1/******************************************************************************
2 *
3 *  Copyright (C) 1999-2012 Broadcom Corporation
4 *
5 *  Licensed under the Apache License, Version 2.0 (the "License");
6 *  you may not use this file except in compliance with the License.
7 *  You may obtain a copy of the License at:
8 *
9 *  http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 *
17 ******************************************************************************/
18
19/******************************************************************************
20 *
21 *  This file contains constants and structures used by Encoder.
22 *
23 ******************************************************************************/
24
25#ifndef SBC_ENCODER_H
26#define SBC_ENCODER_H
27
28#define ENCODER_VERSION "0025"
29
30#ifdef BUILDCFG
31    #include "bt_target.h"
32#endif
33
34/*DEFINES*/
35#ifndef FALSE
36#define FALSE 0
37#endif
38
39#ifndef TRUE
40#define TRUE (!FALSE)
41#endif
42
43#define SBC_MAX_NUM_OF_SUBBANDS 8
44#define SBC_MAX_NUM_OF_CHANNELS 2
45#define SBC_MAX_NUM_OF_BLOCKS   16
46
47#define SBC_LOUDNESS    0
48#define SBC_SNR 1
49
50#define SUB_BANDS_8 8
51#define SUB_BANDS_4 4
52
53#define SBC_sf16000 0
54#define SBC_sf32000 1
55#define SBC_sf44100 2
56#define SBC_sf48000 3
57
58#define SBC_MONO    0
59#define SBC_DUAL    1
60#define SBC_STEREO  2
61#define SBC_JOINT_STEREO    3
62
63#define SBC_BLOCK_0 4
64#define SBC_BLOCK_1 8
65#define SBC_BLOCK_2 12
66#define SBC_BLOCK_3 16
67
68#define SBC_NULL    0
69
70#ifndef SBC_MAX_NUM_FRAME
71#define SBC_MAX_NUM_FRAME 1
72#endif
73
74#ifndef SBC_DSP_OPT
75#define SBC_DSP_OPT FALSE
76#endif
77
78/* Set SBC_USE_ARM_PRAGMA to TRUE to use "#pragma arm section zidata" */
79#ifndef SBC_USE_ARM_PRAGMA
80#define SBC_USE_ARM_PRAGMA FALSE
81#endif
82
83/* Set SBC_ARM_ASM_OPT to TRUE in case the target is an ARM */
84/* this will replace all the 32 and 64 bit mult by in line assembly code */
85#ifndef SBC_ARM_ASM_OPT
86#define SBC_ARM_ASM_OPT FALSE
87#endif
88
89/* green hill compiler option -> Used to distinguish the syntax for inline assembly code*/
90#ifndef SBC_GHS_COMPILER
91#define SBC_GHS_COMPILER FALSE
92#endif
93
94/* ARM compiler option -> Used to distinguish the syntax for inline assembly code */
95#ifndef SBC_ARM_COMPILER
96#define SBC_ARM_COMPILER TRUE
97#endif
98
99/* Set SBC_IPAQ_OPT to TRUE in case the target is an ARM */
100/* 32 and 64 bit mult will be performed using SINT64 ( usualy __int64 ) cast that usualy give optimal performance if supported */
101#ifndef SBC_IPAQ_OPT
102#define SBC_IPAQ_OPT TRUE
103#endif
104
105/* Debug only: set SBC_IS_64_MULT_IN_WINDOW_ACCU to TRUE to use 64 bit multiplication in the windowing */
106/* -> not recomended, more MIPS for the same restitution.  */
107#ifndef SBC_IS_64_MULT_IN_WINDOW_ACCU
108#define SBC_IS_64_MULT_IN_WINDOW_ACCU  FALSE
109#endif /*SBC_IS_64_MULT_IN_WINDOW_ACCU */
110
111/* Set SBC_IS_64_MULT_IN_IDCT to TRUE to use 64 bits multiplication in the DCT of Matrixing */
112/* -> more MIPS required for a better audio quality. comparasion with the SIG utilities shows a division by 10 of the RMS */
113/* CAUTION: It only apply in the if SBC_FAST_DCT is set to TRUE */
114#ifndef SBC_IS_64_MULT_IN_IDCT
115#define SBC_IS_64_MULT_IN_IDCT  FALSE
116#endif /*SBC_IS_64_MULT_IN_IDCT */
117
118/* set SBC_IS_64_MULT_IN_QUANTIZER to TRUE to use 64 bits multiplication in the quantizer */
119/* setting this flag to FALSE add whistling noise at 5.5 and 11 KHz usualy not perceptible by human's hears. */
120#ifndef SBC_IS_64_MULT_IN_QUANTIZER
121#define SBC_IS_64_MULT_IN_QUANTIZER  TRUE
122#endif /*SBC_IS_64_MULT_IN_IDCT */
123
124/* Debug only: set this flag to FALSE to disable fast DCT algorithm */
125#ifndef SBC_FAST_DCT
126#define SBC_FAST_DCT  TRUE
127#endif /*SBC_FAST_DCT */
128
129/* In case we do not use joint stereo mode the flag save some RAM and ROM in case it is set to FALSE */
130#ifndef SBC_JOINT_STE_INCLUDED
131#define SBC_JOINT_STE_INCLUDED TRUE
132#endif
133
134/* TRUE -> application should provide PCM buffer, FALSE PCM buffer reside in SBC_ENC_PARAMS */
135#ifndef SBC_NO_PCM_CPY_OPTION
136#define SBC_NO_PCM_CPY_OPTION FALSE
137#endif
138
139#define MINIMUM_ENC_VX_BUFFER_SIZE (8*10*2)
140#ifndef ENC_VX_BUFFER_SIZE
141#define ENC_VX_BUFFER_SIZE (MINIMUM_ENC_VX_BUFFER_SIZE + 64)
142/*#define ENC_VX_BUFFER_SIZE MINIMUM_ENC_VX_BUFFER_SIZE + 1024*/
143#endif
144
145#ifndef SBC_FOR_EMBEDDED_LINUX
146#define SBC_FOR_EMBEDDED_LINUX FALSE
147#endif
148
149/*constants used for index calculation*/
150#define SBC_BLK (SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS)
151
152#include "sbc_types.h"
153
154typedef struct SBC_ENC_PARAMS_TAG
155{
156    SINT16 s16SamplingFreq;                         /* 16k, 32k, 44.1k or 48k*/
157    SINT16 s16ChannelMode;                          /* mono, dual, streo or joint streo*/
158    SINT16 s16NumOfSubBands;                        /* 4 or 8 */
159    SINT16 s16NumOfChannels;
160    SINT16 s16NumOfBlocks;                          /* 4, 8, 12 or 16*/
161    SINT16 s16AllocationMethod;                     /* loudness or SNR*/
162    SINT16 s16BitPool;                              /* 16*numOfSb for mono & dual;
163                                                       32*numOfSb for stereo & joint stereo */
164    UINT16 u16BitRate;
165    UINT8   u8NumPacketToEncode;                    /* number of sbc frame to encode. Default is 1 */
166#if (SBC_JOINT_STE_INCLUDED == TRUE)
167    SINT16 as16Join[SBC_MAX_NUM_OF_SUBBANDS];       /*1 if JS, 0 otherwise*/
168#endif
169
170    SINT16 s16MaxBitNeed;
171    SINT16 as16ScaleFactor[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS];
172
173    SINT16 *ps16NextPcmBuffer;
174#if (SBC_NO_PCM_CPY_OPTION == TRUE)
175    SINT16 *ps16PcmBuffer;
176#else
177    SINT16 as16PcmBuffer[SBC_MAX_NUM_FRAME*SBC_MAX_NUM_OF_BLOCKS * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS];
178#endif
179
180    SINT16  s16ScartchMemForBitAlloc[16];
181
182    SINT32  s32SbBuffer[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * SBC_MAX_NUM_OF_BLOCKS];
183
184    SINT16 as16Bits[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS];
185
186    UINT8  *pu8Packet;
187    UINT8  *pu8NextPacket;
188    UINT16 FrameHeader;
189    UINT16 u16PacketLength;
190
191}SBC_ENC_PARAMS;
192
193#ifdef __cplusplus
194extern "C"
195{
196#endif
197SBC_API extern void SBC_Encoder(SBC_ENC_PARAMS *strEncParams);
198SBC_API extern void SBC_Encoder_Init(SBC_ENC_PARAMS *strEncParams);
199#ifdef __cplusplus
200}
201#endif
202#endif
203