dv: more precise weight table for 8x8

It is derived from the actual equations of the specs. In
particular, it is closer to the inverse of what the encoder uses.

fate tests accordingly updated.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

8 files changed, 19 insertions, 19 deletions

diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c
index 007976e279..d7bee71f04 100644
--- a/libavcodec/dvdata.c
+++ b/libavcodec/dvdata.c
@@ -70,14 +70,14 @@ const uint8_t ff_dv_quant_shifts[22][4] = {
 const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 };
 
 const uint16_t ff_dv_iweight_88[64] = {
-    32768, 16710, 16710, 17735, 17015, 17735, 18197, 18079,
-    18079, 18197, 18725, 18559, 19196, 18559, 18725, 19284,
-    19108, 19692, 19692, 19108, 19284, 21400, 19645, 20262,
-    20214, 20262, 19645, 21400, 22733, 21845, 20867, 20815,
-    20815, 20867, 21845, 22733, 23173, 23173, 21400, 21400,
-    21400, 23173, 23173, 24600, 23764, 22017, 22017, 23764,
-    24600, 25267, 24457, 22672, 24457, 25267, 25971, 25191,
-    25191, 25971, 26715, 27962, 26715, 29642, 29642, 31536,
+    32768, 16705, 16705, 17734, 17032, 17734, 18205, 18081,
+    18081, 18205, 18725, 18562, 19195, 18562, 18725, 19266,
+    19091, 19705, 19705, 19091, 19266, 21407, 19643, 20267,
+    20228, 20267, 19643, 21407, 22725, 21826, 20853, 20806,
+    20806, 20853, 21826, 22725, 23170, 23170, 21407, 21400,
+    21407, 23170, 23170, 24598, 23786, 22018, 22018, 23786,
+    24598, 25251, 24465, 22654, 24465, 25251, 25972, 25172,
+    25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521,
 };
 const uint16_t ff_dv_iweight_248[64] = {
     32768, 17735, 16710, 18079, 18725, 21400, 17735, 19196,
diff --git a/tests/ref/lavf/dv_fmt b/tests/ref/lavf/dv_fmt
index 3c8e5b1e2e..b152c84ca8 100644
--- a/tests/ref/lavf/dv_fmt
+++ b/tests/ref/lavf/dv_fmt
@@ -1,9 +1,9 @@
 11be3e5caa2892236b3475c3f7807b76 *./tests/data/lavf/lavf.dv
 3600000 ./tests/data/lavf/lavf.dv
-./tests/data/lavf/lavf.dv CRC=0x25bdd732
+./tests/data/lavf/lavf.dv CRC=0x0b2cd3ec
 e9949bc767924e1e7d28856029fee024 *./tests/data/lavf/lavf.dv
 3480000 ./tests/data/lavf/lavf.dv
-./tests/data/lavf/lavf.dv CRC=0xc4f27ca7
+./tests/data/lavf/lavf.dv CRC=0xfab17c4a
 87d3b20f656235671383a7eaa2f66330 *./tests/data/lavf/lavf.dv
 3600000 ./tests/data/lavf/lavf.dv
-./tests/data/lavf/lavf.dv CRC=0x0e868a82
+./tests/data/lavf/lavf.dv CRC=0xf3e6873c
diff --git a/tests/ref/vsynth/vsynth1-dv b/tests/ref/vsynth/vsynth1-dv
index d051e8d810..6237b078c5 100644
--- a/tests/ref/vsynth/vsynth1-dv
+++ b/tests/ref/vsynth/vsynth1-dv
@@ -1,4 +1,4 @@
 4d572f758b55a1756adf9f54132f3b9e *tests/data/fate/vsynth1-dv.dv
 7200000 tests/data/fate/vsynth1-dv.dv
-02ac7cdeab91d4d5621e7ce96dddc498 *tests/data/fate/vsynth1-dv.out.rawvideo
+1cda5a62c3a2f17cc7d5b4cddccf2524 *tests/data/fate/vsynth1-dv.out.rawvideo
 stddev:    6.90 PSNR: 31.34 MAXDIFF:   76 bytes:  7603200/  7603200
diff --git a/tests/ref/vsynth/vsynth1-dv-411 b/tests/ref/vsynth/vsynth1-dv-411
index bc4b8026a4..48e01a1403 100644
--- a/tests/ref/vsynth/vsynth1-dv-411
+++ b/tests/ref/vsynth/vsynth1-dv-411
@@ -1,4 +1,4 @@
 f179899efba432c6f01149c36c709092 *tests/data/fate/vsynth1-dv-411.dv
 7200000 tests/data/fate/vsynth1-dv-411.dv
-53946d51762b7826773e681fb02f377b *tests/data/fate/vsynth1-dv-411.out.rawvideo
-stddev:    9.45 PSNR: 28.62 MAXDIFF:   84 bytes:  7603200/  7603200
+48904744fabbbc3421a762f615ef6456 *tests/data/fate/vsynth1-dv-411.out.rawvideo
+stddev:    9.44 PSNR: 28.62 MAXDIFF:   84 bytes:  7603200/  7603200
diff --git a/tests/ref/vsynth/vsynth1-dv-50 b/tests/ref/vsynth/vsynth1-dv-50
index e747075b22..d5da88d78c 100644
--- a/tests/ref/vsynth/vsynth1-dv-50
+++ b/tests/ref/vsynth/vsynth1-dv-50
@@ -1,4 +1,4 @@
 a193c5f92bf6e74c604e759d5f4f0f94 *tests/data/fate/vsynth1-dv-50.dv
 14400000 tests/data/fate/vsynth1-dv-50.dv
-a2ff093e93ffed10f730fa21df02fc50 *tests/data/fate/vsynth1-dv-50.out.rawvideo
+41c4df5f2d876fcd5245643b9ded6711 *tests/data/fate/vsynth1-dv-50.out.rawvideo
 stddev:    1.72 PSNR: 43.38 MAXDIFF:   29 bytes:  7603200/  7603200
diff --git a/tests/ref/vsynth/vsynth2-dv b/tests/ref/vsynth/vsynth2-dv
index 0d1465cfc7..7bcc5ad4d0 100644
--- a/tests/ref/vsynth/vsynth2-dv
+++ b/tests/ref/vsynth/vsynth2-dv
@@ -1,4 +1,4 @@
 85b8d55b0b68bb3fc2e90babb580f9b7 *tests/data/fate/vsynth2-dv.dv
 7200000 tests/data/fate/vsynth2-dv.dv
-7ec62bd3350a6848364669e6e1e4b9cc *tests/data/fate/vsynth2-dv.out.rawvideo
-stddev:    1.71 PSNR: 43.47 MAXDIFF:   33 bytes:  7603200/  7603200
+7dac420637360b031ccae7c5a69c5e0c *tests/data/fate/vsynth2-dv.out.rawvideo
+stddev:    1.70 PSNR: 43.47 MAXDIFF:   33 bytes:  7603200/  7603200
diff --git a/tests/ref/vsynth/vsynth2-dv-411 b/tests/ref/vsynth/vsynth2-dv-411
index d0e6d291ba..541673ab97 100644
--- a/tests/ref/vsynth/vsynth2-dv-411
+++ b/tests/ref/vsynth/vsynth2-dv-411
@@ -1,4 +1,4 @@
 e428508f400327aeb96969c08fb9e1b5 *tests/data/fate/vsynth2-dv-411.dv
 7200000 tests/data/fate/vsynth2-dv-411.dv
-3cd4b85065d67bfb7fbab3bea4039711 *tests/data/fate/vsynth2-dv-411.out.rawvideo
+713ed907fde448c603d6e9aee5efedd1 *tests/data/fate/vsynth2-dv-411.out.rawvideo
 stddev:    2.89 PSNR: 38.91 MAXDIFF:   45 bytes:  7603200/  7603200
diff --git a/tests/ref/vsynth/vsynth2-dv-50 b/tests/ref/vsynth/vsynth2-dv-50
index c5ac608aa2..4aecdb0ccb 100644
--- a/tests/ref/vsynth/vsynth2-dv-50
+++ b/tests/ref/vsynth/vsynth2-dv-50
@@ -1,4 +1,4 @@
 0032a07167199e6f49e07fa7ed4d5f62 *tests/data/fate/vsynth2-dv-50.dv
 14400000 tests/data/fate/vsynth2-dv-50.dv
-af3f2dd5ab62c1a1d98b07d4aeb6852f *tests/data/fate/vsynth2-dv-50.out.rawvideo
+56c77e537291536b242857d1056de30c *tests/data/fate/vsynth2-dv-50.out.rawvideo
 stddev:    0.82 PSNR: 49.82 MAXDIFF:   12 bytes:  7603200/  7603200