| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <math.h> |
| #include "vpx_mem/vpx_mem.h" |
| |
| #include "onyx_int.h" |
| #include "quantize.h" |
| #include "vp8/common/quant_common.h" |
| |
| #include "vp8/common/seg_common.h" |
| |
| #ifdef ENC_DEBUG |
| extern int enc_debug; |
| #endif |
| |
| #if CONFIG_HYBRIDTRANSFORM |
| void vp8_ht_quantize_b_4x4(BLOCK *b, BLOCKD *d, TX_TYPE tx_type) { |
| int i, rc, eob; |
| int zbin; |
| int x, y, z, sz; |
| short *zbin_boost_ptr = b->zrun_zbin_boost; |
| short *coeff_ptr = b->coeff; |
| short *zbin_ptr = b->zbin; |
| short *round_ptr = b->round; |
| short *quant_ptr = b->quant; |
| unsigned char *quant_shift_ptr = b->quant_shift; |
| short *qcoeff_ptr = d->qcoeff; |
| short *dqcoeff_ptr = d->dqcoeff; |
| short *dequant_ptr = d->dequant; |
| short zbin_oq_value = b->zbin_extra; |
| |
| int const *pt_scan ; |
| |
| switch (tx_type) { |
| case ADST_DCT : |
| pt_scan = vp8_row_scan; |
| break; |
| |
| case DCT_ADST : |
| pt_scan = vp8_col_scan; |
| break; |
| |
| default : |
| pt_scan = vp8_default_zig_zag1d; |
| break; |
| } |
| |
| vpx_memset(qcoeff_ptr, 0, 32); |
| vpx_memset(dqcoeff_ptr, 0, 32); |
| |
| eob = -1; |
| |
| for (i = 0; i < b->eob_max_offset; i++) { |
| rc = pt_scan[i]; |
| z = coeff_ptr[rc]; |
| |
| zbin = zbin_ptr[rc] + *zbin_boost_ptr + zbin_oq_value; |
| zbin_boost_ptr ++; |
| |
| sz = (z >> 31); // sign of z |
| x = (z ^ sz) - sz; // x = abs(z) |
| |
| if (x >= zbin) { |
| x += round_ptr[rc]; |
| y = (((x * quant_ptr[rc]) >> 16) + x) |
| >> quant_shift_ptr[rc]; // quantize (x) |
| x = (y ^ sz) - sz; // get the sign back |
| qcoeff_ptr[rc] = x; // write to destination |
| dqcoeff_ptr[rc] = x * dequant_ptr[rc]; // dequantized value |
| |
| if (y) { |
| eob = i; // last nonzero coeffs |
| zbin_boost_ptr = b->zrun_zbin_boost; // reset zero runlength |
| } |
| } |
| } |
| |
| d->eob = eob + 1; |
| } |
| #endif |
| |
| void vp8_regular_quantize_b_4x4(BLOCK *b, BLOCKD *d) { |
| int i, rc, eob; |
| int zbin; |
| int x, y, z, sz; |
| short *zbin_boost_ptr = b->zrun_zbin_boost; |
| short *coeff_ptr = b->coeff; |
| short *zbin_ptr = b->zbin; |
| short *round_ptr = b->round; |
| short *quant_ptr = b->quant; |
| unsigned char *quant_shift_ptr = b->quant_shift; |
| short *qcoeff_ptr = d->qcoeff; |
| short *dqcoeff_ptr = d->dqcoeff; |
| short *dequant_ptr = d->dequant; |
| short zbin_oq_value = b->zbin_extra; |
| |
| vpx_memset(qcoeff_ptr, 0, 32); |
| vpx_memset(dqcoeff_ptr, 0, 32); |
| |
| eob = -1; |
| |
| for (i = 0; i < b->eob_max_offset; i++) { |
| rc = vp8_default_zig_zag1d[i]; |
| z = coeff_ptr[rc]; |
| |
| zbin = zbin_ptr[rc] + *zbin_boost_ptr + zbin_oq_value; |
| zbin_boost_ptr ++; |
| |
| sz = (z >> 31); // sign of z |
| x = (z ^ sz) - sz; // x = abs(z) |
| |
| if (x >= zbin) { |
| x += round_ptr[rc]; |
| |
| y = (((x * quant_ptr[rc]) >> 16) + x) |
| >> quant_shift_ptr[rc]; // quantize (x) |
| x = (y ^ sz) - sz; // get the sign back |
| qcoeff_ptr[rc] = x; // write to destination |
| dqcoeff_ptr[rc] = x * dequant_ptr[rc]; // dequantized value |
| |
| if (y) { |
| eob = i; // last nonzero coeffs |
| zbin_boost_ptr = b->zrun_zbin_boost; // reset zero runlength |
| } |
| } |
| } |
| |
| d->eob = eob + 1; |
| } |
| |
| void vp8_quantize_mby_4x4_c(MACROBLOCK *x) { |
| int i; |
| int has_2nd_order = x->e_mbd.mode_info_context->mbmi.mode != SPLITMV; |
| |
| for (i = 0; i < 16; i++) |
| x->quantize_b_4x4(&x->block[i], &x->e_mbd.block[i]); |
| |
| if (has_2nd_order) |
| x->quantize_b_4x4(&x->block[24], &x->e_mbd.block[24]); |
| } |
| |
| void vp8_quantize_mbuv_4x4_c(MACROBLOCK *x) { |
| int i; |
| |
| for (i = 16; i < 24; i++) |
| x->quantize_b_4x4(&x->block[i], &x->e_mbd.block[i]); |
| } |
| |
| void vp8_quantize_mb_4x4_c(MACROBLOCK *x) { |
| vp8_quantize_mby_4x4_c(x); |
| vp8_quantize_mbuv_4x4_c(x); |
| } |
| |
| void vp8_regular_quantize_b_2x2(BLOCK *b, BLOCKD *d) { |
| int i, rc, eob; |
| int zbin; |
| int x, y, z, sz; |
| short *zbin_boost_ptr = b->zrun_zbin_boost; |
| int zbin_zrun_index = 0; |
| short *coeff_ptr = b->coeff; |
| short *zbin_ptr = b->zbin; |
| short *round_ptr = b->round; |
| short *quant_ptr = b->quant; |
| unsigned char *quant_shift_ptr = b->quant_shift; |
| short *qcoeff_ptr = d->qcoeff; |
| short *dqcoeff_ptr = d->dqcoeff; |
| short *dequant_ptr = d->dequant; |
| short zbin_oq_value = b->zbin_extra; |
| // double q2nd = 4; |
| vpx_memset(qcoeff_ptr, 0, 32); |
| vpx_memset(dqcoeff_ptr, 0, 32); |
| |
| eob = -1; |
| |
| for (i = 0; i < b->eob_max_offset_8x8; i++) { |
| rc = vp8_default_zig_zag1d[i]; |
| z = coeff_ptr[rc]; |
| |
| zbin_boost_ptr = &b->zrun_zbin_boost[zbin_zrun_index]; |
| zbin_zrun_index += 4; |
| zbin = (zbin_ptr[rc] + *zbin_boost_ptr + zbin_oq_value); |
| |
| sz = (z >> 31); // sign of z |
| x = (z ^ sz) - sz; // x = abs(z) |
| |
| if (x >= zbin) { |
| x += (round_ptr[rc]); |
| y = ((int)((int)(x * quant_ptr[rc]) >> 16) + x) |
| >> quant_shift_ptr[rc]; // quantize (x) |
| x = (y ^ sz) - sz; // get the sign back |
| qcoeff_ptr[rc] = x; // write to destination |
| dqcoeff_ptr[rc] = x * dequant_ptr[rc]; // dequantized value |
| |
| if (y) { |
| eob = i; // last nonzero coeffs |
| zbin_zrun_index = 0; |
| } |
| } |
| } |
| |
| d->eob = eob + 1; |
| } |
| |
| void vp8_regular_quantize_b_8x8(BLOCK *b, BLOCKD *d) { |
| int i, rc, eob; |
| int zbin; |
| int x, y, z, sz; |
| short *zbin_boost_ptr = b->zrun_zbin_boost_8x8; |
| short *coeff_ptr = b->coeff; |
| short *zbin_ptr = b->zbin_8x8; |
| short *round_ptr = b->round; |
| short *quant_ptr = b->quant; |
| unsigned char *quant_shift_ptr = b->quant_shift; |
| short *qcoeff_ptr = d->qcoeff; |
| short *dqcoeff_ptr = d->dqcoeff; |
| short *dequant_ptr = d->dequant; |
| short zbin_oq_value = b->zbin_extra; |
| |
| vpx_memset(qcoeff_ptr, 0, 64 * sizeof(short)); |
| vpx_memset(dqcoeff_ptr, 0, 64 * sizeof(short)); |
| |
| eob = -1; |
| |
| for (i = 0; i < b->eob_max_offset_8x8; i++) { |
| rc = vp8_default_zig_zag1d_8x8[i]; |
| z = coeff_ptr[rc]; |
| |
| zbin = (zbin_ptr[rc != 0] + *zbin_boost_ptr + zbin_oq_value); |
| zbin_boost_ptr++; |
| |
| sz = (z >> 31); // sign of z |
| x = (z ^ sz) - sz; // x = abs(z) |
| |
| if (x >= zbin) { |
| x += (round_ptr[rc != 0]); |
| y = ((int)(((int)(x * quant_ptr[rc != 0]) >> 16) + x)) |
| >> quant_shift_ptr[rc != 0]; // quantize (x) |
| x = (y ^ sz) - sz; // get the sign back |
| qcoeff_ptr[rc] = x; // write to destination |
| dqcoeff_ptr[rc] = x * dequant_ptr[rc != 0]; // dequantized value |
| |
| if (y) { |
| eob = i; // last nonzero coeffs |
| zbin_boost_ptr = b->zrun_zbin_boost_8x8; |
| } |
| } |
| } |
| |
| d->eob = eob + 1; |
| } |
| |
| void vp8_quantize_mby_8x8(MACROBLOCK *x) { |
| int i; |
| int has_2nd_order = x->e_mbd.mode_info_context->mbmi.mode != SPLITMV; |
| |
| for (i = 0; i < 16; i ++) { |
| x->e_mbd.block[i].eob = 0; |
| } |
| x->e_mbd.block[24].eob = 0; |
| for (i = 0; i < 16; i += 4) |
| x->quantize_b_8x8(&x->block[i], &x->e_mbd.block[i]); |
| |
| if (has_2nd_order) |
| x->quantize_b_2x2(&x->block[24], &x->e_mbd.block[24]); |
| } |
| |
| void vp8_quantize_mbuv_8x8(MACROBLOCK *x) { |
| int i; |
| |
| for (i = 16; i < 24; i ++) |
| x->e_mbd.block[i].eob = 0; |
| for (i = 16; i < 24; i += 4) |
| x->quantize_b_8x8(&x->block[i], &x->e_mbd.block[i]); |
| } |
| |
| void vp8_quantize_mb_8x8(MACROBLOCK *x) { |
| vp8_quantize_mby_8x8(x); |
| vp8_quantize_mbuv_8x8(x); |
| } |
| |
| void vp8_quantize_mby_16x16(MACROBLOCK *x) { |
| int i; |
| |
| for (i = 0; i < 16; i++) |
| x->e_mbd.block[i].eob = 0; |
| x->e_mbd.block[24].eob = 0; |
| x->quantize_b_16x16(&x->block[0], &x->e_mbd.block[0]); |
| } |
| |
| void vp8_quantize_mb_16x16(MACROBLOCK *x) { |
| vp8_quantize_mby_16x16(x); |
| vp8_quantize_mbuv_8x8(x); |
| } |
| |
| void vp8_regular_quantize_b_16x16(BLOCK *b, BLOCKD *d) { |
| int i, rc, eob; |
| int zbin; |
| int x, y, z, sz; |
| short *zbin_boost_ptr = b->zrun_zbin_boost_16x16; |
| short *coeff_ptr = b->coeff; |
| short *zbin_ptr = b->zbin_16x16; |
| short *round_ptr = b->round; |
| short *quant_ptr = b->quant; |
| unsigned char *quant_shift_ptr = b->quant_shift; |
| short *qcoeff_ptr = d->qcoeff; |
| short *dqcoeff_ptr = d->dqcoeff; |
| short *dequant_ptr = d->dequant; |
| short zbin_oq_value = b->zbin_extra; |
| |
| vpx_memset(qcoeff_ptr, 0, 256*sizeof(short)); |
| vpx_memset(dqcoeff_ptr, 0, 256*sizeof(short)); |
| |
| eob = -1; |
| for (i = 0; i < b->eob_max_offset_16x16; i++) { |
| rc = vp8_default_zig_zag1d_16x16[i]; |
| z = coeff_ptr[rc]; |
| |
| zbin = (zbin_ptr[rc!=0] + *zbin_boost_ptr + zbin_oq_value); |
| zbin_boost_ptr ++; |
| |
| sz = (z >> 31); // sign of z |
| x = (z ^ sz) - sz; // x = abs(z) |
| |
| if (x >= zbin) { |
| x += (round_ptr[rc!=0]); |
| y = ((int)(((int)(x * quant_ptr[rc!=0]) >> 16) + x)) |
| >> quant_shift_ptr[rc!=0]; // quantize (x) |
| x = (y ^ sz) - sz; // get the sign back |
| qcoeff_ptr[rc] = x; // write to destination |
| dqcoeff_ptr[rc] = x * dequant_ptr[rc!=0]; // dequantized value |
| |
| if (y) { |
| eob = i; // last nonzero coeffs |
| zbin_boost_ptr = b->zrun_zbin_boost_16x16; |
| } |
| } |
| } |
| |
| d->eob = eob + 1; |
| } |
| |
| /* quantize_b_pair function pointer in MACROBLOCK structure is set to one of |
| * these two C functions if corresponding optimized routine is not available. |
| * NEON optimized version implements currently the fast quantization for pair |
| * of blocks. */ |
| void vp8_regular_quantize_b_4x4_pair(BLOCK *b1, BLOCK *b2, BLOCKD *d1, BLOCKD *d2) { |
| vp8_regular_quantize_b_4x4(b1, d1); |
| vp8_regular_quantize_b_4x4(b2, d2); |
| } |
| |
| static void invert_quant(short *quant, |
| unsigned char *shift, short d) { |
| unsigned t; |
| int l; |
| t = d; |
| for (l = 0; t > 1; l++) |
| t >>= 1; |
| t = 1 + (1 << (16 + l)) / d; |
| *quant = (short)(t - (1 << 16)); |
| *shift = l; |
| } |
| |
| void vp8cx_init_quantizer(VP8_COMP *cpi) { |
| int i; |
| int quant_val; |
| int Q; |
| static const int zbin_boost[16] = { 0, 0, 8, 10, 12, 14, 16, 20, |
| 24, 28, 32, 36, 40, 44, 44, 44 |
| }; |
| |
| static const int zbin_boost_8x8[64] = { 0, 0, 0, 8, 8, 8, 10, 12, |
| 14, 16, 18, 20, 22, 24, 26, 28, |
| 30, 32, 34, 36, 38, 40, 42, 44, |
| 46, 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 zbin_boost_16x16[256] = { |
| 0, 0, 0, 8, 8, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, |
| 30, 32, 34, 36, 38, 40, 42, 44, 46, 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, 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, |
| }; |
| int qrounding_factor = 48; |
| |
| |
| for (Q = 0; Q < QINDEX_RANGE; Q++) { |
| int qzbin_factor = (vp8_dc_quant(Q, 0) < 148) ? 84 : 80; |
| |
| #if CONFIG_LOSSLESS |
| if (cpi->oxcf.lossless) { |
| if (Q == 0) { |
| qzbin_factor = 64; |
| qrounding_factor = 64; |
| } |
| } |
| #endif |
| |
| // dc values |
| quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q); |
| invert_quant(cpi->Y1quant[Q] + 0, |
| cpi->Y1quant_shift[Q] + 0, quant_val); |
| cpi->Y1zbin[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y1zbin_8x8[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y1zbin_16x16[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y1round[Q][0] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.Y1dequant[Q][0] = quant_val; |
| cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7; |
| cpi->zrun_zbin_boost_y1_8x8[Q][0] = |
| ((quant_val * zbin_boost_8x8[0]) + 64) >> 7; |
| cpi->zrun_zbin_boost_y1_16x16[Q][0] = ((quant_val * zbin_boost_16x16[0]) + 64) >> 7; |
| |
| |
| quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q); |
| invert_quant(cpi->Y2quant[Q] + 0, |
| cpi->Y2quant_shift[Q] + 0, quant_val); |
| cpi->Y2zbin[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y2zbin_8x8[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y2zbin_16x16[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y2round[Q][0] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.Y2dequant[Q][0] = quant_val; |
| cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7; |
| cpi->zrun_zbin_boost_y2_8x8[Q][0] = |
| ((quant_val * zbin_boost_8x8[0]) + 64) >> 7; |
| cpi->zrun_zbin_boost_y2_16x16[Q][0] = ((quant_val * zbin_boost_16x16[0]) + 64) >> 7; |
| |
| quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q); |
| invert_quant(cpi->UVquant[Q] + 0, |
| cpi->UVquant_shift[Q] + 0, quant_val); |
| cpi->UVzbin[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->UVzbin_8x8[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->UVzbin_16x16[Q][0] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->UVround[Q][0] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.UVdequant[Q][0] = quant_val; |
| cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7; |
| cpi->zrun_zbin_boost_uv_8x8[Q][0] = |
| ((quant_val * zbin_boost_8x8[0]) + 64) >> 7; |
| cpi->zrun_zbin_boost_uv_16x16[Q][0] = ((quant_val * zbin_boost_16x16[0]) + 64) >> 7; |
| |
| // all the 4x4 ac values =; |
| for (i = 1; i < 16; i++) { |
| int rc = vp8_default_zig_zag1d[i]; |
| |
| quant_val = vp8_ac_yquant(Q); |
| invert_quant(cpi->Y1quant[Q] + rc, |
| cpi->Y1quant_shift[Q] + rc, quant_val); |
| cpi->Y1zbin[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y1round[Q][rc] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.Y1dequant[Q][rc] = quant_val; |
| cpi->zrun_zbin_boost_y1[Q][i] = |
| ((quant_val * zbin_boost[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q); |
| invert_quant(cpi->Y2quant[Q] + rc, |
| cpi->Y2quant_shift[Q] + rc, quant_val); |
| cpi->Y2zbin[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->Y2round[Q][rc] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.Y2dequant[Q][rc] = quant_val; |
| cpi->zrun_zbin_boost_y2[Q][i] = |
| ((quant_val * zbin_boost[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q); |
| invert_quant(cpi->UVquant[Q] + rc, |
| cpi->UVquant_shift[Q] + rc, quant_val); |
| cpi->UVzbin[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->UVround[Q][rc] = (qrounding_factor * quant_val) >> 7; |
| cpi->common.UVdequant[Q][rc] = quant_val; |
| cpi->zrun_zbin_boost_uv[Q][i] = |
| ((quant_val * zbin_boost[i]) + 64) >> 7; |
| } |
| |
| // 8x8 structures... only zbin seperated out for now |
| // This needs cleaning up for 8x8 especially if we are to add |
| // support for non flat Q matices |
| for (i = 1; i < 64; i++) { |
| int rc = vp8_default_zig_zag1d_8x8[i]; |
| |
| quant_val = vp8_ac_yquant(Q); |
| cpi->Y1zbin_8x8[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_y1_8x8[Q][i] = |
| ((quant_val * zbin_boost_8x8[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q); |
| cpi->Y2zbin_8x8[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_y2_8x8[Q][i] = |
| ((quant_val * zbin_boost_8x8[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q); |
| cpi->UVzbin_8x8[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_uv_8x8[Q][i] = |
| ((quant_val * zbin_boost_8x8[i]) + 64) >> 7; |
| } |
| |
| // 16x16 structures. Same comment above applies. |
| for (i = 1; i < 256; i++) { |
| int rc = vp8_default_zig_zag1d_16x16[i]; |
| |
| quant_val = vp8_ac_yquant(Q); |
| cpi->Y1zbin_16x16[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_y1_16x16[Q][i] = ((quant_val * zbin_boost_16x16[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q); |
| cpi->Y2zbin_16x16[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_y2_16x16[Q][i] = ((quant_val * zbin_boost_16x16[i]) + 64) >> 7; |
| |
| quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q); |
| cpi->UVzbin_16x16[Q][rc] = ((qzbin_factor * quant_val) + 64) >> 7; |
| cpi->zrun_zbin_boost_uv_16x16[Q][i] = ((quant_val * zbin_boost_16x16[i]) + 64) >> 7; |
| } |
| } |
| } |
| |
| void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x) { |
| int i; |
| int QIndex; |
| MACROBLOCKD *xd = &x->e_mbd; |
| int zbin_extra; |
| int segment_id = xd->mode_info_context->mbmi.segment_id; |
| |
| // Select the baseline MB Q index allowing for any segment level change. |
| if (segfeature_active(xd, segment_id, SEG_LVL_ALT_Q)) { |
| // Abs Value |
| if (xd->mb_segment_abs_delta == SEGMENT_ABSDATA) |
| QIndex = get_segdata(xd, segment_id, SEG_LVL_ALT_Q); |
| |
| // Delta Value |
| else { |
| QIndex = cpi->common.base_qindex + |
| get_segdata(xd, segment_id, SEG_LVL_ALT_Q); |
| |
| // Clamp to valid range |
| QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0; |
| } |
| } else |
| QIndex = cpi->common.base_qindex; |
| |
| // Y |
| zbin_extra = (cpi->common.Y1dequant[QIndex][1] * |
| (cpi->zbin_over_quant + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| |
| for (i = 0; i < 16; i++) { |
| x->block[i].quant = cpi->Y1quant[QIndex]; |
| x->block[i].quant_shift = cpi->Y1quant_shift[QIndex]; |
| x->block[i].zbin = cpi->Y1zbin[QIndex]; |
| x->block[i].zbin_8x8 = cpi->Y1zbin_8x8[QIndex]; |
| x->block[i].zbin_16x16 = cpi->Y1zbin_16x16[QIndex]; |
| x->block[i].round = cpi->Y1round[QIndex]; |
| x->e_mbd.block[i].dequant = cpi->common.Y1dequant[QIndex]; |
| x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex]; |
| x->block[i].zrun_zbin_boost_8x8 = cpi->zrun_zbin_boost_y1_8x8[QIndex]; |
| x->block[i].zrun_zbin_boost_16x16 = cpi->zrun_zbin_boost_y1_16x16[QIndex]; |
| x->block[i].zbin_extra = (short)zbin_extra; |
| |
| // Segment max eob offset feature. |
| if (segfeature_active(xd, segment_id, SEG_LVL_EOB)) { |
| x->block[i].eob_max_offset = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| x->block[i].eob_max_offset_8x8 = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| x->block[i].eob_max_offset_16x16 = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| } else { |
| x->block[i].eob_max_offset = 16; |
| x->block[i].eob_max_offset_8x8 = 64; |
| x->block[i].eob_max_offset_16x16 = 256; |
| } |
| } |
| |
| // UV |
| zbin_extra = (cpi->common.UVdequant[QIndex][1] * |
| (cpi->zbin_over_quant + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| |
| for (i = 16; i < 24; i++) { |
| x->block[i].quant = cpi->UVquant[QIndex]; |
| x->block[i].quant_shift = cpi->UVquant_shift[QIndex]; |
| x->block[i].zbin = cpi->UVzbin[QIndex]; |
| x->block[i].zbin_8x8 = cpi->UVzbin_8x8[QIndex]; |
| x->block[i].zbin_16x16 = cpi->UVzbin_16x16[QIndex]; |
| x->block[i].round = cpi->UVround[QIndex]; |
| x->e_mbd.block[i].dequant = cpi->common.UVdequant[QIndex]; |
| x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex]; |
| x->block[i].zrun_zbin_boost_8x8 = cpi->zrun_zbin_boost_uv_8x8[QIndex]; |
| x->block[i].zrun_zbin_boost_16x16 = cpi->zrun_zbin_boost_uv_16x16[QIndex]; |
| |
| x->block[i].zbin_extra = (short)zbin_extra; |
| |
| // Segment max eob offset feature. |
| if (segfeature_active(xd, segment_id, SEG_LVL_EOB)) { |
| x->block[i].eob_max_offset = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| x->block[i].eob_max_offset_8x8 = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| } else { |
| x->block[i].eob_max_offset = 16; |
| x->block[i].eob_max_offset_8x8 = 64; |
| } |
| } |
| |
| // Y2 |
| zbin_extra = (cpi->common.Y2dequant[QIndex][1] * |
| ((cpi->zbin_over_quant / 2) + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| |
| x->block[24].quant = cpi->Y2quant[QIndex]; |
| x->block[24].quant_shift = cpi->Y2quant_shift[QIndex]; |
| x->block[24].zbin = cpi->Y2zbin[QIndex]; |
| x->block[24].zbin_8x8 = cpi->Y2zbin_8x8[QIndex]; |
| x->block[24].zbin_16x16 = cpi->Y2zbin_16x16[QIndex]; |
| x->block[24].round = cpi->Y2round[QIndex]; |
| x->e_mbd.block[24].dequant = cpi->common.Y2dequant[QIndex]; |
| x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex]; |
| x->block[24].zrun_zbin_boost_8x8 = cpi->zrun_zbin_boost_y2_8x8[QIndex]; |
| x->block[24].zrun_zbin_boost_16x16 = cpi->zrun_zbin_boost_y2_16x16[QIndex]; |
| x->block[24].zbin_extra = (short)zbin_extra; |
| |
| // TBD perhaps not use for Y2 |
| // Segment max eob offset feature. |
| if (segfeature_active(xd, segment_id, SEG_LVL_EOB)) { |
| x->block[24].eob_max_offset = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| x->block[24].eob_max_offset_8x8 = |
| get_segdata(xd, segment_id, SEG_LVL_EOB); |
| } else { |
| x->block[24].eob_max_offset = 16; |
| x->block[24].eob_max_offset_8x8 = 4; |
| } |
| |
| /* save this macroblock QIndex for vp8_update_zbin_extra() */ |
| x->e_mbd.q_index = QIndex; |
| } |
| |
| void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x) { |
| int i; |
| int QIndex = x->e_mbd.q_index; |
| int zbin_extra; |
| |
| // Y |
| zbin_extra = (cpi->common.Y1dequant[QIndex][1] * |
| (cpi->zbin_over_quant + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| for (i = 0; i < 16; i++) { |
| x->block[i].zbin_extra = (short)zbin_extra; |
| } |
| |
| // UV |
| zbin_extra = (cpi->common.UVdequant[QIndex][1] * |
| (cpi->zbin_over_quant + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| |
| for (i = 16; i < 24; i++) { |
| x->block[i].zbin_extra = (short)zbin_extra; |
| } |
| |
| // Y2 |
| zbin_extra = (cpi->common.Y2dequant[QIndex][1] * |
| ((cpi->zbin_over_quant / 2) + |
| cpi->zbin_mode_boost + |
| x->act_zbin_adj)) >> 7; |
| |
| x->block[24].zbin_extra = (short)zbin_extra; |
| } |
| |
| void vp8cx_frame_init_quantizer(VP8_COMP *cpi) { |
| // Clear Zbin mode boost for default case |
| cpi->zbin_mode_boost = 0; |
| |
| // MB level quantizer setup |
| vp8cx_mb_init_quantizer(cpi, &cpi->mb); |
| } |
| |
| void vp8_set_quantizer(struct VP8_COMP *cpi, int Q) { |
| VP8_COMMON *cm = &cpi->common; |
| |
| cm->base_qindex = Q; |
| |
| // if any of the delta_q values are changing update flag will |
| // have to be set. |
| cm->y1dc_delta_q = 0; |
| cm->y2ac_delta_q = 0; |
| cm->uvdc_delta_q = 0; |
| cm->uvac_delta_q = 0; |
| cm->y2dc_delta_q = 0; |
| |
| // quantizer has to be reinitialized if any delta_q changes. |
| // As there are not any here for now this is inactive code. |
| // if(update) |
| // vp8cx_init_quantizer(cpi); |
| } |
