Data generation method, data reproduction method, data generation device and data reproduction device
First Claim
1. A data generation device comprising:
- a generating circuit configured to generate video data according to an Advanced Video Coding (AVC) standard and a second opto-electrical transfer function (OETF); and
a storage to store;
video usability information (VUI) including a first value indicating a first OETF; and
supplemental enhancement information (SEI) including a second value indicating the second OETF, whereinthe first OETF corresponds to an ITU-R BT.709 standard or an ITU-R BT.2020 standard,the second OETF corresponds to a hybrid gamma OETF, andthe first value is to be referred to by a decoding device that does not support the hybrid gamma 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
4 Claims
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1. A data generation device comprising:
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a generating circuit configured to generate video data according to an Advanced Video Coding (AVC) standard and a second opto-electrical transfer function (OETF); and a storage to store; video usability information (VUI) including a first value indicating a first OETF; and supplemental enhancement information (SEI) including a second value indicating the second OETF, wherein the first OETF corresponds to an ITU-R BT.709 standard or an ITU-R BT.2020 standard, the second OETF corresponds to a hybrid gamma OETF, and the first value is to be referred to by a decoding device that does not support the hybrid gamma OETF. - View Dependent Claims (2, 3, 4)
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Specification