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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/renderer/renderer_webaudiodevice_impl.h" | |
| 6 | |
| 7 using WebKit::WebAudioDevice; | |
| 8 using WebKit::WebVector; | |
| 9 | |
| 10 RendererWebAudioDeviceImpl::RendererWebAudioDeviceImpl(size_t buffer_size, | |
| 11 int channels, double sample_rate, WebAudioDevice::RenderCallback* callback) | |
| 12 : client_callback_(callback) { | |
| 13 audio_device_.reset( | |
| 14 new AudioDevice(buffer_size, channels, sample_rate, this)); | |
| 15 } | |
| 16 | |
| 17 RendererWebAudioDeviceImpl::~RendererWebAudioDeviceImpl() { | |
| 18 stop(); | |
| 19 } | |
| 20 | |
| 21 void RendererWebAudioDeviceImpl::start() { | |
| 22 audio_device_->Start(); | |
| 23 } | |
| 24 | |
| 25 void RendererWebAudioDeviceImpl::stop() { | |
| 26 audio_device_->Stop(); | |
| 27 } | |
| 28 | |
| 29 void RendererWebAudioDeviceImpl::Render(const std::vector<float*>& audio_data, | |
| 30 size_t number_of_frames) { | |
| 31 // Make the client callback to get rendered audio. | |
| 32 DCHECK(client_callback_); | |
| 33 if (client_callback_) { | |
| 34 // Wrap the pointers using WebVector. | |
| 35 WebVector<float*> web_audio_data(audio_data.size()); | |
| 36 for (size_t i = 0; i < audio_data.size(); ++i) | |
| 37 web_audio_data[i] = audio_data[i]; | |
| 38 | |
| 39 client_callback_->render(web_audio_data, number_of_frames); | |
| 40 } | |
| 41 } | |
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