passthroughaudiocapture.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/audiocapturebase.h"

#include "twitchsdk/core/concurrentqueue.h"

#include <vector>


namespace ttv
{
    class IThread;

    namespace broadcast
    {       
        class PassThroughAudioCapture;
    }
}

class ttv::broadcast::PassThroughAudioCapture : public AudioCaptureBase
{
public:
    PassThroughAudioCapture();
    virtual ~PassThroughAudioCapture();

    TTV_ErrorCode SetAudioFormat(AudioFormat format);
    TTV_ErrorCode SetNumChannels(uint32_t numChannels);
    TTV_ErrorCode EnqueueAudioPacket(std::vector<uint8_t>&& videoPacket, uint64_t timestamp);

public:
    // IAudioCapture implementation
    virtual std::string GetName() const override;
    virtual uint32_t GetNumChannels() const override;
    virtual TTV_ErrorCode Process(const std::shared_ptr<IAudioMixer>& mixer, uint64_t& lastSampleTime) override;
    virtual TTV_ErrorCode Stop() override;

private:
    struct QueueEntry
    {
        std::vector<uint8_t> packet;
        uint64_t timestamp;
    };

    ConcurrentQueue<std::shared_ptr<QueueEntry>> mAudioPacketQueue;
    AudioFormat mAudioFormat;
    uint32_t mNumChannels;
};