3dfa708b6e
* Loudness leveling support for encoder and decoder
- Addition of loudness leveling support to encoder and
decoder as per ISO/IEC 23003-4:2020/Amd.2:2023(E)
Testing:
Encoder: Smoke-test
Decoder: CTS and Conformance for x86, x86_64, armv7 and armv8 are
passing
* Addressed review comments
* Addressed minor nits in documentation
---------
Co-authored-by: Akshay Ragir <100833@ittiam.com>
59 lines
2.3 KiB
C
59 lines
2.3 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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#pragma once
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#define M_32 (32)
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#define M_16 (16)
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#define M_12 (12)
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#define IXHEAACE_OP_DELAY_OFFSET (6)
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typedef struct {
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WORD32 pre_transient_info[2];
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FLOAT32 *ptr_r_buffer[MAX_QMF_TIME_SLOTS];
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FLOAT32 *ptr_i_buffer[MAX_QMF_TIME_SLOTS];
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FLOAT32 *ptr_y_buffer[MAX_QMF_TIME_SLOTS * 2];
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WORD8 envelope_compensation[MAXIMUM_FREQ_COEFFS];
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WORD32 y_buffer_write_offset;
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WORD32 no_cols;
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WORD32 no_rows;
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WORD32 start_index;
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WORD32 time_slots;
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WORD32 time_step;
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WORD32 buffer_flag;
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WORD32 sbr_ratio_idx;
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} ixheaace_str_sbr_extr_env;
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typedef ixheaace_str_sbr_extr_env *ixheaace_pstr_sbr_extract_envelope;
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WORD32
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ixheaace_create_extract_sbr_envelope(WORD32 ch,
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ixheaace_pstr_sbr_extract_envelope pstr_sbr_ext_env,
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WORD32 start_index, WORD32 *ptr_common_buffer2,
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FLOAT32 *ptr_sbr_env_r_buf, FLOAT32 *ptr_sbr_env_i_buf,
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WORD32 frame_flag_480, ixheaace_sbr_codec_type sbr_codec);
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struct ixheaace_str_sbr_config_data;
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struct ixheaace_str_sbr_bitstream_data;
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struct ixheaace_str_enc_channel;
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struct ixheaace_str_common_data;
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struct ixheaace_ps_enc;
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VOID iusace_complex_fft_2048(FLOAT32 *ptr_x, FLOAT32 *ptr_scratch_fft);
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VOID iusace_complex_fft_4096(FLOAT32 *ptr_x_r, FLOAT32 *ptr_x_i, FLOAT32 *ptr_scratch_fft);
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