On Fri, Sep 28, 2018 at 13:49:54 -0400, sean darcy wrote:
> So:
> -avoid_negative_ts 1 means 'make_non_negative'
> or the option is
> -avoid_negative_ts make_non_negative
A bit confusing indeed. The latter, using the named option, is
preferred. In this case, it does actually map to "1", so your former
command will also work.
$ ffmpeg -h full
lists the valid arguments, and the range they map to:
-avoid_negative_ts <int> E........ shift timestamps so they start at 0
(from -1 to 2) (default auto)
auto E........ enabled when required by target
format
disabled E........ do not change timestamps
make_non_negative E........ shift timestamps so they are non
negative
make_zero E........ shift timestamps so they start at 0
So "auto" and "disabled" are not 2 and 3, as you could think from the
docs, but rather -1 and 0. That's why using the named arguments is
better.
Moritz
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