CN1333389C - Playlist summary information management method - Google Patents

Abstract

The invention relates to a method for managing summary information of a play directory. In the playing directory file on the file structure of the high-density rewritable optical disk (BD-RW), the recorded and stored multiple playing directory Information are recorded in other fields except the manufacturer's special data recording field by the Summary of playing directory Information, and at the same time, the playing directory is searched and read, the representative picture of the corresponding playing directory is displayed by the user's selection menu, and the representative picture representing the playing menu can be quickly displayed without searching multiple playing directory files one by one. The present invention can prevent the phenomenon that the discontinuous output display of each representative picture or the display of the play catalog menu picture takes a long time.

Description

Playlist summary information management method

(1) Technical field

The present invention relates to a method for managing play list summary information for recording and managing the recording and saving summary information (Summary of Play list Information) of most play list information on the recording medium structure of a high-density rewritable optical disc.

(2) Background technology

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 playlist information (Table Of PlayList) of the above-mentioned playlist 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.

(3) 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-mentioned purpose, the management method of play list abstract information of the present invention is to comprise: in the play list file of the recording medium file structure that can be recorded repeatedly, a plurality of play lists that are respectively recorded and saved are additionally recorded to the producer with abstract information Fields other than the field of dedicated data recording.

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 other fields other than the manufacturer-specific data recording field for management, and at the same time, the play list is searched and read, and the representative screen of the corresponding play list is output and displayed by 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 play list 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.

(4) 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. Disc 2: Optical pickup (Pick-up)

3: VDR system 4: Encoder (Encoder)

(5) specific implementation

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 (7)

1. A method for managing broadcast directory summary information is a method for recording and managing broadcast directory information, and its features include: In the replay list file of the re-recordable recording medium file structure, a plurality of play lists respectively recorded and saved are additionally recorded as summary information in a field other than the manufacturer-specific data recording field. 2. The play list abstract information management method as claimed in claim 1, characterized in that said abstract information is recorded in the file structure of BD-RW respectively, in a plurality of play list files in the PLAYLIST servo folder. Play directory information, which is recorded in the form of directory summary. 3. The method for managing playlist summary information as claimed in claim 2, wherein said summary information is recorded and stored in the 'info' directory in the VDR directory below the highest root directory in said re-recordable media file structure. .dvr' file. 4. The method for managing summary information of play list as claimed in claim 3, characterized in that said summary information is included in the manufacturer-specific data recording area recorded in said info.dvr file. 5. The method for managing playlist summary information as claimed in claim 3, wherein said summary information is playlist summary information additionally recorded in said info.dvr file. 6. The method for managing summary information of play list as claimed in claim 5, characterized in that said info.dvr file contains recording location information for additional recording of said play list summary information. 7. The playlist summary information management method as claimed in any one of claims 2 to 6, characterized in that the recently recorded playlist is marked, the last edited playlist is determined, and the most recently played playlist Marks determined at the time, at least one of which is additionally recorded in the summary information.

Images