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j2k/jpeg2000: merge cosmetics and whitespace

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-26 18:32:11 +02:00
parent bcf59b5d8f
commit de90bd6c3f
2 changed files with 112 additions and 112 deletions
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212
libavcodec/j2kdec.c
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@ -48,39 +48,39 @@ typedef struct {
Jpeg2000QuantStyle qntsty[4]; Jpeg2000QuantStyle qntsty[4];
} Jpeg2000Tile; } Jpeg2000Tile;
typedef struct { typedef struct Jpeg2000DecoderContext {
AVCodecContext *avctx; AVCodecContext *avctx;
AVFrame *picture; AVFrame *picture;
GetByteContext g; GetByteContext g;
int width, height; ///< image width and height int width, height;
int image_offset_x, image_offset_y; int image_offset_x, image_offset_y;
int tile_offset_x, tile_offset_y; int tile_offset_x, tile_offset_y;
uint8_t cbps[4]; ///< bits per sample in particular components uint8_t cbps[4]; // bits per sample in particular components
uint8_t sgnd[4]; ///< if a component is signed uint8_t sgnd[4]; // if a component is signed
uint8_t properties[4]; uint8_t properties[4];
int cdx[4], cdy[4]; int cdx[4], cdy[4];
int precision; int precision;
int ncomponents; int ncomponents;
int tile_width, tile_height; ///< tile size int tile_width, tile_height;
int numXtiles, numYtiles; int numXtiles, numYtiles;
int maxtilelen; int maxtilelen;
Jpeg2000CodingStyle codsty[4]; Jpeg2000CodingStyle codsty[4];
Jpeg2000QuantStyle qntsty[4]; Jpeg2000QuantStyle qntsty[4];
int bit_index; int bit_index;
int curtileno; int curtileno;
Jpeg2000Tile *tile; Jpeg2000Tile *tile;
} Jpeg2000DecoderContext; } Jpeg2000DecoderContext;
static int get_bits(Jpeg2000DecoderContext *s, int n) static int get_bits(Jpeg2000DecoderContext *s, int n)
{ {
int res = 0; int res = 0;
while (--n >= 0){ while (--n >= 0) {
res <<= 1; res <<= 1;
if (s->bit_index == 0) { if (s->bit_index == 0) {
s->bit_index = 7 + (bytestream2_get_byte(&s->g) != 0xFFu); s->bit_index = 7 + (bytestream2_get_byte(&s->g) != 0xFFu);
@ -107,7 +107,7 @@ void printcomp(Jpeg2000Component *comp)
static void nspaces(FILE *fd, int n) static void nspaces(FILE *fd, int n)
{ {
while(n--) putc(' ', fd); while (n--) putc(' ', fd);
} }
static void dump(Jpeg2000DecoderContext *s, FILE *fd) static void dump(Jpeg2000DecoderContext *s, FILE *fd)
@ -118,18 +118,18 @@ static void dump(Jpeg2000DecoderContext *s, FILE *fd)
"tiles:\n", "tiles:\n",
s->width, s->height, s->tile_width, s->tile_height, s->width, s->height, s->tile_width, s->tile_height,
s->numXtiles, s->numYtiles, s->ncomponents); s->numXtiles, s->numYtiles, s->ncomponents);
for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) {
Jpeg2000Tile *tile = s->tile + tileno; Jpeg2000Tile *tile = s->tile + tileno;
nspaces(fd, 2); nspaces(fd, 2);
fprintf(fd, "tile %d:\n", tileno); fprintf(fd, "tile %d:\n", tileno);
for(compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = tile->comp + compno; Jpeg2000Component *comp = tile->comp + compno;
nspaces(fd, 4); nspaces(fd, 4);
fprintf(fd, "component %d:\n", compno); fprintf(fd, "component %d:\n", compno);
nspaces(fd, 4); nspaces(fd, 4);
fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n", fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
comp->x0, comp->x1, comp->y0, comp->y1); comp->x0, comp->x1, comp->y0, comp->y1);
for(reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno; Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
nspaces(fd, 6); nspaces(fd, 6);
fprintf(fd, "reslevel %d:\n", reslevelno); fprintf(fd, "reslevel %d:\n", reslevelno);
@ -137,7 +137,7 @@ static void dump(Jpeg2000DecoderContext *s, FILE *fd)
fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n", fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
reslevel->x0, reslevel->x1, reslevel->y0, reslevel->x0, reslevel->x1, reslevel->y0,
reslevel->y1, reslevel->nbands); reslevel->y1, reslevel->nbands);
for(bandno = 0; bandno < reslevel->nbands; bandno++){ for (bandno = 0; bandno < reslevel->nbands; bandno++) {
Jpeg2000Band *band = reslevel->band + bandno; Jpeg2000Band *band = reslevel->band + bandno;
nspaces(fd, 8); nspaces(fd, 8);
fprintf(fd, "band %d:\n", bandno); fprintf(fd, "band %d:\n", bandno);
@ -148,7 +148,7 @@ static void dump(Jpeg2000DecoderContext *s, FILE *fd)
band->y0, band->y1, band->y0, band->y1,
band->codeblock_width, band->codeblock_height, band->codeblock_width, band->codeblock_height,
band->cblknx, band->cblkny); band->cblknx, band->cblkny);
for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){ for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++) {
Jpeg2000Prec *prec = band->prec + precno; Jpeg2000Prec *prec = band->prec + precno;
nspaces(fd, 10); nspaces(fd, 10);
fprintf(fd, "prec %d:\n", precno); fprintf(fd, "prec %d:\n", precno);
@ -169,10 +169,10 @@ static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node, int
Jpeg2000TgtNode *stack[30]; Jpeg2000TgtNode *stack[30];
int sp = -1, curval = 0; int sp = -1, curval = 0;
if(!node) if (!node)
return AVERROR(EINVAL); return AVERROR(EINVAL);
while(node && !node->vis){ while (node && !node->vis) {
stack[++sp] = node; stack[++sp] = node;
node = node->parent; node = node->parent;
} }
@ -182,12 +182,12 @@ static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node, int
else else
curval = stack[sp]->val; curval = stack[sp]->val;
while(curval < threshold && sp >= 0){ while (curval < threshold && sp >= 0) {
if (curval < stack[sp]->val) if (curval < stack[sp]->val)
curval = stack[sp]->val; curval = stack[sp]->val;
while (curval < threshold){ while (curval < threshold) {
int ret; int ret;
if ((ret = get_bits(s, 1)) > 0){ if ((ret = get_bits(s, 1)) > 0) {
stack[sp]->vis++; stack[sp]->vis++;
break; break;
} else if (!ret) } else if (!ret)
@ -223,17 +223,17 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz
s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz
if(s->ncomponents <= 0 || s->ncomponents > 4) { if (s->ncomponents <= 0 || s->ncomponents > 4) {
av_log(s->avctx, AV_LOG_ERROR, "unsupported/invalid ncomponents: %d\n", s->ncomponents); av_log(s->avctx, AV_LOG_ERROR, "unsupported/invalid ncomponents: %d\n", s->ncomponents);
return AVERROR(EINVAL); return AVERROR(EINVAL);
} }
if(s->tile_width<=0 || s->tile_height<=0) if (s->tile_width<=0 || s->tile_height<=0)
return AVERROR(EINVAL); return AVERROR(EINVAL);
if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents) if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents)
return AVERROR(EINVAL); return AVERROR(EINVAL);
for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i for (i = 0; i < s->ncomponents; i++) { // Ssiz_i XRsiz_i, YRsiz_i
uint8_t x = bytestream2_get_byteu(&s->g); uint8_t x = bytestream2_get_byteu(&s->g);
s->cbps[i] = (x & 0x7f) + 1; s->cbps[i] = (x & 0x7f) + 1;
s->precision = FFMAX(s->cbps[i], s->precision); s->precision = FFMAX(s->cbps[i], s->precision);
@ -245,14 +245,14 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width); s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width);
s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height); s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height);
if(s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile)) if (s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile))
return AVERROR(EINVAL); return AVERROR(EINVAL);
s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(Jpeg2000Tile)); s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(Jpeg2000Tile));
if (!s->tile) if (!s->tile)
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
for (i = 0; i < s->numXtiles * s->numYtiles; i++){ for (i = 0; i < s->numXtiles * s->numYtiles; i++) {
Jpeg2000Tile *tile = s->tile + i; Jpeg2000Tile *tile = s->tile + i;
tile->comp = av_mallocz(s->ncomponents * sizeof(Jpeg2000Component)); tile->comp = av_mallocz(s->ncomponents * sizeof(Jpeg2000Component));
@ -263,7 +263,7 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->avctx->width = s->width - s->image_offset_x; s->avctx->width = s->width - s->image_offset_x;
s->avctx->height = s->height - s->image_offset_y; s->avctx->height = s->height - s->image_offset_y;
switch(s->ncomponents){ switch(s->ncomponents) {
case 1: case 1:
if (s->precision > 8) { if (s->precision > 8) {
s->avctx->pix_fmt = AV_PIX_FMT_GRAY16; s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
@ -303,7 +303,7 @@ static int get_cox(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c)
c->log2_cblk_height = bytestream2_get_byteu(&s->g) + 2; // cblk height c->log2_cblk_height = bytestream2_get_byteu(&s->g) + 2; // cblk height
c->cblk_style = bytestream2_get_byteu(&s->g); c->cblk_style = bytestream2_get_byteu(&s->g);
if (c->cblk_style != 0){ // cblk style if (c->cblk_style != 0) { // cblk style
av_log(s->avctx, AV_LOG_WARNING, "extra cblk styles %X\n", c->cblk_style); av_log(s->avctx, AV_LOG_WARNING, "extra cblk styles %X\n", c->cblk_style);
} }
c->transform = bytestream2_get_byteu(&s->g); // transformation c->transform = bytestream2_get_byteu(&s->g); // transformation
@ -332,7 +332,7 @@ static int get_cod(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, uint8_t *p
// get progression order // get progression order
tmp.prog_order = bytestream2_get_byteu(&s->g); tmp.prog_order = bytestream2_get_byteu(&s->g);
if (tmp.prog_order){ if (tmp.prog_order) {
av_log(s->avctx, AV_LOG_ERROR, "only LRCP progression supported\n"); av_log(s->avctx, AV_LOG_ERROR, "only LRCP progression supported\n");
} }
@ -340,7 +340,7 @@ static int get_cod(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, uint8_t *p
tmp.mct = bytestream2_get_byteu(&s->g); // multiple component transformation tmp.mct = bytestream2_get_byteu(&s->g); // multiple component transformation
get_cox(s, &tmp); get_cox(s, &tmp);
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
if (!(properties[compno] & HAD_COC)) if (!(properties[compno] & HAD_COC))
memcpy(c + compno, &tmp, sizeof(Jpeg2000CodingStyle)); memcpy(c + compno, &tmp, sizeof(Jpeg2000CodingStyle));
} }
@ -378,19 +378,19 @@ static int get_qcx(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q)
q->nguardbits = x >> 5; q->nguardbits = x >> 5;
q->quantsty = x & 0x1f; q->quantsty = x & 0x1f;
if (q->quantsty == JPEG2000_QSTY_NONE){ if (q->quantsty == JPEG2000_QSTY_NONE) {
n -= 3; n -= 3;
if (bytestream2_get_bytes_left(&s->g) < n || 32*3 < n) if (bytestream2_get_bytes_left(&s->g) < n || 32*3 < n)
return AVERROR(EINVAL); return AVERROR(EINVAL);
for (i = 0; i < n; i++) for (i = 0; i < n; i++)
q->expn[i] = bytestream2_get_byteu(&s->g) >> 3; q->expn[i] = bytestream2_get_byteu(&s->g) >> 3;
} else if (q->quantsty == JPEG2000_QSTY_SI){ } else if (q->quantsty == JPEG2000_QSTY_SI) {
if (bytestream2_get_bytes_left(&s->g) < 2) if (bytestream2_get_bytes_left(&s->g) < 2)
return AVERROR(EINVAL); return AVERROR(EINVAL);
x = bytestream2_get_be16u(&s->g); x = bytestream2_get_be16u(&s->g);
q->expn[0] = x >> 11; q->expn[0] = x >> 11;
q->mant[0] = x & 0x7ff; q->mant[0] = x & 0x7ff;
for (i = 1; i < 32 * 3; i++){ for (i = 1; i < 32 * 3; i++) {
int curexpn = FFMAX(0, q->expn[0] - (i-1)/3); int curexpn = FFMAX(0, q->expn[0] - (i-1)/3);
q->expn[i] = curexpn; q->expn[i] = curexpn;
q->mant[i] = q->mant[0]; q->mant[i] = q->mant[0];
@ -399,7 +399,7 @@ static int get_qcx(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q)
n = (n - 3) >> 1; n = (n - 3) >> 1;
if (bytestream2_get_bytes_left(&s->g) < 2 * n || 32*3 < n) if (bytestream2_get_bytes_left(&s->g) < 2 * n || 32*3 < n)
return AVERROR(EINVAL); return AVERROR(EINVAL);
for (i = 0; i < n; i++){ for (i = 0; i < n; i++) {
x = bytestream2_get_be16u(&s->g); x = bytestream2_get_be16u(&s->g);
q->expn[i] = x >> 11; q->expn[i] = x >> 11;
q->mant[i] = x & 0x7ff; q->mant[i] = x & 0x7ff;
@ -442,14 +442,14 @@ static int get_sot(Jpeg2000DecoderContext *s)
return AVERROR(EINVAL); return AVERROR(EINVAL);
s->curtileno = bytestream2_get_be16u(&s->g); ///< Isot s->curtileno = bytestream2_get_be16u(&s->g); ///< Isot
if((unsigned)s->curtileno >= s->numXtiles * s->numYtiles){ if ((unsigned)s->curtileno >= s->numXtiles * s->numYtiles) {
s->curtileno=0; s->curtileno=0;
return AVERROR(EINVAL); return AVERROR(EINVAL);
} }
bytestream2_skipu(&s->g, 4); ///< Psot (ignored) bytestream2_skipu(&s->g, 4); ///< Psot (ignored)
if (!bytestream2_get_byteu(&s->g)){ ///< TPsot if (!bytestream2_get_byteu(&s->g)) { ///< TPsot
Jpeg2000Tile *tile = s->tile + s->curtileno; Jpeg2000Tile *tile = s->tile + s->curtileno;
/* copy defaults */ /* copy defaults */
@ -470,7 +470,7 @@ static int init_tile(Jpeg2000DecoderContext *s, int tileno)
if (!tile->comp) if (!tile->comp)
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = tile->comp + compno; Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno; Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
@ -506,7 +506,7 @@ static int getnpasses(Jpeg2000DecoderContext *s)
static int getlblockinc(Jpeg2000DecoderContext *s) static int getlblockinc(Jpeg2000DecoderContext *s)
{ {
int res = 0, ret; int res = 0, ret;
while (ret = get_bits(s, 1)){ while (ret = get_bits(s, 1)) {
if (ret < 0) if (ret < 0)
return ret; return ret;
res++; res++;
@ -519,13 +519,13 @@ static int decode_packet(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
{ {
int bandno, cblkny, cblknx, cblkno, ret; int bandno, cblkny, cblknx, cblkno, ret;
if (!(ret = get_bits(s, 1))){ if (!(ret = get_bits(s, 1))) {
j2k_flush(s); j2k_flush(s);
return 0; return 0;
} else if (ret < 0) } else if (ret < 0)
return ret; return ret;
for (bandno = 0; bandno < rlevel->nbands; bandno++){ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
Jpeg2000Band *band = rlevel->band + bandno; Jpeg2000Band *band = rlevel->band + bandno;
Jpeg2000Prec *prec = band->prec + precno; Jpeg2000Prec *prec = band->prec + precno;
int pos = 0; int pos = 0;
@ -535,7 +535,7 @@ static int decode_packet(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
continue; continue;
for (cblkny = prec->yi0; cblkny < prec->yi1; cblkny++) for (cblkny = prec->yi0; cblkny < prec->yi1; cblkny++)
for(cblknx = prec->xi0, cblkno = cblkny * band->cblknx + cblknx; cblknx < prec->xi1; cblknx++, cblkno++, pos++){ for (cblknx = prec->xi0, cblkno = cblkny * band->cblknx + cblknx; cblknx < prec->xi1; cblknx++, cblkno++, pos++) {
Jpeg2000Cblk *cblk = band->cblk + cblkno; Jpeg2000Cblk *cblk = band->cblk + cblkno;
int incl, newpasses, llen; int incl, newpasses, llen;
@ -571,12 +571,12 @@ static int decode_packet(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
} }
} }
for (bandno = 0; bandno < rlevel->nbands; bandno++){ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
Jpeg2000Band *band = rlevel->band + bandno; Jpeg2000Band *band = rlevel->band + bandno;
int yi, cblknw = band->prec[precno].xi1 - band->prec[precno].xi0; int yi, cblknw = band->prec[precno].xi1 - band->prec[precno].xi0;
for (yi = band->prec[precno].yi0; yi < band->prec[precno].yi1; yi++){ for (yi = band->prec[precno].yi0; yi < band->prec[precno].yi1; yi++) {
int xi; int xi;
for (xi = band->prec[precno].xi0; xi < band->prec[precno].xi1; xi++){ for (xi = band->prec[precno].xi0; xi < band->prec[precno].xi1; xi++) {
Jpeg2000Cblk *cblk = band->cblk + yi * cblknw + xi; Jpeg2000Cblk *cblk = band->cblk + yi * cblknw + xi;
if ( bytestream2_get_bytes_left(&s->g) < cblk->lengthinc if ( bytestream2_get_bytes_left(&s->g) < cblk->lengthinc
|| sizeof(cblk->data) < cblk->lengthinc || sizeof(cblk->data) < cblk->lengthinc
@ -595,17 +595,17 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
{ {
int layno, reslevelno, compno, precno, ok_reslevel; int layno, reslevelno, compno, precno, ok_reslevel;
s->bit_index = 8; s->bit_index = 8;
for (layno = 0; layno < tile->codsty[0].nlayers; layno++){ for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
ok_reslevel = 1; ok_reslevel = 1;
for (reslevelno = 0; ok_reslevel; reslevelno++){ for (reslevelno = 0; ok_reslevel; reslevelno++) {
ok_reslevel = 0; ok_reslevel = 0;
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000CodingStyle *codsty = tile->codsty + compno; Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
if (reslevelno < codsty->nreslevels){ if (reslevelno < codsty->nreslevels) {
Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + reslevelno; Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + reslevelno;
ok_reslevel = 1; ok_reslevel = 1;
for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++){ for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) {
if (decode_packet(s, codsty, rlevel, precno, layno, qntsty->expn + if (decode_packet(s, codsty, rlevel, precno, layno, qntsty->expn +
(reslevelno ? 3*(reslevelno-1)+1 : 0), qntsty->nguardbits)) (reslevelno ? 3*(reslevelno-1)+1 : 0), qntsty->nguardbits))
return -1; return -1;
@ -625,13 +625,13 @@ static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bpn
for (y0 = 0; y0 < height; y0 += 4) for (y0 = 0; y0 < height; y0 += 4)
for (x = 0; x < width; x++) for (x = 0; x < width; x++)
for (y = y0; y < height && y < y0+4; y++){ for (y = y0; y < height && y < y0+4; y++) {
if ((t1->flags[y+1][x+1] & JPEG2000_T1_SIG_NB) if ((t1->flags[y+1][x+1] & JPEG2000_T1_SIG_NB)
&& !(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){ && !(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) {
int flags_mask = -1; int flags_mask = -1;
if (vert_causal_ctx_csty_symbol && y == y0 + 3) if (vert_causal_ctx_csty_symbol && y == y0 + 3)
flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE); flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE);
if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_jpeg2000_getsigctxno(t1->flags[y+1][x+1] & flags_mask, bandno))){ if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_jpeg2000_getsigctxno(t1->flags[y+1][x+1] & flags_mask, bandno))) {
int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y+1][x+1], &xorbit); int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
if (bpass_csty_symbol) if (bpass_csty_symbol)
t1->data[y][x] = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? -mask : mask; t1->data[y][x] = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? -mask : mask;
@ -656,8 +656,8 @@ static void decode_refpass(Jpeg2000T1Context *t1, int width, int height, int bpn
for (y0 = 0; y0 < height; y0 += 4) for (y0 = 0; y0 < height; y0 += 4)
for (x = 0; x < width; x++) for (x = 0; x < width; x++)
for (y = y0; y < height && y < y0+4; y++){ for (y = y0; y < height && y < y0+4; y++) {
if ((t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG){ if ((t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG) {
int ctxno = ff_jpeg2000_getrefctxno(t1->flags[y+1][x+1]); int ctxno = ff_jpeg2000_getrefctxno(t1->flags[y+1][x+1]);
int r = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? phalf : nhalf; int r = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? phalf : nhalf;
t1->data[y][x] += t1->data[y][x] < 0 ? -r : r; t1->data[y][x] += t1->data[y][x] < 0 ? -r : r;
@ -672,12 +672,12 @@ static void decode_clnpass(Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, int
int mask = 3 << (bpno - 1), y0, x, y, runlen, dec; int mask = 3 << (bpno - 1), y0, x, y, runlen, dec;
for (y0 = 0; y0 < height; y0 += 4) { for (y0 = 0; y0 < height; y0 += 4) {
for (x = 0; x < width; x++){ for (x = 0; x < width; x++) {
if (y0 + 3 < height && !( if (y0 + 3 < height && !(
(t1->flags[y0+1][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || (t1->flags[y0+1][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
(t1->flags[y0+2][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || (t1->flags[y0+2][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
(t1->flags[y0+3][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || (t1->flags[y0+3][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
(t1->flags[y0+4][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)))){ (t1->flags[y0+4][x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)))) {
if (!ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL)) if (!ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL))
continue; continue;
runlen = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI); runlen = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
@ -688,8 +688,8 @@ static void decode_clnpass(Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, int
dec = 0; dec = 0;
} }
for (y = y0 + runlen; y < y0 + 4 && y < height; y++){ for (y = y0 + runlen; y < y0 + 4 && y < height; y++) {
if (!dec){ if (!dec) {
if (!(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) { if (!(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) {
int flags_mask = -1; int flags_mask = -1;
if (vert_causal_ctx_csty_symbol && y == y0 + 3) if (vert_causal_ctx_csty_symbol && y == y0 + 3)
@ -698,7 +698,7 @@ static void decode_clnpass(Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, int
bandno)); bandno));
} }
} }
if (dec){ if (dec) {
int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y+1][x+1], &xorbit); int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ? -mask : mask; t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ? -mask : mask;
ff_j2k_set_significant(t1, x, y, t1->data[y][x] < 0); ff_j2k_set_significant(t1, x, y, t1->data[y][x] < 0);
@ -737,8 +737,8 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, J
cblk->data[cblk->length+1] = 0xff; cblk->data[cblk->length+1] = 0xff;
ff_mqc_initdec(&t1->mqc, cblk->data); ff_mqc_initdec(&t1->mqc, cblk->data);
while(passno--){ while (passno--) {
switch(pass_t){ switch(pass_t) {
case 0: decode_sigpass(t1, width, height, bpno+1, bandpos, case 0: decode_sigpass(t1, width, height, bpno+1, bandpos,
bpass_csty_symbol && (clnpass_cnt >= 4), vert_causal_ctx_csty_symbol); bpass_csty_symbol && (clnpass_cnt >= 4), vert_causal_ctx_csty_symbol);
break; break;
@ -755,7 +755,7 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, J
} }
pass_t++; pass_t++;
if (pass_t == 3){ if (pass_t == 3) {
bpno--; bpno--;
pass_t = 0; pass_t = 0;
} }
@ -773,8 +773,8 @@ static void mct_decode(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
for (i = 0; i < 2; i++) for (i = 0; i < 2; i++)
csize *= tile->comp[0].coord[i][1] - tile->comp[0].coord[i][0]; csize *= tile->comp[0].coord[i][1] - tile->comp[0].coord[i][0];
if (tile->codsty[0].transform == FF_DWT97){ if (tile->codsty[0].transform == FF_DWT97) {
for (i = 0; i < csize; i++){ for (i = 0; i < csize; i++) {
i0 = *src[0] + (*src[2] * 46802 >> 16); i0 = *src[0] + (*src[2] * 46802 >> 16);
i1 = *src[0] - (*src[1] * 22553 + *src[2] * 46802 >> 16); i1 = *src[0] - (*src[1] * 22553 + *src[2] * 46802 >> 16);
i2 = *src[0] + (116130 * *src[1] >> 16); i2 = *src[0] + (116130 * *src[1] >> 16);
@ -783,7 +783,7 @@ static void mct_decode(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
*src[2]++ = i2; *src[2]++ = i2;
} }
} else{ } else{
for (i = 0; i < csize; i++){ for (i = 0; i < csize; i++) {
i1 = *src[0] - (*src[2] + *src[1] >> 2); i1 = *src[0] - (*src[2] + *src[1] >> 2);
i0 = i1 + *src[2]; i0 = i1 + *src[2];
i2 = i1 + *src[1]; i2 = i1 + *src[1];
@ -801,13 +801,13 @@ static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
uint8_t *line; uint8_t *line;
Jpeg2000T1Context t1; Jpeg2000T1Context t1;
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = tile->comp + compno; Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno; Jpeg2000CodingStyle *codsty = tile->codsty + compno;
for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
for (bandno = 0; bandno < rlevel->nbands; bandno++){ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
Jpeg2000Band *band = rlevel->band + bandno; Jpeg2000Band *band = rlevel->band + bandno;
int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos; int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
@ -821,7 +821,7 @@ static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1]) if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
continue; continue;
for (cblky = 0; cblky < band->cblkny; cblky++){ for (cblky = 0; cblky < band->cblkny; cblky++) {
if (reslevelno == 0 || bandno == 1) if (reslevelno == 0 || bandno == 1)
xx0 = 0; xx0 = 0;
else else
@ -830,20 +830,20 @@ static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
xx1 = FFMIN(ff_jpeg2000_ceildiv(band->coord[0][0] + 1, band->codeblock_width) * band->codeblock_width, xx1 = FFMIN(ff_jpeg2000_ceildiv(band->coord[0][0] + 1, band->codeblock_width) * band->codeblock_width,
band->coord[0][1]) - band->coord[0][0] + xx0; band->coord[0][1]) - band->coord[0][0] + xx0;
for (cblkx = 0; cblkx < band->cblknx; cblkx++, cblkno++){ for (cblkx = 0; cblkx < band->cblknx; cblkx++, cblkno++) {
int y, x; int y, x;
decode_cblk(s, codsty, &t1, band->cblk + cblkno, xx1 - xx0, yy1 - yy0, bandpos); decode_cblk(s, codsty, &t1, band->cblk + cblkno, xx1 - xx0, yy1 - yy0, bandpos);
if (codsty->transform == FF_DWT53){ if (codsty->transform == FF_DWT53) {
for (y = yy0; y < yy1; y+=s->cdy[compno]){ for (y = yy0; y < yy1; y+=s->cdy[compno]) {
int *ptr = t1.data[y-yy0]; int *ptr = t1.data[y-yy0];
for (x = xx0; x < xx1; x+=s->cdx[compno]){ for (x = xx0; x < xx1; x+=s->cdx[compno]) {
comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = *ptr++ >> 1; comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = *ptr++ >> 1;
} }
} }
} else{ } else{
for (y = yy0; y < yy1; y+=s->cdy[compno]){ for (y = yy0; y < yy1; y+=s->cdy[compno]) {
int *ptr = t1.data[y-yy0]; int *ptr = t1.data[y-yy0];
for (x = xx0; x < xx1; x+=s->cdx[compno]){ for (x = xx0; x < xx1; x+=s->cdx[compno]) {
int tmp = ((int64_t)*ptr++) * ((int64_t)band->stepsize) >> 13, tmp2; int tmp = ((int64_t)*ptr++) * ((int64_t)band->stepsize) >> 13, tmp2;
tmp2 = FFABS(tmp>>1) + (tmp&1); tmp2 = FFABS(tmp>>1) + (tmp&1);
comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = tmp < 0 ? -tmp2 : tmp2; comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = tmp < 0 ? -tmp2 : tmp2;
@ -865,10 +865,10 @@ static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
mct_decode(s, tile); mct_decode(s, tile);
if (s->precision <= 8) { if (s->precision <= 8) {
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
y = tile->comp[compno].coord[1][0] - s->image_offset_y; y = tile->comp[compno].coord[1][0] - s->image_offset_y;
line = s->picture->data[0] + y * s->picture->linesize[0]; line = s->picture->data[0] + y * s->picture->linesize[0];
for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]){ for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
uint8_t *dst; uint8_t *dst;
x = tile->comp[compno].coord[0][0] - s->image_offset_x; x = tile->comp[compno].coord[0][0] - s->image_offset_x;
@ -914,8 +914,8 @@ static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
static void cleanup(Jpeg2000DecoderContext *s) static void cleanup(Jpeg2000DecoderContext *s)
{ {
int tileno, compno; int tileno, compno;
for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) {
for (compno = 0; compno < s->ncomponents; compno++){ for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = s->tile[tileno].comp + compno; Jpeg2000Component *comp = s->tile[tileno].comp + compno;
Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno; Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno;
@ -932,7 +932,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
Jpeg2000QuantStyle *qntsty = s->qntsty; Jpeg2000QuantStyle *qntsty = s->qntsty;
uint8_t *properties = s->properties; uint8_t *properties = s->properties;
for (;;){ for (;;) {
int oldpos, marker, len, ret = 0; int oldpos, marker, len, ret = 0;
if (bytestream2_get_bytes_left(&s->g) < 2) { if (bytestream2_get_bytes_left(&s->g) < 2) {
@ -944,7 +944,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
av_dlog(s->avctx, "marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4); av_dlog(s->avctx, "marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4);
oldpos = bytestream2_tell(&s->g); oldpos = bytestream2_tell(&s->g);
if (marker == JPEG2000_SOD){ if (marker == JPEG2000_SOD) {
Jpeg2000Tile *tile = s->tile + s->curtileno; Jpeg2000Tile *tile = s->tile + s->curtileno;
if (ret = init_tile(s, s->curtileno)) { if (ret = init_tile(s, s->curtileno)) {
av_log(s->avctx, AV_LOG_ERROR, "tile initialization failed\n"); av_log(s->avctx, AV_LOG_ERROR, "tile initialization failed\n");
@ -962,7 +962,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
if (bytestream2_get_bytes_left(&s->g) < 2) if (bytestream2_get_bytes_left(&s->g) < 2)
return AVERROR(EINVAL); return AVERROR(EINVAL);
len = bytestream2_get_be16u(&s->g); len = bytestream2_get_be16u(&s->g);
switch (marker){ switch (marker) {
case JPEG2000_SIZ: case JPEG2000_SIZ:
ret = get_siz(s); ret = get_siz(s);
if (!s->tile) if (!s->tile)
@ -981,7 +981,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
ret = get_qcd(s, len, qntsty, properties); ret = get_qcd(s, len, qntsty, properties);
break; break;
case JPEG2000_SOT: case JPEG2000_SOT:
if (!(ret = get_sot(s))){ if (!(ret = get_sot(s))) {
codsty = s->tile[s->curtileno].codsty; codsty = s->tile[s->curtileno].codsty;
qntsty = s->tile[s->curtileno].qntsty; qntsty = s->tile[s->curtileno].qntsty;
properties = s->tile[s->curtileno].properties; properties = s->tile[s->curtileno].properties;
@ -996,7 +996,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
bytestream2_skip(&s->g, len - 2); bytestream2_skip(&s->g, len - 2);
break; break;
} }
if (bytestream2_tell(&s->g) - oldpos != len || ret){ if (bytestream2_tell(&s->g) - oldpos != len || ret) {
av_log(s->avctx, AV_LOG_ERROR, "error during processing marker segment %.4x\n", marker); av_log(s->avctx, AV_LOG_ERROR, "error during processing marker segment %.4x\n", marker);
return ret ? ret : -1; return ret ? ret : -1;
} }
@ -1009,7 +1009,7 @@ static int jp2_find_codestream(Jpeg2000DecoderContext *s)
uint32_t atom_size, atom; uint32_t atom_size, atom;
int found_codestream = 0, search_range = 10; int found_codestream = 0, search_range = 10;
while(!found_codestream && search_range && bytestream2_get_bytes_left(&s->g) >= 8) { while (!found_codestream && search_range && bytestream2_get_bytes_left(&s->g) >= 8) {
atom_size = bytestream2_get_be32u(&s->g); atom_size = bytestream2_get_be32u(&s->g);
atom = bytestream2_get_be32u(&s->g); atom = bytestream2_get_be32u(&s->g);
if (atom == JP2_CODESTREAM) { if (atom == JP2_CODESTREAM) {
@ -1037,7 +1037,7 @@ static int decode_frame(AVCodecContext *avctx,
s->picture = picture; s->picture = picture;
s->avctx = avctx; s->avctx = avctx;
bytestream2_init(&s->g, avpkt->data, avpkt->size); bytestream2_init(&s->g, avpkt->data, avpkt->size);
s->curtileno = -1; s->curtileno = -1;
@ -1051,7 +1051,7 @@ static int decode_frame(AVCodecContext *avctx,
(bytestream2_get_be32u(&s->g) == 12) && (bytestream2_get_be32u(&s->g) == 12) &&
(bytestream2_get_be32u(&s->g) == JP2_SIG_TYPE) && (bytestream2_get_be32u(&s->g) == JP2_SIG_TYPE) &&
(bytestream2_get_be32u(&s->g) == JP2_SIG_VALUE)) { (bytestream2_get_be32u(&s->g) == JP2_SIG_VALUE)) {
if(!jp2_find_codestream(s)) { if (!jp2_find_codestream(s)) {
av_log(avctx, AV_LOG_ERROR, "couldn't find jpeg2k codestream atom\n"); av_log(avctx, AV_LOG_ERROR, "couldn't find jpeg2k codestream atom\n");
ret = -1; ret = -1;
goto err_out; goto err_out;
@ -1060,7 +1060,7 @@ static int decode_frame(AVCodecContext *avctx,
bytestream2_seek(&s->g, 0, SEEK_SET); bytestream2_seek(&s->g, 0, SEEK_SET);
} }
if (bytestream2_get_be16u(&s->g) != JPEG2000_SOC){ if (bytestream2_get_be16u(&s->g) != JPEG2000_SOC) {
av_log(avctx, AV_LOG_ERROR, "SOC marker not present\n"); av_log(avctx, AV_LOG_ERROR, "SOC marker not present\n");
ret = -1; ret = -1;
goto err_out; goto err_out;
@ -1089,12 +1089,12 @@ static void jpeg2000_init_static_data(AVCodec *codec)
} }
AVCodec ff_j2k_decoder = { AVCodec ff_j2k_decoder = {
.name = "j2k", .name = "j2k",
.type = AVMEDIA_TYPE_VIDEO, .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
.id = AV_CODEC_ID_JPEG2000, .type = AVMEDIA_TYPE_VIDEO,
.priv_data_size = sizeof(Jpeg2000DecoderContext), .id = AV_CODEC_ID_JPEG2000,
.capabilities = CODEC_CAP_EXPERIMENTAL | CODEC_CAP_FRAME_THREADS,
.priv_data_size = sizeof(Jpeg2000DecoderContext),
.init_static_data = jpeg2000_init_static_data, .init_static_data = jpeg2000_init_static_data,
.decode = decode_frame, .decode = decode_frame,
.capabilities = CODEC_CAP_EXPERIMENTAL | CODEC_CAP_FRAME_THREADS,
.long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
}; };

12
libavcodec/jpeg2000dec.c
View File

@ -60,7 +60,7 @@ typedef struct Jpeg2000Tile {
typedef struct Jpeg2000DecoderContext { typedef struct Jpeg2000DecoderContext {
AVClass *class; AVClass *class;
AVCodecContext *avctx; AVCodecContext *avctx;
GetByteContext g; GetByteContext g;
int width, height; int width, height;
int image_offset_x, image_offset_y; int image_offset_x, image_offset_y;
@ -170,11 +170,11 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz
s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz
if(s->ncomponents <= 0 || s->ncomponents > 4) { if (s->ncomponents <= 0 || s->ncomponents > 4) {
av_log(s->avctx, AV_LOG_ERROR, "unsupported/invalid ncomponents: %d\n", s->ncomponents); av_log(s->avctx, AV_LOG_ERROR, "unsupported/invalid ncomponents: %d\n", s->ncomponents);
return AVERROR(EINVAL); return AVERROR(EINVAL);
} }
if(s->tile_width<=0 || s->tile_height<=0) if (s->tile_width<=0 || s->tile_height<=0)
return AVERROR(EINVAL); return AVERROR(EINVAL);
if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents) if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents)
@ -192,7 +192,7 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width); s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width);
s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height); s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height);
if(s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile)) if (s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile))
return AVERROR(EINVAL); return AVERROR(EINVAL);
s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(*s->tile)); s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(*s->tile));
@ -420,7 +420,7 @@ static int get_sot(Jpeg2000DecoderContext *s, int n)
return AVERROR(EINVAL); return AVERROR(EINVAL);
s->curtileno = Isot = bytestream2_get_be16u(&s->g); // Isot s->curtileno = Isot = bytestream2_get_be16u(&s->g); // Isot
if((unsigned)s->curtileno >= s->numXtiles * s->numYtiles){ if ((unsigned)s->curtileno >= s->numXtiles * s->numYtiles) {
s->curtileno=0; s->curtileno=0;
return AVERROR(EINVAL); return AVERROR(EINVAL);
} }
@ -1244,7 +1244,7 @@ static int jp2_find_codestream(Jpeg2000DecoderContext *s)
uint32_t atom_size, atom; uint32_t atom_size, atom;
int found_codestream = 0, search_range = 10; int found_codestream = 0, search_range = 10;
while(!found_codestream && search_range && bytestream2_get_bytes_left(&s->g) >= 8) { while (!found_codestream && search_range && bytestream2_get_bytes_left(&s->g) >= 8) {
atom_size = bytestream2_get_be32u(&s->g); atom_size = bytestream2_get_be32u(&s->g);
atom = bytestream2_get_be32u(&s->g); atom = bytestream2_get_be32u(&s->g);
if (atom == JP2_CODESTREAM) { if (atom == JP2_CODESTREAM) {