CN100403436C - Playing programme managment method of recordable recording medium - Google Patents
Playing programme managment method of recordable recording medium Download PDFInfo
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- CN100403436C CN100403436C CNB2003101091141A CN200310109114A CN100403436C CN 100403436 C CN100403436 C CN 100403436C CN B2003101091141 A CNB2003101091141 A CN B2003101091141A CN 200310109114 A CN200310109114 A CN 200310109114A CN 100403436 C CN100403436 C CN 100403436C
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Abstract
The present invention relates to a method for managing a catalog of a recordable recording medium, which is characterized in that recognizing information and time deleting information perform a time bomb on A/V data flows using cluster as unit, and the A/V data flows with time continuity are recorded, stored and independently recorded in a playing catalog of recording media, such as high-density rerecordable compact discs (BD-RW), etc.; corresponding A/V data flows using the cluster as unit are automatically deleted at definite time by referring to the recognizing information and time deleting information while the recognizing information and time deleting information which are deleted are independently and additionally recorded, and thereby, the present invention can effectively prevent a user from unrestrictedly and repeatedly playing or illegally editing original playing programs or films, etc. which require copyright protection, charging, etc. The present invention has very high practical value.
Description
(1) technical field
The invention relates to the playing catalog management method of re-recordable recording medium.Refer in particular to and be used to realize video and the audio data stream of recording storage on recording mediums such as re-recordable optical disc carried out the playing catalog management method that timing automatic is deleted a kind of re-recordable recording medium of (time bomb) operation.
(2) background technology
Recently, new high-density re-recordable optical disc along with the voice data of video data that can a large amount of high image quality of recording storage and high tone quality, such as " Blu-ray disc rewritable " (below be called, the development rapidly of normalized production BD-RW), the exploitation of its Related product listing and popularized a general orientation into current development.
Fig. 1 is the signal record of recording medium such as BD-RW and the part-structure figure of required video disc transcripter optical disc apparatus such as (VDR:Video Disc Recorder) when playing.Above-mentioned optical disc apparatus comprises following structure: light picker 2, read the signal of record on the recording medium CD 1 such as BD-RW or the record data stream from the process signal Processing of outside input; VDR system 3, the signal that above-mentioned light picker 2 is read carries out the play signal processing, perhaps the data stream of outside input is carried out signal Processing and be converted into the data stream that is fit to write down, the duty of V DR system 3 is by the control signal control of operator's input; Scrambler 4 is decoded the simulating signal of outside input, carries above-mentioned VDR system 3.
In addition, what above-mentioned BD-RW1 went up recording storage is the A/V data stream of unit with cut-parts, such as have the CLIP 1 A/V data stream (CLIP 1 A/VSTREAM) of first cut-parts of difference recording storage of time continuity and the CLIP 2 A/V data stream (CLIP 2 A/V STREAM) of second cut-parts, as shown in Figure 2, be to record the first actual play catalogue (REAL PLAYLIST 1) and the second actual play catalogue (REAL PLAYLIST 2) that are used to read the Play Control information of playing this A/V data stream and carry out recording played by comprising.
And, can be play by the random selection of the user edlin of going forward side by side in order to make the above-mentioned actual play catalogue that is recorded management, generate record virtual playing catalog (Virtual playlist).In the above-mentioned virtual playing catalog (virtualplaylist), the sub-playing catalog (sub play item) (being used to read Clip 2 data stream of playing second cut-parts that are connected with the above-mentioned second actual play catalogue) of playing catalog (Play Item) of the main path of record management simultaneously (being used to read the Clip 1 A/V data stream of playing first cut-parts that are connected with the above-mentioned first actual play catalogue) and subpath.
Therefore, in the middle of the VDR of above-mentioned optical disc apparatus system 3, the Clip 1 A/V data stream that the above-mentioned first actual play catalogue is connected reads in the process that a series of play operation such as broadcast carry out, according to user's requirement, can select to play the Clip 2 A/V data stream that the above-mentioned second actual play catalogue is connected.
In addition, in the middle of the above-mentioned VDR system 3,, the Clip 1 A/V data stream of above-mentioned first cut-parts or the Clip 2 A/V data stream of second cut-parts are carried out part deletion or editor according to customer requirements.Such as shown in Figure 3, if deleted the partial section of the Clip 2 A/V data stream of above-mentioned second cut-parts, deleted this partial section and residual A/V data stream planning management is the Clip 2 A/V data stream of second cut-parts and the Clip 3 A/V data stream of the 3rd cut-parts by the user.Simultaneously, generate the Clip 2 A/V data stream comprise second cut-parts that record the control information of reading broadcast that is used to control this A/V data stream and the Clip 3 A/V data stream of the 3rd cut-parts.
In addition, can be play by the random selection of the user edlin of going forward side by side, generate record virtual playing catalog (Virtual playlist) in order to make the actual play catalogue that is recorded management by said process.In the above-mentioned virtual playing catalog (virtual playlist), the sub-playing catalog (sub play item) (being used to read the Clip 3 A/V data stream that broadcast is connected with above-mentioned the 3rd actual play catalogue) of playing catalog (Play Item) of the main path of record management simultaneously (being used to read the Clip 1 A/V data stream that broadcast is connected with the above-mentioned first actual play catalogue) and subpath.
Therefore, in the middle of the VDR of above-mentioned optical disc apparatus system 3, the Clip 1 A/V data stream that the above-mentioned first actual play catalogue is connected reads in the process that a series of play operation such as broadcast carry out, according to user's requirement, can select to play the Clip 3 A/V data stream that above-mentioned the 3rd actual play catalogue is connected.
But; because above-mentioned disk player can be according to user's requirement; to have time continuity what be recorded management is that the A/V data stream of unit is edited arbitrarily with cut-parts; but also can to above-mentioned be that the A/V data stream of unit is carried out repeat playing with cut-parts; so just exist the user can unconfined repeat playing, perhaps illegal editor's request for utilization copyright protection and require the intrinsic broadcast program of expense or the problem of film.Also do not find a solution that prevents that effectively this type of thing from taking place now.
(3) summary of the invention
The present invention proposes in order to address the above problem.The object of the present invention is to provide a kind of playing catalog management method of re-recordable recording medium; in order to realizing timing automatic deletion to the A/V data stream of corresponding cut-parts unit, with realize to recording storage on the high-density recordable optical disc recording mediums such as (BD-RW) intrinsic broadcast program and the charge and the copyright protection of film.
To achieve these goals, the playing catalog management method of re-recordable recording medium of the present invention is characterized in that comprising following step:
First step, what have time continuity at the re-recordable recording medium is the data stream of unit with cut-parts;
Second step, being used for to be the management information of the data stream of unit in the later automatic deletion of certain hour with described cut-parts, addition record is to playing catalog.
In addition, the playing catalog management method of re-recordable recording medium of the present invention is characterized in that comprising following step:
First step, retrieval confirm that on the re-recordable recording medium be the data stream of unit with having recording of time continuity with cut-parts, comprise the timing automatic delete flag and the deletion temporal information of record in the corresponding playing catalog;
Second step, with reference to above-mentioned automatic delete flag and deletion temporal information, determine above-mentioned with cut-parts be unit data stream automatic deletion whether.
The effect of invention:
The playing catalog management method that writes down recording medium of the present invention that has said structure and as above operate has very high practical value.It is in the playing catalog of high density re-recordable optical disc recording mediums such as (BD-RW); separately record have time continuity what be recorded storage is the A/V data stream of unit with cut-parts; carry out the identifying information and the deletion temporal information of timing automatic deletion (Time bomb); when the identifying information of this timing automatic deletion (Timebomb) and deletion temporal information are carried out independent addition record; with reference to this identifying information and deletion temporal information; to corresponding with cut-parts be unit the A/V data stream carry out the timing automatic deletion, thereby can prevent effectively that the user is to requiring intrinsic broadcast program such as copyright protection and chargeization or film etc. and carry out unconfined repeat playing or illegally editing.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the part-structure figure of video disc transcripter optical disc apparatus such as (VDR:Video Disc Recorder);
What Fig. 2 and Fig. 3 were that re-recordable optical disc (BD-RW) goes up recording storage is the A/V data stream and the actual play catalogue of unit with cut-parts, and the connection status figure between the virtual playing catalog;
Fig. 4 is the file structure figure of re-recordable optical disc (BD-RW);
Fig. 5 be according to the playing catalog management method addition record in the embodiments of the invention actual play catalogue grammer (syntax) figure of timing automatic deleted marker (time-bomb-flag);
The embodiment operational flowchart of the playing catalog management method of Fig. 6 position re-recordable recording medium of the present invention.
The symbol description of major part in the accompanying drawing:
1, CD 2, light picker (pick up)
3, VDR system 4, scrambler (encoder)
(5) embodiment
Below, the embodiment to the playing catalog management method of re-recordable recording medium of the present invention is elaborated with reference to the accompanying drawings.
At first, Fig. 4 is the file structure figure of re-recordable optical disc (BD-RW).Use following fixing specific file structure (file structure) among the above-mentioned BD-RW, at least more than one DVR catalogue (DIRECTORY) is set below the root directory (Root directory) of upper, " info.dvr " file is set in this catalogue, " menu.tidx " and " mark.tidx " file, in addition, comprise a plurality of playing catalog file (the * .rpls of record, * playlist subdirectory .vpls), with the cut-parts information sub-directory (clipinf subdirectory) that comprises a plurality of cut-parts message files (* .clpi), and comprise and writing down the data stream sub-directory (stream subdirectory) that the corresponding a plurality of cut-parts files of each cut-parts message file have promptly write down the cut-parts file (* .m2ts) of the A/V data stream of MPEG2 mode.
In addition, the cut-parts file that comprises record on the above-mentioned data stream sub-directory, such as the various Play Control information of ' 01001.m2ts ' file and ' 02000.m2ts ' file, recording storage is to ' 01001.clpi ' file that is included on the above-mentioned clipsubdirectory, in ' 02000.clpi ' file respectively.And the playing catalog information that is connected broadcast and playing sequence that determines above-mentioned ' 01001.m2ts ' file and ' 02000.m2ts ' file can store on ' 01001.rpls ' that is included in the above-mentioned playlist subdirectory.
In addition, above-mentioned playing catalog file (* .rpls, * .vpls), such as, in the syntactic structure (syntax) of actual play catalogue file (xxx.rpls), as shown in Figure 5, comprise and record start context, playing catalog start address, playing catalog label start address, manufacturer's restricting data reference position, and user's port application message playing catalog information such as (UIAppInfo playlist).Comprise the editor who records 1 bit in the embodiment of the invention in above-mentioned user's application message playing catalog (UIAppInfo playlist) and prevent mark (edit-protect-flag).
That is, recording storage require copyright protection and charge what have time continuity is that the timing automatic delete flag of the A/V data stream of unit is set to ' 1 ' with cut-parts, prevent that the user from carrying out any unconfined repeat playing or editor to it.At this moment, addition record is used for the deletion temporal information that the timing automatic deletion changes with cut-parts the A/V data stream that is unit.The above-mentioned zone, spatial domain (reserved-for word-align) that prevents to edit one 4 bit that is marked at the literal that is used for arranging certain record size occupies uses 1 bit, perhaps also can occupy in other vacant zone and use 1 bit.
In addition, above-mentioned deletion temporal information can addition record be and play the irrelevant absolute time information of zero-time, and perhaps addition record begins the relative time information that calculates later on for playing zero-time, can select any setting according to the user.
In addition, the VDR system 3 of optical disc apparatus prevents that above-mentioned editor mark is set at 1 o'clock described with reference to Figure 1, just carries out the operation of some, and making the user partly to delete arbitrarily or to edit with cut-parts is the A/V data stream of unit.
Fig. 6 is the embodiment operational flowchart of the playing catalog management method of re-recordable recording medium of the present invention.
Referring to Fig. 6,1, operating process of the present invention is elaborated simultaneously.
Flow process begins.
S30, in VDR system 3, receive the user to recording storage what have time continuity is that the A/V data stream of unit is carried out the part deletion with cut-parts, perhaps this selection being appointed as what have time continuity is the requirement that playing catalog item in the virtual playing catalog of A/V data stream of unit or sub-playing catalog item etc. carry out editing operation with cut-parts.
S31, it is the A/V data stream of unit with cut-parts that above-mentioned editing operation retrieves above-mentioned, then, retrieval confirms to comprise the application message playing catalog (UIAppInfo playlist) of record in this playing catalog.
S32, and, above-mentioned VDR system 3, at first retrieval is confirmed to comprise the timing automatic delete flag (time_bomb_flag) that records 1 bit in the embodiment of the invention in above-mentioned user's application message playing catalog (UIAppInfo playlist).
Does S33 judge that above-mentioned timing automatic delete flag (time_bomb_flag) is " 1 "?
S34, if above-mentioned timing automatic delete flag (time_bomb_flag) was set to 1 o'clock, just retrieval confirms that this timing automatic delete flag is connected the deletion temporal information (expire_time_info.) of common storage.
S35, then, deletion temporal information according to above-mentioned retrieval affirmation, such as the conduct absolute time information irrelevant with playing zero-time is recorded the deletion time of storage, (expire time1) promptly expires the time, judge whether consistently with the current real time (current time), or time more Zao, judge just whether current actual play time surpasses time expiration than the current time?
S36; if current actual play time surpasses time expiration; just judging above-mentioned is that the A/V data stream of unit is the data stream in the intrinsic broadcast program of requirement copyright protection or charge or the film etc. with cut-parts, thereby this A/V data stream is deleted processing, and flow process finishes.
S37, in addition, among the above-mentioned flow process S33, if judge that timing automatic delete flag (time_bomb_flag) that VDR system 3 confirms by the said process retrieval is when being set to ' 0 ', judge in the perhaps above-mentioned S35 flow process according to deletion temporal information (expire_time_info.), when current actual play time does not surpass time expiration, carry out general play operation, finish to flow process according to user's requirement.
As a reference, above-mentioned deletion temporal information (expire_time_info.) as above-mentioned be that the A/V data stream of unit is when being played the relative time information that calculates after the beginning and carrying out addition record with cut-parts, this calculates in above-mentioned VDR system 3 is that the A/V data stream of unit is play the later time of beginning with cut-parts, and the time and the deletion temporal information of this calculating compared.
And, later time of above-mentioned calculated broadcast is consistent with above-mentioned deletion temporal information or when surpassing above-mentioned deletion temporal information (expire-time-info.), will to above-mentioned be that the A/V data stream of unit is deleted processing with cut-parts, on the contrary, if the above-mentioned later time of calculated broadcast will be carried out general play operation according to customer requirements when being less than above-mentioned deletion temporal information.
As a reference; additional record is in order to make that the user can not be at random in above-mentioned application message playing catalog (UIAppInfo playlist); to corresponding be that the A/V data stream of unit is deleted or edited with cut-parts; thereby the editor who is provided with prevents after the mark (edit_protect_flag); make this editor prevent that mark (edit-protect-flag) and deletion temporal information (expire_time_info.) have mutual continuity, thereby can effectively realize the copyright protection and the charge of intrinsic broadcast program and film etc.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (7)
1. the playing catalog management method of a re-recordable recording medium is characterized in that comprising following step:
First step, what have time continuity at the re-recordable recording medium is the data stream of unit with cut-parts;
Second step, being used for to be the management information of the data stream of unit in the later automatic deletion of certain hour with described cut-parts, addition record is to playing catalog.
2. the playing catalog management method of re-recordable recording medium as claimed in claim 1 is characterized in that:
Described management information is that being used to specify described is whether the data stream of unit carries out behind the certain hour flag information and the deletion temporal information of deletion automatically with cut-parts.
3. the playing catalog management method of re-recordable recording medium as claimed in claim 2 is characterized in that:
Described deletion temporal information is to be that the absolute time information or the relative time information of the data stream of unit carries out addition record with cut-parts as being used for timing automatic deletion described.
4. the playing catalog management method of re-recordable recording medium as claimed in claim 1 is characterized in that:
Described management information be addition record with described be in the user port application message playing catalog of the corresponding actual play catalogue of data stream of unit with cut-parts.
5. the playing catalog management method of a re-recordable recording medium is characterized in that comprising following step:
First step, retrieval confirm that on the re-recordable recording medium be timing automatic delete flag and the deletion temporal information that comprises record in the corresponding playing catalog of data stream of unit with having recording of time continuity with cut-parts;
Second step with reference to above-mentioned timing automatic delete flag and deletion temporal information, determines that above-mentioned is whether the timing automatic of the data stream of unit deletes with cut-parts.
6. the playing catalog management method of re-recordable recording medium as claimed in claim 5 is characterized in that:
Described first step is to be limited to the described deletion temporal information of retrieval affirmation when described timing automatic deleted marker is ' 1 '.
7. the playing catalog management method of re-recordable recording medium as claimed in claim 5 is characterized in that:
Described second step is consistent with the current time in described deletion temporal information, and perhaps under the situation of the time that shifts to an earlier date than the current time, deleting above-mentioned automatically is the data stream of unit with cut-parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101091141A CN100403436C (en) | 2003-12-05 | 2003-12-05 | Playing programme managment method of recordable recording medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101091141A CN100403436C (en) | 2003-12-05 | 2003-12-05 | Playing programme managment method of recordable recording medium |
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| CN1624787A CN1624787A (en) | 2005-06-08 |
| CN100403436C true CN100403436C (en) | 2008-07-16 |
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| CNB2003101091141A Expired - Fee Related CN100403436C (en) | 2003-12-05 | 2003-12-05 | Playing programme managment method of recordable recording medium |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8644682B2 (en) * | 2005-08-29 | 2014-02-04 | Sony Corporation | Playable content |
| CN101072324B (en) * | 2007-04-17 | 2010-11-24 | 华为技术有限公司 | Multicast recording method, system and service control device and server |
| CN101667180B (en) * | 2008-09-03 | 2012-10-17 | 神讯电脑(昆山)有限公司 | System and method for space management of database |
| US10349141B2 (en) | 2015-11-19 | 2019-07-09 | Google Llc | Reminders of media content referenced in other media content |
| CN108140056A (en) * | 2016-01-25 | 2018-06-08 | 谷歌有限责任公司 | Media program moment guide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341936A (en) * | 2000-07-31 | 2002-03-27 | 索尼公司 | Recording/playing device and content management method |
| US20030225784A1 (en) * | 2002-05-30 | 2003-12-04 | Mi Hyun Kim | Method for managing play lists on a rewritable storage medium |
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2003
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341936A (en) * | 2000-07-31 | 2002-03-27 | 索尼公司 | Recording/playing device and content management method |
| US20030225784A1 (en) * | 2002-05-30 | 2003-12-04 | Mi Hyun Kim | Method for managing play lists on a rewritable storage medium |
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