e36e8bbf6d
The FixedGainController (FGC) applies a fixed gain. It will also control the limiter. The limiter will be landed over the next several CLs. The GainController2 is a 'private submodule' of APM. It will control the new automatic gain controller (AGC). It controls the AGC through Initialize() and ApplyConfig(). This CL contains * build changes to make modules/audio_processing/agc2 an independent target * a new MutableFloatAudioFrame which is the audio interface between AGC2 and APM * move of the fixed gain application from GainController2 to FixedGainController. If you are a googler, there is more information in this doc: https://docs.google.com/document/d/1RV2Doet3MZtUPAHVva61Vjo20iyd1bmmm3aR8znWpzo/edit# Bug: webrtc:7949 Change-Id: Ief95cbbce83c3aafe54638fd2ab881c9fb8bdc3a Reviewed-on: https://webrtc-review.googlesource.com/50440 Commit-Queue: Alex Loiko <aleloi@webrtc.org> Reviewed-by: Oskar Sundbom <ossu@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22046}
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
|
|
* Copyright (c) 2018 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.
|
|
*/
|
|
|
|
#ifndef MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_FRAME_VIEW_H_
|
|
#define MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_FRAME_VIEW_H_
|
|
|
|
#include "api/array_view.h"
|
|
|
|
// Class to pass audio data in T** format, where T is a numeric type.
|
|
template <class T>
|
|
class AudioFrameView {
|
|
public:
|
|
// |num_channels| and |channel_size| describe the T**
|
|
// |audio_samples|. |audio_samples| is assumed to point to a
|
|
// two-dimensional |num_channels * channel_size| array of floats.
|
|
AudioFrameView(T* const* audio_samples,
|
|
size_t num_channels,
|
|
size_t channel_size)
|
|
: audio_samples_(audio_samples),
|
|
num_channels_(num_channels),
|
|
channel_size_(channel_size) {}
|
|
|
|
AudioFrameView() = delete;
|
|
|
|
size_t num_channels() const { return num_channels_; }
|
|
|
|
size_t samples_per_channel() const { return channel_size_; }
|
|
|
|
rtc::ArrayView<T> channel(size_t idx) {
|
|
RTC_DCHECK_LE(0, idx);
|
|
RTC_DCHECK_LE(idx, num_channels_);
|
|
return rtc::ArrayView<T>(audio_samples_[idx], channel_size_);
|
|
}
|
|
|
|
rtc::ArrayView<const T> channel(size_t idx) const {
|
|
RTC_DCHECK_LE(0, idx);
|
|
RTC_DCHECK_LE(idx, num_channels_);
|
|
return rtc::ArrayView<const T>(audio_samples_[idx], channel_size_);
|
|
}
|
|
|
|
private:
|
|
T* const* audio_samples_;
|
|
size_t num_channels_;
|
|
size_t channel_size_;
|
|
};
|
|
|
|
#endif // MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_FRAME_VIEW_H_
|