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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Philipp Pertermann
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __PEAKMETER_H__
#define __PEAKMETER_H__
#define PEAK_METER_FPS 20
#define MAX_PEAK 0x8000
/*#define PM_DEBUG */
#ifdef PM_DEBUG
extern bool peak_meter_histogram(void);
#endif
extern int pm_get_clipcount(void);
extern void pm_reset_clipcount(void);
extern void pm_activate_clipcount(bool active);
extern void peak_meter_enable(bool enable);
extern void peak_meter_playback(bool playback);
extern int peak_meter_draw_get_btn(int action_context, int x[], int y[],
int height[], int nb_screens,
struct viewport vps[]);
extern void peak_meter_set_clip_hold(int time);
extern void peak_meter_peek(void);
extern void peak_meter_init_range( bool dbfs, int range_min, int range_max);
extern void peak_meter_init_times(int release, int hold, int clip_hold);
#ifdef HAVE_AGC
extern void peak_meter_get_peakhold(int *peak_left, int *peak_right);
#endif
extern int peak_meter_get_min(void);
extern int peak_meter_get_max(void);
extern void peak_meter_set_use_dbfs(bool use);
extern bool peak_meter_get_use_dbfs(void);
extern int calc_db (int isample);
extern int peak_meter_db2sample(int db);
extern unsigned short peak_meter_scale_value(unsigned short val, int meterwidth);
/* valid values for trigger_status */
#define TRIG_OFF 0x00
#define TRIG_READY 0x01
#define TRIG_STEADY 0x02
#define TRIG_GO 0x03
#define TRIG_POSTREC 0x04
#define TRIG_RETRIG 0x05
#define TRIG_CONTINUE 0x06
extern void peak_meter_define_trigger(
int start_threshold,
long start_duration,
long start_dropout,
int stop_threshold,
long stop_hold_time,
long restart_gap
);
extern void peak_meter_trigger(bool on);
extern int peak_meter_trigger_status(void);
extern void peak_meter_set_trigger_listener(void (*listener)(int status));
#define TRIG_HEIGHT 8
extern void peak_meter_draw_trig(int x[], int y[], int trig_width[],
int nb_screens);
#define DB_SCALE_SRC_VALUES_SIZE 12
struct meter_scales{
/* buffered peak values */
int pm_peak_left;
int pm_peak_right;
/* if db_scale_valid is false the content of
db_scale_lcd_coord needs recalculation */
bool db_scale_valid;
/* contains the lcd x coordinates of the magical
scale values in db_scale_src_values */
int db_scale_lcd_coord[DB_SCALE_SRC_VALUES_SIZE];
int last_left;
int last_right;
/* peak hold timeouts */
long pm_peak_timeout_l;
long pm_peak_timeout_r;
};
extern void peak_meter_screen(struct screen *display, int x, int y, int height);
#endif /* __PEAKMETER_H__ */
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