a7384a1126
Now there is only one API to get the data or the channels (one const and one no const) merged or by band. The band is passed in as a parameter, instead of calling different methods. BUG=webrtc:3146 R=andrew@webrtc.org, bjornv@webrtc.org, kwiberg@webrtc.org Review URL: https://webrtc-codereview.appspot.com/27249004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7790 4adac7df-926f-26a2-2b94-8c16560cd09d
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->data_const(i),
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audio->samples_per_channel());
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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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