[FFmpeg-devel] [PATCH] sws flags for ffmpeg

[Michael Niedermayer]

Hi

On Mon, May 21, 2007 at 08:52:41PM +0200, Ivo wrote:
> Hi,
> 
> The attached patch adds support for various SWS flags to ffmpeg. One can 
> select the type of scaler and override cpuflags, which is mostly useful to 
> force swscale to use the C version during benchmarking without recompiling 
> and commenting out the SIMD block of code.
> 
> It adds two command line options:
> -sws_type <type>
> -sws_cpuflag <flag>
> 
> Specifying "help" for type or flag will list all types/flags.
> 
> The options are only available with configure --enable-swscaler for obvious 
> reasons.
> 
> If the patch's reviewcycle(s) is/are over, I will update the docs.
> 
> --Ivo

> Index: ffmpeg.c
> ===================================================================
> --- ffmpeg.c	(revision 9096)
> +++ ffmpeg.c	(working copy)
> @@ -2246,6 +2246,88 @@
>      frame_pix_fmt = avcodec_get_pix_fmt(arg);
>  }
>  
> +#if defined(CONFIG_SWSCALER)

#ifdef

[...]
> +static void opt_sws_type(const char *arg) {
> +    struct sws_flags_list sws_type_list[] = {
> +        { "fast_bilinear",      SWS_FAST_BILINEAR },
> +        { "bilinear",           SWS_BILINEAR      },
> +        { "bicubic",            SWS_BICUBIC       },
> +        { "experimental",       SWS_X             },
> +        { "neighbor",           SWS_POINT         },
> +        { "area",               SWS_AREA          },
> +        { "bicubic_bilinear",   SWS_BICUBLIN      },
> +        { "gauss",              SWS_GAUSS         },
> +        { "sinc",               SWS_SINC          },
> +        { "lanczos",            SWS_LANCZOS       },
> +        { "spline",             SWS_SPLINE        },
> +        { NULL,                 0                 }
> +    };

cant AVOption be somehow used for that? same for the mmx*/... stuff ?
and i think that maybe that list should be somewhere in libswscale instead
of ffmpeg.c ...

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Opposition brings concord. Out of discord comes the fairest harmony.
-- Heraclitus
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