| /****************************************************************************** |
| * |
| * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| /** |
| ******************************************************************************* |
| * @file |
| * ihevc_sao.c |
| * |
| * @brief |
| * Contains function definitions for sample adaptive offset process |
| * |
| * @author |
| * Srinivas T |
| * |
| * @par List of Functions: |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| #include <stdio.h> |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include "ihevc_typedefs.h" |
| #include "iv.h" |
| #include "ivd.h" |
| #include "ihevcd_cxa.h" |
| #include "ithread.h" |
| |
| #include "ihevc_defs.h" |
| #include "ihevc_debug.h" |
| #include "ihevc_defs.h" |
| #include "ihevc_structs.h" |
| #include "ihevc_macros.h" |
| #include "ihevc_platform_macros.h" |
| #include "ihevc_cabac_tables.h" |
| #include "ihevc_sao.h" |
| #include "ihevc_mem_fns.h" |
| |
| #include "ihevc_error.h" |
| #include "ihevc_common_tables.h" |
| |
| #include "ihevcd_trace.h" |
| #include "ihevcd_defs.h" |
| #include "ihevcd_function_selector.h" |
| #include "ihevcd_structs.h" |
| #include "ihevcd_error.h" |
| #include "ihevcd_nal.h" |
| #include "ihevcd_bitstream.h" |
| #include "ihevcd_job_queue.h" |
| #include "ihevcd_utils.h" |
| |
| #include "ihevc_deblk.h" |
| #include "ihevc_deblk_tables.h" |
| #include "ihevcd_profile.h" |
| #include "ihevcd_sao.h" |
| #include "ihevcd_debug.h" |
| |
| #define SAO_SHIFT_CTB 8 |
| |
| /** |
| * SAO at CTB level is implemented for a shifted CTB(8 pixels in x and y directions) |
| */ |
| void ihevcd_sao_ctb(sao_ctxt_t *ps_sao_ctxt) |
| { |
| codec_t *ps_codec = ps_sao_ctxt->ps_codec; |
| UWORD8 *pu1_src_luma; |
| UWORD8 *pu1_src_chroma; |
| WORD32 src_strd; |
| WORD32 ctb_size; |
| WORD32 log2_ctb_size; |
| sps_t *ps_sps; |
| sao_t *ps_sao; |
| WORD32 row, col; |
| UWORD8 au1_avail_luma[8]; |
| UWORD8 au1_avail_chroma[8]; |
| WORD32 i; |
| UWORD8 *pu1_src_top_luma; |
| UWORD8 *pu1_src_top_chroma; |
| UWORD8 *pu1_src_left_luma; |
| UWORD8 *pu1_src_left_chroma; |
| UWORD8 au1_src_top_right[2]; |
| UWORD8 au1_src_bot_left[2]; |
| UWORD8 *pu1_no_loop_filter_flag; |
| WORD32 loop_filter_strd; |
| |
| WORD8 ai1_offset_y[5]; |
| WORD8 ai1_offset_cb[5]; |
| WORD8 ai1_offset_cr[5]; |
| |
| PROFILE_DISABLE_SAO(); |
| |
| ai1_offset_y[0] = 0; |
| ai1_offset_cb[0] = 0; |
| ai1_offset_cr[0] = 0; |
| |
| ps_sps = ps_sao_ctxt->ps_sps; |
| log2_ctb_size = ps_sps->i1_log2_ctb_size; |
| ctb_size = (1 << log2_ctb_size); |
| src_strd = ps_sao_ctxt->ps_codec->i4_strd; |
| pu1_src_luma = ps_sao_ctxt->pu1_cur_pic_luma + ((ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sao_ctxt->ps_codec->i4_strd) << (log2_ctb_size)); |
| pu1_src_chroma = ps_sao_ctxt->pu1_cur_pic_chroma + ((ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sao_ctxt->ps_codec->i4_strd / 2) << (log2_ctb_size)); |
| |
| ps_sao = ps_sao_ctxt->ps_pic_sao + ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sps->i2_pic_wd_in_ctb; |
| loop_filter_strd = (ps_sps->i2_pic_width_in_luma_samples + 63) / 64; |
| |
| /* Current CTB */ |
| { |
| WORD32 sao_wd_luma; |
| WORD32 sao_wd_chroma; |
| WORD32 sao_ht_luma; |
| WORD32 sao_ht_chroma; |
| |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| sao_wd_luma = MIN(ctb_size, remaining_cols); |
| sao_wd_chroma = MIN(ctb_size, remaining_cols); |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| sao_ht_luma = MIN(ctb_size, remaining_rows); |
| sao_ht_chroma = MIN(ctb_size, remaining_rows) / 2; |
| |
| pu1_src_top_luma = ps_sao_ctxt->pu1_sao_src_top_luma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_top_chroma = ps_sao_ctxt->pu1_sao_src_top_chroma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_left_luma = ps_sao_ctxt->pu1_sao_src_left_luma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| pu1_src_left_chroma = ps_sao_ctxt->pu1_sao_src_left_chroma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| |
| pu1_no_loop_filter_flag = ps_sao_ctxt->pu1_pic_no_loop_filter_flag + |
| ((ps_sao_ctxt->i4_ctb_y * ctb_size) / 8) * loop_filter_strd + |
| ((ps_sao_ctxt->i4_ctb_x * ctb_size) / 64); |
| |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_luma[i] = 255; |
| au1_avail_chroma[i] = 255; |
| } |
| |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[0] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[6] = 0; |
| |
| au1_avail_chroma[0] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_wd_in_ctb - 1 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[1] = 0; |
| au1_avail_luma[5] = 0; |
| au1_avail_luma[7] = 0; |
| |
| au1_avail_chroma[1] = 0; |
| au1_avail_chroma[5] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[2] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[5] = 0; |
| |
| au1_avail_chroma[2] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_ht_in_ctb - 1 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[3] = 0; |
| au1_avail_luma[6] = 0; |
| au1_avail_luma[7] = 0; |
| |
| au1_avail_chroma[3] = 0; |
| au1_avail_chroma[6] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| |
| if(0 == ps_sao->b3_y_type_idx) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| ps_sao_ctxt->pu1_sao_src_top_left_luma_curr_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| } |
| else |
| { |
| UWORD8 au1_src_copy[(MAX_CTB_SIZE + 2) * (MAX_CTB_SIZE + 2)]; |
| UWORD8 *pu1_src_copy = au1_src_copy + (MAX_CTB_SIZE + 2) + 1; |
| WORD32 tmp_strd = MAX_CTB_SIZE + 2; |
| WORD32 no_loop_filter_enabled = 0; |
| |
| /* Check the loop filter flags and copy the original values for back up */ |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 min_cu = 8; |
| UWORD8 *pu1_src_tmp = pu1_src_luma; |
| |
| for(i = 0; i < (sao_ht_luma + min_cu - 1) / min_cu; i++) |
| { |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> |
| ((((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma) / 8) % 8); |
| u4_no_loop_filter_flag &= (1 << ((sao_wd_luma + (min_cu - 1)) / min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| WORD32 tmp_wd = sao_wd_luma; |
| no_loop_filter_enabled = 1; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) * min_cu; |
| } |
| else |
| { |
| for(row = 0; row < MIN(min_cu, sao_ht_luma - (i - 1) * min_cu); row++) |
| { |
| for(col = 0; col < MIN((WORD32)CTZ(~u4_no_loop_filter_flag) * min_cu, tmp_wd); col++) |
| { |
| pu1_src_copy[row * src_strd + col] = pu1_src_tmp[row * tmp_strd + col]; |
| } |
| } |
| |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) * min_cu; |
| } |
| } |
| |
| pu1_src_tmp -= sao_wd_luma; |
| } |
| |
| pu1_src_tmp += min_cu * src_strd; |
| pu1_src_copy += min_cu * tmp_strd; |
| } |
| } |
| |
| if(1 == ps_sao->b3_y_type_idx) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_luma_fptr(pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| ps_sao_ctxt->pu1_sao_src_top_left_luma_curr_ctb, |
| ps_sao->b5_y_band_pos, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| else // if(2 <= ps_sao->b3_y_type_idx) |
| { |
| au1_src_top_right[0] = pu1_src_top_luma[sao_wd_luma]; |
| au1_src_bot_left[0] = pu1_src_luma[sao_ht_luma * src_strd - 1]; |
| ps_codec->apf_sao_luma[ps_sao->b3_y_type_idx - 2](pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| ps_sao_ctxt->pu1_sao_src_top_left_luma_curr_ctb, |
| au1_src_top_right, |
| au1_src_bot_left, |
| au1_avail_luma, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| |
| /* Check the loop filter flags and copy the original values back if they are set */ |
| if(no_loop_filter_enabled) |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 min_cu = 8; |
| UWORD8 *pu1_src_tmp = pu1_src_luma; |
| |
| for(i = 0; i < (sao_ht_luma + min_cu - 1) / min_cu; i++) |
| { |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> ((((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma) / 8) % 8); |
| u4_no_loop_filter_flag &= (1 << ((sao_wd_luma + (min_cu - 1)) / min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| WORD32 tmp_wd = sao_wd_luma; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) * min_cu; |
| } |
| else |
| { |
| for(row = 0; row < MIN(min_cu, sao_ht_luma - (i - 1) * min_cu); row++) |
| { |
| for(col = 0; col < MIN((WORD32)CTZ(~u4_no_loop_filter_flag) * min_cu, tmp_wd); col++) |
| { |
| pu1_src_tmp[row * src_strd + col] = pu1_src_copy[row * tmp_strd + col]; |
| } |
| } |
| |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) * min_cu; |
| } |
| } |
| |
| pu1_src_tmp -= sao_wd_luma; |
| } |
| |
| pu1_src_tmp += min_cu * src_strd; |
| pu1_src_copy += min_cu * tmp_strd; |
| } |
| } |
| |
| } |
| |
| if(0 == ps_sao->b3_cb_type_idx) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| ps_sao_ctxt->pu1_sao_src_top_left_chroma_curr_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| ps_sao_ctxt->pu1_sao_src_top_left_chroma_curr_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| } |
| else |
| { |
| UWORD8 au1_src_copy[(MAX_CTB_SIZE + 4) * (MAX_CTB_SIZE + 2)]; |
| UWORD8 *pu1_src_copy = au1_src_copy + (MAX_CTB_SIZE + 4) + 2; |
| WORD32 tmp_strd = MAX_CTB_SIZE + 4; |
| WORD32 no_loop_filter_enabled = 0; |
| |
| /* Check the loop filter flags and copy the original values for back up */ |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 min_cu = 4; |
| UWORD8 *pu1_src_tmp = pu1_src_chroma; |
| |
| for(i = 0; i < (sao_ht_chroma + min_cu - 1) / min_cu; i++) |
| { |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> ((((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma) / 8) % 8); |
| u4_no_loop_filter_flag &= (1 << ((sao_wd_chroma + (min_cu - 1)) / min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| WORD32 tmp_wd = sao_wd_chroma; |
| no_loop_filter_enabled = 1; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) * min_cu; |
| } |
| else |
| { |
| for(row = 0; row < MIN(min_cu, sao_ht_chroma - (i - 1) * min_cu); row++) |
| { |
| for(col = 0; col < MIN((WORD32)CTZ(~u4_no_loop_filter_flag) * min_cu, tmp_wd); col++) |
| { |
| pu1_src_copy[row * src_strd + col] = pu1_src_tmp[row * tmp_strd + col]; |
| } |
| } |
| |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) * min_cu; |
| } |
| } |
| |
| pu1_src_tmp -= sao_wd_chroma; |
| } |
| |
| pu1_src_tmp += min_cu * src_strd; |
| pu1_src_copy += min_cu * tmp_strd; |
| } |
| } |
| |
| if(1 == ps_sao->b3_cb_type_idx) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| ps_sao_ctxt->pu1_sao_src_top_left_chroma_curr_ctb, |
| ps_sao->b5_cb_band_pos, |
| ps_sao->b5_cr_band_pos, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| else // if(2 <= ps_sao->b3_cb_type_idx) |
| { |
| au1_src_top_right[0] = pu1_src_top_chroma[sao_wd_chroma]; |
| au1_src_top_right[1] = pu1_src_top_chroma[sao_wd_chroma + 1]; |
| au1_src_bot_left[0] = pu1_src_chroma[sao_ht_chroma * src_strd - 2]; |
| au1_src_bot_left[1] = pu1_src_chroma[sao_ht_chroma * src_strd - 1]; |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| ps_sao_ctxt->pu1_sao_src_top_left_chroma_curr_ctb, |
| au1_src_top_right, |
| au1_src_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| |
| /* Check the loop filter flags and copy the original values back if they are set */ |
| if(no_loop_filter_enabled) |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 min_cu = 4; |
| UWORD8 *pu1_src_tmp = pu1_src_chroma; |
| |
| for(i = 0; i < (sao_ht_chroma + min_cu - 1) / min_cu; i++) |
| { |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> ((((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma) / 8) % 8); |
| u4_no_loop_filter_flag &= (1 << ((sao_wd_chroma + (min_cu - 1)) / min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| WORD32 tmp_wd = sao_wd_chroma; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) * min_cu; |
| } |
| else |
| { |
| for(row = 0; row < MIN(min_cu, sao_ht_chroma - (i - 1) * min_cu); row++) |
| { |
| for(col = 0; col < MIN((WORD32)CTZ(~u4_no_loop_filter_flag) * min_cu, tmp_wd); col++) |
| { |
| pu1_src_tmp[row * src_strd + col] = pu1_src_copy[row * tmp_strd + col]; |
| } |
| } |
| |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| pu1_src_tmp += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| pu1_src_copy += MIN((WORD32)CTZ(~u4_no_loop_filter_flag), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) * min_cu; |
| } |
| } |
| |
| pu1_src_tmp -= sao_wd_chroma; |
| } |
| |
| pu1_src_tmp += min_cu * src_strd; |
| pu1_src_copy += min_cu * tmp_strd; |
| } |
| } |
| |
| } |
| |
| } |
| } |
| |
| void ihevcd_sao_shift_ctb(sao_ctxt_t *ps_sao_ctxt) |
| { |
| codec_t *ps_codec = ps_sao_ctxt->ps_codec; |
| UWORD8 *pu1_src_luma; |
| UWORD8 *pu1_src_chroma; |
| WORD32 src_strd; |
| WORD32 ctb_size; |
| WORD32 log2_ctb_size; |
| sps_t *ps_sps; |
| sao_t *ps_sao; |
| pps_t *ps_pps; |
| slice_header_t *ps_slice_hdr, *ps_slice_hdr_base; |
| tile_t *ps_tile; |
| UWORD16 *pu1_slice_idx; |
| UWORD16 *pu1_tile_idx; |
| WORD32 row, col; |
| UWORD8 au1_avail_luma[8]; |
| UWORD8 au1_avail_chroma[8]; |
| UWORD8 au1_tile_slice_boundary[8]; |
| UWORD8 au4_ilf_across_tile_slice_enable[8]; |
| WORD32 i; |
| UWORD8 *pu1_src_top_luma; |
| UWORD8 *pu1_src_top_chroma; |
| UWORD8 *pu1_src_left_luma; |
| UWORD8 *pu1_src_left_chroma; |
| UWORD8 au1_src_top_right[2]; |
| UWORD8 au1_src_bot_left[2]; |
| UWORD8 *pu1_no_loop_filter_flag; |
| UWORD8 *pu1_src_backup_luma; |
| UWORD8 *pu1_src_backup_chroma; |
| WORD32 backup_strd; |
| WORD32 loop_filter_strd; |
| |
| WORD32 no_loop_filter_enabled_luma = 0; |
| WORD32 no_loop_filter_enabled_chroma = 0; |
| UWORD8 *pu1_sao_src_top_left_chroma_curr_ctb; |
| UWORD8 *pu1_sao_src_top_left_luma_curr_ctb; |
| UWORD8 *pu1_sao_src_luma_top_left_ctb; |
| UWORD8 *pu1_sao_src_chroma_top_left_ctb; |
| UWORD8 *pu1_sao_src_top_left_luma_top_right; |
| UWORD8 *pu1_sao_src_top_left_chroma_top_right; |
| UWORD8 u1_sao_src_top_left_luma_bot_left; |
| UWORD8 *pu1_sao_src_top_left_luma_bot_left; |
| UWORD8 *au1_sao_src_top_left_chroma_bot_left; |
| UWORD8 *pu1_sao_src_top_left_chroma_bot_left; |
| /* Only 5 values are used, but arrays are large |
| enough so that SIMD functions can read 64 bits at a time */ |
| WORD8 ai1_offset_y[8]; |
| WORD8 ai1_offset_cb[8]; |
| WORD8 ai1_offset_cr[8]; |
| WORD32 chroma_yuv420sp_vu = ps_sao_ctxt->is_chroma_yuv420sp_vu; |
| |
| PROFILE_DISABLE_SAO(); |
| |
| ai1_offset_y[0] = 0; |
| ai1_offset_cb[0] = 0; |
| ai1_offset_cr[0] = 0; |
| |
| ps_sps = ps_sao_ctxt->ps_sps; |
| ps_pps = ps_sao_ctxt->ps_pps; |
| ps_tile = ps_sao_ctxt->ps_tile; |
| |
| log2_ctb_size = ps_sps->i1_log2_ctb_size; |
| ctb_size = (1 << log2_ctb_size); |
| src_strd = ps_sao_ctxt->ps_codec->i4_strd; |
| ps_slice_hdr_base = ps_sao_ctxt->ps_codec->ps_slice_hdr_base; |
| ps_slice_hdr = ps_slice_hdr_base + (ps_sao_ctxt->i4_cur_slice_idx & (MAX_SLICE_HDR_CNT - 1)); |
| |
| pu1_slice_idx = ps_sao_ctxt->pu1_slice_idx; |
| pu1_tile_idx = ps_sao_ctxt->pu1_tile_idx; |
| pu1_src_luma = ps_sao_ctxt->pu1_cur_pic_luma + ((ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sao_ctxt->ps_codec->i4_strd) << (log2_ctb_size)); |
| pu1_src_chroma = ps_sao_ctxt->pu1_cur_pic_chroma + ((ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sao_ctxt->ps_codec->i4_strd / 2) << (log2_ctb_size)); |
| |
| /*Stores the left value for each row ctbs- Needed for column tiles*/ |
| pu1_sao_src_top_left_luma_curr_ctb = ps_sao_ctxt->pu1_sao_src_top_left_luma_curr_ctb + ((ps_sao_ctxt->i4_ctb_y)); |
| pu1_sao_src_top_left_chroma_curr_ctb = ps_sao_ctxt->pu1_sao_src_top_left_chroma_curr_ctb + (2 * (ps_sao_ctxt->i4_ctb_y)); |
| pu1_sao_src_luma_top_left_ctb = ps_sao_ctxt->pu1_sao_src_luma_top_left_ctb + ((ps_sao_ctxt->i4_ctb_y)); |
| pu1_sao_src_chroma_top_left_ctb = ps_sao_ctxt->pu1_sao_src_chroma_top_left_ctb + (2 * ps_sao_ctxt->i4_ctb_y); |
| u1_sao_src_top_left_luma_bot_left = ps_sao_ctxt->u1_sao_src_top_left_luma_bot_left; // + ((ps_sao_ctxt->i4_ctb_y)); |
| pu1_sao_src_top_left_luma_bot_left = ps_sao_ctxt->pu1_sao_src_top_left_luma_bot_left + ((ps_sao_ctxt->i4_ctb_y)); |
| au1_sao_src_top_left_chroma_bot_left = ps_sao_ctxt->au1_sao_src_top_left_chroma_bot_left; // + (2 * ps_sao_ctxt->i4_ctb_y); |
| pu1_sao_src_top_left_chroma_bot_left = ps_sao_ctxt->pu1_sao_src_top_left_chroma_bot_left + (2 * ps_sao_ctxt->i4_ctb_y); |
| pu1_sao_src_top_left_luma_top_right = ps_sao_ctxt->pu1_sao_src_top_left_luma_top_right + ((ps_sao_ctxt->i4_ctb_x)); |
| pu1_sao_src_top_left_chroma_top_right = ps_sao_ctxt->pu1_sao_src_top_left_chroma_top_right + (2 * ps_sao_ctxt->i4_ctb_x); |
| |
| ps_sao = ps_sao_ctxt->ps_pic_sao + ps_sao_ctxt->i4_ctb_x + ps_sao_ctxt->i4_ctb_y * ps_sps->i2_pic_wd_in_ctb; |
| loop_filter_strd = (ps_sps->i2_pic_width_in_luma_samples + 63) >> 6; |
| backup_strd = 2 * MAX_CTB_SIZE; |
| |
| DEBUG_INIT_TMP_BUF(ps_sao_ctxt->pu1_tmp_buf_luma, ps_sao_ctxt->pu1_tmp_buf_chroma); |
| |
| { |
| /* Check the loop filter flags and copy the original values for back up */ |
| /* Luma */ |
| |
| /* Done unconditionally since SAO is done on a shifted CTB and the constituent CTBs |
| * can belong to different slice with their own sao_enable flag */ |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 loop_filter_bit_pos; |
| WORD32 log2_min_cu = 3; |
| WORD32 min_cu = (1 << log2_min_cu); |
| UWORD8 *pu1_src_tmp_luma = pu1_src_luma; |
| WORD32 sao_blk_ht = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_blk_wd = ctb_size; |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + ctb_size - SAO_SHIFT_CTB); |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + ctb_size - SAO_SHIFT_CTB); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| sao_blk_ht += remaining_rows; |
| if(remaining_cols <= SAO_SHIFT_CTB) |
| sao_blk_wd += remaining_cols; |
| |
| pu1_src_tmp_luma -= ps_sao_ctxt->i4_ctb_x ? SAO_SHIFT_CTB : 0; |
| pu1_src_tmp_luma -= ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB * src_strd : 0; |
| |
| pu1_src_backup_luma = ps_sao_ctxt->pu1_tmp_buf_luma; |
| |
| loop_filter_bit_pos = (ps_sao_ctxt->i4_ctb_x << (log2_ctb_size - 3)) + |
| (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 3)) * (loop_filter_strd << 3); |
| if(ps_sao_ctxt->i4_ctb_x > 0) |
| loop_filter_bit_pos -= 1; |
| |
| pu1_no_loop_filter_flag = ps_sao_ctxt->pu1_pic_no_loop_filter_flag + |
| (loop_filter_bit_pos >> 3); |
| |
| for(i = -(ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB : 0) >> log2_min_cu; |
| i < (sao_blk_ht + (min_cu - 1)) >> log2_min_cu; i++) |
| { |
| WORD32 tmp_wd = sao_blk_wd; |
| |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> |
| (loop_filter_bit_pos & 7); |
| u4_no_loop_filter_flag &= (1 << ((tmp_wd + (min_cu - 1)) >> log2_min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| no_loop_filter_enabled_luma = 1; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| pu1_src_tmp_luma += MIN((WORD32)(CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_luma += MIN((WORD32)(CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| } |
| else |
| { |
| for(row = 0; row < min_cu; row++) |
| { |
| for(col = 0; col < MIN((WORD32)(CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); col++) |
| { |
| pu1_src_backup_luma[row * backup_strd + col] = pu1_src_tmp_luma[row * src_strd + col]; |
| } |
| } |
| pu1_src_tmp_luma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_luma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| } |
| } |
| |
| pu1_src_tmp_luma -= sao_blk_wd; |
| pu1_src_backup_luma -= sao_blk_wd; |
| } |
| |
| pu1_src_tmp_luma += (src_strd << log2_min_cu); |
| pu1_src_backup_luma += (backup_strd << log2_min_cu); |
| } |
| } |
| |
| /* Chroma */ |
| |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 loop_filter_bit_pos; |
| WORD32 log2_min_cu = 3; |
| WORD32 min_cu = (1 << log2_min_cu); |
| UWORD8 *pu1_src_tmp_chroma = pu1_src_chroma; |
| WORD32 sao_blk_ht = ctb_size - 2 * SAO_SHIFT_CTB; |
| WORD32 sao_blk_wd = ctb_size; |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + ctb_size - 2 * SAO_SHIFT_CTB); |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + ctb_size - 2 * SAO_SHIFT_CTB); |
| if(remaining_rows <= 2 * SAO_SHIFT_CTB) |
| sao_blk_ht += remaining_rows; |
| if(remaining_cols <= 2 * SAO_SHIFT_CTB) |
| sao_blk_wd += remaining_cols; |
| |
| pu1_src_tmp_chroma -= ps_sao_ctxt->i4_ctb_x ? SAO_SHIFT_CTB * 2 : 0; |
| pu1_src_tmp_chroma -= ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB * src_strd : 0; |
| |
| pu1_src_backup_chroma = ps_sao_ctxt->pu1_tmp_buf_chroma; |
| |
| loop_filter_bit_pos = (ps_sao_ctxt->i4_ctb_x << (log2_ctb_size - 3)) + |
| (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 3)) * (loop_filter_strd << 3); |
| if(ps_sao_ctxt->i4_ctb_x > 0) |
| loop_filter_bit_pos -= 2; |
| |
| pu1_no_loop_filter_flag = ps_sao_ctxt->pu1_pic_no_loop_filter_flag + |
| (loop_filter_bit_pos >> 3); |
| |
| for(i = -(ps_sao_ctxt->i4_ctb_y ? 2 * SAO_SHIFT_CTB : 0) >> log2_min_cu; |
| i < (sao_blk_ht + (min_cu - 1)) >> log2_min_cu; i++) |
| { |
| WORD32 tmp_wd = sao_blk_wd; |
| |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> |
| (loop_filter_bit_pos & 7); |
| u4_no_loop_filter_flag &= (1 << ((tmp_wd + (min_cu - 1)) >> log2_min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| no_loop_filter_enabled_chroma = 1; |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| pu1_src_tmp_chroma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_chroma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| } |
| else |
| { |
| for(row = 0; row < min_cu / 2; row++) |
| { |
| for(col = 0; col < MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); col++) |
| { |
| pu1_src_backup_chroma[row * backup_strd + col] = pu1_src_tmp_chroma[row * src_strd + col]; |
| } |
| } |
| |
| pu1_src_tmp_chroma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_chroma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| } |
| } |
| |
| pu1_src_tmp_chroma -= sao_blk_wd; |
| pu1_src_backup_chroma -= sao_blk_wd; |
| } |
| |
| pu1_src_tmp_chroma += ((src_strd / 2) << log2_min_cu); |
| pu1_src_backup_chroma += ((backup_strd / 2) << log2_min_cu); |
| } |
| } |
| } |
| |
| DEBUG_PROCESS_TMP_BUF(ps_sao_ctxt->pu1_tmp_buf_luma, ps_sao_ctxt->pu1_tmp_buf_chroma); |
| |
| /* Top-left CTB */ |
| if(ps_sao_ctxt->i4_ctb_x > 0 && ps_sao_ctxt->i4_ctb_y > 0) |
| { |
| WORD32 sao_wd_luma = SAO_SHIFT_CTB; |
| WORD32 sao_wd_chroma = 2 * SAO_SHIFT_CTB; |
| WORD32 sao_ht_luma = SAO_SHIFT_CTB; |
| WORD32 sao_ht_chroma = SAO_SHIFT_CTB; |
| |
| WORD32 ctbx_tl_t = 0, ctbx_tl_l = 0, ctbx_tl_r = 0, ctbx_tl_d = 0, ctbx_tl = 0; |
| WORD32 ctby_tl_t = 0, ctby_tl_l = 0, ctby_tl_r = 0, ctby_tl_d = 0, ctby_tl = 0; |
| WORD32 au4_idx_tl[8], idx_tl; |
| |
| slice_header_t *ps_slice_hdr_top_left; |
| { |
| WORD32 top_left_ctb_indx = (ps_sao_ctxt->i4_ctb_y - 1) * ps_sps->i2_pic_wd_in_ctb + |
| (ps_sao_ctxt->i4_ctb_x - 1); |
| ps_slice_hdr_top_left = ps_slice_hdr_base + pu1_slice_idx[top_left_ctb_indx]; |
| } |
| |
| |
| pu1_src_luma -= (sao_wd_luma + sao_ht_luma * src_strd); |
| pu1_src_chroma -= (sao_wd_chroma + sao_ht_chroma * src_strd); |
| ps_sao -= (1 + ps_sps->i2_pic_wd_in_ctb); |
| pu1_src_top_luma = ps_sao_ctxt->pu1_sao_src_top_luma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma; |
| pu1_src_top_chroma = ps_sao_ctxt->pu1_sao_src_top_chroma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma; |
| pu1_src_left_luma = ps_sao_ctxt->pu1_sao_src_left_luma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - sao_ht_luma; |
| pu1_src_left_chroma = ps_sao_ctxt->pu1_sao_src_left_chroma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - (2 * sao_ht_chroma); |
| |
| if(ps_slice_hdr_top_left->i1_slice_sao_luma_flag) |
| { |
| if(0 == ps_sao->b3_y_type_idx) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_luma_top_left_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| |
| } |
| |
| else if(1 == ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ps_codec->s_func_selector.ihevc_sao_band_offset_luma_fptr(pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_luma_top_left_ctb, |
| ps_sao->b5_y_band_pos, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma |
| ); |
| } |
| |
| else // if(2 <= ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_luma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_tl[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| |
| /****************************************************************** |
| * Derive the Top-left CTB's neighbor pixel's slice indices. |
| * |
| * TL_T |
| * 4 _2__5________ |
| * 0 | | | |
| * TL_L | TL | 1 TL_R| |
| * |____|_______|____ |
| * 6|TL_D|7 | | |
| * | 3 | | | |
| * |____|_______| | |
| * | | |
| * | | |
| * |____________| |
| * |
| *****************************************************************/ |
| |
| /*In case of slices, unless we encounter multiple slice/tiled clips, don't enter*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| { |
| /*Assuming that sao shift is uniform along x and y directions*/ |
| if((0 == (1 << log2_ctb_size) - sao_wd_luma) && (ps_sao_ctxt->i4_ctb_y > 1) && (ps_sao_ctxt->i4_ctb_x > 1)) |
| { |
| ctby_tl_t = ps_sao_ctxt->i4_ctb_y - 2; |
| ctbx_tl_l = ps_sao_ctxt->i4_ctb_x - 2; |
| } |
| else if(!(0 == (1 << log2_ctb_size) - sao_wd_luma)) |
| { |
| ctby_tl_t = ps_sao_ctxt->i4_ctb_y - 1; |
| ctbx_tl_l = ps_sao_ctxt->i4_ctb_x - 1; |
| } |
| ctbx_tl_t = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl_l = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_tl_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_tl_r = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_tl_d = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_tl = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl = ps_sao_ctxt->i4_ctb_y - 1; |
| } |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| /*Calculate slice indices for neighbor pixels*/ |
| idx_tl = pu1_slice_idx[ctbx_tl + (ctby_tl * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[2] = au4_idx_tl[4] = *(pu1_slice_idx + ctbx_tl_t + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)); |
| au4_idx_tl[0] = pu1_slice_idx[ctbx_tl_l + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[1] = au4_idx_tl[5] = pu1_slice_idx[ctbx_tl_r + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[3] = au4_idx_tl[6] = pu1_slice_idx[ctbx_tl_d + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[7] = pu1_slice_idx[ctbx_tl_d + 1 + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if((0 == (1 << log2_ctb_size) - sao_wd_luma)) |
| { |
| if(ps_sao_ctxt->i4_ctb_x == 1) |
| { |
| au4_idx_tl[6] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[6] = pu1_slice_idx[(ctbx_tl_d - 1) + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| if(ps_sao_ctxt->i4_ctb_y == 1) |
| { |
| au4_idx_tl[5] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[5] = pu1_slice_idx[(ctbx_tl_l + 1) + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[4] = pu1_slice_idx[(ctbx_tl_t - 1) + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| au4_idx_tl[7] = pu1_slice_idx[(ctbx_tl_d + 1) + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| /* Verify that the neighbor ctbs dont cross pic boundary. |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags. |
| * Hence, for top and left pixels, current ctb flag is checked. For right and down pixels, |
| * the respective pixel's flags are checked |
| */ |
| |
| if((0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma)) |
| { |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + au4_idx_tl[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| if((0 == (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - sao_ht_luma)) |
| { |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[4] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[0] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_tl[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_tl[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_tl[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(au4_idx_tl[5] > idx_tl) |
| { |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + au4_idx_tl[5])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags. |
| * Hence, for top and left pixels, current ctb flag is checked. For right and down pixels, |
| * the respective pixel's flags are checked |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_tl[i] != idx_tl) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| |
| ps_codec->s_func_selector.ihevc_memset_mul_8_fptr((UWORD8 *)au4_idx_tl, 0, 8 * sizeof(WORD32)); |
| } |
| |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| /*Set the boundary arrays*/ |
| /*Calculate tile indices for neighbor pixels*/ |
| idx_tl = pu1_tile_idx[ctbx_tl + (ctby_tl * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[2] = au4_idx_tl[4] = *(pu1_tile_idx + ctbx_tl_t + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)); |
| au4_idx_tl[0] = pu1_tile_idx[ctbx_tl_l + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[1] = au4_idx_tl[5] = pu1_tile_idx[ctbx_tl_r + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[3] = au4_idx_tl[6] = pu1_tile_idx[ctbx_tl_d + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[7] = pu1_tile_idx[ctbx_tl_d + 1 + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if((0 == (1 << log2_ctb_size) - sao_wd_luma)) |
| { |
| if(ps_sao_ctxt->i4_ctb_x == 1) |
| { |
| au4_idx_tl[6] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[6] = pu1_tile_idx[(ctbx_tl_d - 1) + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| if(ps_sao_ctxt->i4_ctb_y == 1) |
| { |
| au4_idx_tl[5] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[5] = pu1_tile_idx[(ctbx_tl_l + 1) + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[4] = pu1_tile_idx[(ctbx_tl_t - 1) + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| au4_idx_tl[7] = pu1_tile_idx[(ctbx_tl_d + 1) + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the tile boundary*/ |
| if(au4_idx_tl[i] != idx_tl) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; //=0 |
| } |
| } |
| } |
| } |
| } |
| |
| |
| /*Set availability flags based on tile and slice boundaries*/ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_luma[i] = 0; |
| } |
| } |
| } |
| } |
| |
| if(0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma) |
| { |
| au1_avail_luma[0] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_wd_in_ctb == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[1] = 0; |
| au1_avail_luma[5] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| //y==1 case |
| if((0 == (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - sao_ht_luma)) |
| { |
| au1_avail_luma[2] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[5] = 0; |
| } |
| if(ps_sps->i2_pic_ht_in_ctb == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[3] = 0; |
| au1_avail_luma[6] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_top_luma[sao_wd_luma]; |
| u1_sao_src_top_left_luma_bot_left = pu1_src_left_luma[sao_ht_luma]; |
| ps_codec->apf_sao_luma[ps_sao->b3_y_type_idx - 2](pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_luma_top_left_ctb, |
| au1_src_top_right, |
| &u1_sao_src_top_left_luma_bot_left, |
| au1_avail_luma, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| } |
| |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_luma_top_left_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| } |
| |
| if(ps_slice_hdr_top_left->i1_slice_sao_chroma_flag) |
| { |
| if(0 == ps_sao->b3_cb_type_idx) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_chroma_top_left_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_chroma_top_left_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| |
| } |
| |
| else if(1 == ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| ps_sao->b5_cr_band_pos, |
| ps_sao->b5_cb_band_pos, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| else |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| ps_sao->b5_cb_band_pos, |
| ps_sao->b5_cr_band_pos, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| } |
| |
| else // if(2 <= ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_chroma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_tl[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| /*In case of slices*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| if((0 == (1 << log2_ctb_size) - sao_wd_chroma) && (ps_sao_ctxt->i4_ctb_y > 1) && (ps_sao_ctxt->i4_ctb_x > 1)) |
| { |
| ctby_tl_t = ps_sao_ctxt->i4_ctb_y - 2; |
| ctbx_tl_l = ps_sao_ctxt->i4_ctb_x - 2; |
| } |
| else if(!(0 == (1 << log2_ctb_size) - sao_wd_chroma)) |
| { |
| ctby_tl_t = ps_sao_ctxt->i4_ctb_y - 1; |
| ctbx_tl_l = ps_sao_ctxt->i4_ctb_x - 1; |
| } |
| ctbx_tl_t = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl_l = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_tl_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_tl_r = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_tl_d = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_tl = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_tl = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| |
| idx_tl = pu1_slice_idx[ctbx_tl + (ctby_tl * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[2] = au4_idx_tl[4] = *(pu1_slice_idx + ctbx_tl_t + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)); |
| au4_idx_tl[0] = pu1_slice_idx[ctbx_tl_l + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[1] = au4_idx_tl[5] = pu1_slice_idx[ctbx_tl_r + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[3] = au4_idx_tl[6] = pu1_slice_idx[ctbx_tl_d + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[7] = pu1_slice_idx[ctbx_tl_d + 1 + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if((0 == (1 << log2_ctb_size) - sao_wd_chroma)) |
| { |
| if(ps_sao_ctxt->i4_ctb_x == 1) |
| { |
| au4_idx_tl[6] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[6] = pu1_slice_idx[(ctbx_tl_d - 1) + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| if(ps_sao_ctxt->i4_ctb_y == 1) |
| { |
| au4_idx_tl[5] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[5] = pu1_slice_idx[(ctbx_tl_l + 1) + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[4] = pu1_slice_idx[(ctbx_tl_t - 1) + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| au4_idx_tl[7] = pu1_slice_idx[(ctbx_tl_d + 1) + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| /* Verify that the neighbor ctbs don't cross pic boundary |
| * Also, the ILF flag belonging to the higher pixel address (between neighbor and current pixels) must be assigned*/ |
| if((0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma)) |
| { |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + au4_idx_tl[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| if((0 == (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) - sao_ht_chroma)) |
| { |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[4] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + au4_idx_tl[5])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[0] = (ps_slice_hdr_base + idx_tl)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_tl[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_tl[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_tl[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_tl[i] != idx_tl) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_tl[i] = 0; |
| } |
| } |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| /*Set the boundary arrays*/ |
| /*Calculate tile indices for neighbor pixels*/ |
| idx_tl = pu1_tile_idx[ctbx_tl + (ctby_tl * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[2] = au4_idx_tl[4] = *(pu1_tile_idx + ctbx_tl_t + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)); |
| au4_idx_tl[0] = pu1_tile_idx[ctbx_tl_l + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[1] = au4_idx_tl[5] = pu1_tile_idx[ctbx_tl_r + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[3] = au4_idx_tl[6] = pu1_tile_idx[ctbx_tl_d + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[7] = pu1_tile_idx[ctbx_tl_d + 1 + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if((0 == (1 << log2_ctb_size) - sao_wd_luma)) |
| { |
| if(ps_sao_ctxt->i4_ctb_x == 1) |
| { |
| au4_idx_tl[6] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[6] = pu1_tile_idx[(ctbx_tl_d - 1) + (ctby_tl_r * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| if(ps_sao_ctxt->i4_ctb_y == 1) |
| { |
| au4_idx_tl[5] = -1; |
| au4_idx_tl[4] = -1; |
| } |
| else |
| { |
| au4_idx_tl[5] = pu1_tile_idx[(ctbx_tl_l + 1) + (ctby_tl_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_tl[4] = pu1_tile_idx[(ctbx_tl_t - 1) + (ctby_tl_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| au4_idx_tl[7] = pu1_tile_idx[(ctbx_tl_d + 1) + (ctby_tl_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the tile boundary*/ |
| if(au4_idx_tl[i] != idx_tl) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; //=0 |
| } |
| } |
| } |
| } |
| } |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_chroma[i] = 0; |
| } |
| } |
| } |
| } |
| |
| if(0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma) |
| { |
| au1_avail_chroma[0] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[6] = 0; |
| } |
| if(ps_sps->i2_pic_wd_in_ctb == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_chroma[1] = 0; |
| au1_avail_chroma[5] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| if(0 == (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) - sao_ht_chroma) |
| { |
| au1_avail_chroma[2] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[5] = 0; |
| } |
| if(ps_sps->i2_pic_ht_in_ctb == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_chroma[3] = 0; |
| au1_avail_chroma[6] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_top_chroma[sao_wd_chroma]; |
| au1_src_top_right[1] = pu1_src_top_chroma[sao_wd_chroma + 1]; |
| au1_sao_src_top_left_chroma_bot_left[0] = pu1_src_left_chroma[2 * sao_ht_chroma]; |
| au1_sao_src_top_left_chroma_bot_left[1] = pu1_src_left_chroma[2 * sao_ht_chroma + 1]; |
| if((ctb_size == 16) && (ps_sao_ctxt->i4_ctb_y != ps_sps->i2_pic_ht_in_ctb - 1)) |
| { |
| au1_sao_src_top_left_chroma_bot_left[0] = pu1_src_chroma[sao_ht_chroma * src_strd - 2]; |
| au1_sao_src_top_left_chroma_bot_left[1] = pu1_src_chroma[sao_ht_chroma * src_strd - 1]; |
| } |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| else |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| } |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_chroma_top_left_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_chroma_top_left_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| } |
| |
| pu1_src_luma += sao_wd_luma + sao_ht_luma * src_strd; |
| pu1_src_chroma += sao_wd_chroma + sao_ht_chroma * src_strd; |
| ps_sao += (1 + ps_sps->i2_pic_wd_in_ctb); |
| } |
| |
| |
| /* Top CTB */ |
| if((ps_sao_ctxt->i4_ctb_y > 0)) |
| { |
| WORD32 sao_wd_luma = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_wd_chroma = ctb_size - 2 * SAO_SHIFT_CTB; |
| WORD32 sao_ht_luma = SAO_SHIFT_CTB; |
| WORD32 sao_ht_chroma = SAO_SHIFT_CTB; |
| |
| WORD32 ctbx_t_t = 0, ctbx_t_l = 0, ctbx_t_r = 0, ctbx_t_d = 0, ctbx_t = 0; |
| WORD32 ctby_t_t = 0, ctby_t_l = 0, ctby_t_r = 0, ctby_t_d = 0, ctby_t = 0; |
| WORD32 au4_idx_t[8], idx_t; |
| |
| WORD32 remaining_cols; |
| |
| slice_header_t *ps_slice_hdr_top; |
| { |
| WORD32 top_ctb_indx = (ps_sao_ctxt->i4_ctb_y - 1) * ps_sps->i2_pic_wd_in_ctb + |
| (ps_sao_ctxt->i4_ctb_x); |
| ps_slice_hdr_top = ps_slice_hdr_base + pu1_slice_idx[top_ctb_indx]; |
| } |
| |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + sao_wd_luma); |
| if(remaining_cols <= SAO_SHIFT_CTB) |
| { |
| sao_wd_luma += remaining_cols; |
| } |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + sao_wd_chroma); |
| if(remaining_cols <= 2 * SAO_SHIFT_CTB) |
| { |
| sao_wd_chroma += remaining_cols; |
| } |
| |
| pu1_src_luma -= (sao_ht_luma * src_strd); |
| pu1_src_chroma -= (sao_ht_chroma * src_strd); |
| ps_sao -= (ps_sps->i2_pic_wd_in_ctb); |
| pu1_src_top_luma = ps_sao_ctxt->pu1_sao_src_top_luma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_top_chroma = ps_sao_ctxt->pu1_sao_src_top_chroma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_left_luma = ps_sao_ctxt->pu1_sao_src_left_luma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - sao_ht_chroma; |
| pu1_src_left_chroma = ps_sao_ctxt->pu1_sao_src_left_chroma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - (2 * sao_ht_chroma); |
| |
| if(0 != sao_wd_luma) |
| { |
| if(ps_slice_hdr_top->i1_slice_sao_luma_flag) |
| { |
| if(0 == ps_sao->b3_y_type_idx) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_luma_top_left_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| } |
| |
| else if(1 == ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ps_codec->s_func_selector.ihevc_sao_band_offset_luma_fptr(pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_luma_top_left_ctb, |
| ps_sao->b5_y_band_pos, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma |
| ); |
| } |
| |
| else // if(2 <= ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ps_codec->s_func_selector.ihevc_memset_mul_8_fptr(au1_avail_luma, 255, 8); |
| ps_codec->s_func_selector.ihevc_memset_mul_8_fptr(au1_tile_slice_boundary, 0, 8); |
| ps_codec->s_func_selector.ihevc_memset_mul_8_fptr((UWORD8 *)au4_idx_t, 0, 8 * sizeof(WORD32)); |
| |
| for(i = 0; i < 8; i++) |
| { |
| |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| /****************************************************************** |
| * Derive the Top-left CTB's neighbor pixel's slice indices. |
| * |
| * T_T |
| * ____________ |
| * | | | |
| * | T_L| T |T_R |
| * | | ______|____ |
| * | | T_D | | |
| * | | | | |
| * |____|_______| | |
| * | | |
| * | | |
| * |____________| |
| * |
| *****************************************************************/ |
| |
| /*In case of slices*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| |
| ctbx_t_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_t_l = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_r = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_d = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| /*Calculate neighbor ctb slice indices*/ |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_t[0] = -1; |
| au4_idx_t[6] = -1; |
| au4_idx_t[4] = -1; |
| } |
| else |
| { |
| au4_idx_t[0] = au4_idx_t[4] = pu1_slice_idx[ctbx_t_l + (ctby_t_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[6] = pu1_slice_idx[ctbx_t_d - 1 + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_t = pu1_slice_idx[ctbx_t + (ctby_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[2] = au4_idx_t[5] = pu1_slice_idx[ctbx_t_t + (ctby_t_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[1] = pu1_slice_idx[ctbx_t_r + (ctby_t_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[3] = au4_idx_t[7] = pu1_slice_idx[ctbx_t_d + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| /*Verify that the neighbor ctbs don't cross pic boundary.*/ |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| au4_ilf_across_tile_slice_enable[0] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[0] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + au4_idx_t[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| |
| |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_t[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_t[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_t[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(au4_idx_t[6] < idx_t) |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_t[i] != idx_t) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| /*Check for slice flag at such boundaries*/ |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_t[i] = 0; |
| } |
| } |
| |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| /*Calculate neighbor ctb slice indices*/ |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_t[0] = -1; |
| au4_idx_t[6] = -1; |
| au4_idx_t[4] = -1; |
| } |
| else |
| { |
| au4_idx_t[0] = au4_idx_t[4] = pu1_tile_idx[ctbx_t_l + (ctby_t_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[6] = pu1_tile_idx[ctbx_t_d - 1 + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_t = pu1_tile_idx[ctbx_t + (ctby_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[2] = au4_idx_t[5] = pu1_tile_idx[ctbx_t_t + (ctby_t_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[1] = pu1_tile_idx[ctbx_t_r + (ctby_t_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[3] = au4_idx_t[7] = pu1_tile_idx[ctbx_t_d + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the tile boundary*/ |
| if(au4_idx_t[i] != idx_t) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; |
| } |
| } |
| } |
| } |
| } |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_luma[i] = 0; |
| } |
| } |
| } |
| } |
| |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[0] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_width_in_luma_samples - (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) <= sao_wd_luma) |
| { |
| au1_avail_luma[1] = 0; |
| au1_avail_luma[5] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| if(0 == (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) - sao_ht_luma) |
| { |
| au1_avail_luma[2] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_ht_in_ctb == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[3] = 0; |
| au1_avail_luma[6] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_sao_src_top_left_luma_top_right[0]; |
| u1_sao_src_top_left_luma_bot_left = pu1_src_luma[sao_ht_luma * src_strd - 1]; |
| ps_codec->apf_sao_luma[ps_sao->b3_y_type_idx - 2](pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_luma_top_left_ctb, |
| au1_src_top_right, |
| &u1_sao_src_top_left_luma_bot_left, |
| au1_avail_luma, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_luma_top_left_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| } |
| } |
| |
| if(0 != sao_wd_chroma) |
| { |
| if(ps_slice_hdr_top->i1_slice_sao_chroma_flag) |
| { |
| if(0 == ps_sao->b3_cb_type_idx) |
| { |
| |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_chroma_top_left_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_chroma_top_left_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| |
| } |
| |
| else if(1 == ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| ps_sao->b5_cr_band_pos, |
| ps_sao->b5_cb_band_pos, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| else |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| ps_sao->b5_cb_band_pos, |
| ps_sao->b5_cr_band_pos, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| } |
| else // if(2 <= ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_chroma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_t[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| ctbx_t_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_t_l = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_r = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_t_d = ps_sao_ctxt->i4_ctb_x; |
| ctby_t_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_t[0] = -1; |
| au4_idx_t[6] = -1; |
| au4_idx_t[4] = -1; |
| } |
| else |
| { |
| au4_idx_t[0] = au4_idx_t[4] = pu1_slice_idx[ctbx_t_l + (ctby_t_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[6] = pu1_slice_idx[ctbx_t_d - 1 + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_t = pu1_slice_idx[ctbx_t + (ctby_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[2] = au4_idx_t[5] = pu1_slice_idx[ctbx_t_t + (ctby_t_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[1] = pu1_slice_idx[ctbx_t_r + (ctby_t_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[3] = au4_idx_t[7] = pu1_slice_idx[ctbx_t_d + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| /*Verify that the neighbor ctbs don't cross pic boundary.*/ |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| au4_ilf_across_tile_slice_enable[0] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[0] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + au4_idx_t[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + au4_idx_t[5])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_t[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_t[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_t[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(idx_t > au4_idx_t[6]) |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + idx_t)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_t[i] != idx_t) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| /*Indicates that the neighbour belongs to same/dependent slice*/ |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_t[i] = 0; |
| } |
| } |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| /*Calculate neighbor ctb slice indices*/ |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_t[0] = -1; |
| au4_idx_t[6] = -1; |
| au4_idx_t[4] = -1; |
| } |
| else |
| { |
| au4_idx_t[0] = au4_idx_t[4] = pu1_tile_idx[ctbx_t_l + (ctby_t_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[6] = pu1_tile_idx[ctbx_t_d - 1 + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_t = pu1_tile_idx[ctbx_t + (ctby_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[2] = au4_idx_t[5] = pu1_tile_idx[ctbx_t_t + (ctby_t_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[1] = pu1_tile_idx[ctbx_t_r + (ctby_t_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_t[3] = au4_idx_t[7] = pu1_tile_idx[ctbx_t_d + (ctby_t_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the tile boundary*/ |
| if(au4_idx_t[i] != idx_t) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; |
| } |
| } |
| } |
| } |
| } |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_chroma[i] = 0; |
| } |
| } |
| |
| } |
| } |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_chroma[0] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_width_in_luma_samples - (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) <= sao_wd_chroma) |
| { |
| au1_avail_chroma[1] = 0; |
| au1_avail_chroma[5] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| if(0 == (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) - sao_ht_chroma) |
| { |
| au1_avail_chroma[2] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_ht_in_ctb == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_chroma[3] = 0; |
| au1_avail_chroma[6] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_sao_src_top_left_chroma_top_right[0]; |
| au1_src_top_right[1] = pu1_sao_src_top_left_chroma_top_right[1]; |
| au1_sao_src_top_left_chroma_bot_left[0] = pu1_src_chroma[sao_ht_chroma * src_strd - 2]; |
| au1_sao_src_top_left_chroma_bot_left[1] = pu1_src_chroma[sao_ht_chroma * src_strd - 1]; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| else |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_chroma_top_left_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| } |
| |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_chroma_top_left_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_chroma_top_left_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| } |
| } |
| |
| pu1_src_luma += sao_ht_luma * src_strd; |
| pu1_src_chroma += sao_ht_chroma * src_strd; |
| ps_sao += (ps_sps->i2_pic_wd_in_ctb); |
| } |
| |
| /* Left CTB */ |
| if(ps_sao_ctxt->i4_ctb_x > 0) |
| { |
| WORD32 sao_wd_luma = SAO_SHIFT_CTB; |
| WORD32 sao_wd_chroma = 2 * SAO_SHIFT_CTB; |
| WORD32 sao_ht_luma = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_ht_chroma = ctb_size / 2 - SAO_SHIFT_CTB; |
| |
| WORD32 ctbx_l_t = 0, ctbx_l_l = 0, ctbx_l_r = 0, ctbx_l_d = 0, ctbx_l = 0; |
| WORD32 ctby_l_t = 0, ctby_l_l = 0, ctby_l_r = 0, ctby_l_d = 0, ctby_l = 0; |
| WORD32 au4_idx_l[8], idx_l; |
| |
| WORD32 remaining_rows; |
| slice_header_t *ps_slice_hdr_left; |
| { |
| WORD32 left_ctb_indx = (ps_sao_ctxt->i4_ctb_y) * ps_sps->i2_pic_wd_in_ctb + |
| (ps_sao_ctxt->i4_ctb_x - 1); |
| ps_slice_hdr_left = ps_slice_hdr_base + pu1_slice_idx[left_ctb_indx]; |
| } |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + sao_ht_luma); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| { |
| sao_ht_luma += remaining_rows; |
| } |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples / 2 - ((ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) + sao_ht_chroma); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| { |
| sao_ht_chroma += remaining_rows; |
| } |
| |
| pu1_src_luma -= sao_wd_luma; |
| pu1_src_chroma -= sao_wd_chroma; |
| ps_sao -= 1; |
| pu1_src_top_luma = ps_sao_ctxt->pu1_sao_src_top_luma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma; |
| pu1_src_top_chroma = ps_sao_ctxt->pu1_sao_src_top_chroma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma; |
| pu1_src_left_luma = ps_sao_ctxt->pu1_sao_src_left_luma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| pu1_src_left_chroma = ps_sao_ctxt->pu1_sao_src_left_chroma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| |
| |
| if(0 != sao_ht_luma) |
| { |
| if(ps_slice_hdr_left->i1_slice_sao_luma_flag) |
| { |
| if(0 == ps_sao->b3_y_type_idx) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| /*Update in next location*/ |
| pu1_sao_src_top_left_luma_curr_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| } |
| |
| else if(1 == ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ps_codec->s_func_selector.ihevc_sao_band_offset_luma_fptr(pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_top_left_luma_curr_ctb, |
| ps_sao->b5_y_band_pos, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma |
| ); |
| } |
| |
| else // if(2 <= ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_luma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_l[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| /****************************************************************** |
| * Derive the Top-left CTB's neighbour pixel's slice indices. |
| * |
| * |
| * ____________ |
| * | | | |
| * | L_T| | |
| * |____|_______|____ |
| * | | | | |
| * L_L | L | L_R | | |
| * |____|_______| | |
| * | | |
| * L_D | | |
| * |____________| |
| * |
| *****************************************************************/ |
| |
| /*In case of slices or tiles*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| ctbx_l_t = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_l_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_l = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_l_r = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l_d = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l = ps_sao_ctxt->i4_ctb_y; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_l[2] = -1; |
| au4_idx_l[4] = -1; |
| au4_idx_l[5] = -1; |
| } |
| else |
| { |
| au4_idx_l[2] = au4_idx_l[4] = pu1_slice_idx[ctbx_l_t + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[5] = pu1_slice_idx[ctbx_l_t + 1 + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_l = au4_idx_l[6] = pu1_slice_idx[ctbx_l + (ctby_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[0] = pu1_slice_idx[ctbx_l_l + (ctby_l_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[1] = au4_idx_l[7] = pu1_slice_idx[ctbx_l_r + (ctby_l_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[3] = pu1_slice_idx[ctbx_l_d + (ctby_l_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| /*Verify that the neighbor ctbs don't cross pic boundary.*/ |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_ilf_across_tile_slice_enable[2] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_l)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[5] = au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[2]; |
| |
| } |
| //TODO: ILF flag checks for [0] and [6] is missing. |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_l[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_l[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_l[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(idx_l < au4_idx_l[5]) |
| { |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + au4_idx_l[5])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_l[i] != idx_l) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_l[i] = 0; |
| } |
| } |
| |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_l[2] = -1; |
| au4_idx_l[4] = -1; |
| au4_idx_l[5] = -1; |
| } |
| else |
| { |
| au4_idx_l[2] = au4_idx_l[4] = pu1_tile_idx[ctbx_l_t + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[5] = pu1_tile_idx[ctbx_l_t + 1 + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| idx_l = au4_idx_l[6] = pu1_tile_idx[ctbx_l + (ctby_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[0] = pu1_tile_idx[ctbx_l_l + (ctby_l_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[1] = au4_idx_l[7] = pu1_tile_idx[ctbx_l_r + (ctby_l_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[3] = pu1_tile_idx[ctbx_l_d + (ctby_l_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_l[i] != idx_l) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; |
| } |
| } |
| } |
| } |
| } |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_luma[i] = 0; |
| } |
| } |
| } |
| } |
| if(0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_luma) |
| { |
| au1_avail_luma[0] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[6] = 0; |
| } |
| if(ps_sps->i2_pic_wd_in_ctb == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[1] = 0; |
| au1_avail_luma[5] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[2] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_height_in_luma_samples - (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) <= sao_ht_luma) |
| { |
| au1_avail_luma[3] = 0; |
| au1_avail_luma[6] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_top_luma[sao_wd_luma]; |
| u1_sao_src_top_left_luma_bot_left = pu1_sao_src_top_left_luma_bot_left[0]; |
| ps_codec->apf_sao_luma[ps_sao->b3_y_type_idx - 2](pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_top_left_luma_curr_ctb, |
| au1_src_top_right, |
| &u1_sao_src_top_left_luma_bot_left, |
| au1_avail_luma, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| /*Update in next location*/ |
| pu1_sao_src_top_left_luma_curr_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| } |
| } |
| |
| if(0 != sao_ht_chroma) |
| { |
| if(ps_slice_hdr_left->i1_slice_sao_chroma_flag) |
| { |
| if(0 == ps_sao->b3_cb_type_idx) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_top_left_chroma_curr_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_top_left_chroma_curr_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| } |
| |
| else if(1 == ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| ps_sao->b5_cr_band_pos, |
| ps_sao->b5_cb_band_pos, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| else |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| ps_sao->b5_cb_band_pos, |
| ps_sao->b5_cr_band_pos, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| } |
| |
| else // if(2 <= ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_chroma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_l[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| /*In case of slices*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| ctbx_l_t = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_l_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_l = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_l_r = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l_d = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_l = ps_sao_ctxt->i4_ctb_y; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_l[2] = -1; |
| au4_idx_l[4] = -1; |
| au4_idx_l[5] = -1; |
| } |
| else |
| { |
| au4_idx_l[2] = au4_idx_l[4] = pu1_slice_idx[ctbx_l_t + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[5] = pu1_slice_idx[ctbx_l_t + 1 + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_l = au4_idx_l[6] = pu1_slice_idx[ctbx_l + (ctby_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[0] = pu1_slice_idx[ctbx_l_l + (ctby_l_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[1] = au4_idx_l[7] = pu1_slice_idx[ctbx_l_r + (ctby_l_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[3] = pu1_slice_idx[ctbx_l_d + (ctby_l_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| /*Verify that the neighbour ctbs dont cross pic boundary.*/ |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_ilf_across_tile_slice_enable[2] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_l)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[5] = au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[2]; |
| } |
| |
| if(au4_idx_l[5] > idx_l) |
| { |
| au4_ilf_across_tile_slice_enable[5] = (ps_slice_hdr_base + au4_idx_l[5])->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| // au4_ilf_across_tile_slice_enable[5] = au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_l)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_l[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_l[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_l[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_l[i] != idx_l) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_l[i] = 0; |
| } |
| } |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_l[2] = -1; |
| au4_idx_l[4] = -1; |
| au4_idx_l[5] = -1; |
| } |
| else |
| { |
| au4_idx_l[2] = au4_idx_l[4] = pu1_tile_idx[ctbx_l_t + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[5] = pu1_tile_idx[ctbx_l_t + 1 + (ctby_l_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| idx_l = au4_idx_l[6] = pu1_tile_idx[ctbx_l + (ctby_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[0] = pu1_tile_idx[ctbx_l_l + (ctby_l_l * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[1] = au4_idx_l[7] = pu1_tile_idx[ctbx_l_r + (ctby_l_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_l[3] = pu1_tile_idx[ctbx_l_d + (ctby_l_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_l[i] != idx_l) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; //=0 |
| } |
| } |
| } |
| } |
| } |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_chroma[i] = 0; |
| } |
| } |
| } |
| } |
| if(0 == (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) - sao_wd_chroma) |
| { |
| au1_avail_chroma[0] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_wd_in_ctb == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_chroma[1] = 0; |
| au1_avail_chroma[5] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_chroma[2] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_height_in_luma_samples / 2 - (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) <= sao_ht_chroma) |
| { |
| au1_avail_chroma[3] = 0; |
| au1_avail_chroma[6] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_top_chroma[sao_wd_chroma]; |
| au1_src_top_right[1] = pu1_src_top_chroma[sao_wd_chroma + 1]; |
| au1_src_bot_left[0] = pu1_sao_src_top_left_chroma_bot_left[0]; |
| au1_src_bot_left[1] = pu1_sao_src_top_left_chroma_bot_left[1]; |
| //au1_src_bot_left[0] = pu1_src_chroma[sao_ht_chroma * src_strd - 2]; |
| //au1_src_bot_left[1] = pu1_src_chroma[sao_ht_chroma * src_strd - 1]; |
| if((ctb_size == 16) && (ps_sao_ctxt->i4_ctb_x != ps_sps->i2_pic_wd_in_ctb - 1)) |
| { |
| au1_src_top_right[0] = pu1_src_chroma[sao_wd_chroma - src_strd]; |
| au1_src_top_right[1] = pu1_src_chroma[sao_wd_chroma - src_strd + 1]; |
| } |
| |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| au1_src_top_right, |
| au1_src_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| else |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| au1_src_top_right, |
| au1_src_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| } |
| |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_top_left_chroma_curr_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_top_left_chroma_curr_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| } |
| |
| } |
| pu1_src_luma += sao_wd_luma; |
| pu1_src_chroma += sao_wd_chroma; |
| ps_sao += 1; |
| } |
| |
| |
| /* Current CTB */ |
| { |
| WORD32 sao_wd_luma = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_wd_chroma = ctb_size - SAO_SHIFT_CTB * 2; |
| WORD32 sao_ht_luma = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_ht_chroma = ctb_size / 2 - SAO_SHIFT_CTB; |
| WORD32 ctbx_c_t = 0, ctbx_c_l = 0, ctbx_c_r = 0, ctbx_c_d = 0, ctbx_c = 0; |
| WORD32 ctby_c_t = 0, ctby_c_l = 0, ctby_c_r = 0, ctby_c_d = 0, ctby_c = 0; |
| WORD32 au4_idx_c[8], idx_c; |
| |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + sao_wd_luma); |
| if(remaining_cols <= SAO_SHIFT_CTB) |
| { |
| sao_wd_luma += remaining_cols; |
| } |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + sao_wd_chroma); |
| if(remaining_cols <= 2 * SAO_SHIFT_CTB) |
| { |
| sao_wd_chroma += remaining_cols; |
| } |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + sao_ht_luma); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| { |
| sao_ht_luma += remaining_rows; |
| } |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples / 2 - ((ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) + sao_ht_chroma); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| { |
| sao_ht_chroma += remaining_rows; |
| } |
| |
| pu1_src_top_luma = ps_sao_ctxt->pu1_sao_src_top_luma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_top_chroma = ps_sao_ctxt->pu1_sao_src_top_chroma + (ps_sao_ctxt->i4_ctb_x << log2_ctb_size); |
| pu1_src_left_luma = ps_sao_ctxt->pu1_sao_src_left_luma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| pu1_src_left_chroma = ps_sao_ctxt->pu1_sao_src_left_chroma + (ps_sao_ctxt->i4_ctb_y << log2_ctb_size); |
| |
| if((0 != sao_wd_luma) && (0 != sao_ht_luma)) |
| { |
| if(ps_sao_ctxt->ps_slice_hdr->i1_slice_sao_luma_flag) |
| { |
| if(0 == ps_sao->b3_y_type_idx) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_top_left_luma_curr_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| pu1_sao_src_top_left_luma_top_right[0] = pu1_src_luma[(sao_ht_luma - 1) * src_strd + sao_wd_luma]; |
| |
| } |
| |
| else if(1 == ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| ps_codec->s_func_selector.ihevc_sao_band_offset_luma_fptr(pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_top_left_luma_curr_ctb, |
| ps_sao->b5_y_band_pos, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma |
| ); |
| } |
| |
| else // if(2 <= ps_sao->b3_y_type_idx) |
| { |
| ai1_offset_y[1] = ps_sao->b4_y_offset_1; |
| ai1_offset_y[2] = ps_sao->b4_y_offset_2; |
| ai1_offset_y[3] = ps_sao->b4_y_offset_3; |
| ai1_offset_y[4] = ps_sao->b4_y_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_luma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_c[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| /****************************************************************** |
| * Derive the Top-left CTB's neighbour pixel's slice indices. |
| * |
| * |
| * ____________ |
| * | | | |
| * | | C_T | |
| * |____|_______|____ |
| * | | | | |
| * | C_L| C | C_R| |
| * |____|_______| | |
| * | C_D | |
| * | | |
| * |____________| |
| * |
| *****************************************************************/ |
| |
| /*In case of slices*/ |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| ctbx_c_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_c_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_c_l = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_r = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c_d = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c = ps_sao_ctxt->i4_ctb_x; |
| ctby_c = ps_sao_ctxt->i4_ctb_y; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_c[6] = -1; |
| au4_idx_c[0] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[0] = au4_idx_c[6] = pu1_slice_idx[ctbx_c_l + (ctby_c_l * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_c[2] = -1; |
| au4_idx_c[5] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[4] = pu1_slice_idx[ctbx_c_t - 1 + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[2] = au4_idx_c[5] = pu1_slice_idx[ctbx_c_t + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_c = pu1_slice_idx[ctbx_c + (ctby_c * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[1] = au4_idx_c[7] = pu1_slice_idx[ctbx_c_r + (ctby_c_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[3] = pu1_slice_idx[ctbx_c_d + (ctby_c_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| au4_ilf_across_tile_slice_enable[0] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + au4_idx_c[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[0] = (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag;; |
| } |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_ilf_across_tile_slice_enable[2] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[2] = (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[5] = au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[2]; |
| } |
| au4_ilf_across_tile_slice_enable[1] = (ps_slice_hdr_base + au4_idx_c[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] = (ps_slice_hdr_base + au4_idx_c[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] = (ps_slice_hdr_base + au4_idx_c[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(au4_idx_c[6] < idx_c) |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_c[i] != idx_c) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_c[i] = 0; |
| } |
| } |
| |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_c[6] = -1; |
| au4_idx_c[0] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[0] = au4_idx_c[6] = pu1_tile_idx[ctbx_c_l + (ctby_c_l * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_c[2] = -1; |
| au4_idx_c[5] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[4] = pu1_tile_idx[ctbx_c_t - 1 + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[2] = au4_idx_c[5] = pu1_tile_idx[ctbx_c_t + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_c = pu1_tile_idx[ctbx_c + (ctby_c * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[1] = au4_idx_c[7] = pu1_tile_idx[ctbx_c_r + (ctby_c_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[3] = pu1_tile_idx[ctbx_c_d + (ctby_c_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_c[i] != idx_c) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; //=0 |
| } |
| } |
| } |
| } |
| } |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_luma[i] = 0; |
| } |
| } |
| |
| } |
| } |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_luma[0] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_width_in_luma_samples - (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) <= sao_wd_luma) |
| { |
| au1_avail_luma[1] = 0; |
| au1_avail_luma[5] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_luma[2] = 0; |
| au1_avail_luma[4] = 0; |
| au1_avail_luma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_height_in_luma_samples - (ps_sao_ctxt->i4_ctb_y << log2_ctb_size) <= sao_ht_luma) |
| { |
| au1_avail_luma[3] = 0; |
| au1_avail_luma[6] = 0; |
| au1_avail_luma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_luma[sao_wd_luma - src_strd]; |
| u1_sao_src_top_left_luma_bot_left = pu1_src_luma[sao_ht_luma * src_strd - 1]; |
| |
| ps_codec->apf_sao_luma[ps_sao->b3_y_type_idx - 2](pu1_src_luma, |
| src_strd, |
| pu1_src_left_luma, |
| pu1_src_top_luma, |
| pu1_sao_src_top_left_luma_curr_ctb, |
| au1_src_top_right, |
| &u1_sao_src_top_left_luma_bot_left, |
| au1_avail_luma, |
| ai1_offset_y, |
| sao_wd_luma, |
| sao_ht_luma); |
| } |
| pu1_sao_src_top_left_luma_top_right[0] = pu1_src_luma[(sao_ht_luma - 1) * src_strd + sao_wd_luma]; |
| pu1_sao_src_top_left_luma_bot_left[0] = pu1_src_luma[(sao_ht_luma)*src_strd + sao_wd_luma - 1]; |
| } |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| /* Update left, top and top-left */ |
| for(row = 0; row < sao_ht_luma; row++) |
| { |
| pu1_src_left_luma[row] = pu1_src_luma[row * src_strd + (sao_wd_luma - 1)]; |
| } |
| pu1_sao_src_top_left_luma_curr_ctb[0] = pu1_src_top_luma[sao_wd_luma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_luma, &pu1_src_luma[(sao_ht_luma - 1) * src_strd], sao_wd_luma); |
| |
| pu1_sao_src_top_left_luma_top_right[0] = pu1_src_luma[(sao_ht_luma - 1) * src_strd + sao_wd_luma]; |
| } |
| } |
| |
| if((0 != sao_wd_chroma) && (0 != sao_ht_chroma)) |
| { |
| if(ps_sao_ctxt->ps_slice_hdr->i1_slice_sao_chroma_flag) |
| { |
| if(0 == ps_sao->b3_cb_type_idx) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_top_left_chroma_curr_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_top_left_chroma_curr_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| |
| pu1_sao_src_top_left_chroma_top_right[0] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma]; |
| pu1_sao_src_top_left_chroma_top_right[1] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma + 1]; |
| } |
| |
| else if(1 == ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| ps_sao->b5_cr_band_pos, |
| ps_sao->b5_cb_band_pos, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| else |
| { |
| ps_codec->s_func_selector.ihevc_sao_band_offset_chroma_fptr(pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| ps_sao->b5_cb_band_pos, |
| ps_sao->b5_cr_band_pos, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma |
| ); |
| } |
| } |
| |
| else // if(2 <= ps_sao->b3_cb_type_idx) |
| { |
| ai1_offset_cb[1] = ps_sao->b4_cb_offset_1; |
| ai1_offset_cb[2] = ps_sao->b4_cb_offset_2; |
| ai1_offset_cb[3] = ps_sao->b4_cb_offset_3; |
| ai1_offset_cb[4] = ps_sao->b4_cb_offset_4; |
| |
| ai1_offset_cr[1] = ps_sao->b4_cr_offset_1; |
| ai1_offset_cr[2] = ps_sao->b4_cr_offset_2; |
| ai1_offset_cr[3] = ps_sao->b4_cr_offset_3; |
| ai1_offset_cr[4] = ps_sao->b4_cr_offset_4; |
| |
| for(i = 0; i < 8; i++) |
| { |
| au1_avail_chroma[i] = 255; |
| au1_tile_slice_boundary[i] = 0; |
| au4_idx_c[i] = 0; |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| { |
| if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| ctbx_c_t = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_t = ps_sao_ctxt->i4_ctb_y - 1; |
| |
| ctbx_c_l = ps_sao_ctxt->i4_ctb_x - 1; |
| ctby_c_l = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c_r = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_r = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c_d = ps_sao_ctxt->i4_ctb_x; |
| ctby_c_d = ps_sao_ctxt->i4_ctb_y; |
| |
| ctbx_c = ps_sao_ctxt->i4_ctb_x; |
| ctby_c = ps_sao_ctxt->i4_ctb_y; |
| |
| if(!ps_slice_hdr->i1_first_slice_in_pic_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_c[0] = -1; |
| au4_idx_c[4] = -1; |
| au4_idx_c[6] = -1; |
| } |
| else |
| { |
| au4_idx_c[0] = au4_idx_c[6] = pu1_slice_idx[ctbx_c_l + (ctby_c_l * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_c[2] = -1; |
| au4_idx_c[4] = -1; |
| au4_idx_c[5] = -1; |
| } |
| else |
| { |
| au4_idx_c[2] = au4_idx_c[5] = pu1_slice_idx[ctbx_c_t + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[4] = pu1_slice_idx[ctbx_c_t - 1 + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_c = pu1_slice_idx[ctbx_c + (ctby_c * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[1] = au4_idx_c[7] = pu1_slice_idx[ctbx_c_r + (ctby_c_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[3] = pu1_slice_idx[ctbx_c_d + (ctby_c_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_ilf_across_tile_slice_enable[0] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[6] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[6] &= (ps_slice_hdr_base + au4_idx_c[6])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[0] &= (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_ilf_across_tile_slice_enable[2] = 0; |
| au4_ilf_across_tile_slice_enable[4] = 0; |
| au4_ilf_across_tile_slice_enable[5] = 0; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[2] &= (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[5] = au4_ilf_across_tile_slice_enable[4] = au4_ilf_across_tile_slice_enable[2]; |
| } |
| |
| au4_ilf_across_tile_slice_enable[1] &= (ps_slice_hdr_base + au4_idx_c[1])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[3] &= (ps_slice_hdr_base + au4_idx_c[3])->i1_slice_loop_filter_across_slices_enabled_flag; |
| au4_ilf_across_tile_slice_enable[7] &= (ps_slice_hdr_base + au4_idx_c[7])->i1_slice_loop_filter_across_slices_enabled_flag; |
| |
| if(idx_c > au4_idx_c[6]) |
| { |
| au4_ilf_across_tile_slice_enable[6] = (ps_slice_hdr_base + idx_c)->i1_slice_loop_filter_across_slices_enabled_flag; |
| } |
| |
| /* |
| * Between each neighbor and the current CTB, the i1_slice_loop_filter_across_slices_enabled_flag |
| * of the pixel having a greater address is checked. Accordingly, set the availability flags |
| */ |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_c[i] != idx_c) |
| { |
| au1_tile_slice_boundary[i] = 1; |
| } |
| else |
| { |
| au4_ilf_across_tile_slice_enable[i] = 1; |
| } |
| } |
| /*Reset indices*/ |
| for(i = 0; i < 8; i++) |
| { |
| au4_idx_c[i] = 0; |
| } |
| } |
| |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| /* Calculate availability flags at slice boundary */ |
| if(((ps_tile->u1_pos_x == ps_sao_ctxt->i4_ctb_x) || (ps_tile->u1_pos_y == ps_sao_ctxt->i4_ctb_y)) && (!((0 == ps_tile->u1_pos_x) && (0 == ps_tile->u1_pos_y)))) |
| { |
| /*If ilf across tiles is enabled, boundary availability for tiles is not checked. */ |
| if(!ps_pps->i1_loop_filter_across_tiles_enabled_flag) |
| { |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au4_idx_c[6] = -1; |
| au4_idx_c[0] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[0] = au4_idx_c[6] = pu1_tile_idx[ctbx_c_l + (ctby_c_l * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au4_idx_c[2] = -1; |
| au4_idx_c[5] = -1; |
| au4_idx_c[4] = -1; |
| } |
| else |
| { |
| au4_idx_c[4] = pu1_tile_idx[ctbx_c_t - 1 + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[2] = au4_idx_c[5] = pu1_tile_idx[ctbx_c_t + (ctby_c_t * ps_sps->i2_pic_wd_in_ctb)]; |
| } |
| idx_c = pu1_tile_idx[ctbx_c + (ctby_c * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[1] = au4_idx_c[7] = pu1_tile_idx[ctbx_c_r + (ctby_c_r * ps_sps->i2_pic_wd_in_ctb)]; |
| au4_idx_c[3] = pu1_tile_idx[ctbx_c_d + (ctby_c_d * ps_sps->i2_pic_wd_in_ctb)]; |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if(au4_idx_c[i] != idx_c) |
| { |
| au1_tile_slice_boundary[i] |= 1; |
| au4_ilf_across_tile_slice_enable[i] &= ps_pps->i1_loop_filter_across_tiles_enabled_flag; //=0 |
| } |
| } |
| } |
| } |
| } |
| |
| for(i = 0; i < 8; i++) |
| { |
| /*Sets the edges that lie on the slice/tile boundary*/ |
| if((au1_tile_slice_boundary[i]) && !(au4_ilf_across_tile_slice_enable[i])) |
| { |
| au1_avail_chroma[i] = 0; |
| } |
| } |
| } |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_x) |
| { |
| au1_avail_chroma[0] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[6] = 0; |
| } |
| |
| if(ps_sps->i2_pic_width_in_luma_samples - (ps_sao_ctxt->i4_ctb_x << log2_ctb_size) <= sao_wd_chroma) |
| { |
| au1_avail_chroma[1] = 0; |
| au1_avail_chroma[5] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| if(0 == ps_sao_ctxt->i4_ctb_y) |
| { |
| au1_avail_chroma[2] = 0; |
| au1_avail_chroma[4] = 0; |
| au1_avail_chroma[5] = 0; |
| } |
| |
| if(ps_sps->i2_pic_height_in_luma_samples / 2 - (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 1)) <= sao_ht_chroma) |
| { |
| au1_avail_chroma[3] = 0; |
| au1_avail_chroma[6] = 0; |
| au1_avail_chroma[7] = 0; |
| } |
| |
| { |
| au1_src_top_right[0] = pu1_src_chroma[sao_wd_chroma - src_strd]; |
| au1_src_top_right[1] = pu1_src_chroma[sao_wd_chroma - src_strd + 1]; |
| |
| au1_sao_src_top_left_chroma_bot_left[0] = pu1_src_chroma[sao_ht_chroma * src_strd - 2]; |
| au1_sao_src_top_left_chroma_bot_left[1] = pu1_src_chroma[sao_ht_chroma * src_strd - 1]; |
| |
| if(chroma_yuv420sp_vu) |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cr, |
| ai1_offset_cb, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| else |
| { |
| ps_codec->apf_sao_chroma[ps_sao->b3_cb_type_idx - 2](pu1_src_chroma, |
| src_strd, |
| pu1_src_left_chroma, |
| pu1_src_top_chroma, |
| pu1_sao_src_top_left_chroma_curr_ctb, |
| au1_src_top_right, |
| au1_sao_src_top_left_chroma_bot_left, |
| au1_avail_chroma, |
| ai1_offset_cb, |
| ai1_offset_cr, |
| sao_wd_chroma, |
| sao_ht_chroma); |
| } |
| } |
| |
| } |
| pu1_sao_src_top_left_chroma_top_right[0] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma]; |
| pu1_sao_src_top_left_chroma_top_right[1] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma + 1]; |
| |
| pu1_sao_src_top_left_chroma_bot_left[0] = pu1_src_chroma[(sao_ht_chroma)*src_strd + sao_wd_chroma - 2]; |
| pu1_sao_src_top_left_chroma_bot_left[1] = pu1_src_chroma[(sao_ht_chroma)*src_strd + sao_wd_chroma - 1]; |
| } |
| else if((!ps_slice_hdr->i1_first_slice_in_pic_flag) || (ps_pps->i1_tiles_enabled_flag)) |
| { |
| for(row = 0; row < sao_ht_chroma; row++) |
| { |
| pu1_src_left_chroma[2 * row] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 2)]; |
| pu1_src_left_chroma[2 * row + 1] = pu1_src_chroma[row * src_strd + (sao_wd_chroma - 1)]; |
| } |
| pu1_sao_src_top_left_chroma_curr_ctb[0] = pu1_src_top_chroma[sao_wd_chroma - 2]; |
| pu1_sao_src_top_left_chroma_curr_ctb[1] = pu1_src_top_chroma[sao_wd_chroma - 1]; |
| |
| ps_codec->s_func_selector.ihevc_memcpy_fptr(pu1_src_top_chroma, &pu1_src_chroma[(sao_ht_chroma - 1) * src_strd], sao_wd_chroma); |
| |
| pu1_sao_src_top_left_chroma_top_right[0] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma]; |
| pu1_sao_src_top_left_chroma_top_right[1] = pu1_src_chroma[(sao_ht_chroma - 1) * src_strd + sao_wd_chroma + 1]; |
| } |
| |
| } |
| } |
| |
| |
| |
| |
| /* If no loop filter is enabled copy the backed up values */ |
| { |
| /* Luma */ |
| if(no_loop_filter_enabled_luma) |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 loop_filter_bit_pos; |
| WORD32 log2_min_cu = 3; |
| WORD32 min_cu = (1 << log2_min_cu); |
| UWORD8 *pu1_src_tmp_luma = pu1_src_luma; |
| WORD32 sao_blk_ht = ctb_size - SAO_SHIFT_CTB; |
| WORD32 sao_blk_wd = ctb_size; |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + ctb_size - SAO_SHIFT_CTB); |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + ctb_size - SAO_SHIFT_CTB); |
| if(remaining_rows <= SAO_SHIFT_CTB) |
| sao_blk_ht += remaining_rows; |
| if(remaining_cols <= SAO_SHIFT_CTB) |
| sao_blk_wd += remaining_cols; |
| |
| pu1_src_tmp_luma -= ps_sao_ctxt->i4_ctb_x ? SAO_SHIFT_CTB : 0; |
| pu1_src_tmp_luma -= ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB * src_strd : 0; |
| |
| pu1_src_backup_luma = ps_sao_ctxt->pu1_tmp_buf_luma; |
| |
| loop_filter_bit_pos = (ps_sao_ctxt->i4_ctb_x << (log2_ctb_size - 3)) + |
| (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 3)) * (loop_filter_strd << 3); |
| if(ps_sao_ctxt->i4_ctb_x > 0) |
| loop_filter_bit_pos -= 1; |
| |
| pu1_no_loop_filter_flag = ps_sao_ctxt->pu1_pic_no_loop_filter_flag + |
| (loop_filter_bit_pos >> 3); |
| |
| for(i = -(ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB : 0) >> log2_min_cu; |
| i < (sao_blk_ht + (min_cu - 1)) >> log2_min_cu; i++) |
| { |
| WORD32 tmp_wd = sao_blk_wd; |
| |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> |
| (loop_filter_bit_pos & 7); |
| u4_no_loop_filter_flag &= (1 << ((tmp_wd + (min_cu - 1)) >> log2_min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| pu1_src_tmp_luma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_luma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| } |
| else |
| { |
| for(row = 0; row < min_cu; row++) |
| { |
| for(col = 0; col < MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); col++) |
| { |
| pu1_src_tmp_luma[row * src_strd + col] = pu1_src_backup_luma[row * backup_strd + col]; |
| } |
| } |
| pu1_src_tmp_luma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_luma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| } |
| } |
| |
| pu1_src_tmp_luma -= sao_blk_wd; |
| pu1_src_backup_luma -= sao_blk_wd; |
| } |
| |
| pu1_src_tmp_luma += (src_strd << log2_min_cu); |
| pu1_src_backup_luma += (backup_strd << log2_min_cu); |
| } |
| } |
| |
| /* Chroma */ |
| if(no_loop_filter_enabled_chroma) |
| { |
| UWORD32 u4_no_loop_filter_flag; |
| WORD32 loop_filter_bit_pos; |
| WORD32 log2_min_cu = 3; |
| WORD32 min_cu = (1 << log2_min_cu); |
| UWORD8 *pu1_src_tmp_chroma = pu1_src_chroma; |
| WORD32 sao_blk_ht = ctb_size - 2 * SAO_SHIFT_CTB; |
| WORD32 sao_blk_wd = ctb_size; |
| WORD32 remaining_rows; |
| WORD32 remaining_cols; |
| |
| remaining_rows = ps_sps->i2_pic_height_in_luma_samples - ((ps_sao_ctxt->i4_ctb_y << log2_ctb_size) + ctb_size - 2 * SAO_SHIFT_CTB); |
| remaining_cols = ps_sps->i2_pic_width_in_luma_samples - ((ps_sao_ctxt->i4_ctb_x << log2_ctb_size) + ctb_size - 2 * SAO_SHIFT_CTB); |
| if(remaining_rows <= 2 * SAO_SHIFT_CTB) |
| sao_blk_ht += remaining_rows; |
| if(remaining_cols <= 2 * SAO_SHIFT_CTB) |
| sao_blk_wd += remaining_cols; |
| |
| pu1_src_tmp_chroma -= ps_sao_ctxt->i4_ctb_x ? SAO_SHIFT_CTB * 2 : 0; |
| pu1_src_tmp_chroma -= ps_sao_ctxt->i4_ctb_y ? SAO_SHIFT_CTB * src_strd : 0; |
| |
| pu1_src_backup_chroma = ps_sao_ctxt->pu1_tmp_buf_chroma; |
| |
| loop_filter_bit_pos = (ps_sao_ctxt->i4_ctb_x << (log2_ctb_size - 3)) + |
| (ps_sao_ctxt->i4_ctb_y << (log2_ctb_size - 3)) * (loop_filter_strd << 3); |
| if(ps_sao_ctxt->i4_ctb_x > 0) |
| loop_filter_bit_pos -= 2; |
| |
| pu1_no_loop_filter_flag = ps_sao_ctxt->pu1_pic_no_loop_filter_flag + |
| (loop_filter_bit_pos >> 3); |
| |
| for(i = -(ps_sao_ctxt->i4_ctb_y ? 2 * SAO_SHIFT_CTB : 0) >> log2_min_cu; |
| i < (sao_blk_ht + (min_cu - 1)) >> log2_min_cu; i++) |
| { |
| WORD32 tmp_wd = sao_blk_wd; |
| |
| u4_no_loop_filter_flag = (*(UWORD32 *)(pu1_no_loop_filter_flag + i * loop_filter_strd)) >> |
| (loop_filter_bit_pos & 7); |
| u4_no_loop_filter_flag &= (1 << ((tmp_wd + (min_cu - 1)) >> log2_min_cu)) - 1; |
| |
| if(u4_no_loop_filter_flag) |
| { |
| while(tmp_wd > 0) |
| { |
| if(CTZ(u4_no_loop_filter_flag)) |
| { |
| pu1_src_tmp_chroma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_chroma += MIN(((WORD32)CTZ(u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(u4_no_loop_filter_flag)); |
| } |
| else |
| { |
| for(row = 0; row < min_cu / 2; row++) |
| { |
| for(col = 0; col < MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); col++) |
| { |
| pu1_src_tmp_chroma[row * src_strd + col] = pu1_src_backup_chroma[row * backup_strd + col]; |
| } |
| } |
| |
| pu1_src_tmp_chroma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| pu1_src_backup_chroma += MIN(((WORD32)CTZ(~u4_no_loop_filter_flag) << log2_min_cu), tmp_wd); |
| tmp_wd -= CTZ(~u4_no_loop_filter_flag) << log2_min_cu; |
| u4_no_loop_filter_flag >>= (CTZ(~u4_no_loop_filter_flag)); |
| } |
| } |
| |
| pu1_src_tmp_chroma -= sao_blk_wd; |
| pu1_src_backup_chroma -= sao_blk_wd; |
| } |
| |
| pu1_src_tmp_chroma += ((src_strd / 2) << log2_min_cu); |
| pu1_src_backup_chroma += ((backup_strd / 2) << log2_min_cu); |
| } |
| } |
| } |
| |
| } |
| |
