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1498 lines
58 KiB
C
1498 lines
58 KiB
C
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/******************************************************************************
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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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/*!
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**************************************************************************
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* \file ih264d_parse_islice.c
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*
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* \brief
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* Contains routines that decode a I slice type
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*
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* Detailed_description
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*
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* \date
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* 07/07/2003
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*
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* \author NS
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**************************************************************************
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*/
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#include <string.h>
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#include "ih264_defs.h"
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#include "ih264d_error_handler.h"
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#include "ih264d_debug.h"
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#include "ih264d_bitstrm.h"
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#include "ih264d_defs.h"
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#include "ih264d_debug.h"
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#include "ih264d_tables.h"
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#include "ih264d_structs.h"
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#include "ih264d_defs.h"
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#include "ih264d_parse_cavlc.h"
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#include "ih264d_mb_utils.h"
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#include "ih264d_deblocking.h"
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#include "ih264d_cabac.h"
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#include "ih264d_parse_cabac.h"
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#include "ih264d_parse_mb_header.h"
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#include "ih264d_parse_slice.h"
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#include "ih264d_process_pslice.h"
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#include "ih264d_process_intra_mb.h"
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#include "ih264d_parse_islice.h"
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#include "ih264d_error_handler.h"
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#include "ih264d_mvpred.h"
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#include "ih264d_defs.h"
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#include "ih264d_thread_parse_decode.h"
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#include "ithread.h"
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#include "ih264d_parse_mb_header.h"
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#include "assert.h"
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#include "ih264d_utils.h"
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#include "ih264d_format_conv.h"
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void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec);
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void ih264d_itrans_recon_luma_dc(dec_struct_t *ps_dec,
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WORD16* pi2_src,
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WORD16* pi2_coeff_block,
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const UWORD16 *pu2_weigh_mat);
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/*!
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**************************************************************************
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* \if Function name : ParseIMb \endif
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*
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* \brief
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* This function parses CAVLC syntax of a I MB. If 16x16 Luma DC transform
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* is also done here. Transformed Luma DC values are copied in their
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* 0th pixel location of corrosponding CoeffBlock.
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*
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* \return
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* 0 on Success and Error code otherwise
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**************************************************************************
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*/
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WORD32 ih264d_parse_imb_cavlc(dec_struct_t * ps_dec,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD8 u1_mb_num,
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UWORD8 u1_mb_type)
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{
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WORD32 i4_delta_qp;
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UWORD32 u4_temp;
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UWORD32 ui_is_top_mb_available;
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UWORD32 ui_is_left_mb_available;
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UWORD32 u4_cbp;
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UWORD32 u4_offset;
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UWORD32 *pu4_bitstrm_buf;
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WORD32 ret;
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dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm;
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UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
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UNUSED(u1_mb_num);
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ps_cur_mb_info->u1_tran_form8x8 = 0;
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ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0;
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ps_cur_mb_info->u1_yuv_dc_block_flag = 0;
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u4_temp = ps_dec->u1_mb_ngbr_availablity;
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ui_is_top_mb_available = BOOLEAN(u4_temp & TOP_MB_AVAILABLE_MASK);
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ui_is_left_mb_available = BOOLEAN(u4_temp & LEFT_MB_AVAILABLE_MASK);
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pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
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if(u1_mb_type == I_4x4_MB)
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{
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ps_cur_mb_info->ps_curmb->u1_mb_type = I_4x4_MB;
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u4_offset = 0;
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/*--------------------------------------------------------------------*/
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/* Read transform_size_8x8_flag if present */
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/*--------------------------------------------------------------------*/
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if(ps_dec->s_high_profile.u1_transform8x8_present)
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{
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ps_cur_mb_info->u1_tran_form8x8 = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8);
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ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8;
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}
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/*--------------------------------------------------------------------*/
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/* Read the IntraPrediction modes for LUMA */
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/*--------------------------------------------------------------------*/
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if (!ps_cur_mb_info->u1_tran_form8x8)
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{
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UWORD8 *pu1_temp;
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ih264d_read_intra_pred_modes(ps_dec,
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((UWORD8 *)ps_dec->pv_parse_tu_coeff_data),
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((UWORD8 *)ps_dec->pv_parse_tu_coeff_data+16),
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ps_cur_mb_info->u1_tran_form8x8);
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pu1_temp = (UWORD8 *)ps_dec->pv_parse_tu_coeff_data;
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pu1_temp += 32;
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ps_dec->pv_parse_tu_coeff_data = (void *)pu1_temp;
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}
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else
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{
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UWORD8 *pu1_temp;
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ih264d_read_intra_pred_modes(ps_dec,
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((UWORD8 *)ps_dec->pv_parse_tu_coeff_data),
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((UWORD8 *)ps_dec->pv_parse_tu_coeff_data+4),
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ps_cur_mb_info->u1_tran_form8x8);
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pu1_temp = (UWORD8 *)ps_dec->pv_parse_tu_coeff_data;
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pu1_temp += 8;
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ps_dec->pv_parse_tu_coeff_data = (void *)pu1_temp;
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}
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/*--------------------------------------------------------------------*/
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/* Read the IntraPrediction mode for CHROMA */
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/*--------------------------------------------------------------------*/
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//Inlined ih264d_uev
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{
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UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
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UWORD32 u4_word, u4_ldz, u4_temp;
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/***************************************************************/
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/* Find leading zeros in next 32 bits */
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/***************************************************************/
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NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
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u4_ldz = CLZ(u4_word);
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/* Flush the ps_bitstrm */
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u4_bitstream_offset += (u4_ldz + 1);
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/* Read the suffix from the ps_bitstrm */
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u4_word = 0;
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if(u4_ldz)
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{
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GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
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u4_ldz);
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}
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*pu4_bitstrm_ofst = u4_bitstream_offset;
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u4_temp = ((1 << u4_ldz) + u4_word - 1);
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if(u4_temp > 3)
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{
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return ERROR_CHROMA_PRED_MODE;
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}
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ps_cur_mb_info->u1_chroma_pred_mode = u4_temp;
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COPYTHECONTEXT("intra_chroma_pred_mode", ps_cur_mb_info->u1_chroma_pred_mode);
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}
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/*--------------------------------------------------------------------*/
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/* Read the Coded block pattern */
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/*--------------------------------------------------------------------*/
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{
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UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
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UWORD32 u4_word, u4_ldz;
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/***************************************************************/
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/* Find leading zeros in next 32 bits */
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/***************************************************************/
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NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
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u4_ldz = CLZ(u4_word);
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/* Flush the ps_bitstrm */
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u4_bitstream_offset += (u4_ldz + 1);
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/* Read the suffix from the ps_bitstrm */
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u4_word = 0;
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if(u4_ldz)
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{
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GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
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u4_ldz);
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}
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*pu4_bitstrm_ofst = u4_bitstream_offset;
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u4_cbp = ((1 << u4_ldz) + u4_word - 1);
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}
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if(u4_cbp > 47)
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{
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return ERROR_CBP;
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}
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u4_cbp = gau1_ih264d_cbp_table[u4_cbp][0];
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COPYTHECONTEXT("coded_block_pattern", u1_cbp);
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ps_cur_mb_info->u1_cbp = u4_cbp;
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/*--------------------------------------------------------------------*/
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/* Read mb_qp_delta */
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/*--------------------------------------------------------------------*/
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if(ps_cur_mb_info->u1_cbp)
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{
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UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
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UWORD32 u4_word, u4_ldz, u4_abs_val;
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/***************************************************************/
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/* Find leading zeros in next 32 bits */
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/***************************************************************/
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NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
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u4_ldz = CLZ(u4_word);
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/* Flush the ps_bitstrm */
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u4_bitstream_offset += (u4_ldz + 1);
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/* Read the suffix from the ps_bitstrm */
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u4_word = 0;
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if(u4_ldz)
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{
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GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
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u4_ldz);
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}
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*pu4_bitstrm_ofst = u4_bitstream_offset;
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u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1;
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if(u4_word & 0x1)
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{
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i4_delta_qp = (-(WORD32)u4_abs_val);
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}
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else
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{
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i4_delta_qp = (u4_abs_val);
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}
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if((i4_delta_qp < -26) || (i4_delta_qp > 25))
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{
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return ERROR_INV_RANGE_QP_T;
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}
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COPYTHECONTEXT("mb_qp_delta", i1_delta_qp);
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if(i4_delta_qp != 0)
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{
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ret = ih264d_update_qp(ps_dec, (WORD8)i4_delta_qp);
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if(ret != OK)
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return ret;
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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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u4_offset = 1;
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ps_cur_mb_info->ps_curmb->u1_mb_type = I_16x16_MB;
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/*-------------------------------------------------------------------*/
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/* Read the IntraPrediction mode for CHROMA */
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/*-------------------------------------------------------------------*/
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{
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UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
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UWORD32 u4_word, u4_ldz;
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/***************************************************************/
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/* Find leading zeros in next 32 bits */
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/***************************************************************/
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NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
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u4_ldz = CLZ(u4_word);
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/* Flush the ps_bitstrm */
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u4_bitstream_offset += (u4_ldz + 1);
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/* Read the suffix from the ps_bitstrm */
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u4_word = 0;
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if(u4_ldz)
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{
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GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
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u4_ldz);
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}
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*pu4_bitstrm_ofst = u4_bitstream_offset;
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u4_temp = ((1 << u4_ldz) + u4_word - 1);
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//Inlined ih264d_uev
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if(u4_temp > 3)
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{
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return ERROR_CHROMA_PRED_MODE;
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}
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ps_cur_mb_info->u1_chroma_pred_mode = u4_temp;
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COPYTHECONTEXT("intra_chroma_pred_mode", ps_cur_mb_info->u1_chroma_pred_mode);
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}
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/*-------------------------------------------------------------------*/
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/* Read the Coded block pattern */
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/*-------------------------------------------------------------------*/
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u4_cbp = gau1_ih264d_cbp_tab[(u1_mb_type - 1) >> 2];
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ps_cur_mb_info->u1_cbp = u4_cbp;
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/*-------------------------------------------------------------------*/
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/* Read mb_qp_delta */
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/*-------------------------------------------------------------------*/
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{
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UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
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UWORD32 u4_word, u4_ldz, u4_abs_val;
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/***************************************************************/
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/* Find leading zeros in next 32 bits */
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/***************************************************************/
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NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
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u4_ldz = CLZ(u4_word);
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/* Flush the ps_bitstrm */
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u4_bitstream_offset += (u4_ldz + 1);
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/* Read the suffix from the ps_bitstrm */
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u4_word = 0;
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if(u4_ldz)
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GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
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u4_ldz);
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*pu4_bitstrm_ofst = u4_bitstream_offset;
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u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1;
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if(u4_word & 0x1)
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i4_delta_qp = (-(WORD32)u4_abs_val);
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else
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i4_delta_qp = (u4_abs_val);
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if((i4_delta_qp < -26) || (i4_delta_qp > 25))
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return ERROR_INV_RANGE_QP_T;
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}
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//inlinined ih264d_sev
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COPYTHECONTEXT("Delta quant", i1_delta_qp);
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if(i4_delta_qp != 0)
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{
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ret = ih264d_update_qp(ps_dec, (WORD8)i4_delta_qp);
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if(ret != OK)
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return ret;
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}
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||
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{
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||
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WORD16 i_scaleFactor;
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UWORD32 ui_N = 0;
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WORD16 *pi2_scale_matrix_ptr;
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||
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/*******************************************************************/
|
||
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/* for luma DC coefficients the scaling is done during the parsing */
|
||
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/* to preserve the precision */
|
||
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/*******************************************************************/
|
||
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if(ps_dec->s_high_profile.u1_scaling_present)
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{
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pi2_scale_matrix_ptr =
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ps_dec->s_high_profile.i2_scalinglist4x4[0];
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}
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else
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{
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i_scaleFactor = 16;
|
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pi2_scale_matrix_ptr = &i_scaleFactor;
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}
|
||
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|
||
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/*---------------------------------------------------------------*/
|
||
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/* Decode DC coefficients */
|
||
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/*---------------------------------------------------------------*/
|
||
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/*---------------------------------------------------------------*/
|
||
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/* Calculation of N */
|
||
|
/*---------------------------------------------------------------*/
|
||
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if(ui_is_left_mb_available)
|
||
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{
|
||
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|
||
|
if(ui_is_top_mb_available)
|
||
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{
|
||
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ui_N = ((ps_cur_mb_info->ps_top_mb->pu1_nnz_y[0]
|
||
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+ ps_dec->pu1_left_nnz_y[0] + 1) >> 1);
|
||
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}
|
||
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else
|
||
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{
|
||
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ui_N = ps_dec->pu1_left_nnz_y[0];
|
||
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}
|
||
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}
|
||
|
else if(ui_is_top_mb_available)
|
||
|
{
|
||
|
ui_N = ps_cur_mb_info->ps_top_mb->pu1_nnz_y[0];
|
||
|
}
|
||
|
|
||
|
{
|
||
|
WORD16 pi2_dc_coef[16];
|
||
|
WORD32 pi4_tmp[16];
|
||
|
tu_sblk4x4_coeff_data_t *ps_tu_4x4 =
|
||
|
(tu_sblk4x4_coeff_data_t *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
WORD16 *pi2_coeff_block =
|
||
|
(WORD16 *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
UWORD32 u4_num_coeff;
|
||
|
ps_tu_4x4->u2_sig_coeff_map = 0;
|
||
|
|
||
|
ret = ps_dec->pf_cavlc_parse4x4coeff[(ui_N > 7)](pi2_dc_coef, 0, ui_N,
|
||
|
ps_dec, &u4_num_coeff);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
|
||
|
if(EXCEED_OFFSET(ps_bitstrm))
|
||
|
return ERROR_EOB_TERMINATE_T;
|
||
|
if(ps_tu_4x4->u2_sig_coeff_map)
|
||
|
{
|
||
|
memset(pi2_dc_coef,0,sizeof(pi2_dc_coef));
|
||
|
ih264d_unpack_coeff4x4_dc_4x4blk(ps_tu_4x4,
|
||
|
pi2_dc_coef,
|
||
|
ps_dec->pu1_inv_scan);
|
||
|
|
||
|
PROFILE_DISABLE_IQ_IT_RECON()
|
||
|
ps_dec->pf_ihadamard_scaling_4x4(pi2_dc_coef,
|
||
|
pi2_coeff_block,
|
||
|
ps_dec->pu2_quant_scale_y,
|
||
|
(UWORD16 *)pi2_scale_matrix_ptr,
|
||
|
ps_dec->u1_qp_y_div6,
|
||
|
pi4_tmp);
|
||
|
pi2_coeff_block += 16;
|
||
|
ps_dec->pv_parse_tu_coeff_data = (void *)pi2_coeff_block;
|
||
|
SET_BIT(ps_cur_mb_info->u1_yuv_dc_block_flag,0);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
if(u4_cbp)
|
||
|
{
|
||
|
|
||
|
ret = ih264d_parse_residual4x4_cavlc(ps_dec, ps_cur_mb_info,
|
||
|
(UWORD8)u4_offset);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
if(EXCEED_OFFSET(ps_bitstrm))
|
||
|
return ERROR_EOB_TERMINATE_T;
|
||
|
|
||
|
/* Store Left Mb NNZ and TOP chroma NNZ */
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ps_cur_mb_info->u1_qp_div6 = ps_dec->u1_qp_y_div6;
|
||
|
ps_cur_mb_info->u1_qpc_div6 = ps_dec->u1_qp_u_div6;
|
||
|
ps_cur_mb_info->u1_qpcr_div6 = ps_dec->u1_qp_v_div6;
|
||
|
ps_cur_mb_info->u1_qp_rem6 = ps_dec->u1_qp_y_rem6;
|
||
|
ps_cur_mb_info->u1_qpc_rem6 = ps_dec->u1_qp_u_rem6;
|
||
|
ps_cur_mb_info->u1_qpcr_rem6 = ps_dec->u1_qp_v_rem6;
|
||
|
ih264d_update_nnz_for_skipmb(ps_dec, ps_cur_mb_info, CAVLC);
|
||
|
}
|
||
|
|
||
|
return OK;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
**************************************************************************
|
||
|
* \if Function name : ParseIMbCab \endif
|
||
|
*
|
||
|
* \brief
|
||
|
* This function parses CABAC syntax of a I MB. If 16x16 Luma DC transform
|
||
|
* is also done here. Transformed Luma DC values are copied in their
|
||
|
* 0th pixel location of corrosponding CoeffBlock.
|
||
|
*
|
||
|
* \return
|
||
|
* 0 on Success and Error code otherwise
|
||
|
**************************************************************************
|
||
|
*/
|
||
|
WORD32 ih264d_parse_imb_cabac(dec_struct_t * ps_dec,
|
||
|
dec_mb_info_t * ps_cur_mb_info,
|
||
|
UWORD8 u1_mb_type)
|
||
|
{
|
||
|
WORD8 i1_delta_qp;
|
||
|
UWORD8 u1_cbp;
|
||
|
UWORD8 u1_offset;
|
||
|
/* Variables for handling Cabac contexts */
|
||
|
ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info;
|
||
|
ctxt_inc_mb_info_t *ps_left_ctxt = ps_dec->p_left_ctxt_mb_info;
|
||
|
dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm;
|
||
|
bin_ctxt_model_t *p_bin_ctxt;
|
||
|
|
||
|
UWORD8 u1_intra_chrom_pred_mode;
|
||
|
UWORD8 u1_dc_block_flag = 0;
|
||
|
WORD32 ret;
|
||
|
|
||
|
ps_cur_mb_info->u1_yuv_dc_block_flag = 0;
|
||
|
|
||
|
if(ps_left_ctxt == ps_dec->ps_def_ctxt_mb_info)
|
||
|
{
|
||
|
ps_dec->pu1_left_yuv_dc_csbp[0] = 0xf;
|
||
|
}
|
||
|
|
||
|
if(ps_dec->ps_cur_slice->u1_slice_type != I_SLICE)
|
||
|
{
|
||
|
WORD32 *pi4_buf;
|
||
|
WORD8 *pi1_buf;
|
||
|
MEMSET_16BYTES(&ps_dec->pu1_left_mv_ctxt_inc[0][0], 0);
|
||
|
*((UWORD32 *)ps_dec->pi1_left_ref_idx_ctxt_inc) = 0;
|
||
|
MEMSET_16BYTES(p_curr_ctxt->u1_mv, 0);
|
||
|
memset(p_curr_ctxt->i1_ref_idx, 0, 4);
|
||
|
}
|
||
|
|
||
|
if(u1_mb_type == I_4x4_MB)
|
||
|
{
|
||
|
ps_cur_mb_info->ps_curmb->u1_mb_type = I_4x4_MB;
|
||
|
p_curr_ctxt->u1_mb_type = CAB_I4x4;
|
||
|
u1_offset = 0;
|
||
|
|
||
|
ps_cur_mb_info->u1_tran_form8x8 = 0;
|
||
|
ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read transform_size_8x8_flag if present */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
if(ps_dec->s_high_profile.u1_transform8x8_present)
|
||
|
{
|
||
|
ps_cur_mb_info->u1_tran_form8x8 = ih264d_parse_transform8x8flag_cabac(
|
||
|
ps_dec, ps_cur_mb_info);
|
||
|
COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8);
|
||
|
p_curr_ctxt->u1_transform8x8_ctxt = ps_cur_mb_info->u1_tran_form8x8;
|
||
|
ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
p_curr_ctxt->u1_transform8x8_ctxt = 0;
|
||
|
}
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read the IntraPrediction modes for LUMA */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
if (!ps_cur_mb_info->u1_tran_form8x8)
|
||
|
{
|
||
|
UWORD8 *pu1_temp;
|
||
|
ih264d_read_intra_pred_modes_cabac(
|
||
|
ps_dec,
|
||
|
((UWORD8 *)ps_dec->pv_parse_tu_coeff_data),
|
||
|
((UWORD8 *)ps_dec->pv_parse_tu_coeff_data+16),
|
||
|
ps_cur_mb_info->u1_tran_form8x8);
|
||
|
pu1_temp = (UWORD8 *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
pu1_temp += 32;
|
||
|
ps_dec->pv_parse_tu_coeff_data = (void *)pu1_temp;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
UWORD8 *pu1_temp;
|
||
|
ih264d_read_intra_pred_modes_cabac(
|
||
|
ps_dec,
|
||
|
((UWORD8 *)ps_dec->pv_parse_tu_coeff_data),
|
||
|
((UWORD8 *)ps_dec->pv_parse_tu_coeff_data+4),
|
||
|
ps_cur_mb_info->u1_tran_form8x8);
|
||
|
pu1_temp = (UWORD8 *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
pu1_temp += 8;
|
||
|
ps_dec->pv_parse_tu_coeff_data = (void *)pu1_temp;
|
||
|
}
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read the IntraPrediction mode for CHROMA */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
u1_intra_chrom_pred_mode = ih264d_parse_chroma_pred_mode_cabac(ps_dec);
|
||
|
COPYTHECONTEXT("intra_chroma_pred_mode", u1_intra_chrom_pred_mode);
|
||
|
p_curr_ctxt->u1_intra_chroma_pred_mode = ps_cur_mb_info->u1_chroma_pred_mode =
|
||
|
u1_intra_chrom_pred_mode;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read the Coded block pattern */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
u1_cbp = ih264d_parse_ctx_cbp_cabac(ps_dec);
|
||
|
COPYTHECONTEXT("coded_block_pattern", u1_cbp);
|
||
|
ps_cur_mb_info->u1_cbp = u1_cbp;
|
||
|
p_curr_ctxt->u1_cbp = u1_cbp;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read mb_qp_delta */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
if(ps_cur_mb_info->u1_cbp)
|
||
|
{
|
||
|
ret = ih264d_parse_mb_qp_delta_cabac(ps_dec, &i1_delta_qp);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
COPYTHECONTEXT("mb_qp_delta", i1_delta_qp);
|
||
|
if(i1_delta_qp != 0)
|
||
|
{
|
||
|
ret = ih264d_update_qp(ps_dec, i1_delta_qp);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
ps_dec->i1_prev_mb_qp_delta = 0;
|
||
|
p_curr_ctxt->u1_yuv_dc_csbp &= 0xFE;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
u1_offset = 1;
|
||
|
ps_cur_mb_info->ps_curmb->u1_mb_type = I_16x16_MB;
|
||
|
p_curr_ctxt->u1_mb_type = CAB_I16x16;
|
||
|
ps_cur_mb_info->u1_tran_form8x8 = 0;
|
||
|
p_curr_ctxt->u1_transform8x8_ctxt = 0;
|
||
|
ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0;
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read the IntraPrediction mode for CHROMA */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
u1_intra_chrom_pred_mode = ih264d_parse_chroma_pred_mode_cabac(ps_dec);
|
||
|
if(u1_intra_chrom_pred_mode > 3)
|
||
|
return ERROR_CHROMA_PRED_MODE;
|
||
|
|
||
|
COPYTHECONTEXT("Chroma intra_chroma_pred_mode pred mode", u1_intra_chrom_pred_mode);
|
||
|
p_curr_ctxt->u1_intra_chroma_pred_mode = ps_cur_mb_info->u1_chroma_pred_mode =
|
||
|
u1_intra_chrom_pred_mode;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read the Coded block pattern */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
u1_cbp = gau1_ih264d_cbp_tab[(u1_mb_type - 1) >> 2];
|
||
|
ps_cur_mb_info->u1_cbp = u1_cbp;
|
||
|
p_curr_ctxt->u1_cbp = u1_cbp;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read mb_qp_delta */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
ret = ih264d_parse_mb_qp_delta_cabac(ps_dec, &i1_delta_qp);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
COPYTHECONTEXT("mb_qp_delta", i1_delta_qp);
|
||
|
if(i1_delta_qp != 0)
|
||
|
{
|
||
|
ret = ih264d_update_qp(ps_dec, i1_delta_qp);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
{
|
||
|
WORD16 i_scaleFactor;
|
||
|
WORD16* pi2_scale_matrix_ptr;
|
||
|
/*******************************************************************/
|
||
|
/* for luma DC coefficients the scaling is done during the parsing */
|
||
|
/* to preserve the precision */
|
||
|
/*******************************************************************/
|
||
|
if(ps_dec->s_high_profile.u1_scaling_present)
|
||
|
{
|
||
|
pi2_scale_matrix_ptr =
|
||
|
ps_dec->s_high_profile.i2_scalinglist4x4[0];
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
i_scaleFactor = 16;
|
||
|
pi2_scale_matrix_ptr = &i_scaleFactor;
|
||
|
}
|
||
|
{
|
||
|
ctxt_inc_mb_info_t *ps_top_ctxt = ps_dec->p_top_ctxt_mb_info;
|
||
|
UWORD8 uc_a, uc_b;
|
||
|
UWORD32 u4_ctx_inc;
|
||
|
|
||
|
INC_SYM_COUNT(&(ps_dec->s_cab_dec_env));
|
||
|
|
||
|
/* if MbAddrN not available then CondTermN = 1 */
|
||
|
uc_b = ((ps_top_ctxt->u1_yuv_dc_csbp) & 0x01);
|
||
|
|
||
|
/* if MbAddrN not available then CondTermN = 1 */
|
||
|
uc_a = ((ps_dec->pu1_left_yuv_dc_csbp[0]) & 0x01);
|
||
|
|
||
|
u4_ctx_inc = (uc_a + (uc_b << 1));
|
||
|
|
||
|
{
|
||
|
WORD16 pi2_dc_coef[16];
|
||
|
tu_sblk4x4_coeff_data_t *ps_tu_4x4 =
|
||
|
(tu_sblk4x4_coeff_data_t *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
WORD16 *pi2_coeff_block =
|
||
|
(WORD16 *)ps_dec->pv_parse_tu_coeff_data;
|
||
|
|
||
|
p_bin_ctxt = (ps_dec->p_cbf_t[LUMA_DC_CTXCAT]) + u4_ctx_inc;
|
||
|
|
||
|
u1_dc_block_flag =
|
||
|
ih264d_read_coeff4x4_cabac(ps_bitstrm,
|
||
|
LUMA_DC_CTXCAT,
|
||
|
ps_dec->p_significant_coeff_flag_t[LUMA_DC_CTXCAT],
|
||
|
ps_dec, p_bin_ctxt);
|
||
|
|
||
|
/* Store coded_block_flag */
|
||
|
p_curr_ctxt->u1_yuv_dc_csbp &= 0xFE;
|
||
|
p_curr_ctxt->u1_yuv_dc_csbp |= u1_dc_block_flag;
|
||
|
if(u1_dc_block_flag)
|
||
|
{
|
||
|
WORD32 pi4_tmp[16];
|
||
|
memset(pi2_dc_coef,0,sizeof(pi2_dc_coef));
|
||
|
ih264d_unpack_coeff4x4_dc_4x4blk(ps_tu_4x4,
|
||
|
pi2_dc_coef,
|
||
|
ps_dec->pu1_inv_scan);
|
||
|
|
||
|
PROFILE_DISABLE_IQ_IT_RECON()
|
||
|
ps_dec->pf_ihadamard_scaling_4x4(pi2_dc_coef,
|
||
|
pi2_coeff_block,
|
||
|
ps_dec->pu2_quant_scale_y,
|
||
|
(UWORD16 *)pi2_scale_matrix_ptr,
|
||
|
ps_dec->u1_qp_y_div6,
|
||
|
pi4_tmp);
|
||
|
pi2_coeff_block += 16;
|
||
|
ps_dec->pv_parse_tu_coeff_data = (void *)pi2_coeff_block;
|
||
|
SET_BIT(ps_cur_mb_info->u1_yuv_dc_block_flag,0);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
ps_dec->pu1_left_yuv_dc_csbp[0] &= 0x6;
|
||
|
ps_dec->pu1_left_yuv_dc_csbp[0] |= u1_dc_block_flag;
|
||
|
|
||
|
ih264d_parse_residual4x4_cabac(ps_dec, ps_cur_mb_info, u1_offset);
|
||
|
if(EXCEED_OFFSET(ps_bitstrm))
|
||
|
return ERROR_EOB_TERMINATE_T;
|
||
|
return OK;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* */
|
||
|
/* Function Name : ih264d_parse_islice_data_cavlc */
|
||
|
/* */
|
||
|
/* Description : This function parses cabac syntax of a inter slice on */
|
||
|
/* N MB basis. */
|
||
|
/* */
|
||
|
/* Inputs : ps_dec */
|
||
|
/* sliceparams */
|
||
|
/* firstMbInSlice */
|
||
|
/* */
|
||
|
/* Processing : 1. After parsing syntax for N MBs those N MBs are */
|
||
|
/* decoded till the end of slice. */
|
||
|
/* */
|
||
|
/* Returns : 0 */
|
||
|
/* */
|
||
|
/* Issues : <List any issues or problems with this function> */
|
||
|
/* */
|
||
|
/* Revision History: */
|
||
|
/* */
|
||
|
/* DD MM YYYY Author(s) Changes (Describe the changes made) */
|
||
|
/* 24 06 2005 ARNY Draft */
|
||
|
/* */
|
||
|
/*****************************************************************************/
|
||
|
WORD32 ih264d_parse_islice_data_cavlc(dec_struct_t * ps_dec,
|
||
|
dec_slice_params_t * ps_slice,
|
||
|
UWORD16 u2_first_mb_in_slice)
|
||
|
{
|
||
|
UWORD8 uc_more_data_flag;
|
||
|
UWORD8 u1_num_mbs, u1_mb_idx;
|
||
|
dec_mb_info_t *ps_cur_mb_info;
|
||
|
deblk_mb_t *ps_cur_deblk_mb;
|
||
|
dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm;
|
||
|
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
|
||
|
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
|
||
|
UWORD16 i2_pic_wdin_mbs = ps_dec->u2_frm_wd_in_mbs;
|
||
|
WORD16 i2_cur_mb_addr;
|
||
|
UWORD8 u1_mbaff;
|
||
|
UWORD8 u1_num_mbs_next, u1_end_of_row, u1_tfr_n_mb;
|
||
|
WORD32 ret = OK;
|
||
|
|
||
|
ps_dec->u1_qp = ps_slice->u1_slice_qp;
|
||
|
ih264d_update_qp(ps_dec, 0);
|
||
|
u1_mbaff = ps_slice->u1_mbaff_frame_flag;
|
||
|
|
||
|
/* initializations */
|
||
|
u1_mb_idx = ps_dec->u1_mb_idx;
|
||
|
u1_num_mbs = u1_mb_idx;
|
||
|
|
||
|
uc_more_data_flag = 1;
|
||
|
i2_cur_mb_addr = u2_first_mb_in_slice << u1_mbaff;
|
||
|
|
||
|
do
|
||
|
{
|
||
|
UWORD8 u1_mb_type;
|
||
|
|
||
|
ps_dec->pv_prev_mb_parse_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data;
|
||
|
|
||
|
if(i2_cur_mb_addr > ps_dec->ps_cur_sps->u2_max_mb_addr)
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
ps_cur_mb_info = ps_dec->ps_nmb_info + u1_num_mbs;
|
||
|
ps_dec->u4_num_mbs_cur_nmb = u1_num_mbs;
|
||
|
ps_dec->u4_num_pmbair = (u1_num_mbs >> u1_mbaff);
|
||
|
|
||
|
ps_cur_mb_info->u1_end_of_slice = 0;
|
||
|
|
||
|
/***************************************************************/
|
||
|
/* Get the required information for decoding of MB */
|
||
|
/* mb_x, mb_y , neighbour availablity, */
|
||
|
/***************************************************************/
|
||
|
ps_dec->pf_get_mb_info(ps_dec, i2_cur_mb_addr, ps_cur_mb_info, 0);
|
||
|
|
||
|
/***************************************************************/
|
||
|
/* Set the deblocking parameters for this MB */
|
||
|
/***************************************************************/
|
||
|
ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_num_mbs;
|
||
|
|
||
|
if(ps_dec->u4_app_disable_deblk_frm == 0)
|
||
|
ih264d_set_deblocking_parameters(ps_cur_deblk_mb, ps_slice,
|
||
|
ps_dec->u1_mb_ngbr_availablity,
|
||
|
ps_dec->u1_cur_mb_fld_dec_flag);
|
||
|
|
||
|
ps_cur_deblk_mb->u1_mb_type = ps_cur_deblk_mb->u1_mb_type | D_INTRA_MB;
|
||
|
|
||
|
/**************************************************************/
|
||
|
/* Macroblock Layer Begins, Decode the u1_mb_type */
|
||
|
/**************************************************************/
|
||
|
//Inlined ih264d_uev
|
||
|
{
|
||
|
UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst;
|
||
|
UWORD32 u4_word, u4_ldz, u4_temp;
|
||
|
|
||
|
/***************************************************************/
|
||
|
/* Find leading zeros in next 32 bits */
|
||
|
/***************************************************************/
|
||
|
NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf);
|
||
|
u4_ldz = CLZ(u4_word);
|
||
|
/* Flush the ps_bitstrm */
|
||
|
u4_bitstream_offset += (u4_ldz + 1);
|
||
|
/* Read the suffix from the ps_bitstrm */
|
||
|
u4_word = 0;
|
||
|
if(u4_ldz)
|
||
|
GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf,
|
||
|
u4_ldz);
|
||
|
*pu4_bitstrm_ofst = u4_bitstream_offset;
|
||
|
u4_temp = ((1 << u4_ldz) + u4_word - 1);
|
||
|
if(u4_temp > 25)
|
||
|
return ERROR_MB_TYPE;
|
||
|
u1_mb_type = u4_temp;
|
||
|
|
||
|
}
|
||
|
//Inlined ih264d_uev
|
||
|
ps_cur_mb_info->u1_mb_type = u1_mb_type;
|
||
|
COPYTHECONTEXT("u1_mb_type", u1_mb_type);
|
||
|
|
||
|
/**************************************************************/
|
||
|
/* Parse Macroblock data */
|
||
|
/**************************************************************/
|
||
|
if(25 == u1_mb_type)
|
||
|
{
|
||
|
/* I_PCM_MB */
|
||
|
ps_cur_mb_info->ps_curmb->u1_mb_type = I_PCM_MB;
|
||
|
ret = ih264d_parse_ipcm_mb(ps_dec, ps_cur_mb_info, u1_num_mbs);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
ps_cur_deblk_mb->u1_mb_qp = 0;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ret = ih264d_parse_imb_cavlc(ps_dec, ps_cur_mb_info, u1_num_mbs, u1_mb_type);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
ps_cur_deblk_mb->u1_mb_qp = ps_dec->u1_qp;
|
||
|
}
|
||
|
|
||
|
uc_more_data_flag = MORE_RBSP_DATA(ps_bitstrm);
|
||
|
|
||
|
if(u1_mbaff)
|
||
|
{
|
||
|
ih264d_update_mbaff_left_nnz(ps_dec, ps_cur_mb_info);
|
||
|
if(!uc_more_data_flag && (0 == (i2_cur_mb_addr & 1)))
|
||
|
{
|
||
|
return ERROR_EOB_FLUSHBITS_T;
|
||
|
}
|
||
|
}
|
||
|
/**************************************************************/
|
||
|
/* Get next Macroblock address */
|
||
|
/**************************************************************/
|
||
|
|
||
|
i2_cur_mb_addr++;
|
||
|
|
||
|
|
||
|
/* Store the colocated information */
|
||
|
{
|
||
|
mv_pred_t *ps_mv_nmb_start = ps_dec->ps_mv_cur + (u1_num_mbs << 4);
|
||
|
|
||
|
mv_pred_t s_mvPred =
|
||
|
{
|
||
|
{ 0, 0, 0, 0 },
|
||
|
{ -1, -1 }, 0, 0};
|
||
|
ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0,
|
||
|
(UWORD8)(ps_dec->u1_cur_mb_fld_dec_flag << 1), 4,
|
||
|
4);
|
||
|
}
|
||
|
|
||
|
/*if num _cores is set to 3,compute bs will be done in another thread*/
|
||
|
if(ps_dec->u4_num_cores < 3)
|
||
|
{
|
||
|
if(ps_dec->u4_app_disable_deblk_frm == 0)
|
||
|
ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info,
|
||
|
(UWORD16)(u1_num_mbs >> u1_mbaff));
|
||
|
}
|
||
|
u1_num_mbs++;
|
||
|
|
||
|
/****************************************************************/
|
||
|
/* Check for End Of Row */
|
||
|
/****************************************************************/
|
||
|
u1_num_mbs_next = i2_pic_wdin_mbs - ps_dec->u2_mbx - 1;
|
||
|
u1_end_of_row = (!u1_num_mbs_next) && (!(u1_mbaff && (u1_num_mbs & 0x01)));
|
||
|
u1_tfr_n_mb = (u1_num_mbs == ps_dec->u1_recon_mb_grp) || u1_end_of_row
|
||
|
|| (!uc_more_data_flag);
|
||
|
ps_cur_mb_info->u1_end_of_slice = (!uc_more_data_flag);
|
||
|
|
||
|
/*H264_DEC_DEBUG_PRINT("Pic: %d Mb_X=%d Mb_Y=%d",
|
||
|
ps_slice->i4_poc >> ps_slice->u1_field_pic_flag,
|
||
|
ps_dec->u2_mbx,ps_dec->u2_mby + (1 - ps_cur_mb_info->u1_topmb));
|
||
|
H264_DEC_DEBUG_PRINT("u1_tfr_n_mb || (!uc_more_data_flag): %d", u1_tfr_n_mb || (!uc_more_data_flag));*/
|
||
|
if(u1_tfr_n_mb || (!uc_more_data_flag))
|
||
|
{
|
||
|
|
||
|
if(ps_dec->u1_separate_parse)
|
||
|
{
|
||
|
ih264d_parse_tfr_nmb(ps_dec, u1_mb_idx, u1_num_mbs,
|
||
|
u1_num_mbs_next, u1_tfr_n_mb, u1_end_of_row);
|
||
|
ps_dec->ps_nmb_info += u1_num_mbs;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ih264d_decode_recon_tfr_nmb(ps_dec, u1_mb_idx, u1_num_mbs,
|
||
|
u1_num_mbs_next, u1_tfr_n_mb,
|
||
|
u1_end_of_row);
|
||
|
}
|
||
|
ps_dec->u2_total_mbs_coded += u1_num_mbs;
|
||
|
if(u1_tfr_n_mb)
|
||
|
u1_num_mbs = 0;
|
||
|
u1_mb_idx = u1_num_mbs;
|
||
|
ps_dec->u1_mb_idx = u1_num_mbs;
|
||
|
|
||
|
}
|
||
|
}
|
||
|
while(uc_more_data_flag);
|
||
|
|
||
|
ps_dec->u4_num_mbs_cur_nmb = 0;
|
||
|
ps_dec->ps_cur_slice->u4_mbs_in_slice = i2_cur_mb_addr
|
||
|
|
||
|
- (u2_first_mb_in_slice << u1_mbaff);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* */
|
||
|
/* Function Name : ih264d_parse_islice_data_cabac */
|
||
|
/* */
|
||
|
/* Description : This function parses cabac syntax of a inter slice on */
|
||
|
/* N MB basis. */
|
||
|
/* */
|
||
|
/* Inputs : ps_dec */
|
||
|
/* sliceparams */
|
||
|
/* firstMbInSlice */
|
||
|
/* */
|
||
|
/* Processing : 1. After parsing syntax for N MBs those N MBs are */
|
||
|
/* decoded till the end of slice. */
|
||
|
/* */
|
||
|
/* Returns : 0 */
|
||
|
/* */
|
||
|
/* Issues : <List any issues or problems with this function> */
|
||
|
/* */
|
||
|
/* Revision History: */
|
||
|
/* */
|
||
|
/* DD MM YYYY Author(s) Changes (Describe the changes made) */
|
||
|
/* 24 06 2005 ARNY Draft */
|
||
|
/* */
|
||
|
/*****************************************************************************/
|
||
|
WORD32 ih264d_parse_islice_data_cabac(dec_struct_t * ps_dec,
|
||
|
dec_slice_params_t * ps_slice,
|
||
|
UWORD16 u2_first_mb_in_slice)
|
||
|
{
|
||
|
UWORD8 uc_more_data_flag;
|
||
|
UWORD8 u1_num_mbs, u1_mb_idx;
|
||
|
dec_mb_info_t *ps_cur_mb_info;
|
||
|
deblk_mb_t *ps_cur_deblk_mb;
|
||
|
|
||
|
dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm;
|
||
|
UWORD16 i2_pic_wdin_mbs = ps_dec->u2_frm_wd_in_mbs;
|
||
|
WORD16 i2_cur_mb_addr;
|
||
|
UWORD8 u1_mbaff;
|
||
|
UWORD8 u1_num_mbs_next, u1_end_of_row, u1_tfr_n_mb;
|
||
|
WORD32 ret = OK;
|
||
|
|
||
|
ps_dec->u1_qp = ps_slice->u1_slice_qp;
|
||
|
ih264d_update_qp(ps_dec, 0);
|
||
|
u1_mbaff = ps_slice->u1_mbaff_frame_flag;
|
||
|
|
||
|
if(ps_bitstrm->u4_ofst & 0x07)
|
||
|
{
|
||
|
ps_bitstrm->u4_ofst += 8;
|
||
|
ps_bitstrm->u4_ofst &= 0xFFFFFFF8;
|
||
|
}
|
||
|
ret = ih264d_init_cabac_dec_envirnoment(&(ps_dec->s_cab_dec_env), ps_bitstrm);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
ih264d_init_cabac_contexts(I_SLICE, ps_dec);
|
||
|
|
||
|
ps_dec->i1_prev_mb_qp_delta = 0;
|
||
|
|
||
|
/* initializations */
|
||
|
u1_mb_idx = ps_dec->u1_mb_idx;
|
||
|
u1_num_mbs = u1_mb_idx;
|
||
|
|
||
|
uc_more_data_flag = 1;
|
||
|
i2_cur_mb_addr = u2_first_mb_in_slice << u1_mbaff;
|
||
|
do
|
||
|
{
|
||
|
UWORD16 u2_mbx;
|
||
|
|
||
|
ps_dec->pv_prev_mb_parse_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data;
|
||
|
|
||
|
if(i2_cur_mb_addr > ps_dec->ps_cur_sps->u2_max_mb_addr)
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
{
|
||
|
UWORD8 u1_mb_type;
|
||
|
|
||
|
ps_cur_mb_info = ps_dec->ps_nmb_info + u1_num_mbs;
|
||
|
ps_dec->u4_num_mbs_cur_nmb = u1_num_mbs;
|
||
|
ps_dec->u4_num_pmbair = (u1_num_mbs >> u1_mbaff);
|
||
|
|
||
|
ps_cur_mb_info->u1_end_of_slice = 0;
|
||
|
|
||
|
/***************************************************************/
|
||
|
/* Get the required information for decoding of MB */
|
||
|
/* mb_x, mb_y , neighbour availablity, */
|
||
|
/***************************************************************/
|
||
|
ps_dec->pf_get_mb_info(ps_dec, i2_cur_mb_addr, ps_cur_mb_info, 0);
|
||
|
u2_mbx = ps_dec->u2_mbx;
|
||
|
|
||
|
/*********************************************************************/
|
||
|
/* initialize u1_tran_form8x8 to zero to aviod uninitialized accesses */
|
||
|
/*********************************************************************/
|
||
|
ps_cur_mb_info->u1_tran_form8x8 = 0;
|
||
|
ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0;
|
||
|
|
||
|
/***************************************************************/
|
||
|
/* Set the deblocking parameters for this MB */
|
||
|
/***************************************************************/
|
||
|
ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_num_mbs;
|
||
|
if(ps_dec->u4_app_disable_deblk_frm == 0)
|
||
|
ih264d_set_deblocking_parameters(
|
||
|
ps_cur_deblk_mb, ps_slice,
|
||
|
ps_dec->u1_mb_ngbr_availablity,
|
||
|
ps_dec->u1_cur_mb_fld_dec_flag);
|
||
|
|
||
|
ps_cur_deblk_mb->u1_mb_type = ps_cur_deblk_mb->u1_mb_type
|
||
|
| D_INTRA_MB;
|
||
|
|
||
|
/* Macroblock Layer Begins */
|
||
|
/* Decode the u1_mb_type */
|
||
|
u1_mb_type = ih264d_parse_mb_type_intra_cabac(0, ps_dec);
|
||
|
if(u1_mb_type > 25)
|
||
|
return ERROR_MB_TYPE;
|
||
|
ps_cur_mb_info->u1_mb_type = u1_mb_type;
|
||
|
COPYTHECONTEXT("u1_mb_type", u1_mb_type);
|
||
|
|
||
|
/* Parse Macroblock Data */
|
||
|
if(25 == u1_mb_type)
|
||
|
{
|
||
|
/* I_PCM_MB */
|
||
|
ps_cur_mb_info->ps_curmb->u1_mb_type = I_PCM_MB;
|
||
|
ret = ih264d_parse_ipcm_mb(ps_dec, ps_cur_mb_info, u1_num_mbs);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
ps_cur_deblk_mb->u1_mb_qp = 0;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ret = ih264d_parse_imb_cabac(ps_dec, ps_cur_mb_info, u1_mb_type);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
ps_cur_deblk_mb->u1_mb_qp = ps_dec->u1_qp;
|
||
|
}
|
||
|
|
||
|
if(u1_mbaff)
|
||
|
{
|
||
|
ih264d_update_mbaff_left_nnz(ps_dec, ps_cur_mb_info);
|
||
|
}
|
||
|
|
||
|
|
||
|
if(ps_cur_mb_info->u1_topmb && u1_mbaff)
|
||
|
uc_more_data_flag = 1;
|
||
|
else
|
||
|
{
|
||
|
uc_more_data_flag = ih264d_decode_terminate(&ps_dec->s_cab_dec_env,
|
||
|
ps_bitstrm);
|
||
|
uc_more_data_flag = !uc_more_data_flag;
|
||
|
COPYTHECONTEXT("Decode Sliceterm",!uc_more_data_flag);
|
||
|
}
|
||
|
|
||
|
if(u1_mbaff)
|
||
|
{
|
||
|
if(!uc_more_data_flag && (0 == (i2_cur_mb_addr & 1)))
|
||
|
{
|
||
|
return ERROR_EOB_FLUSHBITS_T;
|
||
|
}
|
||
|
}
|
||
|
/* Next macroblock information */
|
||
|
i2_cur_mb_addr++;
|
||
|
/* Store the colocated information */
|
||
|
{
|
||
|
|
||
|
mv_pred_t *ps_mv_nmb_start = ps_dec->ps_mv_cur + (u1_num_mbs << 4);
|
||
|
mv_pred_t s_mvPred =
|
||
|
{
|
||
|
{ 0, 0, 0, 0 },
|
||
|
{ -1, -1 }, 0, 0};
|
||
|
ih264d_rep_mv_colz(
|
||
|
ps_dec, &s_mvPred, ps_mv_nmb_start, 0,
|
||
|
(UWORD8)(ps_dec->u1_cur_mb_fld_dec_flag << 1),
|
||
|
4, 4);
|
||
|
}
|
||
|
/*if num _cores is set to 3,compute bs will be done in another thread*/
|
||
|
if(ps_dec->u4_num_cores < 3)
|
||
|
{
|
||
|
if(ps_dec->u4_app_disable_deblk_frm == 0)
|
||
|
ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info,
|
||
|
(UWORD16)(u1_num_mbs >> u1_mbaff));
|
||
|
}
|
||
|
u1_num_mbs++;
|
||
|
|
||
|
}
|
||
|
|
||
|
/****************************************************************/
|
||
|
/* Check for End Of Row */
|
||
|
/****************************************************************/
|
||
|
u1_num_mbs_next = i2_pic_wdin_mbs - u2_mbx - 1;
|
||
|
u1_end_of_row = (!u1_num_mbs_next) && (!(u1_mbaff && (u1_num_mbs & 0x01)));
|
||
|
u1_tfr_n_mb = (u1_num_mbs == ps_dec->u1_recon_mb_grp) || u1_end_of_row
|
||
|
|| (!uc_more_data_flag);
|
||
|
ps_cur_mb_info->u1_end_of_slice = (!uc_more_data_flag);
|
||
|
|
||
|
if(u1_tfr_n_mb || (!uc_more_data_flag))
|
||
|
{
|
||
|
|
||
|
|
||
|
if(ps_dec->u1_separate_parse)
|
||
|
{
|
||
|
ih264d_parse_tfr_nmb(ps_dec, u1_mb_idx, u1_num_mbs,
|
||
|
u1_num_mbs_next, u1_tfr_n_mb, u1_end_of_row);
|
||
|
ps_dec->ps_nmb_info += u1_num_mbs;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ih264d_decode_recon_tfr_nmb(ps_dec, u1_mb_idx, u1_num_mbs,
|
||
|
u1_num_mbs_next, u1_tfr_n_mb,
|
||
|
u1_end_of_row);
|
||
|
}
|
||
|
ps_dec->u2_total_mbs_coded += u1_num_mbs;
|
||
|
if(u1_tfr_n_mb)
|
||
|
u1_num_mbs = 0;
|
||
|
u1_mb_idx = u1_num_mbs;
|
||
|
ps_dec->u1_mb_idx = u1_num_mbs;
|
||
|
|
||
|
}
|
||
|
}
|
||
|
while(uc_more_data_flag);
|
||
|
|
||
|
ps_dec->u4_num_mbs_cur_nmb = 0;
|
||
|
ps_dec->ps_cur_slice->u4_mbs_in_slice = i2_cur_mb_addr
|
||
|
|
||
|
- (u2_first_mb_in_slice << u1_mbaff);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* */
|
||
|
/* Function Name : ih264d_parse_ipcm_mb */
|
||
|
/* */
|
||
|
/* Description : This function decodes the pixel values of I_PCM Mb. */
|
||
|
/* */
|
||
|
/* Inputs : ps_dec, ps_cur_mb_info and mb number */
|
||
|
/* */
|
||
|
/* Description : This function reads the luma and chroma pixels directly */
|
||
|
/* from the bitstream when the mbtype is I_PCM and stores */
|
||
|
/* them in recon buffer. If the entropy coding mode is */
|
||
|
/* cabac, decoding engine is re-initialized. The nnzs and */
|
||
|
/* cabac contexts are appropriately modified. */
|
||
|
/* Returns : void */
|
||
|
/* */
|
||
|
/* Revision History: */
|
||
|
/* DD MM YYYY Author(s) Changes (Describe the changes made) */
|
||
|
/* 13 07 2002 Jay */
|
||
|
/* */
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
WORD32 ih264d_parse_ipcm_mb(dec_struct_t * ps_dec,
|
||
|
dec_mb_info_t *ps_cur_mb_info,
|
||
|
UWORD8 u1_mbNum)
|
||
|
{
|
||
|
dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm;
|
||
|
UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
|
||
|
UWORD8 *pu1_y, *pu1_u, *pu1_v;
|
||
|
WORD32 ret;
|
||
|
|
||
|
UWORD32 u4_rec_width_y, u4_rec_width_uv;
|
||
|
UWORD32 u1_num_mb_pair;
|
||
|
UWORD8 u1_x, u1_y;
|
||
|
/* CHANGED CODE */
|
||
|
tfr_ctxt_t *ps_frame_buf;
|
||
|
UWORD8 u1_mb_field_decoding_flag;
|
||
|
UWORD32 *pu4_buf;
|
||
|
UWORD8 *pu1_buf;
|
||
|
/* CHANGED CODE */
|
||
|
|
||
|
if(ps_dec->u1_separate_parse)
|
||
|
{
|
||
|
ps_frame_buf = &ps_dec->s_tran_addrecon_parse;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ps_frame_buf = &ps_dec->s_tran_addrecon;
|
||
|
}
|
||
|
/* align bistream to byte boundary. */
|
||
|
/* pcm_alignment_zero_bit discarded */
|
||
|
/* For XX GotoByteBoundary */
|
||
|
if(ps_bitstrm->u4_ofst & 0x07)
|
||
|
{
|
||
|
ps_bitstrm->u4_ofst += 8;
|
||
|
ps_bitstrm->u4_ofst &= 0xFFFFFFF8;
|
||
|
}
|
||
|
|
||
|
/* Store left Nnz as 16 for each 4x4 blk */
|
||
|
|
||
|
pu1_buf = ps_dec->pu1_left_nnz_y;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x10101010;
|
||
|
pu1_buf = ps_cur_mb_info->ps_curmb->pu1_nnz_y;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x10101010;
|
||
|
pu1_buf = ps_cur_mb_info->ps_curmb->pu1_nnz_uv;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x10101010;
|
||
|
pu1_buf = ps_dec->pu1_left_nnz_uv;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x10101010;
|
||
|
ps_cur_mb_info->u1_cbp = 0xff;
|
||
|
|
||
|
ps_dec->i1_prev_mb_qp_delta = 0;
|
||
|
/* Get neighbour MB's */
|
||
|
u1_num_mb_pair = (u1_mbNum >> u1_mbaff);
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* calculate the RECON buffer YUV pointers for the PCM data */
|
||
|
/*****************************************************************************/
|
||
|
/* CHANGED CODE */
|
||
|
u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag;
|
||
|
pu1_y = ps_frame_buf->pu1_dest_y + (u1_num_mb_pair << 4);
|
||
|
pu1_u = ps_frame_buf->pu1_dest_u + (u1_num_mb_pair << 4);
|
||
|
pu1_v = pu1_u + 1;
|
||
|
|
||
|
u4_rec_width_y = ps_dec->u2_frm_wd_y << u1_mb_field_decoding_flag;
|
||
|
u4_rec_width_uv = ps_dec->u2_frm_wd_uv << u1_mb_field_decoding_flag;
|
||
|
/* CHANGED CODE */
|
||
|
|
||
|
if(u1_mbaff)
|
||
|
{
|
||
|
UWORD8 u1_top_mb;
|
||
|
|
||
|
u1_top_mb = ps_cur_mb_info->u1_topmb;
|
||
|
|
||
|
if(u1_top_mb == 0)
|
||
|
{
|
||
|
pu1_y += (u1_mb_field_decoding_flag ?
|
||
|
(u4_rec_width_y >> 1) : (u4_rec_width_y << 4));
|
||
|
pu1_u += (u1_mb_field_decoding_flag ?
|
||
|
(u4_rec_width_uv) : (u4_rec_width_uv << 4));
|
||
|
pu1_v = pu1_u + 1;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Read Luma samples */
|
||
|
for(u1_y = 0; u1_y < 16; u1_y++)
|
||
|
{
|
||
|
for(u1_x = 0; u1_x < 16; u1_x++)
|
||
|
pu1_y[u1_x] = ih264d_get_bits_h264(ps_bitstrm, 8);
|
||
|
|
||
|
pu1_y += u4_rec_width_y;
|
||
|
}
|
||
|
|
||
|
/* Read Chroma samples */
|
||
|
for(u1_y = 0; u1_y < 8; u1_y++)
|
||
|
{
|
||
|
for(u1_x = 0; u1_x < 8; u1_x++)
|
||
|
pu1_u[u1_x * YUV420SP_FACTOR] = ih264d_get_bits_h264(ps_bitstrm, 8);
|
||
|
|
||
|
pu1_u += u4_rec_width_uv;
|
||
|
}
|
||
|
|
||
|
for(u1_y = 0; u1_y < 8; u1_y++)
|
||
|
{
|
||
|
for(u1_x = 0; u1_x < 8; u1_x++)
|
||
|
pu1_v[u1_x * YUV420SP_FACTOR] = ih264d_get_bits_h264(ps_bitstrm, 8);
|
||
|
|
||
|
pu1_v += u4_rec_width_uv;
|
||
|
}
|
||
|
|
||
|
if(CABAC == ps_dec->ps_cur_pps->u1_entropy_coding_mode)
|
||
|
{
|
||
|
UWORD32 *pu4_buf;
|
||
|
UWORD8 *pu1_buf;
|
||
|
ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info;
|
||
|
/* Re-initialize the cabac decoding engine. */
|
||
|
ret = ih264d_init_cabac_dec_envirnoment(&(ps_dec->s_cab_dec_env), ps_bitstrm);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
/* update the cabac contetxs */
|
||
|
p_curr_ctxt->u1_mb_type = CAB_I_PCM;
|
||
|
p_curr_ctxt->u1_cbp = 47;
|
||
|
p_curr_ctxt->u1_intra_chroma_pred_mode = 0;
|
||
|
p_curr_ctxt->u1_transform8x8_ctxt = 0;
|
||
|
ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0;
|
||
|
|
||
|
pu1_buf = ps_dec->pu1_left_nnz_y;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x01010101;
|
||
|
|
||
|
pu1_buf = ps_cur_mb_info->ps_curmb->pu1_nnz_y;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x01010101;
|
||
|
|
||
|
pu1_buf = ps_cur_mb_info->ps_curmb->pu1_nnz_uv;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x01010101;
|
||
|
|
||
|
pu1_buf = ps_dec->pu1_left_nnz_uv;
|
||
|
pu4_buf = (UWORD32 *)pu1_buf;
|
||
|
*pu4_buf = 0x01010101;
|
||
|
|
||
|
p_curr_ctxt->u1_yuv_dc_csbp = 0x7;
|
||
|
ps_dec->pu1_left_yuv_dc_csbp[0] = 0x7;
|
||
|
if(ps_dec->ps_cur_slice->u1_slice_type != I_SLICE)
|
||
|
{
|
||
|
|
||
|
MEMSET_16BYTES(&ps_dec->pu1_left_mv_ctxt_inc[0][0], 0);
|
||
|
memset(ps_dec->pi1_left_ref_idx_ctxt_inc, 0, 4);
|
||
|
MEMSET_16BYTES(p_curr_ctxt->u1_mv, 0);
|
||
|
memset(p_curr_ctxt->i1_ref_idx, 0, 4);
|
||
|
|
||
|
}
|
||
|
}
|
||
|
return OK;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
**************************************************************************
|
||
|
* \if Function name : ih264d_decode_islice \endif
|
||
|
*
|
||
|
* \brief
|
||
|
* Decodes an I Slice
|
||
|
*
|
||
|
*
|
||
|
* \return
|
||
|
* 0 on Success and Error code otherwise
|
||
|
**************************************************************************
|
||
|
*/
|
||
|
WORD32 ih264d_parse_islice(dec_struct_t *ps_dec,
|
||
|
UWORD16 u2_first_mb_in_slice)
|
||
|
{
|
||
|
dec_pic_params_t * ps_pps = ps_dec->ps_cur_pps;
|
||
|
dec_slice_params_t * ps_slice = ps_dec->ps_cur_slice;
|
||
|
UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer;
|
||
|
UWORD32 *pu4_bitstrm_ofst = &ps_dec->ps_bitstrm->u4_ofst;
|
||
|
UWORD32 u4_temp;
|
||
|
WORD32 i_temp;
|
||
|
WORD32 ret;
|
||
|
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* Read remaining contents of the slice header */
|
||
|
/*--------------------------------------------------------------------*/
|
||
|
/* dec_ref_pic_marking function */
|
||
|
/* G050 */
|
||
|
if(ps_slice->u1_nal_ref_idc != 0)
|
||
|
{
|
||
|
if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read)
|
||
|
{
|
||
|
i_temp = ih264d_read_mmco_commands(ps_dec);
|
||
|
if (i_temp < 0)
|
||
|
{
|
||
|
return ERROR_DBP_MANAGER_T;
|
||
|
}
|
||
|
ps_dec->u4_bitoffset = i_temp;
|
||
|
}
|
||
|
else
|
||
|
ps_dec->ps_bitstrm->u4_ofst += ps_dec->u4_bitoffset;
|
||
|
}
|
||
|
/* G050 */
|
||
|
|
||
|
/* Read slice_qp_delta */
|
||
|
WORD64 i8_temp = (WORD64)ps_pps->u1_pic_init_qp
|
||
|
+ ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
||
|
if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP))
|
||
|
return ERROR_INV_RANGE_QP_T;
|
||
|
ps_slice->u1_slice_qp = i8_temp;
|
||
|
COPYTHECONTEXT("SH: slice_qp_delta",
|
||
|
ps_slice->u1_slice_qp - ps_pps->u1_pic_init_qp);
|
||
|
|
||
|
if(ps_pps->u1_deblocking_filter_parameters_present_flag == 1)
|
||
|
{
|
||
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
||
|
COPYTHECONTEXT("SH: disable_deblocking_filter_idc", u4_temp);
|
||
|
|
||
|
if(u4_temp > SLICE_BOUNDARY_DBLK_DISABLED)
|
||
|
{
|
||
|
return ERROR_INV_SLICE_HDR_T;
|
||
|
}
|
||
|
ps_slice->u1_disable_dblk_filter_idc = u4_temp;
|
||
|
if(u4_temp != 1)
|
||
|
{
|
||
|
i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf)
|
||
|
<< 1;
|
||
|
if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF))
|
||
|
{
|
||
|
return ERROR_INV_SLICE_HDR_T;
|
||
|
}
|
||
|
ps_slice->i1_slice_alpha_c0_offset = i_temp;
|
||
|
COPYTHECONTEXT("SH: slice_alpha_c0_offset_div2",
|
||
|
ps_slice->i1_slice_alpha_c0_offset >> 1);
|
||
|
|
||
|
i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf)
|
||
|
<< 1;
|
||
|
if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF))
|
||
|
{
|
||
|
return ERROR_INV_SLICE_HDR_T;
|
||
|
}
|
||
|
ps_slice->i1_slice_beta_offset = i_temp;
|
||
|
COPYTHECONTEXT("SH: slice_beta_offset_div2",
|
||
|
ps_slice->i1_slice_beta_offset >> 1);
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ps_slice->i1_slice_alpha_c0_offset = 0;
|
||
|
ps_slice->i1_slice_beta_offset = 0;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ps_slice->u1_disable_dblk_filter_idc = 0;
|
||
|
ps_slice->i1_slice_alpha_c0_offset = 0;
|
||
|
ps_slice->i1_slice_beta_offset = 0;
|
||
|
}
|
||
|
|
||
|
/* Initialization to check if number of motion vector per 2 Mbs */
|
||
|
/* are exceeding the range or not */
|
||
|
ps_dec->u2_mv_2mb[0] = 0;
|
||
|
ps_dec->u2_mv_2mb[1] = 0;
|
||
|
|
||
|
|
||
|
/*set slice header cone to 2 ,to indicate correct header*/
|
||
|
ps_dec->u1_slice_header_done = 2;
|
||
|
|
||
|
if(ps_pps->u1_entropy_coding_mode)
|
||
|
{
|
||
|
SWITCHOFFTRACE; SWITCHONTRACECABAC;
|
||
|
if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag)
|
||
|
{
|
||
|
ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_mbaff;
|
||
|
}
|
||
|
else
|
||
|
ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_nonmbaff;
|
||
|
|
||
|
ret = ih264d_parse_islice_data_cabac(ps_dec, ps_slice,
|
||
|
u2_first_mb_in_slice);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
SWITCHONTRACE; SWITCHOFFTRACECABAC;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag)
|
||
|
{
|
||
|
ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_mbaff;
|
||
|
}
|
||
|
else
|
||
|
ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_nonmbaff;
|
||
|
ret = ih264d_parse_islice_data_cavlc(ps_dec, ps_slice,
|
||
|
u2_first_mb_in_slice);
|
||
|
if(ret != OK)
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return OK;
|
||
|
}
|