PREROLL_TIME      370 libavformat/asfenc.c         avio_wl64(pb, pres_time + PREROLL_TIME * 10000); // presentation time
PREROLL_TIME      408 libavformat/asfenc.c     duration       = asf->duration + PREROLL_TIME * 10000;
PREROLL_TIME      474 libavformat/asfenc.c     avio_wl64(pb, PREROLL_TIME); /* start time stamp */
PREROLL_TIME      980 libavformat/asfenc.c             put_payload_header(s, stream, timestamp + PREROLL_TIME,
PREROLL_TIME     1070 libavformat/asfenc.c     if (   pts < - PREROLL_TIME
PREROLL_TIME     1071 libavformat/asfenc.c         || pts > (INT_MAX-3)/10000LL * ASF_INDEXED_INTERVAL - PREROLL_TIME) {
PREROLL_TIME     1082 libavformat/asfenc.c     start_sec = (int)((PREROLL_TIME * 10000 + pts + ASF_INDEXED_INTERVAL - 1)