diff options
Diffstat (limited to 'doc/ffmpeg-formats.texi')
| -rw-r--r-- | doc/ffmpeg-formats.texi | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/doc/ffmpeg-formats.texi b/doc/ffmpeg-formats.texi index 0e972a8..2659627 100644 --- a/doc/ffmpeg-formats.texi +++ b/doc/ffmpeg-formats.texi @@ -140,12 +140,18 @@ Consider things that a sane encoder should not do as an error. Use wallclock as timestamps. @item avoid_negative_ts @var{integer} (@emph{output}) -Shift timestamps to make them positive. 1 enables, 0 disables, default -of -1 enables when required by target format. -When timestamps are shifted, all timestamps of a output file are shifted -together by the same amount. AV sync, subtitle sync and relative timestamp -differences are preserved compared to how they would have been without -shifting. +Shift timestamps to make them positive. A value of 1 enables shifting, +a value of 0 disables it, the default value of -1 enables shifting +when required by the target format. + +When shifting is enabled, all output timestamps are shifted by the +same amount. Audio, video, and subtitles desynching and relative +timestamp differences are preserved compared to how they would have +been without shifting. + +Also note that this affects only leading negative timestamps, and not +non-monotonic negative timestamps. + When avoid_negative_ts is used together with copyts, vsync or async then avoid_negative_ts is applied last. This is neccessary so that containers which do not support negative timestamps wont get any and can be used |
