55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#include "ixheaacd_type_def.h"
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#include "ixheaacd_bitbuffer.h"
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#include "ixheaacd_mps_aac_struct.h"
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#include "ixheaacd_mps_res_rom.h"
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#include "ixheaacd_error_codes.h"
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WORD32 ixheaacd_res_c_pulse_data_read(ia_bit_buf_struct *it_bit_buf,
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ia_mps_dec_residual_pulse_data_struct *pulse_data,
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ia_mps_dec_residual_aac_tables_struct *aac_tables_ptr) {
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WORD32 i, k;
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WORD32 error = 0;
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pulse_data->pulse_data_present = (FLAG)ixheaacd_read_bits_buf(it_bit_buf, 1);
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if (pulse_data->pulse_data_present) {
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WORD32 tmp = ixheaacd_read_bits_buf(it_bit_buf, 8);
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pulse_data->number_pulse = tmp >> 6;
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pulse_data->pulse_start_band = tmp & 0x3F;
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if (pulse_data->pulse_start_band >= 52) {
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return (WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_PULSEDATA_ERROR;
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}
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k = aac_tables_ptr->sfb_index_long[pulse_data->pulse_start_band];
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for (i = 0; i <= pulse_data->number_pulse; i++) {
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WORD32 tmp = ixheaacd_read_bits_buf(it_bit_buf, 9);
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pulse_data->pulse_offset[i] = tmp >> 4;
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pulse_data->pulse_amp[i] = tmp & 0xF;
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k += pulse_data->pulse_offset[i];
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if (k >= 1024) error = (WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_PULSEDATA_ERROR;
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}
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}
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return error;
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}
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