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Reformat the WebRTC code base

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Running clang-format with chromium's style guide.

The goal is n-fold:
 * providing consistency and readability (that's what code guidelines are for)
 * preventing noise with presubmit checks and git cl format
 * building on the previous point: making it easier to automatically fix format issues
 * you name it

Please consider using git-hyper-blame to ignore this commit.

Bug: webrtc:9340
Change-Id: I694567c4cdf8cee2860958cfe82bfaf25848bb87
Reviewed-on: https://webrtc-review.googlesource.com/81185
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23660}
This commit is contained in:
Yves Gerey
2018-06-19 15:03:05 +02:00
parent b602123a5a
commit 665174fdbb
1569 changed files with 30495 additions and 30309 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1601
modules/audio_processing/aecm/aecm_core.cc
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164
modules/audio_processing/aecm/aecm_core.h
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@ -29,109 +29,109 @@ extern "C" {
#endif
typedef struct {
int16_t real;
int16_t imag;
int16_t real;
int16_t imag;
} ComplexInt16;
typedef struct {
int farBufWritePos;
int farBufReadPos;
int knownDelay;
int lastKnownDelay;
int firstVAD; // Parameter to control poorly initialized channels
int farBufWritePos;
int farBufReadPos;
int knownDelay;
int lastKnownDelay;
int firstVAD; // Parameter to control poorly initialized channels
RingBuffer* farFrameBuf;
RingBuffer* nearNoisyFrameBuf;
RingBuffer* nearCleanFrameBuf;
RingBuffer* outFrameBuf;
RingBuffer* farFrameBuf;
RingBuffer* nearNoisyFrameBuf;
RingBuffer* nearCleanFrameBuf;
RingBuffer* outFrameBuf;
int16_t farBuf[FAR_BUF_LEN];
int16_t farBuf[FAR_BUF_LEN];
int16_t mult;
uint32_t seed;
int16_t mult;
uint32_t seed;
// Delay estimation variables
void* delay_estimator_farend;
void* delay_estimator;
uint16_t currentDelay;
// Far end history variables
// TODO(bjornv): Replace |far_history| with ring_buffer.
uint16_t far_history[PART_LEN1 * MAX_DELAY];
int far_history_pos;
int far_q_domains[MAX_DELAY];
// Delay estimation variables
void* delay_estimator_farend;
void* delay_estimator;
uint16_t currentDelay;
// Far end history variables
// TODO(bjornv): Replace |far_history| with ring_buffer.
uint16_t far_history[PART_LEN1 * MAX_DELAY];
int far_history_pos;
int far_q_domains[MAX_DELAY];
int16_t nlpFlag;
int16_t fixedDelay;
int16_t nlpFlag;
int16_t fixedDelay;
uint32_t totCount;
uint32_t totCount;
int16_t dfaCleanQDomain;
int16_t dfaCleanQDomainOld;
int16_t dfaNoisyQDomain;
int16_t dfaNoisyQDomainOld;
int16_t dfaCleanQDomain;
int16_t dfaCleanQDomainOld;
int16_t dfaNoisyQDomain;
int16_t dfaNoisyQDomainOld;
int16_t nearLogEnergy[MAX_BUF_LEN];
int16_t farLogEnergy;
int16_t echoAdaptLogEnergy[MAX_BUF_LEN];
int16_t echoStoredLogEnergy[MAX_BUF_LEN];
int16_t nearLogEnergy[MAX_BUF_LEN];
int16_t farLogEnergy;
int16_t echoAdaptLogEnergy[MAX_BUF_LEN];
int16_t echoStoredLogEnergy[MAX_BUF_LEN];
// The extra 16 or 32 bytes in the following buffers are for alignment based
// Neon code.
// It's designed this way since the current GCC compiler can't align a
// buffer in 16 or 32 byte boundaries properly.
int16_t channelStored_buf[PART_LEN1 + 8];
int16_t channelAdapt16_buf[PART_LEN1 + 8];
int32_t channelAdapt32_buf[PART_LEN1 + 8];
int16_t xBuf_buf[PART_LEN2 + 16]; // farend
int16_t dBufClean_buf[PART_LEN2 + 16]; // nearend
int16_t dBufNoisy_buf[PART_LEN2 + 16]; // nearend
int16_t outBuf_buf[PART_LEN + 8];
// The extra 16 or 32 bytes in the following buffers are for alignment based
// Neon code.
// It's designed this way since the current GCC compiler can't align a
// buffer in 16 or 32 byte boundaries properly.
int16_t channelStored_buf[PART_LEN1 + 8];
int16_t channelAdapt16_buf[PART_LEN1 + 8];
int32_t channelAdapt32_buf[PART_LEN1 + 8];
int16_t xBuf_buf[PART_LEN2 + 16]; // farend
int16_t dBufClean_buf[PART_LEN2 + 16]; // nearend
int16_t dBufNoisy_buf[PART_LEN2 + 16]; // nearend
int16_t outBuf_buf[PART_LEN + 8];
// Pointers to the above buffers
int16_t *channelStored;
int16_t *channelAdapt16;
int32_t *channelAdapt32;
int16_t *xBuf;
int16_t *dBufClean;
int16_t *dBufNoisy;
int16_t *outBuf;
// Pointers to the above buffers
int16_t* channelStored;
int16_t* channelAdapt16;
int32_t* channelAdapt32;
int16_t* xBuf;
int16_t* dBufClean;
int16_t* dBufNoisy;
int16_t* outBuf;
int32_t echoFilt[PART_LEN1];
int16_t nearFilt[PART_LEN1];
int32_t noiseEst[PART_LEN1];
int noiseEstTooLowCtr[PART_LEN1];
int noiseEstTooHighCtr[PART_LEN1];
int16_t noiseEstCtr;
int16_t cngMode;
int32_t echoFilt[PART_LEN1];
int16_t nearFilt[PART_LEN1];
int32_t noiseEst[PART_LEN1];
int noiseEstTooLowCtr[PART_LEN1];
int noiseEstTooHighCtr[PART_LEN1];
int16_t noiseEstCtr;
int16_t cngMode;
int32_t mseAdaptOld;
int32_t mseStoredOld;
int32_t mseThreshold;
int32_t mseAdaptOld;
int32_t mseStoredOld;
int32_t mseThreshold;
int16_t farEnergyMin;
int16_t farEnergyMax;
int16_t farEnergyMaxMin;
int16_t farEnergyVAD;
int16_t farEnergyMSE;
int currentVADValue;
int16_t vadUpdateCount;
int16_t farEnergyMin;
int16_t farEnergyMax;
int16_t farEnergyMaxMin;
int16_t farEnergyVAD;
int16_t farEnergyMSE;
int currentVADValue;
int16_t vadUpdateCount;
int16_t startupState;
int16_t mseChannelCount;
int16_t supGain;
int16_t supGainOld;
int16_t startupState;
int16_t mseChannelCount;
int16_t supGain;
int16_t supGainOld;
int16_t supGainErrParamA;
int16_t supGainErrParamD;
int16_t supGainErrParamDiffAB;
int16_t supGainErrParamDiffBD;
int16_t supGainErrParamA;
int16_t supGainErrParamD;
int16_t supGainErrParamDiffAB;
int16_t supGainErrParamDiffBD;
struct RealFFT* real_fft;
struct RealFFT* real_fft;
#ifdef AEC_DEBUG
FILE *farFile;
FILE *nearFile;
FILE *outFile;
FILE* farFile;
FILE* nearFile;
FILE* outFile;
#endif
} AecmCore;

396
modules/audio_processing/aecm/aecm_core_c.cc
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@ -30,28 +30,25 @@ extern "C" {
// Square root of Hanning window in Q14.
static const ALIGN8_BEG int16_t WebRtcAecm_kSqrtHanning[] ALIGN8_END = {
0, 399, 798, 1196, 1594, 1990, 2386, 2780, 3172,
3562, 3951, 4337, 4720, 5101, 5478, 5853, 6224,
6591, 6954, 7313, 7668, 8019, 8364, 8705, 9040,
9370, 9695, 10013, 10326, 10633, 10933, 11227, 11514,
11795, 12068, 12335, 12594, 12845, 13089, 13325, 13553,
13773, 13985, 14189, 14384, 14571, 14749, 14918, 15079,
15231, 15373, 15506, 15631, 15746, 15851, 15947, 16034,
16111, 16179, 16237, 16286, 16325, 16354, 16373, 16384
};
0, 399, 798, 1196, 1594, 1990, 2386, 2780, 3172, 3562, 3951,
4337, 4720, 5101, 5478, 5853, 6224, 6591, 6954, 7313, 7668, 8019,
8364, 8705, 9040, 9370, 9695, 10013, 10326, 10633, 10933, 11227, 11514,
11795, 12068, 12335, 12594, 12845, 13089, 13325, 13553, 13773, 13985, 14189,
14384, 14571, 14749, 14918, 15079, 15231, 15373, 15506, 15631, 15746, 15851,
15947, 16034, 16111, 16179, 16237, 16286, 16325, 16354, 16373, 16384};
#ifdef AECM_WITH_ABS_APPROX
//Q15 alpha = 0.99439986968132 const Factor for magnitude approximation
// Q15 alpha = 0.99439986968132 const Factor for magnitude approximation
static const uint16_t kAlpha1 = 32584;
//Q15 beta = 0.12967166976970 const Factor for magnitude approximation
// Q15 beta = 0.12967166976970 const Factor for magnitude approximation
static const uint16_t kBeta1 = 4249;
//Q15 alpha = 0.94234827210087 const Factor for magnitude approximation
// Q15 alpha = 0.94234827210087 const Factor for magnitude approximation
static const uint16_t kAlpha2 = 30879;
//Q15 beta = 0.33787806009150 const Factor for magnitude approximation
// Q15 beta = 0.33787806009150 const Factor for magnitude approximation
static const uint16_t kBeta2 = 11072;
//Q15 alpha = 0.82247698684306 const Factor for magnitude approximation
// Q15 alpha = 0.82247698684306 const Factor for magnitude approximation
static const uint16_t kAlpha3 = 26951;
//Q15 beta = 0.57762063060713 const Factor for magnitude approximation
// Q15 beta = 0.57762063060713 const Factor for magnitude approximation
static const uint16_t kBeta3 = 18927;
#endif
@ -77,8 +74,8 @@ static void WindowAndFFT(AecmCore* aecm,
int16_t scaled_time_signal = time_signal[i] * (1 << time_signal_scaling);
fft[i] = (int16_t)((scaled_time_signal * WebRtcAecm_kSqrtHanning[i]) >> 14);
scaled_time_signal = time_signal[i + PART_LEN] * (1 << time_signal_scaling);
fft[PART_LEN + i] = (int16_t)((
scaled_time_signal * WebRtcAecm_kSqrtHanning[PART_LEN - i]) >> 14);
fft[PART_LEN + i] = (int16_t)(
(scaled_time_signal * WebRtcAecm_kSqrtHanning[PART_LEN - i]) >> 14);
}
// Do forward FFT, then take only the first PART_LEN complex samples,
@ -115,32 +112,27 @@ static void InverseFFTAndWindow(AecmCore* aecm,
outCFFT = WebRtcSpl_RealInverseFFT(aecm->real_fft, fft, ifft_out);
for (i = 0; i < PART_LEN; i++) {
ifft_out[i] = (int16_t)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
ifft_out[i], WebRtcAecm_kSqrtHanning[i], 14);
ifft_out[i], WebRtcAecm_kSqrtHanning[i], 14);
tmp32no1 = WEBRTC_SPL_SHIFT_W32((int32_t)ifft_out[i],
outCFFT - aecm->dfaCleanQDomain);
outCFFT - aecm->dfaCleanQDomain);
output[i] = (int16_t)WEBRTC_SPL_SAT(WEBRTC_SPL_WORD16_MAX,
tmp32no1 + aecm->outBuf[i],
WEBRTC_SPL_WORD16_MIN);
tmp32no1 = (ifft_out[PART_LEN + i] *
WebRtcAecm_kSqrtHanning[PART_LEN - i]) >> 14;
tmp32no1 = WEBRTC_SPL_SHIFT_W32(tmp32no1,
outCFFT - aecm->dfaCleanQDomain);
aecm->outBuf[i] = (int16_t)WEBRTC_SPL_SAT(WEBRTC_SPL_WORD16_MAX,
tmp32no1,
WEBRTC_SPL_WORD16_MIN);
tmp32no1 =
(ifft_out[PART_LEN + i] * WebRtcAecm_kSqrtHanning[PART_LEN - i]) >> 14;
tmp32no1 = WEBRTC_SPL_SHIFT_W32(tmp32no1, outCFFT - aecm->dfaCleanQDomain);
aecm->outBuf[i] = (int16_t)WEBRTC_SPL_SAT(WEBRTC_SPL_WORD16_MAX, tmp32no1,
WEBRTC_SPL_WORD16_MIN);
}
// Copy the current block to the old position
// (aecm->outBuf is shifted elsewhere)
memcpy(aecm->xBuf, aecm->xBuf + PART_LEN, sizeof(int16_t) * PART_LEN);
memcpy(aecm->dBufNoisy,
aecm->dBufNoisy + PART_LEN,
memcpy(aecm->dBufNoisy, aecm->dBufNoisy + PART_LEN,
sizeof(int16_t) * PART_LEN);
if (nearendClean != NULL)
{
memcpy(aecm->dBufClean,
aecm->dBufClean + PART_LEN,
if (nearendClean != NULL) {
memcpy(aecm->dBufClean, aecm->dBufClean + PART_LEN,
sizeof(int16_t) * PART_LEN);
}
}
@ -171,7 +163,7 @@ static int TimeToFrequencyDomain(AecmCore* aecm,
// In fft_buf, +16 for 32-byte alignment.
int16_t fft_buf[PART_LEN4 + 16];
int16_t *fft = (int16_t *) (((uintptr_t) fft_buf + 31) & ~31);
int16_t* fft = (int16_t*)(((uintptr_t)fft_buf + 31) & ~31);
int16_t tmp16no1;
#ifndef WEBRTC_ARCH_ARM_V7
@ -196,54 +188,43 @@ static int TimeToFrequencyDomain(AecmCore* aecm,
freq_signal[0].imag = 0;
freq_signal[PART_LEN].imag = 0;
freq_signal_abs[0] = (uint16_t)WEBRTC_SPL_ABS_W16(freq_signal[0].real);
freq_signal_abs[PART_LEN] = (uint16_t)WEBRTC_SPL_ABS_W16(
freq_signal[PART_LEN].real);
(*freq_signal_sum_abs) = (uint32_t)(freq_signal_abs[0]) +
(uint32_t)(freq_signal_abs[PART_LEN]);
freq_signal_abs[PART_LEN] =
(uint16_t)WEBRTC_SPL_ABS_W16(freq_signal[PART_LEN].real);
(*freq_signal_sum_abs) =
(uint32_t)(freq_signal_abs[0]) + (uint32_t)(freq_signal_abs[PART_LEN]);
for (i = 1; i < PART_LEN; i++)
{
if (freq_signal[i].real == 0)
{
for (i = 1; i < PART_LEN; i++) {
if (freq_signal[i].real == 0) {
freq_signal_abs[i] = (uint16_t)WEBRTC_SPL_ABS_W16(freq_signal[i].imag);
}
else if (freq_signal[i].imag == 0)
{
} else if (freq_signal[i].imag == 0) {
freq_signal_abs[i] = (uint16_t)WEBRTC_SPL_ABS_W16(freq_signal[i].real);
}
else
{
// Approximation for magnitude of complex fft output
// magn = sqrt(real^2 + imag^2)
// magn ~= alpha * max(|imag|,|real|) + beta * min(|imag|,|real|)
//
// The parameters alpha and beta are stored in Q15
} else {
// Approximation for magnitude of complex fft output
// magn = sqrt(real^2 + imag^2)
// magn ~= alpha * max(|imag|,|real|) + beta * min(|imag|,|real|)
//
// The parameters alpha and beta are stored in Q15
#ifdef AECM_WITH_ABS_APPROX
tmp16no1 = WEBRTC_SPL_ABS_W16(freq_signal[i].real);
tmp16no2 = WEBRTC_SPL_ABS_W16(freq_signal[i].imag);
if(tmp16no1 > tmp16no2)
{
if (tmp16no1 > tmp16no2) {
max_value = tmp16no1;
min_value = tmp16no2;
} else
{
} else {
max_value = tmp16no2;
min_value = tmp16no1;
}
// Magnitude in Q(-6)
if ((max_value >> 2) > min_value)
{
if ((max_value >> 2) > min_value) {
alpha = kAlpha1;
beta = kBeta1;
} else if ((max_value >> 1) > min_value)
{
} else if ((max_value >> 1) > min_value) {
alpha = kAlpha2;
beta = kBeta2;
} else
{
} else {
alpha = kAlpha3;
beta = kBeta3;
}
@ -253,24 +234,21 @@ static int TimeToFrequencyDomain(AecmCore* aecm,
#else
#ifdef WEBRTC_ARCH_ARM_V7
__asm __volatile(
"smulbb %[tmp32no1], %[real], %[real]\n\t"
"smlabb %[tmp32no2], %[imag], %[imag], %[tmp32no1]\n\t"
:[tmp32no1]"+&r"(tmp32no1),
[tmp32no2]"=r"(tmp32no2)
:[real]"r"(freq_signal[i].real),
[imag]"r"(freq_signal[i].imag)
);
"smulbb %[tmp32no1], %[real], %[real]\n\t"
"smlabb %[tmp32no2], %[imag], %[imag], %[tmp32no1]\n\t"
: [tmp32no1] "+&r"(tmp32no1), [tmp32no2] "=r"(tmp32no2)
: [real] "r"(freq_signal[i].real), [imag] "r"(freq_signal[i].imag));
#else
tmp16no1 = WEBRTC_SPL_ABS_W16(freq_signal[i].real);
tmp16no2 = WEBRTC_SPL_ABS_W16(freq_signal[i].imag);
tmp32no1 = tmp16no1 * tmp16no1;
tmp32no2 = tmp16no2 * tmp16no2;
tmp32no2 = WebRtcSpl_AddSatW32(tmp32no1, tmp32no2);
#endif // WEBRTC_ARCH_ARM_V7
#endif // WEBRTC_ARCH_ARM_V7
tmp32no1 = WebRtcSpl_SqrtFloor(tmp32no2);
freq_signal_abs[i] = (uint16_t)tmp32no1;
#endif // AECM_WITH_ABS_APPROX
#endif // AECM_WITH_ABS_APPROX
}
(*freq_signal_sum_abs) += (uint32_t)freq_signal_abs[i];
}
@ -279,11 +257,11 @@ static int TimeToFrequencyDomain(AecmCore* aecm,
}
int RTC_NO_SANITIZE("signed-integer-overflow") // bugs.webrtc.org/8200
WebRtcAecm_ProcessBlock(AecmCore* aecm,
const int16_t* farend,
const int16_t* nearendNoisy,
const int16_t* nearendClean,
int16_t* output) {
WebRtcAecm_ProcessBlock(AecmCore* aecm,
const int16_t* farend,
const int16_t* nearendNoisy,
const int16_t* nearendClean,
int16_t* output) {
int i;
uint32_t xfaSum;
@ -302,13 +280,13 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
// 32 byte aligned buffers (with +8 or +16).
// TODO(kma): define fft with ComplexInt16.
int16_t fft_buf[PART_LEN4 + 2 + 16]; // +2 to make a loop safe.
int16_t fft_buf[PART_LEN4 + 2 + 16]; // +2 to make a loop safe.
int32_t echoEst32_buf[PART_LEN1 + 8];
int32_t dfw_buf[PART_LEN2 + 8];
int32_t efw_buf[PART_LEN2 + 8];
int16_t* fft = (int16_t*) (((uintptr_t) fft_buf + 31) & ~ 31);
int32_t* echoEst32 = (int32_t*) (((uintptr_t) echoEst32_buf + 31) & ~ 31);
int16_t* fft = (int16_t*)(((uintptr_t)fft_buf + 31) & ~31);
int32_t* echoEst32 = (int32_t*)(((uintptr_t)echoEst32_buf + 31) & ~31);
ComplexInt16* dfw = (ComplexInt16*)(((uintptr_t)dfw_buf + 31) & ~31);
ComplexInt16* efw = (ComplexInt16*)(((uintptr_t)efw_buf + 31) & ~31);
@ -334,53 +312,37 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
// (1) another CONV_LEN blocks
// (2) the rest
if (aecm->startupState < 2)
{
aecm->startupState = (aecm->totCount >= CONV_LEN) +
(aecm->totCount >= CONV_LEN2);
if (aecm->startupState < 2) {
aecm->startupState =
(aecm->totCount >= CONV_LEN) + (aecm->totCount >= CONV_LEN2);
}
// END: Determine startup state
// Buffer near and far end signals
memcpy(aecm->xBuf + PART_LEN, farend, sizeof(int16_t) * PART_LEN);
memcpy(aecm->dBufNoisy + PART_LEN, nearendNoisy, sizeof(int16_t) * PART_LEN);
if (nearendClean != NULL)
{
memcpy(aecm->dBufClean + PART_LEN,
nearendClean,
if (nearendClean != NULL) {
memcpy(aecm->dBufClean + PART_LEN, nearendClean,
sizeof(int16_t) * PART_LEN);
}
// Transform far end signal from time domain to frequency domain.
far_q = TimeToFrequencyDomain(aecm,
aecm->xBuf,
dfw,
xfa,
&xfaSum);
far_q = TimeToFrequencyDomain(aecm, aecm->xBuf, dfw, xfa, &xfaSum);
// Transform noisy near end signal from time domain to frequency domain.
zerosDBufNoisy = TimeToFrequencyDomain(aecm,
aecm->dBufNoisy,
dfw,
dfaNoisy,
&dfaNoisySum);
zerosDBufNoisy =
TimeToFrequencyDomain(aecm, aecm->dBufNoisy, dfw, dfaNoisy, &dfaNoisySum);
aecm->dfaNoisyQDomainOld = aecm->dfaNoisyQDomain;
aecm->dfaNoisyQDomain = (int16_t)zerosDBufNoisy;
if (nearendClean == NULL)
{
if (nearendClean == NULL) {
ptrDfaClean = dfaNoisy;
aecm->dfaCleanQDomainOld = aecm->dfaNoisyQDomainOld;
aecm->dfaCleanQDomain = aecm->dfaNoisyQDomain;
dfaCleanSum = dfaNoisySum;
} else
{
} else {
// Transform clean near end signal from time domain to frequency domain.
zerosDBufClean = TimeToFrequencyDomain(aecm,
aecm->dBufClean,
dfw,
dfaClean,
zerosDBufClean = TimeToFrequencyDomain(aecm, aecm->dBufClean, dfw, dfaClean,
&dfaCleanSum);
aecm->dfaCleanQDomainOld = aecm->dfaCleanQDomain;
aecm->dfaCleanQDomain = (int16_t)zerosDBufClean;
@ -389,46 +351,34 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
// Get the delay
// Save far-end history and estimate delay
WebRtcAecm_UpdateFarHistory(aecm, xfa, far_q);
if (WebRtc_AddFarSpectrumFix(aecm->delay_estimator_farend,
xfa,
PART_LEN1,
if (WebRtc_AddFarSpectrumFix(aecm->delay_estimator_farend, xfa, PART_LEN1,
far_q) == -1) {
return -1;
}
delay = WebRtc_DelayEstimatorProcessFix(aecm->delay_estimator,
dfaNoisy,
PART_LEN1,
zerosDBufNoisy);
if (delay == -1)
{
delay = WebRtc_DelayEstimatorProcessFix(aecm->delay_estimator, dfaNoisy,
PART_LEN1, zerosDBufNoisy);
if (delay == -1) {
return -1;
}
else if (delay == -2)
{
} else if (delay == -2) {
// If the delay is unknown, we assume zero.
// NOTE: this will have to be adjusted if we ever add lookahead.
delay = 0;
}
if (aecm->fixedDelay >= 0)
{
if (aecm->fixedDelay >= 0) {
// Use fixed delay
delay = aecm->fixedDelay;
}
// Get aligned far end spectrum
far_spectrum_ptr = WebRtcAecm_AlignedFarend(aecm, &far_q, delay);
zerosXBuf = (int16_t) far_q;
if (far_spectrum_ptr == NULL)
{
zerosXBuf = (int16_t)far_q;
if (far_spectrum_ptr == NULL) {
return -1;
}
// Calculate log(energy) and update energy threshold levels
WebRtcAecm_CalcEnergies(aecm,
far_spectrum_ptr,
zerosXBuf,
dfaNoisySum,
WebRtcAecm_CalcEnergies(aecm, far_spectrum_ptr, zerosXBuf, dfaNoisySum,
echoEst32);
// Calculate stepsize
@ -440,18 +390,12 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
// This is the channel estimation algorithm.
// It is base on NLMS but has a variable step length,
// which was calculated above.
WebRtcAecm_UpdateChannel(aecm,
far_spectrum_ptr,
zerosXBuf,
dfaNoisy,
mu,
WebRtcAecm_UpdateChannel(aecm, far_spectrum_ptr, zerosXBuf, dfaNoisy, mu,
echoEst32);
supGain = WebRtcAecm_CalcSuppressionGain(aecm);
// Calculate Wiener filter hnl[]
for (i = 0; i < PART_LEN1; i++)
{
for (i = 0; i < PART_LEN1; i++) {
// Far end signal through channel estimate in Q8
// How much can we shift right to preserve resolution
tmp32no1 = echoEst32[i] - aecm->echoFilt[i];
@ -460,28 +404,24 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
zeros32 = WebRtcSpl_NormW32(aecm->echoFilt[i]) + 1;
zeros16 = WebRtcSpl_NormW16(supGain) + 1;
if (zeros32 + zeros16 > 16)
{
if (zeros32 + zeros16 > 16) {
// Multiplication is safe
// Result in
// Q(RESOLUTION_CHANNEL+RESOLUTION_SUPGAIN+
// aecm->xfaQDomainBuf[diff])
echoEst32Gained = WEBRTC_SPL_UMUL_32_16((uint32_t)aecm->echoFilt[i],
(uint16_t)supGain);
echoEst32Gained =
WEBRTC_SPL_UMUL_32_16((uint32_t)aecm->echoFilt[i], (uint16_t)supGain);
resolutionDiff = 14 - RESOLUTION_CHANNEL16 - RESOLUTION_SUPGAIN;
resolutionDiff += (aecm->dfaCleanQDomain - zerosXBuf);
} else
{
} else {
tmp16no1 = 17 - zeros32 - zeros16;
resolutionDiff = 14 + tmp16no1 - RESOLUTION_CHANNEL16 -
RESOLUTION_SUPGAIN;
resolutionDiff =
14 + tmp16no1 - RESOLUTION_CHANNEL16 - RESOLUTION_SUPGAIN;
resolutionDiff += (aecm->dfaCleanQDomain - zerosXBuf);
if (zeros32 > tmp16no1)
{
if (zeros32 > tmp16no1) {
echoEst32Gained = WEBRTC_SPL_UMUL_32_16((uint32_t)aecm->echoFilt[i],
supGain >> tmp16no1);
} else
{
} else {
// Result in Q-(RESOLUTION_CHANNEL+RESOLUTION_SUPGAIN-16)
echoEst32Gained = (aecm->echoFilt[i] >> tmp16no1) * supGain;
}
@ -513,125 +453,100 @@ WebRtcAecm_ProcessBlock(AecmCore* aecm,
}
// Wiener filter coefficients, resulting hnl in Q14
if (echoEst32Gained == 0)
{
if (echoEst32Gained == 0) {
hnl[i] = ONE_Q14;
} else if (aecm->nearFilt[i] == 0)
{
} else if (aecm->nearFilt[i] == 0) {
hnl[i] = 0;
} else
{
} else {
// Multiply the suppression gain
// Rounding
echoEst32Gained += (uint32_t)(aecm->nearFilt[i] >> 1);
tmpU32 = WebRtcSpl_DivU32U16(echoEst32Gained,
(uint16_t)aecm->nearFilt[i]);
tmpU32 =
WebRtcSpl_DivU32U16(echoEst32Gained, (uint16_t)aecm->nearFilt[i]);
// Current resolution is
// Q-(RESOLUTION_CHANNEL+RESOLUTION_SUPGAIN- max(0,17-zeros16- zeros32))
// Make sure we are in Q14
tmp32no1 = (int32_t)WEBRTC_SPL_SHIFT_W32(tmpU32, resolutionDiff);
if (tmp32no1 > ONE_Q14)
{
if (tmp32no1 > ONE_Q14) {
hnl[i] = 0;
} else if (tmp32no1 < 0)
{
} else if (tmp32no1 < 0) {
hnl[i] = ONE_Q14;
} else
{
} else {
// 1-echoEst/dfa
hnl[i] = ONE_Q14 - (int16_t)tmp32no1;
if (hnl[i] < 0)
{
if (hnl[i] < 0) {
hnl[i] = 0;
}
}
}
if (hnl[i])
{
if (hnl[i]) {
numPosCoef++;
}
}
// Only in wideband. Prevent the gain in upper band from being larger than
// in lower band.
if (aecm->mult == 2)
{
if (aecm->mult == 2) {
// TODO(bjornv): Investigate if the scaling of hnl[i] below can cause
// speech distortion in double-talk.
for (i = 0; i < PART_LEN1; i++)
{
for (i = 0; i < PART_LEN1; i++) {
hnl[i] = (int16_t)((hnl[i] * hnl[i]) >> 14);
}
for (i = kMinPrefBand; i <= kMaxPrefBand; i++)
{
for (i = kMinPrefBand; i <= kMaxPrefBand; i++) {
avgHnl32 += (int32_t)hnl[i];
}
RTC_DCHECK_GT(kMaxPrefBand - kMinPrefBand + 1, 0);
avgHnl32 /= (kMaxPrefBand - kMinPrefBand + 1);
for (i = kMaxPrefBand; i < PART_LEN1; i++)
{
if (hnl[i] > (int16_t)avgHnl32)
{
for (i = kMaxPrefBand; i < PART_LEN1; i++) {
if (hnl[i] > (int16_t)avgHnl32) {
hnl[i] = (int16_t)avgHnl32;
}
}
}
// Calculate NLP gain, result is in Q14
if (aecm->nlpFlag)
{
for (i = 0; i < PART_LEN1; i++)
{
if (aecm->nlpFlag) {
for (i = 0; i < PART_LEN1; i++) {
// Truncate values close to zero and one.
if (hnl[i] > NLP_COMP_HIGH)
{
if (hnl[i] > NLP_COMP_HIGH) {
hnl[i] = ONE_Q14;
} else if (hnl[i] < NLP_COMP_LOW)
{
} else if (hnl[i] < NLP_COMP_LOW) {
hnl[i] = 0;
}
// Remove outliers
if (numPosCoef < 3)
{
if (numPosCoef < 3) {
nlpGain = 0;
} else
{
} else {
nlpGain = ONE_Q14;
}
// NLP
if ((hnl[i] == ONE_Q14) && (nlpGain == ONE_Q14))
{
if ((hnl[i] == ONE_Q14) && (nlpGain == ONE_Q14)) {
hnl[i] = ONE_Q14;
} else
{
} else {
hnl[i] = (int16_t)((hnl[i] * nlpGain) >> 14);
}
// multiply with Wiener coefficients
efw[i].real = (int16_t)(WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].real,
hnl[i], 14));
efw[i].imag = (int16_t)(WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].imag,
hnl[i], 14));
efw[i].real = (int16_t)(
WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].real, hnl[i], 14));
efw[i].imag = (int16_t)(
WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].imag, hnl[i], 14));
}
}
else
{
} else {
// multiply with Wiener coefficients
for (i = 0; i < PART_LEN1; i++)
{
efw[i].real = (int16_t)(WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].real,
hnl[i], 14));
efw[i].imag = (int16_t)(WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].imag,
hnl[i], 14));
for (i = 0; i < PART_LEN1; i++) {
efw[i].real = (int16_t)(
WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].real, hnl[i], 14));
efw[i].imag = (int16_t)(
WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(dfw[i].imag, hnl[i], 14));
}
}
if (aecm->cngMode == AecmTrue)
{
if (aecm->cngMode == AecmTrue) {
ComfortNoise(aecm, ptrDfaClean, efw, hnl);
}
@ -660,83 +575,66 @@ static void ComfortNoise(AecmCore* aecm,
RTC_DCHECK_GE(shiftFromNearToNoise, 0);
RTC_DCHECK_LT(shiftFromNearToNoise, 16);
if (aecm->noiseEstCtr < 100)
{
if (aecm->noiseEstCtr < 100) {
// Track the minimum more quickly initially.
aecm->noiseEstCtr++;
minTrackShift = 6;
} else
{
} else {
minTrackShift = 9;
}
// Estimate noise power.
for (i = 0; i < PART_LEN1; i++)
{
for (i = 0; i < PART_LEN1; i++) {
// Shift to the noise domain.
tmp32 = (int32_t)dfa[i];
outLShift32 = tmp32 << shiftFromNearToNoise;
if (outLShift32 < aecm->noiseEst[i])
{
if (outLShift32 < aecm->noiseEst[i]) {
// Reset "too low" counter
aecm->noiseEstTooLowCtr[i] = 0;
// Track the minimum.
if (aecm->noiseEst[i] < (1 << minTrackShift))
{
if (aecm->noiseEst[i] < (1 << minTrackShift)) {
// For small values, decrease noiseEst[i] every
// |kNoiseEstIncCount| block. The regular approach below can not
// go further down due to truncation.
aecm->noiseEstTooHighCtr[i]++;
if (aecm->noiseEstTooHighCtr[i] >= kNoiseEstIncCount)
{
if (aecm->noiseEstTooHighCtr[i] >= kNoiseEstIncCount) {
aecm->noiseEst[i]--;
aecm->noiseEstTooHighCtr[i] = 0; // Reset the counter
aecm->noiseEstTooHighCtr[i] = 0; // Reset the counter
}
} else {
aecm->noiseEst[i] -=
((aecm->noiseEst[i] - outLShift32) >> minTrackShift);
}
else
{
aecm->noiseEst[i] -= ((aecm->noiseEst[i] - outLShift32)
>> minTrackShift);
}
} else
{
} else {
// Reset "too high" counter
aecm->noiseEstTooHighCtr[i] = 0;
// Ramp slowly upwards until we hit the minimum again.
if ((aecm->noiseEst[i] >> 19) > 0)
{
if ((aecm->noiseEst[i] >> 19) > 0) {
// Avoid overflow.
// Multiplication with 2049 will cause wrap around. Scale
// down first and then multiply
aecm->noiseEst[i] >>= 11;
aecm->noiseEst[i] *= 2049;
}
else if ((aecm->noiseEst[i] >> 11) > 0)
{
} else if ((aecm->noiseEst[i] >> 11) > 0) {
// Large enough for relative increase
aecm->noiseEst[i] *= 2049;
aecm->noiseEst[i] >>= 11;
}
else
{
} else {
// Make incremental increases based on size every
// |kNoiseEstIncCount| block
aecm->noiseEstTooLowCtr[i]++;
if (aecm->noiseEstTooLowCtr[i] >= kNoiseEstIncCount)
{
if (aecm->noiseEstTooLowCtr[i] >= kNoiseEstIncCount) {
aecm->noiseEst[i] += (aecm->noiseEst[i] >> 9) + 1;
aecm->noiseEstTooLowCtr[i] = 0; // Reset counter
aecm->noiseEstTooLowCtr[i] = 0; // Reset counter
}
}
}
}
for (i = 0; i < PART_LEN1; i++)
{
for (i = 0; i < PART_LEN1; i++) {
tmp32 = aecm->noiseEst[i] >> shiftFromNearToNoise;
if (tmp32 > 32767)
{
if (tmp32 > 32767) {
tmp32 = 32767;
aecm->noiseEst[i] = tmp32 << shiftFromNearToNoise;
}
@ -750,23 +648,21 @@ static void ComfortNoise(AecmCore* aecm,
WebRtcSpl_RandUArray(randW16, PART_LEN, &aecm->seed);
// Generate noise according to estimated energy.
uReal[0] = 0; // Reject LF noise.
uReal[0] = 0; // Reject LF noise.
uImag[0] = 0;
for (i = 1; i < PART_LEN1; i++)
{
for (i = 1; i < PART_LEN1; i++) {
// Get a random index for the cos and sin tables over [0 359].
tmp16 = (int16_t)((359 * randW16[i - 1]) >> 15);
// Tables are in Q13.
uReal[i] = (int16_t)((noiseRShift16[i] * WebRtcAecm_kCosTable[tmp16]) >>
13);
uImag[i] = (int16_t)((-noiseRShift16[i] * WebRtcAecm_kSinTable[tmp16]) >>
13);
uReal[i] =
(int16_t)((noiseRShift16[i] * WebRtcAecm_kCosTable[tmp16]) >> 13);
uImag[i] =
(int16_t)((-noiseRShift16[i] * WebRtcAecm_kSinTable[tmp16]) >> 13);
}
uImag[PART_LEN] = 0;
for (i = 0; i < PART_LEN1; i++)
{
for (i = 0; i < PART_LEN1; i++) {
out[i].real = WebRtcSpl_AddSatW16(out[i].real, uReal[i]);
out[i].imag = WebRtcSpl_AddSatW16(out[i].imag, uImag[i]);
}

1837
modules/audio_processing/aecm/aecm_core_mips.cc
View File

File diff suppressed because it is too large Load Diff

12
modules/audio_processing/aecm/aecm_core_neon.cc
View File

@ -77,12 +77,12 @@ void WebRtcAecm_CalcLinearEnergiesNeon(AecmCore* aecm,
echo_stored_v = vaddq_u32(echo_est_v_low, echo_stored_v);
echo_stored_v = vaddq_u32(echo_est_v_high, echo_stored_v);
echo_adapt_v = vmlal_u16(echo_adapt_v,
vreinterpret_u16_s16(vget_low_s16(adapt_v)),
vget_low_u16(spectrum_v));
echo_adapt_v = vmlal_u16(echo_adapt_v,
vreinterpret_u16_s16(vget_high_s16(adapt_v)),
vget_high_u16(spectrum_v));
echo_adapt_v =
vmlal_u16(echo_adapt_v, vreinterpret_u16_s16(vget_low_s16(adapt_v)),
vget_low_u16(spectrum_v));
echo_adapt_v =
vmlal_u16(echo_adapt_v, vreinterpret_u16_s16(vget_high_s16(adapt_v)),
vget_high_u16(spectrum_v));
start_stored_p += 8;
start_adapt_p += 8;

104
modules/audio_processing/aecm/aecm_defines.h
View File

@ -11,77 +11,77 @@
#ifndef MODULES_AUDIO_PROCESSING_AECM_AECM_DEFINES_H_
#define MODULES_AUDIO_PROCESSING_AECM_AECM_DEFINES_H_
#define AECM_DYNAMIC_Q /* Turn on/off dynamic Q-domain. */
#define AECM_DYNAMIC_Q /* Turn on/off dynamic Q-domain. */
/* Algorithm parameters */
#define FRAME_LEN 80 /* Total frame length, 10 ms. */
#define FRAME_LEN 80 /* Total frame length, 10 ms. */
#define PART_LEN 64 /* Length of partition. */
#define PART_LEN_SHIFT 7 /* Length of (PART_LEN * 2) in base 2. */
#define PART_LEN 64 /* Length of partition. */
#define PART_LEN_SHIFT 7 /* Length of (PART_LEN * 2) in base 2. */
#define PART_LEN1 (PART_LEN + 1) /* Unique fft coefficients. */
#define PART_LEN2 (PART_LEN << 1) /* Length of partition * 2. */
#define PART_LEN4 (PART_LEN << 2) /* Length of partition * 4. */
#define FAR_BUF_LEN PART_LEN4 /* Length of buffers. */
#define MAX_DELAY 100
#define PART_LEN1 (PART_LEN + 1) /* Unique fft coefficients. */
#define PART_LEN2 (PART_LEN << 1) /* Length of partition * 2. */
#define PART_LEN4 (PART_LEN << 2) /* Length of partition * 4. */
#define FAR_BUF_LEN PART_LEN4 /* Length of buffers. */
#define MAX_DELAY 100
/* Counter parameters */
#define CONV_LEN 512 /* Convergence length used at startup. */
#define CONV_LEN2 (CONV_LEN << 1) /* Used at startup. */
#define CONV_LEN 512 /* Convergence length used at startup. */
#define CONV_LEN2 (CONV_LEN << 1) /* Used at startup. */
/* Energy parameters */
#define MAX_BUF_LEN 64 /* History length of energy signals. */
#define FAR_ENERGY_MIN 1025 /* Lowest Far energy level: At least 2 */
/* in energy. */
#define FAR_ENERGY_DIFF 929 /* Allowed difference between max */
/* and min. */
#define ENERGY_DEV_OFFSET 0 /* The energy error offset in Q8. */
#define ENERGY_DEV_TOL 400 /* The energy estimation tolerance (Q8). */
#define FAR_ENERGY_VAD_REGION 230 /* Far VAD tolerance region. */
#define MAX_BUF_LEN 64 /* History length of energy signals. */
#define FAR_ENERGY_MIN 1025 /* Lowest Far energy level: At least 2 */
/* in energy. */
#define FAR_ENERGY_DIFF 929 /* Allowed difference between max */
/* and min. */
#define ENERGY_DEV_OFFSET 0 /* The energy error offset in Q8. */
#define ENERGY_DEV_TOL 400 /* The energy estimation tolerance (Q8). */
#define FAR_ENERGY_VAD_REGION 230 /* Far VAD tolerance region. */
/* Stepsize parameters */
#define MU_MIN 10 /* Min stepsize 2^-MU_MIN (far end energy */
/* dependent). */
#define MU_MAX 1 /* Max stepsize 2^-MU_MAX (far end energy */
/* dependent). */
#define MU_DIFF 9 /* MU_MIN - MU_MAX */
#define MU_MIN 10 /* Min stepsize 2^-MU_MIN (far end energy */
/* dependent). */
#define MU_MAX 1 /* Max stepsize 2^-MU_MAX (far end energy */
/* dependent). */
#define MU_DIFF 9 /* MU_MIN - MU_MAX */
/* Channel parameters */
#define MIN_MSE_COUNT 20 /* Min number of consecutive blocks with enough */
/* far end energy to compare channel estimates. */
#define MIN_MSE_DIFF 29 /* The ratio between adapted and stored channel to */
/* accept a new storage (0.8 in Q-MSE_RESOLUTION). */
#define MSE_RESOLUTION 5 /* MSE parameter resolution. */
#define RESOLUTION_CHANNEL16 12 /* W16 Channel in Q-RESOLUTION_CHANNEL16. */
#define RESOLUTION_CHANNEL32 28 /* W32 Channel in Q-RESOLUTION_CHANNEL. */
#define CHANNEL_VAD 16 /* Minimum energy in frequency band */
/* to update channel. */
#define MIN_MSE_COUNT 20 /* Min number of consecutive blocks with enough */
/* far end energy to compare channel estimates. */
#define MIN_MSE_DIFF 29 /* The ratio between adapted and stored channel to */
/* accept a new storage (0.8 in Q-MSE_RESOLUTION). */
#define MSE_RESOLUTION 5 /* MSE parameter resolution. */
#define RESOLUTION_CHANNEL16 12 /* W16 Channel in Q-RESOLUTION_CHANNEL16. */
#define RESOLUTION_CHANNEL32 28 /* W32 Channel in Q-RESOLUTION_CHANNEL. */
#define CHANNEL_VAD 16 /* Minimum energy in frequency band */
/* to update channel. */
/* Suppression gain parameters: SUPGAIN parameters in Q-(RESOLUTION_SUPGAIN). */
#define RESOLUTION_SUPGAIN 8 /* Channel in Q-(RESOLUTION_SUPGAIN). */
#define SUPGAIN_DEFAULT (1 << RESOLUTION_SUPGAIN) /* Default. */
#define SUPGAIN_ERROR_PARAM_A 3072 /* Estimation error parameter */
/* (Maximum gain) (8 in Q8). */
#define SUPGAIN_ERROR_PARAM_B 1536 /* Estimation error parameter */
/* (Gain before going down). */
#define SUPGAIN_ERROR_PARAM_D SUPGAIN_DEFAULT /* Estimation error parameter */
/* (Should be the same as Default) (1 in Q8). */
#define SUPGAIN_EPC_DT 200 /* SUPGAIN_ERROR_PARAM_C * ENERGY_DEV_TOL */
#define RESOLUTION_SUPGAIN 8 /* Channel in Q-(RESOLUTION_SUPGAIN). */
#define SUPGAIN_DEFAULT (1 << RESOLUTION_SUPGAIN) /* Default. */
#define SUPGAIN_ERROR_PARAM_A 3072 /* Estimation error parameter */
/* (Maximum gain) (8 in Q8). */
#define SUPGAIN_ERROR_PARAM_B 1536 /* Estimation error parameter */
/* (Gain before going down). */
#define SUPGAIN_ERROR_PARAM_D SUPGAIN_DEFAULT /* Estimation error parameter */
/* (Should be the same as Default) (1 in Q8). */
#define SUPGAIN_EPC_DT 200 /* SUPGAIN_ERROR_PARAM_C * ENERGY_DEV_TOL */
/* Defines for "check delay estimation" */
#define CORR_WIDTH 31 /* Number of samples to correlate over. */
#define CORR_MAX 16 /* Maximum correlation offset. */
#define CORR_MAX_BUF 63
#define CORR_DEV 4
#define CORR_MAX_LEVEL 20
#define CORR_MAX_LOW 4
#define CORR_BUF_LEN (CORR_MAX << 1) + 1
#define CORR_WIDTH 31 /* Number of samples to correlate over. */
#define CORR_MAX 16 /* Maximum correlation offset. */
#define CORR_MAX_BUF 63
#define CORR_DEV 4
#define CORR_MAX_LEVEL 20
#define CORR_MAX_LOW 4
#define CORR_BUF_LEN (CORR_MAX << 1) + 1
/* Note that CORR_WIDTH + 2*CORR_MAX <= MAX_BUF_LEN. */
#define ONE_Q14 (1 << 14)
#define ONE_Q14 (1 << 14)
/* NLP defines */
#define NLP_COMP_LOW 3277 /* 0.2 in Q14 */
#define NLP_COMP_HIGH ONE_Q14 /* 1 in Q14 */
#define NLP_COMP_LOW 3277 /* 0.2 in Q14 */
#define NLP_COMP_HIGH ONE_Q14 /* 1 in Q14 */
#endif

908
modules/audio_processing/aecm/echo_control_mobile.cc
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File diff suppressed because it is too large Load Diff

22
modules/audio_processing/aecm/echo_control_mobile.h
View File

@ -15,24 +15,21 @@
#include "typedefs.h" // NOLINT(build/include)
enum {
AecmFalse = 0,
AecmTrue
};
enum { AecmFalse = 0, AecmTrue };
// Errors
#define AECM_UNSPECIFIED_ERROR 12000
#define AECM_UNSUPPORTED_FUNCTION_ERROR 12001
#define AECM_UNINITIALIZED_ERROR 12002
#define AECM_NULL_POINTER_ERROR 12003
#define AECM_BAD_PARAMETER_ERROR 12004
#define AECM_UNSPECIFIED_ERROR 12000
#define AECM_UNSUPPORTED_FUNCTION_ERROR 12001
#define AECM_UNINITIALIZED_ERROR 12002
#define AECM_NULL_POINTER_ERROR 12003
#define AECM_BAD_PARAMETER_ERROR 12004
// Warnings
#define AECM_BAD_PARAMETER_WARNING 12100
#define AECM_BAD_PARAMETER_WARNING 12100
typedef struct {
int16_t cngMode; // AECM_FALSE, AECM_TRUE (default)
int16_t echoMode; // 0, 1, 2, 3 (default), 4
int16_t cngMode; // AECM_FALSE, AECM_TRUE (default)
int16_t echoMode; // 0, 1, 2, 3 (default), 4
} AecmConfig;
#ifdef __cplusplus
@ -202,7 +199,6 @@ int32_t WebRtcAecm_GetEchoPath(void* aecmInst,
*/
size_t WebRtcAecm_echo_path_size_bytes();
#ifdef __cplusplus
}
#endif