From dec23859b040e2b76f6753789dbe7b47f2ecf497 Mon Sep 17 00:00:00 2001 From: Bela Bodecs Date: Wed, 20 Jan 2016 15:29:13 +0100 Subject: [PATCH] vf_scale: eval, param0 and param1 documentation Documentation of eval, param0 and param1 parameters Signed-off-by: Bela Bodecs Signed-off-by: Michael Niedermayer --- doc/filters.texi | 24 ++++++++++++++++++++++++ doc/scaler.texi | 1 + 2 files changed, 25 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index d8e3317d96..f5f4bfc3c5 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -9954,6 +9954,21 @@ dimension is divisible by n and adjust the value if necessary. See below for the list of accepted constants for use in the dimension expression. +@item eval +Specify when to evaluate @var{width} and @var{height} expression. It accepts the following values: + +@table @samp +@item init +Only evaluate expressions once during the filter initialization or when a command is processed. + +@item frame +Evaluate expressions for each incoming frame. + +@end table + +Default value is @samp{init}. + + @item interl Set the interlacing mode. It accepts the following values: @@ -9977,6 +9992,15 @@ Set libswscale scaling flags. See complete list of values. If not explicitly specified the filter applies the default flags. + +@item param0, param1 +Set libswscale input parameters for scaling algorithms that need them. See +@ref{sws_params,,the ffmpeg-scaler manual,ffmpeg-scaler} for the +complete documentation. If not explicitly specified the filter applies +empty parameters. + + + @item size, s Set the video size. For the syntax of this option, check the @ref{video size syntax,,"Video size" section in the ffmpeg-utils manual,ffmpeg-utils}. diff --git a/doc/scaler.texi b/doc/scaler.texi index 55b2fbe736..3e115cdda5 100644 --- a/doc/scaler.texi +++ b/doc/scaler.texi @@ -91,6 +91,7 @@ Select source range. @item dst_range Select destination range. +@anchor{sws_params} @item param0, param1 Set scaling algorithm parameters. The specified values are specific of some scaling algorithms and ignored by others. The specified values