audio_resampler.h File Reference

#include <stdint.h>
#include <stddef.h>
#include <boolean.h>
#include <retro_common_api.h>

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Classes
struct	resampler_data
struct	resampler_config
struct	retro_resampler
struct	audio_frame_float

Macros
#define	RESAMPLER_SIMD_SSE   (1 << 0)
#define	RESAMPLER_SIMD_SSE2   (1 << 1)
#define	RESAMPLER_SIMD_VMX   (1 << 2)
#define	RESAMPLER_SIMD_VMX128   (1 << 3)
#define	RESAMPLER_SIMD_AVX   (1 << 4)
#define	RESAMPLER_SIMD_NEON   (1 << 5)
#define	RESAMPLER_SIMD_SSE3   (1 << 6)
#define	RESAMPLER_SIMD_SSSE3   (1 << 7)
#define	RESAMPLER_SIMD_MMX   (1 << 8)
#define	RESAMPLER_SIMD_MMXEXT   (1 << 9)
#define	RESAMPLER_SIMD_SSE4   (1 << 10)
#define	RESAMPLER_SIMD_SSE42   (1 << 11)
#define	RESAMPLER_SIMD_AVX2   (1 << 12)
#define	RESAMPLER_SIMD_VFPU   (1 << 13)
#define	RESAMPLER_SIMD_PS   (1 << 14)
#define	RESAMPLER_API_VERSION   1

Typedefs
typedef unsigned	resampler_simd_mask_t
typedef int(*	resampler_config_get_float_t) (void *userdata, const char *key, float *value, float default_value)
typedef int(*	resampler_config_get_int_t) (void *userdata, const char *key, int *value, int default_value)
typedef int(*	resampler_config_get_float_array_t) (void *userdata, const char *key, float **values, unsigned *out_num_values, const float *default_values, unsigned num_default_values)
typedef int(*	resampler_config_get_int_array_t) (void *userdata, const char *key, int **values, unsigned *out_num_values, const int *default_values, unsigned num_default_values)
typedef int(*	resampler_config_get_string_t) (void *userdata, const char *key, char **output, const char *default_output)
typedef void(*	resampler_config_free_t) (void *ptr)
typedef void *(*	resampler_init_t) (const struct resampler_config *config, double bandwidth_mod, enum resampler_quality quality, resampler_simd_mask_t mask)
typedef void(*	resampler_free_t) (void *data)
typedef void(*	resampler_process_t) (void *_data, struct resampler_data *data)
typedef struct retro_resampler	retro_resampler_t
typedef struct audio_frame_float	audio_frame_float_t

Enumerations
enum	resampler_quality {   RESAMPLER_QUALITY_DONTCARE = 0, RESAMPLER_QUALITY_LOWEST, RESAMPLER_QUALITY_LOWER, RESAMPLER_QUALITY_NORMAL,   RESAMPLER_QUALITY_HIGHER, RESAMPLER_QUALITY_HIGHEST }

Functions
const void *	audio_resampler_driver_find_handle (int index)
const char *	audio_resampler_driver_find_ident (int index)
bool	retro_resampler_realloc (void **re, const retro_resampler_t **backend, const char *ident, enum resampler_quality quality, double bw_ratio)

Variables
retro_resampler_t	sinc_resampler
retro_resampler_t	nearest_resampler
retro_resampler_t	null_resampler

Macro Definition Documentation

RESAMPLER_API_VERSION

#define RESAMPLER_API_VERSION   1

RESAMPLER_SIMD_AVX

#define RESAMPLER_SIMD_AVX   (1 << 4)

RESAMPLER_SIMD_AVX2

#define RESAMPLER_SIMD_AVX2   (1 << 12)

RESAMPLER_SIMD_MMX

#define RESAMPLER_SIMD_MMX   (1 << 8)

RESAMPLER_SIMD_MMXEXT

#define RESAMPLER_SIMD_MMXEXT   (1 << 9)

RESAMPLER_SIMD_NEON

#define RESAMPLER_SIMD_NEON   (1 << 5)

RESAMPLER_SIMD_PS

#define RESAMPLER_SIMD_PS   (1 << 14)

RESAMPLER_SIMD_SSE

#define RESAMPLER_SIMD_SSE   (1 << 0)

RESAMPLER_SIMD_SSE2

#define RESAMPLER_SIMD_SSE2   (1 << 1)

RESAMPLER_SIMD_SSE3

#define RESAMPLER_SIMD_SSE3   (1 << 6)

RESAMPLER_SIMD_SSE4

#define RESAMPLER_SIMD_SSE4   (1 << 10)

RESAMPLER_SIMD_SSE42

#define RESAMPLER_SIMD_SSE42   (1 << 11)

RESAMPLER_SIMD_SSSE3

#define RESAMPLER_SIMD_SSSE3   (1 << 7)

RESAMPLER_SIMD_VFPU

#define RESAMPLER_SIMD_VFPU   (1 << 13)

RESAMPLER_SIMD_VMX

#define RESAMPLER_SIMD_VMX   (1 << 2)

RESAMPLER_SIMD_VMX128

#define RESAMPLER_SIMD_VMX128   (1 << 3)

Typedef Documentation

audio_frame_float_t

typedef struct audio_frame_float audio_frame_float_t

resampler_config_free_t

typedef void(* resampler_config_free_t) (void *ptr)

resampler_config_get_float_array_t

typedef int(* resampler_config_get_float_array_t) (void *userdata, const char *key, float **values, unsigned *out_num_values, const float *default_values, unsigned num_default_values)

resampler_config_get_float_t

typedef int(* resampler_config_get_float_t) (void *userdata, const char *key, float *value, float default_value)

resampler_config_get_int_array_t

typedef int(* resampler_config_get_int_array_t) (void *userdata, const char *key, int **values, unsigned *out_num_values, const int *default_values, unsigned num_default_values)

resampler_config_get_int_t

typedef int(* resampler_config_get_int_t) (void *userdata, const char *key, int *value, int default_value)

resampler_config_get_string_t

typedef int(* resampler_config_get_string_t) (void *userdata, const char *key, char **output, const char *default_output)

resampler_free_t

typedef void(* resampler_free_t) (void *data)

resampler_init_t

typedef void*(* resampler_init_t) (const struct resampler_config *config, double bandwidth_mod, enum resampler_quality quality, resampler_simd_mask_t mask)

resampler_process_t

typedef void(* resampler_process_t) (void *_data, struct resampler_data *data)

resampler_simd_mask_t

typedef unsigned resampler_simd_mask_t

retro_resampler_t

typedef struct retro_resampler retro_resampler_t

Enumeration Type Documentation

resampler_quality

enum resampler_quality

Enumerator
RESAMPLER_QUALITY_DONTCARE
RESAMPLER_QUALITY_LOWEST
RESAMPLER_QUALITY_LOWER
RESAMPLER_QUALITY_NORMAL
RESAMPLER_QUALITY_HIGHER
RESAMPLER_QUALITY_HIGHEST

Function Documentation

audio_resampler_driver_find_handle()

const void* audio_resampler_driver_find_handle

(

int

idx

)

audio_resampler_driver_find_handle: : index of driver to get handle to.

Returns: handle to audio resampler driver at index. Can be NULL if nothing found.

audio_resampler_driver_find_handle: : index of driver to get handle to.

Returns: handle to audio resampler driver at index. Can be NULL if nothing found.

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audio_resampler_driver_find_ident()

const char* audio_resampler_driver_find_ident

(

int

idx

)

audio_resampler_driver_find_ident: : index of driver to get handle to.

Returns: Human-readable identifier of audio resampler driver at index. Can be NULL if nothing found.

audio_resampler_driver_find_ident: : index of driver to get handle to.

Returns: Human-readable identifier of audio resampler driver at index. Can be NULL if nothing found.

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retro_resampler_realloc()

bool retro_resampler_realloc	(	void **	re,
		const retro_resampler_t **	backend,
		const char *	ident,
		enum resampler_quality	quality,
		double	bw_ratio
	)

retro_resampler_realloc: : Resampler handle : Resampler backend that is about to be set. : Identifier name for resampler we want. : Bandwidth ratio.

Reallocates resampler. Will free previous handle before allocating a new one. If ident is NULL, first resampler will be used.

Returns: true (1) if successful, otherwise false (0).

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Variable Documentation

nearest_resampler

retro_resampler_t nearest_resampler

null_resampler

retro_resampler_t null_resampler

sinc_resampler

retro_resampler_t sinc_resampler