eden-emu/opus
15
0
Fork 0
mirror of https://github.com/xiph/opus.git synced 2025-05-19 18:08:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

More work on making freq.[ch] more generic

Browse source
This commit is contained in:
Jean-Marc Valin 2018-12-13 17:40:05 -05:00
parent fb3112ade6
commit 12f16df6b7
3 changed files with 15 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

16
dnn/freq.c
View file

@ -64,12 +64,12 @@ void compute_band_energy(float *bandE, const kiss_fft_cpx *X) {
{
int j;
int band_size;
band_size = (eband5ms[i+1]-eband5ms[i])<<FRAME_SIZE_SHIFT;
band_size = (eband5ms[i+1]-eband5ms[i])*WINDOW_SIZE_5MS;
for (j=0;j<band_size;j++) {
float tmp;
float frac = (float)j/band_size;
tmp = SQUARE(X[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].r);
tmp += SQUARE(X[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].i);
tmp = SQUARE(X[(eband5ms[i]*WINDOW_SIZE_5MS) + j].r);
tmp += SQUARE(X[(eband5ms[i]*WINDOW_SIZE_5MS) + j].i);
sum[i] += (1-frac)*tmp;
sum[i+1] += frac*tmp;
}
@ -89,12 +89,12 @@ void compute_band_corr(float *bandE, const kiss_fft_cpx *X, const kiss_fft_cpx *
{
int j;
int band_size;
band_size = (eband5ms[i+1]-eband5ms[i])<<FRAME_SIZE_SHIFT;
band_size = (eband5ms[i+1]-eband5ms[i])*WINDOW_SIZE_5MS;
for (j=0;j<band_size;j++) {
float tmp;
float frac = (float)j/band_size;
tmp = X[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].r * P[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].r;
tmp += X[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].i * P[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j].i;
tmp = X[(eband5ms[i]*WINDOW_SIZE_5MS) + j].r * P[(eband5ms[i]*WINDOW_SIZE_5MS) + j].r;
tmp += X[(eband5ms[i]*WINDOW_SIZE_5MS) + j].i * P[(eband5ms[i]*WINDOW_SIZE_5MS) + j].i;
sum[i] += (1-frac)*tmp;
sum[i+1] += frac*tmp;
}
@ -114,10 +114,10 @@ void interp_band_gain(float *g, const float *bandE) {
{
int j;
int band_size;
band_size = (eband5ms[i+1]-eband5ms[i])<<FRAME_SIZE_SHIFT;
band_size = (eband5ms[i+1]-eband5ms[i])*WINDOW_SIZE_5MS;
for (j=0;j<band_size;j++) {
float frac = (float)j/band_size;
g[(eband5ms[i]<<FRAME_SIZE_SHIFT) + j] = (1-frac)*bandE[i] + frac*bandE[i+1];
g[(eband5ms[i]*WINDOW_SIZE_5MS) + j] = (1-frac)*bandE[i] + frac*bandE[i+1];
}
}
}

9
dnn/freq.h
View file

@ -28,9 +28,12 @@
#define PREEMPHASIS (0.85f)
#define FRAME_SIZE_SHIFT 2
#define FRAME_SIZE (40<<FRAME_SIZE_SHIFT)
#define OVERLAP_SIZE (FRAME_SIZE)
#define FRAME_SIZE_5MS (2)
#define OVERLAP_SIZE_5MS (2)
#define WINDOW_SIZE_5MS (FRAME_SIZE_5MS + OVERLAP_SIZE_5MS)
#define FRAME_SIZE (80*FRAME_SIZE_5MS)
#define OVERLAP_SIZE (80*OVERLAP_SIZE_5MS)
#define WINDOW_SIZE (FRAME_SIZE + OVERLAP_SIZE)
#define FREQ_SIZE (WINDOW_SIZE/2 + 1)

2
dnn/test_lpcnet.c
View file

@ -28,9 +28,9 @@
#include <stdio.h>
#include "arch.h"
#include "lpcnet.h"
#include "freq.h"
#define FRAME_SIZE 160
int main(int argc, char **argv) {
FILE *fin, *fout;
LPCNetState *net;