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swresample_internal.h File Reference
#include "swresample.h"
#include "libavutil/channel_layout.h"
#include "config.h"

Go to the source code of this file.

Data Structures

struct  AudioData
 Audio buffer used for intermediate storage between conversion phases. More...
 
struct  DitherContext
 
struct  SwrContext
 The libswresample context. More...
 
struct  Resampler
 

Macros

#define SWR_CH_MAX   32
 
#define SQRT3_2   1.22474487139158904909 /* sqrt(3/2) */
 
#define NS_TAPS   20
 

Typedefs

typedef int integer
 
typedef voidmix_1_1_func_type )(void *out, const void *in, void *coeffp, integer index, integer len)
 
typedef voidmix_2_1_func_type )(void *out, const void *in1, const void *in2, void *coeffp, integer index1, integer index2, integer len)
 
typedef voidmix_any_func_type )(uint8_t **out, const uint8_t **in1, void *coeffp, integer len)
 
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)
 
typedef int(* invert_initial_buffer_func )(struct ResampleContext *c, AudioData *dst, const AudioData *src, int src_size, int *dst_idx, int *dst_count)
 

Functions

int swri_realloc_audio (AudioData *a, int count)
 
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_aarch64 (struct AudioConvert *ac, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels)
 
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 SWR_CH_MAX   32

Definition at line 28 of file swresample_internal.h.

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

Definition at line 30 of file swresample_internal.h.

#define NS_TAPS   20

Definition at line 32 of file swresample_internal.h.

Typedef Documentation

typedef int integer

Definition at line 37 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 40 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 41 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 43 of file swresample_internal.h.

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

Definition at line 157 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 158 of file swresample_internal.h.

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

Definition at line 159 of file swresample_internal.h.

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

Definition at line 160 of file swresample_internal.h.

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

Definition at line 161 of file swresample_internal.h.

typedef int(* invert_initial_buffer_func)(struct ResampleContext *c, AudioData *dst, const AudioData *src, int src_size, int *dst_idx, int *dst_count)

Definition at line 162 of file swresample_internal.h.

Function Documentation

int swri_realloc_audio ( AudioData a,
int  count 
)
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().

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_double ( SwrContext s,
AudioData dsts,
const AudioData srcs,
const AudioData noises,
int  count 
)

Referenced by swr_convert_internal().

int swri_rematrix_init ( SwrContext s)

Definition at line 348 of file rematrix.c.

Referenced by swr_init().

void swri_rematrix_free ( SwrContext s)

Definition at line 419 of file rematrix.c.

Referenced by clear_context().

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

Definition at line 426 of file rematrix.c.

Referenced by swr_convert_internal().

void swri_rematrix_init_x86 ( struct SwrContext s)

Definition at line 33 of file rematrix_init.c.

Referenced by swri_rematrix_init().

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

Definition at line 26 of file dither.c.

Referenced by swr_convert_internal().

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

Definition at line 75 of file dither.c.

Referenced by swr_init().

void swri_audio_convert_init_aarch64 ( struct AudioConvert ac,
enum AVSampleFormat  out_fmt,
enum AVSampleFormat  in_fmt,
int  channels 
)

Definition at line 48 of file audio_convert_init.c.

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 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 34 of file audio_convert_init.c.

Variable Documentation

struct Resampler const swri_resampler

Definition at line 409 of file resample.c.

Referenced by swr_init().