/* * 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 1.16 2004/01/23 09:41:33 rob Exp $ */# ifndef LIBMAD_TIMER_H# define LIBMAD_TIMER_Htypedef 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	352800000ULenum 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