mirror of
https://github.com/oxen-io/session-android.git
synced 2024-11-25 02:55:23 +00:00
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree. An additional intellectual property rights grant can be found
|
||
|
|
* in the file PATENTS. All contributing project authors may
|
||
|
|
* be found in the AUTHORS file in the root of the source tree.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "webrtc/modules/audio_coding/main/acm2/acm_resampler.h"
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "webrtc/common_audio/resampler/include/resampler.h"
|
||
|
|
#include "webrtc/system_wrappers/interface/logging.h"
|
||
|
|
|
||
|
|
namespace webrtc {
|
||
|
|
namespace acm2 {
|
||
|
|
|
||
|
|
ACMResampler::ACMResampler() {
|
||
|
|
}
|
||
|
|
|
||
|
|
ACMResampler::~ACMResampler() {
|
||
|
|
}
|
||
|
|
|
||
|
|
int ACMResampler::Resample10Msec(const int16_t* in_audio,
|
||
|
|
int in_freq_hz,
|
||
|
|
int out_freq_hz,
|
||
|
|
int num_audio_channels,
|
||
|
|
int out_capacity_samples,
|
||
|
|
int16_t* out_audio) {
|
||
|
|
int in_length = in_freq_hz * num_audio_channels / 100;
|
||
|
|
int out_length = out_freq_hz * num_audio_channels / 100;
|
||
|
|
if (in_freq_hz == out_freq_hz) {
|
||
|
|
if (out_capacity_samples < in_length) {
|
||
|
|
assert(false);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
memcpy(out_audio, in_audio, in_length * sizeof(int16_t));
|
||
|
|
return in_length / num_audio_channels;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (resampler_.InitializeIfNeeded(in_freq_hz, out_freq_hz,
|
||
|
|
num_audio_channels) != 0) {
|
||
|
|
LOG_FERR3(LS_ERROR, InitializeIfNeeded, in_freq_hz, out_freq_hz,
|
||
|
|
num_audio_channels);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
out_length =
|
||
|
|
resampler_.Resample(in_audio, in_length, out_audio, out_capacity_samples);
|
||
|
|
if (out_length == -1) {
|
||
|
|
LOG_FERR4(LS_ERROR,
|
||
|
|
Resample,
|
||
|
|
in_audio,
|
||
|
|
in_length,
|
||
|
|
out_audio,
|
||
|
|
out_capacity_samples);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return out_length / num_audio_channels;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace acm2
|
||
|
|
} // namespace webrtc
|