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Diffstat (limited to 'doc/ffmpeg.texi')
| -rw-r--r-- | doc/ffmpeg.texi | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index 62d9703b7a..8418573618 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -560,27 +560,22 @@ ffmpeg -i INPUT -metadata:s:a:0 language=eng OUTPUT @item -disposition[:stream_specifier] @var{value} (@emph{output,per-stream}) Sets the disposition for a stream. -This option overrides the disposition copied from the input stream. It is also -possible to delete the disposition by setting it to 0. - -The following dispositions are recognized: -@table @option -@item default -@item dub -@item original -@item comment -@item lyrics -@item karaoke -@item forced -@item hearing_impaired -@item visual_impaired -@item clean_effects -@item attached_pic -@item captions -@item descriptions -@item dependent -@item metadata -@end table +By default, the disposition is copied from the input stream, unless the output +stream this option applies to is fed by a complex filtergraph - in that case the +disposition is unset by default. + +@var{value} is a sequence of items separated by '+' or '-'. The first item may +also be prefixed with '+' or '-', in which case this option modifies the default +value. Otherwise (the first item is not prefixed) this options overrides the +default value. A '+' prefix adds the given disposition, '-' removes it. It is +also possible to clear the disposition by setting it to 0. + +If no @code{-disposition} options were specified for an output file, ffmpeg will +automatically set the 'default' disposition on the first stream of each type, +when there are multiple streams of this type in the output file and no stream of +that type is already marked as default. + +The @code{-dispositions} option lists the known dispositions. For example, to make the second audio stream the default stream: @example |