| 摘要 |
In order to quicken switching of indices and reduce the time required for display after switching, a mobile phone includes a video content specifying portion to specify at least one video content, an index element generating portion to generate a thumbnail for a video content when accepting a generation instruction and to stop generation of the thumbnail when accepting a cancellation instruction, an index element generation requesting portion, in response to the event that a video content is specified by the video content specifying portion, to output a generation instruction including identification information identifying the specified video content to the index element generating portion, and a cancellation instructing portion to output a cancellation instruction to stop generation of the thumbnail for the already specified video content when a new video content is specified before completion of generation of the thumbnail for the already specified video content. |
