vlc | branch: master | Steve Lhomme <[email protected]> | Fri Jun 22 18:02:36 2018 +0200| [505182d874273dcbfdc10184f450469ee63a96df] | committer: Steve Lhomme
vlc_tick: add helper macros to convert milliseconds to/from vlc_tick_t > http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=505182d874273dcbfdc10184f450469ee63a96df --- include/vlc_tick.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/vlc_tick.h b/include/vlc_tick.h index 1b18e22d44..7236b98d9d 100644 --- a/include/vlc_tick.h +++ b/include/vlc_tick.h @@ -98,6 +98,21 @@ static inline double secf_from_vlc_tick(vlc_tick_t vtk) } +/* + * vlc_tick_t <> milliseconds (ms) conversions + */ +#if (CLOCK_FREQ % 1000) == 0 +#define VLC_TICK_FROM_MS(ms) ((CLOCK_FREQ / INT64_C(1000)) * (ms)) +#define MS_FROM_VLC_TICK(vtk) ((vtk) / (CLOCK_FREQ / INT64_C(1000))) +#elif (1000 % CLOCK_FREQ) == 0 +#define VLC_TICK_FROM_MS(ms) ((ms) / (INT64_C(1000) / CLOCK_FREQ)) +#define MS_FROM_VLC_TICK(vtk) ((vtk) * (INT64_C(1000) / CLOCK_FREQ)) +#else /* rounded overflowing conversion */ +#define VLC_TICK_FROM_MS(ms) (CLOCK_FREQ * (ms) / 1000) +#define MS_FROM_VLC_TICK(vtk) ((vtk) * 1000 / CLOCK_FREQ) +#endif /* CLOCK_FREQ / 1000 */ + + /***************************************************************************** * MSTRTIME_MAX_SIZE: maximum possible size of mstrtime ***************************************************************************** _______________________________________________ vlc-commits mailing list [email protected] https://mailman.videolan.org/listinfo/vlc-commits
