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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

Note that in the present embodiment, the programming functions of the virtual player have been described as being based on JavaScript (registered trademark), Other programming functions may be used, such as B-Shell used in UNIX (registered trademark) OS or the like, Perl Script, and so forth, instead of JavaScript (registered trademark). In other words, the programming language in the present disclosure is not restricted to JavaScript (registered trademark).

Example of Program

FIGS. 25 and 26 are diagrams illustrating an example of a program in the event handler. FIG. 25 is a diagram illustrating an example of a program in an event handler according to control of a menu screen having two selection buttons.

The program to the left side in FIG. 25 is executed using a time event at the beginning of cell (PlayList #1.Cell #1). “1” is set to GPRM(0) here first, which is one of the general parameters. GPRM(0) is used in this program to identify a button that is selected. A state where the button [1] situated on the left side has been selected is held as the initial state.

Next, drawing of a PNG is performed for each of button [1] and button [2] using “Draw”, which is a drawing function. The button [1] is drawn as a PNG image “1black.png” with coordinates (10, 200) as the origin (upper left end). The button [2] is drawn as a PNG image “2white.png” with coordinates (330, 200) as the origin (upper left end).

At the end of this cell, the program to the right side in FIG. 25 is executed using a time event. A Link function is used here to instruct playing again from the beginning of this cell.

權(quán)利要求

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