[FFmpeg-devel] [PATCH] swscale/options: switch default to bicubic

[wm4]

On Mon, 30 Sep 2013 22:20:07 +0200
Michael Niedermayer <michaelni at gmx.at> wrote:

> Suggested-by: Ronald S. Bultje
> Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> ---
>  libswscale/options.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libswscale/options.c b/libswscale/options.c
> index 2b3147b..9e8703f 100644
> --- a/libswscale/options.c
> +++ b/libswscale/options.c
> @@ -34,7 +34,7 @@ static const char *sws_context_to_name(void *ptr)
>  #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
>  
>  static const AVOption swscale_options[] = {
> -    { "sws_flags",       "scaler flags",                  OFFSET(flags),     AV_OPT_TYPE_FLAGS,  { .i64  = SWS_BILINEAR       }, 0,       UINT_MAX,       VE, "sws_flags" },
> +    { "sws_flags",       "scaler flags",                  OFFSET(flags),     AV_OPT_TYPE_FLAGS,  { .i64  = SWS_BICUBIC        }, 0,      UINT_MAX,        VE, "sws_flags" },
>      { "fast_bilinear",   "fast bilinear",                 0,                 AV_OPT_TYPE_CONST,  { .i64  = SWS_FAST_BILINEAR  }, INT_MIN, INT_MAX,        VE, "sws_flags" },
>      { "bilinear",        "bilinear",                      0,                 AV_OPT_TYPE_CONST,  { .i64  = SWS_BILINEAR       }, INT_MIN, INT_MAX,        VE, "sws_flags" },
>      { "bicubic",         "bicubic",                       0,                 AV_OPT_TYPE_CONST,  { .i64  = SWS_BICUBIC        }, INT_MIN, INT_MAX,        VE, "sws_flags" },

By the way, before this gets applied and just for consideration: Libav
have a patch that select the scaling algorithm by upscaling/downscaling.