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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
技術領域
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 decoder system 400 that is a playback device compatible with the enhanced video stream described above decodes the enhanced video stream at the enhanced decoder (Enh. Dec) 402. The enhanced video information generated by this decoding is rendered to an enhanced plane (Enh. plane) 404. The decoder system 400 composites this enhanced video information with the high-luminance video information at the base plane (Base plane (HDRb)) 403, so as to composite videos that have the same PTS. The enhanced high-luminance video information obtained by this compositing is rendered to a Base+Enh. Plane 406. The decoder system 400 outputs this enhanced high-luminance video information to an external video output I/F such as HDMI (registered trademark), along with basic luminance information transmitted by the SEI message (HDRb), luminance enhancement information stored in the enhanced video stream, and so forth.

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