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doc/ffmpeg.texi: document the new -start_at_zero option

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Rodger Combs 2014-10-21 01:23:55 -05:00 committed by Michael Niedermayer
parent 843d7bb3a6
commit 1372c55786
1 changed files with 6 additions and 0 deletions
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@ -1016,6 +1016,12 @@ processing (e.g. in case the format option @option{avoid_negative_ts}
is enabled) the output timestamps may mismatch with the input is enabled) the output timestamps may mismatch with the input
timestamps even when this option is selected. timestamps even when this option is selected.
@item -start_at_zero
When used with @option{copyts}, shift input timestamps so they start at zero.
This means that using e.g. @code{-ss 50} will make output timestamps start at
50 seconds, regardless of what timestamp the input file started at.
@item -copytb @var{mode} @item -copytb @var{mode}
Specify how to set the encoder timebase when stream copying. @var{mode} is an Specify how to set the encoder timebase when stream copying. @var{mode} is an
integer numeric value, and can assume one of the following values: integer numeric value, and can assume one of the following values: