CN100593819C - Playing catalog abstract information management method - Google Patents

Abstract

This invention relates to a method for managing played catalog abstract information, which appends and records summary of play list information of multiple played catalog messages kept in play catalogfiles on a high density BD-RW in files different from the played catalog files to search and read the played catalog to display representative menu relating to the catalogs in the way of selected menu of users, so representative menu can be output quickly and not necessary to search for multiple played catalog files one by one.

Description

Playlist summary information management method

technical field

The patent application of the present invention is a divisional application of the patent application number 03150655.0 (management method of broadcast directory abstract information).

The present invention relates to a play list summary information management method for storing summary information (Summary of Play List Information) of most play lists in order to record and manage records on a recording medium structure of a high-density rewritable optical disc.

Background technique

Recently, rapid progress has been made in the standardization of new high-density re-recordable optical discs, such as 'Disc Rewritable' (hereinafter referred to as BD-RW), which record and play high-definition video data and high-quality audio data for a long time. Product development and market popularization.

FIG. 1 is a partial configuration diagram of an optical disc device such as a Video Disc Recorder (VDR: Video Disc Recorder) for recording or reproducing signals on a recording medium such as BD-RW. Above-mentioned optical disc device comprises: in order to read the signal on the recording medium (disc 1) as BD-RW or record the optical pick-up 2 of the data stream of external input signal processing; The VDR system 3 that converts the externally input data stream into a recordable data stream; the encoder 4 that encodes the externally input analog signal and outputs it to the above-mentioned VDR system 3 .

In addition, in the optical disc device with the above-mentioned structure, search and read the playback list information recorded in a plurality of playback list files stored in the above-mentioned BD-RW1, as shown in Figure 2, through the connected TV screen, the output is displayed as the user Select the menu (Playlist#1-Playlist#9 in the illustration). The user can select and specify any desired playback directory by selecting the menu through the key input by the user in FIG. 1 .

Therefore, in the above-mentioned VDR system 3 capable of recording data streams, through the above-mentioned process, the playback operation of reading and playing the program data streams corresponding to any one of the playlists selected and designated by the user is performed. The details are as follows.

FIG. 3 is a file structure diagram of a re-recordable disc (BD-RW). In the above-mentioned BD-RW, create at least one DVR directory under the root directory (Root) of the highest level, and create a summary information 'info.dvr' file, multiple 'menu.tidx' files, and 'mark.tidx' files under it. . For additional use, the PLAYLIST servo folder containing multiple playback list files (*.rpls, *.vpls), the CLIPINF servo folder containing multiple trimming information files (*.Clpi) and the recording and each trimming file Fixed specific file structure of STREAM servo folder for multiple recording stream files (*.m2ts).

The recording data stream files recorded in the above-mentioned data stream STREAM servo folder, such as various playback control information of the '01001.m2ts' file and the '02000.m2ts' file, are respectively recorded and stored in the ' 01001.Clpi' file and '02000.Clpi' file. In addition, the playback list information that determines the linked playback and playback order of the above-mentioned '01001.m2ts' file and the '02000.m2ts' file is recorded in the '01001.rpls' file stored in the above-mentioned PLAYLIST server folder.

Search for the play directory information (Table Of PlayList) of the above-mentioned play directory files (*.rpls, *.vpls), as shown in Figure 4, including recording in the above-mentioned 'info.dvr' file, shown in Figure 4 is info. Grammatical order diagram of dvr. Records are included in the above directory information, which provides the directory number of the number of playback directories and the file name information of the playback directory to search for each playback directory file.

In the VDR system 3 of the above-mentioned optical disc device, in the playing list information (Table Of Play List) recorded in the above-mentioned 'info.dvr' file, read and confirm the above-mentioned playing list number information and playing list file name information, and search The above-mentioned records are stored in the playback list files (*.rpls, *.vpls) of the above-mentioned PLAYLIST servo folder.

In addition, search and read from the above 'menu.tidx' file, and represent the representative picture (Thumbnail Picture) of each playback directory file searched above, as shown in Figure 2, through the connected TV screen, the user selects the menu output display .

However, like the above-mentioned representative screen representing a plurality of play list files, for example, in order to output and display a representative screen that can represent a maximum of 200 play list files each with a menu selected by the user, including the play files recorded in the above-mentioned PLAYLIST server folder The directory must be searched one by one with a considerable number in order. Therefore, it will take a long time for the screen display of the play directory menu to appear while each representative screen is output and displayed intermittently.

Contents of the invention

The purpose of the present invention is in order to solve the above-mentioned problem, proposes a kind of additional recording on the file structure of the recording medium of high-density rewritable disc (BD-RW), records and saves the summary information (Summary of Play List) of play list file Information), which represents a representative screen of multiple playlists, and provides a management method for outputting and displaying summary information of playlists more quickly when the user selects a menu.

In order to achieve the above object, the broadcast directory abstract information management method of the present invention comprises:

A method for managing playlist summary information is a method for recording and managing playlist information, comprising:

Step 1: Retrieve and read the summary information of the playback directory stored in the 'info.dvr' file in the VDR directory under the highest root directory in the recordable recording medium file structure;

Step 2: Output and display the representative screen corresponding to the corresponding playlist as a menu selected by the user according to the playlist summary information read out above.

Effect of the present invention:

Regarding the management method of play list summary information of the present invention, in the play list file on the file structure of high-density rewritable optical disc (BD-RW), a plurality of play list information respectively recorded and preserved is represented by summary information (Summary of Play List Information) is additionally recorded in a file different from the above-mentioned play list file for management, while searching and reading the play list, and outputting and displaying the representative screen of the corresponding play list with the user selection menu. It is also possible to quickly output and display a representative screen representing the play menu without searching for many play list files one by one. The present invention is a useful invention that can prevent the discontinuous output display of each representative screen, or the display of the playlist menu screen from taking a long time.

In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a partial structural diagram of an optical disc device as a video disc encoder (VDR);

Fig. 2 is a schematic diagram of a menu display screen of a playback list (Play List) of a re-recordable disc (BD-RW);

Fig. 3 is a file structure diagram of a re-recordable disc (BD-RW);

Fig. 4 is the 'info.dvr' grammatical order diagram of re-recordable disc (BD-RW);

Fig. 5 is according to the management method of summary information of playing directory of the present invention, the 'info.

Fig. 6 is a detailed information diagram about the play list summary information of the present invention;

Fig. 7 is a grammatical order diagram for additional recording of playlist summary information 'info.dvr' according to another embodiment of the playlist summary information management method of the present invention.

Explanation of symbols of important parts in the accompanying drawings:

1. CD-ROM 2: Optical pickup (Pick-up)

3: VDR system 4: Encoder (Encoder)

Detailed ways

Hereinafter, with reference to the drawings of the embodiments of the present invention, the implementation of the method for managing playlist summary information of the present invention will be described in detail.

First, in the 'info.dvr' file recorded on the file structure of the high-density rewritable disc (BD-RW), as shown in Fig. 5, in order to be able to arbitrarily record various Information is assigned a manufacturer-specific data recording field. In the method for managing playlist summary information according to an embodiment of the present invention, playlist summary information is additionally recorded in the data block within the manufacturer-specific data recording area.

Meanwhile, the above-mentioned playback list abstract information (i) is recorded in the file structure of the above-mentioned BD-RW as described with reference to FIG. The playback directory information is recorded in the form of directory and other abstracts.

In addition, the above play list summary information, as shown in Figure 6, includes records: the abbreviation of the play list name (Play List name abbreviation), the mark (Lastrecorded flag) determined when the play list was recently recorded, and the last edited play list Determined flag (Last edited flag), determined flag (Last Played flag) when playing the most recent playlist, determined flag when playback is prohibited (Playback protect flag), determined flag when recording is prohibited (Write protect flag), The flag (is played flag) determined when the playback directory has been played, the flag determined when the playback directory has been edited (isedited flag), and the flag determined when the screen exists (Representative thumbnail exit flag), recording the recording time of the playback directory and date information (Recorded time and date), the interval information of the play list (Play List duration), and the menu representative screen indication information (Representative mark ref to menu thumbnail index) representing the play list.

In addition, among the above-mentioned plurality of determined flag information, the flag information (Last recorded flag) determined during the most recently recorded playlist and the flag information (Last editedflag) determined during the most recently edited playlist, as well as the recently played playlist The tag information (Last Played flag) determined at the time of the list is to provide users with more play list information, and the newly added information can also add and record the same flag in each play list file recorded in the PLAYLIST server folder information.

In addition, the data block of the additional recording of the playback list summary information is included in the 'mpd start address' information recorded in the above-mentioned manufacturer-specific data recording area, as shown in FIG. 5 . Include the information record length of the additional records recorded under the 'summary info exist flag' recorded in the manufacturer-specific data record field above, expressed in terms of 'mpd length' information.

According to the management method of broadcast directory abstract information of the present invention, the info.dvr' file syntax (Syntax) of additional recording broadcast directory abstract information is as described with reference to Fig. 3, Fig. 4, can directly use BD-RW file structure and info.dvr 'File syntax.

In the VDR system 3 of the optical disc device described with reference to FIG. 1, search and refer to play list summary information including the manufacturer's private data recording area recorded in the above-mentioned 'info.dvr' file, and read and confirm the information of each play list.

That is, in the above-mentioned VDR system, instead of searching the playback list files (*.rpls, *.vpls) of the above-mentioned PLAYLIST servo folder one by one, each playback list information can be quickly searched and confirmed from the above-mentioned playback list summary information.

Afterwards, the representative screen representing the play list information is retrieved from the above-mentioned 'menu.tidx' file, and as shown in FIG. 2, the user selects the menu output and display through the connected TV screen or the like.

In addition, in the above-mentioned VDR system, the search refers to the newly added flag information (Last recorded flag, Last edited flag, Last Played flag) recorded in the summary information of the above-mentioned playback directory, and only the playback directory that displays the specific conditions required by the user can be selected and output, such as A representative screen of the most recently recorded playlist, the most recently edited playlist, and the most recently played playlist.

Fig. 7 is according to another embodiment of the management method of summary information of playing directory of the present invention, the 'info.dvr' file syntax (Syntax) diagram of additionally recording summary information of playing directory. The above-mentioned Play List Summary Information (TableOf Summary Play List) can be additionally recorded in other areas other than the above-mentioned maker private data (Makers PrivateData) recording area, for example between the play list recording area and the maker private data recording area shown in Figure 7 .

At this time, the recording start position information of the above-mentioned play list summary information, that is, the recording start position information (Table Of Summary Play List start address) of the play list summary information and the above-mentioned maker private data recording start position information (Makers Private Data start address) are added. address) record management in the 'info.dvr' file together.

In the above-mentioned VDR system 3, the recording start position information of the broadcast list summary information additionally recorded in the above-mentioned 'info.

Retrieve and refer to the playlist abstract information additionally recorded between the above-mentioned playlist recording area and the above-mentioned manufacturer-specific data recording area, read and confirm the information of each playlist, and output and display the selected playlist on the screen of the connected TV or the like. menu.

In the above-mentioned VDR system 3, the search refers to the newly added tag information (Last recorded flag, Last edited flag, Last Played flag) recorded in the summary information of the above-mentioned playback list, and only the playback list with specific conditions required by the user can be selected to be output, such as A representative screen of the most recently recorded playlist, the most recently edited playlist, and the most recently played playlist.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the scope of the spirit of the present invention, the above-described embodiments Changes and modifications will fall within the scope of the claims of the present invention.

Claims (3)

1. A method for managing broadcast directory summary information is a method for recording and managing broadcast directory information, and its features include: Step 1: Retrieve and read the summary information of the playback directory stored in the 'info.dvr' file in the VDR directory under the highest root directory in the recordable recording medium file structure; Step 2: Output and display the representative screen corresponding to the corresponding playlist as a menu selected by the user according to the playlist summary information read out above. 2. The method for managing playlist summary information as claimed in claim 1, characterized in that the first step is to retrieve and read the above-mentioned 'info. Playback directory summary information. 3. The method for managing playlist summary information as claimed in claim 1, characterized in that in the first step, after searching for information recorded in the above-mentioned 'info. , retrieve and read the summary information of the playback directory recorded at the location according to the location information.

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