@@ -1528,8 +1528,8 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti

             nb_frames_drop += ost->last_droped;

     }

-    secs = pts / AV_TIME_BASE;

-    us = pts % AV_TIME_BASE;

+    secs = FFABS(pts) / AV_TIME_BASE;

+    us = FFABS(pts) % AV_TIME_BASE;

     mins = secs / 60;

     secs %= 60;

     hours = mins / 60;

@@ -1541,6 +1541,8 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti

                                  "size=N/A time=");

     else                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),

                                  "size=%8.0fkB time=", total_size / 1024.0);

+    if (pts < 0)

+        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");

     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),

              "%02d:%02d:%02d.%02d ", hours, mins, secs,

              (100 * us) / AV_TIME_BASE);