Data generation method, data reproduction method, data generation device and data reproduction device
First Claim
1. A data generation device which generates video data that covers a second luminance dynamic range wider than a first luminance dynamic range 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, the data generation device comprising:
- a generator that generates a video signal to be included in the video data using a second opto-electrical transfer function (OETF) to be referred to by a second device when the second device decodes the video data, the second device supporting reproduction of video having the second luminance dynamic range; and
a storage that stores, into video usability information (VUI) in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data, and stores, into supplemental enhancement information (SEI) in the video data, second transfer function information for identifying the second OETF.
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Abstract
A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range 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, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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Citations
9 Claims
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1. A data generation device which generates video data that covers a second luminance dynamic range wider than a first luminance dynamic range 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, the data generation device comprising:
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a generator that generates a video signal to be included in the video data using a second opto-electrical transfer function (OETF) to be referred to by a second device when the second device decodes the video data, the second device supporting reproduction of video having the second luminance dynamic range; and a storage that stores, into video usability information (VUI) in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data, and stores, into supplemental enhancement information (SEI) in the video data, second transfer function information for identifying the second OETF. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification