CN101015016A - Method and apparatus for enabling optical disc played in a particular logical format - Google Patents
Method and apparatus for enabling optical disc played in a particular logical format Download PDFInfo
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- CN101015016A CN101015016A CN 200580030311 CN200580030311A CN101015016A CN 101015016 A CN101015016 A CN 101015016A CN 200580030311 CN200580030311 CN 200580030311 CN 200580030311 A CN200580030311 A CN 200580030311A CN 101015016 A CN101015016 A CN 101015016A
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Abstract
A method and device for enabling an optical disc to be played in accordance with a particular optical disc format. With the object of solving the problem of compatibility in playing optical discs caused by the difference between optical disc formats, the method acquires the meta-data of the content to be played and the navigation information in the optical disc, and converts the obtained meta-data into the meta-data corresponding to the particular format. Subsequently, the navigation information corresponding to the particular optical disc format requirement is generated on the basis of the acquired navigation information and the meta-data corresponding to the particular format acquired by conversion, so that the optical disc playing device can play the optical disc in accordance with the particular optical disc format.
Description
Technical field
The present invention relates to optical storage field, relating in particular to a kind of CD that makes can be according to the method and the device of certain logic form broadcast.
Background technology
In the field of optical storage technology of develop rapidly, many physics and disk format logic, physical format such as CD, VCD, DVD, Blu-ray form etc., logical format such as CD-audio frequency, picture CD, VCD, SVCD, DVD form etc. have been emerged in large numbers.Each disk format is all corresponding to a whole set of corresponding loaded down with trivial details standard.
No matter be the difference of physical format, or the difference of logical format, all might make Disc player can not play a CD.Along with the release that new disk format emerges in an endless stream, the problem of format compatibility of Yin Faing is also more and more outstanding therefrom.For catching up with the trend of new disk format development, CD and Disc player producer, CD content provider and consumer frequent the updating the equipment of having to carried out new investment and caused the waste of resource.
The way of traditional solution disk format compatibling problem is that the application module corresponding to the different discs form is superimposed, and is installed in the disk player, thereby can adapts to the broadcast request of each corresponding disk format.The way of this mechanical laminating module makes the Play System structure numerous and jumbled, and the relation between each application module is not that combining of gain arranged mutually, and just simply pieces together.When playing the CD of a specific format, the vacancy rate of application module is than higher.
Therefore, need provide a kind of CD that makes to play CD according to the method and apparatus of certain logic form broadcast with this certain logic form.
Summary of the invention
The purpose of this invention is to provide a kind of CD that makes can be according to the method and the device of certain logic form broadcast, to overcome deficiency of the prior art.
According to one embodiment of present invention, make CD comprise step: a) to obtain the information on the described CD, comprise the descriptor of content to be played according to the method that the certain logic form is play; B) changing the descriptor of being obtained is the descriptor that meets described specific format; And c), generates the Play Control information that meets described specific format, so that described CD can be play according to described specific format according to the described descriptor that meets specific format.In step a), the information of obtaining from described CD can also comprise Play Control information, in this case, meet the Play Control information of specific format described in the step c) according to described descriptor and the described Play Control information generation of obtaining that meets specific format from CD.
According to another embodiment of the invention, CD can be comprised according to the device that the certain logic form is play: a deriving means, be used to obtain the information on the described CD, comprise the descriptor of content to be played; A conversion equipment, being used to change the descriptor of being obtained is the descriptor that meets described specific format; With a generating apparatus, be used for the descriptor that meets specific format according to described, generate the Play Control information that meets described specific format, so that described CD can be play according to described specific format.Wherein, the information that described deriving means obtains can also comprise the Play Control information on the described CD, and the described Play Control information that meets specific format generates according to described descriptor and the described Play Control information of obtaining from CD that meets specific format.
According to embodiments of the invention, a kind of disk player also is provided, comprising: a disc accessing is used to read the device that information on the CD and can play CD according to the certain logic form; Wherein, the described CD that makes can comprise a deriving means according to the device that specific format is play, be used for obtaining corresponding information according to the information that described reading device reads from described CD, the descriptor that comprises content to be played, a conversion equipment, being used to change the descriptor of being obtained is the descriptor that meets described specific format, with a generating apparatus, be used for the descriptor that meets specific format according to described, generation meets the Play Control information of described specific format, so that described CD can be play according to described specific format.Wherein, the information that described deriving means obtains can also comprise the Play Control information on the described CD, and the described Play Control information that meets specific format generates according to described descriptor and the described Play Control information of obtaining from CD that meets specific format.
Can be by the CD that makes provided by the invention according to the apparatus and method of certain logic form broadcast, the descriptor of Play Control information on the CD and play content is converted to the Play Control information that meets specific format, thereby the CD with specific format can be played according to specific format.
By hereinafter with reference to accompanying drawing to description and claim that the present invention did, other purposes of the present invention and achievement will be apparent, and can comprehensive understanding be arranged to the present invention.
Description of drawings
By embodiment, the present invention is done further detailed explanation with reference to accompanying drawing.
Fig. 1 is the process flow diagram that makes the embodiment of the method that CD can play according to the certain logic form according to of the present invention;
Fig. 2 is a disc-playing system synoptic diagram according to an embodiment of the invention;
Fig. 3 is the synoptic diagram according to an embodiment of format conversion apparatus among Fig. 2 240; With
Fig. 4 is a synoptic diagram of playing a SVCD (SuperVCD) format disc with generic logic format (GD) disk player.
In all above-mentioned accompanying drawings, identical label represents to have identical, similar or corresponding feature or function.
Embodiment
Design of the present invention is as follows: it is different with the describing mode of Play Control information (navigation information) that different disk formats is treated the descriptor of play content (meta-data).A CD that does not have specific format can be play according to specific format, and just needing becomes descriptor and the Play Control information that meets specific format accordingly with the descriptor and the Play Control information translation of the content to be played on this CD.According to descriptor that meets specific format and Play Control information this CD can be play according to specific format.
In the following description, will a CD that does not have generic logic format can be described according to the generic logic format broadcast for example.Generic disc (Generic Disc) is that Koninklijke Philips Electronics N.V is 1506949 at publication number, application number is 02156141.9, and the applying date is a kind of disk format that proposes in the Chinese patent application " CD with generic logic format " on Dec 12nd, 2002.This optical disc logic format is independent of physical format, generic logic format file (as index file) wherein includes the corresponding descriptor to the content to be played on the CD, be used for explaining CD content to be played to disk player, so that Disc player can play according to the requirement of each content to be played, and the physical format that is no longer dependent on CD is play.The disk player of generic logic format can be supported the broadcast application file of generic logic format, and therefore the playing platform of the Java Virtual Machine that provides support operation can be used to play the CD with generic logic format.
Fig. 1 is the process flow diagram that makes the embodiment of the method that CD can play according to the certain logic form according to of the present invention.Support whether certain logic form (step S110) of form that the playing device of specific format (as generic logic format) will at first judge CD.Usually, according to the format specification of CD, the information of corresponding description disk format is arranged all generally on CD, for example, in read-only optical disc, playing device will be judged the kind of disc by the relevant information of being stored in the file system that reads Lead-In Area.By the judgement to disk format, can disk player can be determined and directly play CD content according to specific format.
If the form of CD is not specific format (as a generic disc), promptly playing device can not be play this CD content according to common player method, and playing device will be retrieved canned data on the CD (step S120) so.By retrieval, the descriptor of the content to be played that playing device can obtain storing on the CD and Play Control information etc., for example, the tabulation of content to be played and some descriptors etc. on the storage directory of information, the CD on the CD.
Then, playing device obtains the descriptor (step S130) of Play Control information and content to be played from retrieving information.Play Control information on the CD comprises catalogue file, dvd playback sequential file, light disk retrieval file etc.These information have important navigation function for the broadcast of CD.In addition, in the disc making process, there are some descriptors to reflect information such as the storage feature of content to be played and broadcast request usually.These descriptors comprise coded format, sharpness, broadcast zero-time, play concluding time, mean bit rate, synchronizing information, broadcast order etc., also comprise decoded information (for example decoding process, the required application program of decoding and Application Type etc.).
In step S130, the information that obtain comprises that those are according to the required information of specific format broadcast CD, as coded format, synchronizing information, broadcast order etc.
Then, according to the code requirement of particular optical disc format (as generic logic format), playing device is converted into the descriptor (step S140) that meets specific format with the descriptor of the content to be played obtained.In the different disk formats, the descriptor of program to be broadcast has different describing modes, therefore, a CD that does not have specific format can be play according to specific format, the descriptor that just need will not meet specific format converts to and meets specific format.To the conversion of descriptor can be conversion to the describing mode of program to be broadcast characteristic information or broadcast request.For example, on the CD of a SVCD (Super VCD) form, the descriptor of content to be played is to be described in the mode that meets the SVCD form, if play this CD according to generic logic format, the desired describing mode of Play Control file (XML file, i.e. Extensible Markup Language file) that so just needs the various descriptors on this CD are converted to according to generic logic format is described.
Then, according to descriptor that meets specific format that is converted to and the Play Control information obtained from CD, generate the Play Control information (step S150) that meets specific format.The broadcast process of Play Control information Control program and control reproduction time, position relation of each program etc.In the playing programs process, the Play Control file need call corresponding program according to the descriptor of program.Different disk formats also is different to the description of Play Control information, and CD can be play according to specific format, need meet and meet specific format Play Control information accordingly.Generally include the Play Control file in the Play Control information, as in generic logic format, Play Control information comprises the XML file that meets generic logic format.
The Play Control file that meets specific format can generate as follows.The template of the Play Control file that meets particular optical disc format can prestore in playing device.In transfer process, playing device can meet the template of the Play Control file that meets specific format that the descriptor of specific format prestored according to joining of correspondences such as attribute and feature with the Play Control information obtained from CD with through conversion, thereby generates the Play Control file.Certainly, can also change by other modes, for example according to the specification and requirement of particular optical disc format, the code requirement of employed language, and the attribute of the information of being obtained etc. makes information of obtaining from CD and the descriptor that meets specific format after conversion generate the Play Control information that meets specific format.
In the XML of generic logic format Play Control file, the original Play Control information of obtaining from CD and the descriptor of content to be played will be organized layout according to the code requirement of generic logic format and the requirement of broadcast process (time and position relation), so that content to be played can be play according to specific format and according to time of determining and position relation.
At last, play CD (step S160) according to the Play Control information that meets specific format that generates.Because the content to be played that does not meet particular optical disc format on the CD, the conversion by descriptor and meet the generation of the file of particular optical disc format can be received by disk player, so can be play by this disk player.
If the content to be played on the CD is fewer, for example have only a content to be played, playing device only needs just can generate the Play Control file that meets specific format according to the descriptor that meets the content to be played of specific format after conversion.If the program on the CD is many, just not only needs according to the descriptor that after conversion, meets specific format so usually, but also need to generate the dvd playback control documents according to the Play Control information of obtaining from CD.
Fig. 2 is a disc-playing system synoptic diagram according to an embodiment of the invention.Present embodiment supports that by one the CD of a non-generic logic format of playing device broadcast of generic logic format dvd playback is that example is described.As shown in Figure 2, CD 210 is CDs of non-generic logic format, can be the CD of CD format disc, DVD format disc or the extended formatting sold in the market.
The same with other CDs, on the CD 210 relevant for some comprehensive descriptors of institute's memory contents, as optical disc format information, optical disc directory information etc., also store the descriptor of content to be played and content to be played, for example the coded format of content, sharpness, broadcast zero-time, broadcast concluding time, mean bit rate etc.But the descriptor and the Play Control message file that do not have the desired content to be played of generic disc on CD 210, so CD 210 can't use the playing device of existing generic logic format to play.
Fig. 3 is the synoptic diagram of a format conversion apparatus 240 according to an embodiment of the invention.Device 240 comprises a deriving means 242, be used to obtain the information on the CD, the descriptor that comprises Play Control information and content to be played, as optical disc format information, the directory information of CD, the play sequence information of CD and the coded format of content to be played, sharpness, broadcast zero-time, broadcast concluding time, mean bit rate etc.Deriving means 242 can selectively obtain in these descriptors descriptor according to the particular optical disc format needs according to the method for routine.
On common generic logic format CD, generally also comprise some broadcast application files, thereby can explain description document and can call the application program that the corresponding decoding program is play CD smoothly according to generic disc.Because do not store these files on the non-generic disc CD, so, also need to store these in the disk player 220 and should be stored in broadcast application file on the generic logic CD usually in order to play smoothly the CD of non-generic disc.In common generic logic format playing device, generally should store necessary application file.
By installing 240, playing device 220 just can be play the CD 210 with specific format.
Fig. 4 is a synoptic diagram of playing a SVCD (super VCD) format disc with the generic logic format disk player.Signal is file directory information on the SVCD CD in the square frame 410, and wherein, root directory comprises the Play Control message catalog of SVCD, with the audio-video document catalogue of MPEG2 coded system storage and fragment file directory etc.Comprise a message file (INFO.SVD), inlet list file (ENTRIES.SVD), offset-lists file (LOT.SVD), play sequence description document (PSD.SVD), retrieving files (SEARCH.DAT), audio frequency and video trail file (TRACK.SVD) etc. in the SVCD Play Control message catalog again.Then comprising the audio-video document code stream information of code storage in the audio-video document catalogue with the storage of MPEG2 coded system, also is content to be played on the SVCD CD.Then comprise some clip code stream information in the fragment file directory.
Signal is the message file that meets the generic logic format requirement that the information translation in the square frame 410 is formed in the square frame 420.MPEG2 coding audio-video document 1 on the SVCD CD is listed in respectively in descriptor file frame 430 and the content ASCII stream file ASCII frame 440 to be played by the information of demultiplexing (Demultiplexer) conversion: the audio file of the audio stream descriptor of audio-video document 1, the video flowing descriptor of audio-video document 1, audio-video document 1 and the video file of audio-video document 1.Conversion to other file contents to be played and descriptor can be according to carrying out the conversion of file 1 is similar.
Disk player is with the descriptor of SVCD Play Control message file and content to be played, according to XML controls playing file 450 of requirement generation of generic disc standard.XML controls playing file 450 can be to generate according to the adding descriptor of information attribute correspondence in an XML template file that meets generic logic format.In this Play Control file, the broadcast process of each program to be broadcast will be determined according to specific time and position relation.Disk player calls the descriptor of corresponding audio-video document and audio-video document or the like according to the requirement of this file in the specific time.
Through conversion, support the disk player of generic logic format just can play this SVCD CD according to the method for playing generic disc to the information on the SVCD CD.The message file that forms in this process as audio-video document and Play Control file etc., can be stored in the disk player, uses when playing this Zhang Guangpan next time.
According to apparatus and method provided by the invention, a disk player (especially generic logic format playing device) can be play the CD of extended formatting smoothly.
More than though the present invention has been described in conjunction with the embodiments, clearly make according to content described above and multiplely substitute, revise and variation is conspicuous for those skilled in the art, therefore, all so alternative, modifications and variations all should fall among the spirit and scope of claim of the present invention.
Claims (15)
1. one kind makes CD comprise step according to the method for particular optical disk logical format broadcast:
A. obtain the information on the described CD, comprise the descriptor of content to be played;
B. changing the descriptor of being obtained is the descriptor that meets described specific format; With
C. according to the described descriptor that meets specific format, generate the Play Control information that meets described specific format, so that described CD can be play according to described specific format.
2. the method for claim 1, wherein, the information that step a) is obtained also comprises the Play Control information on the described CD, and the Play Control information that meets specific format described in the step c) generates according to the described descriptor that meets specific format and the described Play Control information of obtaining from CD.
3. method as claimed in claim 2, wherein, the Play Control information of storing on the described CD comprises following at least a: catalogue file information, play sequence fileinfo and retrieving files information.
4. method as claimed in claim 1 or 2, wherein, described descriptor comprises following at least a: coded format, reproduction time, bit rate and synchronizing information.
5. method as claimed in claim 1 or 2, wherein, described specific format comprises generic disc.
6. method as claimed in claim 1 or 2, wherein, the described Play Control information that meets specific format of step c) comprises an XML Play Control file.
7. one kind can comprise CD according to the device of particular optical disk logical format broadcast:
A deriving means is used to obtain the information on the described CD, comprises the description breath of content to be played;
A conversion equipment, being used to change the descriptor of being obtained is the descriptor that meets described specific format; With
A generating apparatus is used for the descriptor that meets specific format according to described, generates the Play Control information that meets described specific format, so that described CD can be play according to described specific format.
8. device as claimed in claim 7, wherein, the information that described deriving means obtains also comprises the Play Control information on the described CD, and the described Play Control information that meets specific format generates according to described descriptor and the described Play Control information of obtaining from CD that meets specific format.
9. device as claimed in claim 7, wherein, the described Play Control information that is stored on the CD comprises following at least a: catalogue file information, play sequence fileinfo and retrieving files information.
10. as claim 7 or 8 described devices, wherein, described descriptor comprises following at least a: coded format, reproduction time, bit rate and synchronizing information.
11. as claim 7 or 8 described devices, wherein, described particular optical disk logical format comprises the generic logic optical disc logic format.
12. a disk player comprises:
A disc accessing is used to read the information on the CD; With
One can comprise CD according to the device of certain logic form broadcast,
A deriving means is used for obtaining corresponding information according to the information that described reading device reads from described CD, comprises the descriptor of content to be played,
A conversion equipment, be used to change the descriptor of being obtained and be the descriptor that meets described specific format and
A generating apparatus is used for the descriptor that meets specific format according to described, generates the Play Control information that meets described specific format, so that described CD can be play according to described specific format.
13. device as claimed in claim 12, wherein, the information that described deriving means obtains also comprises the Play Control information on the described CD, and the described Play Control information that meets specific format generates according to described descriptor and the described Play Control information of obtaining from CD that meets specific format.
14. as claim 12 or 13 described devices, wherein, the described Play Control information that meets specific format comprises an XML Play Control file.
15. as claim 12 or 13 described devices, wherein, described specific format comprises generic disc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200580030311 CN101015016A (en) | 2004-09-10 | 2005-08-29 | Method and apparatus for enabling optical disc played in a particular logical format |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410079139 | 2004-09-10 | ||
| CN200410079139.6 | 2004-09-10 | ||
| CN 200580030311 CN101015016A (en) | 2004-09-10 | 2005-08-29 | Method and apparatus for enabling optical disc played in a particular logical format |
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| CN101015016A true CN101015016A (en) | 2007-08-08 |
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| CN 200580030311 Pending CN101015016A (en) | 2004-09-10 | 2005-08-29 | Method and apparatus for enabling optical disc played in a particular logical format |
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Open date: 20070808 |