timecode.h

00001 /*****************************************************************
00002  * gavl - a general purpose audio/video processing library
00003  *
00004  * Copyright (c) 2001 - 2008 Members of the Gmerlin project
00005  * gmerlin-general@lists.sourceforge.net
00006  * http://gmerlin.sourceforge.net
00007  *
00008  * This program is free software: you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation, either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This program is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU General Public License
00019  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00020  * *****************************************************************/
00021  
00022 #ifndef TIMECODE_H_INCLUDED
00023 #define TIMECODE_H_INCLUDED
00024 
00025 #ifdef __cplusplus
00026 extern "C" {
00027 #endif
00028 
00029 #include <gavl/gavldefs.h>
00030 
00043 typedef uint64_t gavl_timecode_t; 
00044 
00045 #define GAVL_TIMECODE_SIGN_MASK     (0x1LL<<62) 
00046 #define GAVL_TIMECODE_INVALID_MASK  (0x1LL<<63) 
00047 
00048 #define GAVL_TIMECODE_DROP_FRAME (1<<0) 
00049 
00050 #define GAVL_TIMECODE_UNDEFINED GAVL_TIMECODE_INVALID_MASK 
00051   
00052 
00059 typedef struct
00060   {
00061   int int_framerate; 
00062   int flags;         
00063   } gavl_timecode_format_t;
00064   
00073 GAVL_PUBLIC
00074 void gavl_timecode_to_hmsf(gavl_timecode_t tc,
00075                            int * hours,
00076                            int * minutes,
00077                            int * seconds,
00078                            int * frames);
00079 
00087 GAVL_PUBLIC
00088 void gavl_timecode_to_ymd(gavl_timecode_t tc,
00089                           int * year,
00090                           int * month,
00091                           int * day);
00092 
00101 GAVL_PUBLIC
00102 void gavl_timecode_from_hmsf(gavl_timecode_t * tc,
00103                             int hours,
00104                             int minutes,
00105                             int seconds,
00106                             int frames);
00107 
00115 GAVL_PUBLIC
00116 void gavl_timecode_from_ymd(gavl_timecode_t * tc,
00117                             int year,
00118                             int month,
00119                             int day);
00120 
00131 GAVL_PUBLIC
00132 int64_t gavl_timecode_to_framecount(const gavl_timecode_format_t * tf,
00133                                     gavl_timecode_t tc);
00134 
00145 GAVL_PUBLIC
00146 gavl_timecode_t gavl_timecode_from_framecount(const gavl_timecode_format_t * tf,
00147                                               int64_t fc);
00148 
00156 GAVL_PUBLIC
00157 void gavl_timecode_dump(const gavl_timecode_format_t * tf,
00158                         gavl_timecode_t tc);
00159   
00160 
00161 /* -YYYY-MM-DD-HH:MM:SS.FFFF */
00162 
00163 #define GAVL_TIMECODE_STRING_LEN 26 
00176 GAVL_PUBLIC
00177 void gavl_timecode_prettyprint(const gavl_timecode_format_t * tf,
00178                                gavl_timecode_t tc,
00179                                char str[GAVL_TIMECODE_STRING_LEN]);
00180  
00181 /* -HH:MM:SS:FF */
00182 
00183 #define GAVL_TIMECODE_STRING_LEN_SHORT 13 
00193 GAVL_PUBLIC
00194 void gavl_timecode_prettyprint_short(gavl_timecode_t tc,
00195                                      char str[GAVL_TIMECODE_STRING_LEN_SHORT]);
00196 
00197   
00198 /*
00199  * @}
00200  */
00201 
00202 #ifdef __cplusplus
00203 }
00204 #endif
00205 
00206 #endif /* TIMECODE_H_INCLUDED */
00207 

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