lavfi/fade: Do not overread input buffer.

10 years ago · ab3ff19f08
parent bbbc8c6188
commit ab3ff19f08
1 changed files with 3 additions and 1 deletions
--- a/libavfilter/vf_fade.c
+++ b/libavfilter/vf_fade.c
@ -138,7 +138,9 @@ static int config_props(AVFilterLink *inlink)
    s->hsub = pixdesc->log2_chroma_w;
    s->vsub = pixdesc->log2_chroma_h;

-    s->bpp = av_get_bits_per_pixel(pixdesc) >> 3;
+    s->bpp = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR ?
+             1 :
+             av_get_bits_per_pixel(pixdesc) >> 3;
    s->alpha &= !!(pixdesc->flags & AV_PIX_FMT_FLAG_ALPHA);
    s->is_packed_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;