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added separate rounding/zbin constants for 2nd order 

This allows experiments of using different rounding and
zerobin constants for 2nd order blocks.

Change-Id: Idd829adba3edd1f713c66151a8d29bb245e33a71
This commit is contained in:
Yaowu Xu 2010-08-16 16:16:24 -07:00 коммит произвёл John Koleszar
Родитель 23216211bc
Коммит fca129203a
1 изменённых файлов: 51 добавлений и 8 удалений
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59
vp8/encoder/encodeframe.c
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@ -101,6 +101,49 @@ static const int qzbin_factors[129] =
80, 80, 80, 80, 80, 80, 80, 80,
80,
};
static const int qrounding_factors_y2[129] =
{
56, 56, 56, 56, 48, 48, 56, 56,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48,
};
static const int qzbin_factors_y2[129] =
{
72, 72, 72, 72, 80, 80, 72, 72,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80,
};
//#define EXACT_QUANT
#ifdef EXACT_QUANT
static void vp8cx_invert_quant(short *quant, short *shift, short d)
@ -138,8 +181,8 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
vp8cx_invert_quant(cpi->Y2quant[Q][0] + 0,
cpi->Y2quant_shift[Q][0] + 0, quant_val);
cpi->Y2zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->Y2zbin[Q][0][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][0][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][0][0] = quant_val;
cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
@ -169,8 +212,8 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
vp8cx_invert_quant(cpi->Y2quant[Q][r] + c,
cpi->Y2quant_shift[Q][r] + c, quant_val);
cpi->Y2zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->Y2zbin[Q][r][c] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][r][c] = (qrounding_factors_y2[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][r][c] = quant_val;
cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
@ -206,8 +249,8 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
cpi->Y2quant[Q][0][0] = (1 << 16) / quant_val;
cpi->Y2zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->Y2zbin[Q][0][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][0][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][0][0] = quant_val;
cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
@ -234,8 +277,8 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
cpi->Y2quant[Q][r][c] = (1 << 16) / quant_val;
cpi->Y2zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->Y2zbin[Q][r][c] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][r][c] = (qrounding_factors_y2[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][r][c] = quant_val;
cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;