swresample_internal.h File Reference

#include "swresample.h"
#include "libavutil/channel_layout.h"
#include "config.h"

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Data Structures
struct	AudioData
	Audio buffer used for intermediate storage between conversion phases. More...
struct	DitherContext
struct	SwrContext
struct	Resampler

Macros
#define	SQRT3_2   1.22474487139158904909 /* sqrt(3/2) */
#define	NS_TAPS   20

Typedefs
typedef int	integer
typedef void(	mix_1_1_func_type) (void *out, const void *in, void *coeffp, integer index, integer len)
typedef void(	mix_2_1_func_type) (void *out, const void *in1, const void *in2, void *coeffp, integer index1, integer index2, integer len)
typedef void(	mix_any_func_type) (uint8_t **out, const uint8_t **in1, void *coeffp, integer len)
typedef struct AudioData	AudioData
typedef struct ResampleContext *(*	resample_init_func) (struct ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, int kaiser_beta, double precision, int cheby)
typedef void(*	resample_free_func) (struct ResampleContext **c)
typedef int(*	multiple_resample_func) (struct ResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed)
typedef int(*	resample_flush_func) (struct SwrContext *c)
typedef int(*	set_compensation_func) (struct ResampleContext *c, int sample_delta, int compensation_distance)
typedef int64_t(*	get_delay_func) (struct SwrContext *s, int64_t base)

Functions
int	swri_realloc_audio (AudioData *a, int count)
int	swri_resample_int16 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx)
int	swri_resample_int32 (struct ResampleContext *c, int32_t *dst, const int32_t *src, int *consumed, int src_size, int dst_size, int update_ctx)
int	swri_resample_float (struct ResampleContext *c, float *dst, const float *src, int *consumed, int src_size, int dst_size, int update_ctx)
int	swri_resample_double (struct ResampleContext *c, double *dst, const double *src, int *consumed, int src_size, int dst_size, int update_ctx)
void	swri_noise_shaping_int16 (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count)
void	swri_noise_shaping_int32 (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count)
void	swri_noise_shaping_float (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count)
void	swri_noise_shaping_double (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count)
int	swri_rematrix_init (SwrContext *s)
void	swri_rematrix_free (SwrContext *s)
int	swri_rematrix (SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy)
void	swri_rematrix_init_x86 (struct SwrContext *s)
void	swri_get_dither (SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat noise_fmt)
int	swri_dither_init (SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt)
void	swri_audio_convert_init_arm (struct AudioConvert *ac, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels)
void	swri_audio_convert_init_x86 (struct AudioConvert *ac, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels)

Variables
struct Resampler const	swri_resampler

Macro Definition Documentation

#define NS_TAPS   20

Definition at line 30 of file swresample_internal.h.

#define SQRT3_2   1.22474487139158904909 /* sqrt(3/2) */

Definition at line 28 of file swresample_internal.h.

Typedef Documentation

typedef struct AudioData AudioData

typedef int64_t(* get_delay_func) (struct SwrContext *s, int64_t base)

Definition at line 157 of file swresample_internal.h.

typedef int integer

Definition at line 35 of file swresample_internal.h.

typedef void( mix_1_1_func_type) (void *out, const void *in, void *coeffp, integer index, integer len)

Definition at line 38 of file swresample_internal.h.

typedef void( mix_2_1_func_type) (void *out, const void *in1, const void *in2, void *coeffp, integer index1, integer index2, integer len)

Definition at line 39 of file swresample_internal.h.

typedef void( mix_any_func_type) (uint8_t **out, const uint8_t **in1, void *coeffp, integer len)

Definition at line 41 of file swresample_internal.h.

typedef int(* multiple_resample_func) (struct ResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed)

Definition at line 154 of file swresample_internal.h.

typedef int(* resample_flush_func) (struct SwrContext *c)

Definition at line 155 of file swresample_internal.h.

typedef void(* resample_free_func) (struct ResampleContext **c)

Definition at line 153 of file swresample_internal.h.

typedef struct ResampleContext*(* resample_init_func) (struct ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, int kaiser_beta, double precision, int cheby)

Definition at line 151 of file swresample_internal.h.

typedef int(* set_compensation_func) (struct ResampleContext *c, int sample_delta, int compensation_distance)

Definition at line 156 of file swresample_internal.h.

Function Documentation

void swri_audio_convert_init_arm	(	struct AudioConvert *	ac,
		enum AVSampleFormat	out_fmt,
		enum AVSampleFormat	in_fmt,
		int	channels
	)

Definition at line 48 of file libswresample/arm/audio_convert_init.c.

void swri_audio_convert_init_x86	(	struct AudioConvert *	ac,
		enum AVSampleFormat	out_fmt,
		enum AVSampleFormat	in_fmt,
		int	channels
	)

Definition at line 33 of file swresample_x86.c.

int swri_dither_init	(	SwrContext *	s,
		enum AVSampleFormat	out_fmt,
		enum AVSampleFormat	in_fmt
	)

Definition at line 75 of file libswresample/dither.c.

Referenced by swr_init().

void swri_get_dither	(	SwrContext *	s,
		void *	dst,
		int	len,
		unsigned	seed,
		enum AVSampleFormat	noise_fmt
	)

Definition at line 26 of file libswresample/dither.c.

Referenced by swr_convert_internal().

void swri_noise_shaping_double	(	SwrContext *	s,
		AudioData *	dsts,
		const AudioData *	srcs,
		const AudioData *	noises,
		int	count
	)

Referenced by swr_convert_internal().

void swri_noise_shaping_float	(	SwrContext *	s,
		AudioData *	dsts,
		const AudioData *	srcs,
		const AudioData *	noises,
		int	count
	)

Referenced by swr_convert_internal().

void swri_noise_shaping_int16	(	SwrContext *	s,
		AudioData *	dsts,
		const AudioData *	srcs,
		const AudioData *	noises,
		int	count
	)

Referenced by swr_convert_internal().

void swri_noise_shaping_int32	(	SwrContext *	s,
		AudioData *	dsts,
		const AudioData *	srcs,
		const AudioData *	noises,
		int	count
	)

Referenced by swr_convert_internal().

int swri_realloc_audio	(	AudioData *	a,
		int	count
	)

Definition at line 444 of file swresample.c.

Referenced by resample(), resample_flush(), swr_convert(), swr_convert_internal(), and swr_inject_silence().

int swri_rematrix	(	SwrContext *	s,
		AudioData *	out,
		AudioData *	in,
		int	len,
		int	mustcopy
	)

Definition at line 393 of file rematrix.c.

Referenced by swr_convert_internal().

void swri_rematrix_free

(

SwrContext *

s

)

Definition at line 387 of file rematrix.c.

Referenced by swr_free(), and swr_init().

int swri_rematrix_init

(

SwrContext *

s

)

Definition at line 327 of file rematrix.c.

Referenced by swr_init().

void swri_rematrix_init_x86

(

struct SwrContext *

s

)

Referenced by swri_rematrix_init().

int swri_resample_double	(	struct ResampleContext *	c,
		double *	dst,
		const double *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

int swri_resample_float	(	struct ResampleContext *	c,
		float *	dst,
		const float *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

int swri_resample_int16	(	struct ResampleContext *	c,
		int16_t *	dst,
		const int16_t *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

int swri_resample_int32	(	struct ResampleContext *	c,
		int32_t *	dst,
		const int32_t *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

Variable Documentation

struct Resampler const swri_resampler

Definition at line 365 of file libswresample/resample.c.

Referenced by swr_init().