float_dsp.c File Reference

#include "config.h"
#include "attributes.h"
#include "float_dsp.h"
#include "mem.h"

Go to the source code of this file.

Functions
static void	vector_fmul_c (float *dst, const float *src0, const float *src1, int len)
static void	vector_dmul_c (double *dst, const double *src0, const double *src1, int len)
static void	vector_fmac_scalar_c (float *dst, const float *src, float mul, int len)
static void	vector_dmac_scalar_c (double *dst, const double *src, double mul, int len)
static void	vector_fmul_scalar_c (float *dst, const float *src, float mul, int len)
static void	vector_dmul_scalar_c (double *dst, const double *src, double mul, int len)
static void	vector_fmul_window_c (float *dst, const float *src0, const float *src1, const float *win, int len)
static void	vector_fmul_add_c (float *dst, const float *src0, const float *src1, const float *src2, int len)
static void	vector_fmul_reverse_c (float *dst, const float *src0, const float *src1, int len)
static void	butterflies_float_c (float *restrict v1, float *restrict v2, int len)
float	avpriv_scalarproduct_float_c (const float *v1, const float *v2, int len)
	Return the scalar product of two vectors of floats. More...
double	ff_scalarproduct_double_c (const double *v1, const double *v2, size_t len)
	Return the scalar product of two vectors of doubles. More...
av_cold AVFloatDSPContext *	avpriv_float_dsp_alloc (int bit_exact)
	Allocate a float DSP context. More...

Function Documentation

vector_fmul_c()

static void vector_fmul_c ( float *  dst, const float *  src0, const float *  src1, int  len  )

static

Definition at line 27 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_dmul_c()

static void vector_dmul_c ( double *  dst, const double *  src0, const double *  src1, int  len  )

static

Definition at line 35 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_fmac_scalar_c()

static void vector_fmac_scalar_c ( float *  dst, const float *  src, float  mul, int  len  )

static

Definition at line 43 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_dmac_scalar_c()

static void vector_dmac_scalar_c ( double *  dst, const double *  src, double  mul, int  len  )

static

Definition at line 51 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_fmul_scalar_c()

static void vector_fmul_scalar_c ( float *  dst, const float *  src, float  mul, int  len  )

static

Definition at line 59 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_dmul_scalar_c()

static void vector_dmul_scalar_c ( double *  dst, const double *  src, double  mul, int  len  )

static

Definition at line 67 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_fmul_window_c()

static void vector_fmul_window_c ( float *  dst, const float *  src0, const float *  src1, const float *  win, int  len  )

static

Definition at line 75 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_fmul_add_c()

static void vector_fmul_add_c ( float *  dst, const float *  src0, const float *  src1, const float *  src2, int  len  )

static

Definition at line 94 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

vector_fmul_reverse_c()

static void vector_fmul_reverse_c ( float *  dst, const float *  src0, const float *  src1, int  len  )

static

Definition at line 102 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

butterflies_float_c()

static void butterflies_float_c ( float *restrict  v1, float *restrict  v2, int  len  )

static

Definition at line 112 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc().

avpriv_scalarproduct_float_c()

float avpriv_scalarproduct_float_c	(	const float *	v1,
		const float *	v2,
		int	len
	)

Return the scalar product of two vectors of floats.

Parameters

v1	first input vector
v2	first input vector
len	number of elements

Returns

sum of elementwise products

Definition at line 124 of file float_dsp.c.

Referenced by acelp_decode_gain_codef(), apply_gain_ctrl(), avpriv_float_dsp_alloc(), calc_input_response(), convolve(), decode(), decode_frame(), ff_adaptive_gain_control(), ff_amr_set_fixed_gain(), ff_scale_vector_to_given_sum_of_squares(), kalman_smoothen(), postfilter(), synth_block_fcb_acb(), and tilt_factor().

ff_scalarproduct_double_c()

double ff_scalarproduct_double_c	(	const double *	v1,
		const double *	v2,
		size_t	len
	)

Return the scalar product of two vectors of doubles.

Parameters

v1	first input vector
v2	first input vector
len	number of elements

Returns

inner product of the vectors

Definition at line 135 of file float_dsp.c.

Referenced by avpriv_float_dsp_alloc(), and evaluate_lls().

avpriv_float_dsp_alloc()

av_cold AVFloatDSPContext* avpriv_float_dsp_alloc

(

int

strict

)

Allocate a float DSP context.

Parameters

strict

setting to non-zero avoids using functions which may not be IEEE-754 compliant

Definition at line 146 of file float_dsp.c.

Referenced by ac3_decode_init(), atrac1_decode_init(), atrac3_decode_init(), atrac3p_decode_init(), atrac9_decode_init(), checkasm_check_float_dsp(), config_output(), decode_init(), dolby_e_init(), dsp_init(), encode_init(), ff_aac_decode_init_float(), ff_ac3_float_encode_init(), ff_celt_init(), ff_dca_core_init(), ff_dca_lbr_init(), ff_opus_psy_init(), ff_twinvq_decode_init(), imc_decode_init(), init(), mp3lame_encode_init(), on2avc_decode_init(), opus_decode_init(), opus_encode_init(), pcm_decode_init(), ra288_decode_init(), siren_init(), speex_decode_init(), and vorbis_parse_id_hdr().