/* * Copyright (C) 2017 Apple Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted, provided that the following conditions * are required to be 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. AND 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. */ #pragma once #if USE(LIBWEBRTC) #include "AudioSampleDataSource.h" #include "RealtimeOutgoingAudioSource.h" namespace webrtc { class AudioTrackInterface; class AudioTrackSinkInterface; } namespace WebCore { class RealtimeOutgoingAudioSourceCocoa final : public RealtimeOutgoingAudioSource { public: static Ref<RealtimeOutgoingAudioSourceCocoa> create(Ref<MediaStreamTrackPrivate>&& audioSource) { return adoptRef(*new RealtimeOutgoingAudioSourceCocoa(WTFMove(audioSource))); } private: explicit RealtimeOutgoingAudioSourceCocoa(Ref<MediaStreamTrackPrivate>&&); ~RealtimeOutgoingAudioSourceCocoa(); void audioSamplesAvailable(const MediaTime&, const PlatformAudioData&, const AudioStreamDescription&, size_t) final; bool isReachingBufferedAudioDataHighLimit() final; bool isReachingBufferedAudioDataLowLimit() final; bool hasBufferedEnoughData() final; void sourceUpdated() final; void pullAudioData(); Ref<AudioSampleDataSource> m_sampleConverter; CAAudioStreamDescription m_inputStreamDescription; CAAudioStreamDescription m_outputStreamDescription; Vector<uint8_t> m_audioBuffer; uint64_t m_readCount { 0 }; uint64_t m_writeCount { 0 }; bool m_skippingAudioData { false }; }; } // namespace WebCore #endif // USE(LIBWEBRTC)