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ffmpeg.wasm-core
Commit 3f714d1f authored by Michael Niedermayer's avatar Michael Niedermayer
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jpeg2000/j2k: merge non functional changes 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 941a8efa
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Showing with 33 additions and 28 deletions
libavcodec/j2kdec.c
View file @ 3f714d1f
......@@ -213,6 +213,7 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->reduction_factor);
s->avctx->height = ff_jpeg2000_ceildivpow2(s->height - s->image_offset_y,
s->reduction_factor);
switch(s->ncomponents) {
case 1:
if (s->precision > 8)
......@@ -426,7 +427,7 @@ static int get_qcc(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q,
return get_qcx(s, n - 1, q + compno);
}
/** get start of tile segment */
/* get start of tile segment */
static int get_sot(Jpeg2000DecoderContext *s)
{
if (bytestream2_get_bytes_left(&s->g) < 8)
......@@ -525,7 +526,7 @@ static int init_tile(Jpeg2000DecoderContext *s, int tileno)
return 0;
}
/** read the number of coding passes */
/* read the number of coding passes */
static int getnpasses(Jpeg2000DecoderContext *s)
{
int num;
......@@ -552,10 +553,10 @@ static int getlblockinc(Jpeg2000DecoderContext *s)
return res;
}
static int decode_packet(Jpeg2000DecoderContext *s,
Jpeg2000CodingStyle *codsty,
Jpeg2000ResLevel *rlevel, int precno,
int layno, uint8_t *expn, int numgbits)
static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
Jpeg2000CodingStyle *codsty,
Jpeg2000ResLevel *rlevel, int precno,
int layno, uint8_t *expn, int numgbits)
{
int bandno, cblkno, ret, nb_code_blocks;
......@@ -653,14 +654,13 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel +
reslevelno;
ok_reslevel = 1;
for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) {
if (decode_packet(s,
codsty, rlevel,
precno, layno,
qntsty->expn + (reslevelno ? 3*(reslevelno-1)+1 : 0),
qntsty->nguardbits))
for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++)
if (jpeg2000_decode_packet(s,
codsty, rlevel,
precno, layno,
qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
qntsty->nguardbits))
return -1;
}
}
}
}
......@@ -691,7 +691,8 @@ static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height,
t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ?
-mask : mask;
ff_jpeg2000_set_significance(t1, x, y, t1->data[y][x] < 0);
ff_jpeg2000_set_significance(t1, x, y,
t1->data[y][x] < 0);
}
t1->flags[y + 1][x + 1] |= JPEG2000_T1_VIS;
}
......@@ -792,7 +793,7 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
int vert_causal_ctx_csty_symbol = JPEG2000_CBLK_VSC & codsty->cblk_style;
for (y = 0; y < height+2; y++)
memset(t1->flags[y], 0, (width+2)*sizeof(int));
memset(t1->flags[y], 0, (width + 2)*sizeof(int));
for (y = 0; y < height; y++)
memset(t1->data[y], 0, width*sizeof(int));
......@@ -804,16 +805,16 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
while (passno--) {
switch(pass_t) {
case 0:
decode_sigpass(t1, width, height, bpno+1, bandpos,
decode_sigpass(t1, width, height, bpno + 1, bandpos,
bpass_csty_symbol && (clnpass_cnt >= 4), vert_causal_ctx_csty_symbol);
break;
case 1:
decode_refpass(t1, width, height, bpno+1);
decode_refpass(t1, width, height, bpno + 1);
if (bpass_csty_symbol && clnpass_cnt >= 4)
ff_mqc_initdec(&t1->mqc, cblk->data);
break;
case 2:
decode_clnpass(s, t1, width, height, bpno+1, bandpos,
decode_clnpass(s, t1, width, height, bpno + 1, bandpos,
codsty->cblk_style & JPEG2000_CBLK_SEGSYM, vert_causal_ctx_csty_symbol);
clnpass_cnt = clnpass_cnt + 1;
if (bpass_csty_symbol && clnpass_cnt >= 4)
......@@ -921,15 +922,16 @@ static void mct_decode(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
*src[1]++ = i1;
*src[2]++ = i2;
}
break;
}
}
static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
AVFrame *picture)
)
static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
AVFrame *picture)
{
int compno, reslevelno, bandno;
int x, y;
uint8_t *line;
Jpeg2000T1Context t1;
......@@ -1066,14 +1068,16 @@ static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
av_freep(&s->tile);
}
static int decode_codestream(Jpeg2000DecoderContext *s)
static int jpeg2000_decode_codestream(Jpeg2000DecoderContext *s)
{
Jpeg2000CodingStyle *codsty = s->codsty;
Jpeg2000QuantStyle *qntsty = s->qntsty;
uint8_t *properties = s->properties;
for (;;) {
int oldpos, marker, len, ret = 0;
int len, ret = 0;
int marker;
int oldpos;
if (bytestream2_get_bytes_left(&s->g) < 2) {
av_log(s->avctx, AV_LOG_ERROR, "Missing EOC\n");
......@@ -1081,7 +1085,6 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
}
marker = bytestream2_get_be16u(&s->g);
av_dlog(s->avctx, "marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4);
oldpos = bytestream2_tell(&s->g);
if (marker == JPEG2000_SOD) {
......@@ -1137,7 +1140,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
break;
default:
av_log(s->avctx, AV_LOG_ERROR,
"unsupported marker 0x%.4X at pos 0x%x\n",
"unsupported marker 0x%.4X at pos 0x%X\n",
marker, bytestream2_tell(&s->g) - 4);
bytestream2_skip(&s->g, len - 2);
break;
......@@ -1214,11 +1217,11 @@ static int jpeg2000_decode_frame(AVCodecContext *avctx, void *data,
ret = -1;
goto err_out;
}
if (ret = decode_codestream(s))
if (ret = jpeg2000_decode_codestream(s))
goto err_out;
for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++)
if (ret = decode_tile(s, s->tile + tileno, s->picture))
if (ret = jpeg2000_decode_tile(s, s->tile + tileno, s->picture))
goto err_out;
jpeg2000_dec_cleanup(s);
......
libavcodec/jpeg2000dec.c
View file @ 3f714d1f
......@@ -601,6 +601,7 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
if (band->coord[0][0] == band->coord[0][1] ||
band->coord[1][0] == band->coord[1][1])
continue;
nb_code_blocks = prec->nb_codeblocks_height *
prec->nb_codeblocks_width;
for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {
......@@ -1020,8 +1021,8 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
uint8_t *line;
Jpeg2000T1Context t1;
/* Loop on tile components */
/* Loop on tile components */
for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = tile->comp + compno;
Jpeg2000CodingStyle *codsty = tile->codsty + compno;
......@@ -1075,6 +1076,7 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
Jpeg2000Component *comp = tile->comp + compno;
float *datap = comp->f_data;
int32_t *i_datap = comp->i_data;
y = tile->comp[compno].coord[1][0] - s->image_offset_y;
line = picture->data[0] + y * picture->linesize[0];
for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
......
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