FFmpeg: ACELPFContext Struct Reference

FFmpeg

ACELPFContext Struct Reference

#include <acelp_filters.h>

Data Fields

void(* acelp_interpolatef )(float *out, const float *in, const float *filter_coeffs, int precision, int frac_pos, int filter_length, int length)

Floating point version of ff_acelp_interpolate() More...

void(* acelp_apply_order_2_transfer_function )(float *out, const float *in, const float zero_coeffs[2], const float pole_coeffs[2], float gain, float mem[2], int n)

Apply an order 2 rational transfer function in-place. More...

Detailed Description

Definition at line 28 of file acelp_filters.h.

Field Documentation

void(* ACELPFContext::acelp_interpolatef)(float *out, const float *in, const float *filter_coeffs, int precision, int frac_pos, int filter_length, int length)

Floating point version of ff_acelp_interpolate()

Definition at line 32 of file acelp_filters.h.

Referenced by decode_pitch_vector(), ff_acelp_filter_init(), and ff_acelp_filter_init_mips().

void(* ACELPFContext::acelp_apply_order_2_transfer_function)(float *out, const float *in, const float zero_coeffs[2], const float pole_coeffs[2], float gain, float mem[2], int n)

Apply an order 2 rational transfer function in-place.

Parameters: out output buffer for filtered speech samples

in input buffer containing speech data (may be the same as out)

zero_coeffs z^-1 and z^-2 coefficients of the numerator

pole_coeffs z^-1 and z^-2 coefficients of the denominator

gain scale factor for final output

mem intermediate values used by filter (should be 0 initially)

n number of samples (should be a multiple of eight)

Definition at line 47 of file acelp_filters.h.

Referenced by amrnb_decode_frame(), amrwb_decode_frame(), ff_acelp_filter_init(), and ff_acelp_filter_init_mips().

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

libavcodec/acelp_filters.h

Generated on Fri Jan 12 2018 01:48:28 for FFmpeg by doxygen 1.8.6