| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| #ifndef AOM_AV1_ENCODER_PICKRST_H_ |
| #define AOM_AV1_ENCODER_PICKRST_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include "av1/encoder/encoder.h" |
| #include "aom_ports/system_state.h" |
| |
| struct yv12_buffer_config; |
| struct AV1_COMP; |
| |
| static const uint8_t g_shuffle_stats_data[16] = { |
| 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, |
| }; |
| |
| static const uint8_t g_shuffle_stats_highbd_data[32] = { |
| 0, 1, 2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8, 9, |
| 0, 1, 2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8, 9, |
| }; |
| |
| static INLINE uint8_t find_average(const uint8_t *src, int h_start, int h_end, |
| int v_start, int v_end, int stride) { |
| uint64_t sum = 0; |
| for (int i = v_start; i < v_end; i++) { |
| for (int j = h_start; j < h_end; j++) { |
| sum += src[i * stride + j]; |
| } |
| } |
| uint64_t avg = sum / ((v_end - v_start) * (h_end - h_start)); |
| return (uint8_t)avg; |
| } |
| |
| static INLINE uint16_t find_average_highbd(const uint16_t *src, int h_start, |
| int h_end, int v_start, int v_end, |
| int stride) { |
| uint64_t sum = 0; |
| for (int i = v_start; i < v_end; i++) { |
| for (int j = h_start; j < h_end; j++) { |
| sum += src[i * stride + j]; |
| } |
| } |
| uint64_t avg = sum / ((v_end - v_start) * (h_end - h_start)); |
| return (uint16_t)avg; |
| } |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| // Checks if the filters in info and ref are identical |
| static INLINE int check_wiener_eq(const WienerInfo *info, |
| const WienerInfo *ref) { |
| return !memcmp(info->vfilter, ref->vfilter, |
| WIENER_HALFWIN * sizeof(info->vfilter[0])) && |
| !memcmp(info->hfilter, ref->hfilter, |
| WIENER_HALFWIN * sizeof(info->hfilter[0])); |
| } |
| static INLINE int check_sgrproj_eq(const SgrprojInfo *info, |
| const SgrprojInfo *ref) { |
| if (info->ep == ref->ep && !memcmp(info->xqd, ref->xqd, sizeof(info->xqd))) |
| return 1; |
| return 0; |
| } |
| |
| // Checks if the filter in info matches any in the bank. If it does, the |
| // index of the matching filter is returned, else -1 is returned. |
| static INLINE int check_wiener_bank_eq(const WienerInfoBank *bank, |
| const WienerInfo *info) { |
| for (int k = 0; k < AOMMAX(1, bank->bank_size); ++k) { |
| if (check_wiener_eq(info, av1_constref_from_wiener_bank(bank, k))) return k; |
| } |
| return -1; |
| } |
| static INLINE int check_sgrproj_bank_eq(const SgrprojInfoBank *bank, |
| const SgrprojInfo *info) { |
| for (int k = 0; k < AOMMAX(1, bank->bank_size); ++k) { |
| if (check_sgrproj_eq(info, av1_constref_from_sgrproj_bank(bank, k))) |
| return k; |
| } |
| return -1; |
| } |
| #if CONFIG_WIENER_NONSEP |
| |
| static INLINE int check_wienerns_eq(const WienerNonsepInfo *info, |
| const WienerNonsepInfo *ref, int num_coeffs, |
| int wiener_class_id) { |
| assert(info->num_classes == ref->num_classes); |
| int c_id_begin = 0; |
| int c_id_end = info->num_classes; |
| if (wiener_class_id != ALL_WIENERNS_CLASSES) { |
| c_id_begin = wiener_class_id; |
| c_id_end = wiener_class_id + 1; |
| } |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| const int16_t *info_nsfilter = const_nsfilter_taps(info, c_id); |
| const int16_t *ref_nsfilter = const_nsfilter_taps(ref, c_id); |
| if (memcmp(info_nsfilter, ref_nsfilter, |
| num_coeffs * sizeof(*info_nsfilter))) |
| return 0; |
| } |
| return 1; |
| } |
| |
| static INLINE int check_wienerns_bank_eq(const WienerNonsepInfoBank *bank, |
| const WienerNonsepInfo *info, |
| int num_coeffs, int wiener_class_id, |
| int *refs) { |
| int c_id_begin = 0; |
| int c_id_end = info->num_classes; |
| if (wiener_class_id != ALL_WIENERNS_CLASSES) { |
| c_id_begin = wiener_class_id; |
| c_id_end = wiener_class_id + 1; |
| } |
| int num_equal = 0; |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| refs[c_id] = -1; |
| for (int k = 0; k < AOMMAX(1, bank->bank_size_for_class[c_id]); ++k) { |
| if (check_wienerns_eq(info, |
| av1_constref_from_wienerns_bank(bank, k, c_id), |
| num_coeffs, c_id)) { |
| refs[c_id] = k; |
| num_equal++; |
| break; |
| } |
| } |
| } |
| |
| return num_equal == (c_id_end - c_id_begin) ? 0 : -1; |
| } |
| |
| static INLINE int wienerns_info_diff( |
| const WienerNonsepInfo *info1, const WienerNonsepInfo *info2, |
| const WienernsFilterParameters *nsfilter_params) { |
| int diff = 0; |
| const int beg_feat = 0; |
| const int end_feat = nsfilter_params->ncoeffs; |
| assert(info1->num_classes == info2->num_classes); |
| for (int c_id = 0; c_id < info1->num_classes; ++c_id) { |
| const int16_t *info1_nsfilter = const_nsfilter_taps(info1, c_id); |
| const int16_t *info2_nsfilter = const_nsfilter_taps(info2, c_id); |
| |
| for (int k = beg_feat; k < end_feat; ++k) |
| diff += abs(info1_nsfilter[k] - info2_nsfilter[k]); |
| } |
| return diff; |
| } |
| #endif // CONFIG_WIENER_NONSEP |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| /*!\brief Algorithm for AV1 loop restoration search and estimation. |
| * |
| * \ingroup in_loop_restoration |
| * This function determines proper restoration filter types and |
| * associated parameters for each restoration unit in a frame. |
| * |
| * \param[in] sd Source frame buffer |
| * \param[in,out] cpi Top-level encoder structure |
| * |
| * Nothing is returned. Instead, chosen restoration filter |
| * types and parameters are stored per plane in the \c rst_info structure |
| * of type \ref RestorationInfo inside \c cpi->common: |
| * \arg \c rst_info[ \c 0 ]: Chosen parameters for Y plane |
| * \arg \c rst_info[ \c 1 ]: Chosen parameters for U plane if it exists |
| * \arg \c rst_info[ \c 2 ]: Chosen parameters for V plane if it exists |
| * \par |
| * The following fields in each \c rst_info[ \c p], \c p = 0, 1, 2 |
| * are populated: |
| * \arg \c rst_info[ \c p ].\c frame_restoration_type |
| * \arg \c rst_info[ \c p ].\c unit_info[ \c u ], |
| * for each \c u in 0, 1, ..., \c n( \c p ) - 1, |
| * where \c n( \c p ) is the number of restoration units in plane \c p. |
| * \par |
| * The following fields in each \c rst_info[ \c p ].\c unit_info[ \c u ], |
| * \c p = 0, 1, 2 and \c u = 0, 1, ..., \c n( \c p ) - 1, of type |
| * \ref RestorationUnitInfo are populated: |
| * \arg \c rst_info[ \c p ].\c unit_info[ \c u ].\c restoration_type |
| * \arg \c rst_info[ \c p ].\c unit_info[ \c u ].\c wiener_info OR |
| * \c rst_info[ \c p ].\c unit_info[ \c u ].\c sgrproj_info OR |
| * neither, depending on |
| * \c rst_info[ \c p ].\c unit_info[ \c u ].\c restoration_type |
| * |
| */ |
| void av1_pick_filter_restoration(const YV12_BUFFER_CONFIG *sd, AV1_COMP *cpi); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_ENCODER_PICKRST_H_ |
