+void ff_generate_sliding_window_mmcos(H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
+
+ h->mmco_index= 0;
+ if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
+ !(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->f.reference)) {
+ h->mmco[0].opcode= MMCO_SHORT2UNUSED;
+ h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
+ h->mmco_index= 1;
+ if (FIELD_PICTURE) {
+ h->mmco[0].short_pic_num *= 2;
+ h->mmco[1].opcode= MMCO_SHORT2UNUSED;
+ h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1;
+ h->mmco_index= 2;
+ }
+ }
+}
+