| /* |
| * 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 <memory> |
| #include "third_party/blink/renderer/modules/webaudio/delay_dsp_kernel.h" |
| #include "third_party/blink/renderer/modules/webaudio/delay_processor.h" |
| #include "third_party/blink/renderer/platform/audio/audio_utilities.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 std::make_unique<DelayDSPKernel>(this); |
| } |
| |
| void DelayProcessor::ProcessOnlyAudioParams(uint32_t frames_to_process) { |
| DCHECK_LE(frames_to_process, audio_utilities::kRenderQuantumFrames); |
| |
| float values[audio_utilities::kRenderQuantumFrames]; |
| |
| delay_time_->CalculateSampleAccurateValues(values, frames_to_process); |
| } |
| |
| } // namespace blink |