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1376 lines
55 KiB
1376 lines
55 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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/*!
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**************************************************************************
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* \file ih264d_parse_headers.c
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*
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* \brief
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* Contains High level syntax[above slice] parsing routines
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*
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* \date
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* 19/12/2002
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*
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* \author AI
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**************************************************************************
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*/
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#include <string.h>
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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 "ih264_defs.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_thread_parse_decode.h"
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#include "ih264d_thread_compute_bs.h"
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#include "ih264d_quant_scaling.h"
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#include "ih264d_defs.h"
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#include "ivd.h"
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#include "ih264d.h"
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/*****************************************************************************/
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/* */
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/* Function Name : ih264d_get_pre_sei_params */
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/* */
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/* Description : Gets valid pre-sei params in decoder struct from parse */
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/* struct. */
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/* Inputs : u1_nal_unit_type slice type */
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/* ps_dec Decoder parameters */
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/* Globals : None */
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/* Outputs : None */
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/* Returns : None */
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/* */
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/* Issues : None */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* Draft */
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/* */
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/*****************************************************************************/
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void ih264d_get_pre_sei_params(dec_struct_t *ps_dec, UWORD8 u1_nal_unit_type)
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{
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if((NULL != ps_dec->ps_sei) &&
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((0 == ps_dec->ps_sei->s_sei_ccv_params.u1_ccv_cancel_flag) &&
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(0 == ps_dec->ps_sei->s_sei_ccv_params.u1_ccv_persistence_flag)))
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{
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ps_dec->ps_sei->u1_sei_ccv_params_present_flag = 0;
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memset(&ps_dec->ps_sei->s_sei_ccv_params, 0, sizeof(sei_ccv_params_t));
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}
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if((NULL != ps_dec->ps_cur_sps) &&
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((1 == ps_dec->ps_cur_sps->u1_vui_parameters_present_flag) &&
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((2 != ps_dec->ps_cur_sps->s_vui.u1_colour_primaries) &&
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(2 != ps_dec->ps_cur_sps->s_vui.u1_matrix_coeffs) &&
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(2 != ps_dec->ps_cur_sps->s_vui.u1_tfr_chars) &&
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(4 != ps_dec->ps_cur_sps->s_vui.u1_tfr_chars) &&
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(5 != ps_dec->ps_cur_sps->s_vui.u1_tfr_chars))))
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{
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if((1 == ps_dec->ps_sei_parse->u1_sei_ccv_params_present_flag) ||
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(IDR_SLICE_NAL == u1_nal_unit_type))
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{
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ps_dec->ps_sei->u1_sei_ccv_params_present_flag =
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ps_dec->ps_sei_parse->u1_sei_ccv_params_present_flag;
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ps_dec->ps_sei->s_sei_ccv_params = ps_dec->ps_sei_parse->s_sei_ccv_params;
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}
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}
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else
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{
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ps_dec->ps_sei->u1_sei_ccv_params_present_flag = 0;
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memset(&ps_dec->ps_sei->s_sei_ccv_params, 0, sizeof(sei_ccv_params_t));
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}
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if(IDR_SLICE_NAL == u1_nal_unit_type)
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{
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ps_dec->ps_sei->u1_sei_mdcv_params_present_flag =
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ps_dec->ps_sei_parse->u1_sei_mdcv_params_present_flag;
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ps_dec->ps_sei->s_sei_mdcv_params = ps_dec->ps_sei_parse->s_sei_mdcv_params;
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ps_dec->ps_sei->u1_sei_cll_params_present_flag =
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ps_dec->ps_sei_parse->u1_sei_cll_params_present_flag;
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ps_dec->ps_sei->s_sei_cll_params = ps_dec->ps_sei_parse->s_sei_cll_params;
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ps_dec->ps_sei->u1_sei_ave_params_present_flag =
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ps_dec->ps_sei_parse->u1_sei_ave_params_present_flag;
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ps_dec->ps_sei->s_sei_ave_params = ps_dec->ps_sei_parse->s_sei_ave_params;
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}
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ps_dec->ps_sei_parse->u1_sei_mdcv_params_present_flag = 0;
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memset(&ps_dec->ps_sei_parse->s_sei_mdcv_params, 0, sizeof(sei_mdcv_params_t));
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ps_dec->ps_sei_parse->u1_sei_cll_params_present_flag = 0;
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memset(&ps_dec->ps_sei_parse->s_sei_cll_params, 0, sizeof(sei_cll_params_t));
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ps_dec->ps_sei_parse->u1_sei_ave_params_present_flag = 0;
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memset(&ps_dec->ps_sei_parse->s_sei_ave_params, 0, sizeof(sei_ave_params_t));
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ps_dec->ps_sei_parse->u1_sei_ccv_params_present_flag = 0;
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memset(&ps_dec->ps_sei_parse->s_sei_ccv_params, 0, sizeof(sei_ccv_params_t));
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}
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/*****************************************************************************/
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/* */
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/* Function Name : ih264d_parse_slice_partition */
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/* */
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/* Description : This function is intended to parse and decode slice part */
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/* itions. Currently it's not implemented. Decoder will */
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/* print a message, skips this NAL and continues */
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/* Inputs : ps_dec Decoder parameters */
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/* ps_bitstrm Bitstream */
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/* Globals : None */
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/* Processing : This functionality needs to be implemented */
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/* Outputs : None */
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/* Returns : None */
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/* */
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/* Issues : Not implemented */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 06 05 2002 NS Draft */
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/* */
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/*****************************************************************************/
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WORD32 ih264d_parse_slice_partition(dec_struct_t * ps_dec,
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dec_bit_stream_t * ps_bitstrm)
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{
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H264_DEC_DEBUG_PRINT("\nSlice partition not supported");
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UNUSED(ps_dec);
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UNUSED(ps_bitstrm);
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return (0);
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}
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/*****************************************************************************/
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/* */
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/* Function Name : ih264d_parse_sei */
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/* */
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/* Description : This function is intended to parse and decode SEI */
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/* Currently it's not implemented. Decoder will print a */
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/* message, skips this NAL and continues */
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/* Inputs : ps_dec Decoder parameters */
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/* ps_bitstrm Bitstream */
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/* Globals : None */
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/* Processing : This functionality needs to be implemented */
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/* Outputs : None */
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/* Returns : None */
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/* */
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/* Issues : Not implemented */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 06 05 2002 NS Draft */
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/* */
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/*****************************************************************************/
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WORD32 ih264d_parse_sei(dec_struct_t * ps_dec, dec_bit_stream_t * ps_bitstrm)
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{
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UNUSED(ps_dec);
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UNUSED(ps_bitstrm);
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return (0);
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}
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/*****************************************************************************/
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/* */
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/* Function Name : ih264d_parse_filler_data */
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/* */
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/* Description : This function is intended to parse and decode filler */
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/* data NAL. Currently it's not implemented. Decoder will */
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/* print a message, skips this NAL and continues */
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/* Inputs : ps_dec Decoder parameters */
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/* ps_bitstrm Bitstream */
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/* Globals : None */
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/* Processing : This functionality needs to be implemented */
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/* Outputs : None */
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/* Returns : None */
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/* */
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/* Issues : Not implemented */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 06 05 2002 NS Draft */
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/* */
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/*****************************************************************************/
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WORD32 ih264d_parse_filler_data(dec_struct_t * ps_dec,
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dec_bit_stream_t * ps_bitstrm)
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{
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UNUSED(ps_dec);
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UNUSED(ps_bitstrm);
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return (0);
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}
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/*****************************************************************************/
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/* */
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/* Function Name : ih264d_parse_end_of_stream */
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/* */
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/* Description : This function is intended to parse and decode end of */
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/* sequence. Currently it's not implemented. Decoder will */
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/* print a message, skips this NAL and continues */
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/* Inputs : ps_dec Decoder parameters */
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/* Globals : None */
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/* Processing : This functionality needs to be implemented */
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/* Outputs : None */
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/* Returns : None */
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/* */
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/* Issues : Not implemented */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 06 05 2002 NS Draft */
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/* */
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/*****************************************************************************/
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void ih264d_parse_end_of_stream(dec_struct_t * ps_dec)
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{
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UNUSED(ps_dec);
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return;
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}
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/*!
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**************************************************************************
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* \if Function name : ih264d_parse_pps \endif
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*
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* \brief
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* Decodes Picture Parameter set
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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_pps(dec_struct_t * ps_dec, dec_bit_stream_t * ps_bitstrm)
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{
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UWORD8 uc_temp;
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dec_seq_params_t * ps_sps = NULL;
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dec_pic_params_t * ps_pps = NULL;
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UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer;
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UWORD32 *pu4_bitstrm_ofst = &ps_dec->ps_bitstrm->u4_ofst;
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/* Variables used for error resilience checks */
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UWORD64 u8_temp;
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UWORD32 u4_temp;
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WORD32 i_temp;
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/* For High profile related syntax elements */
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UWORD8 u1_more_data_flag;
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WORD32 i4_i;
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if(!(ps_dec->i4_header_decoded & 1))
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return ERROR_INV_SPS_PPS_T;
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/*--------------------------------------------------------------------*/
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/* Decode pic_parameter_set_id and find corresponding pic params */
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/*--------------------------------------------------------------------*/
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u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if(u4_temp & MASK_ERR_PIC_SET_ID)
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return ERROR_INV_SPS_PPS_T;
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ps_pps = ps_dec->pv_scratch_sps_pps;
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*ps_pps = ps_dec->ps_pps[u4_temp];
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ps_pps->u1_pic_parameter_set_id = (WORD8)u4_temp;
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COPYTHECONTEXT("PPS: pic_parameter_set_id",ps_pps->u1_pic_parameter_set_id);
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/************************************************/
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/* initilization of High profile syntax element */
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/************************************************/
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ps_pps->i4_transform_8x8_mode_flag = 0;
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ps_pps->i4_pic_scaling_matrix_present_flag = 0;
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/*--------------------------------------------------------------------*/
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/* Decode seq_parameter_set_id and map it to a seq_parameter_set */
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/*--------------------------------------------------------------------*/
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u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if(u4_temp & MASK_ERR_SEQ_SET_ID)
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return ERROR_INV_SPS_PPS_T;
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COPYTHECONTEXT("PPS: seq_parameter_set_id",u4_temp);
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ps_sps = &ps_dec->ps_sps[u4_temp];
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if(FALSE == ps_sps->u1_is_valid)
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return ERROR_INV_SPS_PPS_T;
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ps_pps->ps_sps = ps_sps;
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/*--------------------------------------------------------------------*/
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/* Decode entropy_coding_mode */
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/*--------------------------------------------------------------------*/
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ps_pps->u1_entropy_coding_mode = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("PPS: entropy_coding_mode_flag",ps_pps->u1_entropy_coding_mode);
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ps_pps->u1_pic_order_present_flag = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("PPS: pic_order_present_flag",ps_pps->u1_pic_order_present_flag);
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/*--------------------------------------------------------------------*/
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/* Decode num_slice_groups_minus1 */
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/*--------------------------------------------------------------------*/
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u8_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf) + (UWORD64)1;
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if(u8_temp != 1)
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{
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return ERROR_FEATURE_UNAVAIL;
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}
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ps_pps->u1_num_slice_groups = u8_temp;
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COPYTHECONTEXT("PPS: num_slice_groups_minus1",ps_pps->u1_num_slice_groups -1);
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/*--------------------------------------------------------------------*/
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/* Other parameter set values */
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/*--------------------------------------------------------------------*/
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u8_temp = (UWORD64)1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if(u8_temp > H264_MAX_REF_IDX)
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return ERROR_REF_IDX;
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ps_pps->u1_num_ref_idx_lx_active[0] = u8_temp;
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COPYTHECONTEXT("PPS: num_ref_idx_l0_active_minus1",
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ps_pps->u1_num_ref_idx_lx_active[0] - 1);
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u8_temp = (UWORD64)1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if(u8_temp > H264_MAX_REF_IDX)
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return ERROR_REF_IDX;
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ps_pps->u1_num_ref_idx_lx_active[1] = u8_temp;
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COPYTHECONTEXT("PPS: num_ref_idx_l1_active_minus1",
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ps_pps->u1_num_ref_idx_lx_active[1] - 1);
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ps_pps->u1_wted_pred_flag = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("PPS: weighted prediction u4_flag",ps_pps->u1_wted_pred_flag);
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uc_temp = ih264d_get_bits_h264(ps_bitstrm, 2);
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COPYTHECONTEXT("PPS: weighted_bipred_idc",uc_temp);
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ps_pps->u1_wted_bipred_idc = uc_temp;
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if(ps_pps->u1_wted_bipred_idc > MAX_WEIGHT_BIPRED_IDC)
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return ERROR_INV_SPS_PPS_T;
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WORD64 i8_temp = (WORD64)26
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+ ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP))
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return ERROR_INV_RANGE_QP_T;
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ps_pps->u1_pic_init_qp = i8_temp;
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COPYTHECONTEXT("PPS: pic_init_qp_minus26",ps_pps->u1_pic_init_qp - 26);
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i8_temp = (WORD64)26 + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP))
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return ERROR_INV_RANGE_QP_T;
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ps_pps->u1_pic_init_qs = i8_temp;
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COPYTHECONTEXT("PPS: pic_init_qs_minus26",ps_pps->u1_pic_init_qs - 26);
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i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
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if((i_temp < -12) || (i_temp > 12))
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return ERROR_INV_RANGE_QP_T;
|
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ps_pps->i1_chroma_qp_index_offset = i_temp;
|
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COPYTHECONTEXT("PPS: chroma_qp_index_offset",ps_pps->i1_chroma_qp_index_offset);
|
|
|
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/***************************************************************************/
|
|
/* initialize second_chroma_qp_index_offset to i1_chroma_qp_index_offset if */
|
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/* second_chroma_qp_index_offset is not present in bit-ps_bitstrm */
|
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/***************************************************************************/
|
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ps_pps->i1_second_chroma_qp_index_offset =
|
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ps_pps->i1_chroma_qp_index_offset;
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ps_pps->u1_deblocking_filter_parameters_present_flag = ih264d_get_bit_h264(
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ps_bitstrm);
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COPYTHECONTEXT("PPS: deblocking_filter_control_present_flag",
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ps_pps->u1_deblocking_filter_parameters_present_flag);
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ps_pps->u1_constrained_intra_pred_flag = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("PPS: constrained_intra_pred_flag",
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ps_pps->u1_constrained_intra_pred_flag);
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ps_pps->u1_redundant_pic_cnt_present_flag = ih264d_get_bit_h264(ps_bitstrm);
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COPYTHECONTEXT("PPS: redundant_pic_cnt_present_flag",
|
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ps_pps->u1_redundant_pic_cnt_present_flag);
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|
|
/* High profile related syntax elements */
|
|
u1_more_data_flag = MORE_RBSP_DATA(ps_bitstrm);
|
|
if(u1_more_data_flag && (ps_pps->ps_sps->u1_profile_idc == HIGH_PROFILE_IDC))
|
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{
|
|
/* read transform_8x8_mode_flag */
|
|
ps_pps->i4_transform_8x8_mode_flag = (WORD32)ih264d_get_bit_h264(
|
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ps_bitstrm);
|
|
|
|
/* read pic_scaling_matrix_present_flag */
|
|
ps_pps->i4_pic_scaling_matrix_present_flag =
|
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(WORD32)ih264d_get_bit_h264(ps_bitstrm);
|
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|
|
if(ps_pps->i4_pic_scaling_matrix_present_flag)
|
|
{
|
|
/* read the scaling matrices */
|
|
for(i4_i = 0; i4_i < (6 + (ps_pps->i4_transform_8x8_mode_flag << 1)); i4_i++)
|
|
{
|
|
ps_pps->u1_pic_scaling_list_present_flag[i4_i] =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_pps->u1_pic_scaling_list_present_flag[i4_i])
|
|
{
|
|
WORD32 ret;
|
|
if(i4_i < 6)
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_pps->i2_pic_scalinglist4x4[i4_i],
|
|
16,
|
|
&ps_pps->u1_pic_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
else
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_pps->i2_pic_scalinglist8x8[i4_i - 6],
|
|
64,
|
|
&ps_pps->u1_pic_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
|
|
if(ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* read second_chroma_qp_index_offset syntax element */
|
|
i_temp = ih264d_sev(
|
|
pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if((i_temp < -12) || (i_temp > 12))
|
|
return ERROR_INV_RANGE_QP_T;
|
|
|
|
ps_pps->i1_second_chroma_qp_index_offset = i_temp;
|
|
}
|
|
|
|
/* In case bitstream read has exceeded the filled size, then
|
|
return an error */
|
|
if(EXCEED_OFFSET(ps_bitstrm))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_pps->u1_is_valid = TRUE;
|
|
ps_dec->ps_pps[ps_pps->u1_pic_parameter_set_id] = *ps_pps;
|
|
return OK;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : ih264d_parse_sps \endif
|
|
*
|
|
* \brief
|
|
* Decodes Sequence parameter set from the bitstream
|
|
*
|
|
* \return
|
|
* 0 on Success and Error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
UWORD32 ih264d_correct_level_idc(UWORD32 u4_level_idc, UWORD32 u4_total_mbs)
|
|
{
|
|
UWORD32 u4_max_mbs_allowed;
|
|
|
|
switch(u4_level_idc)
|
|
{
|
|
case H264_LEVEL_1_0:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_10;
|
|
break;
|
|
case H264_LEVEL_1_1:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_11;
|
|
break;
|
|
case H264_LEVEL_1_2:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_12;
|
|
break;
|
|
case H264_LEVEL_1_3:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_13;
|
|
break;
|
|
case H264_LEVEL_2_0:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_20;
|
|
break;
|
|
case H264_LEVEL_2_1:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_21;
|
|
break;
|
|
case H264_LEVEL_2_2:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_22;
|
|
break;
|
|
case H264_LEVEL_3_0:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_30;
|
|
break;
|
|
case H264_LEVEL_3_1:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_31;
|
|
break;
|
|
case H264_LEVEL_3_2:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_32;
|
|
break;
|
|
case H264_LEVEL_4_0:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_40;
|
|
break;
|
|
case H264_LEVEL_4_1:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_41;
|
|
break;
|
|
case H264_LEVEL_4_2:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_42;
|
|
break;
|
|
case H264_LEVEL_5_0:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_50;
|
|
break;
|
|
case H264_LEVEL_5_1:
|
|
default:
|
|
u4_max_mbs_allowed = MAX_MBS_LEVEL_51;
|
|
break;
|
|
|
|
}
|
|
|
|
/*correct of the level is incorrect*/
|
|
if(u4_total_mbs > u4_max_mbs_allowed)
|
|
{
|
|
if(u4_total_mbs > MAX_MBS_LEVEL_50)
|
|
u4_level_idc = H264_LEVEL_5_1;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_42)
|
|
u4_level_idc = H264_LEVEL_5_0;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_41)
|
|
u4_level_idc = H264_LEVEL_4_2;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_40)
|
|
u4_level_idc = H264_LEVEL_4_1;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_32)
|
|
u4_level_idc = H264_LEVEL_4_0;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_31)
|
|
u4_level_idc = H264_LEVEL_3_2;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_30)
|
|
u4_level_idc = H264_LEVEL_3_1;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_21)
|
|
u4_level_idc = H264_LEVEL_3_0;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_20)
|
|
u4_level_idc = H264_LEVEL_2_1;
|
|
else if(u4_total_mbs > MAX_MBS_LEVEL_10)
|
|
u4_level_idc = H264_LEVEL_2_0;
|
|
}
|
|
|
|
return (u4_level_idc);
|
|
|
|
}
|
|
WORD32 ih264d_parse_sps(dec_struct_t *ps_dec, dec_bit_stream_t *ps_bitstrm)
|
|
{
|
|
UWORD8 i;
|
|
dec_seq_params_t *ps_seq = NULL;
|
|
UWORD8 u1_profile_idc, u1_level_idc, u1_seq_parameter_set_id, u1_mb_aff_flag = 0;
|
|
UWORD16 i2_max_frm_num;
|
|
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
|
|
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
|
|
UWORD8 u1_frm, uc_constraint_set0_flag, uc_constraint_set1_flag;
|
|
WORD32 i4_cropped_ht, i4_cropped_wd;
|
|
UWORD32 u4_temp;
|
|
UWORD64 u8_temp;
|
|
UWORD32 u4_pic_height_in_map_units, u4_pic_width_in_mbs;
|
|
UWORD32 u2_pic_wd = 0;
|
|
UWORD32 u2_pic_ht = 0;
|
|
UWORD32 u2_frm_wd_y = 0;
|
|
UWORD32 u2_frm_ht_y = 0;
|
|
UWORD32 u2_frm_wd_uv = 0;
|
|
UWORD32 u2_frm_ht_uv = 0;
|
|
UWORD32 u2_crop_offset_y = 0;
|
|
UWORD32 u2_crop_offset_uv = 0;
|
|
WORD32 ret;
|
|
WORD32 num_reorder_frames;
|
|
/* High profile related syntax element */
|
|
WORD32 i4_i;
|
|
/* G050 */
|
|
UWORD8 u1_frame_cropping_flag, u1_frame_cropping_rect_left_ofst,
|
|
u1_frame_cropping_rect_right_ofst,
|
|
u1_frame_cropping_rect_top_ofst,
|
|
u1_frame_cropping_rect_bottom_ofst;
|
|
/* G050 */
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode seq_parameter_set_id and profile and level values */
|
|
/*--------------------------------------------------------------------*/
|
|
SWITCHONTRACE;
|
|
u1_profile_idc = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
COPYTHECONTEXT("SPS: profile_idc",u1_profile_idc);
|
|
|
|
/* G050 */
|
|
uc_constraint_set0_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
uc_constraint_set1_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
/*****************************************************/
|
|
/* Read 5 bits for uc_constraint_set3_flag (1 bit) */
|
|
/* and reserved_zero_4bits (4 bits) - Sushant */
|
|
/*****************************************************/
|
|
ih264d_get_bits_h264(ps_bitstrm, 5);
|
|
/* G050 */
|
|
|
|
/* Check whether particular profile is suported or not */
|
|
/* Check whether particular profile is suported or not */
|
|
if((u1_profile_idc != MAIN_PROFILE_IDC) &&
|
|
|
|
(u1_profile_idc != BASE_PROFILE_IDC) &&
|
|
|
|
(u1_profile_idc != HIGH_PROFILE_IDC)
|
|
|
|
)
|
|
{
|
|
|
|
/* Apart from Baseline, main and high profile,
|
|
* only extended profile is supported provided
|
|
* uc_constraint_set0_flag or uc_constraint_set1_flag are set to 1
|
|
*/
|
|
if((u1_profile_idc != EXTENDED_PROFILE_IDC) ||
|
|
((uc_constraint_set1_flag != 1) && (uc_constraint_set0_flag != 1)))
|
|
{
|
|
return (ERROR_FEATURE_UNAVAIL);
|
|
}
|
|
}
|
|
|
|
u1_level_idc = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
|
|
|
|
|
|
COPYTHECONTEXT("SPS: u4_level_idc",u1_level_idc);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp & MASK_ERR_SEQ_SET_ID)
|
|
return ERROR_INV_SPS_PPS_T;
|
|
u1_seq_parameter_set_id = u4_temp;
|
|
COPYTHECONTEXT("SPS: seq_parameter_set_id",
|
|
u1_seq_parameter_set_id);
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Find an seq param entry in seqparam array of decStruct */
|
|
/*--------------------------------------------------------------------*/
|
|
|
|
ps_seq = ps_dec->pv_scratch_sps_pps;
|
|
memset(ps_seq, 0, sizeof(dec_seq_params_t));
|
|
|
|
if(ps_dec->i4_header_decoded & 1)
|
|
{
|
|
*ps_seq = *ps_dec->ps_cur_sps;
|
|
}
|
|
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_seq->u1_profile_idc != u1_profile_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_seq->u1_level_idc != u1_level_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
ps_seq->u1_profile_idc = u1_profile_idc;
|
|
ps_seq->u1_level_idc = u1_level_idc;
|
|
ps_seq->u1_seq_parameter_set_id = u1_seq_parameter_set_id;
|
|
|
|
/*******************************************************************/
|
|
/* Initializations for high profile - Sushant */
|
|
/*******************************************************************/
|
|
ps_seq->i4_chroma_format_idc = 1;
|
|
ps_seq->i4_bit_depth_luma_minus8 = 0;
|
|
ps_seq->i4_bit_depth_chroma_minus8 = 0;
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag = 0;
|
|
ps_seq->i4_seq_scaling_matrix_present_flag = 0;
|
|
if(u1_profile_idc == HIGH_PROFILE_IDC)
|
|
{
|
|
|
|
/* reading chroma_format_idc */
|
|
ps_seq->i4_chroma_format_idc = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
|
|
/* Monochrome is not supported */
|
|
if(ps_seq->i4_chroma_format_idc != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_luma_minus8 */
|
|
ps_seq->i4_bit_depth_luma_minus8 = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_luma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_chroma_minus8 */
|
|
ps_seq->i4_bit_depth_chroma_minus8 = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_chroma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading qpprime_y_zero_transform_bypass_flag */
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag =
|
|
(WORD32)ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_qpprime_y_zero_transform_bypass_flag != 0)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/* reading seq_scaling_matrix_present_flag */
|
|
ps_seq->i4_seq_scaling_matrix_present_flag =
|
|
(WORD32)ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_seq_scaling_matrix_present_flag)
|
|
{
|
|
for(i4_i = 0; i4_i < 8; i4_i++)
|
|
{
|
|
ps_seq->u1_seq_scaling_list_present_flag[i4_i] =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
/* initialize u1_use_default_scaling_matrix_flag[i4_i] to zero */
|
|
/* before calling scaling list */
|
|
ps_seq->u1_use_default_scaling_matrix_flag[i4_i] = 0;
|
|
|
|
if(ps_seq->u1_seq_scaling_list_present_flag[i4_i])
|
|
{
|
|
if(i4_i < 6)
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_seq->i2_scalinglist4x4[i4_i],
|
|
16,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
else
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_seq->i2_scalinglist8x8[i4_i - 6],
|
|
64,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
if(ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode MaxFrameNum */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64)4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_FRAME_NUM)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_bits_in_frm_num = u8_temp;
|
|
COPYTHECONTEXT("SPS: log2_max_frame_num_minus4",
|
|
(ps_seq->u1_bits_in_frm_num - 4));
|
|
|
|
i2_max_frm_num = (1 << (ps_seq->u1_bits_in_frm_num));
|
|
ps_seq->u2_u4_max_pic_num_minus1 = i2_max_frm_num - 1;
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode picture order count and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(u4_temp > MAX_PIC_ORDER_CNT_TYPE)
|
|
{
|
|
return ERROR_INV_POC_TYPE_T;
|
|
}
|
|
ps_seq->u1_pic_order_cnt_type = u4_temp;
|
|
COPYTHECONTEXT("SPS: pic_order_cnt_type",ps_seq->u1_pic_order_cnt_type);
|
|
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = 1;
|
|
if(ps_seq->u1_pic_order_cnt_type == 0)
|
|
{
|
|
u8_temp = (UWORD64)4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_POC_LSB)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_log2_max_pic_order_cnt_lsb_minus = u8_temp;
|
|
ps_seq->i4_max_pic_order_cntLsb = (1 << u8_temp);
|
|
COPYTHECONTEXT("SPS: log2_max_pic_order_cnt_lsb_minus4",(u8_temp - 4));
|
|
}
|
|
else if(ps_seq->u1_pic_order_cnt_type == 1)
|
|
{
|
|
ps_seq->u1_delta_pic_order_always_zero_flag = ih264d_get_bit_h264(
|
|
ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: delta_pic_order_always_zero_flag",
|
|
ps_seq->u1_delta_pic_order_always_zero_flag);
|
|
|
|
ps_seq->i4_ofst_for_non_ref_pic = ih264d_sev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_non_ref_pic",
|
|
ps_seq->i4_ofst_for_non_ref_pic);
|
|
|
|
ps_seq->i4_ofst_for_top_to_bottom_field = ih264d_sev(
|
|
pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_top_to_bottom_field",
|
|
ps_seq->i4_ofst_for_top_to_bottom_field);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp > 255)
|
|
return ERROR_INV_SPS_PPS_T;
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames_in_pic_order_cnt_cycle",
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle);
|
|
|
|
for(i = 0; i < ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle; i++)
|
|
{
|
|
ps_seq->i4_ofst_for_ref_frame[i] = ih264d_sev(
|
|
pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_ref_frame",
|
|
ps_seq->i4_ofst_for_ref_frame[i]);
|
|
}
|
|
}
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if((u4_temp > H264_MAX_REF_PICS))
|
|
{
|
|
return ERROR_NUM_REF;
|
|
}
|
|
|
|
/* Compare with older num_ref_frames is header is already once */
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_seq->u1_num_ref_frames != u4_temp))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
ps_seq->u1_num_ref_frames = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames",ps_seq->u1_num_ref_frames);
|
|
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag = ih264d_get_bit_h264(
|
|
ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: gaps_in_frame_num_value_allowed_flag",
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag);
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode FrameWidth and FrameHeight and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64)1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
/* Check for unsupported resolutions*/
|
|
if(u8_temp > (H264_MAX_FRAME_WIDTH >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_width_in_mbs = u8_temp;
|
|
COPYTHECONTEXT("SPS: pic_width_in_mbs_minus1",
|
|
u4_pic_width_in_mbs - 1);
|
|
|
|
u8_temp = (UWORD64)1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if (u8_temp > (H264_MAX_FRAME_HEIGHT >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_height_in_map_units = u8_temp;
|
|
|
|
ps_seq->u2_frm_wd_in_mbs = u4_pic_width_in_mbs;
|
|
ps_seq->u2_frm_ht_in_mbs = u4_pic_height_in_map_units;
|
|
|
|
u2_pic_wd = (u4_pic_width_in_mbs << 4);
|
|
u2_pic_ht = (u4_pic_height_in_map_units << 4);
|
|
/*--------------------------------------------------------------------*/
|
|
/* Get the value of MaxMbAddress and Number of bits needed for it */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_seq->u2_max_mb_addr = (ps_seq->u2_frm_wd_in_mbs
|
|
* ps_seq->u2_frm_ht_in_mbs) - 1;
|
|
|
|
ps_seq->u2_total_num_of_mbs = ps_seq->u2_max_mb_addr + 1;
|
|
|
|
ps_seq->u1_level_idc = ih264d_correct_level_idc(
|
|
u1_level_idc, ps_seq->u2_total_num_of_mbs);
|
|
|
|
u1_frm = ih264d_get_bit_h264(ps_bitstrm);
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_seq->u1_frame_mbs_only_flag != u1_frm))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
ps_seq->u1_frame_mbs_only_flag = u1_frm;
|
|
|
|
COPYTHECONTEXT("SPS: frame_mbs_only_flag", u1_frm);
|
|
|
|
if(!u1_frm)
|
|
u1_mb_aff_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if((ps_dec->i4_header_decoded & 1)
|
|
&& (ps_seq->u1_mb_aff_flag != u1_mb_aff_flag))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if(!u1_frm)
|
|
{
|
|
u2_pic_ht <<= 1;
|
|
ps_seq->u1_mb_aff_flag = u1_mb_aff_flag;
|
|
COPYTHECONTEXT("SPS: mb_adaptive_frame_field_flag",
|
|
ps_seq->u1_mb_aff_flag);
|
|
|
|
}
|
|
else
|
|
ps_seq->u1_mb_aff_flag = 0;
|
|
|
|
ps_seq->u1_direct_8x8_inference_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
COPYTHECONTEXT("SPS: direct_8x8_inference_flag",
|
|
ps_seq->u1_direct_8x8_inference_flag);
|
|
|
|
/* G050 */
|
|
u1_frame_cropping_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: frame_cropping_flag",u1_frame_cropping_flag);
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
u1_frame_cropping_rect_left_ofst = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_left_offset",
|
|
u1_frame_cropping_rect_left_ofst);
|
|
u1_frame_cropping_rect_right_ofst = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_right_offset",
|
|
u1_frame_cropping_rect_right_ofst);
|
|
u1_frame_cropping_rect_top_ofst = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_top_offset",
|
|
u1_frame_cropping_rect_top_ofst);
|
|
u1_frame_cropping_rect_bottom_ofst = ih264d_uev(pu4_bitstrm_ofst,
|
|
pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_bottom_offset",
|
|
u1_frame_cropping_rect_bottom_ofst);
|
|
}
|
|
/* G050 */
|
|
|
|
ps_seq->u1_vui_parameters_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: vui_parameters_present_flag",
|
|
ps_seq->u1_vui_parameters_present_flag);
|
|
|
|
u2_frm_wd_y = u2_pic_wd + (UWORD8)(PAD_LEN_Y_H << 1);
|
|
if(1 == ps_dec->u4_share_disp_buf)
|
|
{
|
|
if(ps_dec->u4_app_disp_width > u2_frm_wd_y)
|
|
u2_frm_wd_y = ps_dec->u4_app_disp_width;
|
|
}
|
|
|
|
u2_frm_ht_y = u2_pic_ht + (UWORD8)(PAD_LEN_Y_V << 2);
|
|
u2_frm_wd_uv = u2_pic_wd + (UWORD8)(PAD_LEN_UV_H << 2);
|
|
u2_frm_wd_uv = MAX(u2_frm_wd_uv, u2_frm_wd_y);
|
|
|
|
u2_frm_ht_uv = (u2_pic_ht >> 1) + (UWORD8)(PAD_LEN_UV_V << 2);
|
|
u2_frm_ht_uv = MAX(u2_frm_ht_uv, (u2_frm_ht_y >> 1));
|
|
|
|
|
|
/* Calculate display picture width, height and start u4_ofst from YUV420 */
|
|
/* pictute buffers as per cropping information parsed above */
|
|
{
|
|
UWORD16 u2_rgt_ofst = 0;
|
|
UWORD16 u2_lft_ofst = 0;
|
|
UWORD16 u2_top_ofst = 0;
|
|
UWORD16 u2_btm_ofst = 0;
|
|
UWORD8 u1_frm_mbs_flag;
|
|
UWORD8 u1_vert_mult_factor;
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
/* Calculate right and left u4_ofst for cropped picture */
|
|
u2_rgt_ofst = u1_frame_cropping_rect_right_ofst << 1;
|
|
u2_lft_ofst = u1_frame_cropping_rect_left_ofst << 1;
|
|
|
|
/* Know frame MBs only u4_flag */
|
|
u1_frm_mbs_flag = (1 == ps_seq->u1_frame_mbs_only_flag);
|
|
|
|
/* Simplify the vertical u4_ofst calculation from field/frame */
|
|
u1_vert_mult_factor = (2 - u1_frm_mbs_flag);
|
|
|
|
/* Calculate bottom and top u4_ofst for cropped picture */
|
|
u2_btm_ofst = (u1_frame_cropping_rect_bottom_ofst
|
|
<< u1_vert_mult_factor);
|
|
u2_top_ofst = (u1_frame_cropping_rect_top_ofst
|
|
<< u1_vert_mult_factor);
|
|
}
|
|
|
|
/* Calculate u4_ofst from start of YUV 420 picture buffer to start of*/
|
|
/* cropped picture buffer */
|
|
u2_crop_offset_y = (u2_frm_wd_y * u2_top_ofst) + (u2_lft_ofst);
|
|
u2_crop_offset_uv = (u2_frm_wd_uv * (u2_top_ofst >> 1))
|
|
+ (u2_lft_ofst >> 1) * YUV420SP_FACTOR;
|
|
/* Calculate the display picture width and height based on crop */
|
|
/* information */
|
|
i4_cropped_ht = (WORD32)u2_pic_ht - (WORD32)(u2_btm_ofst + u2_top_ofst);
|
|
i4_cropped_wd = (WORD32)u2_pic_wd - (WORD32)(u2_rgt_ofst + u2_lft_ofst);
|
|
|
|
if((i4_cropped_ht < MB_SIZE) || (i4_cropped_wd < MB_SIZE))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_pic_wd != u2_pic_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_disp_width != i4_cropped_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_pic_ht != u2_pic_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_disp_height != i4_cropped_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
/* Check again for unsupported resolutions with updated values*/
|
|
if((u2_pic_wd > H264_MAX_FRAME_WIDTH) || (u2_pic_ht > H264_MAX_FRAME_HEIGHT)
|
|
|| (u2_pic_wd < H264_MIN_FRAME_WIDTH) || (u2_pic_ht < H264_MIN_FRAME_HEIGHT)
|
|
|| (u2_pic_wd * (UWORD32)u2_pic_ht > H264_MAX_FRAME_SIZE))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
|
|
/* If MBAff is enabled, decoder support is limited to streams with
|
|
* width less than half of H264_MAX_FRAME_WIDTH.
|
|
* In case of MBAff decoder processes two rows at a time
|
|
*/
|
|
if((u2_pic_wd << ps_seq->u1_mb_aff_flag) > H264_MAX_FRAME_WIDTH)
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
|
|
}
|
|
|
|
/* Backup num_reorder_frames if header is already decoded */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
num_reorder_frames = (WORD32)ps_seq->s_vui.u4_num_reorder_frames;
|
|
}
|
|
else
|
|
{
|
|
num_reorder_frames = -1;
|
|
}
|
|
if(1 == ps_seq->u1_vui_parameters_present_flag)
|
|
{
|
|
ret = ih264d_parse_vui_parametres(&ps_seq->s_vui, ps_bitstrm);
|
|
if(ret != OK)
|
|
return ret;
|
|
}
|
|
|
|
/* Compare older num_reorder_frames with the new one if header is already decoded */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(-1 != num_reorder_frames) &&
|
|
(1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag) &&
|
|
((WORD32)ps_seq->s_vui.u4_num_reorder_frames != num_reorder_frames))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
/* In case bitstream read has exceeded the filled size, then
|
|
return an error */
|
|
if (EXCEED_OFFSET(ps_bitstrm))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* All initializations to ps_dec are beyond this point */
|
|
/*--------------------------------------------------------------------*/
|
|
{
|
|
WORD32 reorder_depth = ih264d_get_dpb_size(ps_seq);
|
|
if((1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
reorder_depth = ps_seq->s_vui.u4_num_reorder_frames + 1;
|
|
}
|
|
|
|
if (reorder_depth > H264_MAX_REF_PICS)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if(ps_seq->u1_frame_mbs_only_flag != 1)
|
|
reorder_depth *= 2;
|
|
ps_dec->i4_reorder_depth = reorder_depth + DISPLAY_LATENCY;
|
|
}
|
|
ps_dec->u2_disp_height = i4_cropped_ht;
|
|
ps_dec->u2_disp_width = i4_cropped_wd;
|
|
|
|
ps_dec->u2_pic_wd = u2_pic_wd;
|
|
ps_dec->u2_pic_ht = u2_pic_ht;
|
|
|
|
/* Determining the Width and Height of Frame from that of Picture */
|
|
ps_dec->u2_frm_wd_y = u2_frm_wd_y;
|
|
ps_dec->u2_frm_ht_y = u2_frm_ht_y;
|
|
|
|
ps_dec->u2_frm_wd_uv = u2_frm_wd_uv;
|
|
ps_dec->u2_frm_ht_uv = u2_frm_ht_uv;
|
|
ps_dec->s_pad_mgr.u1_pad_len_y_v = (UWORD8)(PAD_LEN_Y_V << (1 - u1_frm));
|
|
ps_dec->s_pad_mgr.u1_pad_len_cr_v = (UWORD8)(PAD_LEN_UV_V << (1 - u1_frm));
|
|
|
|
ps_dec->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs;
|
|
ps_dec->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs;
|
|
|
|
ps_dec->u2_crop_offset_y = u2_crop_offset_y;
|
|
ps_dec->u2_crop_offset_uv = u2_crop_offset_uv;
|
|
|
|
ps_seq->u1_is_valid = TRUE;
|
|
ps_dec->ps_sps[u1_seq_parameter_set_id] = *ps_seq;
|
|
ps_dec->ps_cur_sps = &ps_dec->ps_sps[u1_seq_parameter_set_id];
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : ih264d_parse_end_of_sequence \endif
|
|
*
|
|
* \brief
|
|
* Decodes End of Sequence.
|
|
*
|
|
* \param ps_bitstrm : Pointer to bit ps_bitstrm containing the NAL unit
|
|
*
|
|
* \return
|
|
* 0 on Success and error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
WORD32 ih264d_parse_end_of_sequence(dec_struct_t * ps_dec)
|
|
{
|
|
WORD32 ret;
|
|
|
|
ret = ih264d_end_of_pic_processing(ps_dec);
|
|
return ret;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : AcessUnitDelimiterRbsp \endif
|
|
*
|
|
* \brief
|
|
* Decodes AcessUnitDelimiterRbsp.
|
|
*
|
|
* \param ps_bitstrm : Pointer to bit ps_bitstrm containing the NAL unit
|
|
*
|
|
* \return
|
|
* 0 on Success and error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
|
|
WORD32 ih264d_access_unit_delimiter_rbsp(dec_struct_t * ps_dec)
|
|
{
|
|
UWORD8 u1_primary_pic_type;
|
|
u1_primary_pic_type = ih264d_get_bits_h264(ps_dec->ps_bitstrm, 3);
|
|
switch(u1_primary_pic_type)
|
|
{
|
|
case I_PIC:
|
|
case SI_PIC:
|
|
case ISI_PIC:
|
|
ps_dec->ps_dec_err_status->u1_pic_aud_i = PIC_TYPE_I;
|
|
break;
|
|
default:
|
|
ps_dec->ps_dec_err_status->u1_pic_aud_i = PIC_TYPE_UNKNOWN;
|
|
}
|
|
return (0);
|
|
}
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : ih264d_parse_nal_unit \endif
|
|
*
|
|
* \brief
|
|
* Decodes NAL unit
|
|
*
|
|
* \return
|
|
* 0 on Success and error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
|
|
WORD32 ih264d_parse_nal_unit(iv_obj_t *dec_hdl,
|
|
ivd_video_decode_op_t *ps_dec_op,
|
|
UWORD8 *pu1_buf,
|
|
UWORD32 u4_length)
|
|
{
|
|
|
|
dec_bit_stream_t *ps_bitstrm;
|
|
|
|
|
|
dec_struct_t *ps_dec = (dec_struct_t *)dec_hdl->pv_codec_handle;
|
|
ivd_video_decode_ip_t *ps_dec_in =
|
|
(ivd_video_decode_ip_t *)ps_dec->pv_dec_in;
|
|
dec_slice_params_t * ps_cur_slice = ps_dec->ps_cur_slice;
|
|
UWORD8 u1_first_byte, u1_nal_ref_idc;
|
|
UWORD8 u1_nal_unit_type;
|
|
WORD32 i_status = OK;
|
|
ps_bitstrm = ps_dec->ps_bitstrm;
|
|
|
|
if(pu1_buf)
|
|
{
|
|
if(u4_length)
|
|
{
|
|
ps_dec_op->u4_frame_decoded_flag = 0;
|
|
ih264d_process_nal_unit(ps_dec->ps_bitstrm, pu1_buf,
|
|
u4_length);
|
|
|
|
SWITCHOFFTRACE;
|
|
u1_first_byte = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
|
|
if(NAL_FORBIDDEN_BIT(u1_first_byte))
|
|
{
|
|
H264_DEC_DEBUG_PRINT("\nForbidden bit set in Nal Unit, Let's try\n");
|
|
}
|
|
u1_nal_unit_type = NAL_UNIT_TYPE(u1_first_byte);
|
|
// if any other nal unit other than slice nal is encountered in between a
|
|
// frame break out of loop without consuming header
|
|
if ((ps_dec->u4_slice_start_code_found == 1)
|
|
&& (ps_dec->u1_pic_decode_done != 1)
|
|
&& (u1_nal_unit_type > IDR_SLICE_NAL))
|
|
{
|
|
return ERROR_INCOMPLETE_FRAME;
|
|
}
|
|
ps_dec->u1_nal_unit_type = u1_nal_unit_type;
|
|
u1_nal_ref_idc = (UWORD8)(NAL_REF_IDC(u1_first_byte));
|
|
//Skip all NALUs if SPS and PPS are not decoded
|
|
switch(u1_nal_unit_type)
|
|
{
|
|
case SLICE_DATA_PARTITION_A_NAL:
|
|
case SLICE_DATA_PARTITION_B_NAL:
|
|
case SLICE_DATA_PARTITION_C_NAL:
|
|
if(!ps_dec->i4_decode_header)
|
|
ih264d_parse_slice_partition(ps_dec, ps_bitstrm);
|
|
|
|
break;
|
|
|
|
case IDR_SLICE_NAL:
|
|
case SLICE_NAL:
|
|
|
|
/* ! */
|
|
DEBUG_THREADS_PRINTF("Decoding a slice NAL\n");
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
if(ps_dec->i4_header_decoded == 3)
|
|
{
|
|
ih264d_get_pre_sei_params(ps_dec, u1_nal_unit_type);
|
|
/* ! */
|
|
ps_dec->u4_slice_start_code_found = 1;
|
|
|
|
ih264d_rbsp_to_sodb(ps_dec->ps_bitstrm);
|
|
|
|
i_status = ih264d_parse_decode_slice(
|
|
(UWORD8)(u1_nal_unit_type
|
|
== IDR_SLICE_NAL),
|
|
u1_nal_ref_idc, ps_dec);
|
|
|
|
if(i_status != OK)
|
|
{
|
|
return i_status;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
H264_DEC_DEBUG_PRINT(
|
|
"\nSlice NAL Supplied but no header has been supplied\n");
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SEI_NAL:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_rbsp_to_sodb(ps_dec->ps_bitstrm);
|
|
i_status = ih264d_parse_sei_message(ps_dec, ps_bitstrm);
|
|
if(i_status != OK)
|
|
return i_status;
|
|
ih264d_parse_sei(ps_dec, ps_bitstrm);
|
|
}
|
|
break;
|
|
case SEQ_PARAM_NAL:
|
|
/* ! */
|
|
ih264d_rbsp_to_sodb(ps_dec->ps_bitstrm);
|
|
i_status = ih264d_parse_sps(ps_dec, ps_bitstrm);
|
|
ps_dec->u4_sps_cnt_in_process++;
|
|
/*If a resolution change happens within a process call, due to multiple sps
|
|
* we will not support it.
|
|
*/
|
|
if((ps_dec->u4_sps_cnt_in_process > 1 ) &&
|
|
(i_status == IVD_RES_CHANGED))
|
|
{
|
|
i_status = ERROR_INV_SPS_PPS_T;
|
|
ps_dec->u1_res_changed = 0;
|
|
}
|
|
if(i_status == ERROR_INV_SPS_PPS_T)
|
|
return i_status;
|
|
if(!i_status)
|
|
ps_dec->i4_header_decoded |= 0x1;
|
|
break;
|
|
|
|
case PIC_PARAM_NAL:
|
|
/* ! */
|
|
ih264d_rbsp_to_sodb(ps_dec->ps_bitstrm);
|
|
i_status = ih264d_parse_pps(ps_dec, ps_bitstrm);
|
|
if(i_status == ERROR_INV_SPS_PPS_T)
|
|
return i_status;
|
|
if(!i_status)
|
|
ps_dec->i4_header_decoded |= 0x2;
|
|
break;
|
|
case ACCESS_UNIT_DELIMITER_RBSP:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_access_unit_delimiter_rbsp(ps_dec);
|
|
}
|
|
break;
|
|
//Let us ignore the END_OF_SEQ_RBSP NAL and decode even after this NAL
|
|
case END_OF_STREAM_RBSP:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_parse_end_of_stream(ps_dec);
|
|
}
|
|
break;
|
|
case FILLER_DATA_NAL:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_parse_filler_data(ps_dec, ps_bitstrm);
|
|
}
|
|
break;
|
|
default:
|
|
H264_DEC_DEBUG_PRINT("\nUnknown NAL type %d\n", u1_nal_unit_type);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return i_status;
|
|
|
|
}
|
|
|