char *expr;
double var_values[VAR_VARS_NB], res;
int ret;
- const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
av_image_fill_max_pixsteps(over->overlay_pix_step, NULL, pix_desc);