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274 lines
9.6 KiB
274 lines
9.6 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at: |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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***************************************************************************** |
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
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*/ |
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#include "ih264_typedefs.h" |
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#include "ih264_macros.h" |
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#include "ih264_platform_macros.h" |
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#include "ih264d_bitstrm.h" |
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#include "ih264d_structs.h" |
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#include "ih264d_parse_cavlc.h" |
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#include "ih264d_defs.h" |
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#include "ih264d_defs.h" |
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#include "ih264d_defs.h" |
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#include "ih264d_parse_slice.h" |
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#include "ih264d_tables.h" |
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#include "ih264d_utils.h" |
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#include "ih264d_nal.h" |
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#include "ih264d_deblocking.h" |
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#include "ih264d_mem_request.h" |
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#include "ih264d_debug.h" |
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#include "ih264d_error_handler.h" |
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#include "ih264d_mb_utils.h" |
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#include "ih264d_sei.h" |
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#include "ih264d_vui.h" |
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#include "ih264d_tables.h" |
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#define IDCT_BLOCK_WIDTH8X8 8 |
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void ih264d_scaling_list(WORD16 *pi2_scaling_list, |
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WORD32 i4_size_of_scalinglist, |
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UWORD8 *pu1_use_default_scaling_matrix_flag, |
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dec_bit_stream_t *ps_bitstrm) |
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{ |
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WORD32 i4_j, i4_delta_scale, i4_lastScale = 8, i4_nextScale = 8; |
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UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; |
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UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
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*pu1_use_default_scaling_matrix_flag = 0; |
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for(i4_j = 0; i4_j < i4_size_of_scalinglist; i4_j++) |
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{ |
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if(i4_nextScale != 0) |
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{ |
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i4_delta_scale = ih264d_sev(pu4_bitstrm_ofst, |
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pu4_bitstrm_buf); |
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i4_nextScale = ((i4_lastScale + i4_delta_scale + 256) & 0xff); |
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*pu1_use_default_scaling_matrix_flag = ((i4_j == 0) |
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&& (i4_nextScale == 0)); |
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} |
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pi2_scaling_list[i4_j] = |
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(i4_nextScale == 0) ? (i4_lastScale) : (i4_nextScale); |
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i4_lastScale = pi2_scaling_list[i4_j]; |
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} |
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} |
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void ih264d_form_default_scaling_matrix(dec_struct_t *ps_dec) |
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{ |
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/*************************************************************************/ |
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/* perform the inverse scanning for the frame and field scaling matrices */ |
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/*************************************************************************/ |
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{ |
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UWORD8 *pu1_inv_scan; |
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WORD32 i4_i, i4_j; |
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pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; |
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/* for all 4x4 matrices */ |
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for(i4_i = 0; i4_i < 6; i4_i++) |
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{ |
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for(i4_j = 0; i4_j < 16; i4_j++) |
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{ |
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ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan[i4_j]] = |
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16; |
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} |
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} |
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/* for all 8x8 matrices */ |
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for(i4_i = 0; i4_i < 2; i4_i++) |
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{ |
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for(i4_j = 0; i4_j < 64; i4_j++) |
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{ |
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ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] = |
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16; |
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} |
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} |
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} |
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} |
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void ih264d_form_scaling_matrix_picture(dec_seq_params_t *ps_seq, |
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dec_pic_params_t *ps_pic, |
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dec_struct_t *ps_dec) |
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{ |
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/* default scaling matrices */ |
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WORD32 i4_i; |
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/* check the SPS first */ |
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if(ps_seq->i4_seq_scaling_matrix_present_flag) |
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{ |
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for(i4_i = 0; i4_i < 8; i4_i++) |
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{ |
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if(i4_i < 6) |
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{ |
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/* fall-back rule A */ |
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if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
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{ |
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if((i4_i == 0) || (i4_i == 3)) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i |
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- 1]; |
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} |
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} |
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else |
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{ |
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if(ps_seq->u1_use_default_scaling_matrix_flag[i4_i]) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_seq->i2_scalinglist4x4[i4_i]; |
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} |
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} |
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} |
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else |
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{ |
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/* fall-back rule A */ |
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if((!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
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|| (ps_seq->u1_use_default_scaling_matrix_flag[i4_i])) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8); |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_seq->i2_scalinglist8x8[i4_i - 6]; |
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} |
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} |
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} |
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} |
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/* checking for the PPS */ |
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if(ps_pic->i4_pic_scaling_matrix_present_flag) |
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{ |
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for(i4_i = 0; i4_i < 8; i4_i++) |
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{ |
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if(i4_i < 6) |
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{ |
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/* fall back rule B */ |
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if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i]) |
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{ |
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if((i4_i == 0) || (i4_i == 3)) |
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{ |
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if(!ps_seq->i4_seq_scaling_matrix_present_flag) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
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} |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i |
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- 1]; |
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} |
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} |
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else |
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{ |
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if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i]) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_pic->i2_pic_scalinglist4x4[i4_i]; |
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} |
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} |
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} |
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else |
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{ |
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if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i]) |
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{ |
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if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8); |
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} |
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} |
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else |
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{ |
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if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i]) |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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(i4_i == 6) ? (WORD16 *)(gai2_ih264d_default_intra8x8) : (WORD16 *)(gai2_ih264d_default_inter8x8); |
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} |
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else |
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{ |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
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ps_pic->i2_pic_scalinglist8x8[i4_i - 6]; |
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} |
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} |
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} |
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} |
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} |
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/*************************************************************************/ |
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/* perform the inverse scanning for the frame and field scaling matrices */ |
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/*************************************************************************/ |
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{ |
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UWORD8 *pu1_inv_scan_4x4; |
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WORD32 i4_i, i4_j; |
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pu1_inv_scan_4x4 = (UWORD8 *)gau1_ih264d_inv_scan; |
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/* for all 4x4 matrices */ |
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for(i4_i = 0; i4_i < 6; i4_i++) |
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{ |
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for(i4_j = 0; i4_j < 16; i4_j++) |
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{ |
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ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan_4x4[i4_j]] = |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i][i4_j]; |
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} |
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} |
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/* for all 8x8 matrices */ |
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for(i4_i = 0; i4_i < 2; i4_i++) |
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{ |
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for(i4_j = 0; i4_j < 64; i4_j++) |
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{ |
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ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] = |
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ps_dec->s_high_profile.pi2_scale_mat[i4_i + 6][i4_j]; |
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} |
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} |
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} |
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} |
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