diff options
Diffstat (limited to 'third_party/aom/aom_dsp/quantize.c')
-rw-r--r-- | third_party/aom/aom_dsp/quantize.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/third_party/aom/aom_dsp/quantize.c b/third_party/aom/aom_dsp/quantize.c deleted file mode 100644 index 62dbd86a9..000000000 --- a/third_party/aom/aom_dsp/quantize.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -#include "aom_dsp/quantize.h" -#include "aom_mem/aom_mem.h" - -void quantize_b_helper_c(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 qm_val_t *qm_ptr, - const qm_val_t *iqm_ptr, const int log_scale) { - const int zbins[2] = { ROUND_POWER_OF_TWO(zbin_ptr[0], log_scale), - ROUND_POWER_OF_TWO(zbin_ptr[1], log_scale) }; - const int nzbins[2] = { zbins[0] * -1, zbins[1] * -1 }; - int i, non_zero_count = (int)n_coeffs, eob = -1; - (void)iscan; - - memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); - memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); - - // Pre-scan pass - for (i = (int)n_coeffs - 1; i >= 0; i--) { - const int rc = scan[i]; - const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); - const int coeff = coeff_ptr[rc] * wt; - - if (coeff < (zbins[rc != 0] * (1 << AOM_QM_BITS)) && - coeff > (nzbins[rc != 0] * (1 << AOM_QM_BITS))) - non_zero_count--; - else - break; - } - - // Quantization pass: All coefficients with index >= zero_flag are - // skippable. Note: zero_flag can be zero. - for (i = 0; i < non_zero_count; i++) { - const int rc = scan[i]; - const int coeff = coeff_ptr[rc]; - const int coeff_sign = (coeff >> 31); - const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; - int tmp32; - - const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); - if (abs_coeff * wt >= (zbins[rc != 0] << AOM_QM_BITS)) { - int64_t tmp = - clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], log_scale), - INT16_MIN, INT16_MAX); - tmp *= wt; - tmp32 = (int)(((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) * - quant_shift_ptr[rc != 0]) >> - (16 - log_scale + AOM_QM_BITS)); // quantization - qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign; - const int iwt = iqm_ptr != NULL ? iqm_ptr[rc] : (1 << AOM_QM_BITS); - const int dequant = - (dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >> - AOM_QM_BITS; - const tran_low_t abs_dqcoeff = (tmp32 * dequant) >> log_scale; - dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); - - if (tmp32) eob = i; - } - } - *eob_ptr = eob + 1; -} - -void highbd_quantize_b_helper_c( - 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 qm_val_t *qm_ptr, - const qm_val_t *iqm_ptr, const int log_scale) { - int i, eob = -1; - const int zbins[2] = { ROUND_POWER_OF_TWO(zbin_ptr[0], log_scale), - ROUND_POWER_OF_TWO(zbin_ptr[1], log_scale) }; - const int nzbins[2] = { zbins[0] * -1, zbins[1] * -1 }; - int dequant; - int idx_arr[4096]; - (void)iscan; - int idx = 0; - - memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); - memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); - - // Pre-scan pass - for (i = 0; i < n_coeffs; i++) { - const int rc = scan[i]; - const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); - const int coeff = coeff_ptr[rc] * wt; - - // If the coefficient is out of the base ZBIN range, keep it for - // quantization. - if (coeff >= (zbins[rc != 0] * (1 << AOM_QM_BITS)) || - coeff <= (nzbins[rc != 0] * (1 << AOM_QM_BITS))) - idx_arr[idx++] = i; - } - - // Quantization pass: only process the coefficients selected in - // pre-scan pass. Note: idx can be zero. - for (i = 0; i < idx; i++) { - const int rc = scan[idx_arr[i]]; - const int coeff = coeff_ptr[rc]; - const int coeff_sign = (coeff >> 31); - const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); - const qm_val_t iwt = iqm_ptr != NULL ? iqm_ptr[rc] : (1 << AOM_QM_BITS); - const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; - const int64_t tmp1 = - abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], log_scale); - const int64_t tmpw = tmp1 * wt; - const int64_t tmp2 = ((tmpw * quant_ptr[rc != 0]) >> 16) + tmpw; - const int abs_qcoeff = (int)((tmp2 * quant_shift_ptr[rc != 0]) >> - (16 - log_scale + AOM_QM_BITS)); - qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign); - dequant = - (dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; - const tran_low_t abs_dqcoeff = (abs_qcoeff * dequant) >> log_scale; - dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); - if (abs_qcoeff) eob = idx_arr[i]; - } - *eob_ptr = eob + 1; -} - -/* These functions should only be called when quantisation matrices - are not used. */ -void aom_quantize_b_c(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) { - quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, - quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, - eob_ptr, scan, iscan, NULL, NULL, 0); -} - -void aom_quantize_b_32x32_c(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) { - quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, - quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, - eob_ptr, scan, iscan, NULL, NULL, 1); -} - -void aom_quantize_b_64x64_c(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) { - quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, - quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, - eob_ptr, scan, iscan, NULL, NULL, 2); -} - -void aom_highbd_quantize_b_c(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) { - highbd_quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, - quant_ptr, quant_shift_ptr, qcoeff_ptr, - dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, - NULL, NULL, 0); -} - -void aom_highbd_quantize_b_32x32_c( - 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) { - highbd_quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, - quant_ptr, quant_shift_ptr, qcoeff_ptr, - dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, - NULL, NULL, 1); -} - -void aom_highbd_quantize_b_64x64_c( - 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) { - highbd_quantize_b_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, - quant_ptr, quant_shift_ptr, qcoeff_ptr, - dqcoeff_ptr, dequant_ptr, eob_ptr, scan, iscan, - NULL, NULL, 2); -} |