diff options
| -rw-r--r-- | libavcodec/jpeg2000dwt.c | 19 | ||||
| -rw-r--r-- | tests/ref/vsynth/vsynth1-jpeg2000-97 | 4 | ||||
| -rw-r--r-- | tests/ref/vsynth/vsynth2-jpeg2000-97 | 4 |
3 files changed, 10 insertions, 17 deletions
diff --git a/libavcodec/jpeg2000dwt.c b/libavcodec/jpeg2000dwt.c index 13712d9703..266edece04 100644 --- a/libavcodec/jpeg2000dwt.c +++ b/libavcodec/jpeg2000dwt.c @@ -431,13 +431,6 @@ static void sr_1d97_int(int32_t *p, int i0, int i1) extend97_int(p, i0, i1); - /*step 1*/ - for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++) - p[2 * i] = ((p[2 * i] * I_LFTG_K) + (1 << 15)) >> 16; - /* step 2*/ - for (i = i0 / 2 - 2; i < i1 / 2 + 2; i++) - p[2 * i + 1] = ((p[2 * i + 1] * I_LFTG_X) + (1 << 15)) >> 16; - /* step 3*/ for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++) p[2 * i] -= (I_LFTG_DELTA * (p[2 * i - 1] + p[2 * i + 1]) + (1 << 15)) >> 16; /* step 4 */ @@ -471,11 +464,11 @@ static void dwt_decode97_int(DWTContext *s, int32_t *t) l = line + mh; for (lp = 0; lp < lv; lp++) { int i, j = 0; - // copy with interleaving + // rescale with interleaving for (i = mh; i < lh; i += 2, j++) - l[i] = data[w * lp + j]; + l[i] = ((data[w * lp + j] * I_LFTG_K) + (1 << 15)) >> 16; for (i = 1 - mh; i < lh; i += 2, j++) - l[i] = data[w * lp + j]; + l[i] = ((data[w * lp + j] * I_LFTG_X) + (1 << 15)) >> 16; sr_1d97_int(line, mh, mh + lh); @@ -487,11 +480,11 @@ static void dwt_decode97_int(DWTContext *s, int32_t *t) l = line + mv; for (lp = 0; lp < lh; lp++) { int i, j = 0; - // copy with interleaving + // rescale with interleaving for (i = mv; i < lv; i += 2, j++) - l[i] = data[w * j + lp]; + l[i] = ((data[w * j + lp] * I_LFTG_K) + (1 << 15)) >> 16; for (i = 1 - mv; i < lv; i += 2, j++) - l[i] = data[w * j + lp]; + l[i] = ((data[w * j + lp] * I_LFTG_X) + (1 << 15)) >> 16; sr_1d97_int(line, mv, mv + lv); diff --git a/tests/ref/vsynth/vsynth1-jpeg2000-97 b/tests/ref/vsynth/vsynth1-jpeg2000-97 index f219406201..f8399f2be7 100644 --- a/tests/ref/vsynth/vsynth1-jpeg2000-97 +++ b/tests/ref/vsynth/vsynth1-jpeg2000-97 @@ -1,4 +1,4 @@ c135eb14e9f219242180270c2a242634 *tests/data/fate/vsynth1-jpeg2000-97.avi 2243132 tests/data/fate/vsynth1-jpeg2000-97.avi -30a9c13e18fe4acaf28062b5003bb671 *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo -stddev: 6.41 PSNR: 31.99 MAXDIFF: 75 bytes: 7603200/ 7603200 +e1a095b40d7f6440f6c46f2995c4759c *tests/data/fate/vsynth1-jpeg2000-97.out.rawvideo +stddev: 6.23 PSNR: 32.23 MAXDIFF: 75 bytes: 7603200/ 7603200 diff --git a/tests/ref/vsynth/vsynth2-jpeg2000-97 b/tests/ref/vsynth/vsynth2-jpeg2000-97 index 001e840561..e7fce13a25 100644 --- a/tests/ref/vsynth/vsynth2-jpeg2000-97 +++ b/tests/ref/vsynth/vsynth2-jpeg2000-97 @@ -1,4 +1,4 @@ 3ac3e49a89136bddde9e44bac3e5b4ed *tests/data/fate/vsynth2-jpeg2000-97.avi 1118952 tests/data/fate/vsynth2-jpeg2000-97.avi -9d69ac6d46152ed2d6dd6a90d5793c80 *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo -stddev: 5.32 PSNR: 33.61 MAXDIFF: 60 bytes: 7603200/ 7603200 +8ac8b9ee81fa73c873668e9f6b78764d *tests/data/fate/vsynth2-jpeg2000-97.out.rawvideo +stddev: 4.95 PSNR: 34.23 MAXDIFF: 60 bytes: 7603200/ 7603200 |