Method and Arrangement for Transcoding

摘要: The present invention relates to a method and transcoder arrangement of transcoding bitstream representing an original video source from input format output format. comprises the steps receiving (S 10 ) with format, wherein is high fidelity format; 20 side information related said bitstream. Said comprising at least: low coding parameters optimized based on knowledge source; transform coefficients, indicative residual between decoded version further decoding 40 received generate guiding information, estimating 50 representation bit stream generated adding 60 coefficients estimated improve encoding improved