@anchor{scaler_options}

 @chapter Scaler Options
 @c man begin SCALER OPTIONS
 
 The video scaler supports the following named options.
 
 Options may be set by specifying -@var{option} @var{value} in the
 FFmpeg tools. For programmatic use, they can be set explicitly in the
 @code{SwsContext} options or through the @file{libavutil/opt.h} API.
 
 @table @option
 

 @anchor{sws_flags}

 @item sws_flags
 Set the scaler flags. This is also used to set the scaling
 algorithm. Only a single algorithm should be selected.
 
 It accepts the following values:
 @table @samp
 @item fast_bilinear
 Select fast bilinear scaling algorithm.
 
 @item bilinear
 Select bilinear scaling algorithm.
 
 @item bicubic
 Select bicubic scaling algorithm.
 
 @item experimental
 Select experimental scaling algorithm.
 
 @item neighbor
 Select nearest neighbor rescaling algorithm.
 
 @item area
 Select averaging area rescaling algorithm.
 

 @item bicublin

 Select bicubic scaling algorithm for the luma component, bilinear for
 chroma components.
 
 @item gauss
 Select Gaussian rescaling algorithm.
 
 @item sinc
 Select sinc rescaling algorithm.
 
 @item lanczos
 Select lanczos rescaling algorithm.
 
 @item spline
 Select natural bicubic spline rescaling algorithm.
 
 @item print_info
 Enable printing/debug logging.
 
 @item accurate_rnd
 Enable accurate rounding.
 
 @item full_chroma_int
 Enable full chroma interpolation.
 
 @item full_chroma_inp
 Select full chroma input.
 
 @item bitexact
 Enable bitexact output.
 @end table
 
 @item srcw
 Set source width.
 
 @item srch
 Set source height.
 
 @item dstw
 Set destination width.
 
 @item dsth
 Set destination height.
 
 @item src_format
 Set source pixel format (must be expressed as an integer).
 
 @item dst_format
 Set destination pixel format (must be expressed as an integer).
 
 @item src_range
 Select source range.
 
 @item dst_range
 Select destination range.
 
 @item param0, param1
 Set scaling algorithm parameters. The specified values are specific of
 some scaling algorithms and ignored by others. The specified values
 are floating point number values.
 

 @item sws_dither
 Set the dithering algorithm. Accepts one of the following
 values. Default value is @samp{auto}.
 
 @table @samp
 @item auto
 automatic choice
 
 @item none
 no dithering
 
 @item bayer
 bayer dither
 
 @item ed
 error diffusion dither
 @end table
 

 @end table
 
 @c man end SCALER OPTIONS