iaudiomixer.h

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/********************************************************************************************
* Twitch Broadcasting SDK
*
* This software is supplied under the terms of a license agreement with Twitch Interactive, Inc. and
* may not be copied or used except in accordance with the terms of that agreement
* Copyright (c) 2012-2016 Twitch Interactive, Inc.
*********************************************************************************************/

#pragma once

#include "twitchsdk/broadcast/broadcasttypes.h"
#include "twitchsdk/broadcast/iaudioframereceiver.h"
#include <memory>

namespace ttv
{
    namespace broadcast
    {       
        class IAudioMixer;
        class AudioMixerProxy;
        class AudioFrame;
    }
}

class ttv::broadcast::IAudioMixer
{
public:
    virtual ~IAudioMixer();

    virtual TTV_ErrorCode SubmitFrame(AudioLayerId audioLayerId, const std::shared_ptr<AudioFrame>& audioFrame) = 0;
    virtual bool SupportsReceiverProtocol(IAudioFrameReceiver::ReceiverTypeId typeId) const = 0;
    virtual std::shared_ptr<IAudioFrameReceiver> GetReceiverImplementation(IAudioFrameReceiver::ReceiverTypeId typeId) = 0;
};


class ttv::broadcast::AudioMixerProxy : public IAudioMixer
{
public:
    using SubmitFrameFunc = std::function<TTV_ErrorCode(AudioLayerId audioLayerId, const std::shared_ptr<AudioFrame>& audioFrame)>;
    using SupportsReceiverProtocolFunc = std::function<bool(IAudioFrameReceiver::ReceiverTypeId typeId)>;
    using GetReceiverImplementationFunc = std::function<std::shared_ptr<IAudioFrameReceiver>(IAudioFrameReceiver::ReceiverTypeId typeId)>;

public:
    virtual TTV_ErrorCode SubmitFrame(AudioLayerId audioLayerId, const std::shared_ptr<AudioFrame>& audioFrame) override
    {
        return mSubmitFrameFunc(audioLayerId, audioFrame);
    }

    virtual bool SupportsReceiverProtocol(IAudioFrameReceiver::ReceiverTypeId typeId) const override
    {
        return mSupportsReceiverProtocolFunc(typeId);
    }

    virtual std::shared_ptr<IAudioFrameReceiver> GetReceiverImplementation(IAudioFrameReceiver::ReceiverTypeId typeId) override
    {
        return mGetReceiverImplementationFunc(typeId);
    }

public:
    SubmitFrameFunc mSubmitFrameFunc;
    SupportsReceiverProtocolFunc mSupportsReceiverProtocolFunc;
    GetReceiverImplementationFunc mGetReceiverImplementationFunc;
};