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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

FIG. 30 is a flowchart illustrating the flow of processing of subtitle data in the BD-ROM player. When playback of playlist playback is started at the BD-ROM player (S701), confirmation is made that playlist playback has not ended (No in S702), and the scenario processor 305 confirms whether the subtitle display start time has arrived or not. In a case where the subtitle display start time has arrived (Yes in S703), the scenario processor 305 instructs the presentation controller 306 to draw the subtitle, and the presentation controller 306 instructs the image processor 311 to draw the subtitle. The image processor 311 follows the instruction to draw the subtitle on the image plane 209 (S704).

Also, in a case where the subtitle display start time has not arrived (No in S703), confirmation is made whether the subtitle display end time has arrived. In a case where the subtitle display end time has arrived (Yes in S705), the presentation controller 306 instructs the image processor 311 to erase the subtitle.

The image processor 311 erases the subtitle that has been drawn, in accordance with the instruction (S706).

In a case where the subtitle drawing by the image processor 311 (S704) has ended, a case where erasing of the subtitle by the image processor 311 (S706) has ended, and a case where determination is made that the subtitle display end time has not arrived (No in S705), the processing following configuration of end of the playlist playback (S702) is repeated.

Also, upon confirmation of the end of the playlist playback (Yes in S702), the subtitle related processing is force-quit.

權(quán)利要求

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