doc: Document the order in which avoid_negative_ts is applied compared to other timestamp options

Also try to document the rational behind it. This might fix Ticket2376 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago · 9c22039c15
parent aafbfb1c2e
commit 9c22039c15
1 changed files with 4 additions and 0 deletions
--- a/doc/ffmpeg-formats.texi
+++ b/doc/ffmpeg-formats.texi
@ -146,6 +146,10 @@ 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.
+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
+with vsync/async and copyts.
@end table

@c man end FORMAT OPTIONS