;
-            bpno--;
-        }
-    }
-    cblk->npasses = passno;
-    cblk->ninclpasses = passno;
-
-    // TODO: optional flush on each pass
-    cblk->passes[passno-1].rate = ff_mqc_flush(&t1->mqc);
-}
-
-/* tier-2 routines: */
-
-static void putnumpasses(J2kEncoderContext *s, int n)
-{
-    if (n == 1)
-        put_num(s, 0, 1);
-    else if (n == 2)
-        put_num(s, 2, 2);
-    else if (n <= 5)
-        put_num(s, 0xc | (n-3), 4);
-    else if (n <= 36)
-        put_num(s, 0x1e0 | (n-6), 9);
-    else
-        put_num(s, 0xff80 | (n-37), 16);
-}
-
-
-static int encode_packet(J2kEncoderContext *s, J2kResLevel *rlevel, int precno,
-                          uint8_t *expn, int numgbits)
-{
-    int bandno, empty = 1;
-
-    // init bitstream
-    *s->buf = 0;
-    s->bit_index = 0;
-
-    // header
-
-    // is the packet empty?
-    for (bandno = 0; bandno < rlevel->nbands; bandno++){
-        if (rlevel->band[bandno].coord[0][0] < rlevel->band[bandno].coord[0][1]
-        &&  rlevel->band[bandno].coord[1][0] < rlevel->band[bandno].coord[1][1]){
-            empty = 0;
-            break;
-        }
-    }
-
-    put_bits(s, !empty, 1);
-    if (empty){
-        j2k_flush(s);
-        return 0;
-    }
-
-    for (bandno = 0; bandno < rlevel->nbands; bandno++){
-        J2kBand *band = rlevel->band + bandno;
-        J2kPrec *prec = band->prec + precno;
-        int yi, xi, pos;
-        int cblknw = prec->xi1 - prec->xi0;
-
-        if (band->coord[0][0] == band->coord[0][1]
-        ||  band->coord[1][0] == band->coord[1][1])
-            continue;
-
-        for (pos=0, yi = prec->yi0; yi < prec->yi1; yi++){
-            for (xi = prec->xi0; xi < prec->xi1; xi++, pos++){
-                prec->cblkincl[pos].val = band->cblk[yi * cblknw + xi].ninclpasses == 0;
-                tag_tree_update(prec->cblkincl + pos);
-                prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - band->cblk[yi * cblknw + xi].nonzerobits;
-                tag_tree_update(prec->zerobits + pos);
-            }
-        }
-
-        for (pos=0, yi = prec->yi0; yi < prec->yi1; yi++){
-            for (xi = prec->xi0; xi < prec->xi1; xi++, pos++){
-                int pad = 0, llen, length;
-                J2kCblk *cblk = band->cblk + yi * cblknw + xi;
-
-                if (s->buf_end - s->buf < 20) // approximately
-                    return -1;
-
-                // inclusion information
-                tag_tree_code(s, prec->cblkincl + pos, 1);
-                if (!cblk->ninclpasses)
-                    continue;
-                // zerobits information
-                tag_tree_code(s, prec->zerobits + pos, 100);
-                // number of passes
-                putnumpasses(s, cblk->ninclpasses);
-
-                length = cblk->passes[cblk->ninclpasses-1].rate;
-                llen = av_log2(length) - av_log2(cblk->ninclpasses) - 2;
-                if (llen < 0){
-                    pad = -llen;
-                    llen = 0;
-                }
-                // length of code block
-                put_bits(s, 1, llen);
-                put_bits(s, 0, 1);
-                put_num(s, length, av_log2(length)+1+pad);
-            }
-        }
-    }
-    j2k_flush(s);
-    for (bandno = 0; bandno < rlevel->nbands; bandno++){
-        J2kBand *band = rlevel->band + bandno;
-        J2kPrec *prec = band->prec + precno;
-        int yi, cblknw = prec->xi1 - prec->xi0;
-        for (yi = prec->yi0; yi < prec->yi1; yi++){
-            int xi;
-            for (xi = prec->xi0; xi < prec->xi1; xi++){
-                J2kCblk *cblk = band->cblk + yi * cblknw + xi;
-                if (cblk->ninclpasses){
-                    if (s->buf_end - s->buf < cblk->passes[cblk->ninclpasses-1].rate)
-                        return -1;
-                    bytestream_put_buffer(&s->buf, cblk->data, cblk->passes[cblk->ninclpasses-1].rate);
-                }
-            }
-        }
-    }
-    return 0;
-}
-
-static int encode_packets(J2kEncoderContext *s, J2kTile *tile, int tileno)
-{
-    int compno, reslevelno, ret;
-    J2kCodingStyle *codsty = &s->codsty;
-    J2kQuantStyle  *qntsty = &s->qntsty;
-
-    av_log(s->avctx, AV_LOG_DEBUG, "tier2\n");
-    // lay-rlevel-comp-pos progression
-    for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
-        for (compno = 0; compno < s->ncomponents; compno++){
-            int precno;
-            J2kResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
-            for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
-                if (ret = encode_packet(s, reslevel, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
-                              qntsty->nguardbits))
-                    return ret;
-            }
-        }
-    }
-    av_log(s->avctx, AV_LOG_DEBUG, "after tier2\n");
-    return 0;
-}
-
-static int getcut(J2kCblk *cblk, int64_t lambda, int dwt_norm)
-{
-    int passno, res = 0;
-    for (passno = 0; passno < cblk->npasses; passno++){
-        int dr;
-        int64_t dd;
-
-        dr = cblk->passes[passno].rate
-           - (res ? cblk->passes[res-1].rate:0);
-        dd = cblk->passes[passno].disto
-           - (res ? cblk->passes[res-1].disto:0);
-
-        if (((dd * dwt_norm) >> WMSEDEC_SHIFT) * dwt_norm >= dr * lambda)
-            res = passno+1;
-    }
-    return res;
-}
-
-static void truncpasses(J2kEncoderContext *s, J2kTile *tile)
-{
-    int compno, reslevelno, bandno, cblkno, lev;
-    J2kCodingStyle *codsty = &s->codsty;
-
-    for (compno = 0; compno < s->ncomponents; compno++){
-        J2kComponent *comp = tile->comp + compno;
-
-        for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
-            J2kResLevel *reslevel = comp->reslevel + reslevelno;
-
-            for (bandno = 0; bandno < reslevel->nbands ; bandno++){
-                int bandpos = bandno + (reslevelno > 0);
-                J2kBand *band = reslevel->band + bandno;
-
-                for (cblkno = 0; cblkno < band->cblknx * band->cblkny; cblkno++){
-                    J2kCblk *cblk = band->cblk + cblkno;
-
-                    cblk->ninclpasses = getcut(cblk, s->lambda,
-                            (int64_t)dwt_norms[codsty->transform][bandpos][lev] * (int64_t)band->stepsize >> 13);
-                }
-            }
-        }
-    }
-}
-
-static int encode_tile(J2kEncoderContext *s, J2kTile *tile, int tileno)
-{
-    int compno, reslevelno, bandno, ret;
-    J2kT1Context t1;
-    J2kCodingStyle *codsty = &s->codsty;
-    for (compno = 0; compno < s->ncomponents; compno++){
-        J2kComponent *comp = s->tile[tileno].comp + compno;
-
-        av_log(s->avctx, AV_LOG_DEBUG,"dwt\n");
-        if (ret = ff_j2k_dwt_encode(&comp->dwt, comp->data))
-            return ret;
-        av_log(s->avctx, AV_LOG_DEBUG,"after dwt -> tier1\n");
-
-        for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
-            J2kResLevel *reslevel = comp->reslevel + reslevelno;
-
-            for (bandno = 0; bandno < reslevel->nbands ; bandno++){
-                J2kBand *band = reslevel->band + bandno;
-                int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
-                yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
-                y0 = yy0;
-                yy1 = FFMIN(ff_j2k_ceildiv(band->coord[1][0] + 1, band->codeblock_height) * band->codeblock_height,
-                            band->coord[1][1]) - band->coord[1][0] + yy0;
-
-                if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
-                    continue;
-
-                bandpos = bandno + (reslevelno > 0);
-
-                for (cblky = 0; cblky < band->cblkny; cblky++){
-                    if (reslevelno == 0 || bandno == 1)
-                        xx0 = 0;
-                    else
-                        xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
-                    x0 = xx0;
-                    xx1 = FFMIN(ff_j2k_ceildiv(band->coord[0][0] + 1, band->codeblock_width) * band->codeblock_width,
-                                band->coord[0][1]) - band->coord[0][0] + xx0;
-
-                    for (cblkx = 0; cblkx < band->cblknx; cblkx++, cblkno++){
-                        int y, x;
-                        if (codsty->transform == FF_DWT53){
-                            for (y = yy0; y < yy1; y++){
-                                int *ptr = t1.data[y-yy0];
-                                for (x = xx0; x < xx1; x++){
-                                    *ptr++ = comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] << NMSEDEC_FRACBITS;
-                                }
-                            }
-                        } else{
-                            for (y = yy0; y < yy1; y++){
-                                int *ptr = t1.data[y-yy0];
-                                for (x = xx0; x < xx1; x++){
-                                    *ptr = (comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);
-                                    *ptr = (int64_t)*ptr * (int64_t)(8192 * 8192 / band->stepsize) >> 13 - NMSEDEC_FRACBITS;
-                                    ptr++;
-                                }
-                            }
-                        }
-                        encode_cblk(s, &t1, band->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
-                                    bandpos, codsty->nreslevels - reslevelno - 1);
-                        xx0 = xx1;
-                        xx1 = FFMIN(xx1 + band->codeblock_width, band->coord[0][1] - band->coord[0][0] + x0);
-                    }
-                    yy0 = yy1;
-                    yy1 = FFMIN(yy1 + band->codeblock_height, band->coord[1][1] - band->coord[1][0] + y0);
-                }
-            }
-        }
-        av_log(s->avctx, AV_LOG_DEBUG, "after tier1\n");
-    }
-
-    av_log(s->avctx, AV_LOG_DEBUG, "rate control\n");
-    truncpasses(s, tile);
-    if (ret = encode_packets(s, tile, tileno))
-        return ret;
-    av_log(s->avctx, AV_LOG_DEBUG, "after rate control\n");
-    return 0;
-}
-
-static void cleanup(J2kEncoderContext *s)
-{
-    int tileno, compno;
-    J2kCodingStyle *codsty = &s->codsty;
-
-    for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
-        for (compno = 0; compno < s->ncomponents; compno++){
-            J2kComponent *comp = s->tile[tileno].comp + compno;
-            ff_j2k_cleanup(comp, codsty);
-        }
-        av_freep(&s->tile[tileno].comp);
-    }
-    av_freep(&s->tile);
-}
-
-static void reinit(J2kEncoderContext *s)
-{
-    int tileno, compno;
-    for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
-        J2kTile *tile = s->tile + tileno;
-        for (compno = 0; compno < s->ncomponents; compno++)
-            ff_j2k_reinit(tile->comp + compno, &s->codsty);
-    }
-}
-
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-                        const AVFrame *pict, int *got_packet)
-{
-    int tileno, ret;
-    J2kEncoderContext *s = avctx->priv_data;
-
-    if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*9 + FF_MIN_BUFFER_SIZE)) < 0)
-        return ret;
-
-    // init:
-    s->buf = s->buf_start = pkt->data;
-    s->buf_end = pkt->data + pkt->size;
-
-    s->picture = *pict;
-    avctx->coded_frame= &s->picture;
-
-    s->lambda = s->picture.quality * LAMBDA_SCALE;
-
-    copy_frame(s);
-    reinit(s);
-
-    if (s->buf_end - s->buf < 2)
-        return -1;
-    bytestream_put_be16(&s->buf, J2K_SOC);
-    if (ret = put_siz(s))
-        return ret;
-    if (ret = put_cod(s))
-        return ret;
-    if (ret = put_qcd(s, 0))
-        return ret;
-
-    for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
-        uint8_t *psotptr;
-        if (!(psotptr = put_sot(s, tileno)))
-            return -1;
-        if (s->buf_end - s->buf < 2)
-            return -1;
-        bytestream_put_be16(&s->buf, J2K_SOD);
-        if (ret = encode_tile(s, s->tile + tileno, tileno))
-            return ret;
-        bytestream_put_be32(&psotptr, s->buf - psotptr + 6);
-    }
-    if (s->buf_end - s->buf < 2)
-        return -1;
-    bytestream_put_be16(&s->buf, J2K_EOC);
-
-    av_log(s->avctx, AV_LOG_DEBUG, "end\n");
-    pkt->size = s->buf - s->buf_start;
-    pkt->flags |= AV_PKT_FLAG_KEY;
-    *got_packet = 1;
-
-    return 0;
-}
-
-static av_cold int j2kenc_init(AVCodecContext *avctx)
-{
-    int i, ret;
-    J2kEncoderContext *s = avctx->priv_data;
-    J2kCodingStyle *codsty = &s->codsty;
-    J2kQuantStyle  *qntsty = &s->qntsty;
-
-    s->avctx = avctx;
-    av_log(s->avctx, AV_LOG_DEBUG, "init\n");
-
-    // defaults:
-    // TODO: implement setting non-standard precinct size
-    codsty->log2_prec_width  = 15;
-    codsty->log2_prec_height = 15;
-    codsty->nreslevels       = 7;
-    codsty->log2_cblk_width  = 4;
-    codsty->log2_cblk_height = 4;
-    codsty->transform        = 1;
-
-    qntsty->nguardbits       = 1;
-
-    s->tile_width            = 256;
-    s->tile_height           = 256;
-
-    if (codsty->transform == FF_DWT53)
-        qntsty->quantsty = J2K_QSTY_NONE;
-    else
-        qntsty->quantsty = J2K_QSTY_SE;
-
-    s->width = avctx->width;
-    s->height = avctx->height;
-
-    for (i = 0; i < 3; i++)
-        s->cbps[i] = 8;
-
-    if (avctx->pix_fmt == AV_PIX_FMT_RGB24){
-        s->ncomponents = 3;
-    } else if (avctx->pix_fmt == AV_PIX_FMT_GRAY8){
-        s->ncomponents = 1;
-    } else{ // planar YUV
-        s->planar = 1;
-        s->ncomponents = 3;
-        avcodec_get_chroma_sub_sample(avctx->pix_fmt,
-                s->chroma_shift, s->chroma_shift + 1);
-    }
-
-    ff_j2k_init_tier1_luts();
-
-    init_luts();
-
-    init_quantization(s);
-    if (ret=init_tiles(s))
-        return ret;
-
-    av_log(s->avctx, AV_LOG_DEBUG, "after init\n");
-
-    return 0;
-}
-
-static int j2kenc_destroy(AVCodecContext *avctx)
-{
-    J2kEncoderContext *s = avctx->priv_data;
-
-    cleanup(s);
-    return 0;
-}
-
-AVCodec ff_jpeg2000_encoder = {
-    .name           = "j2k",
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_JPEG2000,
-    .priv_data_size = sizeof(J2kEncoderContext),
-    .init           = j2kenc_init,
-    .encode2        = encode_frame,
-    .close          = j2kenc_destroy,
-    .capabilities   = CODEC_CAP_EXPERIMENTAL,
-    .long_name      = NULL_IF_CONFIG_SMALL("JPEG 2000"),
-    .pix_fmts       = (const enum AVPixelFormat[]) {
-        AV_PIX_FMT_RGB24, AV_PIX_FMT_YUV444P, AV_PIX_FMT_GRAY8,
-/*      AV_PIX_FMT_YUV420P,
-        AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
-        AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,*/
-        AV_PIX_FMT_NONE
-    }
-};