Patent ID: 8229000

Claim:
A moving image conversion method, comprising: receiving a compression-encoded image stream, said image stream including audio data; constantly decoding the image stream to derive decoded images, converting an indicated arbitrary frame or macro block in a decoded image from among the decoded images to a converted stream in an intra-mode, transferring the converted stream in the intra-mode, and transferring a first part of the image stream but not a second part of the image stream that is used to derive the decoded image; and upon an increase in a first amount of codes in the converted stream in the intra-mode over a second amount of codes in the second part of the image steam, adjusting information on a time, at which the audio data is reproduced, in accordance with an amount by which the first amount of codes increases over the second amount of codes, such that the converted stream in the intra-mode and the first part of the image stream synchronize with the audio data by delaying the time at which the audio data is reproduced.