Flag enabling special effects in the header of the stream descriptor atom in a Quick Time video file.

摘要

This invention applies illustratively to the editing of taken pictures by use of a QT format file. An effect track ET is made by setting a null effect having no effect advantage and an active effect having an effect advantage with regard to a video track ST associated with video data management information. The QT format file is made by setting a source track ST as a target for the effect track ET to the video track ST.