static int config_input(AVFilterLink *inlink)
{
DrawBoxContext *drawbox = inlink->dst->priv;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
- drawbox->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
- drawbox->vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
+ drawbox->hsub = desc->log2_chroma_w;
+ drawbox->vsub = desc->log2_chroma_h;
if (drawbox->w == 0) drawbox->w = inlink->w;
if (drawbox->h == 0) drawbox->h = inlink->h;