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avcodec/jpeg2000: Move gainb handling into the quantization code

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thats how the specification defines it, this also improves numerical
accuracy of the integer wavelet implementation. It otherwise should
be equivalent, in case of overflows this can be reverted.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-06-22 01:30:33 +02:00
parent 6504047f82
commit 1c495b0bf6
8 changed files with 54 additions and 55 deletions
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5
libavcodec/jpeg2000.c
View File

@ -305,9 +305,6 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
* delta_b = 2 ^ (R_b - expn_b) * (1 + (mant_b / 2 ^ 11))
* R_b = R_I + log2 (gain_b )
* see ISO/IEC 15444-1:2002 E.1.1 eqn. E-3 and E-4 */
/* TODO/WARN: value of log2 (gain_b ) not taken into account
* but it works (compared to OpenJPEG). Why?
* Further investigation needed. */
gain = cbps;
band->f_stepsize = pow(2.0, gain - qntsty->expn[gbandno]);
band->f_stepsize *= qntsty->mant[gbandno] / 2048.0 + 1.0;
@ -317,6 +314,8 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
av_log(avctx, AV_LOG_ERROR, "Unknown quantization format\n");
break;
}
band->f_stepsize *= 1<<lut_gain[codsty->transform != FF_DWT53][bandno + (reslevelno > 0)];
/* FIXME: In openjepg code stespize = stepsize * 0.5. Why?
* If not set output of entropic decoder is not correct. */
if (!av_codec_is_encoder(avctx->codec))

28
libavcodec/jpeg2000dwt.c
View File

@ -38,7 +38,7 @@
#define F_LFTG_GAMMA 0.882911075530934f
#define F_LFTG_DELTA 0.443506852043971f
#define F_LFTG_K 1.230174104914001f
#define F_LFTG_X 1.625786132231922f
#define F_LFTG_X 0.812893066115961f
/* Lifting parameters in integer format.
* Computed as param = (float param) * (1 << 16) */
@ -47,7 +47,7 @@
#define I_LFTG_GAMMA 57862
#define I_LFTG_DELTA 29066
#define I_LFTG_K 80621
#define I_LFTG_X 106548
#define I_LFTG_X 53274
static inline void extend53(int *p, int i0, int i1)
{
@ -151,7 +151,7 @@ static void sd_1d97_float(float *p, int i0, int i1)
if (i1 <= i0 + 1) {
if (i0 == 1)
p[1] *= F_LFTG_X;
p[1] *= F_LFTG_X * 2;
else
p[0] *= F_LFTG_K;
return;
@ -197,9 +197,9 @@ static void dwt_encode97_float(DWTContext *s, float *t)
// copy back and deinterleave
for (i = mh; i < lh; i+=2, j++)
t[w*lp + j] = F_LFTG_X * l[i] / 2;
t[w*lp + j] = F_LFTG_X * l[i];
for (i = 1-mh; i < lh; i+=2, j++)
t[w*lp + j] = F_LFTG_K * l[i] / 2;
t[w*lp + j] = F_LFTG_K * l[i];
}
// VER_SD
@ -214,9 +214,9 @@ static void dwt_encode97_float(DWTContext *s, float *t)
// copy back and deinterleave
for (i = mv; i < lv; i+=2, j++)
t[w*j + lp] = F_LFTG_X * l[i] / 2;
t[w*j + lp] = F_LFTG_X * l[i];
for (i = 1-mv; i < lv; i+=2, j++)
t[w*j + lp] = F_LFTG_K * l[i] / 2;
t[w*j + lp] = F_LFTG_K * l[i];
}
}
}
@ -227,7 +227,7 @@ static void sd_1d97_int(int *p, int i0, int i1)
if (i1 <= i0 + 1) {
if (i0 == 1)
p[1] = (p[1] * I_LFTG_X + (1<<15)) >> 16;
p[1] = (p[1] * I_LFTG_X + (1<<14)) >> 15;
else
p[0] = (p[0] * I_LFTG_K + (1<<15)) >> 16;
return;
@ -273,9 +273,9 @@ static void dwt_encode97_int(DWTContext *s, int *t)
// copy back and deinterleave
for (i = mv; i < lv; i+=2, j++)
t[w*j + lp] = ((l[i] * I_LFTG_X) + (1 << 16)) >> 17;
t[w*j + lp] = ((l[i] * I_LFTG_X) + (1 << 15)) >> 16;
for (i = 1-mv; i < lv; i+=2, j++)
t[w*j + lp] = ((l[i] * I_LFTG_K) + (1 << 16)) >> 17;
t[w*j + lp] = ((l[i] * I_LFTG_K) + (1 << 15)) >> 16;
}
// HOR_SD
@ -290,9 +290,9 @@ static void dwt_encode97_int(DWTContext *s, int *t)
// copy back and deinterleave
for (i = mh; i < lh; i+=2, j++)
t[w*lp + j] = ((l[i] * I_LFTG_X) + (1 << 16)) >> 17;
t[w*lp + j] = ((l[i] * I_LFTG_X) + (1 << 15)) >> 16;
for (i = 1-mh; i < lh; i+=2, j++)
t[w*lp + j] = ((l[i] * I_LFTG_K) + (1 << 16)) >> 17;
t[w*lp + j] = ((l[i] * I_LFTG_K) + (1 << 15)) >> 16;
}
}
@ -373,7 +373,7 @@ static void sr_1d97_float(float *p, int i0, int i1)
if (i0 == 1)
p[1] *= F_LFTG_K/2;
else
p[0] *= F_LFTG_X/2;
p[0] *= F_LFTG_X;
return;
}
@ -450,7 +450,7 @@ static void sr_1d97_int(int32_t *p, int i0, int i1)
if (i0 == 1)
p[1] = (p[1] * I_LFTG_K + (1<<16)) >> 17;
else
p[0] = (p[0] * I_LFTG_X + (1<<16)) >> 17;
p[0] = (p[0] * I_LFTG_X + (1<<15)) >> 16;
return;
}

40
tests/ref/fate/j2k-dwt
View File

@ -1,60 +1,60 @@
5/3i, decomp:15 border 151 170 140 183 milli-err2: 0
9/7i, decomp:15 border 151 170 140 183 milli-err2: 13160
9/7i, decomp:15 border 151 170 140 183 milli-err2: 5407
9/7f, decomp:15 border 151 170 140 183 err2: 0.0001
5/3i, decomp:21 border 173 201 81 189 milli-err2: 0
9/7i, decomp:21 border 173 201 81 189 milli-err2: 24635
9/7i, decomp:21 border 173 201 81 189 milli-err2: 8289
9/7f, decomp:21 border 173 201 81 189 err2: 0.0001
5/3i, decomp:22 border 213 227 76 245 milli-err2: 0
9/7i, decomp:22 border 213 227 76 245 milli-err2: 15253
9/7i, decomp:22 border 213 227 76 245 milli-err2: 7210
9/7f, decomp:22 border 213 227 76 245 err2: 0.0001
5/3i, decomp:13 border 134 157 184 203 milli-err2: 0
9/7i, decomp:13 border 134 157 184 203 milli-err2: 21846
9/7i, decomp:13 border 134 157 184 203 milli-err2: 17748
9/7f, decomp:13 border 134 157 184 203 err2: 0.0001
5/3i, decomp: 1 border 204 237 6 106 milli-err2: 0
9/7i, decomp: 1 border 204 237 6 106 milli-err2: 2317
9/7i, decomp: 1 border 204 237 6 106 milli-err2: 824
9/7f, decomp: 1 border 204 237 6 106 err2: 0.0000
5/3i, decomp:28 border 76 211 13 210 milli-err2: 0
9/7i, decomp:28 border 76 211 13 210 milli-err2: 21360
9/7i, decomp:28 border 76 211 13 210 milli-err2: 11710
9/7f, decomp:28 border 76 211 13 210 err2: 0.0002
5/3i, decomp:21 border 76 99 43 123 milli-err2: 0
9/7i, decomp:21 border 76 99 43 123 milli-err2: 13513
9/7i, decomp:21 border 76 99 43 123 milli-err2: 8555
9/7f, decomp:21 border 76 99 43 123 err2: 0.0001
5/3i, decomp:15 border 192 243 174 204 milli-err2: 0
9/7i, decomp:15 border 192 243 174 204 milli-err2: 13302
9/7i, decomp:15 border 192 243 174 204 milli-err2: 7769
9/7f, decomp:15 border 192 243 174 204 err2: 0.0001
5/3i, decomp:21 border 17 68 93 204 milli-err2: 0
9/7i, decomp:21 border 17 68 93 204 milli-err2: 22975
9/7i, decomp:21 border 17 68 93 204 milli-err2: 7727
9/7f, decomp:21 border 17 68 93 204 err2: 0.0001
5/3i, decomp:11 border 142 168 82 174 milli-err2: 0
9/7i, decomp:11 border 142 168 82 174 milli-err2: 11936
9/7i, decomp:11 border 142 168 82 174 milli-err2: 12277
9/7f, decomp:11 border 142 168 82 174 err2: 0.0001
5/3i, decomp:23 border 142 209 171 235 milli-err2: 0
9/7i, decomp:23 border 142 209 171 235 milli-err2: 19428
9/7i, decomp:23 border 142 209 171 235 milli-err2: 6570
9/7f, decomp:23 border 142 209 171 235 err2: 0.0001
5/3i, decomp:30 border 37 185 79 245 milli-err2: 0
9/7i, decomp:30 border 37 185 79 245 milli-err2: 22981
9/7i, decomp:30 border 37 185 79 245 milli-err2: 12266
9/7f, decomp:30 border 37 185 79 245 err2: 0.0002
5/3i, decomp: 5 border 129 236 30 243 milli-err2: 0
9/7i, decomp: 5 border 129 236 30 243 milli-err2: 16632
9/7i, decomp: 5 border 129 236 30 243 milli-err2: 8686
9/7f, decomp: 5 border 129 236 30 243 err2: 0.0001
5/3i, decomp:10 border 5 160 146 247 milli-err2: 0
9/7i, decomp:10 border 5 160 146 247 milli-err2: 39669
9/7i, decomp:10 border 5 160 146 247 milli-err2: 12231
9/7f, decomp:10 border 5 160 146 247 err2: 0.0002
5/3i, decomp: 5 border 104 162 6 47 milli-err2: 0
9/7i, decomp: 5 border 104 162 6 47 milli-err2: 18290
9/7i, decomp: 5 border 104 162 6 47 milli-err2: 7794
9/7f, decomp: 5 border 104 162 6 47 err2: 0.0001
5/3i, decomp:24 border 78 250 102 218 milli-err2: 0
9/7i, decomp:24 border 78 250 102 218 milli-err2: 36623
9/7i, decomp:24 border 78 250 102 218 milli-err2: 11632
9/7f, decomp:24 border 78 250 102 218 err2: 0.0002
5/3i, decomp:28 border 86 98 56 79 milli-err2: 0
9/7i, decomp:28 border 86 98 56 79 milli-err2: 9891
9/7i, decomp:28 border 86 98 56 79 milli-err2: 11105
9/7f, decomp:28 border 86 98 56 79 err2: 0.0001
5/3i, decomp: 6 border 95 238 197 214 milli-err2: 0
9/7i, decomp: 6 border 95 238 197 214 milli-err2: 17172
9/7i, decomp: 6 border 95 238 197 214 milli-err2: 8308
9/7f, decomp: 6 border 95 238 197 214 err2: 0.0001
5/3i, decomp:17 border 77 169 93 165 milli-err2: 0
9/7i, decomp:17 border 77 169 93 165 milli-err2: 23573
9/7i, decomp:17 border 77 169 93 165 milli-err2: 8820
9/7f, decomp:17 border 77 169 93 165 err2: 0.0001
5/3i, decomp:22 border 178 187 7 119 milli-err2: 0
9/7i, decomp:22 border 178 187 7 119 milli-err2: 11305
9/7i, decomp:22 border 178 187 7 119 milli-err2: 5554
9/7f, decomp:22 border 178 187 7 119 err2: 0.0000

4
tests/ref/fate/jpeg2000-dcinema
View File

@ -1,3 +1,3 @@
#tb 0: 1/24
0, 0, 0, 1, 12441600, 0x35b017fd
0, 1, 1, 1, 12441600, 0xe94551b9
0, 0, 0, 1, 12441600, 0x330aac66
0, 1, 1, 1, 12441600, 0x112db395

8
tests/ref/vsynth/vsynth1-jpeg2000-97
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@ -1,4 +1,4 @@
4cac63aaf880ab0ee199ac44e520640a *tests/data/fate/vsynth1-jpeg2000-97.avi
2188956 tests/data/fate/vsynth1-jpeg2000-97.avi
d9227e7a7413cb48362654d879df985a *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo
stddev: 6.18 PSNR: 32.30 MAXDIFF: 57 bytes: 7603200/ 7603200
0c704936bf54fad2b072dc0c8c289bb7 *tests/data/fate/vsynth1-jpeg2000-97.avi
4336566 tests/data/fate/vsynth1-jpeg2000-97.avi
1207ed65ca04d2c91936c4bc73c3a562 *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo
stddev: 4.36 PSNR: 35.34 MAXDIFF: 51 bytes: 7603200/ 7603200

8
tests/ref/vsynth/vsynth2-jpeg2000-97
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@ -1,4 +1,4 @@
352d3dc81b5c78638a2e7b575ce468c2 *tests/data/fate/vsynth2-jpeg2000-97.avi
1448342 tests/data/fate/vsynth2-jpeg2000-97.avi
d7b18b6dcac0139858e64e00073db1c6 *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo
stddev: 5.35 PSNR: 33.56 MAXDIFF: 56 bytes: 7603200/ 7603200
7bb7ccf4e9743888a5bda48f431630cf *tests/data/fate/vsynth2-jpeg2000-97.avi
3124708 tests/data/fate/vsynth2-jpeg2000-97.avi
fe0f3a97aa8c0b2f02dd11ccd1b77ca6 *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo
stddev: 3.26 PSNR: 37.86 MAXDIFF: 26 bytes: 7603200/ 7603200

8
tests/ref/vsynth/vsynth3-jpeg2000-97
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@ -1,4 +1,4 @@
36dddf487c4919d890db3484ab5d6486 *tests/data/fate/vsynth3-jpeg2000-97.avi
66522 tests/data/fate/vsynth3-jpeg2000-97.avi
332c0924bc1477a41eb413455c5b9d90 *tests/data/fate/vsynth3-jpeg2000-97.out.rawvideo
stddev: 6.17 PSNR: 32.32 MAXDIFF: 51 bytes: 86700/ 86700
d551b1b1bfc691356e6f45f4386aff1d *tests/data/fate/vsynth3-jpeg2000-97.avi
92144 tests/data/fate/vsynth3-jpeg2000-97.avi
533535dad2ccc7aef3eb0e7ccb239bf2 *tests/data/fate/vsynth3-jpeg2000-97.out.rawvideo
stddev: 4.60 PSNR: 34.87 MAXDIFF: 46 bytes: 86700/ 86700

8
tests/ref/vsynth/vsynth_lena-jpeg2000-97
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@ -1,4 +1,4 @@
a39e052e7d109e33714329800c9df90f *tests/data/fate/vsynth_lena-jpeg2000-97.avi
1105046 tests/data/fate/vsynth_lena-jpeg2000-97.avi
c151476d2ed807575122064ada37d5ef *tests/data/fate/vsynth_lena-jpeg2000-97.out.rawvideo
stddev: 4.85 PSNR: 34.41 MAXDIFF: 59 bytes: 7603200/ 7603200
6600b19f6c2e84c599f37d33a295ee35 *tests/data/fate/vsynth_lena-jpeg2000-97.avi
2459730 tests/data/fate/vsynth_lena-jpeg2000-97.avi
9d9c07b0d1936810032820a08d0b0b5d *tests/data/fate/vsynth_lena-jpeg2000-97.out.rawvideo
stddev: 3.01 PSNR: 38.55 MAXDIFF: 27 bytes: 7603200/ 7603200