Abstract: A program is divided into unified units, and necessary instructions are downloaded for each of the unified units in advance from a main memory to a cache memory before a processor executes the instructions, to thereby reduce occurrence of a miss hit. If a miss hit occurs, an application program is switched to another one to conceal the miss hit penalty, to thereby enhance the serviceability of programs and thus achieve real time processing while swapping instructions.

Abstract: An image memory access control unit (502) judges whether or not an additional pixel required for motion compensation is necessary, the additional pixel not being included in a plurality of pixels forming an image shown by a reference block. When the additional pixel is judged to be necessary, a yet-to-be-obtained-pixel interpolating unit (503) generates at least one additional pixel, and generates a reference image to be used for motion compensation using the generated at least one additional pixel and at least a part of the image shown by the reference block. When the additional pixel is judged to be unnecessary, the yet-to-be-obtained-pixel interpolating unit (503) outputs at least a part of the image shown by the reference block as the reference image.

Abstract: A time management section (102) and a bitstream switching control section (103) are provided in a decoder control device (100), and at the end of a predetermined unit of decoding process, a decoder (110) notifies the switching control section (103) of the completion of the decoding process. The time management section (102) sets the limit time that is allowed for decoding each bitstream within the prescribed time based on the decoder capacity, the information on the number of bitstreams to be decoded, the image size information and the frame rate extracted from the bitstream. If the limit time is reached, the switching control section (103) is instructed to switch bitstreams from one to another. The switching control section (103) switches bitstreams from one to another, by receiving the switching instruction from the time management section (102) and the completion notification from the decoder (110) notifying the completion of the predetermined unit of decoding process.

Abstract: A transcodec device is provided which suppresses deterioration in image quality after coding, even when a failure and the like has occurred during the decoding process.

Abstract: A program is divided into unified units, and necessary instructions are downloaded for each of the unified units in advance from a main memory to a cache memory before a processor executes the instructions, to thereby reduce occurrence of a miss hit. If a miss hit occurs, an application program is switched to another one to conceal the miss hit penalty, to thereby enhance the serviceability of programs and thus achieve real time processing while swapping instructions.