| /* |
| * HEVC video decoder |
| * |
| * Copyright (C) 2012 - 2013 Guillaume Martres |
| * Copyright (C) 2013 Seppo Tomperi |
| * Copyright (C) 2013 Wassim Hamidouche |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/common.h" |
| #include "libavutil/internal.h" |
| |
| #include "cabac_functions.h" |
| #include "golomb.h" |
| #include "hevc.h" |
| |
| #include "bit_depth_template.c" |
| |
| #define LUMA 0 |
| #define CB 1 |
| #define CR 2 |
| |
| static const uint8_t tctable[54] = { |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // QP 0...18 |
| 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, // QP 19...37 |
| 5, 5, 6, 6, 7, 8, 9, 10, 11, 13, 14, 16, 18, 20, 22, 24 // QP 38...53 |
| }; |
| |
| static const uint8_t betatable[52] = { |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 8, // QP 0...18 |
| 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, // QP 19...37 |
| 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64 // QP 38...51 |
| }; |
| |
| static int chroma_tc(HEVCContext *s, int qp_y, int c_idx, int tc_offset) |
| { |
| static const int qp_c[] = { |
| 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37 |
| }; |
| int qp, qp_i, offset, idxt; |
| |
| // slice qp offset is not used for deblocking |
| if (c_idx == 1) |
| offset = s->pps->cb_qp_offset; |
| else |
| offset = s->pps->cr_qp_offset; |
| |
| qp_i = av_clip_c(qp_y + offset, 0, 57); |
| if (qp_i < 30) |
| qp = qp_i; |
| else if (qp_i > 43) |
| qp = qp_i - 6; |
| else |
| qp = qp_c[qp_i - 30]; |
| |
| idxt = av_clip_c(qp + DEFAULT_INTRA_TC_OFFSET + tc_offset, 0, 53); |
| return tctable[idxt]; |
| } |
| |
| static int get_qPy_pred(HEVCContext *s, int xC, int yC, |
| int xBase, int yBase, int log2_cb_size) |
| { |
| HEVCLocalContext *lc = s->HEVClc; |
| int ctb_size_mask = (1 << s->sps->log2_ctb_size) - 1; |
| int MinCuQpDeltaSizeMask = (1 << (s->sps->log2_ctb_size - |
| s->pps->diff_cu_qp_delta_depth)) - 1; |
| int xQgBase = xBase - (xBase & MinCuQpDeltaSizeMask); |
| int yQgBase = yBase - (yBase & MinCuQpDeltaSizeMask); |
| int min_cb_width = s->sps->min_cb_width; |
| int x_cb = xQgBase >> s->sps->log2_min_cb_size; |
| int y_cb = yQgBase >> s->sps->log2_min_cb_size; |
| int availableA = (xBase & ctb_size_mask) && |
| (xQgBase & ctb_size_mask); |
| int availableB = (yBase & ctb_size_mask) && |
| (yQgBase & ctb_size_mask); |
| int qPy_pred, qPy_a, qPy_b; |
| |
| // qPy_pred |
| if (lc->first_qp_group || (!xQgBase && !yQgBase)) { |
| lc->first_qp_group = !lc->tu.is_cu_qp_delta_coded; |
| qPy_pred = s->sh.slice_qp; |
| } else { |
| qPy_pred = lc->qPy_pred; |
| } |
| |
| // qPy_a |
| if (availableA == 0) |
| qPy_a = qPy_pred; |
| else |
| qPy_a = s->qp_y_tab[(x_cb - 1) + y_cb * min_cb_width]; |
| |
| // qPy_b |
| if (availableB == 0) |
| qPy_b = qPy_pred; |
| else |
| qPy_b = s->qp_y_tab[x_cb + (y_cb - 1) * min_cb_width]; |
| |
| av_assert2(qPy_a >= -s->sps->qp_bd_offset && qPy_a < 52); |
| av_assert2(qPy_b >= -s->sps->qp_bd_offset && qPy_b < 52); |
| |
| return (qPy_a + qPy_b + 1) >> 1; |
| } |
| |
| void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC, |
| int xBase, int yBase, int log2_cb_size) |
| { |
| int qp_y = get_qPy_pred(s, xC, yC, xBase, yBase, log2_cb_size); |
| |
| if (s->HEVClc->tu.cu_qp_delta != 0) { |
| int off = s->sps->qp_bd_offset; |
| s->HEVClc->qp_y = FFUMOD(qp_y + s->HEVClc->tu.cu_qp_delta + 52 + 2 * off, |
| 52 + off) - off; |
| } else |
| s->HEVClc->qp_y = qp_y; |
| } |
| |
| static int get_qPy(HEVCContext *s, int xC, int yC) |
| { |
| int log2_min_cb_size = s->sps->log2_min_cb_size; |
| int x = xC >> log2_min_cb_size; |
| int y = yC >> log2_min_cb_size; |
| return s->qp_y_tab[x + y * s->sps->min_cb_width]; |
| } |
| |
| static void copy_CTB(uint8_t *dst, uint8_t *src, |
| int width, int height, int stride) |
| { |
| int i; |
| |
| for (i = 0; i < height; i++) { |
| memcpy(dst, src, width); |
| dst += stride; |
| src += stride; |
| } |
| } |
| |
| #define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)]) |
| |
| static void sao_filter_CTB(HEVCContext *s, int x, int y) |
| { |
| // TODO: This should be easily parallelizable |
| // TODO: skip CBs when (cu_transquant_bypass_flag || (pcm_loop_filter_disable_flag && pcm_flag)) |
| int c_idx = 0; |
| int class = 1, class_index; |
| int edges[4]; // 0 left 1 top 2 right 3 bottom |
| SAOParams *sao[4]; |
| int classes[4]; |
| int x_shift = 0, y_shift = 0; |
| int x_ctb = x >> s->sps->log2_ctb_size; |
| int y_ctb = y >> s->sps->log2_ctb_size; |
| int ctb_addr_rs = y_ctb * s->sps->ctb_width + x_ctb; |
| int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[ctb_addr_rs]; |
| |
| // flags indicating unfilterable edges |
| uint8_t vert_edge[] = { 0, 0, 0, 0 }; |
| uint8_t horiz_edge[] = { 0, 0, 0, 0 }; |
| uint8_t diag_edge[] = { 0, 0, 0, 0 }; |
| uint8_t lfase[3]; // current, above, left |
| uint8_t no_tile_filter = s->pps->tiles_enabled_flag && |
| !s->pps->loop_filter_across_tiles_enabled_flag; |
| uint8_t left_tile_edge = 0; |
| uint8_t up_tile_edge = 0; |
| |
| sao[0] = &CTB(s->sao, x_ctb, y_ctb); |
| edges[0] = x_ctb == 0; |
| edges[1] = y_ctb == 0; |
| edges[2] = x_ctb == s->sps->ctb_width - 1; |
| edges[3] = y_ctb == s->sps->ctb_height - 1; |
| lfase[0] = CTB(s->filter_slice_edges, x_ctb, y_ctb); |
| classes[0] = 0; |
| |
| if (!edges[0]) { |
| left_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]]; |
| sao[class] = &CTB(s->sao, x_ctb - 1, y_ctb); |
| vert_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb)) || left_tile_edge; |
| vert_edge[2] = vert_edge[0]; |
| lfase[2] = CTB(s->filter_slice_edges, x_ctb - 1, y_ctb); |
| classes[class] = 2; |
| class++; |
| x_shift = 8; |
| } |
| |
| if (!edges[1]) { |
| up_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]]; |
| sao[class] = &CTB(s->sao, x_ctb, y_ctb - 1); |
| horiz_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) || up_tile_edge; |
| horiz_edge[1] = horiz_edge[0]; |
| lfase[1] = CTB(s->filter_slice_edges, x_ctb, y_ctb - 1); |
| classes[class] = 1; |
| class++; |
| y_shift = 4; |
| |
| if (!edges[0]) { |
| classes[class] = 3; |
| sao[class] = &CTB(s->sao, x_ctb - 1, y_ctb - 1); |
| class++; |
| |
| // Tile check here is done current CTB row/col, not above/left like you'd expect, |
| //but that is because the tile boundary always extends through the whole pic |
| vert_edge[1] = (!lfase[1] && CTB(s->tab_slice_address, x_ctb, y_ctb - 1) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || left_tile_edge; |
| vert_edge[3] = vert_edge[1]; |
| horiz_edge[2] = (!lfase[2] && CTB(s->tab_slice_address, x_ctb - 1, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || up_tile_edge; |
| horiz_edge[3] = horiz_edge[2]; |
| diag_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || left_tile_edge || up_tile_edge; |
| diag_edge[3] = diag_edge[0]; |
| |
| // Does left CTB comes after above CTB? |
| if (CTB(s->tab_slice_address, x_ctb - 1, y_ctb) > |
| CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) { |
| diag_edge[2] = !lfase[2] || left_tile_edge || up_tile_edge; |
| diag_edge[1] = diag_edge[2]; |
| } else if (CTB(s->tab_slice_address, x_ctb - 1, y_ctb) < |
| CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) { |
| diag_edge[1] = !lfase[1] || left_tile_edge || up_tile_edge; |
| diag_edge[2] = diag_edge[1]; |
| } else { |
| // Same slice, only consider tiles |
| diag_edge[2] = left_tile_edge || up_tile_edge; |
| diag_edge[1] = diag_edge[2]; |
| } |
| } |
| } |
| |
| for (c_idx = 0; c_idx < 3; c_idx++) { |
| int chroma = c_idx ? 1 : 0; |
| int x0 = x >> chroma; |
| int y0 = y >> chroma; |
| int stride = s->frame->linesize[c_idx]; |
| int ctb_size = (1 << (s->sps->log2_ctb_size)) >> s->sps->hshift[c_idx]; |
| int width = FFMIN(ctb_size, |
| (s->sps->width >> s->sps->hshift[c_idx]) - x0); |
| int height = FFMIN(ctb_size, |
| (s->sps->height >> s->sps->vshift[c_idx]) - y0); |
| |
| uint8_t *src = &s->frame->data[c_idx][y0 * stride + (x0 << s->sps->pixel_shift)]; |
| uint8_t *dst = &s->sao_frame->data[c_idx][y0 * stride + (x0 << s->sps->pixel_shift)]; |
| int offset = (y_shift >> chroma) * stride + ((x_shift >> chroma) << s->sps->pixel_shift); |
| |
| copy_CTB(dst - offset, src - offset, |
| (edges[2] ? width + (x_shift >> chroma) : width) << s->sps->pixel_shift, |
| (edges[3] ? height + (y_shift >> chroma) : height), stride); |
| |
| for (class_index = 0; class_index < class; class_index++) { |
| |
| switch (sao[class_index]->type_idx[c_idx]) { |
| case SAO_BAND: |
| s->hevcdsp.sao_band_filter[classes[class_index]](dst, src, |
| stride, |
| sao[class_index], |
| edges, width, |
| height, c_idx); |
| break; |
| case SAO_EDGE: |
| s->hevcdsp.sao_edge_filter[classes[class_index]](dst, src, |
| stride, |
| sao[class_index], |
| edges, width, |
| height, c_idx, |
| vert_edge[classes[class_index]], |
| horiz_edge[classes[class_index]], |
| diag_edge[classes[class_index]]); |
| break; |
| } |
| } |
| } |
| } |
| |
| static int get_pcm(HEVCContext *s, int x, int y) |
| { |
| int log2_min_pu_size = s->sps->log2_min_pu_size; |
| int x_pu, y_pu; |
| |
| if (x < 0 || y < 0) |
| return 2; |
| |
| x_pu = x >> log2_min_pu_size; |
| y_pu = y >> log2_min_pu_size; |
| |
| if (x_pu >= s->sps->min_pu_width || y_pu >= s->sps->min_pu_height) |
| return 2; |
| return s->is_pcm[y_pu * s->sps->min_pu_width + x_pu]; |
| } |
| |
| #define TC_CALC(qp, bs) \ |
| tctable[av_clip((qp) + DEFAULT_INTRA_TC_OFFSET * ((bs) - 1) + \ |
| (tc_offset >> 1 << 1), \ |
| 0, MAX_QP + DEFAULT_INTRA_TC_OFFSET)] |
| |
| static void deblocking_filter_CTB(HEVCContext *s, int x0, int y0) |
| { |
| uint8_t *src; |
| int x, y; |
| int chroma; |
| int c_tc[2], beta[2], tc[2]; |
| uint8_t no_p[2] = { 0 }; |
| uint8_t no_q[2] = { 0 }; |
| |
| int log2_ctb_size = s->sps->log2_ctb_size; |
| int x_end, y_end; |
| int ctb_size = 1 << log2_ctb_size; |
| int ctb = (x0 >> log2_ctb_size) + |
| (y0 >> log2_ctb_size) * s->sps->ctb_width; |
| int cur_tc_offset = s->deblock[ctb].tc_offset; |
| int cur_beta_offset = s->deblock[ctb].beta_offset; |
| int left_tc_offset, left_beta_offset; |
| int tc_offset, beta_offset; |
| int pcmf = (s->sps->pcm_enabled_flag && |
| s->sps->pcm.loop_filter_disable_flag) || |
| s->pps->transquant_bypass_enable_flag; |
| |
| if (x0) { |
| left_tc_offset = s->deblock[ctb - 1].tc_offset; |
| left_beta_offset = s->deblock[ctb - 1].beta_offset; |
| } |
| |
| x_end = x0 + ctb_size; |
| if (x_end > s->sps->width) |
| x_end = s->sps->width; |
| y_end = y0 + ctb_size; |
| if (y_end > s->sps->height) |
| y_end = s->sps->height; |
| |
| tc_offset = cur_tc_offset; |
| beta_offset = cur_beta_offset; |
| |
| // vertical filtering luma |
| for (y = y0; y < y_end; y += 8) { |
| for (x = x0 ? x0 : 8; x < x_end; x += 8) { |
| const int bs0 = s->vertical_bs[(x >> 3) + (y >> 2) * s->bs_width]; |
| const int bs1 = s->vertical_bs[(x >> 3) + ((y + 4) >> 2) * s->bs_width]; |
| if (bs0 || bs1) { |
| const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1; |
| const int qp1 = (get_qPy(s, x - 1, y + 4) + get_qPy(s, x, y + 4) + 1) >> 1; |
| |
| beta[0] = betatable[av_clip(qp0 + beta_offset, 0, MAX_QP)]; |
| beta[1] = betatable[av_clip(qp1 + beta_offset, 0, MAX_QP)]; |
| tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0; |
| tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0; |
| src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x - 1, y); |
| no_p[1] = get_pcm(s, x - 1, y + 4); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x, y + 4); |
| s->hevcdsp.hevc_v_loop_filter_luma_c(src, |
| s->frame->linesize[LUMA], |
| beta, tc, no_p, no_q); |
| } else |
| s->hevcdsp.hevc_v_loop_filter_luma(src, |
| s->frame->linesize[LUMA], |
| beta, tc, no_p, no_q); |
| } |
| } |
| } |
| |
| // vertical filtering chroma |
| for (chroma = 1; chroma <= 2; chroma++) { |
| for (y = y0; y < y_end; y += 16) { |
| for (x = x0 ? x0 : 16; x < x_end; x += 16) { |
| const int bs0 = s->vertical_bs[(x >> 3) + (y >> 2) * s->bs_width]; |
| const int bs1 = s->vertical_bs[(x >> 3) + ((y + 8) >> 2) * s->bs_width]; |
| if ((bs0 == 2) || (bs1 == 2)) { |
| const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1; |
| const int qp1 = (get_qPy(s, x - 1, y + 8) + get_qPy(s, x, y + 8) + 1) >> 1; |
| |
| c_tc[0] = (bs0 == 2) ? chroma_tc(s, qp0, chroma, tc_offset) : 0; |
| c_tc[1] = (bs1 == 2) ? chroma_tc(s, qp1, chroma, tc_offset) : 0; |
| src = &s->frame->data[chroma][y / 2 * s->frame->linesize[chroma] + ((x / 2) << s->sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x - 1, y); |
| no_p[1] = get_pcm(s, x - 1, y + 8); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x, y + 8); |
| s->hevcdsp.hevc_v_loop_filter_chroma_c(src, |
| s->frame->linesize[chroma], |
| c_tc, no_p, no_q); |
| } else |
| s->hevcdsp.hevc_v_loop_filter_chroma(src, |
| s->frame->linesize[chroma], |
| c_tc, no_p, no_q); |
| } |
| } |
| } |
| } |
| |
| // horizontal filtering luma |
| if (x_end != s->sps->width) |
| x_end -= 8; |
| for (y = y0 ? y0 : 8; y < y_end; y += 8) { |
| for (x = x0 ? x0 - 8 : 0; x < x_end; x += 8) { |
| const int bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2]; |
| const int bs1 = s->horizontal_bs[(x + 4 + y * s->bs_width) >> 2]; |
| if (bs0 || bs1) { |
| const int qp0 = (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1; |
| const int qp1 = (get_qPy(s, x + 4, y - 1) + get_qPy(s, x + 4, y) + 1) >> 1; |
| |
| tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset; |
| beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset; |
| |
| beta[0] = betatable[av_clip(qp0 + beta_offset, 0, MAX_QP)]; |
| beta[1] = betatable[av_clip(qp1 + beta_offset, 0, MAX_QP)]; |
| tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0; |
| tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0; |
| src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x, y - 1); |
| no_p[1] = get_pcm(s, x + 4, y - 1); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x + 4, y); |
| s->hevcdsp.hevc_h_loop_filter_luma_c(src, |
| s->frame->linesize[LUMA], |
| beta, tc, no_p, no_q); |
| } else |
| s->hevcdsp.hevc_h_loop_filter_luma(src, |
| s->frame->linesize[LUMA], |
| beta, tc, no_p, no_q); |
| } |
| } |
| } |
| |
| // horizontal filtering chroma |
| for (chroma = 1; chroma <= 2; chroma++) { |
| for (y = y0 ? y0 : 16; y < y_end; y += 16) { |
| for (x = x0 - 8; x < x_end; x += 16) { |
| int bs0, bs1; |
| // to make sure no memory access over boundary when x = -8 |
| // TODO: simplify with row based deblocking |
| if (x < 0) { |
| bs0 = 0; |
| bs1 = s->horizontal_bs[(x + 8 + y * s->bs_width) >> 2]; |
| } else if (x >= x_end - 8) { |
| bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2]; |
| bs1 = 0; |
| } else { |
| bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2]; |
| bs1 = s->horizontal_bs[(x + 8 + y * s->bs_width) >> 2]; |
| } |
| |
| if ((bs0 == 2) || (bs1 == 2)) { |
| const int qp0 = bs0 == 2 ? (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1 : 0; |
| const int qp1 = bs1 == 2 ? (get_qPy(s, x + 8, y - 1) + get_qPy(s, x + 8, y) + 1) >> 1 : 0; |
| |
| tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset; |
| c_tc[0] = bs0 == 2 ? chroma_tc(s, qp0, chroma, tc_offset) : 0; |
| c_tc[1] = bs1 == 2 ? chroma_tc(s, qp1, chroma, cur_tc_offset) : 0; |
| src = &s->frame->data[chroma][y / 2 * s->frame->linesize[chroma] + ((x / 2) << s->sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x, y - 1); |
| no_p[1] = get_pcm(s, x + 8, y - 1); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x + 8, y); |
| s->hevcdsp.hevc_h_loop_filter_chroma_c(src, |
| s->frame->linesize[chroma], |
| c_tc, no_p, no_q); |
| } else |
| s->hevcdsp.hevc_h_loop_filter_chroma(src, |
| s->frame->linesize[chroma], |
| c_tc, no_p, no_q); |
| } |
| } |
| } |
| } |
| } |
| |
| static int boundary_strength(HEVCContext *s, MvField *curr, |
| uint8_t curr_cbf_luma, MvField *neigh, |
| uint8_t neigh_cbf_luma, |
| RefPicList *neigh_refPicList, |
| int tu_border) |
| { |
| int mvs = curr->pred_flag[0] + curr->pred_flag[1]; |
| |
| if (tu_border) { |
| if (curr->is_intra || neigh->is_intra) |
| return 2; |
| if (curr_cbf_luma || neigh_cbf_luma) |
| return 1; |
| } |
| |
| if (mvs == neigh->pred_flag[0] + neigh->pred_flag[1]) { |
| if (mvs == 2) { |
| // same L0 and L1 |
| if (s->ref->refPicList[0].list[curr->ref_idx[0]] == neigh_refPicList[0].list[neigh->ref_idx[0]] && |
| s->ref->refPicList[0].list[curr->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]] && |
| neigh_refPicList[0].list[neigh->ref_idx[0]] == neigh_refPicList[1].list[neigh->ref_idx[1]]) { |
| if ((abs(neigh->mv[0].x - curr->mv[0].x) >= 4 || abs(neigh->mv[0].y - curr->mv[0].y) >= 4 || |
| abs(neigh->mv[1].x - curr->mv[1].x) >= 4 || abs(neigh->mv[1].y - curr->mv[1].y) >= 4) && |
| (abs(neigh->mv[1].x - curr->mv[0].x) >= 4 || abs(neigh->mv[1].y - curr->mv[0].y) >= 4 || |
| abs(neigh->mv[0].x - curr->mv[1].x) >= 4 || abs(neigh->mv[0].y - curr->mv[1].y) >= 4)) |
| return 1; |
| else |
| return 0; |
| } else if (neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[0].list[curr->ref_idx[0]] && |
| neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) { |
| if (abs(neigh->mv[0].x - curr->mv[0].x) >= 4 || abs(neigh->mv[0].y - curr->mv[0].y) >= 4 || |
| abs(neigh->mv[1].x - curr->mv[1].x) >= 4 || abs(neigh->mv[1].y - curr->mv[1].y) >= 4) |
| return 1; |
| else |
| return 0; |
| } else if (neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[0].list[curr->ref_idx[0]] && |
| neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) { |
| if (abs(neigh->mv[1].x - curr->mv[0].x) >= 4 || abs(neigh->mv[1].y - curr->mv[0].y) >= 4 || |
| abs(neigh->mv[0].x - curr->mv[1].x) >= 4 || abs(neigh->mv[0].y - curr->mv[1].y) >= 4) |
| return 1; |
| else |
| return 0; |
| } else { |
| return 1; |
| } |
| } else { // 1 MV |
| Mv A, B; |
| int ref_A, ref_B; |
| |
| if (curr->pred_flag[0]) { |
| A = curr->mv[0]; |
| ref_A = s->ref->refPicList[0].list[curr->ref_idx[0]]; |
| } else { |
| A = curr->mv[1]; |
| ref_A = s->ref->refPicList[1].list[curr->ref_idx[1]]; |
| } |
| |
| if (neigh->pred_flag[0]) { |
| B = neigh->mv[0]; |
| ref_B = neigh_refPicList[0].list[neigh->ref_idx[0]]; |
| } else { |
| B = neigh->mv[1]; |
| ref_B = neigh_refPicList[1].list[neigh->ref_idx[1]]; |
| } |
| |
| if (ref_A == ref_B) { |
| if (abs(A.x - B.x) >= 4 || abs(A.y - B.y) >= 4) |
| return 1; |
| else |
| return 0; |
| } else |
| return 1; |
| } |
| } |
| |
| return 1; |
| } |
| |
| void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0, |
| int log2_trafo_size, |
| int slice_or_tiles_up_boundary, |
| int slice_or_tiles_left_boundary) |
| { |
| MvField *tab_mvf = s->ref->tab_mvf; |
| int log2_min_pu_size = s->sps->log2_min_pu_size; |
| int log2_min_tu_size = s->sps->log2_min_tb_size; |
| int min_pu_width = s->sps->min_pu_width; |
| int min_tu_width = s->sps->min_tb_width; |
| int is_intra = tab_mvf[(y0 >> log2_min_pu_size) * min_pu_width + |
| (x0 >> log2_min_pu_size)].is_intra; |
| int i, j, bs; |
| |
| if (y0 > 0 && (y0 & 7) == 0) { |
| int yp_pu = (y0 - 1) >> log2_min_pu_size; |
| int yq_pu = y0 >> log2_min_pu_size; |
| int yp_tu = (y0 - 1) >> log2_min_tu_size; |
| int yq_tu = y0 >> log2_min_tu_size; |
| |
| for (i = 0; i < (1 << log2_trafo_size); i += 4) { |
| int x_pu = (x0 + i) >> log2_min_pu_size; |
| int x_tu = (x0 + i) >> log2_min_tu_size; |
| MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu]; |
| MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu]; |
| uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu]; |
| uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu]; |
| RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref, |
| x0 + i, y0 - 1); |
| |
| bs = boundary_strength(s, curr, curr_cbf_luma, |
| top, top_cbf_luma, top_refPicList, 1); |
| if (!s->sh.slice_loop_filter_across_slices_enabled_flag && |
| (slice_or_tiles_up_boundary & 1) && |
| (y0 % (1 << s->sps->log2_ctb_size)) == 0) |
| bs = 0; |
| else if (!s->pps->loop_filter_across_tiles_enabled_flag && |
| (slice_or_tiles_up_boundary & 2) && |
| (y0 % (1 << s->sps->log2_ctb_size)) == 0) |
| bs = 0; |
| if (y0 == 0 || s->sh.disable_deblocking_filter_flag == 1) |
| bs = 0; |
| if (bs) |
| s->horizontal_bs[((x0 + i) + y0 * s->bs_width) >> 2] = bs; |
| } |
| } |
| |
| // bs for TU internal horizontal PU boundaries |
| if (log2_trafo_size > s->sps->log2_min_pu_size && !is_intra) |
| for (j = 8; j < (1 << log2_trafo_size); j += 8) { |
| int yp_pu = (y0 + j - 1) >> log2_min_pu_size; |
| int yq_pu = (y0 + j) >> log2_min_pu_size; |
| int yp_tu = (y0 + j - 1) >> log2_min_tu_size; |
| int yq_tu = (y0 + j) >> log2_min_tu_size; |
| |
| for (i = 0; i < (1 << log2_trafo_size); i += 4) { |
| int x_pu = (x0 + i) >> log2_min_pu_size; |
| int x_tu = (x0 + i) >> log2_min_tu_size; |
| MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu]; |
| MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu]; |
| uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu]; |
| uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu]; |
| RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref, |
| x0 + i, |
| y0 + j - 1); |
| |
| bs = boundary_strength(s, curr, curr_cbf_luma, |
| top, top_cbf_luma, top_refPicList, 0); |
| if (s->sh.disable_deblocking_filter_flag == 1) |
| bs = 0; |
| if (bs) |
| s->horizontal_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs; |
| } |
| } |
| |
| // bs for vertical TU boundaries |
| if (x0 > 0 && (x0 & 7) == 0) { |
| int xp_pu = (x0 - 1) >> log2_min_pu_size; |
| int xq_pu = x0 >> log2_min_pu_size; |
| int xp_tu = (x0 - 1) >> log2_min_tu_size; |
| int xq_tu = x0 >> log2_min_tu_size; |
| |
| for (i = 0; i < (1 << log2_trafo_size); i += 4) { |
| int y_pu = (y0 + i) >> log2_min_pu_size; |
| int y_tu = (y0 + i) >> log2_min_tu_size; |
| MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu]; |
| MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu]; |
| |
| uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu]; |
| uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu]; |
| RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref, |
| x0 - 1, y0 + i); |
| |
| bs = boundary_strength(s, curr, curr_cbf_luma, |
| left, left_cbf_luma, left_refPicList, 1); |
| if (!s->sh.slice_loop_filter_across_slices_enabled_flag && |
| (slice_or_tiles_left_boundary & 1) && |
| (x0 % (1 << s->sps->log2_ctb_size)) == 0) |
| bs = 0; |
| else if (!s->pps->loop_filter_across_tiles_enabled_flag && |
| (slice_or_tiles_left_boundary & 2) && |
| (x0 % (1 << s->sps->log2_ctb_size)) == 0) |
| bs = 0; |
| if (x0 == 0 || s->sh.disable_deblocking_filter_flag == 1) |
| bs = 0; |
| if (bs) |
| s->vertical_bs[(x0 >> 3) + ((y0 + i) >> 2) * s->bs_width] = bs; |
| } |
| } |
| |
| // bs for TU internal vertical PU boundaries |
| if (log2_trafo_size > log2_min_pu_size && !is_intra) |
| for (j = 0; j < (1 << log2_trafo_size); j += 4) { |
| int y_pu = (y0 + j) >> log2_min_pu_size; |
| int y_tu = (y0 + j) >> log2_min_tu_size; |
| |
| for (i = 8; i < (1 << log2_trafo_size); i += 8) { |
| int xp_pu = (x0 + i - 1) >> log2_min_pu_size; |
| int xq_pu = (x0 + i) >> log2_min_pu_size; |
| int xp_tu = (x0 + i - 1) >> log2_min_tu_size; |
| int xq_tu = (x0 + i) >> log2_min_tu_size; |
| MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu]; |
| MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu]; |
| uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu]; |
| uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu]; |
| RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref, |
| x0 + i - 1, |
| y0 + j); |
| |
| bs = boundary_strength(s, curr, curr_cbf_luma, |
| left, left_cbf_luma, left_refPicList, 0); |
| if (s->sh.disable_deblocking_filter_flag == 1) |
| bs = 0; |
| if (bs) |
| s->vertical_bs[((x0 + i) >> 3) + ((y0 + j) >> 2) * s->bs_width] = bs; |
| } |
| } |
| } |
| |
| #undef LUMA |
| #undef CB |
| #undef CR |
| |
| void ff_hevc_hls_filter(HEVCContext *s, int x, int y) |
| { |
| deblocking_filter_CTB(s, x, y); |
| if (s->sps->sao_enabled) |
| sao_filter_CTB(s, x, y); |
| } |
| |
| void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size) |
| { |
| if (y_ctb && x_ctb) |
| ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb - ctb_size); |
| if (y_ctb && x_ctb >= s->sps->width - ctb_size) { |
| ff_hevc_hls_filter(s, x_ctb, y_ctb - ctb_size); |
| if (s->threads_type == FF_THREAD_FRAME ) |
| ff_thread_report_progress(&s->ref->tf, y_ctb - ctb_size, 0); |
| } |
| if (x_ctb && y_ctb >= s->sps->height - ctb_size) |
| ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb); |
| } |
