vf_pixdesctest: make config_props work properly when called multiple times.
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@ -46,6 +46,7 @@ static int config_props(AVFilterLink *inlink)
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priv->pix_desc = av_pix_fmt_desc_get(inlink->format);
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priv->pix_desc = av_pix_fmt_desc_get(inlink->format);
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av_freep(&priv->line);
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if (!(priv->line = av_malloc(sizeof(*priv->line) * inlink->w)))
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if (!(priv->line = av_malloc(sizeof(*priv->line) * inlink->w)))
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return AVERROR(ENOMEM);
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return AVERROR(ENOMEM);
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