text: /*
   * 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 "modules/webaudio/DelayProcessor.h"
  #include <memory>
  #include "modules/webaudio/DelayDSPKernel.h"
  #include "platform/audio/AudioUtilities.h"
  #include "platform/wtf/PtrUtil.h"
  
  namespace blink {
  
  DelayProcessor::DelayProcessor(float sample_rate,
                                 unsigned number_of_channels,
                                 AudioParamHandler& delay_time,
                                 double max_delay_time)
      : AudioDSPKernelProcessor(sample_rate, number_of_channels),
        delay_time_(delay_time),
        max_delay_time_(max_delay_time) {}
  
  DelayProcessor::~DelayProcessor() {
    if (IsInitialized())
      Uninitialize();
  }
  
  std::unique_ptr<AudioDSPKernel> DelayProcessor::CreateKernel() {
    return WTF::MakeUnique<DelayDSPKernel>(this);
  }
  
  void DelayProcessor::ProcessOnlyAudioParams(size_t frames_to_process) {
    DCHECK_LE(frames_to_process, AudioUtilities::kRenderQuantumFrames);
  
    float values[AudioUtilities::kRenderQuantumFrames];
  
    delay_time_->CalculateSampleAccurateValues(values, frames_to_process);
  }
  
  }  // namespace blink
  