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Extended Q range Experiment.

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Corrected dc lookup table to maintain ac/dc balance
close to what it was previously.

Firstpass not being passed the adjusted Q index for
the extended range.

Change-Id: Ic0200dabda445fea03bf81067999cb2670e99b77
This commit is contained in:
Paul Wilkins 2011-11-21 14:18:11 +00:00
parent 54f090b119
commit 9bac509ac5
2 changed files with 13 additions and 14 deletions
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25
vp8/common/quant_common.c
View File

@ -15,19 +15,19 @@
#if !CONFIG_EXTEND_QRANGE
static const int dc_qlookup[QINDEX_RANGE] =
{
4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
18, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 143, 145, 148, 151, 154, 157,
};
static const int ac_qlookup[QINDEX_RANGE] =
{
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
52, 53, 54, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76,
@ -37,19 +37,18 @@ static const int ac_qlookup[QINDEX_RANGE] =
213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
};
#else
static const int dc_qlookup[QINDEX_RANGE] =
{
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42,
44, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88,
92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152,
156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 205, 210, 215, 220,
225, 230, 235, 240, 245, 250, 255, 260, 265, 270, 275, 280, 285, 290, 295, 300,
310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460,
472, 484, 496, 508, 520, 532, 544, 556, 572, 588, 608, 628, 648, 668, 692, 720,
};
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 38, 40, 42, 44, 47,
50, 53, 56, 59, 62, 65, 68, 68, 72, 76, 80, 80, 84, 84, 86, 90,
91, 96, 98, 102, 107, 112, 118, 124, 130, 136, 142, 148, 150, 156, 162, 168,
174, 180, 182, 188, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240,
244, 249, 255, 260, 264, 269, 276, 281, 288, 293, 300, 303, 307, 312, 317, 323,
328, 331, 338, 344, 347, 354, 366, 378, 386, 398, 401, 411, 422, 432, 441, 451,
464, 483, 496, 507, 520, 529, 540, 551, 570, 585, 604, 624, 645, 667, 692, 718,
};
static const int ac_qlookup[QINDEX_RANGE] =
{
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,

2
vp8/encoder/onyx_if.c
View File

@ -3337,7 +3337,7 @@ static void Pass1Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest,
(void) size;
(void) dest;
(void) frame_flags;
vp8_set_quantizer(cpi, 26);
vp8_set_quantizer(cpi, FIRSTPASS_QINDEX);
scale_and_extend_source(cpi->un_scaled_source, cpi);
vp8_first_pass(cpi);