| /* |
| * 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->ps.pps->cb_qp_offset; |
| else |
| offset = s->ps.pps->cr_qp_offset; |
| |
| qp_i = av_clip(qp_y + offset, 0, 57); |
| if (s->ps.sps->chroma_format_idc == 1) { |
| if (qp_i < 30) |
| qp = qp_i; |
| else if (qp_i > 43) |
| qp = qp_i - 6; |
| else |
| qp = qp_c[qp_i - 30]; |
| } else { |
| qp = av_clip(qp_i, 0, 51); |
| } |
| |
| idxt = av_clip(qp + DEFAULT_INTRA_TC_OFFSET + tc_offset, 0, 53); |
| return tctable[idxt]; |
| } |
| |
| static int get_qPy_pred(HEVCContext *s, int xBase, int yBase, int log2_cb_size) |
| { |
| HEVCLocalContext *lc = s->HEVClc; |
| int ctb_size_mask = (1 << s->ps.sps->log2_ctb_size) - 1; |
| int MinCuQpDeltaSizeMask = (1 << (s->ps.sps->log2_ctb_size - |
| s->ps.pps->diff_cu_qp_delta_depth)) - 1; |
| int xQgBase = xBase - (xBase & MinCuQpDeltaSizeMask); |
| int yQgBase = yBase - (yBase & MinCuQpDeltaSizeMask); |
| int min_cb_width = s->ps.sps->min_cb_width; |
| int x_cb = xQgBase >> s->ps.sps->log2_min_cb_size; |
| int y_cb = yQgBase >> s->ps.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->ps.sps->qp_bd_offset && qPy_a < 52); |
| av_assert2(qPy_b >= -s->ps.sps->qp_bd_offset && qPy_b < 52); |
| |
| return (qPy_a + qPy_b + 1) >> 1; |
| } |
| |
| void ff_hevc_set_qPy(HEVCContext *s, int xBase, int yBase, int log2_cb_size) |
| { |
| int qp_y = get_qPy_pred(s, xBase, yBase, log2_cb_size); |
| |
| if (s->HEVClc->tu.cu_qp_delta != 0) { |
| int off = s->ps.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->ps.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->ps.sps->min_cb_width]; |
| } |
| |
| static void copy_CTB(uint8_t *dst, const uint8_t *src, int width, int height, |
| intptr_t stride_dst, intptr_t stride_src) |
| { |
| int i, j; |
| |
| if (((intptr_t)dst | (intptr_t)src | stride_dst | stride_src) & 15) { |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j+=8) |
| AV_COPY64U(dst+j, src+j); |
| dst += stride_dst; |
| src += stride_src; |
| } |
| } else { |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j+=16) |
| AV_COPY128(dst+j, src+j); |
| dst += stride_dst; |
| src += stride_src; |
| } |
| } |
| } |
| |
| static void copy_pixel(uint8_t *dst, const uint8_t *src, int pixel_shift) |
| { |
| if (pixel_shift) |
| *(uint16_t *)dst = *(uint16_t *)src; |
| else |
| *dst = *src; |
| } |
| |
| static void copy_vert(uint8_t *dst, const uint8_t *src, |
| int pixel_shift, int height, |
| int stride_dst, int stride_src) |
| { |
| int i; |
| if (pixel_shift == 0) { |
| for (i = 0; i < height; i++) { |
| *dst = *src; |
| dst += stride_dst; |
| src += stride_src; |
| } |
| } else { |
| for (i = 0; i < height; i++) { |
| *(uint16_t *)dst = *(uint16_t *)src; |
| dst += stride_dst; |
| src += stride_src; |
| } |
| } |
| } |
| |
| static void copy_CTB_to_hv(HEVCContext *s, const uint8_t *src, |
| int stride_src, int x, int y, int width, int height, |
| int c_idx, int x_ctb, int y_ctb) |
| { |
| int sh = s->ps.sps->pixel_shift; |
| int w = s->ps.sps->width >> s->ps.sps->hshift[c_idx]; |
| int h = s->ps.sps->height >> s->ps.sps->vshift[c_idx]; |
| |
| /* copy horizontal edges */ |
| memcpy(s->sao_pixel_buffer_h[c_idx] + (((2 * y_ctb) * w + x) << sh), |
| src, width << sh); |
| memcpy(s->sao_pixel_buffer_h[c_idx] + (((2 * y_ctb + 1) * w + x) << sh), |
| src + stride_src * (height - 1), width << sh); |
| |
| /* copy vertical edges */ |
| copy_vert(s->sao_pixel_buffer_v[c_idx] + (((2 * x_ctb) * h + y) << sh), src, sh, height, 1 << sh, stride_src); |
| |
| copy_vert(s->sao_pixel_buffer_v[c_idx] + (((2 * x_ctb + 1) * h + y) << sh), src + ((width - 1) << sh), sh, height, 1 << sh, stride_src); |
| } |
| |
| static void restore_tqb_pixels(HEVCContext *s, |
| uint8_t *src1, const uint8_t *dst1, |
| ptrdiff_t stride_src, ptrdiff_t stride_dst, |
| int x0, int y0, int width, int height, int c_idx) |
| { |
| if ( s->ps.pps->transquant_bypass_enable_flag || |
| (s->ps.sps->pcm.loop_filter_disable_flag && s->ps.sps->pcm_enabled_flag)) { |
| int x, y; |
| int min_pu_size = 1 << s->ps.sps->log2_min_pu_size; |
| int hshift = s->ps.sps->hshift[c_idx]; |
| int vshift = s->ps.sps->vshift[c_idx]; |
| int x_min = ((x0 ) >> s->ps.sps->log2_min_pu_size); |
| int y_min = ((y0 ) >> s->ps.sps->log2_min_pu_size); |
| int x_max = ((x0 + width ) >> s->ps.sps->log2_min_pu_size); |
| int y_max = ((y0 + height) >> s->ps.sps->log2_min_pu_size); |
| int len = (min_pu_size >> hshift) << s->ps.sps->pixel_shift; |
| for (y = y_min; y < y_max; y++) { |
| for (x = x_min; x < x_max; x++) { |
| if (s->is_pcm[y * s->ps.sps->min_pu_width + x]) { |
| int n; |
| uint8_t *src = src1 + (((y << s->ps.sps->log2_min_pu_size) - y0) >> vshift) * stride_src + ((((x << s->ps.sps->log2_min_pu_size) - x0) >> hshift) << s->ps.sps->pixel_shift); |
| const uint8_t *dst = dst1 + (((y << s->ps.sps->log2_min_pu_size) - y0) >> vshift) * stride_dst + ((((x << s->ps.sps->log2_min_pu_size) - x0) >> hshift) << s->ps.sps->pixel_shift); |
| for (n = 0; n < (min_pu_size >> vshift); n++) { |
| memcpy(src, dst, len); |
| src += stride_src; |
| dst += stride_dst; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| #define CTB(tab, x, y) ((tab)[(y) * s->ps.sps->ctb_width + (x)]) |
| |
| static void sao_filter_CTB(HEVCContext *s, int x, int y) |
| { |
| static const uint8_t sao_tab[8] = { 0, 1, 2, 2, 3, 3, 4, 4 }; |
| HEVCLocalContext *lc = s->HEVClc; |
| int c_idx; |
| int edges[4]; // 0 left 1 top 2 right 3 bottom |
| int x_ctb = x >> s->ps.sps->log2_ctb_size; |
| int y_ctb = y >> s->ps.sps->log2_ctb_size; |
| int ctb_addr_rs = y_ctb * s->ps.sps->ctb_width + x_ctb; |
| int ctb_addr_ts = s->ps.pps->ctb_addr_rs_to_ts[ctb_addr_rs]; |
| SAOParams *sao = &CTB(s->sao, x_ctb, y_ctb); |
| // flags indicating unfilterable edges |
| uint8_t vert_edge[] = { 0, 0 }; |
| uint8_t horiz_edge[] = { 0, 0 }; |
| uint8_t diag_edge[] = { 0, 0, 0, 0 }; |
| uint8_t lfase = CTB(s->filter_slice_edges, x_ctb, y_ctb); |
| uint8_t no_tile_filter = s->ps.pps->tiles_enabled_flag && |
| !s->ps.pps->loop_filter_across_tiles_enabled_flag; |
| uint8_t restore = no_tile_filter || !lfase; |
| uint8_t left_tile_edge = 0; |
| uint8_t right_tile_edge = 0; |
| uint8_t up_tile_edge = 0; |
| uint8_t bottom_tile_edge = 0; |
| |
| edges[0] = x_ctb == 0; |
| edges[1] = y_ctb == 0; |
| edges[2] = x_ctb == s->ps.sps->ctb_width - 1; |
| edges[3] = y_ctb == s->ps.sps->ctb_height - 1; |
| |
| if (restore) { |
| if (!edges[0]) { |
| left_tile_edge = no_tile_filter && s->ps.pps->tile_id[ctb_addr_ts] != s->ps.pps->tile_id[s->ps.pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]]; |
| vert_edge[0] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb)) || left_tile_edge; |
| } |
| if (!edges[2]) { |
| right_tile_edge = no_tile_filter && s->ps.pps->tile_id[ctb_addr_ts] != s->ps.pps->tile_id[s->ps.pps->ctb_addr_rs_to_ts[ctb_addr_rs+1]]; |
| vert_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb)) || right_tile_edge; |
| } |
| if (!edges[1]) { |
| up_tile_edge = no_tile_filter && s->ps.pps->tile_id[ctb_addr_ts] != s->ps.pps->tile_id[s->ps.pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->ps.sps->ctb_width]]; |
| horiz_edge[0] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) || up_tile_edge; |
| } |
| if (!edges[3]) { |
| bottom_tile_edge = no_tile_filter && s->ps.pps->tile_id[ctb_addr_ts] != s->ps.pps->tile_id[s->ps.pps->ctb_addr_rs_to_ts[ctb_addr_rs + s->ps.sps->ctb_width]]; |
| horiz_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb + 1)) || bottom_tile_edge; |
| } |
| if (!edges[0] && !edges[1]) { |
| diag_edge[0] = (!lfase && 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; |
| } |
| if (!edges[1] && !edges[2]) { |
| diag_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb - 1)) || right_tile_edge || up_tile_edge; |
| } |
| if (!edges[2] && !edges[3]) { |
| diag_edge[2] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb + 1)) || right_tile_edge || bottom_tile_edge; |
| } |
| if (!edges[0] && !edges[3]) { |
| diag_edge[3] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb + 1)) || left_tile_edge || bottom_tile_edge; |
| } |
| } |
| |
| for (c_idx = 0; c_idx < (s->ps.sps->chroma_format_idc ? 3 : 1); c_idx++) { |
| int x0 = x >> s->ps.sps->hshift[c_idx]; |
| int y0 = y >> s->ps.sps->vshift[c_idx]; |
| int stride_src = s->frame->linesize[c_idx]; |
| int ctb_size_h = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->hshift[c_idx]; |
| int ctb_size_v = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->vshift[c_idx]; |
| int width = FFMIN(ctb_size_h, (s->ps.sps->width >> s->ps.sps->hshift[c_idx]) - x0); |
| int height = FFMIN(ctb_size_v, (s->ps.sps->height >> s->ps.sps->vshift[c_idx]) - y0); |
| int tab = sao_tab[(FFALIGN(width, 8) >> 3) - 1]; |
| uint8_t *src = &s->frame->data[c_idx][y0 * stride_src + (x0 << s->ps.sps->pixel_shift)]; |
| int stride_dst; |
| uint8_t *dst; |
| |
| switch (sao->type_idx[c_idx]) { |
| case SAO_BAND: |
| copy_CTB_to_hv(s, src, stride_src, x0, y0, width, height, c_idx, |
| x_ctb, y_ctb); |
| if (s->ps.pps->transquant_bypass_enable_flag || |
| (s->ps.sps->pcm.loop_filter_disable_flag && s->ps.sps->pcm_enabled_flag)) { |
| dst = lc->edge_emu_buffer; |
| stride_dst = 2*MAX_PB_SIZE; |
| copy_CTB(dst, src, width << s->ps.sps->pixel_shift, height, stride_dst, stride_src); |
| s->hevcdsp.sao_band_filter[tab](src, dst, stride_src, stride_dst, |
| sao->offset_val[c_idx], sao->band_position[c_idx], |
| width, height); |
| restore_tqb_pixels(s, src, dst, stride_src, stride_dst, |
| x, y, width, height, c_idx); |
| } else { |
| s->hevcdsp.sao_band_filter[tab](src, src, stride_src, stride_src, |
| sao->offset_val[c_idx], sao->band_position[c_idx], |
| width, height); |
| } |
| sao->type_idx[c_idx] = SAO_APPLIED; |
| break; |
| case SAO_EDGE: |
| { |
| int w = s->ps.sps->width >> s->ps.sps->hshift[c_idx]; |
| int h = s->ps.sps->height >> s->ps.sps->vshift[c_idx]; |
| int left_edge = edges[0]; |
| int top_edge = edges[1]; |
| int right_edge = edges[2]; |
| int bottom_edge = edges[3]; |
| int sh = s->ps.sps->pixel_shift; |
| int left_pixels, right_pixels; |
| |
| stride_dst = 2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE; |
| dst = lc->edge_emu_buffer + stride_dst + AV_INPUT_BUFFER_PADDING_SIZE; |
| |
| if (!top_edge) { |
| int left = 1 - left_edge; |
| int right = 1 - right_edge; |
| const uint8_t *src1[2]; |
| uint8_t *dst1; |
| int src_idx, pos; |
| |
| dst1 = dst - stride_dst - (left << sh); |
| src1[0] = src - stride_src - (left << sh); |
| src1[1] = s->sao_pixel_buffer_h[c_idx] + (((2 * y_ctb - 1) * w + x0 - left) << sh); |
| pos = 0; |
| if (left) { |
| src_idx = (CTB(s->sao, x_ctb-1, y_ctb-1).type_idx[c_idx] == |
| SAO_APPLIED); |
| copy_pixel(dst1, src1[src_idx], sh); |
| pos += (1 << sh); |
| } |
| src_idx = (CTB(s->sao, x_ctb, y_ctb-1).type_idx[c_idx] == |
| SAO_APPLIED); |
| memcpy(dst1 + pos, src1[src_idx] + pos, width << sh); |
| if (right) { |
| pos += width << sh; |
| src_idx = (CTB(s->sao, x_ctb+1, y_ctb-1).type_idx[c_idx] == |
| SAO_APPLIED); |
| copy_pixel(dst1 + pos, src1[src_idx] + pos, sh); |
| } |
| } |
| if (!bottom_edge) { |
| int left = 1 - left_edge; |
| int right = 1 - right_edge; |
| const uint8_t *src1[2]; |
| uint8_t *dst1; |
| int src_idx, pos; |
| |
| dst1 = dst + height * stride_dst - (left << sh); |
| src1[0] = src + height * stride_src - (left << sh); |
| src1[1] = s->sao_pixel_buffer_h[c_idx] + (((2 * y_ctb + 2) * w + x0 - left) << sh); |
| pos = 0; |
| if (left) { |
| src_idx = (CTB(s->sao, x_ctb-1, y_ctb+1).type_idx[c_idx] == |
| SAO_APPLIED); |
| copy_pixel(dst1, src1[src_idx], sh); |
| pos += (1 << sh); |
| } |
| src_idx = (CTB(s->sao, x_ctb, y_ctb+1).type_idx[c_idx] == |
| SAO_APPLIED); |
| memcpy(dst1 + pos, src1[src_idx] + pos, width << sh); |
| if (right) { |
| pos += width << sh; |
| src_idx = (CTB(s->sao, x_ctb+1, y_ctb+1).type_idx[c_idx] == |
| SAO_APPLIED); |
| copy_pixel(dst1 + pos, src1[src_idx] + pos, sh); |
| } |
| } |
| left_pixels = 0; |
| if (!left_edge) { |
| if (CTB(s->sao, x_ctb-1, y_ctb).type_idx[c_idx] == SAO_APPLIED) { |
| copy_vert(dst - (1 << sh), |
| s->sao_pixel_buffer_v[c_idx] + (((2 * x_ctb - 1) * h + y0) << sh), |
| sh, height, stride_dst, 1 << sh); |
| } else { |
| left_pixels = 1; |
| } |
| } |
| right_pixels = 0; |
| if (!right_edge) { |
| if (CTB(s->sao, x_ctb+1, y_ctb).type_idx[c_idx] == SAO_APPLIED) { |
| copy_vert(dst + (width << sh), |
| s->sao_pixel_buffer_v[c_idx] + (((2 * x_ctb + 2) * h + y0) << sh), |
| sh, height, stride_dst, 1 << sh); |
| } else { |
| right_pixels = 1; |
| } |
| } |
| |
| copy_CTB(dst - (left_pixels << sh), |
| src - (left_pixels << sh), |
| (width + left_pixels + right_pixels) << sh, |
| height, stride_dst, stride_src); |
| |
| copy_CTB_to_hv(s, src, stride_src, x0, y0, width, height, c_idx, |
| x_ctb, y_ctb); |
| s->hevcdsp.sao_edge_filter[tab](src, dst, stride_src, sao->offset_val[c_idx], |
| sao->eo_class[c_idx], width, height); |
| s->hevcdsp.sao_edge_restore[restore](src, dst, |
| stride_src, stride_dst, |
| sao, |
| edges, width, |
| height, c_idx, |
| vert_edge, |
| horiz_edge, |
| diag_edge); |
| restore_tqb_pixels(s, src, dst, stride_src, stride_dst, |
| x, y, width, height, c_idx); |
| sao->type_idx[c_idx] = SAO_APPLIED; |
| break; |
| } |
| } |
| } |
| } |
| |
| static int get_pcm(HEVCContext *s, int x, int y) |
| { |
| int log2_min_pu_size = s->ps.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->ps.sps->min_pu_width || y_pu >= s->ps.sps->min_pu_height) |
| return 2; |
| return s->is_pcm[y_pu * s->ps.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, beta; |
| int32_t c_tc[2], tc[2]; |
| uint8_t no_p[2] = { 0 }; |
| uint8_t no_q[2] = { 0 }; |
| |
| int log2_ctb_size = s->ps.sps->log2_ctb_size; |
| int x_end, x_end2, y_end; |
| int ctb_size = 1 << log2_ctb_size; |
| int ctb = (x0 >> log2_ctb_size) + |
| (y0 >> log2_ctb_size) * s->ps.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->ps.sps->pcm_enabled_flag && |
| s->ps.sps->pcm.loop_filter_disable_flag) || |
| s->ps.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; |
| } else { |
| left_tc_offset = 0; |
| left_beta_offset = 0; |
| } |
| |
| x_end = x0 + ctb_size; |
| if (x_end > s->ps.sps->width) |
| x_end = s->ps.sps->width; |
| y_end = y0 + ctb_size; |
| if (y_end > s->ps.sps->height) |
| y_end = s->ps.sps->height; |
| |
| tc_offset = cur_tc_offset; |
| beta_offset = cur_beta_offset; |
| |
| x_end2 = x_end; |
| if (x_end2 != s->ps.sps->width) |
| x_end2 -= 8; |
| for (y = y0; y < y_end; y += 8) { |
| // vertical filtering luma |
| for (x = x0 ? x0 : 8; x < x_end; x += 8) { |
| const int bs0 = s->vertical_bs[(x + y * s->bs_width) >> 2]; |
| const int bs1 = s->vertical_bs[(x + (y + 4) * s->bs_width) >> 2]; |
| if (bs0 || bs1) { |
| const int qp = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1; |
| |
| beta = betatable[av_clip(qp + beta_offset, 0, MAX_QP)]; |
| |
| tc[0] = bs0 ? TC_CALC(qp, bs0) : 0; |
| tc[1] = bs1 ? TC_CALC(qp, bs1) : 0; |
| src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->ps.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); |
| } |
| } |
| |
| if(!y) |
| continue; |
| |
| // horizontal filtering luma |
| for (x = x0 ? x0 - 8 : 0; x < x_end2; 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 qp = (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1; |
| |
| tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset; |
| beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset; |
| |
| beta = betatable[av_clip(qp + beta_offset, 0, MAX_QP)]; |
| tc[0] = bs0 ? TC_CALC(qp, bs0) : 0; |
| tc[1] = bs1 ? TC_CALC(qp, bs1) : 0; |
| src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->ps.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); |
| } |
| } |
| } |
| |
| if (s->ps.sps->chroma_format_idc) { |
| for (chroma = 1; chroma <= 2; chroma++) { |
| int h = 1 << s->ps.sps->hshift[chroma]; |
| int v = 1 << s->ps.sps->vshift[chroma]; |
| |
| // vertical filtering chroma |
| for (y = y0; y < y_end; y += (8 * v)) { |
| for (x = x0 ? x0 : 8 * h; x < x_end; x += (8 * h)) { |
| const int bs0 = s->vertical_bs[(x + y * s->bs_width) >> 2]; |
| const int bs1 = s->vertical_bs[(x + (y + (4 * v)) * s->bs_width) >> 2]; |
| |
| 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 + (4 * v)) + get_qPy(s, x, y + (4 * v)) + 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 >> s->ps.sps->vshift[chroma]) * s->frame->linesize[chroma] + ((x >> s->ps.sps->hshift[chroma]) << s->ps.sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x - 1, y); |
| no_p[1] = get_pcm(s, x - 1, y + (4 * v)); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x, y + (4 * v)); |
| 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); |
| } |
| } |
| |
| if(!y) |
| continue; |
| |
| // horizontal filtering chroma |
| tc_offset = x0 ? left_tc_offset : cur_tc_offset; |
| x_end2 = x_end; |
| if (x_end != s->ps.sps->width) |
| x_end2 = x_end - 8 * h; |
| for (x = x0 ? x0 - 8 * h : 0; x < x_end2; x += (8 * h)) { |
| const int bs0 = s->horizontal_bs[( x + y * s->bs_width) >> 2]; |
| const int bs1 = s->horizontal_bs[((x + 4 * h) + 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 + (4 * h), y - 1) + get_qPy(s, x + (4 * h), y) + 1) >> 1 : 0; |
| |
| 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 >> s->ps.sps->vshift[1]) * s->frame->linesize[chroma] + ((x >> s->ps.sps->hshift[1]) << s->ps.sps->pixel_shift)]; |
| if (pcmf) { |
| no_p[0] = get_pcm(s, x, y - 1); |
| no_p[1] = get_pcm(s, x + (4 * h), y - 1); |
| no_q[0] = get_pcm(s, x, y); |
| no_q[1] = get_pcm(s, x + (4 * h), 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, MvField *neigh, |
| RefPicList *neigh_refPicList) |
| { |
| if (curr->pred_flag == PF_BI && neigh->pred_flag == PF_BI) { |
| // 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 ((FFABS(neigh->mv[0].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[0].y) >= 4 || |
| FFABS(neigh->mv[1].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[1].y) >= 4) && |
| (FFABS(neigh->mv[1].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[0].y) >= 4 || |
| FFABS(neigh->mv[0].x - curr->mv[1].x) >= 4 || FFABS(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 (FFABS(neigh->mv[0].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[0].y) >= 4 || |
| FFABS(neigh->mv[1].x - curr->mv[1].x) >= 4 || FFABS(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 (FFABS(neigh->mv[1].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[0].y) >= 4 || |
| FFABS(neigh->mv[0].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[1].y) >= 4) |
| return 1; |
| else |
| return 0; |
| } else { |
| return 1; |
| } |
| } else if ((curr->pred_flag != PF_BI) && (neigh->pred_flag != PF_BI)){ // 1 MV |
| Mv A, B; |
| int ref_A, ref_B; |
| |
| if (curr->pred_flag & 1) { |
| 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 & 1) { |
| 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 (FFABS(A.x - B.x) >= 4 || FFABS(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) |
| { |
| HEVCLocalContext *lc = s->HEVClc; |
| MvField *tab_mvf = s->ref->tab_mvf; |
| int log2_min_pu_size = s->ps.sps->log2_min_pu_size; |
| int log2_min_tu_size = s->ps.sps->log2_min_tb_size; |
| int min_pu_width = s->ps.sps->min_pu_width; |
| int min_tu_width = s->ps.sps->min_tb_width; |
| int is_intra = tab_mvf[(y0 >> log2_min_pu_size) * min_pu_width + |
| (x0 >> log2_min_pu_size)].pred_flag == PF_INTRA; |
| int boundary_upper, boundary_left; |
| int i, j, bs; |
| |
| boundary_upper = y0 > 0 && !(y0 & 7); |
| if (boundary_upper && |
| ((!s->sh.slice_loop_filter_across_slices_enabled_flag && |
| lc->boundary_flags & BOUNDARY_UPPER_SLICE && |
| (y0 % (1 << s->ps.sps->log2_ctb_size)) == 0) || |
| (!s->ps.pps->loop_filter_across_tiles_enabled_flag && |
| lc->boundary_flags & BOUNDARY_UPPER_TILE && |
| (y0 % (1 << s->ps.sps->log2_ctb_size)) == 0))) |
| boundary_upper = 0; |
| |
| if (boundary_upper) { |
| RefPicList *rpl_top = (lc->boundary_flags & BOUNDARY_UPPER_SLICE) ? |
| ff_hevc_get_ref_list(s, s->ref, x0, y0 - 1) : |
| s->ref->refPicList; |
| 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]; |
| |
| if (curr->pred_flag == PF_INTRA || top->pred_flag == PF_INTRA) |
| bs = 2; |
| else if (curr_cbf_luma || top_cbf_luma) |
| bs = 1; |
| else |
| bs = boundary_strength(s, curr, top, rpl_top); |
| s->horizontal_bs[((x0 + i) + y0 * s->bs_width) >> 2] = bs; |
| } |
| } |
| |
| // bs for vertical TU boundaries |
| boundary_left = x0 > 0 && !(x0 & 7); |
| if (boundary_left && |
| ((!s->sh.slice_loop_filter_across_slices_enabled_flag && |
| lc->boundary_flags & BOUNDARY_LEFT_SLICE && |
| (x0 % (1 << s->ps.sps->log2_ctb_size)) == 0) || |
| (!s->ps.pps->loop_filter_across_tiles_enabled_flag && |
| lc->boundary_flags & BOUNDARY_LEFT_TILE && |
| (x0 % (1 << s->ps.sps->log2_ctb_size)) == 0))) |
| boundary_left = 0; |
| |
| if (boundary_left) { |
| RefPicList *rpl_left = (lc->boundary_flags & BOUNDARY_LEFT_SLICE) ? |
| ff_hevc_get_ref_list(s, s->ref, x0 - 1, y0) : |
| s->ref->refPicList; |
| 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]; |
| |
| if (curr->pred_flag == PF_INTRA || left->pred_flag == PF_INTRA) |
| bs = 2; |
| else if (curr_cbf_luma || left_cbf_luma) |
| bs = 1; |
| else |
| bs = boundary_strength(s, curr, left, rpl_left); |
| s->vertical_bs[(x0 + (y0 + i) * s->bs_width) >> 2] = bs; |
| } |
| } |
| |
| if (log2_trafo_size > log2_min_pu_size && !is_intra) { |
| RefPicList *rpl = s->ref->refPicList; |
| |
| // bs for TU internal horizontal PU boundaries |
| 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; |
| |
| for (i = 0; i < (1 << log2_trafo_size); i += 4) { |
| int x_pu = (x0 + i) >> log2_min_pu_size; |
| MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu]; |
| MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu]; |
| |
| bs = boundary_strength(s, curr, top, rpl); |
| s->horizontal_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs; |
| } |
| } |
| |
| // bs for TU internal vertical PU boundaries |
| for (j = 0; j < (1 << log2_trafo_size); j += 4) { |
| int y_pu = (y0 + j) >> log2_min_pu_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; |
| MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu]; |
| MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu]; |
| |
| bs = boundary_strength(s, curr, left, rpl); |
| s->vertical_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs; |
| } |
| } |
| } |
| } |
| |
| #undef LUMA |
| #undef CB |
| #undef CR |
| |
| void ff_hevc_hls_filter(HEVCContext *s, int x, int y, int ctb_size) |
| { |
| int x_end = x >= s->ps.sps->width - ctb_size; |
| if (s->avctx->skip_loop_filter < AVDISCARD_ALL) |
| deblocking_filter_CTB(s, x, y); |
| if (s->ps.sps->sao_enabled) { |
| int y_end = y >= s->ps.sps->height - ctb_size; |
| if (y && x) |
| sao_filter_CTB(s, x - ctb_size, y - ctb_size); |
| if (x && y_end) |
| sao_filter_CTB(s, x - ctb_size, y); |
| if (y && x_end) { |
| sao_filter_CTB(s, x, y - ctb_size); |
| if (s->threads_type & FF_THREAD_FRAME ) |
| ff_thread_report_progress(&s->ref->tf, y, 0); |
| } |
| if (x_end && y_end) { |
| sao_filter_CTB(s, x , y); |
| if (s->threads_type & FF_THREAD_FRAME ) |
| ff_thread_report_progress(&s->ref->tf, y + ctb_size, 0); |
| } |
| } else if (s->threads_type & FF_THREAD_FRAME && x_end) |
| ff_thread_report_progress(&s->ref->tf, y + ctb_size - 4, 0); |
| } |
| |
| void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size) |
| { |
| int x_end = x_ctb >= s->ps.sps->width - ctb_size; |
| int y_end = y_ctb >= s->ps.sps->height - ctb_size; |
| if (y_ctb && x_ctb) |
| ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb - ctb_size, ctb_size); |
| if (y_ctb && x_end) |
| ff_hevc_hls_filter(s, x_ctb, y_ctb - ctb_size, ctb_size); |
| if (x_ctb && y_end) |
| ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb, ctb_size); |
| } |
