Method for changing image coding tasks especially relating to a save/restore system, has processor which is only halted when first task is unloaded from coder-decoder and second task is being loaded

摘要

To perform a task, it is necessary to be provide context data (lines) and coding data (codec), this data being stored in the internal memory of a processor. To change the tasks, part of the processor internal memory is left empty to enable storage of context data of a second task. The storage is carried out while the first task is being processed. Thus, the processor is only halted when the first task is unloaded from the coder-decoder and the second task is being loaded into the coder-decoder.