AnotherFoxGuy/webrtc-audio-processing
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Bump to WebRTC M120 release

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Some API deprecation -- ExperimentalAgc and ExperimentalNs are gone.
We're continuing to carry iSAC even though it's gone upstream, but maybe
we'll want to drop that soon.
This commit is contained in:
Arun Raghavan
2023-12-12 10:42:58 -05:00
parent 9a202fb8c2
commit c6abf6cd3f
479 changed files with 20900 additions and 11996 deletions
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2
webrtc/modules/audio_coding/codecs/isac/main/source/filter_functions.h
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@@ -11,6 +11,8 @@
#ifndef MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_FILTER_FUNCTIONS_H_
#define MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_FILTER_FUNCTIONS_H_
#include <stddef.h>
#include "modules/audio_coding/codecs/isac/main/source/structs.h"
void WebRtcIsac_AutoCorr(double* r, const double* x, size_t N, size_t order);

16
webrtc/modules/audio_coding/codecs/isac/main/source/pitch_filter.c
View File

@@ -25,8 +25,8 @@
* Post-filtering:
* y(z) = x(z) - damper(z) * gain * (x(z) + y(z)) * z ^ (-lag);
*
* Note that |lag| is a floating number so we perform an interpolation to
* obtain the correct |lag|.
* Note that `lag` is a floating number so we perform an interpolation to
* obtain the correct `lag`.
*
*/
@@ -86,7 +86,7 @@ typedef enum {
* buffer : a buffer where the sum of previous inputs and outputs
* are stored.
* damper_state : the state of the damping filter. The filter is defined by
* |kDampFilter|.
* `kDampFilter`.
* interpol_coeff : pointer to a set of coefficient which are used to utilize
* fractional pitch by interpolation.
* gain : pitch-gain to be applied to the current segment of input.
@@ -140,9 +140,9 @@ static void FilterSegment(const double* in_data, PitchFilterParam* parameters,
int j;
double sum;
double sum2;
/* Index of |parameters->buffer| where the output is written to. */
/* Index of `parameters->buffer` where the output is written to. */
int pos = parameters->index + PITCH_BUFFSIZE;
/* Index of |parameters->buffer| where samples are read for fractional-lag
/* Index of `parameters->buffer` where samples are read for fractional-lag
* computation. */
int pos_lag = pos - parameters->lag_offset;
@@ -174,9 +174,9 @@ static void FilterSegment(const double* in_data, PitchFilterParam* parameters,
/* Filter for fractional pitch. */
sum2 = 0.0;
for (m = PITCH_FRACORDER-1; m >= m_tmp; --m) {
/* |lag_index + m| is always larger than or equal to zero, see how
/* `lag_index + m` is always larger than or equal to zero, see how
* m_tmp is computed. This is equivalent to assume samples outside
* |out_dg[j]| are zero. */
* `out_dg[j]` are zero. */
sum2 += out_dg[j][lag_index + m] * parameters->interpol_coeff[m];
}
/* Add the contribution of differential gain change. */
@@ -353,7 +353,7 @@ static void FilterFrame(const double* in_data, PitchFiltstr* filter_state,
if ((mode == kPitchFilterPreGain) || (mode == kPitchFilterPreLa)) {
/* Filter the lookahead segment, this is treated as the last sub-frame. So
* set |pf_param| to last sub-frame. */
* set `pf_param` to last sub-frame. */
filter_parameters.sub_frame = PITCH_SUBFRAMES - 1;
filter_parameters.num_samples = QLOOKAHEAD;
FilterSegment(in_data, &filter_parameters, out_data, out_dg);