[FFmpeg-devel] [PATCH] Make the scale filter only declare the supported formats

[Stefano Sabatini]

On date Wednesday 2010-01-06 21:56:30 +0100, Stefano Sabatini encoded:
> Index: libavfilter-soc/ffmpeg/libavfilter/vf_scale.c
> ===================================================================
> --- libavfilter-soc.orig/ffmpeg/libavfilter/vf_scale.c	2010-01-06 21:53:47.000000000 +0100
> +++ libavfilter-soc/ffmpeg/libavfilter/vf_scale.c	2010-01-06 21:55:39.000000000 +0100
> @@ -68,15 +68,24 @@
>  
>  static int query_formats(AVFilterContext *ctx)
>  {
> -    AVFilterFormats *formats;
> +    AVFilterFormats *in_formats  = NULL;
> +    AVFilterFormats *out_formats = NULL;
> +    enum PixelFormat pix_fmt;
> +    int ret;
>  
>      if (ctx->inputs[0]) {
> -        formats = avfilter_all_colorspaces();
> -        avfilter_formats_ref(formats, &ctx->inputs[0]->out_formats);
> +        for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
> +            if (sws_isSupportedInput(pix_fmt))
> +                if ((ret = avfilter_add_colorspace(&in_formats, pix_fmt)) < 0)
> +                    return ret;
> +        avfilter_formats_ref(in_formats, &ctx->inputs[0]->out_formats);
>      }
>      if (ctx->outputs[0]) {
> -        formats = avfilter_all_colorspaces();
> -        avfilter_formats_ref(formats, &ctx->outputs[0]->in_formats);
> +        for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
> +            if (sws_isSupportedOutput(pix_fmt))
> +                if ((ret = avfilter_add_colorspace(&out_formats, pix_fmt)) < 0)
> +                    return ret;
> +        avfilter_formats_ref(out_formats, &ctx->outputs[0]->in_formats);
>      }
>  
>      return 0;

Fixed memleak and simplified.
-- 
FFmpeg = Freak and Fundamental Minimalistic Purposeless Ecumenical Governor
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