Abstract: A coding section encodes plural pieces of video data sequentially. A measuring section measures a time period which the coding section has used for coding video data. When the time period measured by the measuring section is judged to be longer than a predetermined time based on a frame rate of the video data, a control section selects at least one piece of video data to be coded after the video data coded by the coding section out of the plural pieces of video data and generates a predetermined bit stream instead of coded data of the thus selected video data without allowing the coding section to encode the selected data.

Abstract: An address generating unit 102 generates a different write start address (w_adr) of a picture memory 105 depending on an aspect ratio and/or a display plane position of a motion picture to be displayed. A picture writing unit 104 writes data to the picture memory 105, starting at the calculated write start address (w_adr). A picture reading unit 108 uses the write start address (w_adr) as a read start address (r_adr) and reads data from the picture memory 105, starting at the read start address (r_adr).

Abstract: A coding section encodes plural pieces of video data sequentially. A measuring section measures a time period which the coding section has used for coding video data. When the time period measured by the measuring section is judged to be longer than a predetermined time based on a frame rate of the video data, a control section selects at least one piece of video data to be coded after the video data coded by the coding section out of the plural pieces of video data and generates a predetermined bit stream instead of coded data of the thus selected video data without allowing the coding section to encode the selected data.

Abstract: An address generating unit 102 generates a different write start address (w_adr) of a picture memory 105 depending on an aspect ratio and/or a display plane position of a motion picture to be displayed. A picture writing unit 104 writes data to the picture memory 105, starting at the calculated write start address (w_adr). A picture reading unit 108 uses the write start address (w_adr) as a read start address (r_adr) and reads data from the picture memory 105, starting at the read start address (r_adr).