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| 1 /* | |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
| 14 * its contributors may be used to endorse or promote products derived | |
| 15 * from this software without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #ifndef AudioDestinationChromium_h | |
| 30 #define AudioDestinationChromium_h | |
| 31 | |
| 32 #include "platform/audio/AudioBus.h" | |
| 33 #include "platform/audio/AudioDestination.h" | |
| 34 #include "platform/audio/AudioIOCallback.h" | |
| 35 #include "platform/audio/AudioSourceProvider.h" | |
| 36 #include "public/platform/WebAudioDevice.h" | |
| 37 #include "public/platform/WebVector.h" | |
| 38 #include "wtf/Noncopyable.h" | |
| 39 | |
| 40 namespace WebCore { | |
| 41 | |
| 42 class AudioFIFO; | |
| 43 class AudioPullFIFO; | |
| 44 | |
| 45 // An AudioDestination using Chromium's audio system | |
| 46 | |
| 47 class PLATFORM_EXPORT AudioDestinationChromium : public AudioDestination, public
blink::WebAudioDevice::RenderCallback, public AudioSourceProvider { | |
| 48 WTF_MAKE_NONCOPYABLE(AudioDestinationChromium); | |
| 49 public: | |
| 50 AudioDestinationChromium(AudioIOCallback&, const String& inputDeviceId, unsi
gned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate); | |
| 51 virtual ~AudioDestinationChromium(); | |
| 52 | |
| 53 virtual void start(); | |
| 54 virtual void stop(); | |
| 55 bool isPlaying() { return m_isPlaying; } | |
| 56 | |
| 57 float sampleRate() const { return m_sampleRate; } | |
| 58 | |
| 59 // blink::WebAudioDevice::RenderCallback | |
| 60 virtual void render(const blink::WebVector<float*>& sourceData, const blink:
:WebVector<float*>& audioData, size_t numberOfFrames); | |
| 61 | |
| 62 // WebCore::AudioSourceProvider | |
| 63 virtual void provideInput(AudioBus*, size_t framesToProcess); | |
| 64 | |
| 65 private: | |
| 66 AudioIOCallback& m_callback; | |
| 67 unsigned m_numberOfOutputChannels; | |
| 68 RefPtr<AudioBus> m_inputBus; | |
| 69 RefPtr<AudioBus> m_renderBus; | |
| 70 float m_sampleRate; | |
| 71 bool m_isPlaying; | |
| 72 OwnPtr<blink::WebAudioDevice> m_audioDevice; | |
| 73 size_t m_callbackBufferSize; | |
| 74 | |
| 75 OwnPtr<AudioFIFO> m_inputFifo; | |
| 76 OwnPtr<AudioPullFIFO> m_fifo; | |
| 77 }; | |
| 78 | |
| 79 } // namespace WebCore | |
| 80 | |
| 81 #endif // AudioDestinationChromium_h | |
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Chromium Code Reviews
Issue 100993004:
Move chrome specific code from platform/audio/chromium to platform/audio (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master