avcodec/simple_idct_template: fix row rounder

MSE changes from 0.04890000 to 0.02969844
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/simple_idct_template.c

@@ -136,7 +136,7 @@ static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)
     }
 #endif
 
-    a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1));
+    a0 = (W4 * row[0]) + (1 << (ROW_SHIFT + extra_shift - 1));
     a1 = a0;
     a2 = a0;
     a3 = a0;

tests/ref/fate/prores-422

 #tb 0: 100/2997
-0,          0,          0,        1,  8294400, 0xdb4ce06a
-0,          1,          1,        1,  8294400, 0xdb4ce06a
+0,          0,          0,        1,  8294400, 0x57127dd9
+0,          1,          1,        1,  8294400, 0x57127dd9

tests/ref/fate/prores-422_hq

 #tb 0: 100/2997
-0,          0,          0,        1,  8294400, 0x9b2c65b0
-0,          1,          1,        1,  8294400, 0x9b2c65b0
+0,          0,          0,        1,  8294400, 0x978851f4
+0,          1,          1,        1,  8294400, 0x978851f4

tests/ref/fate/prores-422_lt

 #tb 0: 100/2997
-0,          0,          0,        1,  8294400, 0xaceddd97
-0,          1,          1,        1,  8294400, 0xaceddd97
+0,          0,          0,        1,  8294400, 0xdaff4019
+0,          1,          1,        1,  8294400, 0xdaff4019

tests/ref/fate/prores-422_proxy

 #tb 0: 100/2997
-0,          0,          0,        1,  8294400, 0x3e3e9e16
-0,          1,          1,        1,  8294400, 0x3e3e9e16
+0,          0,          0,        1,  8294400, 0x007ba770
+0,          1,          1,        1,  8294400, 0x007ba770

tests/ref/fate/prores-alpha

 #tb 0: 100/2997
-0,          0,          0,        1, 16588800, 0x52b1b7fe
-0,          1,          1,        1, 16588800, 0x52b1b7fe
+0,          0,          0,        1, 16588800, 0x8e4dac48
+0,          1,          1,        1, 16588800, 0x8e4dac48

tests/ref/fate/prores-alpha_skip

 #tb 0: 100/2997
-0,          0,          0,        1, 12441600, 0x16ba9193
-0,          1,          1,        1, 12441600, 0x16ba9193
+0,          0,          0,        1, 12441600, 0xf11685dd
+0,          1,          1,        1, 12441600, 0xf11685dd

tests/ref/fate/prores-transparency

 #tb 0: 1/25
 #tb 1: 1/48000
-0,          0,          0,        1, 16588800, 0x93bbc444
+0,          0,          0,        1, 16588800, 0x7163b01a
 1,          0,          0,     1024,     4096, 0x00000000
 1,       1024,       1024,      896,     3584, 0x00000000

tests/ref/fate/prores-transparency_skip

 #tb 0: 1/25
 #tb 1: 1/48000
-0,          0,          0,        1, 12441600, 0xec522972
+0,          0,          0,        1, 12441600, 0x627d1548
 1,          0,          0,     1024,     4096, 0x00000000
 1,       1024,       1024,      896,     3584, 0x00000000

tests/ref/vsynth/vsynth1-prores

 176b9fa03cc0946c6a41f2dcfad46805 *tests/data/fate/vsynth1-prores.mov
 5022821 tests/data/fate/vsynth1-prores.mov
-3356f8c3b753acbbe217e7a642e2bd93 *tests/data/fate/vsynth1-prores.out.rawvideo
+fb4a9e025d12afc0dbbca8d82831858f *tests/data/fate/vsynth1-prores.out.rawvideo
 stddev:    2.47 PSNR: 40.27 MAXDIFF:   31 bytes:  7603200/  7603200

tests/ref/vsynth/vsynth1-prores_ks

 1d5522ee2fb507a66d236a09a172dc16 *tests/data/fate/vsynth1-prores_ks.mov
 3858911 tests/data/fate/vsynth1-prores_ks.mov
-576f494f8b01a787e97876d0c95e4e4b *tests/data/fate/vsynth1-prores_ks.out.rawvideo
+100eb002413fe7a632d440dfbdf7e3ff *tests/data/fate/vsynth1-prores_ks.out.rawvideo
 stddev:    3.17 PSNR: 38.09 MAXDIFF:   39 bytes:  7603200/  7603200

tests/ref/vsynth/vsynth2-prores

 af885572d77d28e5ede27932bd68cdde *tests/data/fate/vsynth2-prores.mov
 2844076 tests/data/fate/vsynth2-prores.mov
-9ee2e0a1645e4d64a98b99d03fa62c28 *tests/data/fate/vsynth2-prores.out.rawvideo
+387a3c23586c679b411c3eff2c9d9d06 *tests/data/fate/vsynth2-prores.out.rawvideo
 stddev:    1.31 PSNR: 45.77 MAXDIFF:   11 bytes:  7603200/  7603200

tests/ref/vsynth/vsynth2-prores_ks

 c1c71cf2dbd6e332aacb6ab1c6affa59 *tests/data/fate/vsynth2-prores_ks.mov
 3884596 tests/data/fate/vsynth2-prores_ks.mov
-0e80f4c8523a5968dc461dd374a64b00 *tests/data/fate/vsynth2-prores_ks.out.rawvideo
-stddev:    0.92 PSNR: 48.77 MAXDIFF:   10 bytes:  7603200/  7603200
+6cfe987de99cf8ac9d43bdc5cd150838 *tests/data/fate/vsynth2-prores_ks.out.rawvideo
+stddev:    0.92 PSNR: 48.78 MAXDIFF:   10 bytes:  7603200/  7603200