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dv: more precise weight table for 8x8

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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>
This commit is contained in:
Christophe Gisquet 2014-10-25 11:19:22 +00:00 committed by Michael Niedermayer
parent 80b29c2d0c
commit 1086f09da3
8 changed files with 19 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
libavcodec/dvdata.c
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@ -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,

6
tests/ref/lavf/dv_fmt
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@ -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

2
tests/ref/vsynth/vsynth1-dv
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@ -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

4
tests/ref/vsynth/vsynth1-dv-411
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@ -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

2
tests/ref/vsynth/vsynth1-dv-50
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@ -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

4
tests/ref/vsynth/vsynth2-dv
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@ -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

2
tests/ref/vsynth/vsynth2-dv-411
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@ -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

2
tests/ref/vsynth/vsynth2-dv-50
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@ -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