PeerStreamer

  //this should be removed after libavcodec can handle more flexible picture types & ordering

  if(s->pict_type==FF_B_TYPE && s->last_picture_ptr==NULL) return buf_size;

  if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return buf_size;

  if(  (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)

     ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)

     || avctx->skip_frame >= AVDISCARD_ALL)