Note that each embodiment described below shows a specific example of the present disclosure. The numerical values, shapes, materials, structural elements, the arrangement and connection of the structural elements, steps, the processing order of the steps etc. shown in the following embodiment are mere examples, and are not intended to limit the scope of the present disclosure. Furthermore, among the structural elements in the following embodiment, structural elements not recited in the independent claims indicating the broadest concepts of the present disclosure are described as arbitrary structural elements.

Although detailed descriptions of terms, data configuration, and processing, etc., may be omitted below, specific examples thereof are based on the descriptions in NPL 1, NPL2, and NPL 3, for example.

First, the configuration of a system according to the present embodiment will be described. FIG. 1 is a block diagram illustrating the configuration of the system according to the present embodiment. The system illustrated in FIG. 1 includes data generation device 110 and data reproduction device 120.

Data generation device 110 generates video data that covers a second luminance dynamic range (for example, the HDR) wider than a first luminance dynamic range (for example, the SDR) and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range.

Data generation device 110 include video signal generator 111, encoder 112, and multiplexer 113.