| /****************************************************************************** |
| * |
| * 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 |
| * ihevcd_parse_headers.c |
| * |
| * @brief |
| * Contains functions for parsing headers |
| * |
| * @author |
| * Harish |
| * |
| * @par List of Functions: |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| /*****************************************************************************/ |
| /* File Includes */ |
| /*****************************************************************************/ |
| #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 "ihevc_defs.h" |
| #include "ihevc_debug.h" |
| #include "ihevc_defs.h" |
| #include "ihevc_structs.h" |
| #include "ihevc_buf_mgr.h" |
| #include "ihevc_dpb_mgr.h" |
| #include "ihevc_macros.h" |
| #include "ihevc_platform_macros.h" |
| #include "ihevc_cabac_tables.h" |
| #include "ihevc_common_tables.h" |
| #include "ihevc_quant_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_debug.h" |
| #include "ihevcd_nal.h" |
| #include "ihevcd_bitstream.h" |
| #include "ihevcd_parse_headers.h" |
| #include "ihevcd_ref_list.h" |
| |
| #define COPY_DEFAULT_SCALING_LIST(pi2_scaling_mat) \ |
| { \ |
| WORD32 scaling_mat_offset[]={0, 16, 32, 48, 64, 80, 96, 160, 224, 288, 352, 416, 480, 736, 992, 1248, 1504, 1760, 2016, 3040}; \ |
| \ |
| /* scaling matrix for 4x4 */ \ |
| memcpy(pi2_scaling_mat, gi2_flat_scale_mat_32x32, 6*16*sizeof(WORD16)); \ |
| /* scaling matrix for 8x8 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[6], gi2_intra_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[7], gi2_intra_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[8], gi2_intra_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[9], gi2_inter_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[10], gi2_inter_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[11], gi2_inter_default_scale_mat_8x8, 64*sizeof(WORD16)); \ |
| /* scaling matrix for 16x16 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[12], gi2_intra_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[13], gi2_intra_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[14], gi2_intra_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[15], gi2_inter_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[16], gi2_inter_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[17], gi2_inter_default_scale_mat_16x16, 256*sizeof(WORD16)); \ |
| /* scaling matrix for 32x32 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[18], gi2_intra_default_scale_mat_32x32, 1024*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[19], gi2_inter_default_scale_mat_32x32, 1024*sizeof(WORD16)); \ |
| } |
| |
| #define COPY_FLAT_SCALING_LIST(pi2_scaling_mat) \ |
| { \ |
| WORD32 scaling_mat_offset[]={0, 16, 32, 48, 64, 80, 96, 160, 224, 288, 352, 416, 480, 736, 992, 1248, 1504, 1760, 2016, 3040}; \ |
| \ |
| /* scaling matrix for 4x4 */ \ |
| memcpy(pi2_scaling_mat, gi2_flat_scale_mat_32x32, 6*16*sizeof(WORD16)); \ |
| /* scaling matrix for 8x8 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[6], gi2_flat_scale_mat_32x32, 6*64*sizeof(WORD16)); \ |
| /* scaling matrix for 16x16 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[12], gi2_flat_scale_mat_32x32, 3*256*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[15], gi2_flat_scale_mat_32x32, 3*256*sizeof(WORD16)); \ |
| /* scaling matrix for 32x32 */ \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[18], gi2_flat_scale_mat_32x32, 1024*sizeof(WORD16)); \ |
| memcpy(pi2_scaling_mat + scaling_mat_offset[19], gi2_flat_scale_mat_32x32, 1024*sizeof(WORD16)); \ |
| } |
| |
| /* Function declarations */ |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses Prediction weight table syntax |
| * |
| * @par Description: |
| * Parse Prediction weight table syntax as per Section: 7.3.8.4 |
| * |
| * @param[in] ps_bitstrm |
| * Pointer to bitstream context |
| * |
| * @param[in] ps_sps |
| * Current SPS |
| * |
| * @param[in] ps_pps |
| * Current PPS |
| * |
| * @param[in] ps_slice_hdr |
| * Current Slice header |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| |
| WORD32 ihevcd_parse_pred_wt_ofst(bitstrm_t *ps_bitstrm, |
| sps_t *ps_sps, |
| pps_t *ps_pps, |
| slice_header_t *ps_slice_hdr) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 value; |
| WORD32 i; |
| |
| pred_wt_ofst_t *ps_wt_ofst = &ps_slice_hdr->s_wt_ofst; |
| UNUSED(ps_pps); |
| |
| UEV_PARSE("luma_log2_weight_denom", value, ps_bitstrm); |
| ps_wt_ofst->i1_luma_log2_weight_denom = value; |
| |
| if(ps_sps->i1_chroma_format_idc != 0) |
| { |
| SEV_PARSE("delta_chroma_log2_weight_denom", value, ps_bitstrm); |
| ps_wt_ofst->i1_chroma_log2_weight_denom = ps_wt_ofst->i1_luma_log2_weight_denom + value; |
| } |
| |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l0_active; i++) |
| { |
| BITS_PARSE("luma_weight_l0_flag[ i ]", value, ps_bitstrm, 1); |
| ps_wt_ofst->i1_luma_weight_l0_flag[i] = value; |
| } |
| |
| |
| |
| if(ps_sps->i1_chroma_format_idc != 0) |
| { |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l0_active; i++) |
| { |
| BITS_PARSE("chroma_weight_l0_flag[ i ]", value, ps_bitstrm, 1); |
| ps_wt_ofst->i1_chroma_weight_l0_flag[i] = value; |
| } |
| } |
| else |
| { |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l0_active; i++) |
| { |
| ps_wt_ofst->i1_chroma_weight_l0_flag[i] = 0; |
| } |
| } |
| |
| |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l0_active; i++) |
| { |
| if(ps_wt_ofst->i1_luma_weight_l0_flag[i]) |
| { |
| SEV_PARSE("delta_luma_weight_l0[ i ]", value, ps_bitstrm); |
| |
| |
| ps_wt_ofst->i2_luma_weight_l0[i] = (1 << ps_wt_ofst->i1_luma_log2_weight_denom) + value; |
| |
| SEV_PARSE("luma_offset_l0[ i ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_luma_offset_l0[i] = value; |
| |
| } |
| else |
| { |
| ps_wt_ofst->i2_luma_weight_l0[i] = (1 << ps_wt_ofst->i1_luma_log2_weight_denom); |
| ps_wt_ofst->i2_luma_offset_l0[i] = 0; |
| } |
| if(ps_wt_ofst->i1_chroma_weight_l0_flag[i]) |
| { |
| WORD32 ofst; |
| WORD32 shift = (1 << (BIT_DEPTH_CHROMA - 1)); |
| SEV_PARSE("delta_chroma_weight_l0[ i ][ j ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_chroma_weight_l0_cb[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom) + value; |
| |
| |
| SEV_PARSE("delta_chroma_offset_l0[ i ][ j ]", value, ps_bitstrm); |
| ofst = ((shift * ps_wt_ofst->i2_chroma_weight_l0_cb[i]) >> ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ofst = value - ofst + shift; |
| |
| ps_wt_ofst->i2_chroma_offset_l0_cb[i] = CLIP_S8(ofst); |
| |
| SEV_PARSE("delta_chroma_weight_l0[ i ][ j ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_chroma_weight_l0_cr[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom) + value; |
| |
| |
| SEV_PARSE("delta_chroma_offset_l0[ i ][ j ]", value, ps_bitstrm); |
| ofst = ((shift * ps_wt_ofst->i2_chroma_weight_l0_cr[i]) >> ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ofst = value - ofst + shift; |
| |
| ps_wt_ofst->i2_chroma_offset_l0_cr[i] = CLIP_S8(ofst); |
| |
| } |
| else |
| { |
| ps_wt_ofst->i2_chroma_weight_l0_cb[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ps_wt_ofst->i2_chroma_weight_l0_cr[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom); |
| |
| ps_wt_ofst->i2_chroma_offset_l0_cb[i] = 0; |
| ps_wt_ofst->i2_chroma_offset_l0_cr[i] = 0; |
| } |
| } |
| if(BSLICE == ps_slice_hdr->i1_slice_type) |
| { |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l1_active; i++) |
| { |
| BITS_PARSE("luma_weight_l1_flag[ i ]", value, ps_bitstrm, 1); |
| ps_wt_ofst->i1_luma_weight_l1_flag[i] = value; |
| } |
| |
| if(ps_sps->i1_chroma_format_idc != 0) |
| { |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l1_active; i++) |
| { |
| BITS_PARSE("chroma_weight_l1_flag[ i ]", value, ps_bitstrm, 1); |
| ps_wt_ofst->i1_chroma_weight_l1_flag[i] = value; |
| } |
| } |
| else |
| { |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l1_active; i++) |
| { |
| ps_wt_ofst->i1_chroma_weight_l1_flag[i] = 0; |
| } |
| } |
| |
| for(i = 0; i < ps_slice_hdr->i1_num_ref_idx_l1_active; i++) |
| { |
| if(ps_wt_ofst->i1_luma_weight_l1_flag[i]) |
| { |
| SEV_PARSE("delta_luma_weight_l1[ i ]", value, ps_bitstrm); |
| |
| |
| ps_wt_ofst->i2_luma_weight_l1[i] = (1 << ps_wt_ofst->i1_luma_log2_weight_denom) + value; |
| |
| SEV_PARSE("luma_offset_l1[ i ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_luma_offset_l1[i] = value; |
| |
| } |
| else |
| { |
| ps_wt_ofst->i2_luma_weight_l1[i] = (1 << ps_wt_ofst->i1_luma_log2_weight_denom); |
| ps_wt_ofst->i2_luma_offset_l1[i] = 0; |
| } |
| |
| if(ps_wt_ofst->i1_chroma_weight_l1_flag[i]) |
| { |
| WORD32 ofst; |
| WORD32 shift = (1 << (BIT_DEPTH_CHROMA - 1)); |
| SEV_PARSE("delta_chroma_weight_l1[ i ][ j ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_chroma_weight_l1_cb[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom) + value;; |
| |
| |
| SEV_PARSE("delta_chroma_offset_l1[ i ][ j ]", value, ps_bitstrm); |
| ofst = ((shift * ps_wt_ofst->i2_chroma_weight_l1_cb[i]) >> ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ofst = value - ofst + shift; |
| |
| ps_wt_ofst->i2_chroma_offset_l1_cb[i] = CLIP_S8(ofst);; |
| |
| SEV_PARSE("delta_chroma_weight_l1[ i ][ j ]", value, ps_bitstrm); |
| ps_wt_ofst->i2_chroma_weight_l1_cr[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom) + value; |
| |
| |
| SEV_PARSE("delta_chroma_offset_l1[ i ][ j ]", value, ps_bitstrm); |
| ofst = ((shift * ps_wt_ofst->i2_chroma_weight_l1_cr[i]) >> ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ofst = value - ofst + shift; |
| |
| ps_wt_ofst->i2_chroma_offset_l1_cr[i] = CLIP_S8(ofst);; |
| |
| } |
| else |
| { |
| ps_wt_ofst->i2_chroma_weight_l1_cb[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom); |
| ps_wt_ofst->i2_chroma_weight_l1_cr[i] = (1 << ps_wt_ofst->i1_chroma_log2_weight_denom); |
| |
| ps_wt_ofst->i2_chroma_offset_l1_cb[i] = 0; |
| ps_wt_ofst->i2_chroma_offset_l1_cr[i] = 0; |
| |
| } |
| } |
| } |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses short term reference picture set |
| * |
| * @par Description |
| * Parses short term reference picture set as per section 7.3.8.2. |
| * Can be called by either SPS or Slice header parsing modules. |
| * |
| * @param[in] ps_bitstrm |
| * Pointer to bitstream structure |
| * |
| * @param[out] ps_stref_picset_base |
| * Pointer to first short term ref pic set structure |
| * |
| * @param[in] num_short_term_ref_pic_sets |
| * Number of short term reference pic sets |
| * |
| * @param[in] idx |
| * Current short term ref pic set id |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_short_term_ref_pic_set(bitstrm_t *ps_bitstrm, |
| stref_picset_t *ps_stref_picset_base, |
| WORD32 num_short_term_ref_pic_sets, |
| WORD32 idx, |
| stref_picset_t *ps_stref_picset) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 value; |
| stref_picset_t *ps_stref_picset_ref; |
| WORD32 delta_idx, delta_rps; |
| WORD32 r_idx; |
| WORD32 i; |
| WORD32 j, k, temp; |
| if(idx > 0) |
| { |
| BITS_PARSE("inter_ref_pic_set_prediction_flag", value, ps_bitstrm, 1); |
| ps_stref_picset->i1_inter_ref_pic_set_prediction_flag = value; |
| } |
| else |
| ps_stref_picset->i1_inter_ref_pic_set_prediction_flag = 0; |
| |
| if(ps_stref_picset->i1_inter_ref_pic_set_prediction_flag) |
| { |
| WORD32 delta_rps_sign; |
| WORD32 abs_delta_rps; |
| WORD32 num_neg_pics = 0; |
| WORD32 num_pos_pics = 0; |
| WORD32 num_pics = 0; |
| |
| if(idx == num_short_term_ref_pic_sets) |
| { |
| UEV_PARSE("delta_idx_minus1", value, ps_bitstrm); |
| delta_idx = value + 1; |
| } |
| else |
| { |
| delta_idx = 1; |
| } |
| r_idx = idx - delta_idx; |
| r_idx = CLIP3(r_idx, 0, idx - 1); |
| |
| ps_stref_picset_ref = ps_stref_picset_base + r_idx; |
| |
| BITS_PARSE("delta_rps_sign", value, ps_bitstrm, 1); |
| delta_rps_sign = value; |
| |
| UEV_PARSE("abs_delta_rps_minus1", value, ps_bitstrm); |
| abs_delta_rps = value + 1; |
| |
| delta_rps = (1 - 2 * delta_rps_sign) * (abs_delta_rps); |
| |
| |
| |
| for(i = 0; i <= ps_stref_picset_ref->i1_num_delta_pocs; i++) |
| { |
| WORD32 ref_idc; |
| |
| /*****************************************************************/ |
| /* ref_idc is parsed as below */ |
| /* bits "1" ref_idc 1 */ |
| /* bits "01" ref_idc 2 */ |
| /* bits "00" ref_idc 0 */ |
| /*****************************************************************/ |
| BITS_PARSE("used_by_curr_pic_flag", value, ps_bitstrm, 1); |
| ref_idc = value; |
| ps_stref_picset->ai1_used[num_pics] = value; |
| /* If ref_idc is zero check for next bit */ |
| if(0 == ref_idc) |
| { |
| BITS_PARSE("use_delta_flag", value, ps_bitstrm, 1); |
| ps_stref_picset->ai1_used[i] = value; |
| ref_idc = value << 1; |
| } |
| if((ref_idc == 1) || (ref_idc == 2)) |
| { |
| WORD32 delta_poc; |
| delta_poc = delta_rps; |
| delta_poc += |
| ((i < ps_stref_picset_ref->i1_num_delta_pocs) ? |
| ps_stref_picset_ref->ai2_delta_poc[i] : |
| 0); |
| |
| ps_stref_picset->ai2_delta_poc[num_pics] = delta_poc; |
| |
| if(delta_poc < 0) |
| { |
| num_neg_pics++; |
| } |
| else |
| { |
| num_pos_pics++; |
| } |
| num_pics++; |
| } |
| ps_stref_picset->ai1_ref_idc[i] = ref_idc; |
| } |
| |
| num_neg_pics = CLIP3(num_neg_pics, 0, MAX_DPB_SIZE - 1); |
| num_pos_pics = CLIP3(num_pos_pics, 0, (MAX_DPB_SIZE - 1 - num_neg_pics)); |
| num_pics = num_neg_pics + num_pos_pics; |
| |
| ps_stref_picset->i1_num_ref_idc = |
| ps_stref_picset_ref->i1_num_delta_pocs + 1; |
| ps_stref_picset->i1_num_delta_pocs = num_pics; |
| ps_stref_picset->i1_num_pos_pics = num_pos_pics; |
| ps_stref_picset->i1_num_neg_pics = num_neg_pics; |
| |
| |
| for(j = 1; j < num_pics; j++) |
| { |
| WORD32 delta_poc = ps_stref_picset->ai2_delta_poc[j]; |
| WORD8 i1_used = ps_stref_picset->ai1_used[j]; |
| for(k = j - 1; k >= 0; k--) |
| { |
| temp = ps_stref_picset->ai2_delta_poc[k]; |
| if(delta_poc < temp) |
| { |
| ps_stref_picset->ai2_delta_poc[k + 1] = temp; |
| ps_stref_picset->ai1_used[k + 1] = ps_stref_picset->ai1_used[k]; |
| ps_stref_picset->ai2_delta_poc[k] = delta_poc; |
| ps_stref_picset->ai1_used[k] = i1_used; |
| } |
| } |
| } |
| // flip the negative values to largest first |
| for(j = 0, k = num_neg_pics - 1; j < num_neg_pics >> 1; j++, k--) |
| { |
| WORD32 delta_poc = ps_stref_picset->ai2_delta_poc[j]; |
| WORD8 i1_used = ps_stref_picset->ai1_used[j]; |
| ps_stref_picset->ai2_delta_poc[j] = ps_stref_picset->ai2_delta_poc[k]; |
| ps_stref_picset->ai1_used[j] = ps_stref_picset->ai1_used[k]; |
| ps_stref_picset->ai2_delta_poc[k] = delta_poc; |
| ps_stref_picset->ai1_used[k] = i1_used; |
| } |
| |
| } |
| else |
| { |
| WORD32 prev_poc = 0; |
| WORD32 poc; |
| |
| UEV_PARSE("num_negative_pics", value, ps_bitstrm); |
| ps_stref_picset->i1_num_neg_pics = value; |
| ps_stref_picset->i1_num_neg_pics = CLIP3(ps_stref_picset->i1_num_neg_pics, |
| 0, |
| MAX_DPB_SIZE - 1); |
| |
| UEV_PARSE("num_positive_pics", value, ps_bitstrm); |
| ps_stref_picset->i1_num_pos_pics = value; |
| ps_stref_picset->i1_num_pos_pics = CLIP3(ps_stref_picset->i1_num_pos_pics, |
| 0, |
| (MAX_DPB_SIZE - 1 - ps_stref_picset->i1_num_neg_pics)); |
| |
| ps_stref_picset->i1_num_delta_pocs = |
| ps_stref_picset->i1_num_neg_pics + |
| ps_stref_picset->i1_num_pos_pics; |
| |
| |
| for(i = 0; i < ps_stref_picset->i1_num_neg_pics; i++) |
| { |
| UEV_PARSE("delta_poc_s0_minus1", value, ps_bitstrm); |
| poc = prev_poc - (value + 1); |
| prev_poc = poc; |
| ps_stref_picset->ai2_delta_poc[i] = poc; |
| |
| BITS_PARSE("used_by_curr_pic_s0_flag", value, ps_bitstrm, 1); |
| ps_stref_picset->ai1_used[i] = value; |
| |
| } |
| prev_poc = 0; |
| for(i = ps_stref_picset->i1_num_neg_pics; |
| i < ps_stref_picset->i1_num_delta_pocs; |
| i++) |
| { |
| UEV_PARSE("delta_poc_s1_minus1", value, ps_bitstrm); |
| poc = prev_poc + (value + 1); |
| prev_poc = poc; |
| ps_stref_picset->ai2_delta_poc[i] = poc; |
| |
| BITS_PARSE("used_by_curr_pic_s1_flag", value, ps_bitstrm, 1); |
| ps_stref_picset->ai1_used[i] = value; |
| |
| } |
| |
| } |
| |
| return ret; |
| } |
| |
| |
| static WORD32 ihevcd_parse_sub_layer_hrd_parameters(bitstrm_t *ps_bitstrm, |
| sub_lyr_hrd_params_t *ps_sub_layer_hrd_params, |
| WORD32 cpb_cnt, |
| WORD32 sub_pic_cpb_params_present_flag) |
| { |
| WORD32 ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 i; |
| |
| for(i = 0; i <= cpb_cnt; i++) |
| { |
| UEV_PARSE("bit_rate_value_minus1[ i ]", ps_sub_layer_hrd_params->au4_bit_rate_value_minus1[i], ps_bitstrm); |
| UEV_PARSE("cpb_size_value_minus1[ i ]", ps_sub_layer_hrd_params->au4_cpb_size_value_minus1[i], ps_bitstrm); |
| |
| if(sub_pic_cpb_params_present_flag) |
| { |
| UEV_PARSE("cpb_size_du_value_minus1[ i ]", ps_sub_layer_hrd_params->au4_cpb_size_du_value_minus1[i], ps_bitstrm); |
| UEV_PARSE("bit_rate_du_value_minus1[ i ]", ps_sub_layer_hrd_params->au4_bit_rate_du_value_minus1[i], ps_bitstrm); |
| } |
| BITS_PARSE("cbr_flag[ i ]", ps_sub_layer_hrd_params->au1_cbr_flag[i], ps_bitstrm, 1); |
| } |
| |
| return ret; |
| } |
| |
| |
| static WORD32 ihevcd_parse_hrd_parameters(bitstrm_t *ps_bitstrm, |
| hrd_params_t *ps_hrd, |
| WORD32 common_info_present_flag, |
| WORD32 max_num_sub_layers_minus1) |
| { |
| WORD32 ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 i; |
| |
| ps_hrd->u1_nal_hrd_parameters_present_flag = 0; |
| ps_hrd->u1_vcl_hrd_parameters_present_flag = 0; |
| |
| ps_hrd->u1_sub_pic_cpb_params_present_flag = 0; |
| |
| ps_hrd->u1_tick_divisor_minus2 = 0; |
| ps_hrd->u1_du_cpb_removal_delay_increment_length_minus1 = 0; |
| ps_hrd->u1_sub_pic_cpb_params_in_pic_timing_sei_flag = 0; |
| ps_hrd->u1_dpb_output_delay_du_length_minus1 = 0; |
| |
| ps_hrd->u4_bit_rate_scale = 0; |
| ps_hrd->u4_cpb_size_scale = 0; |
| ps_hrd->u4_cpb_size_du_scale = 0; |
| |
| ps_hrd->u1_initial_cpb_removal_delay_length_minus1 = 23; |
| ps_hrd->u1_au_cpb_removal_delay_length_minus1 = 23; |
| ps_hrd->u1_dpb_output_delay_length_minus1 = 23; |
| |
| if(common_info_present_flag) |
| { |
| BITS_PARSE("nal_hrd_parameters_present_flag", ps_hrd->u1_nal_hrd_parameters_present_flag, ps_bitstrm, 1); |
| BITS_PARSE("vcl_hrd_parameters_present_flag", ps_hrd->u1_vcl_hrd_parameters_present_flag, ps_bitstrm, 1); |
| |
| if(ps_hrd->u1_nal_hrd_parameters_present_flag || ps_hrd->u1_vcl_hrd_parameters_present_flag) |
| { |
| BITS_PARSE("sub_pic_cpb_params_present_flag", ps_hrd->u1_sub_pic_cpb_params_present_flag, ps_bitstrm, 1); |
| if(ps_hrd->u1_sub_pic_cpb_params_present_flag) |
| { |
| BITS_PARSE("tick_divisor_minus2", ps_hrd->u1_tick_divisor_minus2, ps_bitstrm, 8); |
| BITS_PARSE("du_cpb_removal_delay_increment_length_minus1", ps_hrd->u1_du_cpb_removal_delay_increment_length_minus1, ps_bitstrm, 5); |
| BITS_PARSE("sub_pic_cpb_params_in_pic_timing_sei_flag", ps_hrd->u1_sub_pic_cpb_params_in_pic_timing_sei_flag, ps_bitstrm, 1); |
| BITS_PARSE("dpb_output_delay_du_length_minus1", ps_hrd->u1_dpb_output_delay_du_length_minus1, ps_bitstrm, 5); |
| } |
| |
| BITS_PARSE("bit_rate_scale", ps_hrd->u4_bit_rate_scale, ps_bitstrm, 4); |
| BITS_PARSE("cpb_size_scale", ps_hrd->u4_cpb_size_scale, ps_bitstrm, 4); |
| if(ps_hrd->u1_sub_pic_cpb_params_present_flag) |
| BITS_PARSE("cpb_size_du_scale", ps_hrd->u4_cpb_size_du_scale, ps_bitstrm, 4); |
| |
| BITS_PARSE("initial_cpb_removal_delay_length_minus1", ps_hrd->u1_initial_cpb_removal_delay_length_minus1, ps_bitstrm, 5); |
| BITS_PARSE("au_cpb_removal_delay_length_minus1", ps_hrd->u1_au_cpb_removal_delay_length_minus1, ps_bitstrm, 5); |
| BITS_PARSE("dpb_output_delay_length_minus1", ps_hrd->u1_dpb_output_delay_length_minus1, ps_bitstrm, 5); |
| } |
| } |
| |
| |
| for(i = 0; i <= max_num_sub_layers_minus1; i++) |
| { |
| BITS_PARSE("fixed_pic_rate_general_flag[ i ]", ps_hrd->au1_fixed_pic_rate_general_flag[i], ps_bitstrm, 1); |
| |
| ps_hrd->au1_fixed_pic_rate_within_cvs_flag[i] = 1; |
| ps_hrd->au1_elemental_duration_in_tc_minus1[i] = 0; |
| ps_hrd->au1_low_delay_hrd_flag[i] = 0; |
| ps_hrd->au1_cpb_cnt_minus1[i] = 0; |
| |
| if(!ps_hrd->au1_fixed_pic_rate_general_flag[i]) |
| BITS_PARSE("fixed_pic_rate_within_cvs_flag[ i ]", ps_hrd->au1_fixed_pic_rate_within_cvs_flag[i], ps_bitstrm, 1); |
| |
| if(ps_hrd->au1_fixed_pic_rate_within_cvs_flag[i]) |
| { |
| UEV_PARSE("elemental_duration_in_tc_minus1[ i ]", ps_hrd->au1_elemental_duration_in_tc_minus1[i], ps_bitstrm); |
| } |
| else |
| { |
| BITS_PARSE("low_delay_hrd_flag[ i ]", ps_hrd->au1_low_delay_hrd_flag[i], ps_bitstrm, 1); |
| } |
| |
| if(!ps_hrd->au1_low_delay_hrd_flag[i]) |
| UEV_PARSE("cpb_cnt_minus1[ i ]", ps_hrd->au1_cpb_cnt_minus1[i], ps_bitstrm); |
| |
| if(ps_hrd->u1_nal_hrd_parameters_present_flag) |
| ihevcd_parse_sub_layer_hrd_parameters(ps_bitstrm, |
| &ps_hrd->as_sub_layer_hrd_params[i], |
| ps_hrd->au1_cpb_cnt_minus1[i], |
| ps_hrd->u1_sub_pic_cpb_params_present_flag); |
| |
| if(ps_hrd->u1_vcl_hrd_parameters_present_flag) |
| ihevcd_parse_sub_layer_hrd_parameters(ps_bitstrm, |
| &ps_hrd->as_sub_layer_hrd_params[i], |
| ps_hrd->au1_cpb_cnt_minus1[i], |
| ps_hrd->u1_sub_pic_cpb_params_present_flag); |
| } |
| |
| return ret; |
| } |
| |
| |
| static WORD32 ihevcd_parse_vui_parameters(bitstrm_t *ps_bitstrm, |
| vui_t *ps_vui, |
| WORD32 sps_max_sub_layers_minus1) |
| { |
| WORD32 ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| |
| BITS_PARSE("aspect_ratio_info_present_flag", ps_vui->u1_aspect_ratio_info_present_flag, ps_bitstrm, 1); |
| |
| ps_vui->u1_aspect_ratio_idc = SAR_UNUSED; |
| ps_vui->u2_sar_width = 0; |
| ps_vui->u2_sar_height = 0; |
| if(ps_vui->u1_aspect_ratio_info_present_flag) |
| { |
| BITS_PARSE("aspect_ratio_idc", ps_vui->u1_aspect_ratio_idc, ps_bitstrm, 8); |
| if(ps_vui->u1_aspect_ratio_idc == EXTENDED_SAR) |
| { |
| BITS_PARSE("sar_width", ps_vui->u2_sar_width, ps_bitstrm, 16); |
| BITS_PARSE("sar_height", ps_vui->u2_sar_height, ps_bitstrm, 16); |
| } |
| } |
| |
| BITS_PARSE("overscan_info_present_flag", ps_vui->u1_overscan_info_present_flag, ps_bitstrm, 1); |
| ps_vui->u1_overscan_appropriate_flag = 0; |
| if(ps_vui->u1_overscan_info_present_flag) |
| BITS_PARSE("overscan_appropriate_flag", ps_vui->u1_overscan_appropriate_flag, ps_bitstrm, 1); |
| |
| BITS_PARSE("video_signal_type_present_flag", ps_vui->u1_video_signal_type_present_flag, ps_bitstrm, 1); |
| ps_vui->u1_video_format = VID_FMT_UNSPECIFIED; |
| ps_vui->u1_video_full_range_flag = 0; |
| ps_vui->u1_colour_description_present_flag = 0; |
| ps_vui->u1_colour_primaries = 2; |
| ps_vui->u1_transfer_characteristics = 2; |
| ps_vui->u1_matrix_coefficients = 2; |
| |
| if(ps_vui->u1_video_signal_type_present_flag) |
| { |
| BITS_PARSE("video_format", ps_vui->u1_video_format, ps_bitstrm, 3); |
| BITS_PARSE("video_full_range_flag", ps_vui->u1_video_full_range_flag, ps_bitstrm, 1); |
| BITS_PARSE("colour_description_present_flag", ps_vui->u1_colour_description_present_flag, ps_bitstrm, 1); |
| if(ps_vui->u1_colour_description_present_flag) |
| { |
| BITS_PARSE("colour_primaries", ps_vui->u1_colour_primaries, ps_bitstrm, 8); |
| BITS_PARSE("transfer_characteristics", ps_vui->u1_transfer_characteristics, ps_bitstrm, 8); |
| BITS_PARSE("matrix_coeffs", ps_vui->u1_matrix_coefficients, ps_bitstrm, 8); |
| } |
| } |
| |
| BITS_PARSE("chroma_loc_info_present_flag", ps_vui->u1_chroma_loc_info_present_flag, ps_bitstrm, 1); |
| ps_vui->u1_chroma_sample_loc_type_top_field = 0; |
| ps_vui->u1_chroma_sample_loc_type_bottom_field = 0; |
| if(ps_vui->u1_chroma_loc_info_present_flag) |
| { |
| UEV_PARSE("chroma_sample_loc_type_top_field", ps_vui->u1_chroma_sample_loc_type_top_field, ps_bitstrm); |
| UEV_PARSE("chroma_sample_loc_type_bottom_field", ps_vui->u1_chroma_sample_loc_type_bottom_field, ps_bitstrm); |
| } |
| |
| BITS_PARSE("neutral_chroma_indication_flag", ps_vui->u1_neutral_chroma_indication_flag, ps_bitstrm, 1); |
| BITS_PARSE("field_seq_flag", ps_vui->u1_field_seq_flag, ps_bitstrm, 1); |
| BITS_PARSE("frame_field_info_present_flag", ps_vui->u1_frame_field_info_present_flag, ps_bitstrm, 1); |
| BITS_PARSE("default_display_window_flag", ps_vui->u1_default_display_window_flag, ps_bitstrm, 1); |
| ps_vui->u4_def_disp_win_left_offset = 0; |
| ps_vui->u4_def_disp_win_right_offset = 0; |
| ps_vui->u4_def_disp_win_top_offset = 0; |
| ps_vui->u4_def_disp_win_bottom_offset = 0; |
| if(ps_vui->u1_default_display_window_flag) |
| { |
| UEV_PARSE("def_disp_win_left_offset", ps_vui->u4_def_disp_win_left_offset, ps_bitstrm); |
| UEV_PARSE("def_disp_win_right_offset", ps_vui->u4_def_disp_win_right_offset, ps_bitstrm); |
| UEV_PARSE("def_disp_win_top_offset", ps_vui->u4_def_disp_win_top_offset, ps_bitstrm); |
| UEV_PARSE("def_disp_win_bottom_offset", ps_vui->u4_def_disp_win_bottom_offset, ps_bitstrm); |
| } |
| |
| BITS_PARSE("vui_timing_info_present_flag", ps_vui->u1_vui_timing_info_present_flag, ps_bitstrm, 1); |
| if(ps_vui->u1_vui_timing_info_present_flag) |
| { |
| BITS_PARSE("vui_num_units_in_tick", ps_vui->u4_vui_num_units_in_tick, ps_bitstrm, 32); |
| BITS_PARSE("vui_time_scale", ps_vui->u4_vui_time_scale, ps_bitstrm, 32); |
| BITS_PARSE("vui_poc_proportional_to_timing_flag", ps_vui->u1_poc_proportional_to_timing_flag, ps_bitstrm, 1); |
| if(ps_vui->u1_poc_proportional_to_timing_flag) |
| UEV_PARSE("vui_num_ticks_poc_diff_one_minus1", ps_vui->u1_num_ticks_poc_diff_one_minus1, ps_bitstrm); |
| |
| BITS_PARSE("vui_hrd_parameters_present_flag", ps_vui->u1_vui_hrd_parameters_present_flag, ps_bitstrm, 1); |
| if(ps_vui->u1_vui_hrd_parameters_present_flag) |
| ihevcd_parse_hrd_parameters(ps_bitstrm, &ps_vui->s_vui_hrd_parameters, 1, sps_max_sub_layers_minus1); |
| } |
| |
| BITS_PARSE("bitstream_restriction_flag", ps_vui->u1_bitstream_restriction_flag, ps_bitstrm, 1); |
| ps_vui->u1_tiles_fixed_structure_flag = 0; |
| ps_vui->u1_motion_vectors_over_pic_boundaries_flag = 1; |
| ps_vui->u1_restricted_ref_pic_lists_flag = 0; |
| ps_vui->u4_min_spatial_segmentation_idc = 0; |
| ps_vui->u1_max_bytes_per_pic_denom = 2; |
| ps_vui->u1_max_bits_per_mincu_denom = 1; |
| ps_vui->u1_log2_max_mv_length_horizontal = 15; |
| ps_vui->u1_log2_max_mv_length_vertical = 15; |
| if(ps_vui->u1_bitstream_restriction_flag) |
| { |
| BITS_PARSE("tiles_fixed_structure_flag", ps_vui->u1_tiles_fixed_structure_flag, ps_bitstrm, 1); |
| BITS_PARSE("motion_vectors_over_pic_boundaries_flag", ps_vui->u1_motion_vectors_over_pic_boundaries_flag, ps_bitstrm, 1); |
| BITS_PARSE("restricted_ref_pic_lists_flag", ps_vui->u1_restricted_ref_pic_lists_flag, ps_bitstrm, 1); |
| |
| UEV_PARSE("min_spatial_segmentation_idc", ps_vui->u4_min_spatial_segmentation_idc, ps_bitstrm); |
| UEV_PARSE("max_bytes_per_pic_denom", ps_vui->u1_max_bytes_per_pic_denom, ps_bitstrm); |
| UEV_PARSE("max_bits_per_min_cu_denom", ps_vui->u1_max_bits_per_mincu_denom, ps_bitstrm); |
| UEV_PARSE("log2_max_mv_length_horizontal", ps_vui->u1_log2_max_mv_length_horizontal, ps_bitstrm); |
| UEV_PARSE("log2_max_mv_length_vertical", ps_vui->u1_log2_max_mv_length_vertical, ps_bitstrm); |
| } |
| |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses profile tier and level info for either general layer of sub_layer |
| * |
| * @par Description |
| * Parses profile tier and level info for either general layer of sub_layer |
| * as per section 7.3.3 |
| * |
| * Since the same function is called for parsing general_profile and |
| * sub_layer_profile etc, variables do not specify whether the syntax is |
| * for general or sub_layer. Similarly trace functions also do not differentiate |
| * |
| * @param[in] ps_bitstrm |
| * Pointer to bitstream structure |
| * |
| * @param[out] ps_ptl |
| * Pointer to profile, tier level structure |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| ******************************************************************************* |
| */ |
| |
| static IHEVCD_ERROR_T ihevcd_parse_profile_tier_level_layer(bitstrm_t *ps_bitstrm, |
| profile_tier_lvl_t *ps_ptl) |
| { |
| WORD32 value; |
| WORD32 i; |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| |
| BITS_PARSE("XXX_profile_space[]", value, ps_bitstrm, 2); |
| ps_ptl->i1_profile_space = value; |
| |
| BITS_PARSE("XXX_tier_flag[]", value, ps_bitstrm, 1); |
| ps_ptl->i1_tier_flag = value; |
| |
| BITS_PARSE("XXX_profile_idc[]", value, ps_bitstrm, 5); |
| ps_ptl->i1_profile_idc = value; |
| |
| for(i = 0; i < MAX_PROFILE_COMPATBLTY; i++) |
| { |
| BITS_PARSE("XXX_profile_compatibility_flag[][j]", value, ps_bitstrm, 1); |
| ps_ptl->ai1_profile_compatibility_flag[i] = value; |
| } |
| |
| BITS_PARSE("general_progressive_source_flag", value, ps_bitstrm, 1); |
| ps_ptl->i1_general_progressive_source_flag = value; |
| |
| BITS_PARSE("general_interlaced_source_flag", value, ps_bitstrm, 1); |
| ps_ptl->i1_general_progressive_source_flag = value; |
| |
| BITS_PARSE("general_non_packed_constraint_flag", value, ps_bitstrm, 1); |
| ps_ptl->i1_general_progressive_source_flag = value; |
| |
| BITS_PARSE("general_frame_only_constraint_flag", value, ps_bitstrm, 1); |
| ps_ptl->i1_general_progressive_source_flag = value; |
| |
| BITS_PARSE("XXX_reserved_zero_44bits[0..15]", value, ps_bitstrm, 16); |
| |
| BITS_PARSE("XXX_reserved_zero_44bits[16..31]", value, ps_bitstrm, 16); |
| |
| BITS_PARSE("XXX_reserved_zero_44bits[32..43]", value, ps_bitstrm, 12); |
| return ret; |
| } |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses profile tier and level info |
| * |
| * @par Description |
| * Parses profile tier and level info as per section 7.3.3 |
| * Called during VPS and SPS parsing |
| * calls ihevcd_parse_profile_tier_level() for general layer and each sub_layers |
| * |
| * @param[in] ps_bitstrm |
| * Pointer to bitstream structure |
| * |
| * @param[out] ps_ptl |
| * Pointer to structure that contains profile, tier level for each layers |
| * |
| * @param[in] profile_present |
| * Flag to indicate if profile data is present |
| * |
| * @param[in] max_num_sub_layers |
| * Number of sub layers present |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| ******************************************************************************* |
| */ |
| |
| static IHEVCD_ERROR_T ihevcd_profile_tier_level(bitstrm_t *ps_bitstrm, |
| profile_tier_lvl_info_t *ps_ptl, |
| WORD32 profile_present, |
| WORD32 max_num_sub_layers) |
| { |
| WORD32 value; |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 i; |
| |
| if(profile_present) |
| { |
| ret = ihevcd_parse_profile_tier_level_layer(ps_bitstrm, &ps_ptl->s_ptl_gen); |
| } |
| |
| BITS_PARSE("general_level_idc", value, ps_bitstrm, 8); |
| ps_ptl->s_ptl_gen.u1_level_idc = value; |
| |
| |
| for(i = 0; i < max_num_sub_layers; i++) |
| { |
| BITS_PARSE("sub_layer_profile_present_flag[i]", value, ps_bitstrm, 1); |
| ps_ptl->ai1_sub_layer_profile_present_flag[i] = value; |
| |
| BITS_PARSE("sub_layer_level_present_flag[i]", value, ps_bitstrm, 1); |
| ps_ptl->ai1_sub_layer_level_present_flag[i] = value; |
| } |
| |
| if(max_num_sub_layers > 0) |
| { |
| for(i = max_num_sub_layers; i < 8; i++) |
| { |
| BITS_PARSE("reserved_zero_2bits", value, ps_bitstrm, 2); |
| } |
| } |
| |
| for(i = 0; i < max_num_sub_layers; i++) |
| { |
| if(ps_ptl->ai1_sub_layer_profile_present_flag[i]) |
| { |
| ret = ihevcd_parse_profile_tier_level_layer(ps_bitstrm, |
| &ps_ptl->as_ptl_sub[i]); |
| } |
| if(ps_ptl->ai1_sub_layer_level_present_flag[i]) |
| { |
| BITS_PARSE("sub_layer_level_idc[i]", value, ps_bitstrm, 8); |
| ps_ptl->as_ptl_sub[i].u1_level_idc = value; |
| |
| } |
| } |
| |
| |
| |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses Scaling List Data syntax |
| * |
| * @par Description: |
| * Parses Scaling List Data syntax as per Section: 7.3.6 |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_scaling_list_data(codec_t *ps_codec, WORD16 *pi2_scaling_mat) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 size_id; |
| WORD32 matrix_id; |
| WORD32 value, dc_value = 0; |
| WORD32 next_coef; |
| WORD32 coef_num; |
| WORD32 i, j, offset; |
| bitstrm_t *ps_bitstrm = &ps_codec->s_parse.s_bitstrm; |
| WORD16 *pi2_scaling_mat_offset; |
| WORD32 scaling_mat_offset[] = { 0, 16, 32, 48, 64, 80, 96, 160, 224, 288, 352, 416, 480, 736, 992, 1248, 1504, 1760, 2016, 3040 }; |
| UWORD8 *scan_table; |
| |
| for(size_id = 0; size_id < 4; size_id++) |
| { |
| for(matrix_id = 0; matrix_id < ((size_id == 3) ? 2 : 6); matrix_id++) |
| { |
| WORD32 scaling_list_pred_mode_flag; |
| WORD32 scaling_list_delta_coef; |
| BITS_PARSE("scaling_list_pred_mode_flag", scaling_list_pred_mode_flag, ps_bitstrm, 1); |
| |
| offset = size_id * 6 + matrix_id; |
| pi2_scaling_mat_offset = pi2_scaling_mat + scaling_mat_offset[offset]; |
| |
| if(!scaling_list_pred_mode_flag) |
| { |
| WORD32 num_elements; |
| UEV_PARSE("scaling_list_pred_matrix_id_delta", value, |
| ps_bitstrm); |
| value = CLIP3(value, 0, matrix_id); |
| |
| num_elements = (1 << (4 + (size_id << 1))); |
| if(0 != value) |
| memcpy(pi2_scaling_mat_offset, pi2_scaling_mat_offset - value * num_elements, num_elements * sizeof(WORD16)); |
| } |
| else |
| { |
| next_coef = 8; |
| coef_num = MIN(64, (1 << (4 + (size_id << 1)))); |
| |
| if(size_id > 1) |
| { |
| SEV_PARSE("scaling_list_dc_coef_minus8", value, |
| ps_bitstrm); |
| |
| next_coef = value + 8; |
| dc_value = next_coef; |
| } |
| if(size_id < 2) |
| { |
| scan_table = (UWORD8 *)gapv_ihevc_invscan[size_id + 1]; |
| |
| for(i = 0; i < coef_num; i++) |
| { |
| SEV_PARSE("scaling_list_delta_coef", |
| scaling_list_delta_coef, ps_bitstrm); |
| next_coef = (next_coef + scaling_list_delta_coef + 256) |
| % 256; |
| pi2_scaling_mat_offset[scan_table[i]] = next_coef; |
| } |
| } |
| else if(size_id == 2) |
| { |
| scan_table = (UWORD8 *)gapv_ihevc_invscan[2]; |
| |
| for(i = 0; i < coef_num; i++) |
| { |
| SEV_PARSE("scaling_list_delta_coef", |
| scaling_list_delta_coef, ps_bitstrm); |
| next_coef = (next_coef + scaling_list_delta_coef + 256) |
| % 256; |
| |
| offset = scan_table[i]; |
| offset = (offset >> 3) * 16 * 2 + (offset & 0x7) * 2; |
| pi2_scaling_mat_offset[offset] = next_coef; |
| pi2_scaling_mat_offset[offset + 1] = next_coef; |
| pi2_scaling_mat_offset[offset + 16] = next_coef; |
| pi2_scaling_mat_offset[offset + 16 + 1] = next_coef; |
| } |
| pi2_scaling_mat_offset[0] = dc_value; |
| } |
| else |
| { |
| scan_table = (UWORD8 *)gapv_ihevc_invscan[2]; |
| |
| for(i = 0; i < coef_num; i++) |
| { |
| SEV_PARSE("scaling_list_delta_coef", |
| scaling_list_delta_coef, ps_bitstrm); |
| next_coef = (next_coef + scaling_list_delta_coef + 256) |
| % 256; |
| |
| offset = scan_table[i]; |
| offset = (offset >> 3) * 32 * 4 + (offset & 0x7) * 4; |
| |
| for(j = 0; j < 4; j++) |
| { |
| pi2_scaling_mat_offset[offset + j * 32] = next_coef; |
| pi2_scaling_mat_offset[offset + 1 + j * 32] = next_coef; |
| pi2_scaling_mat_offset[offset + 2 + j * 32] = next_coef; |
| pi2_scaling_mat_offset[offset + 3 + j * 32] = next_coef; |
| } |
| pi2_scaling_mat_offset[0] = dc_value; |
| } |
| } |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses VPS (Video Parameter Set) |
| * |
| * @par Description: |
| * Parse Video Parameter Set as per Section 7.3.2.1 |
| * update vps structure corresponding to vps ID |
| * Till parsing VPS id, the elements are stored in local variables and are copied |
| * later |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context. |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_parse_vps(codec_t *ps_codec) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 i; |
| WORD32 value; |
| WORD32 vps_id; |
| vps_t *ps_vps; |
| bitstrm_t *ps_bitstrm = &ps_codec->s_parse.s_bitstrm; |
| BITS_PARSE("vps_video_parameter_set_id", value, ps_bitstrm, 4); |
| vps_id = value; |
| |
| if(vps_id >= MAX_VPS_CNT) |
| { |
| ps_codec->s_parse.i4_error_code = IHEVCD_UNSUPPORTED_VPS_ID; |
| return IHEVCD_UNSUPPORTED_VPS_ID; |
| } |
| |
| |
| ps_vps = (ps_codec->s_parse.ps_vps_base + vps_id); |
| |
| ps_vps->i1_vps_id = vps_id; |
| |
| BITS_PARSE("vps_reserved_three_2bits", value, ps_bitstrm, 2); |
| ASSERT(value == 3); |
| |
| BITS_PARSE("vps_max_layers_minus1", value, ps_bitstrm, 6); |
| //ps_vps->i1_vps_max_layers = value + 1; |
| |
| |
| |
| BITS_PARSE("vps_max_sub_layers_minus1", value, ps_bitstrm, 3); |
| ps_vps->i1_vps_max_sub_layers = value + 1; |
| |
| ASSERT(ps_vps->i1_vps_max_sub_layers < VPS_MAX_SUB_LAYERS); |
| |
| BITS_PARSE("vps_temporal_id_nesting_flag", value, ps_bitstrm, 1); |
| ps_vps->i1_vps_temporal_id_nesting_flag = value; |
| |
| BITS_PARSE("vps_reserved_ffff_16bits", value, ps_bitstrm, 16); |
| ASSERT(value == 0xFFFF); |
| // profile_and_level( 1, vps_max_sub_layers_minus1 ) |
| ret = ihevcd_profile_tier_level(ps_bitstrm, &(ps_vps->s_ptl), |
| 1, (ps_vps->i1_vps_max_sub_layers - 1)); |
| |
| BITS_PARSE("vps_sub_layer_ordering_info_present_flag", value, ps_bitstrm, 1); |
| ps_vps->i1_sub_layer_ordering_info_present_flag = value; |
| i = (ps_vps->i1_sub_layer_ordering_info_present_flag ? |
| 0 : (ps_vps->i1_vps_max_sub_layers - 1)); |
| for(; i < ps_vps->i1_vps_max_sub_layers; i++) |
| { |
| UEV_PARSE("vps_max_dec_pic_buffering[i]", value, ps_bitstrm); |
| ps_vps->ai1_vps_max_dec_pic_buffering[i] = value; |
| |
| /* vps_num_reorder_pics (no max) used in print in order to match with HM */ |
| UEV_PARSE("vps_num_reorder_pics[i]", value, ps_bitstrm); |
| ps_vps->ai1_vps_max_num_reorder_pics[i] = value; |
| |
| UEV_PARSE("vps_max_latency_increase[i]", value, ps_bitstrm); |
| ps_vps->ai1_vps_max_latency_increase[i] = value; |
| } |
| |
| |
| |
| BITS_PARSE("vps_max_layer_id", value, ps_bitstrm, 6); |
| //ps_vps->i1_vps_max_layer_id = value; |
| |
| UEV_PARSE("vps_num_layer_sets_minus1", value, ps_bitstrm); |
| //ps_vps->i1_vps_num_layer_sets = value + 1; |
| |
| BITS_PARSE("vps_timing_info_present_flag", value, ps_bitstrm, 1); |
| //ps_vps->i1_vps_timing_info_present_flag = value; |
| |
| |
| |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses SPS (Sequence Parameter Set) |
| * sequence_parameter_set_rbsp() |
| * |
| * @par Description: |
| * Parse Sequence Parameter Set as per section Section: 7.3.2.2 |
| * The sps is written to a temporary buffer and copied later to the |
| * appropriate location |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_parse_sps(codec_t *ps_codec) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 value; |
| |
| WORD32 i; |
| WORD32 vps_id; |
| WORD32 sps_max_sub_layers; |
| WORD32 sps_id; |
| WORD32 sps_temporal_id_nesting_flag; |
| sps_t *ps_sps; |
| profile_tier_lvl_info_t s_ptl; |
| bitstrm_t *ps_bitstrm = &ps_codec->s_parse.s_bitstrm; |
| WORD32 ctb_log2_size_y = 0; |
| |
| |
| BITS_PARSE("video_parameter_set_id", value, ps_bitstrm, 4); |
| vps_id = value; |
| vps_id = CLIP3(vps_id, 0, MAX_VPS_CNT - 1); |
| |
| BITS_PARSE("sps_max_sub_layers_minus1", value, ps_bitstrm, 3); |
| sps_max_sub_layers = value + 1; |
| sps_max_sub_layers = CLIP3(sps_max_sub_layers, 1, 7); |
| |
| BITS_PARSE("sps_temporal_id_nesting_flag", value, ps_bitstrm, 1); |
| sps_temporal_id_nesting_flag = value; |
| |
| //profile_and_level( 1, sps_max_sub_layers_minus1 ) |
| ret = ihevcd_profile_tier_level(ps_bitstrm, &(s_ptl), 1, |
| (sps_max_sub_layers - 1)); |
| |
| UEV_PARSE("seq_parameter_set_id", value, ps_bitstrm); |
| sps_id = value; |
| |
| if((sps_id >= MAX_SPS_CNT) || (sps_id < 0)) |
| { |
| if(ps_codec->i4_sps_done) |
| return IHEVCD_UNSUPPORTED_SPS_ID; |
| else |
| sps_id = 0; |
| } |
| |
| |
| ps_sps = (ps_codec->s_parse.ps_sps_base + MAX_SPS_CNT - 1); |
| ps_sps->i1_sps_id = sps_id; |
| ps_sps->i1_vps_id = vps_id; |
| ps_sps->i1_sps_max_sub_layers = sps_max_sub_layers; |
| ps_sps->i1_sps_temporal_id_nesting_flag = sps_temporal_id_nesting_flag; |
| /* This is used only during initialization to get reorder count etc */ |
| ps_codec->i4_sps_id = sps_id; |
| memcpy(&ps_sps->s_ptl, &s_ptl, sizeof(profile_tier_lvl_info_t)); |
| |
| UEV_PARSE("chroma_format_idc", value, ps_bitstrm); |
| ps_sps->i1_chroma_format_idc = value; |
| |
| if(ps_sps->i1_chroma_format_idc != CHROMA_FMT_IDC_YUV420) |
| { |
| ps_codec->s_parse.i4_error_code = IHEVCD_UNSUPPORTED_CHROMA_FMT_IDC; |
| return (IHEVCD_ERROR_T)IHEVCD_UNSUPPORTED_CHROMA_FMT_IDC; |
| } |
| |
| if(CHROMA_FMT_IDC_YUV444_PLANES == ps_sps->i1_chroma_format_idc) |
| { |
| BITS_PARSE("separate_colour_plane_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_separate_colour_plane_flag = value; |
| } |
| else |
| { |
| ps_sps->i1_separate_colour_plane_flag = 0; |
| } |
| |
| UEV_PARSE("pic_width_in_luma_samples", value, ps_bitstrm); |
| ps_sps->i2_pic_width_in_luma_samples = value; |
| |
| UEV_PARSE("pic_height_in_luma_samples", value, ps_bitstrm); |
| ps_sps->i2_pic_height_in_luma_samples = value; |
| |
| if((0 >= ps_sps->i2_pic_width_in_luma_samples) || (0 >= ps_sps->i2_pic_height_in_luma_samples)) |
| return IHEVCD_INVALID_PARAMETER; |
| |
| /* i2_pic_width_in_luma_samples and i2_pic_height_in_luma_samples |
| should be multiples of min_cb_size. Here these are aligned to 8, |
| i.e. smallest CB size */ |
| ps_sps->i2_pic_width_in_luma_samples = ALIGN8(ps_sps->i2_pic_width_in_luma_samples); |
| ps_sps->i2_pic_height_in_luma_samples = ALIGN8(ps_sps->i2_pic_height_in_luma_samples); |
| |
| BITS_PARSE("pic_cropping_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_pic_cropping_flag = value; |
| |
| if(ps_sps->i1_pic_cropping_flag) |
| { |
| |
| UEV_PARSE("pic_crop_left_offset", value, ps_bitstrm); |
| ps_sps->i2_pic_crop_left_offset = value; |
| |
| UEV_PARSE("pic_crop_right_offset", value, ps_bitstrm); |
| ps_sps->i2_pic_crop_right_offset = value; |
| |
| UEV_PARSE("pic_crop_top_offset", value, ps_bitstrm); |
| ps_sps->i2_pic_crop_top_offset = value; |
| |
| UEV_PARSE("pic_crop_bottom_offset", value, ps_bitstrm); |
| ps_sps->i2_pic_crop_bottom_offset = value; |
| } |
| else |
| { |
| ps_sps->i2_pic_crop_left_offset = 0; |
| ps_sps->i2_pic_crop_right_offset = 0; |
| ps_sps->i2_pic_crop_top_offset = 0; |
| ps_sps->i2_pic_crop_bottom_offset = 0; |
| } |
| |
| |
| UEV_PARSE("bit_depth_luma_minus8", value, ps_bitstrm); |
| if(0 != value) |
| return IHEVCD_UNSUPPORTED_BIT_DEPTH; |
| |
| UEV_PARSE("bit_depth_chroma_minus8", value, ps_bitstrm); |
| if(0 != value) |
| return IHEVCD_UNSUPPORTED_BIT_DEPTH; |
| |
| UEV_PARSE("log2_max_pic_order_cnt_lsb_minus4", value, ps_bitstrm); |
| ps_sps->i1_log2_max_pic_order_cnt_lsb = value + 4; |
| |
| BITS_PARSE("sps_sub_layer_ordering_info_present_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_sps_sub_layer_ordering_info_present_flag = value; |
| |
| |
| i = (ps_sps->i1_sps_sub_layer_ordering_info_present_flag ? 0 : (ps_sps->i1_sps_max_sub_layers - 1)); |
| for(; i < ps_sps->i1_sps_max_sub_layers; i++) |
| { |
| UEV_PARSE("max_dec_pic_buffering", value, ps_bitstrm); |
| ps_sps->ai1_sps_max_dec_pic_buffering[i] = value + 1; |
| |
| if(ps_sps->ai1_sps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) |
| { |
| return IHEVCD_INVALID_PARAMETER; |
| } |
| |
| UEV_PARSE("num_reorder_pics", value, ps_bitstrm); |
| ps_sps->ai1_sps_max_num_reorder_pics[i] = value; |
| |
| if(ps_sps->ai1_sps_max_num_reorder_pics[i] > ps_sps->ai1_sps_max_dec_pic_buffering[i]) |
| { |
| return IHEVCD_INVALID_PARAMETER; |
| } |
| |
| UEV_PARSE("max_latency_increase", value, ps_bitstrm); |
| ps_sps->ai1_sps_max_latency_increase[i] = value; |
| } |
| UEV_PARSE("log2_min_coding_block_size_minus3", value, ps_bitstrm); |
| ps_sps->i1_log2_min_coding_block_size = value + 3; |
| |
| UEV_PARSE("log2_diff_max_min_coding_block_size", value, ps_bitstrm); |
| ps_sps->i1_log2_diff_max_min_coding_block_size = value; |
| |
| ctb_log2_size_y = ps_sps->i1_log2_min_coding_block_size + ps_sps->i1_log2_diff_max_min_coding_block_size; |
| |
| UEV_PARSE("log2_min_transform_block_size_minus2", value, ps_bitstrm); |
| ps_sps->i1_log2_min_transform_block_size = value + 2; |
| |
| UEV_PARSE("log2_diff_max_min_transform_block_size", value, ps_bitstrm); |
| ps_sps->i1_log2_diff_max_min_transform_block_size = value; |
| |
| ps_sps->i1_log2_max_transform_block_size = ps_sps->i1_log2_min_transform_block_size + |
| ps_sps->i1_log2_diff_max_min_transform_block_size; |
| |
| if ((ps_sps->i1_log2_max_transform_block_size < 0) || |
| (ps_sps->i1_log2_max_transform_block_size > MIN(ctb_log2_size_y, 5))) |
| { |
| return IHEVCD_INVALID_PARAMETER; |
| } |
| |
| ps_sps->i1_log2_ctb_size = ps_sps->i1_log2_min_coding_block_size + |
| ps_sps->i1_log2_diff_max_min_coding_block_size; |
| |
| if((ps_sps->i1_log2_min_coding_block_size < 3) || |
| (ps_sps->i1_log2_min_transform_block_size < 2) || |
| (ps_sps->i1_log2_diff_max_min_transform_block_size < 0) || |
| (ps_sps->i1_log2_max_transform_block_size > ps_sps->i1_log2_ctb_size) || |
| (ps_sps->i1_log2_ctb_size < 4) || |
| (ps_sps->i1_log2_ctb_size > 6)) |
| { |
| return IHEVCD_INVALID_PARAMETER; |
| } |
| |
| ps_sps->i1_log2_min_pcm_coding_block_size = 0; |
| ps_sps->i1_log2_diff_max_min_pcm_coding_block_size = 0; |
| |
| UEV_PARSE("max_transform_hierarchy_depth_inter", value, ps_bitstrm); |
| ps_sps->i1_max_transform_hierarchy_depth_inter = value; |
| |
| UEV_PARSE("max_transform_hierarchy_depth_intra", value, ps_bitstrm); |
| ps_sps->i1_max_transform_hierarchy_depth_intra = value; |
| |
| /* String has a d (enabled) in order to match with HM */ |
| BITS_PARSE("scaling_list_enabled_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_scaling_list_enable_flag = value; |
| |
| if(ps_sps->i1_scaling_list_enable_flag) |
| { |
| COPY_DEFAULT_SCALING_LIST(ps_sps->pi2_scaling_mat); |
| BITS_PARSE("sps_scaling_list_data_present_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_sps_scaling_list_data_present_flag = value; |
| |
| if(ps_sps->i1_sps_scaling_list_data_present_flag) |
| ihevcd_scaling_list_data(ps_codec, ps_sps->pi2_scaling_mat); |
| } |
| else |
| { |
| COPY_FLAT_SCALING_LIST(ps_sps->pi2_scaling_mat); |
| } |
| /* String is asymmetric_motion_partitions_enabled_flag instead of amp_enabled_flag in order to match with HM */ |
| BITS_PARSE("asymmetric_motion_partitions_enabled_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_amp_enabled_flag = value; |
| |
| BITS_PARSE("sample_adaptive_offset_enabled_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_sample_adaptive_offset_enabled_flag = value; |
| |
| BITS_PARSE("pcm_enabled_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_pcm_enabled_flag = value; |
| |
| if(ps_sps->i1_pcm_enabled_flag) |
| { |
| BITS_PARSE("pcm_sample_bit_depth_luma", value, ps_bitstrm, 4); |
| ps_sps->i1_pcm_sample_bit_depth_luma = value + 1; |
| |
| BITS_PARSE("pcm_sample_bit_depth_chroma", value, ps_bitstrm, 4); |
| ps_sps->i1_pcm_sample_bit_depth_chroma = value + 1; |
| |
| UEV_PARSE("log2_min_pcm_coding_block_size_minus3", value, ps_bitstrm); |
| ps_sps->i1_log2_min_pcm_coding_block_size = value + 3; |
| |
| UEV_PARSE("log2_diff_max_min_pcm_coding_block_size", value, ps_bitstrm); |
| ps_sps->i1_log2_diff_max_min_pcm_coding_block_size = value; |
| BITS_PARSE("pcm_loop_filter_disable_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_pcm_loop_filter_disable_flag = value; |
| |
| } |
| UEV_PARSE("num_short_term_ref_pic_sets", value, ps_bitstrm); |
| ps_sps->i1_num_short_term_ref_pic_sets = value; |
| |
| ps_sps->i1_num_short_term_ref_pic_sets = CLIP3(ps_sps->i1_num_short_term_ref_pic_sets, 0, MAX_STREF_PICS_SPS); |
| |
| for(i = 0; i < ps_sps->i1_num_short_term_ref_pic_sets; i++) |
| ihevcd_short_term_ref_pic_set(ps_bitstrm, &ps_sps->as_stref_picset[0], ps_sps->i1_num_short_term_ref_pic_sets, i, &ps_sps->as_stref_picset[i]); |
| |
| BITS_PARSE("long_term_ref_pics_present_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_long_term_ref_pics_present_flag = value; |
| |
| if(ps_sps->i1_long_term_ref_pics_present_flag) |
| { |
| UEV_PARSE("num_long_term_ref_pics_sps", value, ps_bitstrm); |
| ps_sps->i1_num_long_term_ref_pics_sps = value; |
| |
| for(i = 0; i < ps_sps->i1_num_long_term_ref_pics_sps; i++) |
| { |
| BITS_PARSE("lt_ref_pic_poc_lsb_sps[ i ]", value, ps_bitstrm, ps_sps->i1_log2_max_pic_order_cnt_lsb); |
| ps_sps->ai1_lt_ref_pic_poc_lsb_sps[i] = value; |
| |
| BITS_PARSE("used_by_curr_pic_lt_sps_flag[ i ]", value, ps_bitstrm, 1); |
| ps_sps->ai1_used_by_curr_pic_lt_sps_flag[i] = value; |
| } |
| } |
| |
| BITS_PARSE("sps_temporal_mvp_enable_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_sps_temporal_mvp_enable_flag = value; |
| |
| /* Print matches HM 8-2 */ |
| BITS_PARSE("sps_strong_intra_smoothing_enable_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_strong_intra_smoothing_enable_flag = value; |
| |
| BITS_PARSE("vui_parameters_present_flag", value, ps_bitstrm, 1); |
| ps_sps->i1_vui_parameters_present_flag = value; |
| |
| if(ps_sps->i1_vui_parameters_present_flag) |
| ihevcd_parse_vui_parameters(ps_bitstrm, |
| &ps_sps->s_vui_parameters, |
| ps_sps->i1_sps_max_sub_layers - 1); |
| |
| BITS_PARSE("sps_extension_flag", value, ps_bitstrm, 1); |
| |
| if((UWORD8 *)ps_bitstrm->pu4_buf > ps_bitstrm->pu1_buf_max) |
| { |
| return IHEVCD_INVALID_PARAMETER; |
| } |
| |
| { |
| WORD32 numerator; |
| WORD32 ceil_offset; |
| |
| ceil_offset = (1 << ps_sps->i1_log2_ctb_size) - 1; |
| numerator = ps_sps->i2_pic_width_in_luma_samples; |
| |
| ps_sps->i2_pic_wd_in_ctb = ((numerator + ceil_offset) / |
| (1 << ps_sps->i1_log2_ctb_size)); |
| |
| numerator = ps_sps->i2_pic_height_in_luma_samples; |
| ps_sps->i2_pic_ht_in_ctb = ((numerator + ceil_offset) / |
| (1 << ps_sps->i1_log2_ctb_size)); |
| |
| ps_sps->i4_pic_size_in_ctb = ps_sps->i2_pic_ht_in_ctb * |
| ps_sps->i2_pic_wd_in_ctb; |
| |
| if(0 == ps_codec->i4_sps_done) |
| ps_codec->s_parse.i4_next_ctb_indx = ps_sps->i4_pic_size_in_ctb; |
| |
| numerator = ps_sps->i2_pic_width_in_luma_samples; |
| ps_sps->i2_pic_wd_in_min_cb = numerator / |
| (1 << ps_sps->i1_log2_min_coding_block_size); |
| |
| numerator = ps_sps->i2_pic_height_in_luma_samples; |
| ps_sps->i2_pic_ht_in_min_cb = numerator / |
| (1 << ps_sps->i1_log2_min_coding_block_size); |
| } |
| if((0 != ps_codec->i4_first_pic_done) && |
| ((ps_codec->i4_wd != ps_sps->i2_pic_width_in_luma_samples) || |
| (ps_codec->i4_ht != ps_sps->i2_pic_height_in_luma_samples))) |
| { |
| ps_codec->i4_reset_flag = 1; |
| return (IHEVCD_ERROR_T)IVD_RES_CHANGED; |
| } |
| |
| /* Update display width and display height */ |
| { |
| WORD32 disp_wd, disp_ht; |
| WORD32 crop_unit_x, crop_unit_y; |
| crop_unit_x = 1; |
| crop_unit_y = 1; |
| |
| if(CHROMA_FMT_IDC_YUV420 == ps_sps->i1_chroma_format_idc) |
| { |
| crop_unit_x = 2; |
| crop_unit_y = 2; |
| } |
| |
| disp_wd = ps_sps->i2_pic_width_in_luma_samples; |
| disp_wd -= ps_sps->i2_pic_crop_left_offset * crop_unit_x; |
| disp_wd -= ps_sps->i2_pic_crop_right_offset * crop_unit_x; |
| |
| |
| disp_ht = ps_sps->i2_pic_height_in_luma_samples; |
| disp_ht -= ps_sps->i2_pic_crop_top_offset * crop_unit_y; |
| disp_ht -= ps_sps->i2_pic_crop_bottom_offset * crop_unit_y; |
| |
| if((0 >= disp_wd) || (0 >= disp_ht)) |
| return IHEVCD_INVALID_PARAMETER; |
| |
| ps_codec->i4_disp_wd = disp_wd; |
| ps_codec->i4_disp_ht = disp_ht; |
| |
| |
| ps_codec->i4_wd = ps_sps->i2_pic_width_in_luma_samples; |
| ps_codec->i4_ht = ps_sps->i2_pic_height_in_luma_samples; |
| |
| { |
| WORD32 ref_strd; |
| ref_strd = ALIGN32(ps_sps->i2_pic_width_in_luma_samples + PAD_WD); |
| if(ps_codec->i4_strd < ref_strd) |
| { |
| ps_codec->i4_strd = ref_strd; |
| } |
| } |
| |
| if(0 == ps_codec->i4_share_disp_buf) |
| { |
| if(ps_codec->i4_disp_strd < ps_codec->i4_disp_wd) |
| { |
| ps_codec->i4_disp_strd = ps_codec->i4_disp_wd; |
| } |
| } |
| else |
| { |
| if(ps_codec->i4_disp_strd < ps_codec->i4_strd) |
| { |
| ps_codec->i4_disp_strd = ps_codec->i4_strd; |
| } |
| } |
| } |
| |
| ps_codec->i4_sps_done = 1; |
| return ret; |
| } |
| |
| |
| void ihevcd_unmark_pps(codec_t *ps_codec, WORD32 sps_id) |
| { |
| WORD32 pps_id = 0; |
| pps_t *ps_pps = ps_codec->ps_pps_base; |
| |
| for(pps_id = 0; pps_id < MAX_PPS_CNT - 1; pps_id++, ps_pps++) |
| { |
| if((ps_pps->i1_pps_valid) && |
| (ps_pps->i1_sps_id == sps_id)) |
| ps_pps->i1_pps_valid = 0; |
| } |
| } |
| |
| |
| void ihevcd_copy_sps(codec_t *ps_codec, WORD32 sps_id, WORD32 sps_id_ref) |
| { |
| sps_t *ps_sps, *ps_sps_ref; |
| WORD16 *pi2_scaling_mat_backup; |
| WORD32 scaling_mat_size; |
| |
| SCALING_MAT_SIZE(scaling_mat_size); |
| ps_sps_ref = ps_codec->ps_sps_base + sps_id_ref; |
| ps_sps = ps_codec->ps_sps_base + sps_id; |
| |
| if(ps_sps->i1_sps_valid) |
| { |
| if((ps_sps->i1_log2_ctb_size != ps_sps_ref->i1_log2_ctb_size) || |
| (ps_sps->i2_pic_wd_in_ctb != ps_sps_ref->i2_pic_wd_in_ctb) || |
| (ps_sps->i2_pic_ht_in_ctb != ps_sps_ref->i2_pic_ht_in_ctb)) |
| { |
| ihevcd_unmark_pps(ps_codec, sps_id); |
| } |
| } |
| |
| pi2_scaling_mat_backup = ps_sps->pi2_scaling_mat; |
| |
| memcpy(ps_sps, ps_sps_ref, sizeof(sps_t)); |
| ps_sps->pi2_scaling_mat = pi2_scaling_mat_backup; |
| memcpy(ps_sps->pi2_scaling_mat, ps_sps_ref->pi2_scaling_mat, scaling_mat_size * sizeof(WORD16)); |
| ps_sps->i1_sps_valid = 1; |
| |
| ps_codec->s_parse.ps_sps = ps_sps; |
| } |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses PPS (Picture Parameter Set) |
| * |
| * @par Description: |
| * Parse Picture Parameter Set as per section Section: 7.3.2.3 |
| * The pps is written to a temporary buffer and copied later to the |
| * appropriate location |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_parse_pps(codec_t *ps_codec) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| WORD32 value; |
| WORD32 pps_id; |
| |
| pps_t *ps_pps; |
| sps_t *ps_sps; |
| bitstrm_t *ps_bitstrm = &ps_codec->s_parse.s_bitstrm; |
| |
| |
| if(0 == ps_codec->i4_sps_done) |
| return IHEVCD_INVALID_HEADER; |
| |
| UEV_PARSE("pic_parameter_set_id", value, ps_bitstrm); |
| |
| pps_id = value; |
| if((pps_id >= MAX_PPS_CNT) || (pps_id < 0)) |
| { |
| if(ps_codec->i4_pps_done) |
| return IHEVCD_UNSUPPORTED_PPS_ID; |
| else |
| pps_id = 0; |
| } |
| |
| |
| ps_pps = (ps_codec->s_parse.ps_pps_base + MAX_PPS_CNT - 1); |
| |
| ps_pps->i1_pps_id = pps_id; |
| |
| UEV_PARSE("seq_parameter_set_id", value, ps_bitstrm); |
| ps_pps->i1_sps_id = value; |
| ps_pps->i1_sps_id = CLIP3(ps_pps->i1_sps_id, 0, MAX_SPS_CNT - 2); |
| |
| ps_sps = (ps_codec->s_parse.ps_sps_base + ps_pps->i1_sps_id); |
| |
| /* If the SPS that is being referred to has not been parsed, |
| * copy an existing SPS to the current location */ |
| if(0 == ps_sps->i1_sps_valid) |
| { |
| return IHEVCD_INVALID_HEADER; |
| |
| /* |
| sps_t *ps_sps_ref = ps_codec->ps_sps_base; |
| while(0 == ps_sps_ref->i1_sps_valid) |
| ps_sps_ref++; |
| ihevcd_copy_sps(ps_codec, ps_pps->i1_sps_id, ps_sps_ref->i1_sps_id); |
| */ |
| } |
| |
| BITS_PARSE("dependent_slices_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_dependent_slice_enabled_flag = value; |
| |
| BITS_PARSE("output_flag_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_output_flag_present_flag = value; |
| |
| BITS_PARSE("num_extra_slice_header_bits", value, ps_bitstrm, 3); |
| ps_pps->i1_num_extra_slice_header_bits = value; |
| |
| |
| BITS_PARSE("sign_data_hiding_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_sign_data_hiding_flag = value; |
| |
| BITS_PARSE("cabac_init_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_cabac_init_present_flag = value; |
| |
| UEV_PARSE("num_ref_idx_l0_default_active_minus1", value, ps_bitstrm); |
| ps_pps->i1_num_ref_idx_l0_default_active = value + 1; |
| |
| UEV_PARSE("num_ref_idx_l1_default_active_minus1", value, ps_bitstrm); |
| ps_pps->i1_num_ref_idx_l1_default_active = value + 1; |
| |
| SEV_PARSE("pic_init_qp_minus26", value, ps_bitstrm); |
| ps_pps->i1_pic_init_qp = value + 26; |
| |
| BITS_PARSE("constrained_intra_pred_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_constrained_intra_pred_flag = value; |
| |
| BITS_PARSE("transform_skip_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_transform_skip_enabled_flag = value; |
| |
| BITS_PARSE("cu_qp_delta_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_cu_qp_delta_enabled_flag = value; |
| |
| if(ps_pps->i1_cu_qp_delta_enabled_flag) |
| { |
| UEV_PARSE("diff_cu_qp_delta_depth", value, ps_bitstrm); |
| ps_pps->i1_diff_cu_qp_delta_depth = value; |
| } |
| else |
| { |
| ps_pps->i1_diff_cu_qp_delta_depth = 0; |
| } |
| ps_pps->i1_log2_min_cu_qp_delta_size = ps_sps->i1_log2_ctb_size - ps_pps->i1_diff_cu_qp_delta_depth; |
| /* Print different */ |
| SEV_PARSE("cb_qp_offset", value, ps_bitstrm); |
| ps_pps->i1_pic_cb_qp_offset = value; |
| |
| /* Print different */ |
| SEV_PARSE("cr_qp_offset", value, ps_bitstrm); |
| ps_pps->i1_pic_cr_qp_offset = value; |
| |
| /* Print different */ |
| BITS_PARSE("slicelevel_chroma_qp_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_pic_slice_level_chroma_qp_offsets_present_flag = value; |
| |
| BITS_PARSE("weighted_pred_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_weighted_pred_flag = value; |
| |
| BITS_PARSE("weighted_bipred_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_weighted_bipred_flag = value; |
| |
| BITS_PARSE("transquant_bypass_enable_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_transquant_bypass_enable_flag = value; |
| |
| BITS_PARSE("tiles_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_tiles_enabled_flag = value; |
| |
| BITS_PARSE("entropy_coding_sync_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_entropy_coding_sync_enabled_flag = value; |
| |
| ps_pps->i1_loop_filter_across_tiles_enabled_flag = 0; |
| if(ps_pps->i1_tiles_enabled_flag) |
| { |
| UEV_PARSE("num_tile_columns_minus1", value, ps_bitstrm); |
| ps_pps->i1_num_tile_columns = value + 1; |
| |
| UEV_PARSE("num_tile_rows_minus1", value, ps_bitstrm); |
| ps_pps->i1_num_tile_rows = value + 1; |
| |
| if((ps_pps->i1_num_tile_columns < 1) || |
| (ps_pps->i1_num_tile_columns > ps_sps->i2_pic_wd_in_ctb) || |
| (ps_pps->i1_num_tile_rows < 1) || |
| (ps_pps->i1_num_tile_rows > ps_sps->i2_pic_ht_in_ctb)) |
| return IHEVCD_INVALID_HEADER; |
| |
| BITS_PARSE("uniform_spacing_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_uniform_spacing_flag = value; |
| |
| |
| { |
| |
| WORD32 start; |
| WORD32 i, j; |
| |
| |
| start = 0; |
| for(i = 0; i < ps_pps->i1_num_tile_columns; i++) |
| { |
| tile_t *ps_tile; |
| if(!ps_pps->i1_uniform_spacing_flag) |
| { |
| if(i < (ps_pps->i1_num_tile_columns - 1)) |
| { |
| UEV_PARSE("column_width_minus1[ i ]", value, ps_bitstrm); |
| value += 1; |
| } |
| else |
| { |
| value = ps_sps->i2_pic_wd_in_ctb - start; |
| } |
| } |
| else |
| { |
| value = ((i + 1) * ps_sps->i2_pic_wd_in_ctb) / ps_pps->i1_num_tile_columns - |
| (i * ps_sps->i2_pic_wd_in_ctb) / ps_pps->i1_num_tile_columns; |
| } |
| |
| for(j = 0; j < ps_pps->i1_num_tile_rows; j++) |
| { |
| ps_tile = ps_pps->ps_tile + j * ps_pps->i1_num_tile_columns + i; |
| ps_tile->u1_pos_x = start; |
| ps_tile->u2_wd = value; |
| } |
| start += value; |
| |
| if((start > ps_sps->i2_pic_wd_in_ctb) || |
| (value <= 0)) |
| return IHEVCD_INVALID_HEADER; |
| } |
| |
| start = 0; |
| for(i = 0; i < (ps_pps->i1_num_tile_rows); i++) |
| { |
| tile_t *ps_tile; |
| if(!ps_pps->i1_uniform_spacing_flag) |
| { |
| if(i < (ps_pps->i1_num_tile_rows - 1)) |
| { |
| |
| UEV_PARSE("row_height_minus1[ i ]", value, ps_bitstrm); |
| value += 1; |
| } |
| else |
| { |
| value = ps_sps->i2_pic_ht_in_ctb - start; |
| } |
| } |
| else |
| { |
| value = ((i + 1) * ps_sps->i2_pic_ht_in_ctb) / ps_pps->i1_num_tile_rows - |
| (i * ps_sps->i2_pic_ht_in_ctb) / ps_pps->i1_num_tile_rows; |
| } |
| |
| for(j = 0; j < ps_pps->i1_num_tile_columns; j++) |
| { |
| ps_tile = ps_pps->ps_tile + i * ps_pps->i1_num_tile_columns + j; |
| ps_tile->u1_pos_y = start; |
| ps_tile->u2_ht = value; |
| } |
| start += value; |
| |
| if((start > ps_sps->i2_pic_ht_in_ctb) || |
| (value <= 0)) |
| return IHEVCD_INVALID_HEADER; |
| } |
| } |
| |
| |
| BITS_PARSE("loop_filter_across_tiles_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_loop_filter_across_tiles_enabled_flag = value; |
| |
| } |
| else |
| { |
| /* If tiles are not present, set first tile in each PPS to have tile |
| width and height equal to picture width and height */ |
| ps_pps->i1_num_tile_columns = 1; |
| ps_pps->i1_num_tile_rows = 1; |
| ps_pps->i1_uniform_spacing_flag = 1; |
| |
| ps_pps->ps_tile->u1_pos_x = 0; |
| ps_pps->ps_tile->u1_pos_y = 0; |
| ps_pps->ps_tile->u2_wd = ps_sps->i2_pic_wd_in_ctb; |
| ps_pps->ps_tile->u2_ht = ps_sps->i2_pic_ht_in_ctb; |
| } |
| |
| BITS_PARSE("loop_filter_across_slices_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_loop_filter_across_slices_enabled_flag = value; |
| |
| BITS_PARSE("deblocking_filter_control_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_deblocking_filter_control_present_flag = value; |
| |
| /* Default values */ |
| ps_pps->i1_pic_disable_deblocking_filter_flag = 0; |
| ps_pps->i1_deblocking_filter_override_enabled_flag = 0; |
| ps_pps->i1_beta_offset_div2 = 0; |
| ps_pps->i1_tc_offset_div2 = 0; |
| |
| if(ps_pps->i1_deblocking_filter_control_present_flag) |
| { |
| |
| BITS_PARSE("deblocking_filter_override_enabled_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_deblocking_filter_override_enabled_flag = value; |
| |
| BITS_PARSE("pic_disable_deblocking_filter_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_pic_disable_deblocking_filter_flag = value; |
| |
| if(!ps_pps->i1_pic_disable_deblocking_filter_flag) |
| { |
| |
| SEV_PARSE("pps_beta_offset_div2", value, ps_bitstrm); |
| ps_pps->i1_beta_offset_div2 = value; |
| |
| SEV_PARSE("pps_tc_offset_div2", value, ps_bitstrm); |
| ps_pps->i1_tc_offset_div2 = value; |
| |
| } |
| } |
| |
| BITS_PARSE("pps_scaling_list_data_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_pps_scaling_list_data_present_flag = value; |
| |
| if(ps_pps->i1_pps_scaling_list_data_present_flag) |
| { |
| COPY_DEFAULT_SCALING_LIST(ps_pps->pi2_scaling_mat); |
| ihevcd_scaling_list_data(ps_codec, ps_pps->pi2_scaling_mat); |
| } |
| |
| BITS_PARSE("lists_modification_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_lists_modification_present_flag = value; |
| UEV_PARSE("log2_parallel_merge_level_minus2", value, ps_bitstrm); |
| ps_pps->i1_log2_parallel_merge_level = value + 2; |
| |
| BITS_PARSE("slice_header_extension_present_flag", value, ps_bitstrm, 1); |
| ps_pps->i1_slice_header_extension_present_flag = value; |
| /* Not present in HM */ |
| BITS_PARSE("pps_extension_flag", value, ps_bitstrm, 1); |
| |
| ps_codec->i4_pps_done = 1; |
| return ret; |
| } |
| |
| |
| void ihevcd_copy_pps(codec_t *ps_codec, WORD32 pps_id, WORD32 pps_id_ref) |
| { |
| pps_t *ps_pps, *ps_pps_ref; |
| WORD16 *pi2_scaling_mat_backup; |
| WORD32 scaling_mat_size; |
| tile_t *ps_tile_backup; |
| WORD32 max_tile_cols, max_tile_rows; |
| WORD32 wd, ht; |
| wd = ALIGN64(ps_codec->i4_wd); |
| ht = ALIGN64(ps_codec->i4_ht); |
| |
| SCALING_MAT_SIZE(scaling_mat_size); |
| max_tile_cols = (wd + MIN_TILE_WD - 1) / MIN_TILE_WD; |
| max_tile_rows = (ht + MIN_TILE_HT - 1) / MIN_TILE_HT; |
| |
| ps_pps_ref = ps_codec->ps_pps_base + pps_id_ref; |
| ps_pps = ps_codec->ps_pps_base + pps_id; |
| |
| pi2_scaling_mat_backup = ps_pps->pi2_scaling_mat; |
| ps_tile_backup = ps_pps->ps_tile; |
| |
| memcpy(ps_pps, ps_pps_ref, sizeof(pps_t)); |
| ps_pps->pi2_scaling_mat = pi2_scaling_mat_backup; |
| ps_pps->ps_tile = ps_tile_backup; |
| memcpy(ps_pps->pi2_scaling_mat, ps_pps_ref->pi2_scaling_mat, scaling_mat_size * sizeof(WORD16)); |
| memcpy(ps_pps->ps_tile, ps_pps_ref->ps_tile, max_tile_cols * max_tile_rows * sizeof(tile_t)); |
| |
| ps_pps->i1_pps_valid = 1; |
| |
| ps_codec->s_parse.ps_pps = ps_pps; |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses SEI (Supplemental Enhancement Information) |
| * |
| * @par Description: |
| * Parses SEI (Supplemental Enhancement Information) as per Section: 7.3.7 |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| IHEVCD_ERROR_T ihevcd_parse_sei(codec_t *ps_codec) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| UNUSED(ps_codec); |
| return ret; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Parses Access unit delimiter |
| * |
| * @par Description: |
| * Parses Access unit delimiter as per section Section: 7.3.2.5 |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @returns Error code from IHEVCD_ERROR_T |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| WORD32 ihevcd_parse_aud(codec_t *ps_codec) |
| { |
| IHEVCD_ERROR_T ret = (IHEVCD_ERROR_T)IHEVCD_SUCCESS; |
| UNUSED(ps_codec); |
| return ret; |
| } |
| |
| WORD32 ihevcd_extend_sign_bit(WORD32 value, WORD32 num_bits) |
| { |
| WORD32 ret_value = value; |
| if(value >> (num_bits - 1)) |
| { |
| ret_value |= (0xFFFFFFFF << num_bits); |
| } |
| return ret_value; |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Calculate POC of the current slice |
| * |
| * @par Description: |
| * Calculates the current POC using the previous POC lsb and previous POC msb |
| * |
| * @param[in] ps_codec |
| * Pointer to codec context |
| * |
| * @param[in] i1_pic_order_cnt_lsb |
| * Current POC lsb |
| * |
| * @returns Current absolute POC |
| * |
| * @remarks |
| * |
| * |
| ******************************************************************************* |
| */ |
| |
| WORD32 ihevcd_calc_poc(codec_t *ps_codec, nal_header_t *ps_nal, WORD8 i1_log2_max_poc_lsb, WORD32 i2_poc_lsb) |
| { |
| WORD32 i4_abs_poc, i4_poc_msb; |
| WORD32 max_poc_lsb; |
| WORD8 i1_nal_unit_type = ps_nal->i1_nal_unit_type; |
| max_poc_lsb = (1 << i1_log2_max_poc_lsb); |
| |
| if((!ps_codec->i4_first_pic_done) && (!ps_codec->i4_pic_present)) |
| ps_codec->i4_prev_poc_msb = -2 * max_poc_lsb; |
| |
| if(NAL_IDR_N_LP == i1_nal_unit_type |
| || NAL_IDR_W_LP == i1_nal_unit_type |
| || NAL_BLA_N_LP == i1_nal_unit_type |
| || NAL_BLA_W_DLP == i1_nal_unit_type |
| || NAL_BLA_W_LP == i1_nal_unit_type |
| || (NAL_CRA == i1_nal_unit_type && !ps_codec->i4_first_pic_done)) |
| { |
| i4_poc_msb = ps_codec->i4_prev_poc_msb + 2 * max_poc_lsb; |
| ps_codec->i4_prev_poc_lsb = 0; |
| ps_codec->i4_max_prev_poc_lsb = 0; |
| // ps_codec->i4_prev_poc_msb = 0; |
| } |
| else |
| { |
| |
| if((i2_poc_lsb < ps_codec->i4_prev_poc_lsb) |
| && ((ps_codec->i4_prev_poc_lsb - i2_poc_lsb) >= max_poc_lsb / 2)) |
| { |
| i4_poc_msb = ps_codec->i4_prev_poc_msb + max_poc_lsb; |
| } |
| else if((i2_poc_lsb > ps_codec->i4_prev_poc_lsb) |
| && ((i2_poc_lsb - ps_codec->i4_prev_poc_lsb) > max_poc_lsb / 2)) |
| { |
| i4_poc_msb = ps_codec->i4_prev_poc_msb - max_poc_lsb; |
| } |
| else |
| { |
| i4_poc_msb = ps_codec->i4_prev_poc_msb; |
| } |
| |
| |
| } |
| |
| i4_abs_poc = i4_poc_msb + i2_poc_lsb; |
| ps_codec->i4_max_prev_poc_lsb = MAX(ps_codec->i4_max_prev_poc_lsb, i2_poc_lsb); |
| |
| { |
| WORD32 is_reference_nal = ((i1_nal_unit_type <= NAL_RSV_VCL_R15) && (i1_nal_unit_type % 2 != 0)) || ((i1_nal_unit_type >= NAL_BLA_W_LP) && (i1_nal_unit_type <= NAL_RSV_RAP_VCL23)); |
| WORD32 update_prev_poc = ((is_reference_nal) && ((i1_nal_unit_type < NAL_RADL_N) || (i1_nal_unit_type > NAL_RASL_R))); |
| |
| if((0 == ps_nal->i1_nuh_temporal_id) && |
| (update_prev_poc)) |
| { |
| ps_codec->i4_prev_poc_lsb = i2_poc_lsb; |
| ps_codec->i4_prev_poc_msb = i4_poc_msb; |
| } |
| } |
| |
| return i4_abs_poc; |
| } |
| |
| |
| void ihevcd_copy_slice_hdr(codec_t *ps_codec, WORD32 slice_idx, WORD32 slice_idx_ref) |
| { |
| slice_header_t *ps_slice_hdr, *ps_slice_hdr_ref; |
| WORD32 *pu4_entry_offset_backup; |
| |
| ps_slice_hdr = ps_codec->s_parse.ps_slice_hdr_base + slice_idx; |
| ps_slice_hdr_ref = ps_codec->s_parse.ps_slice_hdr_base + slice_idx_ref; |
| |
| pu4_entry_offset_backup = ps_slice_hdr->pu4_entry_point_offset; |
| memcpy(ps_slice_hdr, ps_slice_hdr_ref, sizeof(slice_header_t)); |
| ps_slice_hdr->pu4_entry_point_offset = pu4_entry_offset_backup; |
| } |
| |
| |
| |