Patent ID: 8934536
Filing Date: 2015-01-13
Classification: H04N

Abstract:
1. Stream conversion apparatus for converting an encoded stream representing pictures into a re-encoded stream, comprising: receiving means for receiving the encoded stream, history encoding parameters utilized in past encoding processes for the encoded stream and current encoding parameters utilized upon production of the encoded stream, the history and current encoding parameters including picture type information, wherein the current encoding parameters correspond to a most recent encoding process and the history encoding parameters correspond to more than two different successively performed encoding processes prior to the encoding process of the current encoding parameters; selection means for selecting, as utilization encoding parameters for converting the received encoded stream, the history encoding parameters or the current encoding parameters that include picture type information coincident with a picture type in the re-encoded stream; and conversion means for converting the encoded stream into the re-encoded stream utilizing the selected utilization encoding parameters when the picture type information is coincident and when the picture type information is not coincident creating new encoding parameters for converting the encoded stream.