On Wed, Oct 24, 2018, at 11:04 AM, Paul B Mahol wrote:
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> doc/filters.texi | 45 ++++++++++++
> libavfilter/Makefile | 1 +
> libavfilter/allfilters.c | 1 +
> libavfilter/vf_stack.c | 151 ++++++++++++++++++++++++++++++++++++---
> 4 files changed, 187 insertions(+), 11 deletions(-)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 740eec670c..51e6a0fc1c 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -17798,6 +17798,51 @@ Set the scaling dimension: @code{2} for
> @code{2xBR}, @code{3} for
> Default is @code{3}.
> @end table
>
> +@section xstack
> +Stack video inputs into custom layout.
> +
> +All streams must be of same pixel format.
> +
> +The filter accept the following option:
> +
> +@table @option
> +@item inputs
> +Set number of input streams. Default is 2.
> +
> +@item layout
> +Specify layout of inputs. This option needs to be always set.
This option requires the desired layout configuration to be explicitly set by
the user.
> +This sets position of each video input in output. Each input
> +is separated by '|'. First number represents column and second row,
> +numbers are separated by '_'.
This sentence is confusing and can be made clearer by breaking it apart:
The first number represents the column, and the second number represents the
row.
Numbers start at 0 and are separated by '_'.
Everything else LGTM.
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