Moving-picture coding apparatus, method and program

摘要

Decoded is a first stream carrying moving-picture signals coded with a first coding scheme with a first intra-picture coding and an inter-picture coding technique, thus generating decoded moving-picture data. Picture-type information on each frame or field picture of the decoded moving-picture data is generated. The picture-type information indicates a first picture type or a second picture type. The first picture type is for each picture coded with the first intra-picture coding technique whereas the second picture type is for each picture coded with the inter-picture coding technique. The decoded moving-picture data is encoded with a second coding scheme with a second intra-picture coding technique, thus generating a second stream. Auxiliary information areas are created in the second stream. Each auxiliary information area is accessible in relation to each picture of the decoded moving-picture data. The picture-type information is inserted into the auxiliary information areas.