| 摘要 |
A transcoding apparatus and a transcoding method convert MPEG-2 compressed video to H.264 compressed video without increasing the circuit size while also preventing loss of image quality. The transcoding apparatus has a transcoder. The transcoder has an MPEG-2 decoder for decoding an MPEG-2 video stream, a data transform unit, and a H.264 encoder. The data transform unit converts the header information, macroblock information, and motion vector information of the macroblocks in the decoded MPEG-2 video stream to the header information, macroblock information, and motion vector information of H.264 macroblocks. The H.264 encoder encodes the MPEG-2 video stream as an H.264 video stream based on the converted information.
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