FFMPEG-SCALER(1)										FFMPEG-SCALER(1)



NAME
       ffmpeg-scaler - FFmpeg video scaling and pixel format converter

DESCRIPTION
       The FFmpeg rescaler provides a high-level interface to the libswscale library image conversion utilities.
       In particular it allows to perform image rescaling and pixel format conversion.

SCALER OPTIONS
       The video scaler supports the following named options.

       Options may be set by specifying -option value in the FFmpeg tools. For programmatic use, they can be set
       explicitly in the "SwsContext" options or through the libavutil/opt.h API.

       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:

	   fast_bilinear
	       Select fast bilinear scaling algorithm.

	   bilinear
	       Select bilinear scaling algorithm.

	   bicubic
	       Select bicubic scaling algorithm.

	   experimental
	       Select experimental scaling algorithm.

	   neighbor
	       Select nearest neighbor rescaling algorithm.

	   area
	       Select averaging area rescaling algorithm.

	   bicublin
	       Select bicubic scaling algorithm for the luma component, bilinear for chroma components.

	   gauss
	       Select Gaussian rescaling algorithm.

	   sinc
	       Select sinc rescaling algorithm.

	   lanczos
	       Select lanczos rescaling algorithm.

	   spline
	       Select natural bicubic spline rescaling algorithm.

	   print_info
	       Enable printing/debug logging.

	   accurate_rnd
	       Enable accurate rounding.

	   full_chroma_int
	       Enable full chroma interpolation.

	   full_chroma_inp
	       Select full chroma input.

	   bitexact
	       Enable bitexact output.

       srcw
	   Set source width.

       srch
	   Set source height.

       dstw
	   Set destination width.

       dsth
	   Set destination height.

       src_format
	   Set source pixel format (must be expressed as an integer).

       dst_format
	   Set destination pixel format (must be expressed as an integer).

       src_range
	   Select source range.

       dst_range
	   Select destination range.

       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.

       sws_dither
	   Set the dithering algorithm. Accepts one of the following values. Default value is auto.

	   auto
	       automatic choice

	   none
	       no dithering

	   bayer
	       bayer dither

	   ed  error diffusion dither

SEE ALSO
       ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswscale(3)

AUTHORS
       The FFmpeg developers.

       For details about the authorship, see the Git history of the project (git://source.ffmpeg.org/ffmpeg),
       e.g. by typing the command git log in the FFmpeg source directory, or browsing the online repository at
       <http://source.ffmpeg.org>.

       Maintainers for the specific components are listed in the file MAINTAINERS in the source code tree.



						   2014-04-11					FFMPEG-SCALER(1)