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Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index d4fbb5ac9b..65eef89d07 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -3795,7 +3795,7 @@ Set level of input signal of original channel. Default is 0.8. @section surround Apply audio surround upmix filter. -This filter allows to produce multichannel output from stereo audio stream. +This filter allows to produce multichannel output from audio stream. The filter accepts the following options: @@ -3806,6 +3806,12 @@ Set output channel layout. By default, this is @var{5.1}. See @ref{channel layout syntax,,the Channel Layout section in the ffmpeg-utils(1) manual,ffmpeg-utils} for the required syntax. +@item chl_in +Set input channel layout. By default, this is @var{stereo}. + +See @ref{channel layout syntax,,the Channel Layout section in the ffmpeg-utils(1) manual,ffmpeg-utils} +for the required syntax. + @item level_in Set input volume level. By default, this is @var{1}. |