| /* |
| * 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 "third_party/blink/public/platform/web_audio_bus.h" |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/platform/audio/audio_bus.h" |
| |
| namespace blink { |
| |
| void WebAudioBus::Initialize(unsigned number_of_channels, |
| size_t length, |
| double sample_rate) { |
| scoped_refptr<AudioBus> audio_bus = |
| AudioBus::Create(number_of_channels, length); |
| audio_bus->SetSampleRate(sample_rate); |
| |
| if (private_) |
| private_->Release(); |
| |
| audio_bus->AddRef(); |
| private_ = audio_bus.get(); |
| } |
| |
| void WebAudioBus::ResizeSmaller(size_t new_length) { |
| DCHECK(private_); |
| if (private_) { |
| DCHECK_LE(new_length, length()); |
| private_->ResizeSmaller(new_length); |
| } |
| } |
| |
| void WebAudioBus::Reset() { |
| if (private_) { |
| private_->Release(); |
| private_ = nullptr; |
| } |
| } |
| |
| unsigned WebAudioBus::NumberOfChannels() const { |
| if (!private_) |
| return 0; |
| return private_->NumberOfChannels(); |
| } |
| |
| size_t WebAudioBus::length() const { |
| if (!private_) |
| return 0; |
| return private_->length(); |
| } |
| |
| double WebAudioBus::SampleRate() const { |
| if (!private_) |
| return 0; |
| return private_->SampleRate(); |
| } |
| |
| float* WebAudioBus::ChannelData(unsigned channel_index) { |
| if (!private_) |
| return nullptr; |
| DCHECK_LT(channel_index, NumberOfChannels()); |
| return private_->Channel(channel_index)->MutableData(); |
| } |
| |
| scoped_refptr<AudioBus> WebAudioBus::Release() { |
| scoped_refptr<AudioBus> audio_bus(private_); |
| private_->Release(); |
| private_ = nullptr; |
| return audio_bus; |
| } |
| |
| } // namespace blink |