diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Reverb/src/LVREV_Private.h')
-rw-r--r-- | media/libeffects/lvm/lib/Reverb/src/LVREV_Private.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/media/libeffects/lvm/lib/Reverb/src/LVREV_Private.h b/media/libeffects/lvm/lib/Reverb/src/LVREV_Private.h deleted file mode 100644 index fbfa437..0000000 --- a/media/libeffects/lvm/lib/Reverb/src/LVREV_Private.h +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (C) 2004-2010 NXP Software - * Copyright (C) 2010 The Android Open Source Project - * - * 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. - */ - -#ifndef __LVREV_PRIVATE_H__ -#define __LVREV_PRIVATE_H__ - -#ifdef __cplusplus -extern "C" { -#endif - - -/****************************************************************************************/ -/* */ -/* Includes */ -/* */ -/****************************************************************************************/ -#include "LVREV.h" -#include "LVREV_Tables.h" -#include "BIQUAD.h" -#include "Filter.h" -#include "VectorArithmetic.h" -#include "Mixer.h" -#include "LVM_Macros.h" - - -/****************************************************************************************/ -/* */ -/* Defines */ -/* */ -/****************************************************************************************/ -/* General */ -#define ONE_OVER_SQRT_TWO 23170 /* 1/sqrt(2) * 2^15 */ -#define LVREV_B_8_on_1000 17179869 /* 0.8 * 2^31 */ -#define LVREV_HEADROOM 8192 /* -12dB * 2^15 */ -#define LVREV_2_9_INQ29 1583769190L /* 2.9 in Q29 format */ -#define LVREV_MIN3DB 0x5A82 /* -3dB in Q15 format */ - -/* Intenal constants */ -#define LVREV_LP_Poly_Order 4 -#define LVREV_LP_Poly_Shift 5 -#define LVREV_T_3_Power_0_on_4 32768 -#define LVREV_T_3_Power_1_on_4 43125 -#define LVREV_T_3_Power_2_on_4 56755 -#define LVREV_T_3_Power_3_on_4 74694 -#define LVREV_T60_SCALE 306774 /*(32767/7000)<<16 */ -#define LVREV_T_3_Power_minus0_on_4 32767 /* 3^(-0/4) * 2^15 */ -#define LVREV_T_3_Power_minus1_on_4 24898 /* 3^(-1/4) * 2^15 */ -#define LVREV_T_3_Power_minus2_on_4 18919 /* 3^(-2/4) * 2^15 */ -#define LVREV_T_3_Power_minus3_on_4 14375 /* 3^(-3/4) * 2^15 */ -#define LVREV_MAX_T3_DELAY 2527 /* ((48000 * 120 * LVREV_T_3_Power_minus3_on_4) >> 15) / 1000 */ -#define LVREV_MAX_T2_DELAY 3326 /* ((48000 * 120 * LVREV_T_3_Power_minus2_on_4) >> 15) / 1000 */ -#define LVREV_MAX_T1_DELAY 4377 /* ((48000 * 120 * LVREV_T_3_Power_minus1_on_4) >> 15) / 1000 */ -#define LVREV_MAX_T0_DELAY 5760 /* ((48000 * 120 * LVREV_T_3_Power_minus0_on_4) >> 15) / 1000 */ -#define LVREV_MAX_AP3_DELAY 1685 /* ((48000 * 120 * LVREV_T_3_Power_minus3_on_4) >> 15) / 1500 */ -#define LVREV_MAX_AP2_DELAY 2218 /* ((48000 * 120 * LVREV_T_3_Power_minus2_on_4) >> 15) / 1500 */ -#define LVREV_MAX_AP1_DELAY 2918 /* ((48000 * 120 * LVREV_T_3_Power_minus1_on_4) >> 15) / 1500 */ -#define LVREV_MAX_AP0_DELAY 3840 /* ((48000 * 120 * LVREV_T_3_Power_minus0_on_4) >> 15) / 1500 */ -#define LVREV_BYPASSMIXER_TC 1000 /* Bypass mixer time constant*/ -#define LVREV_ALLPASS_TC 1000 /* All-pass filter time constant */ -#define LVREV_ALLPASS_TAP_TC 10000 /* All-pass filter dely tap change */ -#define LVREV_FEEDBACKMIXER_TC 100 /* Feedback mixer time constant*/ -#define LVREV_OUTPUTGAIN_SHIFT 5 /* Bits shift for output gain correction */ - -/* Parameter limits */ -#define LVREV_NUM_FS 9 /* Number of supported sample rates */ -#define LVREV_MAXBLKSIZE_LIMIT 64 /* Maximum block size low limit */ -#define LVREV_MAX_LEVEL 100 /* Maximum level, 100% */ -#define LVREV_MIN_LPF_CORNER 50 /* Low pass filter limits */ -#define LVREV_MAX_LPF_CORNER 23999 -#define LVREV_MIN_HPF_CORNER 20 /* High pass filrer limits */ -#define LVREV_MAX_HPF_CORNER 1000 -#define LVREV_MAX_T60 7000 /* Maximum T60 time in ms */ -#define LVREV_MAX_DENSITY 100 /* Maximum density, 100% */ -#define LVREV_MAX_DAMPING 100 /* Maximum damping, 100% */ -#define LVREV_MAX_ROOMSIZE 100 /* Maximum room size, 100% */ - - - -/****************************************************************************************/ -/* */ -/* Structures */ -/* */ -/****************************************************************************************/ -/* Fast data structure */ -typedef struct -{ - - Biquad_1I_Order1_Taps_t HPTaps; /* High pass filter taps */ - Biquad_1I_Order1_Taps_t LPTaps; /* Low pass filter taps */ - Biquad_1I_Order1_Taps_t RevLPTaps[4]; /* Reverb low pass filters taps */ - -} LVREV_FastData_st; - - -/* Fast coefficient structure */ -typedef struct -{ - - Biquad_Instance_t HPCoefs; /* High pass filter coefficients */ - Biquad_Instance_t LPCoefs; /* Low pass filter coefficients */ - Biquad_Instance_t RevLPCoefs[4]; /* Reverb low pass filters coefficients */ - -} LVREV_FastCoef_st; - - -/* Instance parameter structure */ -typedef struct -{ - /* General */ - LVREV_InstanceParams_st InstanceParams; /* Initialisation time instance parameters */ - LVREV_MemoryTable_st MemoryTable; /* Memory table */ - LVREV_ControlParams_st CurrentParams; /* Parameters being used */ - LVREV_ControlParams_st NewParams; /* New parameters from the calling application */ - LVM_CHAR bControlPending; /* Flag to indicate new parameters are available */ - LVM_CHAR bFirstControl; /* Flag to indicate that the control function is called for the first time */ - LVM_CHAR bDisableReverb; /* Flag to indicate that the mix level is 0% and the reverb can be disabled */ - LVM_INT32 RoomSizeInms; /* Room size in msec */ - LVM_INT32 MaxBlkLen; /* Maximum block size for internal processing */ - - /* Aligned memory pointers */ - LVREV_FastData_st *pFastData; /* Fast data memory base address */ - LVREV_FastCoef_st *pFastCoef; /* Fast coefficient memory base address */ - LVM_INT32 *pScratchDelayLine[4]; /* Delay line scratch memory */ - LVM_INT32 *pScratch; /* Multi ussge scratch */ - LVM_INT32 *pInputSave; /* Reverb block input save for dry/wet mixing*/ - - /* Feedback matrix */ - Mix_1St_Cll_t FeedbackMixer[4]; /* Mixer for Pop and Click Supression caused by feedback Gain */ - - /* All-Pass Filter */ - LVM_INT32 T[4]; /* Maximum delay size of buffer */ - LVM_INT32 *pDelay_T[4]; /* Pointer to delay buffers */ - LVM_INT32 Delay_AP[4]; /* Offset to AP delay buffer start */ - LVM_INT16 AB_Selection; /* Smooth from tap A to B when 1 otherwise B to A */ - LVM_INT32 A_DelaySize[4]; /* A delay length in samples */ - LVM_INT32 B_DelaySize[4]; /* B delay length in samples */ - LVM_INT32 *pOffsetA[4]; /* Offset for the A delay tap */ - LVM_INT32 *pOffsetB[4]; /* Offset for the B delay tap */ - Mix_2St_Cll_t Mixer_APTaps[4]; /* Smoothed AP delay mixer */ - Mix_1St_Cll_t Mixer_SGFeedback[4]; /* Smoothed SAfeedback gain */ - Mix_1St_Cll_t Mixer_SGFeedforward[4]; /* Smoothed AP feedforward gain */ - - /* Output gain */ - Mix_2St_Cll_t BypassMixer; /* Dry/wet mixer */ - LVM_INT16 Gain; /* Gain applied to output to maintain average signal power */ - Mix_1St_Cll_t GainMixer; /* Gain smoothing */ - -} LVREV_Instance_st; - - -/****************************************************************************************/ -/* */ -/* Function prototypes */ -/* */ -/****************************************************************************************/ - -LVREV_ReturnStatus_en LVREV_ApplyNewSettings(LVREV_Instance_st *pPrivate); - -void ReverbBlock(LVM_INT32 *pInput, - LVM_INT32 *pOutput, - LVREV_Instance_st *pPrivate, - LVM_UINT16 NumSamples); - -LVM_INT32 BypassMixer_Callback(void *pCallbackData, - void *pGeneralPurpose, - LVM_INT16 GeneralPurpose ); - - -#ifdef __cplusplus -} -#endif - -#endif /** __LVREV_PRIVATE_H__ **/ - -/* End of file */ |