| /* |
| * Copyright (C) 2015 Apple 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 COMPUTER, INC. ``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 COMPUTER, INC. OR |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(WEB_AUDIO) && ENABLE(MEDIA_STREAM) |
| |
| #include "CAAudioStreamDescription.h" |
| #include "MediaStreamTrackPrivate.h" |
| #include "WebAudioSourceProvider.h" |
| #include <CoreAudio/CoreAudioTypes.h> |
| #include <wtf/Lock.h> |
| #include <wtf/RefCounted.h> |
| #include <wtf/RefPtr.h> |
| |
| typedef struct AudioBufferList AudioBufferList; |
| typedef struct OpaqueAudioConverter* AudioConverterRef; |
| typedef struct AudioStreamBasicDescription AudioStreamBasicDescription; |
| typedef const struct opaqueCMFormatDescription *CMFormatDescriptionRef; |
| typedef struct opaqueCMSampleBuffer *CMSampleBufferRef; |
| |
| namespace WebCore { |
| |
| class AudioSampleDataSource; |
| class CAAudioStreamDescription; |
| |
| class WEBCORE_EXPORT WebAudioSourceProviderAVFObjC final : public WebAudioSourceProvider, MediaStreamTrackPrivate::Observer { |
| public: |
| static Ref<WebAudioSourceProviderAVFObjC> create(MediaStreamTrackPrivate&); |
| virtual ~WebAudioSourceProviderAVFObjC(); |
| |
| void prepare(const AudioStreamBasicDescription&); |
| void unprepare(); |
| |
| private: |
| explicit WebAudioSourceProviderAVFObjC(MediaStreamTrackPrivate&); |
| |
| // AudioSourceProvider |
| void provideInput(AudioBus*, size_t) final; |
| void setClient(AudioSourceProviderClient*) final; |
| |
| // MediaStreamTrackPrivate::Observer |
| void audioSamplesAvailable(MediaStreamTrackPrivate&, const MediaTime&, const PlatformAudioData&, const AudioStreamDescription&, size_t) final; |
| void trackEnded(MediaStreamTrackPrivate&) final { } |
| void trackMutedChanged(MediaStreamTrackPrivate&) final { } |
| void trackSettingsChanged(MediaStreamTrackPrivate&) final { } |
| void trackEnabledChanged(MediaStreamTrackPrivate&) final { } |
| |
| size_t m_listBufferSize { 0 }; |
| Optional<CAAudioStreamDescription> m_inputDescription; |
| Optional<CAAudioStreamDescription> m_outputDescription; |
| RefPtr<AudioSampleDataSource> m_dataSource; |
| |
| uint64_t m_writeCount { 0 }; |
| uint64_t m_readCount { 0 }; |
| AudioSourceProviderClient* m_client { nullptr }; |
| MediaStreamTrackPrivate* m_captureSource { nullptr }; |
| Lock m_mutex; |
| bool m_connected { false }; |
| }; |
| |
| } |
| |
| #endif |