753eada3aa
Corresponds to upstream commit 524e9b043e7e86fd72353b987c9d5f6a1ebf83e1 Update notes: * Pull in third party license file * Replace .gypi files with BUILD.gn to keep track of what changes upstream * Bunch of new filse pulled in as dependencies * Won't build yet due to changes needed on top of these
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/*
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* Copyright (c) 2012 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 "webrtc/modules/audio_processing/level_estimator_impl.h"
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#include "webrtc/modules/audio_processing/audio_buffer.h"
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#include "webrtc/modules/audio_processing/include/audio_processing.h"
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#include "webrtc/modules/audio_processing/rms_level.h"
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#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
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namespace webrtc {
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LevelEstimatorImpl::LevelEstimatorImpl(const AudioProcessing* apm,
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CriticalSectionWrapper* crit)
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: ProcessingComponent(),
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crit_(crit) {}
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LevelEstimatorImpl::~LevelEstimatorImpl() {}
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int LevelEstimatorImpl::ProcessStream(AudioBuffer* audio) {
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if (!is_component_enabled()) {
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return AudioProcessing::kNoError;
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}
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RMSLevel* rms_level = static_cast<RMSLevel*>(handle(0));
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for (int i = 0; i < audio->num_channels(); ++i) {
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rms_level->Process(audio->channels_const()[i],
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audio->num_frames());
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}
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return AudioProcessing::kNoError;
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}
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int LevelEstimatorImpl::Enable(bool enable) {
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CriticalSectionScoped crit_scoped(crit_);
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return EnableComponent(enable);
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}
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bool LevelEstimatorImpl::is_enabled() const {
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return is_component_enabled();
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}
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int LevelEstimatorImpl::RMS() {
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if (!is_component_enabled()) {
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return AudioProcessing::kNotEnabledError;
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}
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RMSLevel* rms_level = static_cast<RMSLevel*>(handle(0));
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return rms_level->RMS();
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}
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// The ProcessingComponent implementation is pretty weird in this class since
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// we have only a single instance of the trivial underlying component.
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void* LevelEstimatorImpl::CreateHandle() const {
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return new RMSLevel;
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}
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void LevelEstimatorImpl::DestroyHandle(void* handle) const {
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delete static_cast<RMSLevel*>(handle);
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}
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int LevelEstimatorImpl::InitializeHandle(void* handle) const {
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static_cast<RMSLevel*>(handle)->Reset();
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return AudioProcessing::kNoError;
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}
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int LevelEstimatorImpl::ConfigureHandle(void* /*handle*/) const {
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return AudioProcessing::kNoError;
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}
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int LevelEstimatorImpl::num_handles_required() const {
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return 1;
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}
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int LevelEstimatorImpl::GetHandleError(void* /*handle*/) const {
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return AudioProcessing::kUnspecifiedError;
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}
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} // namespace webrtc
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