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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}
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_processing/agc2/vector_float_frame.h"
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namespace webrtc {
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namespace {
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std::vector<float*> ConstructChannelPointers(
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std::vector<std::vector<float>>* x) {
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std::vector<float*> channel_ptrs;
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for (auto& v : *x) {
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channel_ptrs.push_back(v.data());
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}
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return channel_ptrs;
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}
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} // namespace
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VectorFloatFrame::VectorFloatFrame(int num_channels,
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int samples_per_channel,
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float start_value)
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: channels_(num_channels,
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std::vector<float>(samples_per_channel, start_value)),
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channel_ptrs_(ConstructChannelPointers(&channels_)),
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float_frame_view_(channel_ptrs_.data(),
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channels_.size(),
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samples_per_channel) {}
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VectorFloatFrame::~VectorFloatFrame() = default;
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} // namespace webrtc
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