DAY_TS            936 libavformat/sbgdec.c             delta += DAY_TS;
DAY_TS           1274 libavformat/sbgdec.c     period = (period + (DAY_TS - 1)) / DAY_TS * DAY_TS;
DAY_TS           1275 libavformat/sbgdec.c     period = FFMAX(period, DAY_TS);