//
// libtgvoip is free and unencumbered public domain software.
// For more information, see http://unlicense.org or the UNLICENSE file
// you should have received with this source code distribution.
//

#ifndef LIBTGVOIP_AUDIOOUTPUTOPENSLES_H
#define LIBTGVOIP_AUDIOOUTPUTOPENSLES_H

#include "../../audio/AudioOutput.h"

#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>

namespace tgvoip
{
namespace audio
{
    class AudioOutputOpenSLES : public AudioOutput
    {
    public:
        AudioOutputOpenSLES();
        virtual ~AudioOutputOpenSLES();
        virtual void Configure(std::uint32_t sampleRate, std::uint32_t bitsPerSample, std::uint32_t channels);
        virtual bool IsPhone();
        virtual void EnableLoudspeaker(bool enabled);
        virtual void Start();
        virtual void Stop();
        virtual bool IsPlaying();
        virtual float GetLevel();

        static void SetNativeBufferSize(unsigned int size);
        static unsigned int nativeBufferSize;

    private:
        static void BufferCallback(SLAndroidSimpleBufferQueueItf bq, void* context);
        void HandleSLCallback();
        SLEngineItf slEngine;
        SLObjectItf slPlayerObj;
        SLObjectItf slOutputMixObj;
        SLPlayItf slPlayer;
        SLAndroidSimpleBufferQueueItf slBufferQueue;
        std::int16_t* buffer;
        std::int16_t* nativeBuffer;
        bool stopped;
        std::uint8_t remainingData[10240];
        std::size_t remainingDataSize;
    };
}
}

#endif // LIBTGVOIP_AUDIOOUTPUTANDROID_H