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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 34db2f4630..2bd013de6f 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -1864,6 +1864,12 @@ previous input PTS @item PREV_OUTPTS previous output PTS +@item RTCTIME +wallclock (RTC) time in microseconds + +@item RTCSTART +wallclock (RTC) time at the start of the movie in microseconds + @end table Some examples follow: @@ -1883,6 +1889,9 @@ setpts=N/(25*TB) # fixed rate 25 fps with some jitter setpts='1/(25*TB) * (N + 0.05 * sin(N*2*PI/25))' + +# generate timestamps from a "live source" and rebase onto the current timebase +setpts='(RTCTIME - RTCSTART) / (TB * 1000000)" @end example @anchor{setsar} |