RTCRtpSender.cpp   [plain text]

/*
 * Copyright (C) 2015 Ericsson AB. All rights reserved.
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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
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#include "config.h"
#include "RTCRtpSender.h"

#if ENABLE(WEB_RTC)

#include "ExceptionCode.h"

namespace WebCore {

Ref<RTCRtpSender> RTCRtpSender::create(Ref<MediaStreamTrack>&& track, Vector<String>&& mediaStreamIds, RTCRtpSenderClient& client)
{
    const String& trackKind = track->kind();
    return adoptRef(*new RTCRtpSender(WTFMove(track), trackKind, WTFMove(mediaStreamIds), client));
}

Ref<RTCRtpSender> RTCRtpSender::create(const String& trackKind, Vector<String>&& mediaStreamIds, RTCRtpSenderClient& client)
{
    return adoptRef(*new RTCRtpSender(nullptr, trackKind, WTFMove(mediaStreamIds), client));
}

RTCRtpSender::RTCRtpSender(RefPtr<MediaStreamTrack>&& track, const String& trackKind, Vector<String>&& mediaStreamIds, RTCRtpSenderClient& client)
    : RTCRtpSenderReceiverBase()
    , m_trackKind(trackKind)
    , m_mediaStreamIds(WTFMove(mediaStreamIds))
    , m_client(&client)
{
    setTrack(WTFMove(track));
}

void RTCRtpSender::setTrack(RefPtr<MediaStreamTrack>&& track)
{
    // Save the id from the first non-null track set. That id will be used to negotiate the sender
    // even if the track is replaced.
    if (!m_track && track)
        m_trackId = track->id();

    m_track = WTFMove(track);
}

ExceptionOr<void> RTCRtpSender::replaceTrack(Ref<MediaStreamTrack>&& withTrack, DOMPromise<void>&& promise)
{
    if (isStopped()) {
        promise.reject(INVALID_STATE_ERR);
        return { };
    }

    if (m_trackKind != withTrack->kind())
        return Exception { TypeError };

    m_client->replaceTrack(*this, WTFMove(withTrack), WTFMove(promise));

    return { };
}

} // namespace WebCore

#endif // ENABLE(WEB_RTC)