[FFmpeg-devel] [PATCH] swresample: Add support for clipping float/double to -1.0..1.0 range

Clément Bœsch u at pkh.me
Sat Oct 24 15:16:15 CEST 2015

On Fri, Oct 23, 2015 at 12:41:18PM -0400, Ronald S. Bultje wrote:
> ffmpeg -h full, searching to -sws_flags, gives this:
>   -sws_flags         <flags>      E..V.... scaler flags (default 4)
>      fast_bilinear                E..V.... fast bilinear
>      bilinear                     E..V.... bilinear
>      bicubic                      E..V.... bicubic
>      experimental                 E..V.... experimental
>      neighbor                     E..V.... nearest neighbor
>      area                         E..V.... averaging area
>      bicublin                     E..V.... luma bicubic, chroma bilinear
>      gauss                        E..V.... Gaussian
>      sinc                         E..V.... sinc
>      lanczos                      E..V.... Lanczos
>      spline                       E..V.... natural bicubic spline
>      print_info                   E..V.... print info
>      accurate_rnd                 E..V.... accurate rounding
>      full_chroma_int              E..V.... full chroma interpolation
>      full_chroma_inp              E..V.... full chroma input
>      bitexact                     E..V....
>      error_diffusion              E..V.... error diffusion dither
> OK, so first, there's so many things wrong here, we're using flags as a way
> to indicate the scaling method, and mixing up boolean flags. By the way,
> did you know "experimental" is a scaling method? Fantastic help.

> The default is "4", but we don't know what flag "4" corresponds to.

(Just sent for this ♥)


Clément B.
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