SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    15943, 15951, 15952, 15956, 15958, 15959, 
    15944, 15960, 15961, 15962, 15966, 
    15957, 15965, 15945, 15968, 15946, 
    15947, 15949, 15950, 12520
  ) 
  AND status = "A" 
  AND storefront_id IN (1, 0)

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ab__video_gallery",
      "access_type": "ALL",
      "possible_keys": ["status", "product_id"],
      "rows": 77,
      "filtered": 25.97402573,
      "attached_condition": "cscart_ab__video_gallery.product_id in (15943,15951,15952,15956,15958,15959,15944,15960,15961,15962,15966,15957,15965,15945,15968,15946,15947,15949,15950,12520) and cscart_ab__video_gallery.`status` = 'A' and cscart_ab__video_gallery.storefront_id in (1,0)"
    }
  }
}