摘要:
The BD-ROM includes, recorded therein, a PlayList that is composed of an AVClip and PlayList information, an application, and a BD-J Object. The application is a program that is written in a programming language for a virtual machine, and a life cycle during which the application can be executed by the virtual machine is specified. The BD-J Object contains a PlayList management table. The PlayList management table indicates a playback control of the PlayList that is performed during the life cycle simultaneously with the execution of the application.
摘要:
A BD-ROM playback apparatus for selecting and playing back one among text subtitle streams together with a moving picture. PSR 48-61 store Decode Capability flags whose set values indicate, for each language, whether or not a decode capability is present. Procedure executing unit 20 judges whether each text subtitle stream can be displayed, by referring to the set values of the flags. Stream selection unit 17 selects a text subtitle stream judged as being able to be decoded.
摘要翻译:一种用于在文本字幕流中与动态图像一起选择和再现一个的BD-ROM播放装置。 PSR 48-61存储解码能力标志,其设置值针对每种语言指示是否存在解码能力。 程序执行单元20通过参照标志的设定值来判断是否可以显示每个文本字幕流。 流选择单元17选择判断为能够被解码的文本字幕流。
摘要:
A BD-ROM has recorded therein an AV Clip generated by multiplexing a video stream and an interactive graphics stream. The video stream representing a motion picture made of a plurality of pictures, and the interactive graphics stream representing an interactive display to be overlayed on the motion picture, where the interactive graphics stream includes state control information (ICS) stored in a packet and a graphics data sequence (ODS), and the packet includes a time stamp that indicates a time at which the initial display is performed, the time being obtained by adding a predetermined duration to a decode ending time (PTS) of graphics data positioned midway through the graphics data sequence (S-ODSsfirst, S-ODSslast).
摘要:
After sizes of Intra pictures included in a digital stream are detected, an analysis unit 6 totals numbers of occurrences of the Intra pictures for each size to obtain an occurrence distribution of the sizes of the Intra pictures. Values “000b” to “111b” are respectively assigned to distribution ranges of the sizes of the Intra pictures. Then, an entry map, in which each Intra picture is represented by one of the values “001b” to “111b”, are to be recorded onto a recording medium in association with the assignment information.
摘要:
A BD-ROM playback apparatus simultaneously executes reproduction of a title including an AVClip and executes an application. The BD-ROM playback apparatus includes a BD-J module (35) executing an application, a playback control engine (32) for playing the AVClip belonging to one title, and a module manager (34) for controlling branching between a plurality of titles. The title includes a data management table. The data management table indicates an application read priority level for each title. The BD-J module (35) includes a java virtual machine (38), a local memory (29), and an application manager (36) for loading the application to the local memory (29). The application manager (36) reads in the application into the local memory (29) according to the read priority level of each application and the memory size of the local memory (29).
摘要:
In a playback device for playing back a moving image recorded on a recording medium while executing an application recorded on the recording medium, to improve the use efficiency of a memory bus when combining the moving image with an image relating to the application. Whether or not to combine a background image, which is used as a background of GUI graphics such as a menu or a moving picture used by the application, is determined depending on whether the moving image covers the entire background image. If the moving image covers the background image, there is no need to combine the background image with the moving image. In this case, a memory bus allocated to the reading of the background image can be used for, for example, writing the moving image read from the recording medium onto a memory. Hence the memory bus bandwidth can be effectively used.
摘要:
A BD-ROM playback apparatus for selecting and playing back one among text subtitle streams together with a moving picture. PSR 48-61 store Decode Capability flags whose set values indicate, for each language, whether or not a decode capability is present. Procedure executing unit 20 judges whether each text subtitle stream can be displayed, by referring to the set values of the flags. Stream selection unit 17 selects a text subtitle stream judged as being able to be decoded.
摘要翻译:一种用于在文本字幕流中与动态图像一起选择和再现一个的BD-ROM播放装置。 PSR 48 - 61存储解码能力标志,其设置值针对每种语言指示是否存在解码功能。 程序执行单元20通过参照标志的设定值来判断是否可以显示每个文本字幕流。 流选择单元17选择判断为能够被解码的文本字幕流。
摘要:
Video streams and an entry map are recorded on a BD-ROM in association with each other. The video stream constituting a slide show includes a plurality of IDR pictures. The entry map (EP_map) associated with the IDR pictures indicates an entry time (PTS_EP_start) of each IDR picture included in the video stream in association with an entry point (SPN_EP_start). Application_type indicates that entry information of each of pieces of picture data constituting the video stream exists in the EP_map and each piece of picture data is to be decoded independently. Playlist information includes a plurality of pieces of playback path information, each including time information designating a piece of picture data and period information indicating a period for which playback of the pieces of picture data is paused.
摘要:
A BD-ROM has recorded therein an AV Clip generated by multiplexing a video stream and a graphics stream. The graphics stream represents an interactive display to be overlayed with the video stream, and includes a sequence of three Button State groups. The interactive display includes a plurality of buttons, each of which changes from a normal state to a selected state, and from the selected state to an active state, according to a user operation. In the three Button State groups in the graphics stream, the first-order group (N-ODSs) is made of a plurality of pieces of graphics data, which represent normal states of the buttons, the second-order group (S-ODSs) is made of a plurality of pieces of graphics data, which represent selected states of the buttons, and the third-order group (A-ODSs) is made of a plurality of pieces of graphics data, which represent active states of the buttons.
摘要:
A BD-ROM has recorded therein an AV Clip generated by multiplexing a video stream and an interactive graphics stream. The video stream representing a motion picture made of a plurality of pictures, and the interactive graphics stream representing an interactive display to be overlayed on the motion picture, where the interactive graphics stream includes state control information (ICS) stored in a packet and a graphics data sequence (ODS), and the packet includes a time stamp that indicates a time at which the initial display is performed, the time being obtained by adding a predetermined duration to a decode ending time (PTS) of graphics data positioned midway through the graphics data sequence (S-ODSsfirst, S-ODSslast).