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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
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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
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}
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: