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lavfi/fade: Do not overread input buffer.
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@ -138,7 +138,9 @@ static int config_props(AVFilterLink *inlink)
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s->hsub = pixdesc->log2_chroma_w;
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s->vsub = pixdesc->log2_chroma_h;
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s->bpp = av_get_bits_per_pixel(pixdesc) >> 3;
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s->bpp = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR ?
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1 :
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av_get_bits_per_pixel(pixdesc) >> 3;
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s->alpha &= !!(pixdesc->flags & AV_PIX_FMT_FLAG_ALPHA);
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s->is_packed_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
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