/****************************************************************************** * * 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_ilf_padding_frame.c * * @brief * Does frame level loop filtering (deblocking and SAO) and padding * * @author * Srinivas T * * @par List of Functions: * - ihevc_ilf_pad_frame() * * @remarks * None * ******************************************************************************* */ #include #include #include #include #include #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_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_deblk.h" #include "ihevcd_sao.h" #include "ihevc_padding.h" void ihevcd_ilf_pad_frame(deblk_ctxt_t *ps_deblk_ctxt, sao_ctxt_t *ps_sao_ctxt) { sps_t *ps_sps; slice_header_t *ps_slice_hdr; codec_t *ps_codec; WORD32 i4_ctb_x, i4_ctb_y; WORD32 ctb_size; ps_sps = ps_deblk_ctxt->ps_sps; ps_slice_hdr = ps_deblk_ctxt->ps_slice_hdr; ps_codec = ps_deblk_ctxt->ps_codec; ctb_size = (1 << ps_sps->i1_log2_ctb_size); for(i4_ctb_y = 0; i4_ctb_y < ps_sps->i2_pic_ht_in_ctb; i4_ctb_y++) { for(i4_ctb_x = 0; i4_ctb_x < ps_sps->i2_pic_wd_in_ctb; i4_ctb_x++) { WORD32 i4_is_last_ctb_x = 0; WORD32 i4_is_last_ctb_y = 0; /*TODO: * Slice header also has to be updated * */ ps_deblk_ctxt->i4_ctb_x = i4_ctb_x; ps_deblk_ctxt->i4_ctb_y = i4_ctb_y; ps_sao_ctxt->i4_ctb_x = i4_ctb_x; ps_sao_ctxt->i4_ctb_y = i4_ctb_y; if((0 == ps_slice_hdr->i1_slice_disable_deblocking_filter_flag) && (0 == ps_codec->i4_disable_deblk_pic)) { ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y); /* If the last CTB in the row was a complete CTB then deblocking has to be called from remaining pixels, since deblocking * is applied on a shifted CTB structure */ if(i4_ctb_x == ps_sps->i2_pic_wd_in_ctb - 1) { WORD32 last_x_pos; i4_is_last_ctb_x = 1; i4_is_last_ctb_y = 0; last_x_pos = (ps_sps->i2_pic_wd_in_ctb << ps_sps->i1_log2_ctb_size); if(last_x_pos == ps_sps->i2_pic_width_in_luma_samples) { ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y); } } /* If the last CTB in the column was a complete CTB then deblocking has to be called from remaining pixels, since deblocking * is applied on a shifted CTB structure */ if(i4_ctb_y == ps_sps->i2_pic_ht_in_ctb - 1) { WORD32 last_y_pos; i4_is_last_ctb_y = 1; i4_is_last_ctb_x = 0; last_y_pos = (ps_sps->i2_pic_ht_in_ctb << ps_sps->i1_log2_ctb_size); if(last_y_pos == ps_sps->i2_pic_height_in_luma_samples) { ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y); } } } if(ps_slice_hdr->i1_slice_sao_luma_flag || ps_slice_hdr->i1_slice_sao_chroma_flag) { ihevcd_sao_ctb(ps_sao_ctxt); } /* Call padding if required */ { UWORD8 *pu1_cur_ctb_luma = ps_deblk_ctxt->pu1_cur_pic_luma + (i4_ctb_x * ctb_size + i4_ctb_y * ctb_size * ps_codec->i4_strd); UWORD8 *pu1_cur_ctb_chroma = ps_deblk_ctxt->pu1_cur_pic_chroma + i4_ctb_x * ctb_size + (i4_ctb_y * ctb_size * ps_codec->i4_strd / 2); if(0 == i4_ctb_x) { WORD32 pad_ht_luma; WORD32 pad_ht_chroma; pad_ht_luma = ctb_size; pad_ht_luma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0; pad_ht_chroma = ctb_size / 2; pad_ht_chroma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0; /* Pad left after 1st CTB is processed */ ps_codec->s_func_selector.ihevc_pad_left_luma_fptr(pu1_cur_ctb_luma - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_luma, PAD_LEFT); ps_codec->s_func_selector.ihevc_pad_left_chroma_fptr(pu1_cur_ctb_chroma - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_chroma, PAD_LEFT); } else if((ps_sps->i2_pic_wd_in_ctb - 1) == i4_ctb_x) { WORD32 pad_ht_luma; WORD32 pad_ht_chroma; WORD32 cols_remaining = ps_sps->i2_pic_width_in_luma_samples - (i4_ctb_x << ps_sps->i1_log2_ctb_size); pad_ht_luma = ctb_size; pad_ht_luma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0; pad_ht_chroma = ctb_size / 2; pad_ht_chroma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0; /* Pad right after last CTB in the current row is processed */ ps_codec->s_func_selector.ihevc_pad_right_luma_fptr(pu1_cur_ctb_luma + cols_remaining - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_luma, PAD_RIGHT); ps_codec->s_func_selector.ihevc_pad_right_chroma_fptr(pu1_cur_ctb_chroma + cols_remaining - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_chroma, PAD_RIGHT); if((ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y) { UWORD8 *pu1_buf; /* Since SAO is shifted by 8x8, chroma padding can not be done till second row is processed */ /* Hence moving top padding to to end of frame, Moving it to second row also results in problems when there is only one row */ /* Pad top after padding left and right for current rows after processing 1st CTB row */ ihevc_pad_top(ps_deblk_ctxt->pu1_cur_pic_luma - PAD_LEFT, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_TOP); ihevc_pad_top(ps_deblk_ctxt->pu1_cur_pic_chroma - PAD_LEFT, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_TOP / 2); pu1_buf = ps_deblk_ctxt->pu1_cur_pic_luma + ps_codec->i4_strd * ps_sps->i2_pic_height_in_luma_samples - PAD_LEFT; /* Pad top after padding left and right for current rows after processing 1st CTB row */ ihevc_pad_bottom(pu1_buf, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_BOT); pu1_buf = ps_deblk_ctxt->pu1_cur_pic_chroma + ps_codec->i4_strd * (ps_sps->i2_pic_height_in_luma_samples / 2) - PAD_LEFT; ihevc_pad_bottom(pu1_buf, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_BOT / 2); } } } } } }