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Recording medium, playback method, and playback device

專利號
US10867631B2
公開日期
2020-12-15
申請人
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA（US CA Torrance）
發(fā)明人
Hiroshi Yahata; Tadamasa Toma
IPC分類
G11B20/10; G11B27/32; H04N5/85; H04N9/87; G11B27/10; H04N9/804; H04N9/82; H04N5/93
技術(shù)領(lǐng)域
playback,stream,video,subtitle,hdr,luminance,playlist,vob,in,hdre
地域： CA CA Torrance

摘要

A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.

說明書

The SEI message (HDRb) is an SEI message transmitted in increments of pictures or increments of GOPs to indicate an HDR video sequence, and transmits information relating to static luminance information of the overall video sequence (VOB). An HDR video sequence as used here means a video sequence where a SEI message (HDRb) is recorded.

The SEI message (HDRe) that transmits information relating to dynamic luminesce that is more detailed does not have to be recorded in the HDR video sequence, and an HDR video sequence does not have to have even one therein. In a case where an SEI message (HDRe) exists, it is always an SEI message encoded immediately after an SEI message (HDRb), transmitting information relating to luminance in increments of pictures or increments of GOPs.

FIG. 31B illustrates the encoding order of multiple NAL units in a picture other than the first picture in the GOP (non-first access unit). In a picture that is not the first picture in the GOP, There is a run of NALs of each of one AU delimiter, 0 or one PPS, 0 or multiple SEI messages, and one or more Slices making up the picture, followed if necessary by the NALs of Filler data, End of sequence, and End of stream.

The SEI message (HDRb) or SEI message (HDRe) each store the above information, and is given to each picture according to the method illustrated in FIGS. 31A and 31B. In a case of transmitting information relating to luminesce in increments of GOPs, the SEI message (HDRb) and SEI message (HDRe) are both only given to the first picture in the GOP, and are not given to pictures that are not the first in the GOP at all.

權(quán)利要求

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