From c9df08d7c95e826b479a22746b195ae1abd7e00c Mon Sep 17 00:00:00 2001 From: Christophe Massiot Date: Mon, 10 Oct 2011 13:30:45 +0300 Subject: [PATCH] dvb/si: Move date and time functions to dvb/si/datetime.h --- dvb/si.h | 20 +------------- dvb/si/datetime.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 71 insertions(+), 19 deletions(-) create mode 100644 dvb/si/datetime.h diff --git a/dvb/si.h b/dvb/si.h index b578fef..19810d3 100644 --- a/dvb/si.h +++ b/dvb/si.h @@ -38,31 +38,13 @@ #include #include #include +#include #ifdef __cplusplus extern "C" { #endif -/* EN 300 468 Annex C, year is from 1900 */ -static inline uint16_t dvb_mjd_set(int y, int m, int d) -{ - int l = (m == 1 || m == 2) ? 1 : 0; - int mjd = 14956 + d + (y - l) * 1461 / 4 + (m + 1 + l * 12) * 306001 / 10000; - return (uint16_t)mjd; -} - -static inline void dvb_mjd_get(uint16_t mjd, int *y, int *m, int *d) -{ - int k; - int yp = (mjd * 20 - 301564) / 7305; - int mp = (mjd * 10000 - 149561000 - yp * 3652500) / 306001; - *d = mjd - 14956 - yp * 1461 / 4 - mp * 306001 / 10000; - k = (mp == 14 || mp == 15) ? 1 : 0; - *y = yp + k; - *m = mp - 1 - k * 12; -} - /***************************************************************************** * DVB string *****************************************************************************/ diff --git a/dvb/si/datetime.h b/dvb/si/datetime.h new file mode 100644 index 0000000..163c9ed --- /dev/null +++ b/dvb/si/datetime.h @@ -0,0 +1,70 @@ +/***************************************************************************** + * datetime.h: ETSI EN 300 468 Date and time functions + ***************************************************************************** + * Copyright (C) 2009-2010 VideoLAN + * + * Authors: Christophe Massiot + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject + * to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + *****************************************************************************/ + +#include + +/* + * Normative references: + * - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems) + */ + +#ifndef __BITSTREAM_DVB_DATETIME_H__ +#define __BITSTREAM_DVB_DATETIME_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +/***************************************************************************** + * DVB Date and time functions + *****************************************************************************/ + +/* EN 300 468 Annex C, year is from 1900 */ +static inline uint16_t dvb_mjd_set(int y, int m, int d) +{ + int l = (m == 1 || m == 2) ? 1 : 0; + int mjd = 14956 + d + (y - l) * 1461 / 4 + (m + 1 + l * 12) * 306001 / 10000; + return (uint16_t)mjd; +} + +static inline void dvb_mjd_get(uint16_t mjd, int *y, int *m, int *d) +{ + int k; + int yp = (mjd * 20 - 301564) / 7305; + int mp = (mjd * 10000 - 149561000 - yp * 3652500) / 306001; + *d = mjd - 14956 - yp * 1461 / 4 - mp * 306001 / 10000; + k = (mp == 14 || mp == 15) ? 1 : 0; + *y = yp + k; + *m = mp - 1 - k * 12; +} + +#ifdef __cplusplus +} +#endif + +#endif