[FFmpeg-cvslog] avcodec/jpeg2000dec: Merge i_stepsize/2 decoder special case into dequant
Michael Niedermayer
git at videolan.org
Sun Jun 28 15:30:22 CEST 2015
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Jun 28 14:43:44 2015 +0200| [96e73fa6494194d8c918e75e23df293327d5228a] | committer: Michael Niedermayer
avcodec/jpeg2000dec: Merge i_stepsize/2 decoder special case into dequant
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=96e73fa6494194d8c918e75e23df293327d5228a
---
libavcodec/jpeg2000.c | 5 +++--
libavcodec/jpeg2000dec.c | 6 +++---
tests/ref/fate/jpeg2000-dcinema | 4 ++--
tests/ref/vsynth/vsynth1-jpeg2000-97 | 2 +-
tests/ref/vsynth/vsynth2-jpeg2000-97 | 2 +-
tests/ref/vsynth/vsynth3-jpeg2000-97 | 2 +-
tests/ref/vsynth/vsynth_lena-jpeg2000-97 | 2 +-
7 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c
index b60e770..683728e 100644
--- a/libavcodec/jpeg2000.c
+++ b/libavcodec/jpeg2000.c
@@ -330,13 +330,14 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
band->f_stepsize *= pow(F_LFTG_K, 2*(codsty->nreslevels2decode - reslevelno) + lband - 2);
}
}
+
+ band->i_stepsize = band->f_stepsize * (1 << 15);
+
/* 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))
band->f_stepsize *= 0.5;
- band->i_stepsize = band->f_stepsize * (1 << 15);
-
/* computation of tbx_0, tbx_1, tby_0, tby_1
* see ISO/IEC 15444-1:2002 B.5 eq. B-15 and tbl B.1
* codeblock width and height is computed for
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 7445942..def8d4c 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1559,13 +1559,13 @@ static void dequantization_int(int x, int y, Jpeg2000Cblk *cblk,
for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j) {
int32_t *datap = &comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * (y + j) + x];
int *src = t1->data + j*t1->stride;
- if (band->i_stepsize == 16384) {
+ if (band->i_stepsize == 32768) {
for (i = 0; i < w; ++i)
datap[i] = src[i] / 2;
} else {
// This should be VERY uncommon
for (i = 0; i < w; ++i)
- datap[i] = (src[i] * (int64_t)band->i_stepsize) / 32768;
+ datap[i] = (src[i] * (int64_t)band->i_stepsize) / 65536;
}
}
}
@@ -1580,7 +1580,7 @@ static void dequantization_int_97(int x, int y, Jpeg2000Cblk *cblk,
int32_t *datap = &comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * (y + j) + x];
int *src = t1->data + j*t1->stride;
for (i = 0; i < w; ++i)
- datap[i] = (src[i] * (int64_t)band->i_stepsize + (1<<14)) >> 15;
+ datap[i] = (src[i] * (int64_t)band->i_stepsize + (1<<15)) >> 16;
}
}
diff --git a/tests/ref/fate/jpeg2000-dcinema b/tests/ref/fate/jpeg2000-dcinema
index c7bf52a..08bbfdc 100644
--- a/tests/ref/fate/jpeg2000-dcinema
+++ b/tests/ref/fate/jpeg2000-dcinema
@@ -1,3 +1,3 @@
#tb 0: 1/24
-0, 0, 0, 1, 12441600, 0xda6b6cde
-0, 1, 1, 1, 12441600, 0xb0994664
+0, 0, 0, 1, 12441600, 0xfcf6a127
+0, 1, 1, 1, 12441600, 0x577b6a64
diff --git a/tests/ref/vsynth/vsynth1-jpeg2000-97 b/tests/ref/vsynth/vsynth1-jpeg2000-97
index 78dc6ad..32c8a52 100644
--- a/tests/ref/vsynth/vsynth1-jpeg2000-97
+++ b/tests/ref/vsynth/vsynth1-jpeg2000-97
@@ -1,4 +1,4 @@
a19cc0e1a1c1bf76ff5a0b63a0bdfbd1 *tests/data/fate/vsynth1-jpeg2000-97.avi
3654420 tests/data/fate/vsynth1-jpeg2000-97.avi
-3b71c0f8aebf45122da77d892a6ebf00 *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo
+5073771a78e1f5366a7eb0df341662fc *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo
stddev: 4.23 PSNR: 35.59 MAXDIFF: 53 bytes: 7603200/ 7603200
diff --git a/tests/ref/vsynth/vsynth2-jpeg2000-97 b/tests/ref/vsynth/vsynth2-jpeg2000-97
index 7ba2d9f..d325271 100644
--- a/tests/ref/vsynth/vsynth2-jpeg2000-97
+++ b/tests/ref/vsynth/vsynth2-jpeg2000-97
@@ -1,4 +1,4 @@
b86217f0bcbd84a9368ad3f98af32157 *tests/data/fate/vsynth2-jpeg2000-97.avi
2448506 tests/data/fate/vsynth2-jpeg2000-97.avi
-4d9d9db91075a1eca2a6b9f152e4defc *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo
+a6e2453118a0de135836a868b2ca0e60 *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo
stddev: 3.23 PSNR: 37.94 MAXDIFF: 29 bytes: 7603200/ 7603200
diff --git a/tests/ref/vsynth/vsynth3-jpeg2000-97 b/tests/ref/vsynth/vsynth3-jpeg2000-97
index caf8d9d..2c8b5ab 100644
--- a/tests/ref/vsynth/vsynth3-jpeg2000-97
+++ b/tests/ref/vsynth/vsynth3-jpeg2000-97
@@ -1,4 +1,4 @@
5e17fdaae1a22f3eef8c82b512e4b1b9 *tests/data/fate/vsynth3-jpeg2000-97.avi
83670 tests/data/fate/vsynth3-jpeg2000-97.avi
-8ec04513b2e6645c9ea340e3fe9fe8f2 *tests/data/fate/vsynth3-jpeg2000-97.out.rawvideo
+0cd707bfb1bbe5312b00c094f695b1fa *tests/data/fate/vsynth3-jpeg2000-97.out.rawvideo
stddev: 4.52 PSNR: 35.02 MAXDIFF: 47 bytes: 86700/ 86700
diff --git a/tests/ref/vsynth/vsynth_lena-jpeg2000-97 b/tests/ref/vsynth/vsynth_lena-jpeg2000-97
index ee5ad31..194e9bf 100644
--- a/tests/ref/vsynth/vsynth_lena-jpeg2000-97
+++ b/tests/ref/vsynth/vsynth_lena-jpeg2000-97
@@ -1,4 +1,4 @@
ca78db12e1af7cbf44fdce165aaa5130 *tests/data/fate/vsynth_lena-jpeg2000-97.avi
1918756 tests/data/fate/vsynth_lena-jpeg2000-97.avi
-5fd8a2e35503b48af302b3ef5e317683 *tests/data/fate/vsynth_lena-jpeg2000-97.out.rawvideo
+93a4ba0c230f2430a813df594676e58a *tests/data/fate/vsynth_lena-jpeg2000-97.out.rawvideo
stddev: 2.84 PSNR: 39.04 MAXDIFF: 28 bytes: 7603200/ 7603200
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