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Diffstat (limited to 'webrtc/modules/audio_processing/aec/aec_core_mips.c')
-rw-r--r--webrtc/modules/audio_processing/aec/aec_core_mips.c89
1 files changed, 51 insertions, 38 deletions
diff --git a/webrtc/modules/audio_processing/aec/aec_core_mips.c b/webrtc/modules/audio_processing/aec/aec_core_mips.c
index bb33087aee..035a4b76af 100644
--- a/webrtc/modules/audio_processing/aec/aec_core_mips.c
+++ b/webrtc/modules/audio_processing/aec/aec_core_mips.c
@@ -20,13 +20,12 @@
#include "webrtc/modules/audio_processing/aec/aec_core_internal.h"
#include "webrtc/modules/audio_processing/aec/aec_rdft.h"
-static const int flagHbandCn = 1; // flag for adding comfort noise in H band
extern const float WebRtcAec_weightCurve[65];
extern const float WebRtcAec_overDriveCurve[65];
void WebRtcAec_ComfortNoise_mips(AecCore* aec,
float efw[2][PART_LEN1],
- complex_t* comfortNoiseHband,
+ float comfortNoiseHband[2][PART_LEN1],
const float* noisePow,
const float* lambda) {
int i, num;
@@ -274,7 +273,7 @@ void WebRtcAec_ComfortNoise_mips(AecCore* aec,
noiseAvg = 0.0;
tmpAvg = 0.0;
num = 0;
- if ((aec->sampFreq == 32000 || aec->sampFreq == 48000) && flagHbandCn == 1) {
+ if (aec->num_bands > 1) {
for (i = 0; i < PART_LEN; i++) {
rand[i] = ((float)randW16[i]) / 32768;
}
@@ -314,27 +313,35 @@ void WebRtcAec_ComfortNoise_mips(AecCore* aec,
for (i = 0; i < PART_LEN1; i++) {
// Use average NLP weight for H band
- comfortNoiseHband[i][0] = tmpAvg * u[i][0];
- comfortNoiseHband[i][1] = tmpAvg * u[i][1];
+ comfortNoiseHband[0][i] = tmpAvg * u[i][0];
+ comfortNoiseHband[1][i] = tmpAvg * u[i][1];
}
+ } else {
+ memset(comfortNoiseHband, 0,
+ 2 * PART_LEN1 * sizeof(comfortNoiseHband[0][0]));
}
}
-void WebRtcAec_FilterFar_mips(AecCore* aec, float yf[2][PART_LEN1]) {
+void WebRtcAec_FilterFar_mips(
+ int num_partitions,
+ int x_fft_buf_block_pos,
+ float x_fft_buf[2][kExtendedNumPartitions * PART_LEN1],
+ float h_fft_buf[2][kExtendedNumPartitions * PART_LEN1],
+ float y_fft[2][PART_LEN1]) {
int i;
- for (i = 0; i < aec->num_partitions; i++) {
- int xPos = (i + aec->xfBufBlockPos) * PART_LEN1;
+ for (i = 0; i < num_partitions; i++) {
+ int xPos = (i + x_fft_buf_block_pos) * PART_LEN1;
int pos = i * PART_LEN1;
// Check for wrap
- if (i + aec->xfBufBlockPos >= aec->num_partitions) {
- xPos -= aec->num_partitions * (PART_LEN1);
+ if (i + x_fft_buf_block_pos >= num_partitions) {
+ xPos -= num_partitions * (PART_LEN1);
}
- float* yf0 = yf[0];
- float* yf1 = yf[1];
- float* aRe = aec->xfBuf[0] + xPos;
- float* aIm = aec->xfBuf[1] + xPos;
- float* bRe = aec->wfBuf[0] + pos;
- float* bIm = aec->wfBuf[1] + pos;
+ float* yf0 = y_fft[0];
+ float* yf1 = y_fft[1];
+ float* aRe = x_fft_buf[0] + xPos;
+ float* aIm = x_fft_buf[1] + xPos;
+ float* bRe = h_fft_buf[0] + pos;
+ float* bIm = h_fft_buf[1] + pos;
float f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13;
int len = PART_LEN1 >> 1;
@@ -432,23 +439,27 @@ void WebRtcAec_FilterFar_mips(AecCore* aec, float yf[2][PART_LEN1]) {
}
}
-void WebRtcAec_FilterAdaptation_mips(AecCore* aec,
- float* fft,
- float ef[2][PART_LEN1]) {
+void WebRtcAec_FilterAdaptation_mips(
+ int num_partitions,
+ int x_fft_buf_block_pos,
+ float x_fft_buf[2][kExtendedNumPartitions * PART_LEN1],
+ float e_fft[2][PART_LEN1],
+ float h_fft_buf[2][kExtendedNumPartitions * PART_LEN1]) {
+ float fft[PART_LEN2];
int i;
- for (i = 0; i < aec->num_partitions; i++) {
- int xPos = (i + aec->xfBufBlockPos)*(PART_LEN1);
+ for (i = 0; i < num_partitions; i++) {
+ int xPos = (i + x_fft_buf_block_pos)*(PART_LEN1);
int pos;
// Check for wrap
- if (i + aec->xfBufBlockPos >= aec->num_partitions) {
- xPos -= aec->num_partitions * PART_LEN1;
+ if (i + x_fft_buf_block_pos >= num_partitions) {
+ xPos -= num_partitions * PART_LEN1;
}
pos = i * PART_LEN1;
- float* aRe = aec->xfBuf[0] + xPos;
- float* aIm = aec->xfBuf[1] + xPos;
- float* bRe = ef[0];
- float* bIm = ef[1];
+ float* aRe = x_fft_buf[0] + xPos;
+ float* aIm = x_fft_buf[1] + xPos;
+ float* bRe = e_fft[0];
+ float* bIm = e_fft[1];
float* fft_tmp;
float f0, f1, f2, f3, f4, f5, f6 ,f7, f8, f9, f10, f11, f12;
@@ -573,8 +584,8 @@ void WebRtcAec_FilterAdaptation_mips(AecCore* aec,
);
}
aec_rdft_forward_128(fft);
- aRe = aec->wfBuf[0] + pos;
- aIm = aec->wfBuf[1] + pos;
+ aRe = h_fft_buf[0] + pos;
+ aIm = h_fft_buf[1] + pos;
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
@@ -699,15 +710,18 @@ void WebRtcAec_OverdriveAndSuppress_mips(AecCore* aec,
}
}
-void WebRtcAec_ScaleErrorSignal_mips(AecCore* aec, float ef[2][PART_LEN1]) {
- const float mu = aec->extended_filter_enabled ? kExtendedMu : aec->normal_mu;
- const float error_threshold = aec->extended_filter_enabled
+void WebRtcAec_ScaleErrorSignal_mips(int extended_filter_enabled,
+ float normal_mu,
+ float normal_error_threshold,
+ float x_pow[PART_LEN1],
+ float ef[2][PART_LEN1]) {
+ const float mu = extended_filter_enabled ? kExtendedMu : normal_mu;
+ const float error_threshold = extended_filter_enabled
? kExtendedErrorThreshold
- : aec->normal_error_threshold;
+ : normal_error_threshold;
int len = (PART_LEN1);
float* ef0 = ef[0];
float* ef1 = ef[1];
- float* xPow = aec->xPow;
float fac1 = 1e-10f;
float err_th2 = error_threshold * error_threshold;
float f0, f1, f2;
@@ -719,7 +733,7 @@ void WebRtcAec_ScaleErrorSignal_mips(AecCore* aec, float ef[2][PART_LEN1]) {
".set push \n\t"
".set noreorder \n\t"
"1: \n\t"
- "lwc1 %[f0], 0(%[xPow]) \n\t"
+ "lwc1 %[f0], 0(%[x_pow]) \n\t"
"lwc1 %[f1], 0(%[ef0]) \n\t"
"lwc1 %[f2], 0(%[ef1]) \n\t"
"add.s %[f0], %[f0], %[fac1] \n\t"
@@ -747,7 +761,7 @@ void WebRtcAec_ScaleErrorSignal_mips(AecCore* aec, float ef[2][PART_LEN1]) {
"swc1 %[f1], 0(%[ef0]) \n\t"
"swc1 %[f2], 0(%[ef1]) \n\t"
"addiu %[len], %[len], -1 \n\t"
- "addiu %[xPow], %[xPow], 4 \n\t"
+ "addiu %[x_pow], %[x_pow], 4 \n\t"
"addiu %[ef0], %[ef0], 4 \n\t"
"bgtz %[len], 1b \n\t"
" addiu %[ef1], %[ef1], 4 \n\t"
@@ -756,7 +770,7 @@ void WebRtcAec_ScaleErrorSignal_mips(AecCore* aec, float ef[2][PART_LEN1]) {
#if !defined(MIPS32_R2_LE)
[f3] "=&f" (f3),
#endif
- [xPow] "+r" (xPow), [ef0] "+r" (ef0), [ef1] "+r" (ef1),
+ [x_pow] "+r" (x_pow), [ef0] "+r" (ef0), [ef1] "+r" (ef1),
[len] "+r" (len)
: [fac1] "f" (fac1), [err_th2] "f" (err_th2), [mu] "f" (mu),
[err_th] "f" (error_threshold)
@@ -771,4 +785,3 @@ void WebRtcAec_InitAec_mips(void) {
WebRtcAec_ComfortNoise = WebRtcAec_ComfortNoise_mips;
WebRtcAec_OverdriveAndSuppress = WebRtcAec_OverdriveAndSuppress_mips;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-11 21:05:33 +0000