Image data processing method

An image data processing method using an image processing device that includes

• a high-order CPU that outputs encoded image data associated with a moving picture and issues an instruction associated with reproduction of the moving picture,
• an image processing processor that has a hardware decoder capable of decoding pictures including intra coding slices and inter coding slices and decodes the encoded image data associated with the moving picture on a basis of the instruction to be input, and
• a display unit on which the moving picture is reproduced on a basis of image data decoded by the image processing processor, wherein
• in a case where a plurality of moving pictures are reproduced on the display unit on a basis of the instruction, the high-order CPU combines respective moving pictures, which are identically managed on reference buffers, at a level of slices, forms an encoded image data comprising a plurality of slices of the moving pictures by encoding the combined moving pictures as one picture, and supplies the encoded image data to the image processing processor, and the hardware decoder decodes the integrated encoded image data,
• wherein the high-order CPU is configured to select the moving pictures to be combined based on respective display timings of the moving pictures, and
• wherein, when combining moving pictures at a level of slices, the high-order CPU applies a padding slice to a moving picture, after ending display of the moving picture.

An image data processing method using an image processing device that includes

• a high-order CPU that outputs encoded image data associated with a moving picture and issues an instruction associated with reproduction of the moving picture,
• an image processing processor that has a hardware decoder capable of decoding pictures including intra coding slices and inter coding slices and decodes the encoded image data associated with the moving picture on a basis of the instruction to be input, and
• a display unit on which the moving picture is reproduced on a basis of image data decoded by the image processing processor, wherein
• in a case where a plurality of moving pictures are reproduced on the display unit on a basis of the instruction, the high-order CPU combines respective moving pictures, which are identically managed on reference buffers, at a level of slices, forms an encoded image data comprising a plurality of slices of the moving pictures by encoding the combined moving pictures as one picture, and supplies the encoded image data to the image processing processor, and the hardware decoder decodes the integrated encoded image data,
• wherein the high-order CPU is configured to select the moving pictures to be combined based on respective display timings of the moving pictures, and
• wherein, when combining the moving pictures at a level of slices, the high-order CPU repeatedly applies, for a moving picture that is temporarily stopped in a middle of display, a slice that is configured by temporal direction prediction of acquiring a last frame with no change to a period in which the moving picture is temporarily stopped.