dct.h

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#ifndef __DCT_H
#define __DCT_H
 
#ifdef __cplusplus
 extern "C" {
#endif
 
#include "arm_math.h"
 
typedef enum
{
  DCT_TYPE_I,          
  DCT_TYPE_II,         
  DCT_TYPE_II_ORTHO,   
  DCT_TYPE_II_SCALED,  
  DCT_TYPE_III,        
  DCT_TYPE_III_ORTHO,  
} DCT_TypeTypeDef;
 
typedef struct
{
  uint32_t NumFilters;     
  uint32_t NumInputs;      
  DCT_TypeTypeDef Type;    
  uint32_t RemoveDCTZero;  
  float32_t *pDCTCoefs;    
} DCT_InstanceTypeDef;
 
int32_t DCT_Init(DCT_InstanceTypeDef *S);
void DCT(DCT_InstanceTypeDef *S, float32_t *pIn, float32_t *pOut);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __DCT_H */
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/