Apparatus, method, and medium storing a program, that reduce playback time differences when joining moving images of different formats

摘要

Moving image editing device, method, and storage medium storing a program provide a smart rendering scheme to minimize the variation of playback time, even when editing moving image data that does not match the save format. The format of the moving image data is compared with the save format. The moving image data is converted into the save format. The moving image data is sequentially joined and saved. A portion or the entirety of the moving image data itself is output if the format of the moving image data matches the save format, or the data encoded into the save format after decoding a portion or the entirety of the moving image data is output if the format of the moving image data does not match the save format. The device repeats sequential joining so that the difference in the playback time with the moving image data is minimized.