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ffmpeg.wasm-core
Commit c72a8319 authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/jpeg2000dec: Support progression order changes 

Fixes Ticket4657
Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 2ec0ba1e
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Showing with 59 additions and 22 deletions
libavcodec/jpeg2000.c
View file @ c72a8319
......@@ -391,6 +391,8 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
Jpeg2000Prec *prec = band->prec + precno;
int nb_codeblocks;
prec->decoded_layers = 0;
/* TODO: Explain formula for JPEG200 DCINEMA. */
/* TODO: Verify with previous count of codeblocks per band */
......
libavcodec/jpeg2000.h
View file @ c72a8319
......@@ -183,6 +183,7 @@ typedef struct Jpeg2000Prec {
Jpeg2000TgtNode *zerobits;
Jpeg2000TgtNode *cblkincl;
Jpeg2000Cblk *cblk;
int decoded_layers;
uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
} Jpeg2000Prec; // precinct
......
libavcodec/jpeg2000dec.c
View file @ c72a8319
......@@ -893,6 +893,10 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
int bandno, cblkno, ret, nb_code_blocks;
int cwsno;
if (layno < rlevel->band[0].prec[precno].decoded_layers)
return 0;
rlevel->band[0].prec[precno].decoded_layers = layno + 1;
if (bytestream2_get_bytes_left(&s->g) == 0 && s->bit_index == 8) {
if (*tp_index < FF_ARRAY_ELEMS(tile->tile_part) - 1) {
s->g = tile->tile_part[++(*tp_index)].tpg;
......@@ -1026,7 +1030,10 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
return 0;
}
static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
static int jpeg2000_decode_packets_po_iteration(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
int RSpoc, int CSpoc,
int LYEpoc, int REpoc, int CEpoc,
int Ppoc)
{
int ret = 0;
int layno, reslevelno, compno, precno, ok_reslevel;
......@@ -1034,15 +1041,14 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
int tp_index = 0;
int step_x, step_y;
s->bit_index = 8;
switch (tile->codsty[0].prog_order) {
switch (Ppoc) {
case JPEG2000_PGOD_RLCP:
av_log(s->avctx, AV_LOG_DEBUG, "Progression order RLCP\n");
ok_reslevel = 1;
for (reslevelno = 0; ok_reslevel; reslevelno++) {
for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) {
ok_reslevel = 0;
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
for (compno = 0; compno < s->ncomponents; compno++) {
for (layno = 0; layno < LYEpoc; layno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
if (reslevelno < codsty->nreslevels) {
......@@ -1064,11 +1070,11 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
case JPEG2000_PGOD_LRCP:
av_log(s->avctx, AV_LOG_DEBUG, "Progression order LRCP\n");
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
for (layno = 0; layno < LYEpoc; layno++) {
ok_reslevel = 1;
for (reslevelno = 0; ok_reslevel; reslevelno++) {
for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) {
ok_reslevel = 0;
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
if (reslevelno < codsty->nreslevels) {
......@@ -1090,14 +1096,14 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
case JPEG2000_PGOD_CPRL:
av_log(s->avctx, AV_LOG_DEBUG, "Progression order CPRL\n");
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
step_x = 32;
step_y = 32;
for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) {
uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno);
......@@ -1108,7 +1114,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) {
for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) {
for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) {
unsigned prcx, prcy;
uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
......@@ -1135,7 +1141,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
continue;
}
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
for (layno = 0; layno < LYEpoc; layno++) {
if ((ret = jpeg2000_decode_packet(s, tile, &tp_index, codsty, rlevel,
precno, layno,
qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
......@@ -1151,11 +1157,11 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
case JPEG2000_PGOD_RPCL:
av_log(s->avctx, AV_LOG_WARNING, "Progression order RPCL\n");
ok_reslevel = 1;
for (reslevelno = 0; ok_reslevel; reslevelno++) {
for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) {
ok_reslevel = 0;
step_x = 30;
step_y = 30;
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
......@@ -1171,7 +1177,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) {
for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) {
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
......@@ -1206,7 +1212,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
continue;
}
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
for (layno = 0; layno < LYEpoc; layno++) {
if ((ret = jpeg2000_decode_packet(s, tile, &tp_index,
codsty, rlevel,
precno, layno,
......@@ -1224,12 +1230,12 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
av_log(s->avctx, AV_LOG_WARNING, "Progression order PCRL\n");
step_x = 32;
step_y = 32;
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) {
uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno);
......@@ -1241,14 +1247,14 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) {
for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) {
for (compno = 0; compno < s->ncomponents; compno++) {
for (compno = CSpoc; compno < CEpoc; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
int xc = x / s->cdx[compno];
int yc = y / s->cdy[compno];
for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) {
unsigned prcx, prcy;
uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
......@@ -1273,7 +1279,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
continue;
}
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
for (layno = 0; layno < LYEpoc; layno++) {
if ((ret = jpeg2000_decode_packet(s, tile, &tp_index, codsty, rlevel,
precno, layno,
qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
......@@ -1290,6 +1296,34 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
break;
}
return ret;
}
static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
{
int ret, i;
s->bit_index = 8;
if (tile->poc.nb_poc) {
for (i=0; i<tile->poc.nb_poc; i++) {
Jpeg2000POCEntry *e = &tile->poc.poc[i];
ret = jpeg2000_decode_packets_po_iteration(s, tile,
e->RSpoc, e->CSpoc,
e->LYEpoc, e->REpoc, e->CEpoc,
e->Ppoc
);
if (ret < 0)
return ret;
}
} else {
ret = jpeg2000_decode_packets_po_iteration(s, tile,
0, 0,
tile->codsty[0].nlayers,
33,
s->ncomponents,
tile->codsty[0].prog_order
);
}
/* EOC marker reached */
bytestream2_skip(&s->g, 2);
......
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