/*
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* Copyright (C) 2003 - 2016 Sony Corporation
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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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#ifndef _LDAC_H
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#define _LDAC_H
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#include "ldaclib.h"
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#include "struct_ldac.h"
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/***************************************************************************************************
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Macro Definitions
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***************************************************************************************************/
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/* Configuration */
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#define LDAC_SYNCWORDBITS 8
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#define LDAC_SYNCWORD 0xAA
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/** Sampling Rate **/
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#define LDAC_SMPLRATEBITS 3
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#define LDAC_NSMPLRATEID 6
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#define LDAC_NSUPSMPLRATEID 4
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#define LDAC_SMPLRATEID_0 0x0
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#define LDAC_SMPLRATEID_1 0x1
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#define LDAC_SMPLRATEID_2 0x2
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#define LDAC_SMPLRATEID_3 0x3
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/** Channel **/
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#define LDAC_CHCONFIG1BITS 3
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#define LDAC_CHCONFIG2BITS 2
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#define LDAC_NCHCONFIGID 8
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#define LDAC_MAXNCH 2
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#define LDAC_CHANNEL_1CH 1
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#define LDAC_CHANNEL_2CH 2
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#define LDAC_CHCONFIGID_MN 0
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#define LDAC_CHCONFIGID_DL 1
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#define LDAC_CHCONFIGID_ST 2
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/** Frame Length **/
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#define LDAC_FRAMELEN1BITS 11
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#define LDAC_FRAMELEN2BITS 9
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#define LDAC_MAXNBYTES 1024
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#define LDAC_MAXSUPNBYTES 512
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#define LDAC_MINSUPNBYTES 22
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/** Frame Status **/
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#define LDAC_FRAMESTATBITS 2
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#define LDAC_FRMSTAT_LEV_0 0
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#define LDAC_FRMSTAT_LEV_1 1
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#define LDAC_FRMSTAT_LEV_2 2
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#define LDAC_FRMSTAT_LEV_3 3
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/** Other **/
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#define LDAC_RESERVE1BITS 2
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#define LDAC_RESERVE2BITS 5
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#define LDAC_DUMMYCODE 0x00
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/* Signal Processing */
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#define LDAC_NFRAME 2
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#define LDAC_NSFTSTEP 5
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/** Frame Samples (log base 2 of) **/
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#define LDAC_NUMLNN 2
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#define LDAC_MAXLNN 8
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#define LDAC_2FSLNN 8
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#define LDAC_1FSLNN 7
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/** Frame Samples **/
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#define LDAC_MAXLSU (1<<LDAC_MAXLNN)
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#define LDAC_2FSLSU (1<<LDAC_2FSLNN)
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#define LDAC_1FSLSU (1<<LDAC_1FSLNN)
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/** Band **/
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#define LDAC_MAXNBANDS 16
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#define LDAC_2FSNBANDS 16
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#define LDAC_1FSNBANDS 12
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/** QU **/
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#define LDAC_MAXGRADQU 50
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#define LDAC_MAXNQUS 34
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#define LDAC_2FSNQUS 34
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#define LDAC_1FSNQUS 26
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#define LDAC_MAXNSPS 16
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/** Frame Status Analysis **/
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#define LDAC_NSP_PSEUDOANA 128
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#define LDAC_NSP_LOWENERGY 12
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#define LDAC_TH_ZCROSNUM 90
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#define LDAC_MAXCNT_FRMANA 10
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/* Stream Syntax */
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#define LDAC_BLKID_MONO 0
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#define LDAC_BLKID_STEREO 1
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#define LDAC_FILLCODE 0x01
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/** Band Info **/
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#define LDAC_NBANDBITS 4
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#define LDAC_BAND_OFFSET 2
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/** Gradient Data **/
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#define LDAC_GRADMODEBITS 2
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#define LDAC_GRADOSBITS 5
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#define LDAC_MAXGRADOS 31
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#define LDAC_DEFGRADOSH 31
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#define LDAC_GRADQU0BITS 6
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#define LDAC_GRADQU1BITS 5
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#define LDAC_DEFGRADQUH 26
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#define LDAC_NADJQUBITS 5
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#define LDAC_MAXNADJQUS 32
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/** Scale Factor Data **/
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#define LDAC_IDSFBITS 5
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#define LDAC_NIDSF 32
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#define LDAC_SFCMODEBITS 1
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#define LDAC_NSFCMODE 2
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#define LDAC_SFCWTBLBITS 3
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#define LDAC_NSFCWTBL 8
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#define LDAC_SFCBLENBITS 2
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#define LDAC_MINSFCBLEN_0 3
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#define LDAC_MAXSFCBLEN_0 6
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#define LDAC_MINSFCBLEN_1 2
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#define LDAC_MAXSFCBLEN_1 5
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#define LDAC_MINSFCBLEN_2 2
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#define LDAC_MAXSFCBLEN_2 5
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/** Spectrum/Residual Data **/
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#define LDAC_NIDWL 16
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#define LDAC_MINIDWL1 1
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#define LDAC_MAXIDWL1 15
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#define LDAC_MAXIDWL2 15
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#define LDAC_2DIMSPECBITS 3
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#define LDAC_N2DIMSPECENCTBL 16
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#define LDAC_N2DIMSPECDECTBL 8
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#define LDAC_4DIMSPECBITS 7
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#define LDAC_N4DIMSPECENCTBL 256
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#define LDAC_N4DIMSPECDECTBL 81
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/** Bit Operation **/
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#define LDAC_LOC_SHIFT 3
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#define LDAC_LOC_MASK 0x7
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#define LDAC_BYTESIZE 8
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#define LDAC_MAXBITNUM 8192
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/* Flag */
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#define LDAC_FLAGBITS 1
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#define LDAC_TRUE 1
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#define LDAC_FALSE 0
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/* Mode */
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#define LDAC_MODE_0 0
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#define LDAC_MODE_1 1
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#define LDAC_MODE_2 2
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#define LDAC_MODE_3 3
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/***************************************************************************************************
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Structure Definitions
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***************************************************************************************************/
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typedef struct _sfinfo_ldac SFINFO;
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typedef struct _config_info_ldac CFG;
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typedef struct _audio_block_ldac AB;
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typedef struct _audio_channel_ldac AC;
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typedef struct _audio_channel_sub_ldac ACSUB;
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/* Configuration Information Structure */
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struct _config_info_ldac {
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int syncword;
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int smplrate_id;
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int chconfig_id;
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int ch;
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int frame_length;
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int frame_status;
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};
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/* Audio Channel (AC) Sub Structure */
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#ifndef _32BIT_FIXED_POINT
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struct _audio_channel_sub_ldac {
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SCALAR a_time[LDAC_MAXLSU*LDAC_NFRAME];
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SCALAR a_spec[LDAC_MAXLSU];
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};
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#else /* _32BIT_FIXED_POINT */
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struct _audio_channel_sub_ldac {
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INT32 a_time[LDAC_MAXLSU*LDAC_NFRAME];
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INT32 a_spec[LDAC_MAXLSU];
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};
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#endif /* _32BIT_FIXED_POINT */
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/* Audio Channel (AC) Structure */
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struct _audio_channel_ldac {
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int ich;
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int frmana_cnt;
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int sfc_mode;
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int sfc_bitlen;
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int sfc_offset;
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int sfc_weight;
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int a_idsf[LDAC_MAXNQUS];
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int a_idwl1[LDAC_MAXNQUS];
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int a_idwl2[LDAC_MAXNQUS];
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int a_addwl[LDAC_MAXNQUS];
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int a_tmp[LDAC_MAXNQUS];
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int a_qspec[LDAC_MAXLSU];
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int a_rspec[LDAC_MAXLSU];
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AB *p_ab;
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ACSUB *p_acsub;
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};
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/* Audio Block (AB) Structure */
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struct _audio_block_ldac {
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int blk_type;
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int blk_nchs;
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int nbands;
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int nqus;
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int grad_mode;
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int grad_qu_l;
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int grad_qu_h;
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int grad_os_l;
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int grad_os_h;
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int a_grad[LDAC_MAXGRADQU];
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int nadjqus;
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int abc_status;
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int nbits_ab;
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int nbits_band;
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int nbits_grad;
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int nbits_scfc;
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int nbits_spec;
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int nbits_avail;
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int nbits_used;
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int *p_smplrate_id;
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int *p_error_code;
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AC *ap_ac[2];
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};
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/* Sound Frame Structure */
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struct _sfinfo_ldac {
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CFG cfg;
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AB *p_ab;
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AC *ap_ac[LDAC_MAXNCH];
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char *p_mempos;
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int error_code;
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};
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/* LDAC Handle */
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typedef struct _handle_ldac_struct {
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int nlnn;
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int nbands;
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int grad_mode;
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int grad_qu_l;
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int grad_qu_h;
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int grad_os_l;
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int grad_os_h;
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int abc_status;
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int error_code;
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SFINFO sfinfo;
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} HANDLE_LDAC_STRUCT;
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/* Huffman Codeword */
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typedef struct {
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unsigned char word;
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unsigned char len;
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} HC;
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/* Huffman Encoding Structure */
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typedef struct _hcenc_ldac HCENC;
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struct _hcenc_ldac {
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const HC *p_tbl;
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unsigned char ncodes;
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unsigned char wl;
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unsigned char mask;
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};
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/*******************************************************************************
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Function Declarations
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*******************************************************************************/
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#define npow2_ldac(n) (1 << (n))
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#define min_ldac(a, b) (((a)<(b)) ? (a) : (b))
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#define max_ldac(a, b) (((a)>(b)) ? (a) : (b))
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/* Get Huffman Codeword Property */
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#define hc_len_ldac(p) ((p)->len)
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#define hc_word_ldac(p) ((p)->word)
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/* Convert a Signed Number with nbits to a Signed Integer */
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#define bs_to_int_ldac(bs, nbits) (((bs)&(0x1<<((nbits)-1))) ? ((bs)|((~0x0)<<(nbits))) : bs)
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#ifdef _32BIT_FIXED_POINT
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#include "fixp_ldac.h"
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#endif /* _32BIT_FIXED_POINT */
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#include "proto_ldac.h"
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#endif /* _LDAC_H */
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