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Merge commit '22e18ea39e371030cc78973d1b46aae45a7ea215'

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* commit '22e18ea39e371030cc78973d1b46aae45a7ea215':
  jpeg2000: Optimize output sample conversion
  jpeg2000: Reset s->numX/Ytiles on tile deallocation
  jpeg2000: Optimize dequantization
  jpeg2000: Do not assume a single tile
  jpeg2000: Speed up jpeg2000_decode_tile()
  jpeg2000: Use EBCOT's CAUSAL and BYPASS mode in decode_cblk()

Conflicts:
	libavcodec/jpeg2000dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-07-03 16:36:05 +02:00
commit 5eb23e6b0a
1 changed files with 10 additions and 6 deletions
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16
libavcodec/jpeg2000dec.c
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@ -942,9 +942,10 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk,
int width, int height, int bandpos)
{
int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1, y, clnpass_cnt = 0;
int bpass_csty_symbol = JPEG2000_CBLK_BYPASS & codsty->cblk_style;
int vert_causal_ctx_csty_symbol = JPEG2000_CBLK_VSC & codsty->cblk_style;
int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1, y;
int clnpass_cnt = 0;
int bpass_csty_symbol = codsty->cblk_style & JPEG2000_CBLK_BYPASS;
int vert_causal_ctx_csty_symbol = codsty->cblk_style & JPEG2000_CBLK_VSC;
for (y = 0; y < height; y++)
memset(t1->data[y], 0, width * sizeof(**t1->data));
@ -964,7 +965,8 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
switch(pass_t) {
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;
case 1:
decode_refpass(t1, width, height, bpno + 1);
@ -973,7 +975,8 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
break;
case 2:
decode_clnpass(s, t1, width, height, bpno + 1, bandpos,
codsty->cblk_style & JPEG2000_CBLK_SEGSYM, vert_causal_ctx_csty_symbol);
codsty->cblk_style & JPEG2000_CBLK_SEGSYM,
vert_causal_ctx_csty_symbol);
clnpass_cnt = clnpass_cnt + 1;
if (bpass_csty_symbol && clnpass_cnt >= 4)
ff_mqc_initdec(&t1->mqc, cblk->data);
@ -1116,7 +1119,8 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
bandpos = bandno + (reslevelno > 0);
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;
nb_precincts = rlevel->num_precincts_x * rlevel->num_precincts_y;