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(band->cblknx * band->cblkny * sizeof(J2kCblk));

            if (!band->cblk)

                return AVERROR(ENOMEM);

            band->prec = av_malloc(reslevel->num_precincts_x * reslevel->num_precincts_y * sizeof(J2kPrec));

            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<<codsty->log2_prec_height)) & ~((1<<codsty->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<<codsty->log2_prec_width)) & ~((1<<codsty->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;

}

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){  

                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(band->cblknx * band->cblkny * sizeof(J2kCblk));

            if (!band->cblk)

                return AVERROR(ENOMEM);

            band->prec = av_malloc(reslevel->num_precincts_x * reslevel->num_precincts_y * sizeof(J2kPrec));

            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<<codsty->log2_prec_height)) & ~((1<<codsty->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<<codsty->log2_prec_width)) & ~((1<<codsty->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;

}

            band->cblk = av_malloc(band->cblknx * band->cblkny * sizeof(J2kCblk));
int FUNC_0(J2kComponent *VAR_0, J2kCodingStyle *VAR_1, J2kQuantStyle *VAR_2, int VAR_3, int VAR_4, int VAR_5)

{

    int VAR_6, VAR_7, VAR_8 = 0, VAR_9, VAR_10, VAR_11, VAR_12 = 1;



    if (VAR_9=ff_j2k_dwt_init(&VAR_0->dwt, VAR_0->coord, VAR_1->nreslevels-1, VAR_1->transform))

        return VAR_9;

    for (VAR_10 = 0; VAR_10 < 2; VAR_10++)

        VAR_12 *= VAR_0->coord[VAR_10][1] - VAR_0->coord[VAR_10][0];



    VAR_0->data = av_malloc(VAR_12 * sizeof(int));

    if (!VAR_0->data)

        return AVERROR(ENOMEM);

    VAR_0->reslevel = av_malloc(VAR_1->nreslevels * sizeof(J2kResLevel));



    if (!VAR_0->reslevel)

        return AVERROR(ENOMEM);

    for (VAR_6 = 0; VAR_6 < VAR_1->nreslevels; VAR_6++){

        int declvl = VAR_1->nreslevels - VAR_6;

        J2kResLevel *reslevel = VAR_0->reslevel + VAR_6;



        for (VAR_10 = 0; VAR_10 < 2; VAR_10++)

            for (VAR_11 = 0; VAR_11 < 2; VAR_11++)

                reslevel->coord[VAR_10][VAR_11] =

                    ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11], declvl - 1);



        if (VAR_6 == 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], VAR_1->log2_prec_width)

                                        - (reslevel->coord[0][0] >> VAR_1->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], VAR_1->log2_prec_height)

                                        - (reslevel->coord[1][0] >> VAR_1->log2_prec_height);



        reslevel->band = av_malloc(reslevel->nbands * sizeof(J2kBand));

        if (!reslevel->band)

            return AVERROR(ENOMEM);

        for (VAR_7 = 0; VAR_7 < reslevel->nbands; VAR_7++, VAR_8++){

            J2kBand *band = reslevel->band + VAR_7;

            int cblkno, precx, precy, precno;

            int x0, y0, x1, y1;

            int xi0, yi0, xi1, yi1;

            int cblkperprecw, cblkperprech;



            if (VAR_2->quantsty != J2K_QSTY_NONE){

                static const uint8_t lut_gain[2][4] = {{0, 0, 0, 0}, {0, 1, 1, 2}};

                int numbps;



                numbps = VAR_3 + lut_gain[VAR_1->transform][VAR_7 + VAR_6>0];

                band->stepsize = SHL(2048 + VAR_2->mant[VAR_8], 2 + numbps - VAR_2->expn[VAR_8]);

            } else

                band->stepsize = 1 << 13;



            if (VAR_6 == 0){  

                band->codeblock_width = 1 << FFMIN(VAR_1->log2_cblk_width, VAR_1->log2_prec_width-1);

                band->codeblock_height = 1 << FFMIN(VAR_1->log2_cblk_height, VAR_1->log2_prec_height-1);

                for (VAR_10 = 0; VAR_10 < 2; VAR_10++)

                    for (VAR_11 = 0; VAR_11 < 2; VAR_11++)

                        band->coord[VAR_10][VAR_11] = ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11], declvl-1);

            } else{

                band->codeblock_width = 1 << FFMIN(VAR_1->log2_cblk_width, VAR_1->log2_prec_width);

                band->codeblock_height = 1 << FFMIN(VAR_1->log2_cblk_height, VAR_1->log2_prec_height);



                for (VAR_10 = 0; VAR_10 < 2; VAR_10++)

                    for (VAR_11 = 0; VAR_11 < 2; VAR_11++)

                        band->coord[VAR_10][VAR_11] = ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11] - (((VAR_7+1>>VAR_10)&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 (VAR_11 = 0; VAR_11 < 2; VAR_11++)

                band->coord[0][VAR_11] = ff_j2k_ceildiv(band->coord[0][VAR_11], VAR_4);

            for (VAR_11 = 0; VAR_11 < 2; VAR_11++)

                band->coord[1][VAR_11] = ff_j2k_ceildiv(band->coord[1][VAR_11], VAR_5);



            band->cblknx = ff_j2k_ceildiv(band->cblknx, VAR_4);

            band->cblkny = ff_j2k_ceildiv(band->cblkny, VAR_5);



            band->cblk = av_malloc(band->cblknx * band->cblkny * sizeof(J2kCblk));

            if (!band->cblk)

                return AVERROR(ENOMEM);

            band->prec = av_malloc(reslevel->num_precincts_x * reslevel->num_precincts_y * sizeof(J2kPrec));

            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<<VAR_1->log2_prec_height)) & ~((1<<VAR_1->log2_prec_height)-1)) - y0;

            yi0 = 0;

            yi1 = ff_j2k_ceildivpow2(y1 - y0, VAR_1->log2_cblk_height) << VAR_1->log2_cblk_height;

            yi1 = FFMIN(yi1, band->cblkny);

            cblkperprech = 1<<(VAR_1->log2_prec_height - VAR_1->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<<VAR_1->log2_prec_width)) & ~((1<<VAR_1->log2_prec_width)-1)) - x0;

            xi0 = 0;

            xi1 = ff_j2k_ceildivpow2(x1 - x0, VAR_1->log2_cblk_width) << VAR_1->log2_cblk_width;

            xi1 = FFMIN(xi1, band->cblknx);



            cblkperprecw = 1<<(VAR_1->log2_prec_width - VAR_1->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;

}

int FUNC_0(J2kComponent *VAR_0, J2kCodingStyle *VAR_1, J2kQuantStyle *VAR_2, int VAR_3, int VAR_4, int VAR_5)
{ int VAR_6, VAR_7, VAR_8 = 0, VAR_9, VAR_10, VAR_11, VAR_12 = 1; if (VAR_9=ff_j2k_dwt_init(&VAR_0->dwt, VAR_0->coord, VAR_1->nreslevels-1, VAR_1->transform))
return VAR_9; for (VAR_10 = 0; VAR_10 < 2; VAR_10++) VAR_12 *= VAR_0->coord[VAR_10][1] - VAR_0->coord[VAR_10][0]; VAR_0->data = av_malloc(VAR_12 * sizeof(int)); if (!VAR_0->data)
return AVERROR(ENOMEM); VAR_0->reslevel = av_malloc(VAR_1->nreslevels * sizeof(J2kResLevel)); if (!VAR_0->reslevel)
return AVERROR(ENOMEM); for (VAR_6 = 0; VAR_6 < VAR_1->nreslevels; VAR_6++){ int declvl = VAR_1->nreslevels - VAR_6; J2kResLevel *reslevel = VAR_0->reslevel + VAR_6; for (VAR_10 = 0; VAR_10 < 2; VAR_10++) for (VAR_11 = 0; VAR_11 < 2; VAR_11++) reslevel->coord[VAR_10][VAR_11] =
ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11], declvl - 1); if (VAR_6 == 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], VAR_1->log2_prec_width)
- (reslevel->coord[0][0] >> VAR_1->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], VAR_1->log2_prec_height)
- (reslevel->coord[1][0] >> VAR_1->log2_prec_height); reslevel->band = av_malloc(reslevel->nbands * sizeof(J2kBand)); if (!reslevel->band)
return AVERROR(ENOMEM); for (VAR_7 = 0; VAR_7 < reslevel->nbands; VAR_7++, VAR_8++){ J2kBand *band = reslevel->band + VAR_7; int cblkno, precx, precy, precno; int x0, y0, x1, y1; int xi0, yi0, xi1, yi1; int cblkperprecw, cblkperprech; if (VAR_2->quantsty != J2K_QSTY_NONE){ static const uint8_t lut_gain[2][4] = {{0, 0, 0, 0}, {0, 1, 1, 2}}; int numbps; numbps = VAR_3 + lut_gain[VAR_1->transform][VAR_7 + VAR_6>0]; band->stepsize = SHL(2048 + VAR_2->mant[VAR_8], 2 + numbps - VAR_2->expn[VAR_8]); } else band->stepsize = 1 << 13; if (VAR_6 == 0){ band->codeblock_width = 1 << FFMIN(VAR_1->log2_cblk_width, VAR_1->log2_prec_width-1); band->codeblock_height = 1 << FFMIN(VAR_1->log2_cblk_height, VAR_1->log2_prec_height-1); for (VAR_10 = 0; VAR_10 < 2; VAR_10++) for (VAR_11 = 0; VAR_11 < 2; VAR_11++) band->coord[VAR_10][VAR_11] = ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11], declvl-1); } else{ band->codeblock_width = 1 << FFMIN(VAR_1->log2_cblk_width, VAR_1->log2_prec_width); band->codeblock_height = 1 << FFMIN(VAR_1->log2_cblk_height, VAR_1->log2_prec_height); for (VAR_10 = 0; VAR_10 < 2; VAR_10++) for (VAR_11 = 0; VAR_11 < 2; VAR_11++) band->coord[VAR_10][VAR_11] = ff_j2k_ceildivpow2(VAR_0->coord[VAR_10][VAR_11] - (((VAR_7+1>>VAR_10)&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 (VAR_11 = 0; VAR_11 < 2; VAR_11++) band->coord[0][VAR_11] = ff_j2k_ceildiv(band->coord[0][VAR_11], VAR_4); for (VAR_11 = 0; VAR_11 < 2; VAR_11++) band->coord[1][VAR_11] = ff_j2k_ceildiv(band->coord[1][VAR_11], VAR_5); band->cblknx = ff_j2k_ceildiv(band->cblknx, VAR_4); band->cblkny = ff_j2k_ceildiv(band->cblkny, VAR_5); band->cblk = av_malloc(band->cblknx * band->cblkny * sizeof(J2kCblk)); if (!band->cblk)
return AVERROR(ENOMEM); band->prec = av_malloc(reslevel->num_precincts_x * reslevel->num_precincts_y * sizeof(J2kPrec)); 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<<VAR_1->log2_prec_height)) & ~((1<<VAR_1->log2_prec_height)-1)) - y0; yi0 = 0; yi1 = ff_j2k_ceildivpow2(y1 - y0, VAR_1->log2_cblk_height) << VAR_1->log2_cblk_height; yi1 = FFMIN(yi1, band->cblkny); cblkperprech = 1<<(VAR_1->log2_prec_height - VAR_1->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<<VAR_1->log2_prec_width)) & ~((1<<VAR_1->log2_prec_width)-1)) - x0; xi0 = 0; xi1 = ff_j2k_ceildivpow2(x1 - x0, VAR_1->log2_cblk_width) << VAR_1->log2_cblk_width; xi1 = FFMIN(xi1, band->cblknx); cblkperprecw = 1<<(VAR_1->log2_prec_width - VAR_1->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; }