The present application discloses a signal processing apparatus. Particularly, it discloses a signal processing apparatus comprising a first decoder for generating video data by decoding data and a second decoder for generating video data by decoding data, wherein, regarding predetermined operations for generating the video data by decoding the data, the number of the predetermined operations that can be executed by the second decoder for each unit time is lower than that of the predetermined operations that can be executed by the first decoder for each unit time.