ref: b8a30f9ca3776b71adf3a8b344c2351e40256b15
dir: /silk/silk_resampler_structs.h/
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#ifndef SILK_RESAMPLER_STRUCTS_H
#define SILK_RESAMPLER_STRUCTS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Flag to enable support for input/output sampling rates above 48 kHz. Turn off for embedded devices */
#define RESAMPLER_SUPPORT_ABOVE_48KHZ 1
#define SILK_RESAMPLER_MAX_FIR_ORDER 16
#define SILK_RESAMPLER_MAX_IIR_ORDER 6
typedef struct _silk_resampler_state_struct{
opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
opus_int32 sFIR[ SILK_RESAMPLER_MAX_FIR_ORDER ];
opus_int32 sDown2[ 2 ];
void (*resampler_function)( void *, opus_int16 *, const opus_int16 *, opus_int32 );
void (*up2_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
opus_int32 batchSize;
opus_int32 invRatio_Q16;
opus_int32 FIR_Fracs;
opus_int32 input2x;
const opus_int16 *Coefs;
#if RESAMPLER_SUPPORT_ABOVE_48KHZ
opus_int32 sDownPre[ 2 ];
opus_int32 sUpPost[ 2 ];
void (*down_pre_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
void (*up_post_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
opus_int32 batchSizePrePost;
opus_int32 ratio_Q16;
opus_int32 nPreDownsamplers;
opus_int32 nPostUpsamplers;
#endif
opus_int32 magic_number;
} silk_resampler_state_struct;
#ifdef __cplusplus
}
#endif
#endif // SILK_RESAMPLER_STRUCTS_H