Image signal coding apparatus with bit stream buffer of reduced storage capacity

摘要

The number of stuff bytes to be inserted is calculated using a stuff code inserter in a difference detection circuit, inserted as a stuff code into a bit stream of coded data and stored into a bit stream buffer. The stuff code is detected in a multiplexed bit stream read out from the bit stream buffer, read of a coded bit stream is ceased and stuff bytes indicated by the stuff code are inserted into the coded bit stream. Therefore, stuff bytes generated in great amount can be easily inserted into an output bit stream even with a small data transfer capacity of the bit stream buffer.