timeshift: add little comment to last pts delta fix

tvheadend · Oct 23, 2014 · 2ad44b0 · 2ad44b0
1 parent 1d2df40
commit 2ad44b0
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/timeshift.c b/src/timeshift.c
@@ -171,6 +171,12 @@ static void timeshift_input
     /* Record (one-off) PTS delta */
     if (sm->sm_type == SMT_PACKET && ts->pts_delta == PTS_UNSET) {
       if (pkt->pkt_pts != PTS_UNSET) {
+        /*
+         * Gather some packets and select the lowest pts to identify
+         * the correct start. Note that for timeshift, the tsfix
+         * stream plugin is applied, so the starting pts should be
+         * near zero. If not - it's a bug.
+         */
         int i;
         int64_t smallest = INT64_MAX;
         for (i = 0; i < ARRAY_SIZE(ts->pts_val); i++) {