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/*
* Copyright (C) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
#include <algorithm>
#include "third_party/blink/renderer/modules/webaudio/delay_dsp_kernel.h"
#include "third_party/blink/renderer/platform/audio/audio_utilities.h"
#include "third_party/blink/renderer/platform/wtf/math_extras.h"
namespace blink {
DelayDSPKernel::DelayDSPKernel(DelayProcessor* processor)
: AudioDelayDSPKernel(processor, audio_utilities::kRenderQuantumFrames) {
DCHECK(processor);
DCHECK_GT(processor->SampleRate(), 0);
max_delay_time_ = processor->MaxDelayTime();
DCHECK_GE(max_delay_time_, 0);
DCHECK(!std::isnan(max_delay_time_));
buffer_.Allocate(
BufferLengthForDelay(max_delay_time_, processor->SampleRate()));
buffer_.Zero();
}
bool DelayDSPKernel::HasSampleAccurateValues() {
return GetDelayProcessor()->DelayTime().HasSampleAccurateValues();
}
void DelayDSPKernel::CalculateSampleAccurateValues(float* delay_times,
uint32_t frames_to_process) {
GetDelayProcessor()->DelayTime().CalculateSampleAccurateValues(
delay_times, frames_to_process);
}
double DelayDSPKernel::DelayTime(float) {
return GetDelayProcessor()->DelayTime().FinalValue();
}
bool DelayDSPKernel::IsAudioRate() {
return GetDelayProcessor()->DelayTime().IsAudioRate();
}
void DelayDSPKernel::ProcessOnlyAudioParams(uint32_t frames_to_process) {
DCHECK_LE(frames_to_process, audio_utilities::kRenderQuantumFrames);
float values[audio_utilities::kRenderQuantumFrames];
GetDelayProcessor()->DelayTime().CalculateSampleAccurateValues(
values, frames_to_process);
}
} // namespace blink
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