Source/WebCore/platform/mediastream/RealtimeIncomingAudioSource.cpp

/*
 * Copyright (C) 2017-2019 Apple Inc. All rights reserved.
 *
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 * modification, are permitted provided that the following conditions
 * are met:
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 *    in the documentation and/or other materials provided with the
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 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include "config.h"
#include "RealtimeIncomingAudioSource.h"

#if USE(LIBWEBRTC)

#include "LibWebRTCAudioFormat.h"
#include "Logging.h"

namespace WebCore {

RealtimeIncomingAudioSource::RealtimeIncomingAudioSource(rtc::scoped_refptr<webrtc::AudioTrackInterface>&& audioTrack, String&& audioTrackId)
    : RealtimeMediaSource(RealtimeMediaSource::Type::Audio, "remote audio"_s, WTFMove(audioTrackId))
    , m_audioTrack(WTFMove(audioTrack))
{
    notifyMutedChange(!m_audioTrack);
}

RealtimeIncomingAudioSource::~RealtimeIncomingAudioSource()
{
    stop();
}

void RealtimeIncomingAudioSource::startProducingData()
{
    if (m_audioTrack)
        m_audioTrack->AddSink(this);
}

void RealtimeIncomingAudioSource::stopProducingData()
{
    if (m_audioTrack)
        m_audioTrack->RemoveSink(this);
}

void RealtimeIncomingAudioSource::setSourceTrack(rtc::scoped_refptr<webrtc::AudioTrackInterface>&& track)
{
    ASSERT(track);

    if (m_audioTrack && isProducingData())
        m_audioTrack->RemoveSink(this);

    m_audioTrack = WTFMove(track);
    notifyMutedChange(!m_audioTrack);
    if (isProducingData())
        m_audioTrack->AddSink(this);
}

const RealtimeMediaSourceCapabilities& RealtimeIncomingAudioSource::capabilities()
{
    return RealtimeMediaSourceCapabilities::emptyCapabilities();
}

const RealtimeMediaSourceSettings& RealtimeIncomingAudioSource::settings()
{
    return m_currentSettings;
}

}

#endif // USE(LIBWEBRTC)