mirror of
https://github.com/cookiengineer/audacity
synced 2025-10-31 14:13:50 +01:00
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/*
|
|
* libmad - MPEG audio decoder library
|
|
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
|
|
*
|
|
* 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 program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* $Id: timer.h,v 1.2 2005-09-12 07:01:30 dmazzoni Exp $
|
|
*/
|
|
|
|
# ifndef LIBMAD_TIMER_H
|
|
# define LIBMAD_TIMER_H
|
|
|
|
typedef struct {
|
|
signed long seconds; /* whole seconds */
|
|
unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
|
|
} mad_timer_t;
|
|
|
|
extern mad_timer_t const mad_timer_zero;
|
|
|
|
# define MAD_TIMER_RESOLUTION 352800000UL
|
|
|
|
enum mad_units {
|
|
MAD_UNITS_HOURS = -2,
|
|
MAD_UNITS_MINUTES = -1,
|
|
MAD_UNITS_SECONDS = 0,
|
|
|
|
/* metric units */
|
|
|
|
MAD_UNITS_DECISECONDS = 10,
|
|
MAD_UNITS_CENTISECONDS = 100,
|
|
MAD_UNITS_MILLISECONDS = 1000,
|
|
|
|
/* audio sample units */
|
|
|
|
MAD_UNITS_8000_HZ = 8000,
|
|
MAD_UNITS_11025_HZ = 11025,
|
|
MAD_UNITS_12000_HZ = 12000,
|
|
|
|
MAD_UNITS_16000_HZ = 16000,
|
|
MAD_UNITS_22050_HZ = 22050,
|
|
MAD_UNITS_24000_HZ = 24000,
|
|
|
|
MAD_UNITS_32000_HZ = 32000,
|
|
MAD_UNITS_44100_HZ = 44100,
|
|
MAD_UNITS_48000_HZ = 48000,
|
|
|
|
/* video frame/field units */
|
|
|
|
MAD_UNITS_24_FPS = 24,
|
|
MAD_UNITS_25_FPS = 25,
|
|
MAD_UNITS_30_FPS = 30,
|
|
MAD_UNITS_48_FPS = 48,
|
|
MAD_UNITS_50_FPS = 50,
|
|
MAD_UNITS_60_FPS = 60,
|
|
|
|
/* CD audio frames */
|
|
|
|
MAD_UNITS_75_FPS = 75,
|
|
|
|
/* video drop-frame units */
|
|
|
|
MAD_UNITS_23_976_FPS = -24,
|
|
MAD_UNITS_24_975_FPS = -25,
|
|
MAD_UNITS_29_97_FPS = -30,
|
|
MAD_UNITS_47_952_FPS = -48,
|
|
MAD_UNITS_49_95_FPS = -50,
|
|
MAD_UNITS_59_94_FPS = -60
|
|
};
|
|
|
|
# define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
|
|
|
|
int mad_timer_compare(mad_timer_t, mad_timer_t);
|
|
|
|
# define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
|
|
|
|
void mad_timer_negate(mad_timer_t *);
|
|
mad_timer_t mad_timer_abs(mad_timer_t);
|
|
|
|
void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
|
|
void mad_timer_add(mad_timer_t *, mad_timer_t);
|
|
void mad_timer_multiply(mad_timer_t *, signed long);
|
|
|
|
signed long mad_timer_count(mad_timer_t, enum mad_units);
|
|
unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
|
|
void mad_timer_string(mad_timer_t, char *, char const *,
|
|
enum mad_units, enum mad_units, unsigned long);
|
|
|
|
# endif
|