| /* |
| * 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/. |
| */ |
| |
| #include <assert.h> |
| #include <float.h> |
| #include <limits.h> |
| #include <math.h> |
| |
| #include "config/aom_scale_rtcd.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_dsp/binary_codes_writer.h" |
| #include "aom_dsp/mathutils.h" |
| #include "aom_dsp/psnr.h" |
| #include "aom_mem/aom_mem.h" |
| #include "aom_ports/mem.h" |
| #include "aom_ports/system_state.h" |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/quant_common.h" |
| #include "av1/common/restoration.h" |
| |
| #include "av1/encoder/av1_quantize.h" |
| #include "av1/encoder/encoder.h" |
| #include "av1/encoder/picklpf.h" |
| #include "av1/encoder/pickrst.h" |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| #include "third_party/vector/vector.h" |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| // Search level 0 - search all drl candidates |
| // Search level 1 - search drl candidates 0 and the best one for the current RU |
| // Search level 2 - search only the best drl candidate for the current RU |
| #define MERGE_DRL_SEARCH_LEVEL 1 |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| // Number of Wiener iterations |
| #define NUM_WIENER_ITERS 5 |
| |
| // Penalty factor for use of dual sgr |
| #define DUAL_SGR_PENALTY_MULT 0.01 |
| |
| // Working precision for Wiener filter coefficients |
| #define WIENER_TAP_SCALE_FACTOR ((int64_t)1 << 16) |
| |
| #define SGRPROJ_EP_GRP1_START_IDX 0 |
| #define SGRPROJ_EP_GRP1_END_IDX 9 |
| #define SGRPROJ_EP_GRP1_SEARCH_COUNT 4 |
| #define SGRPROJ_EP_GRP2_3_SEARCH_COUNT 2 |
| static const int sgproj_ep_grp1_seed[SGRPROJ_EP_GRP1_SEARCH_COUNT] = { 0, 3, 6, |
| 9 }; |
| static const int sgproj_ep_grp2_3[SGRPROJ_EP_GRP2_3_SEARCH_COUNT][14] = { |
| { 10, 10, 11, 11, 12, 12, 13, 13, 13, 13, -1, -1, -1, -1 }, |
| { 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15 } |
| }; |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| // Number of elements needed in the temporary buffer for |
| // compute_wienerns_filter |
| #define WIENERNS_R_SIZE (WIENERNS_MAX_CLASSES * WIENERNS_MAX * WIENERNS_MAX) |
| #define WIENERNS_b_SIZE (WIENERNS_MAX_CLASSES * WIENERNS_MAX) |
| #define WIENERNS_TMPBUF_SIZE (WIENERNS_R_SIZE + WIENERNS_b_SIZE) |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| typedef int64_t (*sse_extractor_type)(const YV12_BUFFER_CONFIG *a, |
| const YV12_BUFFER_CONFIG *b); |
| typedef int64_t (*sse_part_extractor_type)(const YV12_BUFFER_CONFIG *a, |
| const YV12_BUFFER_CONFIG *b, |
| int hstart, int width, int vstart, |
| int height); |
| typedef uint64_t (*var_part_extractor_type)(const YV12_BUFFER_CONFIG *a, |
| int hstart, int width, int vstart, |
| int height); |
| |
| #define NUM_EXTRACTORS 3 |
| |
| static const sse_part_extractor_type sse_part_extractors[NUM_EXTRACTORS] = { |
| aom_highbd_get_y_sse_part, |
| aom_highbd_get_u_sse_part, |
| aom_highbd_get_v_sse_part, |
| }; |
| static const var_part_extractor_type var_part_extractors[NUM_EXTRACTORS] = { |
| aom_highbd_get_y_var, |
| aom_highbd_get_u_var, |
| aom_highbd_get_v_var, |
| }; |
| |
| static int64_t sse_restoration_unit(const RestorationTileLimits *limits, |
| const YV12_BUFFER_CONFIG *src, |
| const YV12_BUFFER_CONFIG *dst, int plane) { |
| return sse_part_extractors[plane]( |
| src, dst, limits->h_start, limits->h_end - limits->h_start, |
| limits->v_start, limits->v_end - limits->v_start); |
| } |
| |
| static uint64_t var_restoration_unit(const RestorationTileLimits *limits, |
| const YV12_BUFFER_CONFIG *src, int plane) { |
| return var_part_extractors[plane]( |
| src, limits->h_start, limits->h_end - limits->h_start, limits->v_start, |
| limits->v_end - limits->v_start); |
| } |
| |
| typedef struct { |
| // The best coefficients for Wiener or Sgrproj restoration |
| WienerInfo wiener_info; |
| SgrprojInfo sgrproj_info; |
| #if CONFIG_LR_IMPROVEMENTS |
| WienerNonsepInfo wienerns_info; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| // The sum of squared errors for this rtype. |
| int64_t sse[RESTORE_SWITCHABLE_TYPES]; |
| |
| // The rtype to use for this unit given a frame rtype as |
| // index. Indices: WIENER, SGRPROJ, SWITCHABLE. |
| RestorationType best_rtype[RESTORE_TYPES - 1]; |
| |
| // This flag will be set based on the speed feature |
| // 'prune_sgr_based_on_wiener'. 0 implies no pruning and 1 implies pruning. |
| uint8_t skip_sgr_eval; |
| } RestUnitSearchInfo; |
| |
| typedef struct { |
| const YV12_BUFFER_CONFIG *src; |
| YV12_BUFFER_CONFIG *dst; |
| |
| const AV1_COMMON *cm; |
| const MACROBLOCK *x; |
| int plane; |
| int plane_width; |
| int plane_height; |
| RestUnitSearchInfo *rusi; |
| |
| // Speed features |
| const LOOP_FILTER_SPEED_FEATURES *lpf_sf; |
| |
| uint16_t *dgd_buffer; |
| int dgd_stride; |
| const uint16_t *src_buffer; |
| int src_stride; |
| |
| // sse and bits are initialised by reset_rsc in search_rest_type |
| int64_t sse; |
| int64_t bits; |
| int tile_y0, tile_stripe0; |
| // Helps convert tile-localized RU indices to frame RU indices. |
| int ru_idx_base; |
| |
| // sgrproj and wiener are initialised by rsc_on_tile when starting the first |
| // tile in the frame. |
| WienerInfoBank wiener_bank; |
| SgrprojInfoBank sgrproj_bank; |
| #if CONFIG_LR_IMPROVEMENTS |
| WienerNonsepInfoBank wienerns_bank; |
| |
| // Vector storing statistics for all RUs. |
| Vector *wienerns_stats; |
| |
| // Number of classes in the initial wienerns stat calculation. |
| int num_stat_classes; |
| // Number of classes in the wienerns filtering calculation. |
| int num_filter_classes; |
| |
| const uint16_t *luma; |
| int luma_stride; |
| |
| // Temporary storage used by compute_wienerns_filter |
| double *wienerns_tmpbuf; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| // This vector holds the most recent list of units with merged coefficients. |
| Vector *unit_stack; |
| // This vector holds a list of rest_unit indices to be considered for merging |
| // for a given drl candidate to be examined. Note that the unit_stack above |
| // includes all previous RUs covering all entries in the drl list, but only |
| // a subset needs to be considered for merging for a given drl candidate. |
| Vector *unit_indices; |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| AV1PixelRect tile_rect; |
| } RestSearchCtxt; |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| // RU statistics for solving Wiener filters. |
| typedef struct RstUnitStats { |
| double A[WIENERNS_MAX_CLASSES * WIENERNS_MAX * WIENERNS_MAX]; |
| double b[WIENERNS_MAX_CLASSES * WIENERNS_MAX]; |
| int64_t real_sse; |
| int num_stats_classes; |
| int ru_idx; // debug. |
| int ru_idx_in_tile; // debug. |
| int plane; // debug. |
| } RstUnitStats; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| typedef struct RstUnitSnapshot { |
| RestorationTileLimits limits; |
| int rest_unit_idx; // update filter value and sse as needed |
| int64_t current_sse; |
| int64_t current_bits; |
| int64_t merge_sse; |
| int64_t merge_bits; |
| int64_t merge_sse_cand; |
| int64_t merge_bits_cand; |
| // Wiener filter info |
| int64_t M[WIENER_WIN2]; |
| int64_t H[WIENER_WIN2 * WIENER_WIN2]; |
| // Wiener filter info |
| WienerInfoBank ref_wiener_bank; |
| // Sgrproj filter info |
| SgrprojInfoBank ref_sgrproj_bank; |
| #if CONFIG_LR_IMPROVEMENTS |
| // Nonseparable Wiener filter info. |
| // Pointers to respective stats in RstUnitStats. |
| const double *A; |
| const double *b; |
| WienerNonsepInfoBank ref_wienerns_bank; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } RstUnitSnapshot; |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| static AOM_INLINE void reset_all_banks(RestSearchCtxt *rsc) { |
| av1_reset_wiener_bank(&rsc->wiener_bank, rsc->plane != AOM_PLANE_Y); |
| av1_reset_sgrproj_bank(&rsc->sgrproj_bank); |
| #if CONFIG_LR_IMPROVEMENTS |
| av1_reset_wienerns_bank(&rsc->wienerns_bank, |
| rsc->cm->quant_params.base_qindex, |
| rsc->num_filter_classes, rsc->plane != AOM_PLANE_Y); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| |
| static AOM_INLINE void rsc_on_tile(void *priv, int idx_base) { |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| reset_all_banks(rsc); |
| rsc->tile_stripe0 = 0; |
| rsc->ru_idx_base = idx_base; |
| } |
| |
| static AOM_INLINE void reset_rsc(RestSearchCtxt *rsc) { |
| rsc->sse = 0; |
| rsc->bits = 0; |
| #if CONFIG_LR_MERGE_COEFFS |
| aom_vector_clear(rsc->unit_stack); |
| aom_vector_clear(rsc->unit_indices); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |
| |
| static AOM_INLINE void init_rsc(const YV12_BUFFER_CONFIG *src, |
| const AV1_COMMON *cm, const MACROBLOCK *x, |
| const LOOP_FILTER_SPEED_FEATURES *lpf_sf, |
| int plane, RestUnitSearchInfo *rusi, |
| #if CONFIG_LR_MERGE_COEFFS |
| Vector *unit_stack, Vector *unit_indices, |
| #endif // CONFIG_LR_MERGE_COEFFS |
| YV12_BUFFER_CONFIG *dst, RestSearchCtxt *rsc) { |
| rsc->src = src; |
| rsc->dst = dst; |
| rsc->cm = cm; |
| rsc->x = x; |
| rsc->plane = plane; |
| rsc->rusi = rusi; |
| rsc->lpf_sf = lpf_sf; |
| |
| const YV12_BUFFER_CONFIG *dgd = &cm->cur_frame->buf; |
| const int is_uv = plane != AOM_PLANE_Y; |
| rsc->plane_width = src->crop_widths[is_uv]; |
| rsc->plane_height = src->crop_heights[is_uv]; |
| rsc->src_buffer = src->buffers[plane]; |
| rsc->src_stride = src->strides[is_uv]; |
| rsc->dgd_buffer = dgd->buffers[plane]; |
| rsc->dgd_stride = dgd->strides[is_uv]; |
| rsc->tile_rect = av1_whole_frame_rect(cm, is_uv); |
| assert(src->crop_widths[is_uv] == dgd->crop_widths[is_uv]); |
| assert(src->crop_heights[is_uv] == dgd->crop_heights[is_uv]); |
| #if CONFIG_LR_MERGE_COEFFS |
| rsc->unit_stack = unit_stack; |
| rsc->unit_indices = unit_indices; |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #if CONFIG_LR_IMPROVEMENTS |
| rsc->num_stat_classes = |
| is_uv ? NUM_WIENERNS_CLASS_INIT_CHROMA : NUM_WIENERNS_CLASS_INIT_LUMA; |
| rsc->num_filter_classes = rsc->num_stat_classes; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| |
| static int64_t try_restoration_unit(const RestSearchCtxt *rsc, |
| const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, |
| const RestorationUnitInfo *rui) { |
| const AV1_COMMON *const cm = rsc->cm; |
| const int plane = rsc->plane; |
| const int is_uv = plane > 0; |
| const RestorationInfo *rsi = &cm->rst_info[plane]; |
| RestorationLineBuffers rlbs; |
| const int bit_depth = cm->seq_params.bit_depth; |
| |
| const YV12_BUFFER_CONFIG *fts = &cm->cur_frame->buf; |
| // TODO(yunqing): For now, only use optimized LR filter in decoder. Can be |
| // also used in encoder. |
| const int optimized_lr = 0; |
| av1_loop_restoration_filter_unit( |
| limits, rui, &rsi->boundaries, &rlbs, tile_rect, rsc->tile_stripe0, |
| is_uv && cm->seq_params.subsampling_x, |
| is_uv && cm->seq_params.subsampling_y, bit_depth, fts->buffers[plane], |
| fts->strides[is_uv], rsc->dst->buffers[plane], rsc->dst->strides[is_uv], |
| cm->rst_tmpbuf, optimized_lr); |
| |
| return sse_restoration_unit(limits, rsc->src, rsc->dst, plane); |
| } |
| |
| int64_t av1_highbd_pixel_proj_error_c(const uint16_t *src, int width, |
| int height, int src_stride, |
| const uint16_t *dat, int dat_stride, |
| int32_t *flt0, int flt0_stride, |
| int32_t *flt1, int flt1_stride, int xq[2], |
| const sgr_params_type *params) { |
| int i, j; |
| int64_t err = 0; |
| const int32_t half = 1 << (SGRPROJ_RST_BITS + SGRPROJ_PRJ_BITS - 1); |
| if (params->r[0] > 0 && params->r[1] > 0) { |
| int xq0 = xq[0]; |
| int xq1 = xq[1]; |
| for (i = 0; i < height; ++i) { |
| for (j = 0; j < width; ++j) { |
| const int32_t d = dat[j]; |
| const int32_t s = src[j]; |
| const int32_t u = (int32_t)(d << SGRPROJ_RST_BITS); |
| int32_t v0 = flt0[j] - u; |
| int32_t v1 = flt1[j] - u; |
| int32_t v = half; |
| v += xq0 * v0; |
| v += xq1 * v1; |
| const int32_t e = (v >> (SGRPROJ_RST_BITS + SGRPROJ_PRJ_BITS)) + d - s; |
| err += ((int64_t)e * e); |
| } |
| dat += dat_stride; |
| flt0 += flt0_stride; |
| flt1 += flt1_stride; |
| src += src_stride; |
| } |
| } else if (params->r[0] > 0 || params->r[1] > 0) { |
| int exq; |
| int32_t *flt; |
| int flt_stride; |
| if (params->r[0] > 0) { |
| exq = xq[0]; |
| flt = flt0; |
| flt_stride = flt0_stride; |
| } else { |
| exq = xq[1]; |
| flt = flt1; |
| flt_stride = flt1_stride; |
| } |
| for (i = 0; i < height; ++i) { |
| for (j = 0; j < width; ++j) { |
| const int32_t d = dat[j]; |
| const int32_t s = src[j]; |
| const int32_t u = (int32_t)(d << SGRPROJ_RST_BITS); |
| int32_t v = half; |
| v += exq * (flt[j] - u); |
| const int32_t e = (v >> (SGRPROJ_RST_BITS + SGRPROJ_PRJ_BITS)) + d - s; |
| err += ((int64_t)e * e); |
| } |
| dat += dat_stride; |
| flt += flt_stride; |
| src += src_stride; |
| } |
| } else { |
| for (i = 0; i < height; ++i) { |
| for (j = 0; j < width; ++j) { |
| const int32_t d = dat[j]; |
| const int32_t s = src[j]; |
| const int32_t e = d - s; |
| err += ((int64_t)e * e); |
| } |
| dat += dat_stride; |
| src += src_stride; |
| } |
| } |
| return err; |
| } |
| |
| static int64_t get_pixel_proj_error(const uint16_t *src, int width, int height, |
| int src_stride, const uint16_t *dat, |
| int dat_stride, int32_t *flt0, |
| int flt0_stride, int32_t *flt1, |
| int flt1_stride, int *xqd, |
| const sgr_params_type *params) { |
| int xq[2]; |
| av1_decode_xq(xqd, xq, params); |
| |
| return av1_highbd_pixel_proj_error(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, flt1, |
| flt1_stride, xq, params); |
| } |
| |
| #define USE_SGRPROJ_REFINEMENT_SEARCH 1 |
| static int64_t finer_search_pixel_proj_error( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt0, int flt0_stride, |
| int32_t *flt1, int flt1_stride, int start_step, int *xqd, |
| const sgr_params_type *params) { |
| int64_t err = |
| get_pixel_proj_error(src, width, height, src_stride, dat, dat_stride, |
| flt0, flt0_stride, flt1, flt1_stride, xqd, params); |
| (void)start_step; |
| #if USE_SGRPROJ_REFINEMENT_SEARCH |
| int64_t err2; |
| int tap_min[] = { SGRPROJ_PRJ_MIN0, SGRPROJ_PRJ_MIN1 }; |
| int tap_max[] = { SGRPROJ_PRJ_MAX0, SGRPROJ_PRJ_MAX1 }; |
| for (int s = start_step; s >= 1; s >>= 1) { |
| for (int p = 0; p < 2; ++p) { |
| if ((params->r[0] == 0 && p == 0) || (params->r[1] == 0 && p == 1)) { |
| continue; |
| } |
| int skip = 0; |
| do { |
| if (xqd[p] - s >= tap_min[p]) { |
| xqd[p] -= s; |
| err2 = get_pixel_proj_error(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, flt1, |
| flt1_stride, xqd, params); |
| if (err2 > err) { |
| xqd[p] += s; |
| } else { |
| err = err2; |
| skip = 1; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| if (skip) break; |
| do { |
| if (xqd[p] + s <= tap_max[p]) { |
| xqd[p] += s; |
| err2 = get_pixel_proj_error(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, flt1, |
| flt1_stride, xqd, params); |
| if (err2 > err) { |
| xqd[p] -= s; |
| } else { |
| err = err2; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| } |
| } |
| #endif // USE_SGRPROJ_REFINEMENT_SEARCH |
| return err; |
| } |
| |
| static int64_t signed_rounded_divide(int64_t dividend, int64_t divisor) { |
| if (dividend < 0) |
| return (dividend - divisor / 2) / divisor; |
| else |
| return (dividend + divisor / 2) / divisor; |
| } |
| |
| static AOM_INLINE void calc_proj_params_r0_r1_high_bd_c( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt0, int flt0_stride, |
| int32_t *flt1, int flt1_stride, int64_t H[2][2], int64_t C[2]) { |
| const int size = width * height; |
| for (int i = 0; i < height; ++i) { |
| for (int j = 0; j < width; ++j) { |
| const int32_t u = (int32_t)(dat[i * dat_stride + j] << SGRPROJ_RST_BITS); |
| const int32_t s = |
| (int32_t)(src[i * src_stride + j] << SGRPROJ_RST_BITS) - u; |
| const int32_t f1 = (int32_t)flt0[i * flt0_stride + j] - u; |
| const int32_t f2 = (int32_t)flt1[i * flt1_stride + j] - u; |
| H[0][0] += (int64_t)f1 * f1; |
| H[1][1] += (int64_t)f2 * f2; |
| H[0][1] += (int64_t)f1 * f2; |
| C[0] += (int64_t)f1 * s; |
| C[1] += (int64_t)f2 * s; |
| } |
| } |
| H[0][0] /= size; |
| H[0][1] /= size; |
| H[1][1] /= size; |
| H[1][0] = H[0][1]; |
| C[0] /= size; |
| C[1] /= size; |
| } |
| |
| static AOM_INLINE void calc_proj_params_r0_high_bd_c( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt0, int flt0_stride, |
| int64_t H[2][2], int64_t C[2]) { |
| const int size = width * height; |
| for (int i = 0; i < height; ++i) { |
| for (int j = 0; j < width; ++j) { |
| const int32_t u = (int32_t)(dat[i * dat_stride + j] << SGRPROJ_RST_BITS); |
| const int32_t s = |
| (int32_t)(src[i * src_stride + j] << SGRPROJ_RST_BITS) - u; |
| const int32_t f1 = (int32_t)flt0[i * flt0_stride + j] - u; |
| H[0][0] += (int64_t)f1 * f1; |
| C[0] += (int64_t)f1 * s; |
| } |
| } |
| H[0][0] /= size; |
| C[0] /= size; |
| } |
| |
| static AOM_INLINE void calc_proj_params_r1_high_bd_c( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt1, int flt1_stride, |
| int64_t H[2][2], int64_t C[2]) { |
| const int size = width * height; |
| for (int i = 0; i < height; ++i) { |
| for (int j = 0; j < width; ++j) { |
| const int32_t u = (int32_t)(dat[i * dat_stride + j] << SGRPROJ_RST_BITS); |
| const int32_t s = |
| (int32_t)(src[i * src_stride + j] << SGRPROJ_RST_BITS) - u; |
| const int32_t f2 = (int32_t)flt1[i * flt1_stride + j] - u; |
| H[1][1] += (int64_t)f2 * f2; |
| C[1] += (int64_t)f2 * s; |
| } |
| } |
| H[1][1] /= size; |
| C[1] /= size; |
| } |
| |
| // The function calls 3 subfunctions for the following cases : |
| // 1) When params->r[0] > 0 and params->r[1] > 0. In this case all elements |
| // of C and H need to be computed. |
| // 2) When only params->r[0] > 0. In this case only H[0][0] and C[0] are |
| // non-zero and need to be computed. |
| // 3) When only params->r[1] > 0. In this case only H[1][1] and C[1] are |
| // non-zero and need to be computed. |
| static AOM_INLINE void av1_calc_proj_params_high_bd_c( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt0, int flt0_stride, |
| int32_t *flt1, int flt1_stride, int64_t H[2][2], int64_t C[2], |
| const sgr_params_type *params) { |
| if ((params->r[0] > 0) && (params->r[1] > 0)) { |
| calc_proj_params_r0_r1_high_bd_c(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, flt1, |
| flt1_stride, H, C); |
| } else if (params->r[0] > 0) { |
| calc_proj_params_r0_high_bd_c(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, H, C); |
| } else if (params->r[1] > 0) { |
| calc_proj_params_r1_high_bd_c(src, width, height, src_stride, dat, |
| dat_stride, flt1, flt1_stride, H, C); |
| } |
| } |
| |
| static AOM_INLINE void get_proj_subspace( |
| const uint16_t *src, int width, int height, int src_stride, |
| const uint16_t *dat, int dat_stride, int32_t *flt0, int flt0_stride, |
| int32_t *flt1, int flt1_stride, int *xq, const sgr_params_type *params) { |
| int64_t H[2][2] = { { 0, 0 }, { 0, 0 } }; |
| int64_t C[2] = { 0, 0 }; |
| |
| // Default values to be returned if the problem becomes ill-posed |
| xq[0] = 0; |
| xq[1] = 0; |
| |
| av1_calc_proj_params_high_bd_c(src, width, height, src_stride, dat, |
| dat_stride, flt0, flt0_stride, flt1, |
| flt1_stride, H, C, params); |
| |
| if (params->r[0] == 0) { |
| // H matrix is now only the scalar H[1][1] |
| // C vector is now only the scalar C[1] |
| const int64_t Det = H[1][1]; |
| if (Det == 0) return; // ill-posed, return default values |
| xq[0] = 0; |
| xq[1] = (int)signed_rounded_divide(C[1] * (1 << SGRPROJ_PRJ_BITS), Det); |
| } else if (params->r[1] == 0) { |
| // H matrix is now only the scalar H[0][0] |
| // C vector is now only the scalar C[0] |
| const int64_t Det = H[0][0]; |
| if (Det == 0) return; // ill-posed, return default values |
| xq[0] = (int)signed_rounded_divide(C[0] * (1 << SGRPROJ_PRJ_BITS), Det); |
| xq[1] = 0; |
| } else { |
| const int64_t Det = H[0][0] * H[1][1] - H[0][1] * H[1][0]; |
| if (Det == 0) return; // ill-posed, return default values |
| |
| // If scaling up dividend would overflow, instead scale down the divisor |
| const int64_t div1 = H[1][1] * C[0] - H[0][1] * C[1]; |
| if ((div1 > 0 && INT64_MAX / (1 << SGRPROJ_PRJ_BITS) < div1) || |
| (div1 < 0 && INT64_MIN / (1 << SGRPROJ_PRJ_BITS) > div1)) |
| xq[0] = (int)signed_rounded_divide(div1, Det / (1 << SGRPROJ_PRJ_BITS)); |
| else |
| xq[0] = (int)signed_rounded_divide(div1 * (1 << SGRPROJ_PRJ_BITS), Det); |
| |
| const int64_t div2 = H[0][0] * C[1] - H[1][0] * C[0]; |
| if ((div2 > 0 && INT64_MAX / (1 << SGRPROJ_PRJ_BITS) < div2) || |
| (div2 < 0 && INT64_MIN / (1 << SGRPROJ_PRJ_BITS) > div2)) |
| xq[1] = (int)signed_rounded_divide(div2, Det / (1 << SGRPROJ_PRJ_BITS)); |
| else |
| xq[1] = (int)signed_rounded_divide(div2 * (1 << SGRPROJ_PRJ_BITS), Det); |
| } |
| } |
| |
| static AOM_INLINE void encode_xq(int *xq, int *xqd, |
| const sgr_params_type *params) { |
| if (params->r[0] == 0) { |
| xqd[0] = 0; |
| xqd[1] = clamp((1 << SGRPROJ_PRJ_BITS) - xq[1], SGRPROJ_PRJ_MIN1, |
| SGRPROJ_PRJ_MAX1); |
| } else if (params->r[1] == 0) { |
| xqd[0] = clamp(xq[0], SGRPROJ_PRJ_MIN0, SGRPROJ_PRJ_MAX0); |
| xqd[1] = clamp((1 << SGRPROJ_PRJ_BITS) - xqd[0], SGRPROJ_PRJ_MIN1, |
| SGRPROJ_PRJ_MAX1); |
| } else { |
| xqd[0] = clamp(xq[0], SGRPROJ_PRJ_MIN0, SGRPROJ_PRJ_MAX0); |
| xqd[1] = clamp((1 << SGRPROJ_PRJ_BITS) - xqd[0] - xq[1], SGRPROJ_PRJ_MIN1, |
| SGRPROJ_PRJ_MAX1); |
| } |
| } |
| |
| // Apply the self-guided filter across an entire restoration unit. |
| static AOM_INLINE void apply_sgr(int sgr_params_idx, const uint16_t *dat, |
| int width, int height, int dat_stride, |
| int bit_depth, int pu_width, int pu_height, |
| int32_t *flt0, int32_t *flt1, int flt_stride) { |
| for (int i = 0; i < height; i += pu_height) { |
| const int h = AOMMIN(pu_height, height - i); |
| int32_t *flt0_row = flt0 + i * flt_stride; |
| int32_t *flt1_row = flt1 + i * flt_stride; |
| const uint16_t *dat_row = dat + i * dat_stride; |
| |
| // Iterate over the stripe in blocks of width pu_width |
| for (int j = 0; j < width; j += pu_width) { |
| const int w = AOMMIN(pu_width, width - j); |
| const int ret = av1_selfguided_restoration_c( |
| dat_row + j, w, h, dat_stride, flt0_row + j, flt1_row + j, flt_stride, |
| sgr_params_idx, bit_depth); |
| (void)ret; |
| assert(!ret); |
| } |
| } |
| } |
| |
| static AOM_INLINE int64_t compute_sgrproj_err( |
| const uint16_t *dat, const int width, const int height, |
| const int dat_stride, const uint16_t *src, const int src_stride, |
| const int bit_depth, const int pu_width, const int pu_height, const int ep, |
| int32_t *flt0, int32_t *flt1, const int flt_stride, int *exqd) { |
| int exq[2]; |
| apply_sgr(ep, dat, width, height, dat_stride, bit_depth, pu_width, pu_height, |
| flt0, flt1, flt_stride); |
| aom_clear_system_state(); |
| const sgr_params_type *const params = &av1_sgr_params[ep]; |
| get_proj_subspace(src, width, height, src_stride, dat, dat_stride, flt0, |
| flt_stride, flt1, flt_stride, exq, params); |
| aom_clear_system_state(); |
| encode_xq(exq, exqd, params); |
| int64_t err = finer_search_pixel_proj_error( |
| src, width, height, src_stride, dat, dat_stride, flt0, flt_stride, flt1, |
| flt_stride, 2, exqd, params); |
| return err; |
| } |
| |
| static AOM_INLINE void get_best_error(int64_t *besterr, const int64_t err, |
| const int *exqd, int *bestxqd, |
| int *bestep, const int ep) { |
| if (*besterr == -1 || err < *besterr) { |
| *bestep = ep; |
| *besterr = err; |
| bestxqd[0] = exqd[0]; |
| bestxqd[1] = exqd[1]; |
| } |
| } |
| |
| // If limits != NULL, calculates error for current restoration unit. |
| // Otherwise, calculates error for all units in the stack using stored limits. |
| static int64_t calc_sgrproj_err(const RestSearchCtxt *rsc, |
| const RestorationTileLimits *limits, |
| const int bit_depth, const int pu_width, |
| const int pu_height, const int ep, |
| int32_t *flt0, int32_t *flt1, int *exqd) { |
| int64_t err = 0; |
| |
| uint16_t *dat; |
| const uint16_t *src; |
| int width, height, dat_stride, src_stride, flt_stride; |
| dat_stride = rsc->dgd_stride; |
| src_stride = rsc->src_stride; |
| if (limits != NULL) { |
| dat = rsc->dgd_buffer + limits->v_start * rsc->dgd_stride + limits->h_start; |
| src = rsc->src_buffer + limits->v_start * rsc->src_stride + limits->h_start; |
| width = limits->h_end - limits->h_start; |
| height = limits->v_end - limits->v_start; |
| flt_stride = ((width + 7) & ~7) + 8; |
| err = compute_sgrproj_err(dat, width, height, dat_stride, src, src_stride, |
| bit_depth, pu_width, pu_height, ep, flt0, flt1, |
| flt_stride, exqd); |
| } else { |
| #if CONFIG_LR_MERGE_COEFFS |
| Vector *current_unit_stack = rsc->unit_stack; |
| Vector *current_unit_indices = rsc->unit_indices; |
| assert(current_unit_stack->size > 0); |
| assert(current_unit_indices->size > 0); |
| int n = 0; |
| int idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| if (old_unit->rest_unit_idx == idx) { |
| RestorationTileLimits old_limits = old_unit->limits; |
| dat = rsc->dgd_buffer + old_limits.v_start * rsc->dgd_stride + |
| old_limits.h_start; |
| src = rsc->src_buffer + old_limits.v_start * rsc->src_stride + |
| old_limits.h_start; |
| width = old_limits.h_end - old_limits.h_start; |
| height = old_limits.v_end - old_limits.v_start; |
| flt_stride = ((width + 7) & ~7) + 8; |
| err += compute_sgrproj_err(dat, width, height, dat_stride, src, |
| src_stride, bit_depth, pu_width, pu_height, |
| ep, flt0, flt1, flt_stride, exqd); |
| n++; |
| if (n >= (int)current_unit_indices->size) break; |
| idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| } |
| } |
| #else // CONFIG_LR_MERGE_COEFFS |
| assert(0 && "Tile limits should not be NULL."); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |
| return err; |
| } |
| |
| static SgrprojInfo search_selfguided_restoration( |
| const RestSearchCtxt *rsc, const RestorationTileLimits *limits, |
| int bit_depth, int pu_width, int pu_height, int32_t *rstbuf, |
| int enable_sgr_ep_pruning) { |
| int32_t *flt0 = rstbuf; |
| int32_t *flt1 = flt0 + RESTORATION_UNITPELS_MAX; |
| int ep, idx, bestep = 0; |
| int64_t besterr = -1; |
| int exqd[2] = { 0 }; |
| int bestxqd[2] = { 0, 0 }; |
| assert(pu_width == (RESTORATION_PROC_UNIT_SIZE >> 1) || |
| pu_width == RESTORATION_PROC_UNIT_SIZE); |
| assert(pu_height == (RESTORATION_PROC_UNIT_SIZE >> 1) || |
| pu_height == RESTORATION_PROC_UNIT_SIZE); |
| if (!enable_sgr_ep_pruning) { |
| for (ep = 0; ep < SGRPROJ_PARAMS; ep++) { |
| int64_t err = calc_sgrproj_err(rsc, limits, bit_depth, pu_width, |
| pu_height, ep, flt0, flt1, exqd); |
| get_best_error(&besterr, err, exqd, bestxqd, &bestep, ep); |
| } |
| } else { |
| // evaluate first four seed ep in first group |
| for (idx = 0; idx < SGRPROJ_EP_GRP1_SEARCH_COUNT; idx++) { |
| ep = sgproj_ep_grp1_seed[idx]; |
| int64_t err = calc_sgrproj_err(rsc, limits, bit_depth, pu_width, |
| pu_height, ep, flt0, flt1, exqd); |
| get_best_error(&besterr, err, exqd, bestxqd, &bestep, ep); |
| } |
| // evaluate left and right ep of winner in seed ep |
| int bestep_ref = bestep; |
| for (ep = bestep_ref - 1; ep < bestep_ref + 2; ep += 2) { |
| if (ep < SGRPROJ_EP_GRP1_START_IDX || ep > SGRPROJ_EP_GRP1_END_IDX) |
| continue; |
| int64_t err = calc_sgrproj_err(rsc, limits, bit_depth, pu_width, |
| pu_height, ep, flt0, flt1, exqd); |
| get_best_error(&besterr, err, exqd, bestxqd, &bestep, ep); |
| } |
| // evaluate last two group |
| for (idx = 0; idx < SGRPROJ_EP_GRP2_3_SEARCH_COUNT; idx++) { |
| ep = sgproj_ep_grp2_3[idx][bestep]; |
| int64_t err = calc_sgrproj_err(rsc, limits, bit_depth, pu_width, |
| pu_height, ep, flt0, flt1, exqd); |
| get_best_error(&besterr, err, exqd, bestxqd, &bestep, ep); |
| } |
| } |
| |
| SgrprojInfo ret; |
| ret.ep = bestep; |
| ret.xqd[0] = bestxqd[0]; |
| ret.xqd[1] = bestxqd[1]; |
| return ret; |
| } |
| |
| static int64_t count_sgrproj_bits(const ModeCosts *mode_costs, |
| SgrprojInfo *sgrproj_info, |
| const SgrprojInfoBank *bank) { |
| (void)mode_costs; |
| int64_t bits = 0; |
| #if CONFIG_LR_MERGE_COEFFS |
| const int ref = sgrproj_info->bank_ref; |
| const SgrprojInfo *ref_sgrproj_info = |
| av1_constref_from_sgrproj_bank(bank, ref); |
| const int equal_ref = check_sgrproj_eq(sgrproj_info, ref_sgrproj_info); |
| for (int k = 0; k < AOMMAX(0, bank->bank_size - 1); ++k) { |
| const int match = (k == ref); |
| bits += (1 << AV1_PROB_COST_SHIFT); |
| if (match) break; |
| } |
| bits += mode_costs->merged_param_cost[equal_ref]; |
| if (equal_ref) return bits; |
| #else |
| const SgrprojInfo *ref_sgrproj_info = av1_constref_from_sgrproj_bank(bank, 0); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| bits += (SGRPROJ_PARAMS_BITS << AV1_PROB_COST_SHIFT); |
| const sgr_params_type *params = &av1_sgr_params[sgrproj_info->ep]; |
| if (params->r[0] > 0) { |
| bits += aom_count_primitive_refsubexpfin( |
| SGRPROJ_PRJ_MAX0 - SGRPROJ_PRJ_MIN0 + 1, SGRPROJ_PRJ_SUBEXP_K, |
| ref_sgrproj_info->xqd[0] - SGRPROJ_PRJ_MIN0, |
| sgrproj_info->xqd[0] - SGRPROJ_PRJ_MIN0) |
| << AV1_PROB_COST_SHIFT; |
| } |
| if (params->r[1] > 0) { |
| bits += aom_count_primitive_refsubexpfin( |
| SGRPROJ_PRJ_MAX1 - SGRPROJ_PRJ_MIN1 + 1, SGRPROJ_PRJ_SUBEXP_K, |
| ref_sgrproj_info->xqd[1] - SGRPROJ_PRJ_MIN1, |
| sgrproj_info->xqd[1] - SGRPROJ_PRJ_MIN1) |
| << AV1_PROB_COST_SHIFT; |
| } |
| return bits; |
| } |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| static int64_t count_sgrproj_bits_set(const ModeCosts *mode_costs, |
| SgrprojInfo *info, |
| const SgrprojInfoBank *bank) { |
| int64_t best_bits = INT64_MAX; |
| int best_ref = -1; |
| for (int ref = 0; ref < AOMMAX(1, bank->bank_size); ++ref) { |
| info->bank_ref = ref; |
| const int64_t bits = count_sgrproj_bits(mode_costs, info, bank); |
| if (bits < best_bits) { |
| best_bits = bits; |
| best_ref = ref; |
| } |
| } |
| info->bank_ref = AOMMAX(0, best_ref); |
| return best_bits; |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| static AOM_INLINE void search_sgrproj_visitor( |
| const RestorationTileLimits *limits, const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tile_rect; |
| (void)rlbs; |
| (void)rest_unit_idx_seq; |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| const MACROBLOCK *const x = rsc->x; |
| const AV1_COMMON *const cm = rsc->cm; |
| const int bit_depth = cm->seq_params.bit_depth; |
| |
| const int64_t bits_none = x->mode_costs.sgrproj_restore_cost[0]; |
| // Prune evaluation of RESTORE_SGRPROJ if 'skip_sgr_eval' is set |
| if (rusi->skip_sgr_eval) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_SGRPROJ - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_SGRPROJ] = INT64_MAX; |
| return; |
| } |
| |
| const int is_uv = rsc->plane > 0; |
| const int ss_x = is_uv && cm->seq_params.subsampling_x; |
| const int ss_y = is_uv && cm->seq_params.subsampling_y; |
| const int procunit_width = RESTORATION_PROC_UNIT_SIZE >> ss_x; |
| const int procunit_height = RESTORATION_PROC_UNIT_SIZE >> ss_y; |
| |
| rusi->sgrproj_info = search_selfguided_restoration( |
| rsc, limits, bit_depth, procunit_width, procunit_height, tmpbuf, |
| rsc->lpf_sf->enable_sgr_ep_pruning); |
| |
| RestorationUnitInfo rui; |
| rui.restoration_type = RESTORE_SGRPROJ; |
| rui.sgrproj_info = rusi->sgrproj_info; |
| |
| rusi->sse[RESTORE_SGRPROJ] = |
| try_restoration_unit(rsc, limits, &rsc->tile_rect, &rui); |
| |
| double cost_none = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_none >> 4, rusi->sse[RESTORE_NONE], bit_depth); |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| Vector *current_unit_stack = rsc->unit_stack; |
| int64_t bits_nomerge_base = |
| x->mode_costs.sgrproj_restore_cost[1] + |
| count_sgrproj_bits_set(&x->mode_costs, &rusi->sgrproj_info, |
| &rsc->sgrproj_bank); |
| const int bank_ref_base = rusi->sgrproj_info.bank_ref; |
| // Only test the reference in rusi->sgrproj_info.bank_ref, generated from |
| // the count call above. |
| |
| double cost_nomerge_base = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_nomerge_base >> 4, rusi->sse[RESTORE_SGRPROJ], bit_depth); |
| const int bits_min = x->mode_costs.sgrproj_restore_cost[1] + |
| x->mode_costs.merged_param_cost[1] + |
| (1 << AV1_PROB_COST_SHIFT); |
| const double cost_min = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_min >> 4, rusi->sse[RESTORE_SGRPROJ], bit_depth); |
| const double cost_nomerge_thr = (cost_nomerge_base + 3 * cost_min) / 4; |
| RestorationType rtype = |
| (cost_none <= cost_nomerge_thr) ? RESTORE_NONE : RESTORE_SGRPROJ; |
| if (cost_none <= cost_nomerge_thr) { |
| bits_nomerge_base = bits_none; |
| cost_nomerge_base = cost_none; |
| } |
| |
| RstUnitSnapshot unit_snapshot; |
| memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| unit_snapshot.limits = *limits; |
| unit_snapshot.rest_unit_idx = rest_unit_idx; |
| rusi->best_rtype[RESTORE_SGRPROJ - 1] = rtype; |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += bits_nomerge_base; |
| unit_snapshot.current_sse = rusi->sse[rtype]; |
| unit_snapshot.current_bits = bits_nomerge_base; |
| // Only matters for first unit in stack. |
| unit_snapshot.ref_sgrproj_bank = rsc->sgrproj_bank; |
| // If current_unit_stack is empty, we can leave early. |
| if (aom_vector_is_empty(current_unit_stack)) { |
| if (rtype == RESTORE_SGRPROJ) |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| |
| // Handles special case where no-merge filter is equal to merged |
| // filter for the stack - we don't want to perform another merge and |
| // get a less optimal filter, but we want to continue building the stack. |
| int equal_ref; |
| if (rtype == RESTORE_SGRPROJ && |
| (equal_ref = check_sgrproj_bank_eq(&rsc->sgrproj_bank, |
| &rusi->sgrproj_info)) >= 0) { |
| rsc->bits -= bits_nomerge_base; |
| rusi->sgrproj_info.bank_ref = equal_ref; |
| unit_snapshot.current_bits = |
| x->mode_costs.sgrproj_restore_cost[1] + |
| count_sgrproj_bits(&x->mode_costs, &rusi->sgrproj_info, |
| &rsc->sgrproj_bank); |
| rsc->bits += unit_snapshot.current_bits; |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| |
| // Push current unit onto stack. |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| |
| double cost_merge = DBL_MAX; |
| double cost_nomerge = 0; |
| int begin_idx = -1; |
| int bank_ref = -1; |
| RestorationUnitInfo rui_temp; |
| |
| // Trial start |
| for (int bank_ref_cand = 0; |
| bank_ref_cand < AOMMAX(1, rsc->sgrproj_bank.bank_size); |
| bank_ref_cand++) { |
| #if MERGE_DRL_SEARCH_LEVEL == 1 |
| if (bank_ref_cand != 0 && bank_ref_cand != bank_ref_base) continue; |
| #elif MERGE_DRL_SEARCH_LEVEL == 2 |
| if (bank_ref_cand != bank_ref_base) continue; |
| #else |
| (void)bank_ref_base; |
| #endif |
| const SgrprojInfo *ref_sgrproj_info_cand = |
| av1_constref_from_sgrproj_bank(&rsc->sgrproj_bank, bank_ref_cand); |
| SgrprojInfo ref_sgrproj_info_tmp = *ref_sgrproj_info_cand; |
| |
| // Iterate once to get the begin unit of the run |
| int begin_idx_cand = -1; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info_cand)) { |
| if (check_sgrproj_bank_eq(&old_unit->ref_sgrproj_bank, |
| ref_sgrproj_info_cand) == -1) { |
| begin_idx_cand = old_unit->rest_unit_idx; |
| } |
| } |
| } |
| if (begin_idx_cand == -1) continue; |
| |
| Vector *current_unit_indices = rsc->unit_indices; |
| aom_vector_clear(current_unit_indices); |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| old_unit->rest_unit_idx != last_idx && |
| !check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info_cand)) |
| continue; |
| int index = old_unit->rest_unit_idx; |
| aom_vector_push_back(current_unit_indices, &index); |
| } |
| |
| // Generate new filter. |
| RestorationUnitInfo rui_temp_cand; |
| memset(&rui_temp_cand, 0, sizeof(rui_temp_cand)); |
| rui_temp_cand.restoration_type = RESTORE_SGRPROJ; |
| rui_temp_cand.sgrproj_info = search_selfguided_restoration( |
| rsc, NULL, bit_depth, procunit_width, procunit_height, tmpbuf, |
| rsc->lpf_sf->enable_sgr_ep_pruning); |
| |
| aom_vector_clear(current_unit_indices); |
| |
| // Iterate once more for the no-merge cost |
| double cost_nomerge_cand = cost_nomerge_base; |
| has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| // last unit already in cost_nomerge |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| !check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info_cand)) |
| continue; |
| cost_nomerge_cand += |
| RDCOST_DBL_WITH_NATIVE_BD_DIST(x->rdmult, old_unit->current_bits >> 4, |
| old_unit->current_sse, bit_depth); |
| } |
| |
| // Iterate through vector to get sse and bits for each on the new filter. |
| double cost_merge_cand = 0; |
| has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| old_unit->rest_unit_idx != last_idx && |
| !check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info_cand)) |
| continue; |
| |
| old_unit->merge_sse_cand = try_restoration_unit( |
| rsc, &old_unit->limits, &rsc->tile_rect, &rui_temp_cand); |
| |
| // First unit in stack has larger unit_bits because the |
| // merged coeffs are linked to it. |
| if (old_unit->rest_unit_idx == begin_idx_cand) { |
| const int new_bits = (int)count_sgrproj_bits_set( |
| &x->mode_costs, &rui_temp_cand.sgrproj_info, |
| &old_unit->ref_sgrproj_bank); |
| old_unit->merge_bits_cand = |
| x->mode_costs.sgrproj_restore_cost[1] + new_bits; |
| } else { |
| equal_ref = check_sgrproj_bank_eq(&old_unit->ref_sgrproj_bank, |
| ref_sgrproj_info_cand); |
| assert(equal_ref >= 0); // Must exist in bank |
| ref_sgrproj_info_tmp.bank_ref = equal_ref; |
| const int merge_bits = (int)count_sgrproj_bits( |
| &x->mode_costs, &ref_sgrproj_info_tmp, &old_unit->ref_sgrproj_bank); |
| old_unit->merge_bits_cand = |
| x->mode_costs.sgrproj_restore_cost[1] + merge_bits; |
| } |
| cost_merge_cand += RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, old_unit->merge_bits_cand >> 4, old_unit->merge_sse_cand, |
| bit_depth); |
| } |
| if (cost_merge_cand - cost_nomerge_cand < cost_merge - cost_nomerge) { |
| begin_idx = begin_idx_cand; |
| bank_ref = bank_ref_cand; |
| cost_merge = cost_merge_cand; |
| cost_nomerge = cost_nomerge_cand; |
| has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| old_unit->rest_unit_idx != last_idx && |
| !check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info_cand)) |
| continue; |
| old_unit->merge_sse = old_unit->merge_sse_cand; |
| old_unit->merge_bits = old_unit->merge_bits_cand; |
| } |
| rui_temp = rui_temp_cand; |
| } |
| } |
| // Trial end |
| |
| if (cost_merge < cost_nomerge) { |
| const SgrprojInfo *ref_sgrproj_info = |
| av1_constref_from_sgrproj_bank(&rsc->sgrproj_bank, bank_ref); |
| // Update data within the stack. |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_SGRPROJ - 1] == RESTORE_SGRPROJ && |
| old_unit->rest_unit_idx != last_idx && |
| !check_sgrproj_eq(&old_rusi->sgrproj_info, ref_sgrproj_info)) |
| continue; |
| |
| if (old_unit->rest_unit_idx != begin_idx) { |
| equal_ref = check_sgrproj_bank_eq(&old_unit->ref_sgrproj_bank, |
| ref_sgrproj_info); |
| assert(equal_ref >= 0); // Must exist in bank |
| av1_upd_to_sgrproj_bank(&old_unit->ref_sgrproj_bank, equal_ref, |
| &rui_temp.sgrproj_info); |
| } |
| old_rusi->best_rtype[RESTORE_SGRPROJ - 1] = RESTORE_SGRPROJ; |
| old_rusi->sgrproj_info = rui_temp.sgrproj_info; |
| old_rusi->sse[RESTORE_SGRPROJ] = old_unit->merge_sse; |
| rsc->sse -= old_unit->current_sse; |
| rsc->sse += old_unit->merge_sse; |
| rsc->bits -= old_unit->current_bits; |
| rsc->bits += old_unit->merge_bits; |
| old_unit->current_sse = old_unit->merge_sse; |
| old_unit->current_bits = old_unit->merge_bits; |
| } |
| RstUnitSnapshot *last_unit = aom_vector_back(current_unit_stack); |
| equal_ref = check_sgrproj_bank_eq(&last_unit->ref_sgrproj_bank, |
| &rui_temp.sgrproj_info); |
| assert(equal_ref >= 0); // Must exist in bank |
| av1_upd_to_sgrproj_bank(&rsc->sgrproj_bank, equal_ref, |
| &rui_temp.sgrproj_info); |
| } else { |
| // Copy current unit from the top of the stack. |
| // memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| // unit_snapshot = *(RstUnitSnapshot *)aom_vector_back(current_unit_stack); |
| // RESTORE_NONE units are discarded if they make the sse worse compared to |
| // the no restore case, without consideration for bitrate. |
| if (rtype == RESTORE_SGRPROJ) { |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| // aom_vector_clear(current_unit_stack); |
| // aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| } else /*if (rusi->sse[RESTORE_SGRPROJ] > rusi->sse[RESTORE_NONE])*/ { |
| // Remove unit of RESTORE_NONE type only if its sse is worse (higher) |
| // than no_restore ss. |
| aom_vector_pop_back(current_unit_stack); |
| } |
| } |
| /* |
| intf("sgrproj(%d) [merge %f < nomerge %f] : %d, bank_size %d\n", |
| rsc->plane, cost_merge, cost_nomerge, (cost_merge < cost_nomerge), |
| rsc->sgrproj_bank.bank_size); |
| */ |
| #else |
| const int64_t bits_sgr = |
| x->mode_costs.sgrproj_restore_cost[1] + |
| count_sgrproj_bits(&x->mode_costs, &rusi->sgrproj_info, |
| &rsc->sgrproj_bank); |
| double cost_sgr = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_sgr >> 4, rusi->sse[RESTORE_SGRPROJ], bit_depth); |
| if (rusi->sgrproj_info.ep < 10) |
| cost_sgr *= |
| (1 + DUAL_SGR_PENALTY_MULT * rsc->lpf_sf->dual_sgr_penalty_level); |
| |
| RestorationType rtype = |
| (cost_sgr < cost_none) ? RESTORE_SGRPROJ : RESTORE_NONE; |
| rusi->best_rtype[RESTORE_SGRPROJ - 1] = rtype; |
| |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += (cost_sgr < cost_none) ? bits_sgr : bits_none; |
| if (cost_sgr < cost_none) |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| |
| static void initialize_rui_for_nonsep_search(const RestSearchCtxt *rsc, |
| RestorationUnitInfo *rui) { |
| memset(rui, 0, sizeof(*rui)); |
| rui->wiener_class_id_restrict = -1; |
| rui->wiener_class_id = rsc->cm->mi_params.wiener_class_id[rsc->plane]; |
| rui->wiener_class_id_stride = |
| rsc->cm->mi_params.wiener_class_id_stride[rsc->plane]; |
| rui->tskip = rsc->cm->mi_params.tx_skip[rsc->plane]; |
| rui->tskip_stride = rsc->cm->mi_params.tx_skip_stride[rsc->plane]; |
| rui->base_qindex = rsc->cm->quant_params.base_qindex; |
| if (rsc->plane != AOM_PLANE_Y) |
| rui->qindex_offset = rsc->plane == AOM_PLANE_U |
| ? rsc->cm->quant_params.u_dc_delta_q |
| : rsc->cm->quant_params.v_dc_delta_q; |
| else |
| rui->qindex_offset = rsc->cm->quant_params.y_dc_delta_q; |
| rui->luma = rsc->luma; |
| rui->luma_stride = rsc->luma_stride; |
| rui->plane = rsc->plane; |
| rui->wienerns_info.num_classes = rsc->num_filter_classes; |
| } |
| |
| static int count_pc_wiener_bits() { |
| // No side-information for now. |
| return 0; |
| } |
| |
| static AOM_INLINE void search_pc_wiener_visitor( |
| const RestorationTileLimits *limits, const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tile_rect; |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_seq; |
| |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| const int bit_depth = rsc->cm->seq_params.bit_depth; |
| const MACROBLOCK *const x = rsc->x; |
| const int64_t bits_none = x->mode_costs.pc_wiener_restore_cost[0]; |
| |
| bool skip_search = rsc->plane != AOM_PLANE_Y; |
| if (skip_search) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_PC_WIENER - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_PC_WIENER] = INT64_MAX; |
| return; |
| } |
| |
| RestorationUnitInfo rui; |
| initialize_rui_for_nonsep_search(rsc, &rui); |
| |
| rui.restoration_type = RESTORE_PC_WIENER; |
| rusi->sse[RESTORE_PC_WIENER] = |
| try_restoration_unit(rsc, limits, &rsc->tile_rect, &rui); |
| |
| double cost_none = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_none >> 4, rusi->sse[RESTORE_NONE], bit_depth); |
| |
| const int64_t bits_pc_wiener = |
| x->mode_costs.pc_wiener_restore_cost[1] + |
| (count_pc_wiener_bits() << AV1_PROB_COST_SHIFT); |
| double cost_pc_wiener = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_pc_wiener >> 4, rusi->sse[RESTORE_PC_WIENER], bit_depth); |
| |
| RestorationType rtype = |
| (cost_pc_wiener < cost_none) ? RESTORE_PC_WIENER : RESTORE_NONE; |
| rusi->best_rtype[RESTORE_PC_WIENER - 1] = rtype; |
| |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += (cost_pc_wiener < cost_none) ? bits_pc_wiener : bits_none; |
| // No side-information for now to copy to info. |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| void av1_compute_stats_highbd_c(int wiener_win, const uint16_t *dgd, |
| const uint16_t *src, int h_start, int h_end, |
| int v_start, int v_end, int dgd_stride, |
| int src_stride, int64_t *M, int64_t *H, |
| aom_bit_depth_t bit_depth) { |
| int i, j, k, l; |
| int32_t Y[WIENER_WIN2]; |
| const int wiener_win2 = wiener_win * wiener_win; |
| const int wiener_halfwin = (wiener_win >> 1); |
| uint16_t avg = |
| find_average_highbd(dgd, h_start, h_end, v_start, v_end, dgd_stride); |
| |
| uint8_t bit_depth_divider = 1; |
| if (bit_depth == AOM_BITS_12) |
| bit_depth_divider = 16; |
| else if (bit_depth == AOM_BITS_10) |
| bit_depth_divider = 4; |
| |
| memset(M, 0, sizeof(*M) * wiener_win2); |
| memset(H, 0, sizeof(*H) * wiener_win2 * wiener_win2); |
| for (i = v_start; i < v_end; i++) { |
| for (j = h_start; j < h_end; j++) { |
| const int32_t X = (int32_t)src[i * src_stride + j] - (int32_t)avg; |
| int idx = 0; |
| for (k = -wiener_halfwin; k <= wiener_halfwin; k++) { |
| for (l = -wiener_halfwin; l <= wiener_halfwin; l++) { |
| Y[idx] = (int32_t)dgd[(i + l) * dgd_stride + (j + k)] - (int32_t)avg; |
| idx++; |
| } |
| } |
| assert(idx == wiener_win2); |
| for (k = 0; k < wiener_win2; ++k) { |
| M[k] += (int64_t)Y[k] * X; |
| for (l = k; l < wiener_win2; ++l) { |
| // H is a symmetric matrix, so we only need to fill out the upper |
| // triangle here. We can copy it down to the lower triangle outside |
| // the (i, j) loops. |
| H[k * wiener_win2 + l] += (int64_t)Y[k] * Y[l]; |
| } |
| } |
| } |
| } |
| for (k = 0; k < wiener_win2; ++k) { |
| M[k] /= bit_depth_divider; |
| H[k * wiener_win2 + k] /= bit_depth_divider; |
| for (l = k + 1; l < wiener_win2; ++l) { |
| H[k * wiener_win2 + l] /= bit_depth_divider; |
| H[l * wiener_win2 + k] = H[k * wiener_win2 + l]; |
| } |
| } |
| } |
| |
| static INLINE int wrap_index(int i, int wiener_win) { |
| const int wiener_halfwin1 = (wiener_win >> 1) + 1; |
| return (i >= wiener_halfwin1 ? wiener_win - 1 - i : i); |
| } |
| |
| // Solve linear equations to find Wiener filter tap values |
| // Taps are output scaled by WIENER_FILT_STEP |
| static int linsolve_wiener(int n, int64_t *A, int stride, int64_t *b, |
| int32_t *x) { |
| for (int k = 0; k < n - 1; k++) { |
| // Partial pivoting: bring the row with the largest pivot to the top |
| for (int i = n - 1; i > k; i--) { |
| // If row i has a better (bigger) pivot than row (i-1), swap them |
| if (llabs(A[(i - 1) * stride + k]) < llabs(A[i * stride + k])) { |
| for (int j = 0; j < n; j++) { |
| const int64_t c = A[i * stride + j]; |
| A[i * stride + j] = A[(i - 1) * stride + j]; |
| A[(i - 1) * stride + j] = c; |
| } |
| const int64_t c = b[i]; |
| b[i] = b[i - 1]; |
| b[i - 1] = c; |
| } |
| } |
| // Forward elimination (convert A to row-echelon form) |
| for (int i = k; i < n - 1; i++) { |
| if (A[k * stride + k] == 0) return 0; |
| const int64_t c = A[(i + 1) * stride + k]; |
| const int64_t cd = A[k * stride + k]; |
| for (int j = 0; j < n; j++) { |
| A[(i + 1) * stride + j] -= c / 256 * A[k * stride + j] / cd * 256; |
| } |
| if (llabs(c) > INT_MAX || llabs(b[k]) > INT_MAX) { |
| // Reduce the probability of overflow by computing at lower precision |
| b[i + 1] -= AOMMAX(c, b[k]) / 256 * AOMMIN(c, b[k]) / cd * 256; |
| } else { |
| b[i + 1] -= c * b[k] / cd; |
| } |
| } |
| } |
| // Back-substitution |
| for (int i = n - 1; i >= 0; i--) { |
| if (A[i * stride + i] == 0) return 0; |
| int64_t c = 0; |
| for (int j = i + 1; j <= n - 1; j++) { |
| c += A[i * stride + j] * x[j] / WIENER_TAP_SCALE_FACTOR; |
| } |
| // Store filter taps x in scaled form. |
| x[i] = (int32_t)(WIENER_TAP_SCALE_FACTOR * (b[i] - c) / A[i * stride + i]); |
| } |
| |
| return 1; |
| } |
| |
| // Fix vector b, update vector a |
| static AOM_INLINE void update_a_sep_sym(int wiener_win, int64_t **Mc, |
| int64_t **Hc, int32_t *a, int32_t *b) { |
| int i, j; |
| int32_t S[WIENER_WIN]; |
| int64_t A[WIENER_HALFWIN1], B[WIENER_HALFWIN1 * WIENER_HALFWIN1]; |
| const int wiener_win2 = wiener_win * wiener_win; |
| const int wiener_halfwin1 = (wiener_win >> 1) + 1; |
| memset(A, 0, sizeof(A)); |
| memset(B, 0, sizeof(B)); |
| for (i = 0; i < wiener_win; i++) { |
| for (j = 0; j < wiener_win; ++j) { |
| const int jj = wrap_index(j, wiener_win); |
| A[jj] += Mc[i][j] * b[i] / WIENER_TAP_SCALE_FACTOR; |
| } |
| } |
| for (i = 0; i < wiener_win; i++) { |
| for (j = 0; j < wiener_win; j++) { |
| int k, l; |
| for (k = 0; k < wiener_win; ++k) { |
| for (l = 0; l < wiener_win; ++l) { |
| const int kk = wrap_index(k, wiener_win); |
| const int ll = wrap_index(l, wiener_win); |
| B[ll * wiener_halfwin1 + kk] += |
| Hc[j * wiener_win + i][k * wiener_win2 + l] * b[i] / |
| WIENER_TAP_SCALE_FACTOR * b[j] / WIENER_TAP_SCALE_FACTOR; |
| } |
| } |
| } |
| } |
| // Normalization enforcement in the system of equations itself |
| for (i = 0; i < wiener_halfwin1 - 1; ++i) { |
| A[i] -= |
| A[wiener_halfwin1 - 1] * 2 + |
| B[i * wiener_halfwin1 + wiener_halfwin1 - 1] - |
| 2 * B[(wiener_halfwin1 - 1) * wiener_halfwin1 + (wiener_halfwin1 - 1)]; |
| } |
| for (i = 0; i < wiener_halfwin1 - 1; ++i) { |
| for (j = 0; j < wiener_halfwin1 - 1; ++j) { |
| B[i * wiener_halfwin1 + j] -= |
| 2 * (B[i * wiener_halfwin1 + (wiener_halfwin1 - 1)] + |
| B[(wiener_halfwin1 - 1) * wiener_halfwin1 + j] - |
| 2 * B[(wiener_halfwin1 - 1) * wiener_halfwin1 + |
| (wiener_halfwin1 - 1)]); |
| } |
| } |
| if (linsolve_wiener(wiener_halfwin1 - 1, B, wiener_halfwin1, A, S)) { |
| S[wiener_halfwin1 - 1] = WIENER_TAP_SCALE_FACTOR; |
| for (i = wiener_halfwin1; i < wiener_win; ++i) { |
| S[i] = S[wiener_win - 1 - i]; |
| S[wiener_halfwin1 - 1] -= 2 * S[i]; |
| } |
| memcpy(a, S, wiener_win * sizeof(*a)); |
| } |
| } |
| |
| // Fix vector a, update vector b |
| static AOM_INLINE void update_b_sep_sym(int wiener_win, int64_t **Mc, |
| int64_t **Hc, int32_t *a, int32_t *b) { |
| int i, j; |
| int32_t S[WIENER_WIN]; |
| int64_t A[WIENER_HALFWIN1], B[WIENER_HALFWIN1 * WIENER_HALFWIN1]; |
| const int wiener_win2 = wiener_win * wiener_win; |
| const int wiener_halfwin1 = (wiener_win >> 1) + 1; |
| memset(A, 0, sizeof(A)); |
| memset(B, 0, sizeof(B)); |
| for (i = 0; i < wiener_win; i++) { |
| const int ii = wrap_index(i, wiener_win); |
| for (j = 0; j < wiener_win; j++) { |
| A[ii] += Mc[i][j] * a[j] / WIENER_TAP_SCALE_FACTOR; |
| } |
| } |
| |
| for (i = 0; i < wiener_win; i++) { |
| for (j = 0; j < wiener_win; j++) { |
| const int ii = wrap_index(i, wiener_win); |
| const int jj = wrap_index(j, wiener_win); |
| int k, l; |
| for (k = 0; k < wiener_win; ++k) { |
| for (l = 0; l < wiener_win; ++l) { |
| B[jj * wiener_halfwin1 + ii] += |
| Hc[i * wiener_win + j][k * wiener_win2 + l] * a[k] / |
| WIENER_TAP_SCALE_FACTOR * a[l] / WIENER_TAP_SCALE_FACTOR; |
| } |
| } |
| } |
| } |
| // Normalization enforcement in the system of equations itself |
| for (i = 0; i < wiener_halfwin1 - 1; ++i) { |
| A[i] -= |
| A[wiener_halfwin1 - 1] * 2 + |
| B[i * wiener_halfwin1 + wiener_halfwin1 - 1] - |
| 2 * B[(wiener_halfwin1 - 1) * wiener_halfwin1 + (wiener_halfwin1 - 1)]; |
| } |
| for (i = 0; i < wiener_halfwin1 - 1; ++i) { |
| for (j = 0; j < wiener_halfwin1 - 1; ++j) { |
| B[i * wiener_halfwin1 + j] -= |
| 2 * (B[i * wiener_halfwin1 + (wiener_halfwin1 - 1)] + |
| B[(wiener_halfwin1 - 1) * wiener_halfwin1 + j] - |
| 2 * B[(wiener_halfwin1 - 1) * wiener_halfwin1 + |
| (wiener_halfwin1 - 1)]); |
| } |
| } |
| if (linsolve_wiener(wiener_halfwin1 - 1, B, wiener_halfwin1, A, S)) { |
| S[wiener_halfwin1 - 1] = WIENER_TAP_SCALE_FACTOR; |
| for (i = wiener_halfwin1; i < wiener_win; ++i) { |
| S[i] = S[wiener_win - 1 - i]; |
| S[wiener_halfwin1 - 1] -= 2 * S[i]; |
| } |
| memcpy(b, S, wiener_win * sizeof(*b)); |
| } |
| } |
| |
| static int wiener_decompose_sep_sym(int wiener_win, int64_t *M, int64_t *H, |
| int32_t *a, int32_t *b) { |
| static const int32_t init_filt[WIENER_WIN] = { |
| WIENER_FILT_TAP0_MIDV, WIENER_FILT_TAP1_MIDV, WIENER_FILT_TAP2_MIDV, |
| WIENER_FILT_TAP3_MIDV, WIENER_FILT_TAP2_MIDV, WIENER_FILT_TAP1_MIDV, |
| WIENER_FILT_TAP0_MIDV, |
| }; |
| int64_t *Hc[WIENER_WIN2]; |
| int64_t *Mc[WIENER_WIN]; |
| int i, j, iter; |
| const int plane_off = (WIENER_WIN - wiener_win) >> 1; |
| const int wiener_win2 = wiener_win * wiener_win; |
| for (i = 0; i < wiener_win; i++) { |
| a[i] = b[i] = |
| WIENER_TAP_SCALE_FACTOR / WIENER_FILT_STEP * init_filt[i + plane_off]; |
| } |
| for (i = 0; i < wiener_win; i++) { |
| Mc[i] = M + i * wiener_win; |
| for (j = 0; j < wiener_win; j++) { |
| Hc[i * wiener_win + j] = |
| H + i * wiener_win * wiener_win2 + j * wiener_win; |
| } |
| } |
| |
| iter = 1; |
| while (iter < NUM_WIENER_ITERS) { |
| update_a_sep_sym(wiener_win, Mc, Hc, a, b); |
| update_b_sep_sym(wiener_win, Mc, Hc, a, b); |
| iter++; |
| } |
| return 1; |
| } |
| |
| // Computes the function x'*H*x - x'*M for the learned 2D filter x, and compares |
| // against identity filters; Final score is defined as the difference between |
| // the function values |
| static int64_t compute_score(int wiener_win, int64_t *M, int64_t *H, |
| InterpKernel vfilt, InterpKernel hfilt) { |
| int32_t ab[WIENER_WIN * WIENER_WIN]; |
| int16_t a[WIENER_WIN], b[WIENER_WIN]; |
| int64_t P = 0, Q = 0; |
| int64_t iP = 0, iQ = 0; |
| int64_t Score, iScore; |
| int i, k, l; |
| const int plane_off = (WIENER_WIN - wiener_win) >> 1; |
| const int wiener_win2 = wiener_win * wiener_win; |
| |
| aom_clear_system_state(); |
| |
| a[WIENER_HALFWIN] = b[WIENER_HALFWIN] = WIENER_FILT_STEP; |
| for (i = 0; i < WIENER_HALFWIN; ++i) { |
| a[i] = a[WIENER_WIN - i - 1] = vfilt[i]; |
| b[i] = b[WIENER_WIN - i - 1] = hfilt[i]; |
| a[WIENER_HALFWIN] -= 2 * a[i]; |
| b[WIENER_HALFWIN] -= 2 * b[i]; |
| } |
| memset(ab, 0, sizeof(ab)); |
| for (k = 0; k < wiener_win; ++k) { |
| for (l = 0; l < wiener_win; ++l) |
| ab[k * wiener_win + l] = a[l + plane_off] * b[k + plane_off]; |
| } |
| for (k = 0; k < wiener_win2; ++k) { |
| P += ab[k] * M[k] / WIENER_FILT_STEP / WIENER_FILT_STEP; |
| for (l = 0; l < wiener_win2; ++l) { |
| Q += ab[k] * H[k * wiener_win2 + l] * ab[l] / WIENER_FILT_STEP / |
| WIENER_FILT_STEP / WIENER_FILT_STEP / WIENER_FILT_STEP; |
| } |
| } |
| Score = Q - 2 * P; |
| |
| iP = M[wiener_win2 >> 1]; |
| iQ = H[(wiener_win2 >> 1) * wiener_win2 + (wiener_win2 >> 1)]; |
| iScore = iQ - 2 * iP; |
| |
| return Score - iScore; |
| } |
| |
| static AOM_INLINE void finalize_sym_filter(int wiener_win, int32_t *f, |
| InterpKernel fi) { |
| int i; |
| const int wiener_halfwin = (wiener_win >> 1); |
| |
| for (i = 0; i < wiener_halfwin; ++i) { |
| const int64_t dividend = (int64_t)f[i] * WIENER_FILT_STEP; |
| const int64_t divisor = WIENER_TAP_SCALE_FACTOR; |
| // Perform this division with proper rounding rather than truncation |
| if (dividend < 0) { |
| fi[i] = (int16_t)((dividend - (divisor / 2)) / divisor); |
| } else { |
| fi[i] = (int16_t)((dividend + (divisor / 2)) / divisor); |
| } |
| } |
| // Specialize for 7-tap filter |
| if (wiener_win == WIENER_WIN) { |
| fi[0] = CLIP(fi[0], WIENER_FILT_TAP0_MINV, WIENER_FILT_TAP0_MAXV); |
| fi[1] = CLIP(fi[1], WIENER_FILT_TAP1_MINV, WIENER_FILT_TAP1_MAXV); |
| fi[2] = CLIP(fi[2], WIENER_FILT_TAP2_MINV, WIENER_FILT_TAP2_MAXV); |
| } else { |
| fi[2] = CLIP(fi[1], WIENER_FILT_TAP2_MINV, WIENER_FILT_TAP2_MAXV); |
| fi[1] = CLIP(fi[0], WIENER_FILT_TAP1_MINV, WIENER_FILT_TAP1_MAXV); |
| fi[0] = 0; |
| } |
| // Satisfy filter constraints |
| fi[WIENER_WIN - 1] = fi[0]; |
| fi[WIENER_WIN - 2] = fi[1]; |
| fi[WIENER_WIN - 3] = fi[2]; |
| // The central element has an implicit +WIENER_FILT_STEP |
| fi[3] = -2 * (fi[0] + fi[1] + fi[2]); |
| } |
| |
| static int64_t count_wiener_bits(int wiener_win, const ModeCosts *mode_costs, |
| WienerInfo *wiener_info, |
| const WienerInfoBank *bank) { |
| (void)mode_costs; |
| int64_t bits = 0; |
| #if CONFIG_LR_MERGE_COEFFS |
| const int ref = wiener_info->bank_ref; |
| const WienerInfo *ref_wiener_info = av1_constref_from_wiener_bank(bank, ref); |
| const int equal_ref = check_wiener_eq(wiener_info, ref_wiener_info); |
| for (int k = 0; k < AOMMAX(0, bank->bank_size - 1); ++k) { |
| const int match = (k == ref); |
| bits += (1 << AV1_PROB_COST_SHIFT); |
| if (match) break; |
| } |
| bits += mode_costs->merged_param_cost[equal_ref]; |
| if (equal_ref) return bits; |
| #else |
| const WienerInfo *ref_wiener_info = av1_constref_from_wiener_bank(bank, 0); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| if (wiener_win == WIENER_WIN) |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1, |
| WIENER_FILT_TAP0_SUBEXP_K, |
| ref_wiener_info->vfilter[0] - WIENER_FILT_TAP0_MINV, |
| wiener_info->vfilter[0] - WIENER_FILT_TAP0_MINV) |
| << AV1_PROB_COST_SHIFT; |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1, |
| WIENER_FILT_TAP1_SUBEXP_K, |
| ref_wiener_info->vfilter[1] - WIENER_FILT_TAP1_MINV, |
| wiener_info->vfilter[1] - WIENER_FILT_TAP1_MINV) |
| << AV1_PROB_COST_SHIFT; |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1, |
| WIENER_FILT_TAP2_SUBEXP_K, |
| ref_wiener_info->vfilter[2] - WIENER_FILT_TAP2_MINV, |
| wiener_info->vfilter[2] - WIENER_FILT_TAP2_MINV) |
| << AV1_PROB_COST_SHIFT; |
| if (wiener_win == WIENER_WIN) |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1, |
| WIENER_FILT_TAP0_SUBEXP_K, |
| ref_wiener_info->hfilter[0] - WIENER_FILT_TAP0_MINV, |
| wiener_info->hfilter[0] - WIENER_FILT_TAP0_MINV) |
| << AV1_PROB_COST_SHIFT; |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1, |
| WIENER_FILT_TAP1_SUBEXP_K, |
| ref_wiener_info->hfilter[1] - WIENER_FILT_TAP1_MINV, |
| wiener_info->hfilter[1] - WIENER_FILT_TAP1_MINV) |
| << AV1_PROB_COST_SHIFT; |
| bits += aom_count_primitive_refsubexpfin( |
| WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1, |
| WIENER_FILT_TAP2_SUBEXP_K, |
| ref_wiener_info->hfilter[2] - WIENER_FILT_TAP2_MINV, |
| wiener_info->hfilter[2] - WIENER_FILT_TAP2_MINV) |
| << AV1_PROB_COST_SHIFT; |
| return bits; |
| } |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| static int64_t count_wiener_bits_set(int wiener_win, |
| const ModeCosts *mode_costs, |
| WienerInfo *info, |
| const WienerInfoBank *bank) { |
| int64_t best_bits = INT64_MAX; |
| int best_ref = -1; |
| for (int ref = 0; ref < AOMMAX(1, bank->bank_size); ++ref) { |
| info->bank_ref = ref; |
| const int64_t bits = count_wiener_bits(wiener_win, mode_costs, info, bank); |
| if (bits < best_bits) { |
| best_bits = bits; |
| best_ref = ref; |
| } |
| } |
| info->bank_ref = AOMMAX(0, best_ref); |
| return best_bits; |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| // If limits != NULL, calculates error for current restoration unit. |
| // Otherwise, calculates error for all units in the stack using stored limits. |
| static int64_t calc_finer_tile_search_error(const RestSearchCtxt *rsc, |
| const RestorationTileLimits *limits, |
| const AV1PixelRect *tile, |
| RestorationUnitInfo *rui) { |
| int64_t err = 0; |
| #if CONFIG_LR_MERGE_COEFFS |
| if (limits != NULL) { |
| err = try_restoration_unit(rsc, limits, tile, rui); |
| } else { |
| Vector *current_unit_stack = rsc->unit_stack; |
| Vector *current_unit_indices = rsc->unit_indices; |
| int n = 0; |
| int idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| if (old_unit->rest_unit_idx == idx) { |
| err += try_restoration_unit(rsc, &old_unit->limits, tile, rui); |
| n++; |
| if (n >= (int)current_unit_indices->size) break; |
| idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| } |
| } |
| } |
| #else // CONFIG_LR_MERGE_COEFFS |
| err = try_restoration_unit(rsc, limits, tile, rui); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| return err; |
| } |
| |
| #if CONFIG_LR_IMPROVEMENTS && CONFIG_LR_MERGE_COEFFS |
| // This function resets the dst buffers using the correct filters. |
| static int64_t reset_unit_stack_dst_buffers(const RestSearchCtxt *rsc, |
| const RestorationTileLimits *limits, |
| const AV1PixelRect *tile, |
| RestorationUnitInfo *rui) { |
| int64_t err = 0; |
| if (limits != NULL) { |
| err = try_restoration_unit(rsc, limits, tile, rui); |
| } else { |
| Vector *current_unit_stack = rsc->unit_stack; |
| Vector *current_unit_indices = rsc->unit_indices; |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| |
| // Will update filters in rui as we go along. Buffer the rui filters here. |
| WienerNonsepInfo last_unit_filters = rui->wienerns_info; |
| int n = 0; |
| int idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| |
| if (old_unit->rest_unit_idx == idx) { |
| if (idx == last_idx) { |
| // Use the input filters on the last unit. |
| copy_nsfilter_taps(&rui->wienerns_info, &last_unit_filters); |
| } else { |
| // Revert to old unit's filters. |
| copy_nsfilter_taps(&rui->wienerns_info, &old_rusi->wienerns_info); |
| } |
| err += try_restoration_unit(rsc, &old_unit->limits, tile, rui); |
| n++; |
| if (n >= (int)current_unit_indices->size) break; |
| idx = *(int *)aom_vector_const_get(current_unit_indices, n); |
| } |
| } |
| #ifndef NDEBUG |
| { |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| assert(check_wienerns_eq(&rui->wienerns_info, &last_unit_filters, |
| nsfilter_params->ncoeffs, ALL_WIENERNS_CLASSES)); |
| } |
| #endif // NDEBUG |
| } |
| return err; |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS && CONFIG_LR_MERGE_COEFFS |
| |
| #define USE_WIENER_REFINEMENT_SEARCH 1 |
| #define RD_WIENER_REFINEMENT_SEARCH 0 |
| static int64_t finer_tile_search_wiener(RestSearchCtxt *rsc, |
| const RestorationTileLimits *limits, |
| const AV1PixelRect *tile, |
| RestorationUnitInfo *rui, |
| int wiener_win, int reduced_wiener_win, |
| const WienerInfoBank *ref_wiener_bank) { |
| (void)wiener_win; |
| (void)ref_wiener_bank; |
| const int plane_off = (WIENER_WIN - reduced_wiener_win) >> 1; |
| int64_t err = calc_finer_tile_search_error(rsc, limits, tile, rui); |
| #if USE_WIENER_REFINEMENT_SEARCH |
| WienerInfo *plane_wiener = &rui->wiener_info; |
| |
| const MACROBLOCK *const x = rsc->x; |
| #if RD_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits = count_wiener_bits_set(wiener_win, &x->mode_costs, plane_wiener, |
| ref_wiener_bank); |
| #else |
| int64_t bits = count_wiener_bits(wiener_win, &x->mode_costs, plane_wiener, |
| ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #else |
| int64_t bits = 0; |
| #endif // RD_WIENER_REFINEMENT_SEARCH |
| double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST(x->rdmult, bits >> 4, err, |
| rsc->cm->seq_params.bit_depth); |
| int tap_min[] = { WIENER_FILT_TAP0_MINV, WIENER_FILT_TAP1_MINV, |
| WIENER_FILT_TAP2_MINV }; |
| int tap_max[] = { WIENER_FILT_TAP0_MAXV, WIENER_FILT_TAP1_MAXV, |
| WIENER_FILT_TAP2_MAXV }; |
| |
| // printf("err pre = %"PRId64"\n", err); |
| const int start_step = 4; |
| for (int s = start_step; s >= 1; s >>= 1) { |
| for (int p = plane_off; p < WIENER_HALFWIN; ++p) { |
| int skip = 0; |
| do { |
| if (plane_wiener->hfilter[p] - s >= tap_min[p]) { |
| plane_wiener->hfilter[p] -= s; |
| plane_wiener->hfilter[WIENER_WIN - p - 1] -= s; |
| plane_wiener->hfilter[WIENER_HALFWIN] += 2 * s; |
| int64_t err2 = calc_finer_tile_search_error(rsc, limits, tile, rui); |
| #if RD_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits_set(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #else // CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #else |
| int64_t bits2 = 0; |
| #endif // RD_WIENER_REFINEMENT_SEARCH |
| double cost2 = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits2 >> 4, err2, rsc->cm->seq_params.bit_depth); |
| if (cost2 > cost) { |
| plane_wiener->hfilter[p] += s; |
| plane_wiener->hfilter[WIENER_WIN - p - 1] += s; |
| plane_wiener->hfilter[WIENER_HALFWIN] -= 2 * s; |
| } else { |
| cost = cost2; |
| err = err2; |
| skip = 1; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| if (skip) break; |
| do { |
| if (plane_wiener->hfilter[p] + s <= tap_max[p]) { |
| plane_wiener->hfilter[p] += s; |
| plane_wiener->hfilter[WIENER_WIN - p - 1] += s; |
| plane_wiener->hfilter[WIENER_HALFWIN] -= 2 * s; |
| int64_t err2 = calc_finer_tile_search_error(rsc, limits, tile, rui); |
| #if RD_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits_set(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #else // CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #else |
| int64_t bits2 = 0; |
| #endif // RD_WIENER_REFINEMENT_SEARCH |
| double cost2 = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits2 >> 4, err2, rsc->cm->seq_params.bit_depth); |
| if (cost2 > cost) { |
| plane_wiener->hfilter[p] -= s; |
| plane_wiener->hfilter[WIENER_WIN - p - 1] -= s; |
| plane_wiener->hfilter[WIENER_HALFWIN] += 2 * s; |
| } else { |
| cost = cost2; |
| err = err2; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| } |
| for (int p = plane_off; p < WIENER_HALFWIN; ++p) { |
| int skip = 0; |
| do { |
| if (plane_wiener->vfilter[p] - s >= tap_min[p]) { |
| plane_wiener->vfilter[p] -= s; |
| plane_wiener->vfilter[WIENER_WIN - p - 1] -= s; |
| plane_wiener->vfilter[WIENER_HALFWIN] += 2 * s; |
| int64_t err2 = calc_finer_tile_search_error(rsc, limits, tile, rui); |
| #if RD_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits_set(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #else // CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #else |
| int64_t bits2 = 0; |
| #endif // RD_WIENER_REFINEMENT_SEARCH |
| double cost2 = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits2 >> 4, err2, rsc->cm->seq_params.bit_depth); |
| if (cost2 > cost) { |
| plane_wiener->vfilter[p] += s; |
| plane_wiener->vfilter[WIENER_WIN - p - 1] += s; |
| plane_wiener->vfilter[WIENER_HALFWIN] -= 2 * s; |
| } else { |
| cost = cost2; |
| err = err2; |
| skip = 1; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| if (skip) break; |
| do { |
| if (plane_wiener->vfilter[p] + s <= tap_max[p]) { |
| plane_wiener->vfilter[p] += s; |
| plane_wiener->vfilter[WIENER_WIN - p - 1] += s; |
| plane_wiener->vfilter[WIENER_HALFWIN] -= 2 * s; |
| int64_t err2 = calc_finer_tile_search_error(rsc, limits, tile, rui); |
| #if RD_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits_set(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #else // CONFIG_LR_MERGE_COEFFS |
| int64_t bits2 = count_wiener_bits(wiener_win, &x->mode_costs, |
| plane_wiener, ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #else |
| int64_t bits2 = 0; |
| #endif // RD_WIENER_REFINEMENT_SEARCH |
| double cost2 = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits2 >> 4, err2, rsc->cm->seq_params.bit_depth); |
| if (cost2 > cost) { |
| plane_wiener->vfilter[p] -= s; |
| plane_wiener->vfilter[WIENER_WIN - p - 1] -= s; |
| plane_wiener->vfilter[WIENER_HALFWIN] += 2 * s; |
| } else { |
| cost = cost2; |
| err = err2; |
| // At the highest step size continue moving in the same direction |
| if (s == start_step) continue; |
| } |
| } |
| break; |
| } while (1); |
| } |
| } |
| // printf("err post = %"PRId64"\n", err); |
| #endif // USE_WIENER_REFINEMENT_SEARCH |
| #if CONFIG_LR_MERGE_COEFFS |
| // Set bank_ref correctly |
| (void)count_wiener_bits_set(wiener_win, &x->mode_costs, plane_wiener, |
| ref_wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| return err; |
| } |
| |
| static AOM_INLINE void search_wiener_visitor( |
| const RestorationTileLimits *limits, const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tile_rect; |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_seq; |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| const MACROBLOCK *const x = rsc->x; |
| const int64_t bits_none = x->mode_costs.wiener_restore_cost[0]; |
| |
| // Skip Wiener search for low variance contents |
| if (rsc->lpf_sf->prune_wiener_based_on_src_var) { |
| const int scale[3] = { 0, 1, 2 }; |
| // Obtain the normalized Qscale |
| const int qs = av1_dc_quant_QTX(rsc->cm->quant_params.base_qindex, 0, |
| rsc->cm->seq_params.base_y_dc_delta_q, |
| rsc->cm->seq_params.bit_depth) >> |
| 3; |
| // Derive threshold as sqr(normalized Qscale) * scale / 16, |
| const uint64_t thresh = |
| (qs * qs * scale[rsc->lpf_sf->prune_wiener_based_on_src_var]) >> 4; |
| const uint64_t src_var = var_restoration_unit(limits, rsc->src, rsc->plane); |
| // Do not perform Wiener search if source variance is lower than threshold |
| // or if the reconstruction error is zero |
| int prune_wiener = (src_var < thresh) || (rusi->sse[RESTORE_NONE] == 0); |
| if (prune_wiener) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_WIENER - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_WIENER] = INT64_MAX; |
| if (rsc->lpf_sf->prune_sgr_based_on_wiener == 2) rusi->skip_sgr_eval = 1; |
| return; |
| } |
| } |
| |
| const int wiener_win = |
| (rsc->plane == AOM_PLANE_Y) ? WIENER_WIN : WIENER_WIN_CHROMA; |
| |
| int reduced_wiener_win = wiener_win; |
| if (rsc->lpf_sf->reduce_wiener_window_size) { |
| reduced_wiener_win = |
| (rsc->plane == AOM_PLANE_Y) ? WIENER_WIN_REDUCED : WIENER_WIN_CHROMA; |
| } |
| |
| int64_t M[WIENER_WIN2]; |
| int64_t H[WIENER_WIN2 * WIENER_WIN2]; |
| int32_t vfilter[WIENER_WIN], hfilter[WIENER_WIN]; |
| |
| const AV1_COMMON *const cm = rsc->cm; |
| av1_compute_stats_highbd(reduced_wiener_win, rsc->dgd_buffer, rsc->src_buffer, |
| limits->h_start, limits->h_end, limits->v_start, |
| limits->v_end, rsc->dgd_stride, rsc->src_stride, M, |
| H, cm->seq_params.bit_depth); |
| |
| if (!wiener_decompose_sep_sym(reduced_wiener_win, M, H, vfilter, hfilter)) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_WIENER - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_WIENER] = INT64_MAX; |
| if (rsc->lpf_sf->prune_sgr_based_on_wiener == 2) rusi->skip_sgr_eval = 1; |
| return; |
| } |
| |
| RestorationUnitInfo rui; |
| memset(&rui, 0, sizeof(rui)); |
| rui.restoration_type = RESTORE_WIENER; |
| finalize_sym_filter(reduced_wiener_win, vfilter, rui.wiener_info.vfilter); |
| finalize_sym_filter(reduced_wiener_win, hfilter, rui.wiener_info.hfilter); |
| |
| // Filter score computes the value of the function x'*A*x - x'*b for the |
| // learned filter and compares it against identity filer. If there is no |
| // reduction in the function, the filter is reverted back to identity |
| if (compute_score(reduced_wiener_win, M, H, rui.wiener_info.vfilter, |
| rui.wiener_info.hfilter) > 0) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_WIENER - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_WIENER] = INT64_MAX; |
| if (rsc->lpf_sf->prune_sgr_based_on_wiener == 2) rusi->skip_sgr_eval = 1; |
| return; |
| } |
| |
| aom_clear_system_state(); |
| |
| rusi->sse[RESTORE_WIENER] = |
| finer_tile_search_wiener(rsc, limits, &rsc->tile_rect, &rui, wiener_win, |
| reduced_wiener_win, &rsc->wiener_bank); |
| rusi->wiener_info = rui.wiener_info; |
| |
| if (reduced_wiener_win != WIENER_WIN) { |
| assert(rui.wiener_info.vfilter[0] == 0 && |
| rui.wiener_info.vfilter[WIENER_WIN - 1] == 0); |
| assert(rui.wiener_info.hfilter[0] == 0 && |
| rui.wiener_info.hfilter[WIENER_WIN - 1] == 0); |
| } |
| |
| double cost_none = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_none >> 4, rusi->sse[RESTORE_NONE], |
| rsc->cm->seq_params.bit_depth); |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| Vector *current_unit_stack = rsc->unit_stack; |
| int64_t bits_nomerge_base = |
| x->mode_costs.wiener_restore_cost[1] + |
| count_wiener_bits_set(wiener_win, &x->mode_costs, &rusi->wiener_info, |
| &rsc->wiener_bank); |
| const int bank_ref_base = rusi->wiener_info.bank_ref; |
| // Only test the reference in rusi->wiener_info.bank_ref, generated from |
| // the count call above. |
| |
| double cost_nomerge_base = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_nomerge_base >> 4, rusi->sse[RESTORE_WIENER], |
| rsc->cm->seq_params.bit_depth); |
| const int bits_min = x->mode_costs.wiener_restore_cost[1] + |
| x->mode_costs.merged_param_cost[1] + |
| (1 << AV1_PROB_COST_SHIFT); |
| const double cost_min = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_min >> 4, rusi->sse[RESTORE_WIENER], |
| rsc->cm->seq_params.bit_depth); |
| const double cost_nomerge_thr = (cost_nomerge_base + 3 * cost_min) / 4; |
| RestorationType rtype = |
| (cost_none <= cost_nomerge_thr) ? RESTORE_NONE : RESTORE_WIENER; |
| if (cost_none <= cost_nomerge_thr) { |
| bits_nomerge_base = bits_none; |
| cost_nomerge_base = cost_none; |
| } |
| |
| RstUnitSnapshot unit_snapshot; |
| memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| unit_snapshot.limits = *limits; |
| unit_snapshot.rest_unit_idx = rest_unit_idx; |
| memcpy(unit_snapshot.M, M, WIENER_WIN2 * sizeof(*M)); |
| memcpy(unit_snapshot.H, H, WIENER_WIN2 * WIENER_WIN2 * sizeof(*H)); |
| rusi->best_rtype[RESTORE_WIENER - 1] = rtype; |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += bits_nomerge_base; |
| unit_snapshot.current_sse = rusi->sse[rtype]; |
| unit_snapshot.current_bits = bits_nomerge_base; |
| // Only matters for first unit in stack. |
| unit_snapshot.ref_wiener_bank = rsc->wiener_bank; |
| // If current_unit_stack is empty, we can leave early. |
| if (aom_vector_is_empty(current_unit_stack)) { |
| if (rtype == RESTORE_WIENER) |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rusi->wiener_info); |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| // Handles special case where no-merge filter is equal to merged |
| // filter for the stack - we don't want to perform another merge and |
| // get a less optimal filter, but we want to continue building the stack. |
| int equal_ref; |
| if (rtype == RESTORE_WIENER && |
| (equal_ref = |
| check_wiener_bank_eq(&rsc->wiener_bank, &rusi->wiener_info)) >= 0) { |
| rsc->bits -= bits_nomerge_base; |
| rusi->wiener_info.bank_ref = equal_ref; |
| unit_snapshot.current_bits = |
| x->mode_costs.wiener_restore_cost[1] + |
| count_wiener_bits_set(wiener_win, &x->mode_costs, &rusi->wiener_info, |
| &rsc->wiener_bank); |
| rsc->bits += unit_snapshot.current_bits; |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| |
| // Push current unit onto stack. |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| |
| double cost_merge = DBL_MAX; |
| double cost_nomerge = 0; |
| int begin_idx = -1; |
| int bank_ref = -1; |
| RestorationUnitInfo rui_temp; |
| |
| // Trial start |
| for (int bank_ref_cand = 0; |
| bank_ref_cand < AOMMAX(1, rsc->wiener_bank.bank_size); bank_ref_cand++) { |
| #if MERGE_DRL_SEARCH_LEVEL == 1 |
| if (bank_ref_cand != 0 && bank_ref_cand != bank_ref_base) continue; |
| #elif MERGE_DRL_SEARCH_LEVEL == 2 |
| if (bank_ref_cand != bank_ref_base) continue; |
| #else |
| (void)bank_ref_base; |
| #endif |
| const WienerInfo *ref_wiener_info_cand = |
| av1_constref_from_wiener_bank(&rsc->wiener_bank, bank_ref_cand); |
| WienerInfo ref_wiener_info_tmp = *ref_wiener_info_cand; |
| const WienerInfoBank *begin_wiener_bank = NULL; |
| // Iterate once to get the begin unit of the run |
| int begin_idx_cand = -1; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_NONE || |
| (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info_cand))) { |
| if (check_wiener_bank_eq(&old_unit->ref_wiener_bank, |
| ref_wiener_info_cand) == -1) { |
| begin_idx_cand = old_unit->rest_unit_idx; |
| begin_wiener_bank = &old_unit->ref_wiener_bank; |
| } |
| } |
| } |
| if (begin_idx_cand == -1) continue; |
| assert(begin_wiener_bank != NULL); |
| begin_wiener_bank = |
| begin_wiener_bank == NULL ? &rsc->wiener_bank : begin_wiener_bank; |
| |
| Vector *current_unit_indices = rsc->unit_indices; |
| aom_vector_clear(current_unit_indices); |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info_cand)) |
| continue; |
| int index = old_unit->rest_unit_idx; |
| aom_vector_push_back(current_unit_indices, &index); |
| } |
| |
| int64_t M_AVG[WIENER_WIN2]; |
| int64_t H_AVG[WIENER_WIN2 * WIENER_WIN2]; |
| for (int index = 0; index < WIENER_WIN2; ++index) { |
| M_AVG[index] = M[index] / current_unit_indices->size; |
| } |
| for (int index = 0; index < WIENER_WIN2 * WIENER_WIN2; ++index) { |
| H_AVG[index] = H[index] / current_unit_indices->size; |
| } |
| // Iterate through vector to get current cost and the sum of M and H so far. |
| #ifndef NDEBUG |
| int num_units = 0; |
| #endif // NDEBUG |
| has_begun = false; |
| double cost_nomerge_cand = cost_nomerge_base; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| !check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info_cand)) |
| continue; |
| |
| cost_nomerge_cand += RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, old_unit->current_bits >> 4, old_unit->current_sse, |
| rsc->cm->seq_params.bit_depth); |
| for (int index = 0; index < WIENER_WIN2; ++index) { |
| M_AVG[index] += old_unit->M[index] / current_unit_indices->size; |
| } |
| for (int index = 0; index < WIENER_WIN2 * WIENER_WIN2; ++index) { |
| H_AVG[index] += old_unit->H[index] / current_unit_indices->size; |
| } |
| #ifndef NDEBUG |
| num_units++; |
| #endif // NDEBUG |
| } |
| assert(num_units + 1 == (int)current_unit_indices->size); |
| |
| // Generate new filter. |
| RestorationUnitInfo rui_temp_cand; |
| memset(&rui_temp_cand, 0, sizeof(rui_temp_cand)); |
| rui_temp_cand.restoration_type = RESTORE_WIENER; |
| int32_t vfilter_merge[WIENER_WIN], hfilter_merge[WIENER_WIN]; |
| wiener_decompose_sep_sym(reduced_wiener_win, M_AVG, H_AVG, vfilter_merge, |
| hfilter_merge); |
| finalize_sym_filter(reduced_wiener_win, vfilter_merge, |
| rui_temp_cand.wiener_info.vfilter); |
| finalize_sym_filter(reduced_wiener_win, hfilter_merge, |
| rui_temp_cand.wiener_info.hfilter); |
| finer_tile_search_wiener(rsc, NULL, &rsc->tile_rect, &rui_temp_cand, |
| wiener_win, reduced_wiener_win, begin_wiener_bank); |
| aom_vector_clear(current_unit_indices); |
| if (compute_score(reduced_wiener_win, M_AVG, H_AVG, |
| rui_temp_cand.wiener_info.vfilter, |
| rui_temp_cand.wiener_info.hfilter) > 0) { |
| continue; |
| } |
| |
| // Iterate through vector to get sse and bits for each on the new filter. |
| double cost_merge_cand = 0; |
| has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info_cand)) |
| continue; |
| |
| old_unit->merge_sse_cand = try_restoration_unit( |
| rsc, &old_unit->limits, &rsc->tile_rect, &rui_temp_cand); |
| // First unit in stack has larger unit_bits because the |
| // merged coeffs are linked to it. |
| if (old_unit->rest_unit_idx == begin_idx_cand) { |
| const int new_bits = (int)count_wiener_bits_set( |
| wiener_win, &x->mode_costs, &rui_temp_cand.wiener_info, |
| &old_unit->ref_wiener_bank); |
| old_unit->merge_bits_cand = |
| x->mode_costs.wiener_restore_cost[1] + new_bits; |
| } else { |
| equal_ref = check_wiener_bank_eq(&old_unit->ref_wiener_bank, |
| ref_wiener_info_cand); |
| assert(equal_ref >= 0); // Must exist in bank |
| ref_wiener_info_tmp.bank_ref = equal_ref; |
| const int merge_bits = (int)count_wiener_bits( |
| wiener_win, &x->mode_costs, &ref_wiener_info_tmp, |
| &old_unit->ref_wiener_bank); |
| old_unit->merge_bits_cand = |
| x->mode_costs.wiener_restore_cost[1] + merge_bits; |
| } |
| cost_merge_cand += RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, old_unit->merge_bits_cand >> 4, old_unit->merge_sse_cand, |
| rsc->cm->seq_params.bit_depth); |
| } |
| if (cost_merge_cand - cost_nomerge_cand < cost_merge - cost_nomerge) { |
| begin_idx = begin_idx_cand; |
| bank_ref = bank_ref_cand; |
| cost_merge = cost_merge_cand; |
| cost_nomerge = cost_nomerge_cand; |
| has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info_cand)) |
| continue; |
| old_unit->merge_sse = old_unit->merge_sse_cand; |
| old_unit->merge_bits = old_unit->merge_bits_cand; |
| } |
| rui_temp = rui_temp_cand; |
| } |
| } |
| // Trial end |
| |
| if (cost_merge < cost_nomerge) { |
| const WienerInfo *ref_wiener_info = |
| av1_constref_from_wiener_bank(&rsc->wiener_bank, bank_ref); |
| // Update data within the stack. |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_WIENER && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wiener_eq(&old_rusi->wiener_info, ref_wiener_info)) |
| continue; |
| |
| if (old_unit->rest_unit_idx != begin_idx) { // Not the first |
| equal_ref = |
| check_wiener_bank_eq(&old_unit->ref_wiener_bank, ref_wiener_info); |
| assert(equal_ref >= 0); // Must exist in bank |
| av1_upd_to_wiener_bank(&old_unit->ref_wiener_bank, equal_ref, |
| &rui_temp.wiener_info); |
| } |
| old_rusi->best_rtype[RESTORE_WIENER - 1] = RESTORE_WIENER; |
| old_rusi->wiener_info = rui_temp.wiener_info; |
| old_rusi->sse[RESTORE_WIENER] = old_unit->merge_sse; |
| rsc->sse -= old_unit->current_sse; |
| rsc->sse += old_unit->merge_sse; |
| rsc->bits -= old_unit->current_bits; |
| rsc->bits += old_unit->merge_bits; |
| old_unit->current_sse = old_unit->merge_sse; |
| old_unit->current_bits = old_unit->merge_bits; |
| } |
| assert(has_begun); |
| RstUnitSnapshot *last_unit = aom_vector_back(current_unit_stack); |
| equal_ref = check_wiener_bank_eq(&last_unit->ref_wiener_bank, |
| &rui_temp.wiener_info); |
| assert(equal_ref >= 0); // Must exist in bank |
| av1_upd_to_wiener_bank(&rsc->wiener_bank, equal_ref, &rui_temp.wiener_info); |
| } else { |
| // Copy current unit from the top of the stack. |
| // memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| // unit_snapshot = *(RstUnitSnapshot *)aom_vector_back(current_unit_stack); |
| // RESTORE_WIENER units become start of new stack, and |
| // RESTORE_NONE units are discarded. |
| if (rtype == RESTORE_WIENER) { |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rusi->wiener_info); |
| // aom_vector_clear(current_unit_stack); |
| // aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| } else /*if (rusi->sse[RESTORE_WIENER] > rusi->sse[RESTORE_NONE])*/ { |
| // Remove unit of RESTORE_NONE type only if its sse is worse (higher) |
| // than no_restore ss. |
| aom_vector_pop_back(current_unit_stack); |
| } |
| } |
| /* |
| printf("wiener(%d) [merge %f < nomerge %f] : %d, bank_size %d\n", |
| rsc->plane, cost_merge, cost_nomerge, (cost_merge < cost_nomerge), |
| rsc->wiener_bank.bank_size); |
| */ |
| #else |
| const int64_t bits_wiener = |
| x->mode_costs.wiener_restore_cost[1] + |
| count_wiener_bits(wiener_win, &x->mode_costs, &rusi->wiener_info, |
| &rsc->wiener_bank); |
| |
| double cost_wiener = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_wiener >> 4, rusi->sse[RESTORE_WIENER], |
| rsc->cm->seq_params.bit_depth); |
| |
| RestorationType rtype = |
| (cost_wiener < cost_none) ? RESTORE_WIENER : RESTORE_NONE; |
| rusi->best_rtype[RESTORE_WIENER - 1] = rtype; |
| |
| // Set 'skip_sgr_eval' based on rdcost ratio of RESTORE_WIENER and |
| // RESTORE_NONE or based on best_rtype |
| if (rsc->lpf_sf->prune_sgr_based_on_wiener == 1) { |
| rusi->skip_sgr_eval = cost_wiener > (1.01 * cost_none); |
| } else if (rsc->lpf_sf->prune_sgr_based_on_wiener == 2) { |
| rusi->skip_sgr_eval = rusi->best_rtype[RESTORE_WIENER - 1] == RESTORE_NONE; |
| } |
| |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += (cost_wiener < cost_none) ? bits_wiener : bits_none; |
| if (cost_wiener < cost_none) |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rusi->wiener_info); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |
| |
| static AOM_INLINE void search_norestore_visitor( |
| const RestorationTileLimits *limits, const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tile_rect; |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_seq; |
| |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| rusi->sse[RESTORE_NONE] = sse_restoration_unit( |
| limits, rsc->src, &rsc->cm->cur_frame->buf, rsc->plane); |
| |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| } |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| static int64_t count_wienerns_bits( |
| int plane, const ModeCosts *mode_costs, |
| const WienerNonsepInfo *wienerns_info, const WienerNonsepInfoBank *bank, |
| const WienernsFilterParameters *nsfilter_params, int wiener_class_id) { |
| (void)mode_costs; |
| int is_uv = (plane != AOM_PLANE_Y); |
| int64_t bits = 0; |
| int skip_filter_write_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| int ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| |
| int c_id_begin = 0; |
| int c_id_end = wienerns_info->num_classes; |
| if (wiener_class_id != ALL_WIENERNS_CLASSES) { |
| c_id_begin = wiener_class_id; |
| c_id_end = wiener_class_id + 1; |
| } |
| #if CONFIG_LR_MERGE_COEFFS |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| const int ref = wienerns_info->bank_ref_for_class[c_id]; |
| const WienerNonsepInfo *ref_wienerns_info = |
| av1_constref_from_wienerns_bank(bank, ref, c_id); |
| const int equal_ref = check_wienerns_eq(wienerns_info, ref_wienerns_info, |
| nsfilter_params->ncoeffs, c_id); |
| for (int k = 0; k < bank->bank_size_for_class[c_id] - 1; ++k) { |
| const int match = (k == ref); |
| bits += (1 << AV1_PROB_COST_SHIFT); |
| if (match) break; |
| } |
| bits += mode_costs->merged_param_cost[equal_ref]; |
| skip_filter_write_for_class[c_id] = equal_ref; |
| ref_for_class[c_id] = ref; |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| const int(*length_cost)[2] = mode_costs->wienerns_length_cost; |
| const int *uv_sym_cost = mode_costs->wienerns_uv_sym_cost; |
| #if ENABLE_LR_4PART_CODE |
| const int(*cost_4part)[4] = mode_costs->wienerns_4part_cost; |
| #endif // ENABLE_LR_4PART_CODE |
| const int(*wienerns_coeffs)[WIENERNS_COEFCFG_LEN] = nsfilter_params->coeffs; |
| |
| assert(c_id_begin >= 0); |
| assert(c_id_end <= WIENERNS_MAX_CLASSES); |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| if (skip_filter_write_for_class[c_id]) continue; |
| const WienerNonsepInfo *ref_wienerns_info = |
| av1_constref_from_wienerns_bank(bank, ref_for_class[c_id], c_id); |
| |
| const int16_t *wienerns_info_nsfilter = |
| const_nsfilter_taps(wienerns_info, c_id); |
| const int16_t *ref_wienerns_info_nsfilter = |
| const_nsfilter_taps(ref_wienerns_info, c_id); |
| |
| const int beg_feat = 0; |
| int end_feat = nsfilter_params->ncoeffs; |
| if (end_feat > 6) { |
| // Decide whether to signal a short (0) or long (1) filter |
| int filter_length_bit = 0; |
| for (int i = 6; i < end_feat; i++) { |
| if (wienerns_info_nsfilter[i] != 0) { |
| filter_length_bit = 1; |
| } |
| } |
| bits += length_cost[is_uv][filter_length_bit]; |
| end_feat = filter_length_bit ? nsfilter_params->ncoeffs : 6; |
| } |
| assert((end_feat & 1) == 0); |
| |
| int uv_sym = 0; |
| if (is_uv && end_feat > 6) { |
| uv_sym = 1; |
| for (int i = 6; i < end_feat; i += 2) { |
| if (wienerns_info_nsfilter[i + 1] != wienerns_info_nsfilter[i]) |
| uv_sym = 0; |
| } |
| bits += uv_sym_cost[uv_sym]; |
| } |
| |
| for (int i = beg_feat; i < end_feat; ++i) { |
| #if ENABLE_LR_4PART_CODE |
| bits += aom_count_4part_wref( |
| ref_wienerns_info_nsfilter[i] - |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID], |
| wienerns_info_nsfilter[i] - |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID], |
| cost_4part[wienerns_coeffs[i - beg_feat][WIENERNS_PAR_ID]], |
| wienerns_coeffs[i - beg_feat][WIENERNS_BIT_ID], AV1_PROB_COST_SHIFT); |
| #else |
| bits += aom_count_primitive_refsubexpfin( |
| (1 << wienerns_coeffs[i - beg_feat][WIENERNS_BIT_ID]), |
| wienerns_coeffs[i - beg_feat][WIENERNS_PAR_ID], |
| ref_wienerns_info_nsfilter[i] - |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID], |
| wienerns_info_nsfilter[i] - |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID]) |
| << AV1_PROB_COST_SHIFT; |
| #endif // ENABLE_LR_4PART_CODE |
| if (uv_sym && i >= 6) { |
| // Don't code symmetrical taps |
| assert(wienerns_info_nsfilter[i + 1] == wienerns_info_nsfilter[i]); |
| i += 1; |
| } |
| } |
| } |
| return bits; |
| } |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| static int64_t count_wienerns_bits_set( |
| int plane, const ModeCosts *mode_costs, WienerNonsepInfo *info, |
| const WienerNonsepInfoBank *bank, |
| const WienernsFilterParameters *nsfilter_params, int wiener_class_id) { |
| int64_t total_bits = 0; |
| 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) { |
| int64_t best_bits = INT64_MAX; |
| int best_ref = -1; |
| for (int ref = 0; ref < AOMMAX(1, bank->bank_size_for_class[c_id]); ++ref) { |
| info->bank_ref_for_class[c_id] = ref; |
| const int64_t bits = count_wienerns_bits(plane, mode_costs, info, bank, |
| nsfilter_params, c_id); |
| if (bits < best_bits) { |
| best_bits = bits; |
| best_ref = ref; |
| } |
| } |
| total_bits += best_bits; |
| info->bank_ref_for_class[c_id] = AOMMAX(0, best_ref); |
| } |
| return total_bits; |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| #define MAX(a, b) ((a) > (b) ? (a) : (b)) |
| #define MIN(a, b) ((a) > (b) ? (b) : (a)) |
| |
| static int64_t finer_tile_search_wienerns( |
| RestSearchCtxt *rsc, const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, RestorationUnitInfo *rui, |
| const WienernsFilterParameters *nsfilter_params, int ext_search, |
| const WienerNonsepInfoBank *ref_wienerns_bank, int wiener_class_id) { |
| assert(rsc->plane == rui->plane); |
| const MACROBLOCK *const x = rsc->x; |
| WienerNonsepInfo curr = rui->wienerns_info; |
| WienerNonsepInfo best = curr; |
| |
| int c_id_begin = wiener_class_id; |
| int c_id_end = wiener_class_id + 1; |
| rui->wiener_class_id_restrict = wiener_class_id; |
| if (wiener_class_id == ALL_WIENERNS_CLASSES) { |
| c_id_begin = 0; |
| c_id_end = rui->wienerns_info.num_classes; |
| rui->wiener_class_id_restrict = -1; |
| } |
| int64_t best_err = calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| #if CONFIG_LR_MERGE_COEFFS |
| // When wiener_class_id != ALL_WIENERNS_CLASSES we are calculating bits for |
| // wiener_class_id only since that is the filter we are changing. Should be OK |
| // since bits for classes outside wiener_class_id are not needed for decisions |
| // in this fn. |
| int64_t best_bits = count_wienerns_bits_set(rsc->plane, &x->mode_costs, &curr, |
| ref_wienerns_bank, |
| nsfilter_params, wiener_class_id); |
| #else |
| int64_t best_bits = |
| count_wienerns_bits(rsc->plane, &x->mode_costs, &curr, ref_wienerns_bank, |
| nsfilter_params, wiener_class_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| double best_cost = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, best_bits >> 4, best_err, rsc->cm->seq_params.bit_depth); |
| |
| const int beg_feat = 0; |
| const int end_feat = nsfilter_params->ncoeffs; |
| const int num_feat = nsfilter_params->ncoeffs; |
| const int(*wienerns_coeffs)[WIENERNS_COEFCFG_LEN] = nsfilter_params->coeffs; |
| |
| const int refine_iters = rsc->lpf_sf->wienerns_refine_iters; |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| int16_t *curr_nsfilter = nsfilter_taps(&curr, c_id); |
| int16_t *rui_wienerns_info_nsfilter = |
| nsfilter_taps(&rui->wienerns_info, c_id); |
| |
| // calc_finer_tile_search_error() above sets dst. Update only parts of dst |
| // relevant to c_id. |
| rui->wiener_class_id_restrict = c_id; |
| int src_range = 2; |
| for (int s = 0; s < refine_iters; ++s) { |
| int no_improv = 1; |
| for (int i = beg_feat; i < end_feat; ++i) { |
| int cmin = MAX(curr_nsfilter[i] - src_range, |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID]); |
| int cmax = |
| MIN(curr_nsfilter[i] + src_range, |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID] + |
| (1 << wienerns_coeffs[i - beg_feat][WIENERNS_BIT_ID])); |
| |
| for (int ci = cmin; ci < cmax; ++ci) { |
| if (ci == curr_nsfilter[i]) { |
| continue; |
| } |
| rui_wienerns_info_nsfilter[i] = ci; |
| const int64_t err = |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| #if CONFIG_LR_MERGE_COEFFS |
| const int64_t bits = count_wienerns_bits_set( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #else |
| const int64_t bits = count_wienerns_bits( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| const double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits >> 4, err, rsc->cm->seq_params.bit_depth); |
| if (cost < best_cost) { |
| no_improv = 0; |
| best_err = err; |
| best_cost = cost; |
| copy_nsfilter_taps_for_class(&best, &rui->wienerns_info, c_id); |
| } |
| } |
| copy_nsfilter_taps_for_class(&curr, &best, c_id); |
| rui_wienerns_info_nsfilter[i] = curr_nsfilter[i]; |
| } |
| if (no_improv) { |
| break; |
| } |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| copy_nsfilter_taps_for_class(&curr, &rui->wienerns_info, c_id); |
| } |
| // Re-establish dst. |
| if (c_id_end - c_id_begin > 1 && rui->wiener_class_id_restrict != -1) { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| } |
| } |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| |
| if (!ext_search) return best_err; |
| |
| // For UV plane, try reducing filter complexity by forcing cross-plane |
| // part of filter to be symmetrical |
| if (rsc->plane > 0) { |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| int16_t *rui_wienerns_info_nsfilter = |
| nsfilter_taps(&rui->wienerns_info, c_id); |
| rui->wiener_class_id_restrict = c_id; |
| |
| if (end_feat > 6) { |
| for (int i = 6; i < end_feat; i += 2) { |
| int avg = ROUND_POWER_OF_TWO( |
| rui_wienerns_info_nsfilter[i] + rui_wienerns_info_nsfilter[i + 1], |
| 1); |
| rui_wienerns_info_nsfilter[i] = avg; |
| rui_wienerns_info_nsfilter[i + 1] = avg; |
| } |
| const int64_t err = |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| #if CONFIG_LR_MERGE_COEFFS |
| const int64_t bits = count_wienerns_bits_set( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, ref_wienerns_bank, |
| nsfilter_params, c_id); |
| #else |
| const int64_t bits = |
| count_wienerns_bits(rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| const double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits >> 4, err, rsc->cm->seq_params.bit_depth); |
| if (cost < best_cost) { |
| best_err = err; |
| best_cost = cost; |
| copy_nsfilter_taps_for_class(&best, &rui->wienerns_info, c_id); |
| } else { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| } |
| } |
| // Re-establish dst. |
| if (c_id_end - c_id_begin > 1 && rui->wiener_class_id_restrict != -1) { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| } |
| } |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| } |
| |
| // Try reduced filters by forcing trailing coeffs to 0 |
| assert((end_feat & 1) == 0); |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| int16_t *rui_wienerns_info_nsfilter = |
| nsfilter_taps(&rui->wienerns_info, c_id); |
| rui->wiener_class_id_restrict = c_id; |
| |
| if (end_feat > 6) { |
| // Check if already reduced |
| int filter_length_bit = 0; |
| for (int i = 6; i < end_feat; i++) { |
| if (rui_wienerns_info_nsfilter[i] != 0) { |
| filter_length_bit = 1; |
| } |
| } |
| |
| if (filter_length_bit) { |
| for (int i = 6; i < end_feat; i++) { |
| rui_wienerns_info_nsfilter[i] = 0; |
| } |
| const int64_t err = |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| #if CONFIG_LR_MERGE_COEFFS |
| const int64_t bits = count_wienerns_bits_set( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, ref_wienerns_bank, |
| nsfilter_params, c_id); |
| #else |
| const int64_t bits = |
| count_wienerns_bits(rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| const double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits >> 4, err, rsc->cm->seq_params.bit_depth); |
| if (cost < best_cost) { |
| best_err = err; |
| best_cost = cost; |
| copy_nsfilter_taps_for_class(&best, &rui->wienerns_info, c_id); |
| } else { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| } |
| } |
| } |
| // Re-establish dst. |
| if (c_id_end - c_id_begin > 1 && rui->wiener_class_id_restrict != -1) { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| } |
| } |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| |
| if (ext_search == 1) return best_err; |
| |
| const int src_steps[][2] = { |
| { 1, -1 }, { -1, 1 }, { 1, 1 }, { -1, -1 }, { 2, 1 }, { 1, 2 }, |
| { -2, 1 }, { 1, -2 }, { 2, -1 }, { -1, 2 }, { -2, -1 }, { -1, -2 }, |
| }; |
| const int nsrc_steps = sizeof(src_steps) / (2 * sizeof(src_steps[0][0])); |
| for (int c_id = c_id_begin; c_id < c_id_end; ++c_id) { |
| int16_t *rui_wienerns_info_nsfilter = |
| nsfilter_taps(&rui->wienerns_info, c_id); |
| int16_t *curr_nsfilter = nsfilter_taps(&curr, c_id); |
| rui->wiener_class_id_restrict = c_id; |
| for (int s = 0; s < refine_iters; ++s) { |
| int no_improv = 1; |
| for (int i = beg_feat + (num_feat & 1); i < end_feat; i += 2) { |
| int cmin[2] = { wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID], |
| wienerns_coeffs[i + 1 - beg_feat][WIENERNS_MIN_ID] }; |
| int cmax[2] = { |
| wienerns_coeffs[i - beg_feat][WIENERNS_MIN_ID] + |
| (1 << wienerns_coeffs[i - beg_feat][WIENERNS_BIT_ID]), |
| wienerns_coeffs[i + 1 - beg_feat][WIENERNS_MIN_ID] + |
| (1 << wienerns_coeffs[i + 1 - beg_feat][WIENERNS_BIT_ID]) |
| }; |
| |
| for (int ci = 0; ci < nsrc_steps; ++ci) { |
| rui_wienerns_info_nsfilter[i] = curr_nsfilter[i] + src_steps[ci][0]; |
| rui_wienerns_info_nsfilter[i + 1] = |
| curr_nsfilter[i + 1] + src_steps[ci][1]; |
| if (rui_wienerns_info_nsfilter[i] < cmin[0] || |
| rui_wienerns_info_nsfilter[i] >= cmax[0] || |
| rui_wienerns_info_nsfilter[i + 1] < cmin[1] || |
| rui_wienerns_info_nsfilter[i + 1] >= cmax[1]) { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &curr, c_id); |
| continue; |
| } |
| const int64_t err = |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| #if CONFIG_LR_MERGE_COEFFS |
| const int64_t bits = count_wienerns_bits_set( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #else |
| const int64_t bits = count_wienerns_bits( |
| rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, c_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| const double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits >> 4, err, rsc->cm->seq_params.bit_depth); |
| if (cost < best_cost) { |
| no_improv = 0; |
| best_err = err; |
| best_cost = cost; |
| copy_nsfilter_taps_for_class(&best, &rui->wienerns_info, c_id); |
| } |
| } |
| copy_nsfilter_taps_for_class(&curr, &best, c_id); |
| rui_wienerns_info_nsfilter[i] = curr_nsfilter[i]; |
| rui_wienerns_info_nsfilter[i + 1] = curr_nsfilter[i + 1]; |
| } |
| if (no_improv) { |
| break; |
| } |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| copy_nsfilter_taps_for_class(&curr, &rui->wienerns_info, c_id); |
| } |
| // Re-establish dst. |
| if (c_id_end - c_id_begin > 1 && rui->wiener_class_id_restrict != -1) { |
| copy_nsfilter_taps_for_class(&rui->wienerns_info, &best, c_id); |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| } |
| } |
| |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| #if CONFIG_LR_MERGE_COEFFS |
| (void)count_wienerns_bits_set(rsc->plane, &x->mode_costs, &rui->wienerns_info, |
| ref_wienerns_bank, nsfilter_params, |
| wiener_class_id); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| return best_err; |
| } |
| |
| static int compute_wienerns_filter( |
| int n, const double *A, int stride, const double *b, double *tmpbuf, |
| int16_t *nsfilter, const WienernsFilterParameters *nsfilter_params) { |
| assert(n > 0); |
| assert(stride > 0); |
| |
| // Use temporary storage to avoid modifying A and b |
| double *R = tmpbuf; |
| double *tmp = tmpbuf + WIENERNS_R_SIZE; |
| |
| // Set up quantization data |
| double prec[WIENERNS_MAX] = { 0 }; |
| int32_t min[WIENERNS_MAX] = { 0 }; |
| int32_t max[WIENERNS_MAX] = { 0 }; |
| int32_t scale[WIENERNS_MAX] = { 0 }; |
| |
| assert(n <= nsfilter_params->ncoeffs); |
| for (int i = 0; i < n; i++) { |
| int min_val = nsfilter_params->coeffs[i][WIENERNS_MIN_ID]; |
| int range = 1 << nsfilter_params->coeffs[i][WIENERNS_BIT_ID]; |
| |
| prec[i] = (double)(1 << nsfilter_params->nsfilter_config.prec_bits); |
| min[i] = min_val; |
| max[i] = min_val + range - 1; |
| scale[i] = 1; |
| } |
| |
| // Solve problem |
| int32_t x[WIENERNS_MAX]; |
| int ret = |
| linsolve_spd_quantize(n, A, R, stride, b, tmp, x, prec, min, max, scale); |
| if (!ret) goto finished; |
| |
| // Convert results from 32-bit to 16-bit storage |
| for (int i = 0; i < n; i++) { |
| nsfilter[i] = x[i]; |
| } |
| |
| finished: |
| return ret; |
| } |
| |
| static int64_t compute_stats_for_wienerns_filter( |
| const uint16_t *dgd_hbd, const uint16_t *src_hbd, |
| const RestorationTileLimits *limits, int dgd_stride, int src_stride, |
| const RestorationUnitInfo *rui, int bit_depth, double *A, double *b, |
| const WienernsFilterParameters *nsfilter_params, int num_classes) { |
| (void)rui; |
| const uint16_t *luma_hbd = rui->luma; |
| |
| const int total_dim_A = num_classes * WIENERNS_MAX * WIENERNS_MAX; |
| const int stride_A = WIENERNS_MAX * WIENERNS_MAX; |
| const int total_dim_b = num_classes * WIENERNS_MAX; |
| const int stride_b = WIENERNS_MAX; |
| |
| int16_t buf[WIENERNS_MAX]; |
| memset(A, 0, sizeof(*A) * total_dim_A); |
| memset(b, 0, sizeof(*b) * total_dim_b); |
| |
| const int(*wienerns_config)[3] = nsfilter_params->nsfilter_config.config; |
| int is_uv = (rui->plane != AOM_PLANE_Y); |
| const int(*wienerns_config2)[3] = |
| is_uv ? nsfilter_params->nsfilter_config.config2 : NULL; |
| const int end_pixel = is_uv ? nsfilter_params->nsfilter_config.num_pixels + |
| nsfilter_params->nsfilter_config.num_pixels2 |
| : nsfilter_params->nsfilter_config.num_pixels; |
| const int num_feat = nsfilter_params->ncoeffs; |
| |
| int64_t real_sse = 0; // for debuggung purposes |
| for (int c_id = 0; c_id < num_classes; ++c_id) { |
| for (int i = limits->v_start; i < limits->v_end; ++i) { |
| for (int j = limits->h_start; j < limits->h_end; ++j) { |
| int dgd_id = i * dgd_stride + j; |
| int src_id = i * src_stride + j; |
| int luma_id = i * rui->luma_stride + j; |
| memset(buf, 0, sizeof(buf)); |
| for (int k = 0; k < end_pixel; ++k) { |
| const int cross = |
| (is_uv && k >= nsfilter_params->nsfilter_config.num_pixels); |
| |
| if (!cross) { |
| const int pos = wienerns_config[k][WIENERNS_BUF_POS]; |
| const int r = wienerns_config[k][WIENERNS_ROW_ID]; |
| const int c = wienerns_config[k][WIENERNS_COL_ID]; |
| if (r == 0 && c == 0) { |
| buf[pos] += 1; |
| continue; |
| } |
| buf[pos] += |
| clip_base((int16_t)dgd_hbd[(i + r) * dgd_stride + (j + c)] - |
| (int16_t)dgd_hbd[dgd_id], |
| bit_depth); |
| } else { |
| const int k2 = k - nsfilter_params->nsfilter_config.num_pixels; |
| const int pos = wienerns_config2[k2][WIENERNS_BUF_POS]; |
| const int r = wienerns_config2[k2][WIENERNS_ROW_ID]; |
| const int c = wienerns_config2[k2][WIENERNS_COL_ID]; |
| |
| buf[pos] += clip_base( |
| (int16_t)luma_hbd[(i + r) * rui->luma_stride + (j + c)] - |
| (int16_t)luma_hbd[luma_id], |
| bit_depth); |
| } |
| } |
| int16_t y; |
| y = ((int64_t)src_hbd[src_id] - dgd_hbd[dgd_id]); |
| for (int k = 0; k < num_feat; ++k) { |
| for (int l = 0; l <= k; ++l) { |
| A[k * num_feat + l + c_id * stride_A] += |
| (double)buf[k] * (double)buf[l]; |
| } |
| b[k + c_id * stride_b] += (double)buf[k] * (double)y; |
| } |
| real_sse += (int64_t)y * (int64_t)y; |
| } |
| } |
| for (int k = 0; k < num_feat; ++k) { |
| for (int l = k + 1; l < num_feat; ++l) { |
| A[k * num_feat + l + c_id * stride_A] = |
| A[l * num_feat + k + c_id * stride_A]; |
| } |
| } |
| } |
| return real_sse; |
| } |
| |
| static int compute_quantized_wienerns_filter( |
| RestSearchCtxt *rsc, const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, RestorationUnitInfo *rui, const double *A, |
| const double *b, int64_t real_sse, |
| const WienernsFilterParameters *nsfilter_params) { |
| const int num_classes = rsc->num_filter_classes; |
| assert(num_classes == rsc->wienerns_bank.filter[0].num_classes); |
| const int stride_A = WIENERNS_MAX * WIENERNS_MAX; |
| const int total_dim_b = num_classes * WIENERNS_MAX; |
| const int stride_b = WIENERNS_MAX; |
| |
| double solver_x[WIENERNS_MAX_CLASSES * WIENERNS_MAX]; |
| const int num_feat = nsfilter_params->ncoeffs; |
| |
| int ret = 0; |
| WienerNonsepInfo best = { 0 }; |
| best.num_classes = num_classes; |
| double best_cost = DBL_MAX; |
| |
| assert((num_feat & 1) == 0); |
| const int reduce_step = num_feat - 6; |
| const int max_reduce_steps_search = (num_feat > 6) ? reduce_step : 0; |
| for (int reduce = 0; reduce <= max_reduce_steps_search; |
| reduce += reduce_step) { |
| memset(solver_x, 0, sizeof(*solver_x) * total_dim_b); |
| // Try a filter shape with #parameters num_feat - reduce |
| int success = 0; |
| int linsolve_successful = 0; |
| for (int c_id = 0; c_id < num_classes; ++c_id) { |
| int16_t *nsfilter = nsfilter_taps(&rui->wienerns_info, c_id); |
| linsolve_successful = compute_wienerns_filter( |
| num_feat - reduce, A + c_id * stride_A, num_feat, b + c_id * stride_b, |
| rsc->wienerns_tmpbuf, nsfilter, nsfilter_params); |
| if (!linsolve_successful) break; |
| } |
| if (num_feat > reduce && linsolve_successful) { |
| do { |
| assert(rui->wiener_class_id_restrict == -1); |
| int64_t real_errq = |
| calc_finer_tile_search_error(rsc, limits, tile_rect, rui); |
| |
| // Found filter is worse than no filtering. |
| if (real_errq > real_sse) break; |
| #if CONFIG_LR_MERGE_COEFFS |
| int64_t bits = count_wienerns_bits_set( |
| rui->plane, &rsc->x->mode_costs, &rui->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, ALL_WIENERNS_CLASSES); |
| #else |
| int64_t bits = count_wienerns_bits( |
| rui->plane, &rsc->x->mode_costs, &rui->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, ALL_WIENERNS_CLASSES); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| double cost = |
| RDCOST_DBL_WITH_NATIVE_BD_DIST(rsc->x->rdmult, bits >> 4, real_errq, |
| rsc->cm->seq_params.bit_depth); |
| if (cost < best_cost) { |
| best_cost = cost; |
| copy_nsfilter_taps(&best, &rui->wienerns_info); |
| success = 1; |
| ret = 1; |
| } else { |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| } |
| } while (0); |
| if (ret && !success) break; |
| } |
| } |
| if (ret) { |
| copy_nsfilter_taps(&rui->wienerns_info, &best); |
| } |
| return ret; |
| } |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| |
| int get_merge_begin_index(const RestSearchCtxt *rsc, |
| const WienernsFilterParameters *nsfilter_params, |
| const WienerNonsepInfo *token_wienerns_info, |
| Vector *current_unit_stack, |
| WienerNonsepInfoBank **begin_bank, |
| int wiener_class_id) { |
| int begin_idx = -1; |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| int equal_ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| check_wienerns_eq(&old_rusi->wienerns_info, token_wienerns_info, |
| nsfilter_params->ncoeffs, wiener_class_id)) { |
| // Same filter as before. |
| if (check_wienerns_bank_eq(&old_unit->ref_wienerns_bank, |
| token_wienerns_info, nsfilter_params->ncoeffs, |
| wiener_class_id, equal_ref_for_class) == -1) { |
| // Head merge point for this filter. |
| begin_idx = old_unit->rest_unit_idx; |
| // Set merge-leader's bank. |
| *begin_bank = &old_unit->ref_wienerns_bank; |
| } |
| } |
| } |
| return begin_idx; |
| } |
| |
| void populate_current_unit_indices( |
| const RestSearchCtxt *rsc, const WienernsFilterParameters *nsfilter_params, |
| const WienerNonsepInfo *token_wienerns_info, int begin_idx_cand, |
| Vector *current_unit_stack, Vector *current_unit_indices, |
| int wiener_class_id) { |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wienerns_eq(&old_rusi->wienerns_info, token_wienerns_info, |
| nsfilter_params->ncoeffs, wiener_class_id)) |
| continue; |
| int index = old_unit->rest_unit_idx; |
| aom_vector_push_back(current_unit_indices, &index); |
| } |
| } |
| |
| double set_cand_merge_sse_and_bits( |
| RestSearchCtxt *rsc, const WienernsFilterParameters *nsfilter_params, |
| const AV1PixelRect *tile_rect, int begin_idx_cand, |
| Vector *current_unit_stack, WienerNonsepInfo *token_wienerns_info_cand, |
| RestorationUnitInfo *rui_merge_cand, int wiener_class_id) { |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| const int is_uv = (rsc->plane != AOM_PLANE_Y); |
| const MACROBLOCK *const x = rsc->x; |
| const int bit_depth = rsc->cm->seq_params.bit_depth; |
| |
| double cost_merge_cand = 0; |
| int equal_ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| rui_merge_cand->wiener_class_id_restrict = wiener_class_id; |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wienerns_eq(&old_rusi->wienerns_info, token_wienerns_info_cand, |
| nsfilter_params->ncoeffs, wiener_class_id)) |
| continue; |
| |
| old_unit->merge_sse_cand = |
| try_restoration_unit(rsc, &old_unit->limits, tile_rect, rui_merge_cand); |
| // First unit in stack has larger unit_bits because the |
| // merged coeffs are linked to it. |
| if (old_unit->rest_unit_idx == begin_idx_cand) { |
| // The first unit will have a different filter |
| // (rui_merge_cand->wienerns_info) to signal at wiener_class_id, same |
| // filters elsewhere. |
| WienerNonsepInfo tmp_filters = old_rusi->wienerns_info; |
| copy_nsfilter_taps_for_class(&tmp_filters, &rui_merge_cand->wienerns_info, |
| wiener_class_id); |
| const int new_bits = (int)count_wienerns_bits_set( |
| is_uv, &x->mode_costs, &tmp_filters, &old_unit->ref_wienerns_bank, |
| nsfilter_params, ALL_WIENERNS_CLASSES); |
| old_unit->merge_bits_cand = |
| x->mode_costs.wienerns_restore_cost[1] + new_bits; |
| } else if (old_unit->rest_unit_idx != last_idx) { |
| const int is_equal = check_wienerns_bank_eq( |
| &old_unit->ref_wienerns_bank, token_wienerns_info_cand, |
| nsfilter_params->ncoeffs, wiener_class_id, equal_ref_for_class); |
| (void)is_equal; |
| assert(is_equal >= 0); // Must exist in bank |
| const int merge_bits = (int)count_wienerns_bits( |
| is_uv, &x->mode_costs, &old_rusi->wienerns_info, |
| &old_unit->ref_wienerns_bank, nsfilter_params, ALL_WIENERNS_CLASSES); |
| assert(merge_bits == count_wienerns_bits_set( |
| is_uv, &x->mode_costs, &old_rusi->wienerns_info, |
| &old_unit->ref_wienerns_bank, nsfilter_params, |
| ALL_WIENERNS_CLASSES)); |
| old_unit->merge_bits_cand = |
| x->mode_costs.wienerns_restore_cost[1] + merge_bits; |
| } else { |
| // This should be the last RU in the chain we are optimizing. |
| // Old bank is not updated. Use the old value in token_wienerns_info_cand |
| // to calculate the merge-ref. |
| const int is_equal = check_wienerns_bank_eq( |
| &old_unit->ref_wienerns_bank, token_wienerns_info_cand, |
| nsfilter_params->ncoeffs, wiener_class_id, equal_ref_for_class); |
| (void)is_equal; |
| assert(is_equal >= 0); // Must exist in bank |
| |
| // token_wienerns_info_cand has the best filters for classes < |
| // wiener_class_id and the token filter at wiener_class_id. Remaining |
| // filters are the computed RU filters that have not entered the merge |
| // trial. |
| token_wienerns_info_cand->bank_ref_for_class[wiener_class_id] = |
| equal_ref_for_class[wiener_class_id]; |
| |
| // Using count_wienerns_bits_set just in case. |
| const int merge_bits = (int)count_wienerns_bits_set( |
| is_uv, &x->mode_costs, token_wienerns_info_cand, |
| &old_unit->ref_wienerns_bank, nsfilter_params, ALL_WIENERNS_CLASSES); |
| old_unit->merge_bits_cand = |
| x->mode_costs.wienerns_restore_cost[1] + merge_bits; |
| } |
| cost_merge_cand += RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, old_unit->merge_bits_cand >> 4, old_unit->merge_sse_cand, |
| bit_depth); |
| } |
| return cost_merge_cand; |
| } |
| |
| double accumulate_merge_stats(const RestSearchCtxt *rsc, |
| const WienernsFilterParameters *nsfilter_params, |
| const WienerNonsepInfo *ref_wienerns_info_cand, |
| int begin_idx_cand, Vector *current_unit_stack, |
| Vector *current_unit_indices, |
| double *solver_A_AVG, double *solver_b_AVG, |
| int dim_A, int dim_b, int offset_A, int offset_b, |
| int wiener_class_id) { |
| (void)current_unit_indices; |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| const MACROBLOCK *const x = rsc->x; |
| const int bit_depth = rsc->cm->seq_params.bit_depth; |
| double cost_nomerge_cand = 0; |
| bool has_begun = false; |
| int num_units = 0; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_unit->rest_unit_idx == last_idx) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| !check_wienerns_eq(&old_rusi->wienerns_info, ref_wienerns_info_cand, |
| nsfilter_params->ncoeffs, wiener_class_id)) |
| continue; |
| |
| cost_nomerge_cand += |
| RDCOST_DBL_WITH_NATIVE_BD_DIST(x->rdmult, old_unit->current_bits >> 4, |
| old_unit->current_sse, bit_depth); |
| |
| for (int index = 0; index < dim_A; ++index) { |
| solver_A_AVG[index] += old_unit->A[index + offset_A]; |
| } |
| for (int index = 0; index < dim_b; ++index) { |
| solver_b_AVG[index] += old_unit->b[index + offset_b]; |
| } |
| num_units++; |
| } |
| assert(num_units + 1 == (int)current_unit_indices->size); |
| // Divide A and b by vector size + 1 to get average. |
| for (int index = 0; index < dim_A; ++index) { |
| solver_A_AVG[index] = DIVIDE_AND_ROUND(solver_A_AVG[index], num_units + 1); |
| } |
| for (int index = 0; index < dim_b; ++index) { |
| solver_b_AVG[index] = DIVIDE_AND_ROUND(solver_b_AVG[index], num_units + 1); |
| } |
| |
| return cost_nomerge_cand; |
| } |
| |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| static void gather_stats_wienerns(const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, |
| int rest_unit_idx, |
| int rest_unit_idx_in_rutile, void *priv, |
| int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_in_rutile; |
| (void)tile_rect; |
| |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| |
| RestorationUnitInfo rui; |
| initialize_rui_for_nonsep_search(rsc, &rui); |
| rui.restoration_type = RESTORE_WIENER_NONSEP; |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| assert(rsc->num_filter_classes == rsc->wienerns_bank.filter[0].num_classes); |
| |
| // Calculate and save this RU's stats. |
| RstUnitStats unit_stats; |
| unit_stats.real_sse = compute_stats_for_wienerns_filter( |
| rsc->dgd_buffer, rsc->src_buffer, limits, rsc->dgd_stride, |
| rsc->src_stride, &rui, rsc->cm->seq_params.bit_depth, unit_stats.A, |
| unit_stats.b, nsfilter_params, rsc->num_stat_classes); |
| unit_stats.ru_idx = rest_unit_idx; |
| unit_stats.ru_idx_in_tile = rest_unit_idx_in_rutile - rsc->ru_idx_base; |
| unit_stats.plane = rsc->plane; |
| unit_stats.num_stats_classes = rsc->num_stat_classes; |
| aom_vector_push_back(rsc->wienerns_stats, &unit_stats); |
| return; |
| } |
| |
| static void search_wienerns_visitor(const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, |
| int rest_unit_idx, |
| int rest_unit_idx_in_rutile, void *priv, |
| int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)tile_rect; |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_in_rutile; |
| |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| const MACROBLOCK *const x = rsc->x; |
| const int64_t bits_none = x->mode_costs.wienerns_restore_cost[0]; |
| const int bit_depth = rsc->cm->seq_params.bit_depth; |
| double cost_none = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_none >> 4, rusi->sse[RESTORE_NONE], bit_depth); |
| |
| RestorationUnitInfo rui; |
| initialize_rui_for_nonsep_search(rsc, &rui); |
| rui.restoration_type = RESTORE_WIENER_NONSEP; |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| |
| const RstUnitStats *unit_stats = (const RstUnitStats *)aom_vector_const_get( |
| rsc->wienerns_stats, rest_unit_idx_in_rutile); |
| assert(unit_stats->ru_idx == rest_unit_idx); |
| assert(unit_stats->ru_idx_in_tile + rsc->ru_idx_base == |
| rest_unit_idx_in_rutile); |
| assert(unit_stats->plane == rsc->plane); |
| |
| if (!compute_quantized_wienerns_filter( |
| rsc, limits, &rsc->tile_rect, &rui, unit_stats->A, unit_stats->b, |
| unit_stats->real_sse, nsfilter_params)) { |
| rsc->bits += bits_none; |
| rsc->sse += rusi->sse[RESTORE_NONE]; |
| rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] = RESTORE_NONE; |
| rusi->sse[RESTORE_WIENER_NONSEP] = INT64_MAX; |
| return; |
| } |
| aom_clear_system_state(); |
| rusi->sse[RESTORE_WIENER_NONSEP] = finer_tile_search_wienerns( |
| rsc, limits, &rsc->tile_rect, &rui, nsfilter_params, 1, |
| &rsc->wienerns_bank, ALL_WIENERNS_CLASSES); |
| |
| rusi->wienerns_info = rui.wienerns_info; |
| assert(rusi->sse[RESTORE_WIENER_NONSEP] != INT64_MAX); |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| const int num_classes = rsc->num_filter_classes; |
| assert(num_classes == rsc->wienerns_bank.filter[0].num_classes); |
| if (num_classes > 1) { |
| rui.wiener_class_id_restrict = -1; |
| calc_finer_tile_search_error(rsc, limits, &rsc->tile_rect, &rui); |
| } |
| double solver_A_AVG[WIENERNS_MAX * WIENERNS_MAX]; |
| const int class_dim_A = WIENERNS_MAX * WIENERNS_MAX; |
| double solver_b_AVG[WIENERNS_MAX]; |
| const int class_dim_b = WIENERNS_MAX; |
| |
| int is_uv = (rsc->plane != AOM_PLANE_Y); |
| Vector *current_unit_stack = rsc->unit_stack; |
| int64_t bits_nomerge_base = |
| x->mode_costs.wienerns_restore_cost[1] + |
| count_wienerns_bits_set(rsc->plane, &x->mode_costs, &rusi->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, |
| ALL_WIENERNS_CLASSES); |
| // Only test the reference in rusi->wienerns_info.bank_ref, generated from |
| // the count call above. |
| int ns_bank_ref_base[WIENERNS_MAX_CLASSES]; |
| memcpy(ns_bank_ref_base, rusi->wienerns_info.bank_ref_for_class, |
| num_classes * sizeof(*ns_bank_ref_base)); |
| |
| // Copy the bank_refs to rui. |
| memcpy(rui.wienerns_info.bank_ref_for_class, |
| rusi->wienerns_info.bank_ref_for_class, |
| num_classes * sizeof(*ns_bank_ref_base)); |
| double cost_nomerge_base = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_nomerge_base >> 4, rusi->sse[RESTORE_WIENER_NONSEP], |
| bit_depth); |
| const int bits_min = x->mode_costs.wienerns_restore_cost[1] + |
| x->mode_costs.merged_param_cost[1] + |
| (1 << AV1_PROB_COST_SHIFT); |
| const double cost_min = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_min >> 4, rusi->sse[RESTORE_WIENER_NONSEP], bit_depth); |
| const double cost_nomerge_thr = (cost_nomerge_base + 3 * cost_min) / 4; |
| const RestorationType rtype = |
| (cost_none <= cost_nomerge_thr) ? RESTORE_NONE : RESTORE_WIENER_NONSEP; |
| if (cost_none <= cost_nomerge_thr) { |
| bits_nomerge_base = bits_none; |
| cost_nomerge_base = cost_none; |
| } |
| |
| RstUnitSnapshot unit_snapshot; |
| memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| unit_snapshot.limits = *limits; |
| unit_snapshot.rest_unit_idx = rest_unit_idx; |
| unit_snapshot.A = unit_stats->A; |
| unit_snapshot.b = unit_stats->b; |
| rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] = rtype; |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += bits_nomerge_base; |
| unit_snapshot.current_sse = rusi->sse[rtype]; |
| unit_snapshot.current_bits = bits_nomerge_base; |
| // Only matters for first unit in stack. |
| unit_snapshot.ref_wienerns_bank = rsc->wienerns_bank; |
| // If current_unit_stack is empty, we can leave early. |
| if (aom_vector_is_empty(current_unit_stack)) { |
| if (rtype == RESTORE_WIENER_NONSEP) |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rusi->wienerns_info, |
| ALL_WIENERNS_CLASSES); |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| // Handles special case where no-merge filter is equal to merged |
| // filter for the stack - we don't want to perform another merge and |
| // get a less optimal filter, but we want to continue building the stack. |
| int equal_ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| if (rtype == RESTORE_WIENER_NONSEP && |
| check_wienerns_bank_eq(&rsc->wienerns_bank, &rusi->wienerns_info, |
| nsfilter_params->ncoeffs, ALL_WIENERNS_CLASSES, |
| equal_ref_for_class) >= 0) { |
| rsc->bits -= bits_nomerge_base; |
| memcpy(rusi->wienerns_info.bank_ref_for_class, equal_ref_for_class, |
| rusi->wienerns_info.num_classes * (*equal_ref_for_class)); |
| unit_snapshot.current_bits = |
| x->mode_costs.wienerns_restore_cost[1] + |
| count_wienerns_bits_set(is_uv, &x->mode_costs, &rusi->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, |
| ALL_WIENERNS_CLASSES); |
| rsc->bits += unit_snapshot.current_bits; |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| return; |
| } |
| // Push current unit onto stack. |
| aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| const int last_idx = |
| ((RstUnitSnapshot *)aom_vector_back(current_unit_stack))->rest_unit_idx; |
| |
| double cost_merge = DBL_MAX; |
| double cost_nomerge = 0; |
| int begin_idx[WIENERNS_MAX_CLASSES]; |
| int bank_ref[WIENERNS_MAX_CLASSES]; |
| |
| // Set rui_merge_best as the current best filters with the best refs. |
| RestorationUnitInfo rui_merge_best = rui; |
| |
| // Trial start |
| int merged_class_count = 0; |
| for (int c_id = 0; c_id < num_classes; ++c_id) { |
| bank_ref[c_id] = -1; |
| begin_idx[c_id] = -1; |
| for (int bank_ref_cand = 0; |
| bank_ref_cand < |
| AOMMAX(1, rsc->wienerns_bank.bank_size_for_class[c_id]); |
| bank_ref_cand++) { |
| #if MERGE_DRL_SEARCH_LEVEL == 1 |
| // Only check the best and zero references for the solved filter. |
| if (bank_ref_cand != 0 && bank_ref_cand != ns_bank_ref_base[c_id]) |
| continue; |
| #elif MERGE_DRL_SEARCH_LEVEL == 2 |
| // Only check the best reference for the solved filter. |
| if (bank_ref_cand != ns_bank_ref_base[c_id]) continue; |
| #else |
| (void)ns_bank_ref_base; |
| #endif |
| |
| // Needed to track the set of merge candidate RUs. |
| // set_merge_sse_and_bits() uses ALL_WIENERNS_CLASSES to calculate bits. |
| // Hence initialize with the best filters we have from rui_merge_best but |
| // use the c_id filter from the bank. The latter is needed to calculate |
| // merge bits for c_id, the former all other bits. |
| WienerNonsepInfo token_wienerns_info_cand = rui_merge_best.wienerns_info; |
| copy_nsfilter_taps_for_class( |
| &token_wienerns_info_cand, |
| av1_constref_from_wienerns_bank(&rsc->wienerns_bank, bank_ref_cand, |
| c_id), |
| c_id); |
| token_wienerns_info_cand.bank_ref_for_class[c_id] = bank_ref_cand; |
| |
| // Keep track of would be merge leader's bank. |
| WienerNonsepInfoBank *begin_wienerns_bank = NULL; |
| // Get the begin unit of the run using the candidate taps. |
| int begin_idx_cand = |
| get_merge_begin_index(rsc, nsfilter_params, &token_wienerns_info_cand, |
| current_unit_stack, &begin_wienerns_bank, c_id); |
| if (begin_idx_cand == -1) continue; |
| assert(begin_wienerns_bank != NULL); |
| begin_wienerns_bank = begin_wienerns_bank != NULL ? &rsc->wienerns_bank |
| : begin_wienerns_bank; |
| |
| // Populate current_unit_indices with the indices of RUs using this |
| // filter. |
| Vector *current_unit_indices = rsc->unit_indices; |
| aom_vector_clear(current_unit_indices); |
| populate_current_unit_indices( |
| rsc, nsfilter_params, &token_wienerns_info_cand, begin_idx_cand, |
| current_unit_stack, current_unit_indices, c_id); |
| |
| // Initialize stats. |
| double cost_nomerge_cand = cost_nomerge_base; |
| const int offset_A = c_id * class_dim_A; |
| memcpy(solver_A_AVG, unit_stats->A + offset_A, |
| class_dim_A * sizeof(*unit_stats->A)); |
| |
| const int offset_b = c_id * class_dim_b; |
| memcpy(solver_b_AVG, unit_stats->b + offset_b, |
| class_dim_b * sizeof(*unit_stats->b)); |
| |
| // Get current cost and the average of A and b. |
| cost_nomerge_cand += accumulate_merge_stats( |
| rsc, nsfilter_params, &token_wienerns_info_cand, begin_idx_cand, |
| current_unit_stack, current_unit_indices, solver_A_AVG, solver_b_AVG, |
| class_dim_A, class_dim_b, offset_A, offset_b, c_id); |
| |
| // Generate new filter. |
| RestorationUnitInfo rui_merge_cand = rui_merge_best; |
| rui_merge_cand.restoration_type = RESTORE_WIENER_NONSEP; |
| |
| const int num_feat = nsfilter_params->ncoeffs; |
| int16_t *nsfilter = nsfilter_taps(&rui_merge_cand.wienerns_info, c_id); |
| int linsolve_successful = compute_wienerns_filter( |
| num_feat, solver_A_AVG, num_feat, solver_b_AVG, rsc->wienerns_tmpbuf, |
| nsfilter, nsfilter_params); |
| if (!linsolve_successful) continue; |
| |
| aom_clear_system_state(); |
| |
| // After this call rsc will have updated buffers. We will reset below if |
| // not merging. |
| finer_tile_search_wienerns(rsc, NULL, &rsc->tile_rect, &rui_merge_cand, |
| nsfilter_params, 1, begin_wienerns_bank, c_id); |
| |
| // Iterate through vector to set candidate merge sse and bits on |
| // current_unit_stack. |
| const double cost_merge_cand = set_cand_merge_sse_and_bits( |
| rsc, nsfilter_params, &rsc->tile_rect, begin_idx_cand, |
| current_unit_stack, &token_wienerns_info_cand, &rui_merge_cand, c_id); |
| |
| // Find the candidate that brings the largest improvement over touched |
| // RUs. The best such candidate can still be worse than nomerge. |
| if (cost_merge_cand - cost_nomerge_cand < cost_merge - cost_nomerge) { |
| begin_idx[c_id] = begin_idx_cand; |
| bank_ref[c_id] = bank_ref_cand; |
| cost_merge = cost_merge_cand; |
| cost_nomerge = cost_nomerge_cand; |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx_cand) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wienerns_eq(&old_rusi->wienerns_info, |
| &token_wienerns_info_cand, |
| nsfilter_params->ncoeffs, c_id)) |
| continue; |
| old_unit->merge_sse = old_unit->merge_sse_cand; |
| old_unit->merge_bits = old_unit->merge_bits_cand; |
| } |
| |
| if (cost_merge < cost_nomerge) { |
| // We found a better merge candidate that will be merged. Update best |
| // filters. |
| // Keep track of bank_ref_for_class as we will assign rui_merge_best |
| // to token_wienerns_info_cand which in turn will be used to calculate |
| // bits in set_cand_merge_sse_and_bits(). |
| rui_merge_cand.wienerns_info.bank_ref_for_class[c_id] = bank_ref_cand; |
| copy_nsfilter_taps_for_class(&rui_merge_best.wienerns_info, |
| &rui_merge_cand.wienerns_info, c_id); |
| } |
| } |
| if (num_classes > 1 && |
| (begin_idx[c_id] != begin_idx_cand || cost_merge >= cost_nomerge)) { |
| // We will not be merging this trial even if it is the best cand. Reset |
| // rsc buffers to the best solution so far. Re-establish dst. |
| rui_merge_best.wiener_class_id_restrict = c_id; |
| reset_unit_stack_dst_buffers(rsc, NULL, &rsc->tile_rect, |
| &rui_merge_best); |
| } |
| aom_vector_clear(current_unit_indices); |
| } |
| // Trial end |
| |
| RstUnitSnapshot *last_unit = aom_vector_back(current_unit_stack); |
| RestUnitSearchInfo *last_rusi = &rsc->rusi[last_unit->rest_unit_idx]; |
| (void)last_rusi; |
| if (cost_merge < cost_nomerge && begin_idx[c_id] != -1) { |
| ++merged_class_count; |
| const WienerNonsepInfo *token_wienerns_info = |
| av1_constref_from_wienerns_bank(&rsc->wienerns_bank, bank_ref[c_id], |
| c_id); |
| // Update data within the stack. |
| bool has_begun = false; |
| VECTOR_FOR_EACH(current_unit_stack, listed_unit) { |
| RstUnitSnapshot *old_unit = (RstUnitSnapshot *)(listed_unit.pointer); |
| RestUnitSearchInfo *old_rusi = &rsc->rusi[old_unit->rest_unit_idx]; |
| if (old_unit->rest_unit_idx == begin_idx[c_id]) has_begun = true; |
| if (!has_begun) continue; |
| if (old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] == |
| RESTORE_WIENER_NONSEP && |
| old_unit->rest_unit_idx != last_idx && |
| !check_wienerns_eq(&old_rusi->wienerns_info, token_wienerns_info, |
| nsfilter_params->ncoeffs, c_id)) |
| continue; |
| |
| if (old_unit->rest_unit_idx != begin_idx[c_id]) { |
| const int is_equal = check_wienerns_bank_eq( |
| &old_unit->ref_wienerns_bank, token_wienerns_info, |
| nsfilter_params->ncoeffs, c_id, equal_ref_for_class); |
| (void)is_equal; |
| assert(is_equal >= 0); // Must exist in bank |
| // Update bank. |
| av1_upd_to_wienerns_bank(&old_unit->ref_wienerns_bank, |
| equal_ref_for_class[c_id], |
| &rui_merge_best.wienerns_info, c_id); |
| // Copy filter taps. |
| copy_nsfilter_taps_for_class(&old_rusi->wienerns_info, |
| &rui_merge_best.wienerns_info, c_id); |
| // Keep track of bank_ref as copy_nsfilter_taps_for_class updates it. |
| old_rusi->wienerns_info.bank_ref_for_class[c_id] = |
| equal_ref_for_class[c_id]; |
| } else { |
| // Merge leader. Copy filter taps. |
| copy_nsfilter_taps_for_class(&old_rusi->wienerns_info, |
| &rui_merge_best.wienerns_info, c_id); |
| // Keep track of bank_ref as copy_nsfilter_taps_for_class updates it. |
| count_wienerns_bits_set( |
| is_uv, &x->mode_costs, &old_rusi->wienerns_info, |
| &old_unit->ref_wienerns_bank, nsfilter_params, c_id); |
| } |
| old_rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] = RESTORE_WIENER_NONSEP; |
| old_rusi->sse[RESTORE_WIENER_NONSEP] = old_unit->merge_sse; |
| rsc->sse -= old_unit->current_sse; |
| rsc->sse += old_unit->merge_sse; |
| rsc->bits -= old_unit->current_bits; |
| rsc->bits += old_unit->merge_bits; |
| old_unit->current_sse = old_unit->merge_sse; |
| old_unit->current_bits = old_unit->merge_bits; |
| } |
| // Above we updated the entire stack. Here we update rsc->wienerns_bank. |
| const int is_equal = check_wienerns_bank_eq( |
| &last_unit->ref_wienerns_bank, &rui_merge_best.wienerns_info, |
| nsfilter_params->ncoeffs, c_id, equal_ref_for_class); |
| (void)is_equal; |
| assert(is_equal >= 0); // Must exist in bank |
| assert(rui_merge_best.wienerns_info.bank_ref_for_class[c_id] == |
| equal_ref_for_class[c_id]); |
| av1_upd_to_wienerns_bank(&rsc->wienerns_bank, equal_ref_for_class[c_id], |
| &rui_merge_best.wienerns_info, c_id); |
| } else { |
| assert(check_wienerns_eq(&last_rusi->wienerns_info, |
| &rui_merge_best.wienerns_info, |
| nsfilter_params->ncoeffs, c_id)); |
| // Copy current unit from the top of the stack. |
| // memset(&unit_snapshot, 0, sizeof(unit_snapshot)); |
| // unit_snapshot = *(RstUnitSnapshot |
| // *)aom_vector_back(current_unit_stack); RESTORE_WIENER_NONSEP units |
| // become start of new stack, and RESTORE_NONE units are discarded. |
| if (rtype == RESTORE_WIENER_NONSEP) { |
| // We may be merging some c_ids but not this one. |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rusi->wienerns_info, |
| c_id); |
| // aom_vector_clear(current_unit_stack); |
| // aom_vector_push_back(current_unit_stack, &unit_snapshot); |
| } |
| } |
| } |
| if (merged_class_count == 0 && rtype != RESTORE_WIENER_NONSEP) { |
| aom_vector_pop_back(current_unit_stack); |
| } |
| #else // CONFIG_LR_MERGE_COEFFS |
| const int64_t bits_wienerns = |
| x->mode_costs.wienerns_restore_cost[1] + |
| count_wienerns_bits(rui.plane, &x->mode_costs, &rusi->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, |
| ALL_WIENERNS_CLASSES); |
| double cost_wienerns = RDCOST_DBL_WITH_NATIVE_BD_DIST( |
| x->rdmult, bits_wienerns >> 4, rusi->sse[RESTORE_WIENER_NONSEP], |
| bit_depth); |
| const RestorationType rtype = |
| (cost_wienerns < cost_none) ? RESTORE_WIENER_NONSEP : RESTORE_NONE; |
| rusi->best_rtype[RESTORE_WIENER_NONSEP - 1] = rtype; |
| rsc->sse += rusi->sse[rtype]; |
| rsc->bits += (cost_wienerns < cost_none) ? bits_wienerns : bits_none; |
| if (cost_wienerns < cost_none) |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rusi->wienerns_info, |
| ALL_WIENERNS_CLASSES); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| static int get_switchable_restore_cost(const AV1_COMMON *const cm, |
| const MACROBLOCK *const x, int plane, |
| int rest_type) { |
| (void)cm; |
| (void)plane; |
| #if CONFIG_LR_IMPROVEMENTS |
| int cost = 0; |
| for (int re = 0; re <= cm->features.lr_last_switchable_ndx[plane]; re++) { |
| if (cm->features.lr_tools_disable_mask[plane] & (1 << re)) continue; |
| const int found = (re == rest_type); |
| cost += x->mode_costs.switchable_flex_restore_cost[re][plane][found]; |
| if (found) break; |
| } |
| return cost; |
| #else |
| return x->mode_costs.switchable_restore_cost[rest_type]; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| |
| static int64_t count_switchable_bits(int rest_type, RestSearchCtxt *rsc, |
| RestUnitSearchInfo *rusi) { |
| const MACROBLOCK *const x = rsc->x; |
| #if CONFIG_LR_IMPROVEMENTS |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| const int wiener_win = |
| (rsc->plane == AOM_PLANE_Y) ? WIENER_WIN : WIENER_WIN_CHROMA; |
| if (rest_type > RESTORE_NONE) { |
| if (rusi->best_rtype[rest_type - 1] == RESTORE_NONE) |
| rest_type = RESTORE_NONE; |
| } |
| int64_t coeff_bits = 0; |
| switch (rest_type) { |
| case RESTORE_NONE: coeff_bits = 0; break; |
| case RESTORE_WIENER: |
| #if CONFIG_LR_MERGE_COEFFS |
| coeff_bits = count_wiener_bits_set(wiener_win, &x->mode_costs, |
| &rusi->wiener_info, &rsc->wiener_bank); |
| #else |
| coeff_bits = count_wiener_bits(wiener_win, &x->mode_costs, |
| &rusi->wiener_info, &rsc->wiener_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| break; |
| case RESTORE_SGRPROJ: |
| #if CONFIG_LR_MERGE_COEFFS |
| coeff_bits = count_sgrproj_bits_set(&x->mode_costs, &rusi->sgrproj_info, |
| &rsc->sgrproj_bank); |
| #else |
| coeff_bits = count_sgrproj_bits(&x->mode_costs, &rusi->sgrproj_info, |
| &rsc->sgrproj_bank); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| break; |
| #if CONFIG_LR_IMPROVEMENTS |
| case RESTORE_PC_WIENER: |
| // No side-information for now. |
| coeff_bits = 0; |
| break; |
| case RESTORE_WIENER_NONSEP: |
| #if CONFIG_LR_MERGE_COEFFS |
| coeff_bits = count_wienerns_bits_set( |
| rsc->plane, &x->mode_costs, &rusi->wienerns_info, &rsc->wienerns_bank, |
| nsfilter_params, ALL_WIENERNS_CLASSES); |
| #else |
| coeff_bits = count_wienerns_bits( |
| rsc->plane, &x->mode_costs, &rusi->wienerns_info, &rsc->wienerns_bank, |
| nsfilter_params, ALL_WIENERNS_CLASSES); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| break; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| default: assert(0); break; |
| } |
| const int64_t bits = |
| get_switchable_restore_cost(rsc->cm, x, rsc->plane, rest_type) + |
| coeff_bits; |
| return bits; |
| } |
| |
| static void search_switchable_visitor(const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, |
| void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)limits; |
| (void)tile_rect; |
| (void)tmpbuf; |
| (void)rlbs; |
| (void)rest_unit_idx_seq; |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| |
| const MACROBLOCK *const x = rsc->x; |
| |
| double best_cost = 0; |
| int64_t best_bits = 0; |
| RestorationType best_rtype = RESTORE_NONE; |
| |
| for (RestorationType r = 0; r < RESTORE_SWITCHABLE_TYPES; ++r) { |
| // Check for the condition that wiener or sgrproj search could not |
| // find a solution or the solution was worse than RESTORE_NONE. |
| // In either case the best_rtype will be set as RESTORE_NONE. These |
| // should be skipped from the test below. |
| if (r > RESTORE_NONE) { |
| if (rusi->best_rtype[r - 1] == RESTORE_NONE) continue; |
| } |
| #if CONFIG_LR_IMPROVEMENTS |
| if (rsc->cm->features.lr_tools_disable_mask[rsc->plane] & (1 << r)) |
| continue; |
| if (rsc->plane != AOM_PLANE_Y && r == RESTORE_PC_WIENER) continue; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| const int64_t sse = rusi->sse[r]; |
| int64_t bits = count_switchable_bits(r, rsc, rusi); |
| double cost = RDCOST_DBL_WITH_NATIVE_BD_DIST(x->rdmult, bits >> 4, sse, |
| rsc->cm->seq_params.bit_depth); |
| if (r == RESTORE_SGRPROJ && rusi->sgrproj_info.ep < 10) |
| cost *= (1 + DUAL_SGR_PENALTY_MULT * rsc->lpf_sf->dual_sgr_penalty_level); |
| if (r == 0 || cost < best_cost) { |
| best_cost = cost; |
| best_bits = bits; |
| best_rtype = r; |
| } |
| } |
| |
| rusi->best_rtype[RESTORE_SWITCHABLE - 1] = best_rtype; |
| rsc->sse += rusi->sse[best_rtype]; |
| rsc->bits += best_bits; |
| |
| if (best_rtype == RESTORE_WIENER) { |
| #if CONFIG_LR_MERGE_COEFFS |
| const int equal_ref = |
| check_wiener_bank_eq(&rsc->wiener_bank, &rusi->wiener_info); |
| if (equal_ref == -1 || rsc->wiener_bank.bank_size == 0) |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rusi->wiener_info); |
| #else |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rusi->wiener_info); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } else if (best_rtype == RESTORE_SGRPROJ) { |
| #if CONFIG_LR_MERGE_COEFFS |
| const int equal_ref = |
| check_sgrproj_bank_eq(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| if (equal_ref == -1 || rsc->sgrproj_bank.bank_size == 0) |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| #else |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rusi->sgrproj_info); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #if CONFIG_LR_IMPROVEMENTS |
| } else if (best_rtype == RESTORE_PC_WIENER) { |
| // No side-information for now. |
| } else if (best_rtype == RESTORE_WIENER_NONSEP) { |
| #if CONFIG_LR_MERGE_COEFFS |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| int equal_ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| for (int c_id = 0; c_id < rusi->wienerns_info.num_classes; ++c_id) { |
| const int is_equal = check_wienerns_bank_eq( |
| &rsc->wienerns_bank, &rusi->wienerns_info, nsfilter_params->ncoeffs, |
| c_id, equal_ref_for_class); |
| if (is_equal == -1) { |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rusi->wienerns_info, |
| c_id); |
| } |
| } |
| #else |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rusi->wienerns_info, |
| ALL_WIENERNS_CLASSES); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| } |
| |
| static void adjust_frame_rtype(RestorationInfo *rsi, int plane_ntiles, |
| RestSearchCtxt *rsc, const ToolCfg *tool_cfg) { |
| (void)rsc; |
| (void)tool_cfg; |
| #if CONFIG_LR_IMPROVEMENTS |
| rsi->sw_lr_tools_disable_mask = 0; |
| uint8_t sw_lr_tools_disable_mask = 0; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| if (rsi->frame_restoration_type == RESTORE_NONE) return; |
| int tool_count[RESTORE_SWITCHABLE_TYPES] = { 0 }; |
| for (int u = 0; u < plane_ntiles; ++u) { |
| RestorationType rt = rsi->unit_info[u].restoration_type; |
| tool_count[rt]++; |
| } |
| int ntools = 0; |
| RestorationType rused = RESTORE_NONE; |
| for (int j = 1; j < RESTORE_SWITCHABLE_TYPES; ++j) { |
| if (tool_count[j] > 0) { |
| ntools++; |
| rused = j; |
| #if CONFIG_LR_IMPROVEMENTS |
| assert((rsc->cm->features.lr_tools_disable_mask[rsc->plane] & (1 << j)) == |
| 0); |
| } else { |
| sw_lr_tools_disable_mask |= (1 << j); |
| #else |
| assert(IMPLIES(j == RESTORE_WIENER, tool_cfg->enable_wiener)); |
| assert(IMPLIES(j == RESTORE_SGRPROJ, tool_cfg->enable_sgrproj)); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| } |
| rsi->frame_restoration_type = ntools < 2 ? rused : RESTORE_SWITCHABLE; |
| #if CONFIG_LR_IMPROVEMENTS |
| rsi->num_filter_classes = rsc->num_filter_classes; |
| if (rsi->frame_restoration_type == RESTORE_SWITCHABLE && |
| rsc->cm->features.lr_tools_count[rsc->plane] > 2) { |
| rsi->sw_lr_tools_disable_mask = sw_lr_tools_disable_mask; |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| return; |
| } |
| |
| static AOM_INLINE void copy_unit_info(RestorationType frame_rtype, |
| const RestUnitSearchInfo *rusi, |
| RestorationUnitInfo *rui, |
| RestSearchCtxt *rsc) { |
| #if CONFIG_LR_MERGE_COEFFS |
| const ModeCosts *mode_costs = &rsc->x->mode_costs; |
| #else |
| (void)rsc; |
| #endif // CONFIG_LR_MERGE_COEFFS |
| assert(frame_rtype > 0); |
| rui->restoration_type = frame_rtype == RESTORE_NONE |
| ? RESTORE_NONE |
| : rusi->best_rtype[frame_rtype - 1]; |
| if (rui->restoration_type == RESTORE_WIENER) { |
| rui->wiener_info = rusi->wiener_info; |
| #if CONFIG_LR_MERGE_COEFFS |
| const int wiener_win = |
| (rsc->plane == AOM_PLANE_Y) ? WIENER_WIN : WIENER_WIN_CHROMA; |
| const int equal_ref = |
| check_wiener_bank_eq(&rsc->wiener_bank, &rui->wiener_info); |
| if (equal_ref >= 0) { |
| rui->wiener_info.bank_ref = equal_ref; |
| if (rsc->wiener_bank.bank_size == 0) |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rui->wiener_info); |
| } else { |
| count_wiener_bits_set(wiener_win, mode_costs, &rui->wiener_info, |
| &rsc->wiener_bank); |
| av1_add_to_wiener_bank(&rsc->wiener_bank, &rui->wiener_info); |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } else if (rui->restoration_type == RESTORE_SGRPROJ) { |
| rui->sgrproj_info = rusi->sgrproj_info; |
| #if CONFIG_LR_MERGE_COEFFS |
| const int equal_ref = |
| check_sgrproj_bank_eq(&rsc->sgrproj_bank, &rui->sgrproj_info); |
| if (equal_ref >= 0) { |
| rui->sgrproj_info.bank_ref = equal_ref; |
| if (rsc->sgrproj_bank.bank_size == 0) |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rui->sgrproj_info); |
| } else { |
| count_sgrproj_bits_set(mode_costs, &rui->sgrproj_info, |
| &rsc->sgrproj_bank); |
| av1_add_to_sgrproj_bank(&rsc->sgrproj_bank, &rui->sgrproj_info); |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #if CONFIG_LR_IMPROVEMENTS |
| } else if (rui->restoration_type == RESTORE_PC_WIENER) { |
| // No side-information for now. |
| } else if (rui->restoration_type == RESTORE_WIENER_NONSEP) { |
| rui->wienerns_info = rusi->wienerns_info; |
| #if CONFIG_LR_MERGE_COEFFS |
| const WienernsFilterParameters *nsfilter_params = get_wienerns_parameters( |
| rsc->cm->quant_params.base_qindex, rsc->plane != AOM_PLANE_Y); |
| int equal_ref_for_class[WIENERNS_MAX_CLASSES] = { 0 }; |
| count_wienerns_bits_set(rsc->plane, mode_costs, &rui->wienerns_info, |
| &rsc->wienerns_bank, nsfilter_params, |
| ALL_WIENERNS_CLASSES); |
| for (int c_id = 0; c_id < rui->wienerns_info.num_classes; ++c_id) { |
| const int is_equal = check_wienerns_bank_eq( |
| &rsc->wienerns_bank, &rui->wienerns_info, nsfilter_params->ncoeffs, |
| c_id, equal_ref_for_class); |
| if (is_equal == -1) { |
| av1_add_to_wienerns_bank(&rsc->wienerns_bank, &rui->wienerns_info, |
| c_id); |
| } |
| } |
| #endif // CONFIG_LR_MERGE_COEFFS |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| } |
| |
| // Calls visitor function fun() for one specific RU in frame |
| // Note that RU-tiles are different from coded tiles since the RU sizes can be |
| // different from Sb sizes and also because there could be super-resolution. |
| // A RU-tile is a rectangle in the upsampled domain that includes all RUs |
| // that are signaled for the SBs in a given tile in the coded domain. |
| // This function processes the vistor function fun() for all RUs within |
| // the Ru-tile in the order in which they are signaled in the bit-stream. |
| static void process_one_rutile(RestSearchCtxt *rsc, int tile_row, int tile_col, |
| int *processed, rest_unit_visitor_t fun) { |
| const int is_uv = rsc->plane > 0; |
| const int ss_y = is_uv && rsc->cm->seq_params.subsampling_y; |
| const RestorationInfo *rsi = &rsc->cm->rst_info[rsc->plane]; |
| const int ru_size = rsi->restoration_unit_size; |
| TileInfo tile_info; |
| av1_tile_set_row(&tile_info, rsc->cm, tile_row); |
| av1_tile_set_col(&tile_info, rsc->cm, tile_col); |
| assert(tile_info.mi_row_start < tile_info.mi_row_end); |
| assert(tile_info.mi_col_start < tile_info.mi_col_end); |
| |
| reset_rsc(rsc); |
| rsc_on_tile(rsc, *processed); |
| for (int mi_row = tile_info.mi_row_start; mi_row < tile_info.mi_row_end; |
| mi_row += rsc->cm->mib_size) { |
| for (int mi_col = tile_info.mi_col_start; mi_col < tile_info.mi_col_end; |
| mi_col += rsc->cm->mib_size) { |
| int rrow0, rrow1, rcol0, rcol1; |
| if (av1_loop_restoration_corners_in_sb(rsc->cm, rsc->plane, mi_row, |
| mi_col, rsc->cm->sb_size, &rcol0, |
| &rcol1, &rrow0, &rrow1)) { |
| // RU domain rectangle for the coded SB |
| AV1PixelRect ru_sb_rect = av1_get_rutile_rect( |
| rsc->cm, is_uv, rrow0, rrow1, rcol0, rcol1, ru_size, ru_size); |
| const int unit_idx0 = rrow0 * rsi->horz_units_per_tile + rcol0; |
| av1_foreach_rest_unit_in_sb(&ru_sb_rect, unit_idx0, rcol1 - rcol0, |
| rrow1 - rrow0, rsi->horz_units_per_tile, |
| ru_size, ss_y, rsc->plane, fun, rsc, |
| rsc->cm->rst_tmpbuf, NULL, processed); |
| } |
| } |
| } |
| } |
| |
| // Calls visitor function fun() for all RUs in frame in RUtile-by-RUtile order |
| static void process_by_rutile(RestSearchCtxt *rsc, rest_unit_visitor_t fun) { |
| int processed = 0; |
| for (int tile_row = 0; tile_row < rsc->cm->tiles.rows; tile_row++) { |
| for (int tile_col = 0; tile_col < rsc->cm->tiles.cols; tile_col++) { |
| process_one_rutile(rsc, tile_row, tile_col, &processed, fun); |
| } |
| } |
| } |
| |
| // Calls visitor function fun() for all RUs in frame in RUtile-by-RUtile order, |
| // aggregates the bits and sse returned in rsc for each RUtile, and returns |
| // the overall RD cost for the frame over all RUs in all RUtiles. |
| static double process_rd_by_rutile(RestSearchCtxt *rsc, |
| rest_unit_visitor_t fun) { |
| int processed = 0; |
| int64_t total_bits = 0; |
| int64_t total_sse = 0; |
| for (int tile_row = 0; tile_row < rsc->cm->tiles.rows; tile_row++) { |
| for (int tile_col = 0; tile_col < rsc->cm->tiles.cols; tile_col++) { |
| process_one_rutile(rsc, tile_row, tile_col, &processed, fun); |
| total_bits += rsc->bits; |
| total_sse += rsc->sse; |
| } |
| } |
| return RDCOST_DBL_WITH_NATIVE_BD_DIST(rsc->x->rdmult, total_bits >> 4, |
| total_sse, |
| rsc->cm->seq_params.bit_depth); |
| } |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| static void gather_stats_rest_type(RestSearchCtxt *rsc, RestorationType rtype) { |
| static const rest_unit_visitor_t funs[RESTORE_TYPES] = { |
| NULL, NULL, NULL, NULL, gather_stats_wienerns, NULL |
| }; |
| if (rtype == RESTORE_WIENER_NONSEP) aom_vector_clear(rsc->wienerns_stats); |
| |
| if (funs[rtype]) process_by_rutile(rsc, funs[rtype]); |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| static double search_rest_type(RestSearchCtxt *rsc, RestorationType rtype) { |
| static const rest_unit_visitor_t funs[RESTORE_TYPES] = { |
| search_norestore_visitor, |
| search_wiener_visitor, |
| search_sgrproj_visitor, |
| #if CONFIG_LR_IMPROVEMENTS |
| search_pc_wiener_visitor, |
| search_wienerns_visitor, |
| #endif // CONFIG_LR_IMPROVEMENTS |
| search_switchable_visitor |
| }; |
| |
| if (funs[rtype]) |
| return process_rd_by_rutile(rsc, funs[rtype]); |
| else |
| return DBL_MAX; |
| } |
| |
| static void copy_unit_info_visitor(const RestorationTileLimits *limits, |
| const AV1PixelRect *tile_rect, |
| int rest_unit_idx, int rest_unit_idx_seq, |
| void *priv, int32_t *tmpbuf, |
| RestorationLineBuffers *rlbs) { |
| (void)limits; |
| (void)tile_rect; |
| (void)rest_unit_idx_seq; |
| (void)tmpbuf; |
| (void)rlbs; |
| |
| RestSearchCtxt *rsc = (RestSearchCtxt *)priv; |
| const RestUnitSearchInfo *rusi = &rsc->rusi[rest_unit_idx]; |
| const RestorationInfo *rsi = &rsc->cm->rst_info[rsc->plane]; |
| |
| copy_unit_info(rsi->frame_restoration_type, rusi, |
| &rsi->unit_info[rest_unit_idx], rsc); |
| } |
| |
| static void finalize_frame_and_unit_info(RestorationType frame_rtype, |
| RestorationInfo *rsi, |
| RestSearchCtxt *rsc) { |
| rsi->frame_restoration_type = frame_rtype; |
| if (frame_rtype != RESTORE_NONE) { |
| process_by_rutile(rsc, copy_unit_info_visitor); |
| } |
| } |
| |
| static int rest_tiles_in_plane(const AV1_COMMON *cm, int plane) { |
| const RestorationInfo *rsi = &cm->rst_info[plane]; |
| return rsi->units_per_tile; |
| } |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| // Set the value of number of units, for a given unit size. |
| void av1_reset_restoration_struct(AV1_COMMON *cm, RestorationInfo *rsi, |
| int is_uv) { |
| const AV1PixelRect tile_rect = av1_whole_frame_rect(cm, is_uv); |
| const int max_tile_w = tile_rect.right - tile_rect.left; |
| const int max_tile_h = tile_rect.bottom - tile_rect.top; |
| |
| // To calculate hpertile and vpertile (horizontal and vertical units per |
| // tile), we basically want to divide the largest tile width or height by the |
| // size of a restoration unit. Rather than rounding up unconditionally as you |
| // might expect, we round to nearest, which models the way a right or bottom |
| // restoration unit can extend to up to 150% its normal width or height. The |
| // max with 1 is to deal with tiles that are smaller than half of a |
| // restoration unit. |
| const int unit_size = rsi->restoration_unit_size; |
| const int hpertile = av1_lr_count_units_in_tile(unit_size, max_tile_w); |
| const int vpertile = av1_lr_count_units_in_tile(unit_size, max_tile_h); |
| |
| rsi->units_per_tile = hpertile * vpertile; |
| rsi->horz_units_per_tile = hpertile; |
| rsi->vert_units_per_tile = vpertile; |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| void av1_pick_filter_restoration(const YV12_BUFFER_CONFIG *src, AV1_COMP *cpi) { |
| AV1_COMMON *const cm = &cpi->common; |
| MACROBLOCK *const x = &cpi->td.mb; |
| const int num_planes = av1_num_planes(cm); |
| assert(!cm->features.all_lossless); |
| |
| av1_fill_lr_rates(&x->mode_costs, x->e_mbd.tile_ctx); |
| |
| int ntiles[2]; |
| for (int is_uv = 0; is_uv < 2; ++is_uv) |
| ntiles[is_uv] = rest_tiles_in_plane(cm, is_uv); |
| |
| assert(ntiles[1] <= ntiles[0]); |
| RestUnitSearchInfo *rusi = |
| (RestUnitSearchInfo *)aom_memalign(16, sizeof(*rusi) * ntiles[0]); |
| |
| // If the restoration unit dimensions are not multiples of |
| // rsi->restoration_unit_size then some elements of the rusi array may be |
| // left uninitialised when we reach copy_unit_info(...). This is not a |
| // problem, as these elements are ignored later, but in order to quiet |
| // Valgrind's warnings we initialise the array below. |
| memset(rusi, 0, sizeof(*rusi) * ntiles[0]); |
| x->rdmult = cpi->rd.RDMULT; |
| |
| #if CONFIG_LR_MERGE_COEFFS |
| Vector unit_stack; |
| aom_vector_setup(&unit_stack, |
| 1, // resizable capacity |
| sizeof(struct RstUnitSnapshot)); // element size |
| Vector unit_indices; |
| aom_vector_setup(&unit_indices, |
| 1, // resizable capacity |
| sizeof(int)); // element size |
| #endif // CONFIG_LR_MERGE_COEFFS |
| |
| RestSearchCtxt rsc; |
| const int plane_start = AOM_PLANE_Y; |
| const int plane_end = num_planes > 1 ? AOM_PLANE_V : AOM_PLANE_Y; |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| Vector wienerns_stats; |
| aom_vector_setup(&wienerns_stats, |
| 1, // resizable capacity |
| sizeof(struct RstUnitStats)); // element size |
| rsc.wienerns_stats = &wienerns_stats; |
| uint16_t *luma = NULL; |
| uint16_t *luma_buf; |
| const YV12_BUFFER_CONFIG *dgd = &cpi->common.cur_frame->buf; |
| rsc.luma_stride = dgd->crop_widths[1] + 2 * WIENERNS_UV_BRD; |
| luma_buf = wienerns_copy_luma_highbd( |
| dgd->buffers[AOM_PLANE_Y], dgd->crop_heights[AOM_PLANE_Y], |
| dgd->crop_widths[AOM_PLANE_Y], dgd->strides[AOM_PLANE_Y], &luma, |
| dgd->crop_heights[1], dgd->crop_widths[1], WIENERNS_UV_BRD, |
| rsc.luma_stride, cm->seq_params.bit_depth |
| #if WIENERNS_CROSS_FILT_LUMA_TYPE == 2 |
| , |
| #if CONFIG_IMPROVED_DS_CC_WIENER |
| cm->seq_params.enable_cfl_ds_filter |
| #else |
| cm->seq_params.enable_cfl_ds_filter == 1 |
| #endif // CONFIG_IMPROVED_DS_CC_WIENER |
| #endif |
| ); |
| assert(luma_buf != NULL); |
| rsc.luma = luma; |
| |
| rsc.wienerns_tmpbuf = |
| (double *)aom_malloc(WIENERNS_TMPBUF_SIZE * sizeof(*rsc.wienerns_tmpbuf)); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| for (int plane = plane_start; plane <= plane_end; ++plane) { |
| init_rsc(src, &cpi->common, x, &cpi->sf.lpf_sf, plane, rusi, |
| #if CONFIG_LR_MERGE_COEFFS |
| &unit_stack, &unit_indices, |
| #endif // CONFIG_LR_MERGE_COEFFS |
| &cpi->trial_frame_rst, &rsc); |
| |
| const int plane_ntiles = ntiles[plane > 0]; |
| const RestorationType num_rtypes = |
| (plane_ntiles > 1) ? RESTORE_TYPES : RESTORE_SWITCHABLE_TYPES; |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| double best_cost = DBL_MAX; |
| #else |
| double best_cost = 0; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| RestorationType best_rtype = RESTORE_NONE; |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| RestorationInfo *rsi = &cm->rst_info[plane]; |
| const int max_unit_size = rsi->max_restoration_unit_size; |
| const int min_unit_size = rsi->min_restoration_unit_size; |
| |
| int best_unit_size = min_unit_size; |
| |
| for (int unit_size = min_unit_size; unit_size <= max_unit_size; |
| unit_size <<= 1) { |
| if (plane == 2 && unit_size != cm->rst_info[1].restoration_unit_size) { |
| continue; |
| } |
| aom_vector_clear(&wienerns_stats); |
| |
| rsi->restoration_unit_size = unit_size; |
| |
| av1_reset_restoration_struct(cm, rsi, plane > 0); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| if (!cpi->sf.lpf_sf.disable_loop_restoration_chroma || !plane) { |
| av1_extend_frame(rsc.dgd_buffer, rsc.plane_width, rsc.plane_height, |
| rsc.dgd_stride, RESTORATION_BORDER, |
| RESTORATION_BORDER); |
| |
| for (RestorationType r = 0; r < num_rtypes; ++r) { |
| #if CONFIG_LR_IMPROVEMENTS |
| if (cpi->common.features.lr_tools_disable_mask[plane > 0] & (1 << r)) |
| continue; |
| if (plane != AOM_PLANE_Y && r == RESTORE_PC_WIENER) continue; |
| |
| gather_stats_rest_type(&rsc, r); |
| |
| if (r == RESTORE_WIENER_NONSEP) { |
| rsc.num_filter_classes = rsc.plane == AOM_PLANE_Y |
| ? NUM_WIENERNS_CLASS_INIT_LUMA |
| : NUM_WIENERNS_CLASS_INIT_CHROMA; |
| } |
| #else |
| const ToolCfg *const tool_cfg = &cpi->oxcf.tool_cfg; |
| switch (r) { |
| case RESTORE_WIENER: |
| if (!tool_cfg->enable_wiener) continue; |
| break; |
| case RESTORE_SGRPROJ: |
| if (!tool_cfg->enable_sgrproj) continue; |
| break; |
| default: break; |
| }; |
| #endif // CONFIG_LR_IMPROVEMENTS |
| |
| double cost = search_rest_type(&rsc, r); |
| |
| #if CONFIG_LR_IMPROVEMENTS |
| if (cost < best_cost) { |
| best_cost = cost; |
| best_rtype = r; |
| best_unit_size = unit_size; |
| } |
| #else |
| if (r == 0 || cost < best_cost) { |
| best_cost = cost; |
| best_rtype = r; |
| } |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| } |
| #if CONFIG_LR_IMPROVEMENTS |
| if (rsi->restoration_unit_size == min_unit_size || |
| best_unit_size == rsi->restoration_unit_size) { |
| #endif // CONFIG_LR_IMPROVEMENTS |
| finalize_frame_and_unit_info(best_rtype, &cm->rst_info[plane], &rsc); |
| #if CONFIG_LR_IMPROVEMENTS |
| } |
| } |
| assert(IMPLIES( |
| cm->features.lr_tools_count[plane] < 2, |
| cm->rst_info[plane].frame_restoration_type != RESTORE_SWITCHABLE)); |
| rsi->restoration_unit_size = best_unit_size; |
| av1_reset_restoration_struct(cm, rsi, plane > 0); |
| int ru_num = rest_tiles_in_plane(cm, plane > 0); |
| adjust_frame_rtype(&cm->rst_info[plane], ru_num, &rsc, &cpi->oxcf.tool_cfg); |
| #else |
| adjust_frame_rtype(&cm->rst_info[plane], plane_ntiles, &rsc, |
| &cpi->oxcf.tool_cfg); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| } |
| |
| aom_free(rusi); |
| #if CONFIG_LR_IMPROVEMENTS |
| free(luma_buf); |
| aom_free(rsc.wienerns_tmpbuf); |
| aom_vector_destroy(&wienerns_stats); |
| #endif // CONFIG_LR_IMPROVEMENTS |
| #if CONFIG_LR_MERGE_COEFFS |
| aom_vector_destroy(&unit_stack); |
| aom_vector_destroy(&unit_indices); |
| #endif // CONFIG_LR_MERGE_COEFFS |
| } |