acoustic_sl.h

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/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __ACOUSTIC_SL_H
#define __ACOUSTIC_SL_H

#include "stdint.h"

/* Includes ------------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported define -----------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */

#define ACOUSTIC_SL_ALGORITHM_XCORR                 ((uint32_t)0x00000001)
#define ACOUSTIC_SL_ALGORITHM_GCCP                  ((uint32_t)0x00000002)
#define ACOUSTIC_SL_ALGORITHM_BMPH                  ((uint32_t)0x00000004)

#define ACOUSTIC_SL_ALGORITHM_ERROR                 ((uint32_t)0x00000001)
#define ACOUSTIC_SL_PTR_CHANNELS_ERROR              ((uint32_t)0x00000002)
#define ACOUSTIC_SL_CHANNEL_NUMBER_ERROR            ((uint32_t)0x00000004)
#define ACOUSTIC_SL_SAMPLING_FREQ_ERROR             ((uint32_t)0x00000008)
#define ACOUSTIC_SL_RESOLUTION_ERROR                ((uint32_t)0x00000010)
#define ACOUSTIC_SL_THRESHOLD_ERROR                 ((uint32_t)0x00000020)
#define ACOUSTIC_SL_DISTANCE_ERROR                  ((uint32_t)0x00000040)
#define ACOUSTIC_SL_NUM_OF_SAMPLES_ERROR            ((uint32_t)0x00000080)
#define ACOUSTIC_SL_PROCESSING_ERROR                ((uint32_t)0x00000100)

#ifndef ACOUSTIC_LOCK_ERROR
#define ACOUSTIC_LOCK_ERROR                         ((uint32_t)0x10000000)
#endif 

#define ACOUSTIC_SL_NO_AUDIO_DETECTED              -100  

typedef struct
{
  uint32_t algorithm;                           
  uint32_t sampling_frequency;                  
  uint32_t channel_number;                      
  uint8_t ptr_M1_channels;                      
  uint8_t ptr_M2_channels;                      
  uint8_t ptr_M3_channels;                      
  uint8_t ptr_M4_channels;                      
  uint16_t M12_distance;                        
  uint16_t M34_distance;                        
  uint32_t internal_memory_size;                
  uint32_t * pInternalMemory;                   
  int16_t samples_to_process;                   
} AcousticSL_Handler_t;

typedef struct
{
  uint16_t threshold;                           
  uint32_t resolution;                          
} AcousticSL_Config_t;


uint32_t AcousticSL_getMemorySize(AcousticSL_Handler_t * pHandler);

uint32_t AcousticSL_Init(AcousticSL_Handler_t * pHandler);

uint32_t AcousticSL_Data_Input(void *pM1, void *pM2, void *pM3, void *pM4, AcousticSL_Handler_t * pHandler);

uint32_t AcousticSL_Process(int32_t * Estimated_Angle, AcousticSL_Handler_t * pHandler);

uint32_t AcousticSL_setConfig(AcousticSL_Handler_t * pHandler, AcousticSL_Config_t * pConfig);

uint32_t AcousticSL_getConfig(AcousticSL_Handler_t * pHandler, AcousticSL_Config_t * pConfig);

uint32_t AcousticSL_GetLibVersion(char *version);


#endif /* __ACOUSTIC_SL_H */

/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/