/****************************************************************************** * * 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" #ifdef BUILDCFG #include "bt_target.h" #endif /*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 SINT64 ( 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 add 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 /* TRUE -> application should provide PCM buffer, FALSE PCM buffer reside in SBC_ENC_PARAMS */ #ifndef SBC_NO_PCM_CPY_OPTION #define SBC_NO_PCM_CPY_OPTION FALSE #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) #include "sbc_types.h" typedef struct SBC_ENC_PARAMS_TAG { SINT16 s16SamplingFreq; /* 16k, 32k, 44.1k or 48k*/ SINT16 s16ChannelMode; /* mono, dual, streo or joint streo*/ SINT16 s16NumOfSubBands; /* 4 or 8 */ SINT16 s16NumOfChannels; SINT16 s16NumOfBlocks; /* 4, 8, 12 or 16*/ SINT16 s16AllocationMethod; /* loudness or SNR*/ SINT16 s16BitPool; /* 16*numOfSb for mono & dual; 32*numOfSb for stereo & joint stereo */ UINT16 u16BitRate; UINT8 u8NumPacketToEncode; /* number of sbc frame to encode. Default is 1 */ #if (SBC_JOINT_STE_INCLUDED == TRUE) SINT16 as16Join[SBC_MAX_NUM_OF_SUBBANDS]; /*1 if JS, 0 otherwise*/ #endif SINT16 s16MaxBitNeed; SINT16 as16ScaleFactor[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS]; SINT16 *ps16NextPcmBuffer; #if (SBC_NO_PCM_CPY_OPTION == TRUE) SINT16 *ps16PcmBuffer; #else SINT16 as16PcmBuffer[SBC_MAX_NUM_FRAME*SBC_MAX_NUM_OF_BLOCKS * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS]; #endif SINT16 s16ScartchMemForBitAlloc[16]; SINT32 s32SbBuffer[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * SBC_MAX_NUM_OF_BLOCKS]; SINT16 as16Bits[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS]; UINT8 *pu8Packet; UINT8 *pu8NextPacket; UINT16 FrameHeader; UINT16 u16PacketLength; }SBC_ENC_PARAMS; #ifdef __cplusplus extern "C" { #endif SBC_API extern void SBC_Encoder(SBC_ENC_PARAMS *strEncParams); SBC_API extern void SBC_Encoder_Init(SBC_ENC_PARAMS *strEncParams); #ifdef __cplusplus } #endif #endif