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00022 #ifndef GAVLTIME_H_INCLUDED
00023 #define GAVLTIME_H_INCLUDED
00024
00025 #ifdef __cplusplus
00026 extern "C" {
00027 #endif
00028
00029 #pragma GCC visibility push(default)
00030
00037 #define GAVL_TIME_SCALE 1000000
00042 #define GAVL_TIME_UNDEFINED 0x8000000000000000LL
00045 #define GAVL_TIME_MAX 0x7fffffffffffffffLL
00052 typedef int64_t gavl_time_t;
00053
00054
00055
00060 gavl_time_t gavl_samples_to_time(int samplerate, int64_t samples);
00061
00069 int64_t gavl_time_to_samples(int samplerate, gavl_time_t time);
00070
00075 gavl_time_t gavl_frames_to_time(int rate_num, int rate_den, int64_t frames);
00076
00077
00086 int64_t gavl_time_to_frames(int rate_num, int rate_den, gavl_time_t time);
00087
00095 int64_t gavl_time_scale(int scale, gavl_time_t time);
00096
00104 gavl_time_t gavl_time_unscale(int scale, int64_t time);
00105
00114 int64_t gavl_time_rescale(int scale1, int scale2, int64_t time);
00115
00122 #define gavl_seconds_to_time(s) (gavl_time_t)((s)*(double)(GAVL_TIME_SCALE))
00123
00130 #define gavl_time_to_seconds(t) ((double)(t)/(double)(GAVL_TIME_SCALE))
00131
00137 void gavl_time_delay(gavl_time_t * time);
00138
00143 #define GAVL_TIME_STRING_LEN 11
00144
00154 void
00155 gavl_time_prettyprint(gavl_time_t time, char str[GAVL_TIME_STRING_LEN]);
00156
00157
00158
00159
00160
00161 int gavl_time_parse(const char * str, gavl_time_t * ret);
00162
00163
00164
00165
00180 typedef struct gavl_timer_s gavl_timer_t;
00181
00187 gavl_timer_t * gavl_timer_create();
00188
00196 void gavl_timer_destroy(gavl_timer_t * timer);
00197
00203 void gavl_timer_start(gavl_timer_t * timer);
00204
00210 void gavl_timer_stop(gavl_timer_t * timer);
00211
00218 gavl_time_t gavl_timer_get(gavl_timer_t * timer);
00219
00226 void gavl_timer_set(gavl_timer_t * timer, gavl_time_t t);
00227
00228 #pragma GCC visibility pop
00229
00230 #ifdef __cplusplus
00231 }
00232 #endif
00233
00234 #endif
00235