gavltime.h
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00022 #ifndef GAVLTIME_H_INCLUDED
00023 #define GAVLTIME_H_INCLUDED
00024
00025 #ifdef __cplusplus
00026 extern "C" {
00027 #endif
00028
00035 #define GAVL_TIME_SCALE 1000000
00040 #define GAVL_TIME_UNDEFINED 0x8000000000000000LL
00043 #define GAVL_TIME_MAX 0x7fffffffffffffffLL
00050 typedef int64_t gavl_time_t;
00051
00052
00053
00059 gavl_time_t gavl_samples_to_time(int samplerate, int64_t samples);
00060
00069 int64_t gavl_time_to_samples(int samplerate, gavl_time_t time);
00070
00076 gavl_time_t gavl_frames_to_time(int rate_num, int rate_den, int64_t frames);
00077
00078
00088 int64_t gavl_time_to_frames(int rate_num, int rate_den, gavl_time_t time);
00089
00098 int64_t gavl_time_scale(int scale, gavl_time_t time);
00099
00108 gavl_time_t gavl_time_unscale(int scale, int64_t time);
00109
00119 int64_t gavl_time_rescale(int scale1, int scale2, int64_t time);
00120
00127 #define gavl_seconds_to_time(s) (gavl_time_t)((s)*(double)(GAVL_TIME_SCALE))
00128
00135 #define gavl_time_to_seconds(t) ((double)(t)/(double)(GAVL_TIME_SCALE))
00136
00142 void gavl_time_delay(gavl_time_t * time);
00143
00148 #define GAVL_TIME_STRING_LEN 11
00149
00159 void
00160 gavl_time_prettyprint(gavl_time_t time, char str[GAVL_TIME_STRING_LEN]);
00161
00162
00163
00164
00165
00166 int gavl_time_parse(const char * str, gavl_time_t * ret);
00167
00168
00169
00170
00185 typedef struct gavl_timer_s gavl_timer_t;
00186
00192 gavl_timer_t * gavl_timer_create();
00193
00201 void gavl_timer_destroy(gavl_timer_t * timer);
00202
00208 void gavl_timer_start(gavl_timer_t * timer);
00209
00215 void gavl_timer_stop(gavl_timer_t * timer);
00216
00223 gavl_time_t gavl_timer_get(gavl_timer_t * timer);
00224
00231 void gavl_timer_set(gavl_timer_t * timer, gavl_time_t t);
00232
00233 #ifdef __cplusplus
00234 }
00235 #endif
00236
00237 #endif
00238