Data output apparatus, data output method, and data generation method

A playback apparatus connected to a display apparatus, the playback apparatus comprising:

• an acquisition unit acquiring a video signal;
• a receiver receiving first information from the display apparatus, the first information indicating a conversion scheme of luminance supported by the display apparatus;
• a luminance converter converting a luminance of the video signal;
• an output unit outputting the video signal;
• and
• a controller determining which of the display apparatus and the playback apparatus is to perform luminance conversion based on the first information and second information which indicates a conversion scheme of luminance supported by the playback apparatus;
• wherein the output unit outputs the video signal whose luminance is converted by the luminance converter based on the second information when the controller determines that the playback apparatus is to perform luminance conversion;
• and
• wherein the output unit outputs the video signal whose luminance is not converted by the luminance converter when the controller determines that the display apparatus is to perform luminance conversion.