You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
208 lines
5.9 KiB
208 lines
5.9 KiB
/****************************************************************************** |
|
* |
|
* Copyright (C) 1999-2012 Broadcom Corporation |
|
* |
|
* Licensed under the Apache License, Version 2.0 (the "License"); |
|
* you may not use this file except in compliance with the License. |
|
* You may obtain a copy of the License at: |
|
* |
|
* http://www.apache.org/licenses/LICENSE-2.0 |
|
* |
|
* Unless required by applicable law or agreed to in writing, software |
|
* distributed under the License is distributed on an "AS IS" BASIS, |
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
* See the License for the specific language governing permissions and |
|
* limitations under the License. |
|
* |
|
******************************************************************************/ |
|
|
|
/****************************************************************************** |
|
* |
|
* This file contains constants and structures used by Encoder. |
|
* |
|
******************************************************************************/ |
|
|
|
#ifndef SBC_ENCODER_H |
|
#define SBC_ENCODER_H |
|
|
|
#define ENCODER_VERSION "0025" |
|
|
|
#include "bt_target.h" |
|
|
|
/*DEFINES*/ |
|
#ifndef FALSE |
|
#define FALSE 0 |
|
#endif |
|
|
|
#ifndef TRUE |
|
#define TRUE (!FALSE) |
|
#endif |
|
|
|
#define SBC_MAX_NUM_OF_SUBBANDS 8 |
|
#define SBC_MAX_NUM_OF_CHANNELS 2 |
|
#define SBC_MAX_NUM_OF_BLOCKS 16 |
|
|
|
#define SBC_LOUDNESS 0 |
|
#define SBC_SNR 1 |
|
|
|
#define SUB_BANDS_8 8 |
|
#define SUB_BANDS_4 4 |
|
|
|
#define SBC_sf16000 0 |
|
#define SBC_sf32000 1 |
|
#define SBC_sf44100 2 |
|
#define SBC_sf48000 3 |
|
|
|
#define SBC_MONO 0 |
|
#define SBC_DUAL 1 |
|
#define SBC_STEREO 2 |
|
#define SBC_JOINT_STEREO 3 |
|
|
|
#define SBC_BLOCK_0 4 |
|
#define SBC_BLOCK_1 8 |
|
#define SBC_BLOCK_2 12 |
|
#define SBC_BLOCK_3 16 |
|
|
|
#define SBC_NULL 0 |
|
|
|
#ifndef SBC_MAX_NUM_FRAME |
|
#define SBC_MAX_NUM_FRAME 1 |
|
#endif |
|
|
|
#ifndef SBC_DSP_OPT |
|
#define SBC_DSP_OPT FALSE |
|
#endif |
|
|
|
/* Set SBC_USE_ARM_PRAGMA to TRUE to use "#pragma arm section zidata" */ |
|
#ifndef SBC_USE_ARM_PRAGMA |
|
#define SBC_USE_ARM_PRAGMA FALSE |
|
#endif |
|
|
|
/* Set SBC_ARM_ASM_OPT to TRUE in case the target is an ARM */ |
|
/* this will replace all the 32 and 64 bit mult by in line assembly code */ |
|
#ifndef SBC_ARM_ASM_OPT |
|
#define SBC_ARM_ASM_OPT FALSE |
|
#endif |
|
|
|
/* green hill compiler option -> Used to distinguish the syntax for inline |
|
* assembly code |
|
*/ |
|
#ifndef SBC_GHS_COMPILER |
|
#define SBC_GHS_COMPILER FALSE |
|
#endif |
|
|
|
/* ARM compiler option -> Used to distinguish the syntax for inline assembly |
|
* code */ |
|
#ifndef SBC_ARM_COMPILER |
|
#define SBC_ARM_COMPILER TRUE |
|
#endif |
|
|
|
/* Set SBC_IPAQ_OPT to TRUE in case the target is an ARM */ |
|
/* 32 and 64 bit mult will be performed using int64_t ( usualy __int64 ) cast |
|
* that usualy give optimal performance if supported |
|
*/ |
|
#ifndef SBC_IPAQ_OPT |
|
#define SBC_IPAQ_OPT TRUE |
|
#endif |
|
|
|
/* Debug only: set SBC_IS_64_MULT_IN_WINDOW_ACCU to TRUE to use 64 bit |
|
* multiplication in the windowing |
|
*/ |
|
/* -> not recomended, more MIPS for the same restitution. */ |
|
#ifndef SBC_IS_64_MULT_IN_WINDOW_ACCU |
|
#define SBC_IS_64_MULT_IN_WINDOW_ACCU FALSE |
|
#endif /*SBC_IS_64_MULT_IN_WINDOW_ACCU */ |
|
|
|
/* Set SBC_IS_64_MULT_IN_IDCT to TRUE to use 64 bits multiplication in the DCT |
|
* of Matrixing |
|
*/ |
|
/* -> more MIPS required for a better audio quality. comparasion with the SIG |
|
* utilities shows a division by 10 of the RMS |
|
*/ |
|
/* CAUTION: It only apply in the if SBC_FAST_DCT is set to TRUE */ |
|
#ifndef SBC_IS_64_MULT_IN_IDCT |
|
#define SBC_IS_64_MULT_IN_IDCT FALSE |
|
#endif /*SBC_IS_64_MULT_IN_IDCT */ |
|
|
|
/* set SBC_IS_64_MULT_IN_QUANTIZER to TRUE to use 64 bits multiplication in the |
|
* quantizer |
|
*/ |
|
/* setting this flag to FALSE adds a whistling noise at 5.5 and 11 KHz usualy |
|
* not perceptible by human's hears. */ |
|
#ifndef SBC_IS_64_MULT_IN_QUANTIZER |
|
#define SBC_IS_64_MULT_IN_QUANTIZER TRUE |
|
#endif /*SBC_IS_64_MULT_IN_IDCT */ |
|
|
|
/* Debug only: set this flag to FALSE to disable fast DCT algorithm */ |
|
#ifndef SBC_FAST_DCT |
|
#define SBC_FAST_DCT TRUE |
|
#endif /*SBC_FAST_DCT */ |
|
|
|
/* In case we do not use joint stereo mode the flag save some RAM and ROM in |
|
* case it is set to FALSE */ |
|
#ifndef SBC_JOINT_STE_INCLUDED |
|
#define SBC_JOINT_STE_INCLUDED TRUE |
|
#endif |
|
|
|
#define MINIMUM_ENC_VX_BUFFER_SIZE (8 * 10 * 2) |
|
#ifndef ENC_VX_BUFFER_SIZE |
|
#define ENC_VX_BUFFER_SIZE (MINIMUM_ENC_VX_BUFFER_SIZE + 64) |
|
/*#define ENC_VX_BUFFER_SIZE MINIMUM_ENC_VX_BUFFER_SIZE + 1024*/ |
|
#endif |
|
|
|
#ifndef SBC_FOR_EMBEDDED_LINUX |
|
#define SBC_FOR_EMBEDDED_LINUX FALSE |
|
#endif |
|
|
|
/*constants used for index calculation*/ |
|
#define SBC_BLK (SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS) |
|
|
|
#define SBC_MAX_PCM_BUFFER_SIZE \ |
|
(SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS * SBC_MAX_NUM_OF_CHANNELS * \ |
|
SBC_MAX_NUM_OF_SUBBANDS) |
|
|
|
#include "sbc_types.h" |
|
|
|
typedef struct SBC_ENC_PARAMS_TAG { |
|
int16_t s16SamplingFreq; /* 16k, 32k, 44.1k or 48k*/ |
|
int16_t s16ChannelMode; /* mono, dual, streo or joint streo*/ |
|
int16_t s16NumOfSubBands; /* 4 or 8 */ |
|
int16_t s16NumOfChannels; |
|
int16_t s16NumOfBlocks; /* 4, 8, 12 or 16*/ |
|
int16_t s16AllocationMethod; /* loudness or SNR*/ |
|
int16_t s16BitPool; /* 16*numOfSb for mono & dual; |
|
32*numOfSb for stereo & joint stereo */ |
|
uint16_t u16BitRate; |
|
#if (SBC_JOINT_STE_INCLUDED == TRUE) |
|
int16_t as16Join[SBC_MAX_NUM_OF_SUBBANDS]; /*1 if JS, 0 otherwise*/ |
|
#endif |
|
|
|
int16_t s16MaxBitNeed; |
|
int16_t as16ScaleFactor[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS]; |
|
|
|
int16_t s16ScartchMemForBitAlloc[16]; |
|
|
|
int32_t s32SbBuffer[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * |
|
SBC_MAX_NUM_OF_BLOCKS]; |
|
|
|
int16_t as16Bits[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS]; |
|
|
|
uint16_t FrameHeader; |
|
|
|
} SBC_ENC_PARAMS; |
|
|
|
#ifdef __cplusplus |
|
extern "C" { |
|
#endif |
|
|
|
/* Encode the frame using SBC. The output is written into |output|. Return |
|
* number of bytes written. */ |
|
extern uint32_t SBC_Encode(SBC_ENC_PARAMS* strEncParams, int16_t* input, |
|
uint8_t* output); |
|
extern void SBC_Encoder_Init(SBC_ENC_PARAMS* strEncParams); |
|
|
|
#ifdef __cplusplus |
|
} |
|
#endif |
|
|
|
#endif /* SBC_ENCODER_H */
|
|
|