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

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Also try to document the rational behind it.

This might fix Ticket2376

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2013-03-18 23:17:16 +01:00
parent aafbfb1c2e
commit 9c22039c15
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doc/ffmpeg-formats.texi
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@ -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