static int config_props(AVFilterLink *link) { YADIFContext *yadif = link->src->priv; link->time_base.num = link->src->inputs[0]->time_base.num; link->time_base.den = link->src->inputs[0]->time_base.den * 2; link->w = link->src->inputs[0]->w; link->h = link->src->inputs[0]->h; if(yadif->mode&1) link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1}); return 0; }