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j2kenc: switch to cblk in prec

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/23/head
Michael Niedermayer 12 years ago
parent 9fd23baa74
commit cbaa0871c2
1 changed files with 16 additions and 13 deletions
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  1. 29
      libavcodec/j2kenc.c

29
libavcodec/j2kenc.c
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@ -676,9 +676,9 @@ static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, in
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;
prec->cblkincl[pos].val = prec->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;
prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - prec->cblk[yi * cblknw + xi].nonzerobits;
tag_tree_update(prec->zerobits + pos);
}
}
@ -686,7 +686,7 @@ static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, in
for (pos=0, yi = prec->yi0; yi < prec->yi1; yi++){
for (xi = prec->xi0; xi < prec->xi1; xi++, pos++){
int pad = 0, llen, length;
Jpeg2000Cblk *cblk = band->cblk + yi * cblknw + xi;
Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
if (s->buf_end - s->buf < 20) // approximately
return -1;
@ -721,7 +721,7 @@ static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, in
for (yi = prec->yi0; yi < prec->yi1; yi++){
int xi;
for (xi = prec->xi0; xi < prec->xi1; xi++){
Jpeg2000Cblk *cblk = band->cblk + yi * cblknw + xi;
Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
if (cblk->ninclpasses){
if (s->buf_end - s->buf < cblk->passes[cblk->ninclpasses-1].rate)
return -1;
@ -776,7 +776,7 @@ static int getcut(Jpeg2000Cblk *cblk, int64_t lambda, int dwt_norm)
static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
{
int compno, reslevelno, bandno, cblkno, lev;
int precno, compno, reslevelno, bandno, cblkno, lev;
Jpeg2000CodingStyle *codsty = &s->codsty;
for (compno = 0; compno < s->ncomponents; compno++){
@ -785,15 +785,18 @@ static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
for (bandno = 0; bandno < reslevel->nbands ; bandno++){
int bandpos = bandno + (reslevelno > 0);
Jpeg2000Band *band = reslevel->band + bandno;
for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
for (bandno = 0; bandno < reslevel->nbands ; bandno++){
int bandpos = bandno + (reslevelno > 0);
Jpeg2000Band *band = reslevel->band + bandno;
Jpeg2000Prec *prec = band->prec + precno;
for (cblkno = 0; cblkno < band->cblknx * band->cblkny; cblkno++){
Jpeg2000Cblk *cblk = band->cblk + cblkno;
for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
Jpeg2000Cblk *cblk = prec->cblk + cblkno;
cblk->ninclpasses = getcut(cblk, s->lambda,
(int64_t)dwt_norms[codsty->transform][bandpos][lev] * (int64_t)band->stepsize >> 13);
cblk->ninclpasses = getcut(cblk, s->lambda,
(int64_t)dwt_norms[codsty->transform][bandpos][lev] * (int64_t)band->stepsize >> 13);
}
}
}
}
@ -857,7 +860,7 @@ static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno
}
}
}
encode_cblk(s, &t1, band->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
encode_cblk(s, &t1, band->prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
bandpos, codsty->nreslevels - reslevelno - 1);
xx0 = xx1;
xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);

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