Patent ID: 7212570
Filing Date: 2007-05-01
Classification: H04N

Abstract:
1. A re-encoding method in which data constituted by various kinds of pictures encoded by a first encoding method is re-encoded by a second encoding method, said re-encoding method including the steps of: acquiring encoded data constituted by said various kinds of pictures; receiving conversion time from input means; selecting one of a plurality of re-encoding modes in accordance with the conversion time; re-encoding said encoded data in the selected mode; and storing said re-encoded data in storage means, wherein said plurality of re-encoding modes includes a first mode, a second mode, and a third mode, wherein said first mode extracts/decodes a predetermined kind of pictures from said various kinds of pictures and applies said second encoding method to said predetermined kind of pictures, wherein said second mode applies said second encoding method to pictures other than said extracted predetermined kind of pictures after said predetermined kind of pictures are encoded, and wherein said third mode applies said second encoding method to said acquired encoded data in acquiring order.