vis.h

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class NOVTABLE visualisation_stream : public service_base {
public:
    virtual bool get_absolute_time(double & p_value) = 0;
    
    virtual bool get_chunk_absolute(audio_chunk & p_chunk,double p_offset,double p_requested_length) = 0;
    virtual bool get_spectrum_absolute(audio_chunk & p_chunk,double p_offset,unsigned p_fft_size) = 0;
    
    virtual void make_fake_chunk_absolute(audio_chunk & p_chunk,double p_offset,double p_requested_length) = 0;
    virtual void make_fake_spectrum_absolute(audio_chunk & p_chunk,double p_offset,unsigned p_fft_size) = 0;

    FB2K_MAKE_SERVICE_INTERFACE(visualisation_stream,service_base);
};

class NOVTABLE visualisation_stream_v2 : public visualisation_stream {
public:
    virtual void request_backlog(double p_time) = 0;
    virtual void set_channel_mode(t_uint32 p_mode) = 0;

    enum {
        channel_mode_default = 0,
        channel_mode_mono,
        channel_mode_frontonly,
        channel_mode_backonly,
    };
    
    FB2K_MAKE_SERVICE_INTERFACE(visualisation_stream_v2,visualisation_stream);
};

class NOVTABLE visualisation_stream_v3 : public visualisation_stream_v2 {
public:
    virtual void chunk_to_spectrum(audio_chunk const & chunk, audio_chunk & spectrum, double centerOffset) = 0;
    
    FB2K_MAKE_SERVICE_INTERFACE(visualisation_stream_v3,visualisation_stream_v2);
};

class NOVTABLE visualisation_manager : public service_base {
public:
    virtual void create_stream(service_ptr_t<visualisation_stream> & p_out,unsigned p_flags) = 0;

    enum {
        KStreamFlagNewFFT = 1 << 0,
    };


    template<typename t_streamptr>
    void create_stream(t_streamptr & out, unsigned flags) {
        visualisation_stream::ptr temp; create_stream(temp, flags);
        if (!temp->service_query_t(out)) throw exception_service_extension_not_found();
    }

    FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(visualisation_manager);
};