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1 /*
2  * Copyright (c) 2022, Alliance for Open Media. All rights reserved
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #include <arm_neon.h>
13 #include <assert.h>
14 
15 #include "aom_dsp/quantize.h"
16 #include "aom_dsp/arm/mem_neon.h"
17 
18 #include "av1/common/quant_common.h"
19 #include "av1/encoder/av1_quantize.h"
20 
sum_abs_coeff(const uint32x4_t a)21 static INLINE uint32_t sum_abs_coeff(const uint32x4_t a) {
22 #if defined(__aarch64__)
23   return vaddvq_u32(a);
24 #else
25   const uint64x2_t b = vpaddlq_u32(a);
26   const uint64x1_t c = vadd_u64(vget_low_u64(b), vget_high_u64(b));
27   return (uint32_t)vget_lane_u64(c, 0);
28 #endif
29 }
30 
31 static INLINE uint16x4_t
quantize_4(const tran_low_t * coeff_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,int32x4_t v_quant_s32,int32x4_t v_dequant_s32,int32x4_t v_round_s32,int32x4_t v_zbin_s32,int32x4_t v_quant_shift_s32,int log_scale)32 quantize_4(const tran_low_t *coeff_ptr, tran_low_t *qcoeff_ptr,
33            tran_low_t *dqcoeff_ptr, int32x4_t v_quant_s32,
34            int32x4_t v_dequant_s32, int32x4_t v_round_s32, int32x4_t v_zbin_s32,
35            int32x4_t v_quant_shift_s32, int log_scale) {
36   const int32x4_t v_coeff = vld1q_s32(coeff_ptr);
37   const int32x4_t v_coeff_sign =
38       vreinterpretq_s32_u32(vcltq_s32(v_coeff, vdupq_n_s32(0)));
39   const int32x4_t v_abs_coeff = vabsq_s32(v_coeff);
40   // if (abs_coeff < zbins[rc != 0]),
41   const uint32x4_t v_zbin_mask = vcgeq_s32(v_abs_coeff, v_zbin_s32);
42   const int32x4_t v_log_scale = vdupq_n_s32(log_scale);
43   // const int64_t tmp = (int64_t)abs_coeff + log_scaled_round;
44   const int32x4_t v_tmp = vaddq_s32(v_abs_coeff, v_round_s32);
45   //  const int32_t tmpw32 = tmp * wt;
46   const int32x4_t v_tmpw32 = vmulq_s32(v_tmp, vdupq_n_s32((1 << AOM_QM_BITS)));
47   //  const int32_t tmp2 = (int32_t)((tmpw32 * quant64) >> 16);
48   const int32x4_t v_tmp2 = vqdmulhq_s32(v_tmpw32, v_quant_s32);
49   // const int32_t tmp3 =
50   //    ((((tmp2 + tmpw32)<< log_scale) * (int64_t)(quant_shift << 15)) >> 32);
51   const int32x4_t v_tmp3 = vqdmulhq_s32(
52       vshlq_s32(vaddq_s32(v_tmp2, v_tmpw32), v_log_scale), v_quant_shift_s32);
53   // const int abs_qcoeff = vmask ? (int)tmp3 >> AOM_QM_BITS : 0;
54   const int32x4_t v_abs_qcoeff = vandq_s32(vreinterpretq_s32_u32(v_zbin_mask),
55                                            vshrq_n_s32(v_tmp3, AOM_QM_BITS));
56   // const tran_low_t abs_dqcoeff = (abs_qcoeff * dequant_iwt) >> log_scale;
57   // vshlq_s32 will shift right if shift value is negative.
58   const int32x4_t v_abs_dqcoeff =
59       vshlq_s32(vmulq_s32(v_abs_qcoeff, v_dequant_s32), vnegq_s32(v_log_scale));
60   //  qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
61   const int32x4_t v_qcoeff =
62       vsubq_s32(veorq_s32(v_abs_qcoeff, v_coeff_sign), v_coeff_sign);
63   //  dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign);
64   const int32x4_t v_dqcoeff =
65       vsubq_s32(veorq_s32(v_abs_dqcoeff, v_coeff_sign), v_coeff_sign);
66 
67   vst1q_s32(qcoeff_ptr, v_qcoeff);
68   vst1q_s32(dqcoeff_ptr, v_dqcoeff);
69 
70   // Used to find eob.
71   const uint32x4_t nz_qcoeff_mask = vcgtq_s32(v_abs_qcoeff, vdupq_n_s32(0));
72   return vmovn_u32(nz_qcoeff_mask);
73 }
74 
get_max_lane_eob(const int16_t * iscan,int16x8_t v_eobmax,uint16x8_t v_mask)75 static INLINE int16x8_t get_max_lane_eob(const int16_t *iscan,
76                                          int16x8_t v_eobmax,
77                                          uint16x8_t v_mask) {
78   const int16x8_t v_iscan = vld1q_s16(&iscan[0]);
79   const int16x8_t v_iscan_plus1 = vaddq_s16(v_iscan, vdupq_n_s16(1));
80   const int16x8_t v_nz_iscan = vbslq_s16(v_mask, v_iscan_plus1, vdupq_n_s16(0));
81   return vmaxq_s16(v_eobmax, v_nz_iscan);
82 }
83 
get_min_max_lane_eob(const int16_t * iscan,int16x8_t * v_eobmin,int16x8_t * v_eobmax,uint16x8_t v_mask,intptr_t n_coeffs)84 static INLINE void get_min_max_lane_eob(const int16_t *iscan,
85                                         int16x8_t *v_eobmin,
86                                         int16x8_t *v_eobmax, uint16x8_t v_mask,
87                                         intptr_t n_coeffs) {
88   const int16x8_t v_iscan = vld1q_s16(&iscan[0]);
89   const int16x8_t v_nz_iscan_max = vbslq_s16(v_mask, v_iscan, vdupq_n_s16(-1));
90 #if SKIP_EOB_FACTOR_ADJUST
91   const int16x8_t v_nz_iscan_min =
92       vbslq_s16(v_mask, v_iscan, vdupq_n_s16(n_coeffs));
93   *v_eobmin = vminq_s16(*v_eobmin, v_nz_iscan_min);
94 #else
95   (void)v_eobmin;
96 #endif
97   *v_eobmax = vmaxq_s16(*v_eobmax, v_nz_iscan_max);
98 }
99 
get_max_eob(int16x8_t v_eobmax)100 static INLINE uint16_t get_max_eob(int16x8_t v_eobmax) {
101 #ifdef __aarch64__
102   return (uint16_t)vmaxvq_s16(v_eobmax);
103 #else
104   const int16x4_t v_eobmax_3210 =
105       vmax_s16(vget_low_s16(v_eobmax), vget_high_s16(v_eobmax));
106   const int64x1_t v_eobmax_xx32 =
107       vshr_n_s64(vreinterpret_s64_s16(v_eobmax_3210), 32);
108   const int16x4_t v_eobmax_tmp =
109       vmax_s16(v_eobmax_3210, vreinterpret_s16_s64(v_eobmax_xx32));
110   const int64x1_t v_eobmax_xxx3 =
111       vshr_n_s64(vreinterpret_s64_s16(v_eobmax_tmp), 16);
112   const int16x4_t v_eobmax_final =
113       vmax_s16(v_eobmax_tmp, vreinterpret_s16_s64(v_eobmax_xxx3));
114   return (uint16_t)vget_lane_s16(v_eobmax_final, 0);
115 #endif
116 }
117 
get_min_eob(int16x8_t v_eobmin)118 static INLINE uint16_t get_min_eob(int16x8_t v_eobmin) {
119 #ifdef __aarch64__
120   return (uint16_t)vminvq_s16(v_eobmin);
121 #else
122   const int16x4_t v_eobmin_3210 =
123       vmin_s16(vget_low_s16(v_eobmin), vget_high_s16(v_eobmin));
124   const int64x1_t v_eobmin_xx32 =
125       vshr_n_s64(vreinterpret_s64_s16(v_eobmin_3210), 32);
126   const int16x4_t v_eobmin_tmp =
127       vmin_s16(v_eobmin_3210, vreinterpret_s16_s64(v_eobmin_xx32));
128   const int64x1_t v_eobmin_xxx3 =
129       vshr_n_s64(vreinterpret_s64_s16(v_eobmin_tmp), 16);
130   const int16x4_t v_eobmin_final =
131       vmin_s16(v_eobmin_tmp, vreinterpret_s16_s64(v_eobmin_xxx3));
132   return (uint16_t)vget_lane_s16(v_eobmin_final, 0);
133 #endif
134 }
135 
highbd_quantize_b_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan,const int log_scale)136 static void highbd_quantize_b_neon(
137     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
138     const int16_t *round_ptr, const int16_t *quant_ptr,
139     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
140     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
141     const int16_t *scan, const int16_t *iscan, const int log_scale) {
142   (void)scan;
143   const int16x4_t v_quant = vld1_s16(quant_ptr);
144   const int16x4_t v_dequant = vld1_s16(dequant_ptr);
145   const int16x4_t v_zero = vdup_n_s16(0);
146   const uint16x4_t v_round_select = vcgt_s16(vdup_n_s16(log_scale), v_zero);
147   const int16x4_t v_round_no_scale = vld1_s16(round_ptr);
148   const int16x4_t v_round_log_scale =
149       vqrdmulh_n_s16(v_round_no_scale, (int16_t)(1 << (15 - log_scale)));
150   const int16x4_t v_round =
151       vbsl_s16(v_round_select, v_round_log_scale, v_round_no_scale);
152   const int16x4_t v_quant_shift = vld1_s16(quant_shift_ptr);
153   const int16x4_t v_zbin_no_scale = vld1_s16(zbin_ptr);
154   const int16x4_t v_zbin_log_scale =
155       vqrdmulh_n_s16(v_zbin_no_scale, (int16_t)(1 << (15 - log_scale)));
156   const int16x4_t v_zbin =
157       vbsl_s16(v_round_select, v_zbin_log_scale, v_zbin_no_scale);
158   int32x4_t v_round_s32 = vmovl_s16(v_round);
159   int32x4_t v_quant_s32 = vshlq_n_s32(vmovl_s16(v_quant), 15);
160   int32x4_t v_dequant_s32 = vmovl_s16(v_dequant);
161   int32x4_t v_quant_shift_s32 = vshlq_n_s32(vmovl_s16(v_quant_shift), 15);
162   int32x4_t v_zbin_s32 = vmovl_s16(v_zbin);
163   uint16x4_t v_mask_lo, v_mask_hi;
164   int16x8_t v_eobmax = vdupq_n_s16(-1);
165 
166   intptr_t non_zero_count = n_coeffs;
167 
168   assert(n_coeffs > 8);
169   // Pre-scan pass
170   const int32x4_t v_zbin_s32x = vdupq_lane_s32(vget_low_s32(v_zbin_s32), 1);
171   intptr_t i = n_coeffs;
172   do {
173     const int32x4_t v_coeff_a = vld1q_s32(coeff_ptr + i - 4);
174     const int32x4_t v_coeff_b = vld1q_s32(coeff_ptr + i - 8);
175     const int32x4_t v_abs_coeff_a = vabsq_s32(v_coeff_a);
176     const int32x4_t v_abs_coeff_b = vabsq_s32(v_coeff_b);
177     const uint32x4_t v_mask_a = vcgeq_s32(v_abs_coeff_a, v_zbin_s32x);
178     const uint32x4_t v_mask_b = vcgeq_s32(v_abs_coeff_b, v_zbin_s32x);
179     // If the coefficient is in the base ZBIN range, then discard.
180     if (sum_abs_coeff(v_mask_a) + sum_abs_coeff(v_mask_b) == 0) {
181       non_zero_count -= 8;
182     } else {
183       break;
184     }
185     i -= 8;
186   } while (i > 0);
187 
188   const intptr_t remaining_zcoeffs = n_coeffs - non_zero_count;
189   memset(qcoeff_ptr + non_zero_count, 0,
190          remaining_zcoeffs * sizeof(*qcoeff_ptr));
191   memset(dqcoeff_ptr + non_zero_count, 0,
192          remaining_zcoeffs * sizeof(*dqcoeff_ptr));
193 
194   // DC and first 3 AC
195   v_mask_lo =
196       quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32, v_dequant_s32,
197                  v_round_s32, v_zbin_s32, v_quant_shift_s32, log_scale);
198 
199   // overwrite the DC constants with AC constants
200   v_round_s32 = vdupq_lane_s32(vget_low_s32(v_round_s32), 1);
201   v_quant_s32 = vdupq_lane_s32(vget_low_s32(v_quant_s32), 1);
202   v_dequant_s32 = vdupq_lane_s32(vget_low_s32(v_dequant_s32), 1);
203   v_quant_shift_s32 = vdupq_lane_s32(vget_low_s32(v_quant_shift_s32), 1);
204   v_zbin_s32 = vdupq_lane_s32(vget_low_s32(v_zbin_s32), 1);
205 
206   // 4 more AC
207   v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4,
208                          v_quant_s32, v_dequant_s32, v_round_s32, v_zbin_s32,
209                          v_quant_shift_s32, log_scale);
210 
211   v_eobmax =
212       get_max_lane_eob(iscan, v_eobmax, vcombine_u16(v_mask_lo, v_mask_hi));
213 
214   intptr_t count = non_zero_count - 8;
215   for (; count > 0; count -= 8) {
216     coeff_ptr += 8;
217     qcoeff_ptr += 8;
218     dqcoeff_ptr += 8;
219     iscan += 8;
220     v_mask_lo = quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32,
221                            v_dequant_s32, v_round_s32, v_zbin_s32,
222                            v_quant_shift_s32, log_scale);
223     v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4,
224                            v_quant_s32, v_dequant_s32, v_round_s32, v_zbin_s32,
225                            v_quant_shift_s32, log_scale);
226     // Find the max lane eob for 8 coeffs.
227     v_eobmax =
228         get_max_lane_eob(iscan, v_eobmax, vcombine_u16(v_mask_lo, v_mask_hi));
229   }
230 
231   *eob_ptr = get_max_eob(v_eobmax);
232 }
233 
aom_highbd_quantize_b_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)234 void aom_highbd_quantize_b_neon(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
235                                 const int16_t *zbin_ptr,
236                                 const int16_t *round_ptr,
237                                 const int16_t *quant_ptr,
238                                 const int16_t *quant_shift_ptr,
239                                 tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
240                                 const int16_t *dequant_ptr, uint16_t *eob_ptr,
241                                 const int16_t *scan, const int16_t *iscan) {
242   highbd_quantize_b_neon(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr,
243                          quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr,
244                          eob_ptr, scan, iscan, 0);
245 }
246 
aom_highbd_quantize_b_32x32_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)247 void aom_highbd_quantize_b_32x32_neon(
248     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
249     const int16_t *round_ptr, const int16_t *quant_ptr,
250     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
251     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
252     const int16_t *scan, const int16_t *iscan) {
253   highbd_quantize_b_neon(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr,
254                          quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr,
255                          eob_ptr, scan, iscan, 1);
256 }
257 
aom_highbd_quantize_b_64x64_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)258 void aom_highbd_quantize_b_64x64_neon(
259     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
260     const int16_t *round_ptr, const int16_t *quant_ptr,
261     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
262     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
263     const int16_t *scan, const int16_t *iscan) {
264   highbd_quantize_b_neon(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr,
265                          quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr,
266                          eob_ptr, scan, iscan, 2);
267 }
268 
269 #if !CONFIG_REALTIME_ONLY
highbd_quantize_b_adaptive_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan,const int log_scale)270 static void highbd_quantize_b_adaptive_neon(
271     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
272     const int16_t *round_ptr, const int16_t *quant_ptr,
273     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
274     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
275     const int16_t *scan, const int16_t *iscan, const int log_scale) {
276   (void)scan;
277   const int16x4_t v_quant = vld1_s16(quant_ptr);
278   const int16x4_t v_dequant = vld1_s16(dequant_ptr);
279   const int16x4_t v_zero = vdup_n_s16(0);
280   const uint16x4_t v_round_select = vcgt_s16(vdup_n_s16(log_scale), v_zero);
281   const int16x4_t v_round_no_scale = vld1_s16(round_ptr);
282   const int16x4_t v_round_log_scale =
283       vqrdmulh_n_s16(v_round_no_scale, (int16_t)(1 << (15 - log_scale)));
284   const int16x4_t v_round =
285       vbsl_s16(v_round_select, v_round_log_scale, v_round_no_scale);
286   const int16x4_t v_quant_shift = vld1_s16(quant_shift_ptr);
287   const int16x4_t v_zbin_no_scale = vld1_s16(zbin_ptr);
288   const int16x4_t v_zbin_log_scale =
289       vqrdmulh_n_s16(v_zbin_no_scale, (int16_t)(1 << (15 - log_scale)));
290   const int16x4_t v_zbin =
291       vbsl_s16(v_round_select, v_zbin_log_scale, v_zbin_no_scale);
292   int32x4_t v_round_s32 = vmovl_s16(v_round);
293   int32x4_t v_quant_s32 = vshlq_n_s32(vmovl_s16(v_quant), 15);
294   int32x4_t v_dequant_s32 = vmovl_s16(v_dequant);
295   int32x4_t v_quant_shift_s32 = vshlq_n_s32(vmovl_s16(v_quant_shift), 15);
296   int32x4_t v_zbin_s32 = vmovl_s16(v_zbin);
297   uint16x4_t v_mask_lo, v_mask_hi;
298   int16x8_t v_eobmax = vdupq_n_s16(-1);
299   int16x8_t v_eobmin = vdupq_n_s16(n_coeffs);
300 
301   assert(n_coeffs > 8);
302   // Pre-scan pass
303   const int32x4_t v_zbin_s32x = vdupq_lane_s32(vget_low_s32(v_zbin_s32), 1);
304   const int prescan_add_1 =
305       ROUND_POWER_OF_TWO(dequant_ptr[1] * EOB_FACTOR, 7 + AOM_QM_BITS);
306   const int32x4_t v_zbin_prescan =
307       vaddq_s32(v_zbin_s32x, vdupq_n_s32(prescan_add_1));
308   intptr_t non_zero_count = n_coeffs;
309   intptr_t i = n_coeffs;
310   do {
311     const int32x4_t v_coeff_a = vld1q_s32(coeff_ptr + i - 4);
312     const int32x4_t v_coeff_b = vld1q_s32(coeff_ptr + i - 8);
313     const int32x4_t v_abs_coeff_a = vabsq_s32(v_coeff_a);
314     const int32x4_t v_abs_coeff_b = vabsq_s32(v_coeff_b);
315     const uint32x4_t v_mask_a = vcgeq_s32(v_abs_coeff_a, v_zbin_prescan);
316     const uint32x4_t v_mask_b = vcgeq_s32(v_abs_coeff_b, v_zbin_prescan);
317     // If the coefficient is in the base ZBIN range, then discard.
318     if (sum_abs_coeff(v_mask_a) + sum_abs_coeff(v_mask_b) == 0) {
319       non_zero_count -= 8;
320     } else {
321       break;
322     }
323     i -= 8;
324   } while (i > 0);
325 
326   const intptr_t remaining_zcoeffs = n_coeffs - non_zero_count;
327   memset(qcoeff_ptr + non_zero_count, 0,
328          remaining_zcoeffs * sizeof(*qcoeff_ptr));
329   memset(dqcoeff_ptr + non_zero_count, 0,
330          remaining_zcoeffs * sizeof(*dqcoeff_ptr));
331 
332   // DC and first 3 AC
333   v_mask_lo =
334       quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32, v_dequant_s32,
335                  v_round_s32, v_zbin_s32, v_quant_shift_s32, log_scale);
336 
337   // overwrite the DC constants with AC constants
338   v_round_s32 = vdupq_lane_s32(vget_low_s32(v_round_s32), 1);
339   v_quant_s32 = vdupq_lane_s32(vget_low_s32(v_quant_s32), 1);
340   v_dequant_s32 = vdupq_lane_s32(vget_low_s32(v_dequant_s32), 1);
341   v_quant_shift_s32 = vdupq_lane_s32(vget_low_s32(v_quant_shift_s32), 1);
342   v_zbin_s32 = vdupq_lane_s32(vget_low_s32(v_zbin_s32), 1);
343 
344   // 4 more AC
345   v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4,
346                          v_quant_s32, v_dequant_s32, v_round_s32, v_zbin_s32,
347                          v_quant_shift_s32, log_scale);
348 
349   get_min_max_lane_eob(iscan, &v_eobmin, &v_eobmax,
350                        vcombine_u16(v_mask_lo, v_mask_hi), n_coeffs);
351 
352   intptr_t count = non_zero_count - 8;
353   for (; count > 0; count -= 8) {
354     coeff_ptr += 8;
355     qcoeff_ptr += 8;
356     dqcoeff_ptr += 8;
357     iscan += 8;
358     v_mask_lo = quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32,
359                            v_dequant_s32, v_round_s32, v_zbin_s32,
360                            v_quant_shift_s32, log_scale);
361     v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4,
362                            v_quant_s32, v_dequant_s32, v_round_s32, v_zbin_s32,
363                            v_quant_shift_s32, log_scale);
364 
365     get_min_max_lane_eob(iscan, &v_eobmin, &v_eobmax,
366                          vcombine_u16(v_mask_lo, v_mask_hi), n_coeffs);
367   }
368 
369   int eob = get_max_eob(v_eobmax);
370 
371 #if SKIP_EOB_FACTOR_ADJUST
372   const int first = get_min_eob(v_eobmin);
373   if (eob >= 0 && first == eob) {
374     const int rc = scan[eob];
375     if (qcoeff_ptr[rc] == 1 || qcoeff_ptr[rc] == -1) {
376       const int zbins[2] = { ROUND_POWER_OF_TWO(zbin_ptr[0], log_scale),
377                              ROUND_POWER_OF_TWO(zbin_ptr[1], log_scale) };
378       const int nzbins[2] = { zbins[0] * -1, zbins[1] * -1 };
379       const qm_val_t wt = (1 << AOM_QM_BITS);
380       const int coeff = coeff_ptr[rc] * wt;
381       const int factor = EOB_FACTOR + SKIP_EOB_FACTOR_ADJUST;
382       const int prescan_add_val =
383           ROUND_POWER_OF_TWO(dequant_ptr[rc != 0] * factor, 7);
384       if (coeff < (zbins[rc != 0] * (1 << AOM_QM_BITS) + prescan_add_val) &&
385           coeff > (nzbins[rc != 0] * (1 << AOM_QM_BITS) - prescan_add_val)) {
386         qcoeff_ptr[rc] = 0;
387         dqcoeff_ptr[rc] = 0;
388         eob = -1;
389       }
390     }
391   }
392 #endif  // SKIP_EOB_FACTOR_ADJUST
393   *eob_ptr = eob + 1;
394 }
395 
aom_highbd_quantize_b_adaptive_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)396 void aom_highbd_quantize_b_adaptive_neon(
397     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
398     const int16_t *round_ptr, const int16_t *quant_ptr,
399     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
400     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
401     const int16_t *scan, const int16_t *iscan) {
402   highbd_quantize_b_adaptive_neon(
403       coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, quant_shift_ptr,
404       qcoeff_ptr, dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, 0);
405 }
406 
aom_highbd_quantize_b_32x32_adaptive_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)407 void aom_highbd_quantize_b_32x32_adaptive_neon(
408     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
409     const int16_t *round_ptr, const int16_t *quant_ptr,
410     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
411     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
412     const int16_t *scan, const int16_t *iscan) {
413   highbd_quantize_b_adaptive_neon(
414       coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, quant_shift_ptr,
415       qcoeff_ptr, dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, 1);
416 }
417 
aom_highbd_quantize_b_64x64_adaptive_neon(const tran_low_t * coeff_ptr,intptr_t n_coeffs,const int16_t * zbin_ptr,const int16_t * round_ptr,const int16_t * quant_ptr,const int16_t * quant_shift_ptr,tran_low_t * qcoeff_ptr,tran_low_t * dqcoeff_ptr,const int16_t * dequant_ptr,uint16_t * eob_ptr,const int16_t * scan,const int16_t * iscan)418 void aom_highbd_quantize_b_64x64_adaptive_neon(
419     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
420     const int16_t *round_ptr, const int16_t *quant_ptr,
421     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
422     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
423     const int16_t *scan, const int16_t *iscan) {
424   highbd_quantize_b_adaptive_neon(
425       coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, quant_shift_ptr,
426       qcoeff_ptr, dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, 2);
427 }
428 #endif  // !CONFIG_REALTIME_ONLY
429