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/*
* visualizer.h
* Copyright 2014 John Lindgren
*
* 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
* provided with the distribution.
*
* This software is provided "as is" and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising from
* the use of this software.
*/
#ifndef LIBAUDCORE_VISUALIZER_H
#define LIBAUDCORE_VISUALIZER_H
#include <libaudcore/export.h>
class LIBAUDCORE_PUBLIC Visualizer
{
public:
enum {
MonoPCM = (1 << 0),
MultiPCM = (1 << 1),
Freq = (1 << 2)
};
const int type_mask;
constexpr Visualizer (int type_mask) :
type_mask (type_mask) {}
/* reset internal state and clear display */
virtual void clear () = 0;
/* 512 frames of a single-channel PCM signal */
virtual void render_mono_pcm (const float * pcm) {}
/* 512 frames of an interleaved multi-channel PCM signal */
virtual void render_multi_pcm (const float * pcm, int channels) {}
/* intensity of frequencies 1/512, 2/512, ..., 256/512 of sample rate */
virtual void render_freq (const float * freq) {}
};
#endif /* LIBAUDCORE_VISUALIZER_H */
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