gstreamer/gst/monoscope/monoscope.h

#ifndef _MONOSCOPE_H
#define _MONOSCOPE_H

#include <glib.h>
#include "convolve.h"

#define scope_width 256
#define scope_height 128

struct monoscope_state {
    gint16 copyEq[CONVOLVE_BIG];
    int avgEq[CONVOLVE_SMALL];      /* a running average of the last few. */
    int avgMax;                     /* running average of max sample. */
    guint32 display[(scope_width + 1) * (scope_height + 1)];

    convolve_state *cstate;
    guint32 colors[64];
};

struct monoscope_state * monoscope_init (guint32 resx, guint32 resy);
guint32 * monoscope_update (struct monoscope_state * stateptr, gint16 data [512]);
void monoscope_close (struct monoscope_state * stateptr);

#endif