Function predict_field_decoding_flag

libavcodec/h264_slice.c:2509–2517

}

static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
{
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
                      h->cur_pic.mb_type[mb_xy - 1] :
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
}

/**
 * Draw edges and report progress for the last MB row.