SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    19821, 19822, 19823, 19824, 19825, 19826, 
    19827, 19828, 19829, 19830, 19831, 
    19832, 19833, 19834, 19835, 19836
  ) 
  AND status = "A"

Query time 0.00015

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ab__video_gallery",
      "access_type": "ref",
      "possible_keys": ["status", "product_id"],
      "key": "status",
      "key_length": "3",
      "used_key_parts": ["status"],
      "ref": ["const"],
      "rows": 1,
      "filtered": 100,
      "index_condition": "cscart_ab__video_gallery.`status` = 'A'",
      "attached_condition": "cscart_ab__video_gallery.product_id in (19821,19822,19823,19824,19825,19826,19827,19828,19829,19830,19831,19832,19833,19834,19835,19836)"
    }
  }
}