MediaEndpoint.cpp   [plain text]

/*
 * Copyright (C) 2015 Ericsson AB. 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.
 * 3. Neither the name of Ericsson nor the names of its contributors
 *    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
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER 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,
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 */

#include "config.h"

#if ENABLE(WEB_RTC)
#include "MediaEndpoint.h"

#include "MediaPayload.h"
#include "RealtimeMediaSource.h"

namespace WebCore {

class EmptyRealtimeMediaSource : public RealtimeMediaSource {
public:
    static Ref<EmptyRealtimeMediaSource> create() { return adoptRef(*new EmptyRealtimeMediaSource()); }

    RefPtr<RealtimeMediaSourceCapabilities> capabilities() override { return nullptr; }
    const RealtimeMediaSourceSettings& settings() override { return m_sourceSettings; }

private:
    EmptyRealtimeMediaSource()
        : RealtimeMediaSource(emptyString(), RealtimeMediaSource::None, emptyString())
        { }

    RealtimeMediaSourceSettings m_sourceSettings;
};

class EmptyMediaEndpoint : public MediaEndpoint {
public:
    EmptyMediaEndpoint(MediaEndpointClient&) { }

    void setConfiguration(RefPtr<MediaEndpointConfiguration>&&) override { }

    void generateDtlsInfo() override { }
    MediaPayloadVector getDefaultAudioPayloads() override { return MediaPayloadVector(); }
    MediaPayloadVector getDefaultVideoPayloads() override { return MediaPayloadVector(); }
    MediaPayloadVector filterPayloads(const MediaPayloadVector&, const MediaPayloadVector&) override { return MediaPayloadVector(); }

    UpdateResult updateReceiveConfiguration(MediaEndpointSessionConfiguration*, bool) override { return UpdateResult::Failed; }
    UpdateResult updateSendConfiguration(MediaEndpointSessionConfiguration*, const RealtimeMediaSourceMap&, bool) override { return UpdateResult::Failed; }

    void addRemoteCandidate(IceCandidate&, const String&, const String&, const String&) override { }

    Ref<RealtimeMediaSource> createMutedRemoteSource(const String&, RealtimeMediaSource::Type) override { return EmptyRealtimeMediaSource::create(); }
    void replaceSendSource(RealtimeMediaSource&, const String&) override { }

    void stop() override { }
};

static std::unique_ptr<MediaEndpoint> createMediaEndpoint(MediaEndpointClient& client)
{
    return std::make_unique<EmptyMediaEndpoint>(client);
}

CreateMediaEndpoint MediaEndpoint::create = createMediaEndpoint;

} // namespace WebCore

#endif // ENABLE(WEB_RTC)