Recording medium, playback method, and playback device
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(shuō)明書
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presen_set_state identifies whether the Presentation Set is a type including all data necessary for subtitle display, as one display unit of the subtitles, or is a type storing just partial update data, such as only changing the display color.
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- bitmap_id_ref indicates the bitmap identification information (bitmap_id) of the subtitle video that this Presentation Set displays.
- window_id_ref indicates display region identification information (window_id) that this Presentation Set uses.
- bitmap_pos_x and bitmap_pos_y indicate the position of the upper-left coordinates of the bitmap specified by bitmap_id_ref.
- palette_id_ref indicates the identification information (palette_id) of the display color index color table that this Presentation Set uses.
- palette_updatejudge indicates whether or not this Presentation Set is a Presentation Set of a type that only updates the display color index color table. In a case where palette_updatejudge=1, the display region and bitmap themselves are the same as the immediately previous Presentation Set, and only the display color index color table changes. Accordingly, display control of designs where the color gradually changes, such as in karaoke, for example, can be realized without resending the bitmap that has a large data size.
- WIN (WINdow) is a data segment situated immediately after PM, and a plurality thereof may be arrayed. WIN is a data segment instructing a display region used by the Presentation Set, and includes the following data fields.
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