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dv: fix weight table for 2x4x8 transform

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The coefficients must be in the appropriate zigzag scan order.
Also fix their values at the same time, as they were pretty wrong.

Fixes ticket #2970.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
2014-10-25 11:19:23 +00:00
committed by Michael Niedermayer
parent 2060f4cbba
commit 6fe02d25ee
1 changed files with 8 additions and 8 deletions
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16
libavcodec/dvdata.c
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@@ -80,14 +80,14 @@ const uint16_t ff_dv_iweight_88[64] = {
25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521,
};
const uint16_t ff_dv_iweight_248[64] = {
32768, 17735, 16710, 18079, 18725, 21400, 17735, 19196,
19108, 21845, 16384, 17735, 18725, 21400, 16710, 18079,
20262, 23173, 18197, 19692, 18725, 20262, 20815, 23764,
17735, 19196, 19108, 21845, 20262, 23173, 18197, 19692,
21400, 24457, 19284, 20867, 21400, 23173, 22017, 25191,
18725, 20262, 20815, 23764, 21400, 24457, 19284, 20867,
24457, 27962, 22733, 24600, 25971, 29642, 21400, 23173,
22017, 25191, 24457, 27962, 22733, 24600, 25971, 29642,
32768, 16384, 16705, 16705, 17734, 17734, 17734, 17734,
18081, 18081, 18725, 18725, 21407, 21407, 19091, 19091,
19195, 19195, 18205, 18205, 18725, 18725, 19705, 19705,
20267, 20267, 21826, 21826, 23170, 23170, 20806, 20806,
20267, 20267, 19266, 19266, 21407, 21407, 20853, 20853,
21400, 21400, 23786, 23786, 24465, 24465, 22018, 22018,
23170, 23170, 22725, 22725, 24598, 24598, 24465, 24465,
25172, 25172, 27969, 27969, 25972, 25972, 29692, 29692
};
/**