| /****************************************************************************** |
| * |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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. |
| * |
| ***************************************************************************** |
| * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| */ |
| #include "ih264_typedefs.h" |
| #include "ih264_macros.h" |
| #include "ih264_platform_macros.h" |
| #include "ih264d_bitstrm.h" |
| #include "ih264d_structs.h" |
| #include "ih264d_parse_cavlc.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_defs.h" |
| |
| #include "ih264d_parse_slice.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_utils.h" |
| #include "ih264d_nal.h" |
| #include "ih264d_deblocking.h" |
| |
| #include "ih264d_mem_request.h" |
| #include "ih264d_debug.h" |
| |
| #include "ih264d_error_handler.h" |
| #include "ih264d_mb_utils.h" |
| #include "ih264d_sei.h" |
| #include "ih264d_vui.h" |
| #include "ih264d_tables.h" |
| |
| #define IDCT_BLOCK_WIDTH8X8 8 |
| |
| void ih264d_scaling_list(WORD16 *pi2_scaling_list, |
| WORD32 i4_size_of_scalinglist, |
| UWORD8 *pu1_use_default_scaling_matrix_flag, |
| dec_bit_stream_t *ps_bitstrm) |
| { |
| WORD32 i4_j, i4_delta_scale, i4_lastScale = 8, i4_nextScale = 8; |
| UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; |
| UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
| |
| *pu1_use_default_scaling_matrix_flag = 0; |
| |
| for(i4_j = 0; i4_j < i4_size_of_scalinglist; i4_j++) |
| { |
| if(i4_nextScale != 0) |
| { |
| i4_delta_scale = ih264d_sev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| |
| i4_nextScale = ((i4_lastScale + i4_delta_scale + 256) & 0xff); |
| |
| *pu1_use_default_scaling_matrix_flag = ((i4_j == 0) |
| && (i4_nextScale == 0)); |
| |
| } |
| pi2_scaling_list[i4_j] = |
| (i4_nextScale == 0) ? (i4_lastScale) : (i4_nextScale); |
| i4_lastScale = pi2_scaling_list[i4_j]; |
| } |
| } |
| |
| void ih264d_form_default_scaling_matrix(dec_struct_t *ps_dec) |
| { |
| |
| /*************************************************************************/ |
| /* perform the inverse scanning for the frame and field scaling matrices */ |
| /*************************************************************************/ |
| { |
| UWORD8 *pu1_inv_scan; |
| WORD32 i4_i, i4_j; |
| |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; |
| |
| /* for all 4x4 matrices */ |
| for(i4_i = 0; i4_i < 6; i4_i++) |
| { |
| for(i4_j = 0; i4_j < 16; i4_j++) |
| { |
| ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan[i4_j]] = |
| 16; |
| |
| } |
| } |
| |
| /* for all 8x8 matrices */ |
| for(i4_i = 0; i4_i < 2; i4_i++) |
| { |
| for(i4_j = 0; i4_j < 64; i4_j++) |
| { |
| ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] = |
| 16; |
| |
| } |
| } |
| } |
| } |
| |
| void ih264d_form_scaling_matrix_picture(dec_seq_params_t *ps_seq, |
| dec_pic_params_t *ps_pic, |
| dec_struct_t *ps_dec) |
| { |
| /* default scaling matrices */ |
| WORD32 i4_i; |
| |
| /* check the SPS first */ |
| if(ps_seq->i4_seq_scaling_matrix_present_flag) |
| { |
| for(i4_i = 0; i4_i < 8; i4_i++) |
| { |
| if(i4_i < 6) |
| { |
| /* fall-back rule A */ |
| if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
| { |
| if((i4_i == 0) || (i4_i == 3)) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i |
| - 1]; |
| } |
| } |
| else |
| { |
| if(ps_seq->u1_use_default_scaling_matrix_flag[i4_i]) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_seq->i2_scalinglist4x4[i4_i]; |
| } |
| } |
| |
| } |
| else |
| { |
| /* fall-back rule A */ |
| if((!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
| || (ps_seq->u1_use_default_scaling_matrix_flag[i4_i])) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8); |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_seq->i2_scalinglist8x8[i4_i - 6]; |
| } |
| } |
| } |
| } |
| |
| /* checking for the PPS */ |
| |
| if(ps_pic->i4_pic_scaling_matrix_present_flag) |
| { |
| for(i4_i = 0; i4_i < 8; i4_i++) |
| { |
| if(i4_i < 6) |
| { |
| /* fall back rule B */ |
| if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i]) |
| { |
| if((i4_i == 0) || (i4_i == 3)) |
| { |
| if(!ps_seq->i4_seq_scaling_matrix_present_flag) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
| } |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i |
| - 1]; |
| } |
| } |
| else |
| { |
| if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i]) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4); |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_pic->i2_pic_scalinglist4x4[i4_i]; |
| } |
| } |
| } |
| else |
| { |
| if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i]) |
| { |
| if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i]) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8); |
| } |
| } |
| else |
| { |
| if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i]) |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| (i4_i == 6) ? (WORD16 *)(gai2_ih264d_default_intra8x8) : (WORD16 *)(gai2_ih264d_default_inter8x8); |
| } |
| else |
| { |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i] = |
| ps_pic->i2_pic_scalinglist8x8[i4_i - 6]; |
| } |
| } |
| } |
| } |
| } |
| |
| /*************************************************************************/ |
| /* perform the inverse scanning for the frame and field scaling matrices */ |
| /*************************************************************************/ |
| { |
| UWORD8 *pu1_inv_scan_4x4; |
| WORD32 i4_i, i4_j; |
| |
| pu1_inv_scan_4x4 = (UWORD8 *)gau1_ih264d_inv_scan; |
| |
| /* for all 4x4 matrices */ |
| for(i4_i = 0; i4_i < 6; i4_i++) |
| { |
| for(i4_j = 0; i4_j < 16; i4_j++) |
| { |
| ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan_4x4[i4_j]] = |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i][i4_j]; |
| |
| } |
| } |
| |
| /* for all 8x8 matrices */ |
| for(i4_i = 0; i4_i < 2; i4_i++) |
| { |
| for(i4_j = 0; i4_j < 64; i4_j++) |
| { |
| ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] = |
| ps_dec->s_high_profile.pi2_scale_mat[i4_i + 6][i4_j]; |
| |
| } |
| } |
| } |
| } |
| |
