375     h->first_field          = h1->first_field;  in ff_h264_update_thread_context()
943     h->first_field           = 0;  in h264_slice_header_init()
1507     if (h->first_field) {  in h264_field_start()
1559     while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&  in h264_field_start()
1569             h->first_field = 0;  in h264_field_start()
1624     if (h->first_field) {  in h264_field_start()
1635             h->first_field = FIELD_PICTURE(h);  in h264_field_start()
1644                 h->first_field = 1;  in h264_field_start()
1650                 h->first_field = 1;  in h264_field_start()
1654                 h->first_field = 0;  in h264_field_start()
1659         h->first_field = FIELD_PICTURE(h);  in h264_field_start()
1662     if (!FIELD_PICTURE(h) || h->first_field) {  in h264_field_start()
1664             h->first_field = 0;  in h264_field_start()
1728     if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {  in h264_field_start()
2133             if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {  in ff_h264_queue_decode_slice()
2137 …} else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL…  in ff_h264_queue_decode_slice()
2149         if (!h->first_field) {  in ff_h264_queue_decode_slice()
2161     if (h->current_slice == 0 && !h->first_field) {  in ff_h264_queue_decode_slice()