AVFloatDSPContext Struct Reference

#include <float_dsp.h>

Data Fields
void(*	vector_fmul )(float *dst, const float *src0, const float *src1, int len)
	Calculate the product of two vectors of floats and store the result in a vector of floats.
void(*	vector_fmac_scalar )(float *dst, const float *src, float mul, int len)
	Multiply a vector of floats by a scalar float and add to destination vector.
void(*	vector_fmul_scalar )(float *dst, const float *src, float mul, int len)
	Multiply a vector of floats by a scalar float.
void(*	vector_dmul_scalar )(double *dst, const double *src, double mul, int len)
	Multiply a vector of double by a scalar double.

Detailed Description

Definition at line 22 of file float_dsp.h.

Field Documentation

void(* AVFloatDSPContext::vector_fmul)(float *dst, const float *src0, const float *src1, int len)

Calculate the product of two vectors of floats and store the result in a vector of floats.

Parameters

dst	output vector constraints: 32-byte aligned
src0	first input vector constraints: 32-byte aligned
src1	second input vector constraints: 32-byte aligned
len	number of elements in the input constraints: multiple of 16

Definition at line 36 of file float_dsp.h.

Referenced by apply_mdct(), apply_window(), apply_window_and_mdct(), avpriv_float_dsp_init(), backward_filter(), do_hybrid_window(), ff_float_dsp_init_mips(), ff_float_dsp_init_neon(), ff_float_dsp_init_ppc(), ff_float_dsp_init_vfp(), ff_float_dsp_init_x86(), imlt(), read_and_decode_spectrum(), sbr_qmf_synthesis(), vorbis_parse_audio_packet(), and windowing_and_mdct_ltp().

void(* AVFloatDSPContext::vector_fmac_scalar)(float *dst, const float *src, float mul, int len)

Multiply a vector of floats by a scalar float and add to destination vector.

Source and destination vectors must overlap exactly or not at all.

Parameters

dst	result vector constraints: 32-byte aligned
src	input vector constraints: 32-byte aligned
mul	scalar value
len	length of vector constraints: multiple of 16

Definition at line 52 of file float_dsp.h.

Referenced by avpriv_float_dsp_init(), dca_decode_frame(), ff_float_dsp_init_neon(), ff_float_dsp_init_x86(), and output_frame().

void(* AVFloatDSPContext::vector_fmul_scalar)(float *dst, const float *src, float mul, int len)

Multiply a vector of floats by a scalar float.

Source and destination vectors must overlap exactly or not at all.

Parameters

dst	result vector constraints: 16-byte aligned
src	input vector constraints: 16-byte aligned
mul	scalar value
len	length of vector constraints: multiple of 4

Definition at line 67 of file float_dsp.h.

Referenced by apply_intensity_stereo(), apply_window_and_mdct(), avpriv_float_dsp_init(), decode_spectrum_and_dequant(), decode_subframe(), ff_float_dsp_init_neon(), ff_float_dsp_init_x86(), filter_frame(), inverse_channel_transform(), and mp3lame_encode_frame().

void(* AVFloatDSPContext::vector_dmul_scalar)(double *dst, const double *src, double mul, int len)

Multiply a vector of double by a scalar double.

Source and destination vectors must overlap exactly or not at all.

Parameters

dst	result vector constraints: 32-byte aligned
src	input vector constraints: 32-byte aligned
mul	scalar value
len	length of vector constraints: multiple of 8

Definition at line 82 of file float_dsp.h.

Referenced by avpriv_float_dsp_init(), ff_float_dsp_init_x86(), and filter_frame().

---

The documentation for this struct was generated from the following file:

• libavutil/float_dsp.h