(5) embodiment
In order to understand the present invention fully, describe its example embodiment below with reference to accompanying drawings in detail.
High-density recording medium such as high density compact disc (for example: blue light ROM (BD-ROM), BD-RE) according to the present invention can comprise the file or the data structure of the reproduction that is used for video shown in the control chart 1 and voice data.Some aspects according to data structure of the present invention shown in Fig. 1 are identical with the BD-RE standard of knowing, and for this these aspects looked back no longer and described in detail.
As shown in fig. 1, root directory comprises at least one BD catalogue.The BD catalogue comprises: the general file (not shown), wherein (for example: PLAYLIST catalogue * .mpls), wherein stored the CLPINF catalogue of clip information file (* .clpi) and wherein stored STREAM catalogue with the A/V streaming clip (* .m2ts) of clip information file corresponding M PEG2 form stored play list file.
The STREAM catalogue comprises the A/V stream-oriented file of the MPEG2 form that is called the segment stream-oriented file or has only clip.The A/V stream-oriented file comprises the source bag of video and voice data.For example, the source of video data comprises title and transmission package.The source comprises the source Bale No. of the number that is generally the address of distributing successively that is used as the access originator bag.Transmission package comprises Packet Identifier (PID).The sequence of the transmission package under the PID sign transmission package.Each transmission package in the sequence will have identical PID.
The CLIPINF catalogue comprises a clip information file that is associated with each A/V stream-oriented file.Type, sequence information, program information and the timing information of the A/V stream that this clip information file is represented especially to be associated with it.This sequence information is described based on time of arrival (ATC) with based on the sequence of system time (STC).For example, sequence information is especially represented the PID of transmission package in the address of first source bag in the start and end time information, each sequence of sequence number, each sequence and each sequence.Wherein the content of program is that the sequence that wrap in constant source is called agenda.Program information is the PID of transport stream in the start address of representation program sequence number, each agenda and the agenda especially.
Timing information is called characteristic point information (CPI).A kind of form of CPI is entrance (EP) mapping.This EP mapping maps to source packet address (that is source Bale No.) with show time scale (for example: by time of arrival (ATC) and/or system time (STC)).Show time scale (PTS) and source Bale No. (SPN) are relevant with entrance in the AV stream; That is, PTS and relative SPN point are relevant with entrance on the AV stream.The bag that points to often is known as the entrance bag.
The PLAYLIST catalogue comprises one or more play list file.The notion of introducing playlist is the segment that is used to reset for the ease of editor/compilation.Play list file is to play combination at interval in the segment.Each is play to be called at interval and plays item.Played file especially identifies each that form playlist and plays, and each is play item and (for example: the markers of pressing ATC or STC) refers in particular to a pair of IN point of the position on the time shaft of clip and OUT point.Play list file also can comprise the IN point of the position on the time shaft that a pair of sensing clip also is provided and the son broadcast item that OUT is ordered.That is to say that play list file identifies broadcast item and sub-broadcast item, respectively play item or sub-broadcast item and specify clip or wherein a part of clip information file that is associated with this clip that also identifies.Especially use this clip information will play the clip that item maps to the source bag.Playlist can comprise that also ad-hoc location (for example: playlist mark particular address) in the sensing clip.
The general information file (not shown) is provided for the general information of the reproduction of the A/V stream of management accounts on CD.
Except the data structure that recording medium according to an embodiment of the invention is shown, Fig. 1 also represents the zone of recording medium.For example, general information file is recorded in one or more general information area, playlist directory is recorded in one or more playlist directory areas, and each playlist in the playlist directory is recorded in one or more playlist area of recording medium.Fig. 2 illustrates an example of the recording medium of the data structure that stores Fig. 1 on it.As shown in the figure, this recording medium comprises: file system information area, database area and A/V stream district.Database community comprises general information file and playlist information area and clip information district.General information file and playlist information area have the general information file that is recorded in its general information file district and are recorded in its playlist information area interior PLAYLIST catalogue and play list file.The clip information district has CLIPINFO catalogue that is recorded in wherein and the clip information file that is associated.A/V stream district has the A/V stream that is used to be recorded in wherein each kind of captions.
Video and voice data are organized into some single captions usually; For example, the some different films of being represented by video and voice data are organized into several different captions.In addition, can with captions with a book be organized into the closely similar mode of some chapters and sections be organized into each chapters and sections.
Because the large storage capacity of the new high-density recording medium such as BD-ROM and BD-RD CD can write down the various version of different captions, captions or the several portions of captions, thereby reproduce from recording medium.For example, can will represent that the video data recording of camera angle no longer is on recording medium.As another example, can be on recording medium with the captions version that is associated with different language or its partial record.As another example, can be on recording medium with the colophon of a certain director's of a certain directory version and a certain theater.Or, can with a certain captions or and adult's version, young people's version and children's version (that is, different father and mother control version) of part be recorded on the recording medium.A kind of different reproduction paths of representative such as each version, camera angle, and the video data in these examples is called many reproduction path video data.
Because the large storage capacity of the new high-density recording medium such as BD-ROM can and reproduce still image or photo with organized and/or user interaction mode (for example: as the lantern slide of projection) record.The data structure of reproduction that is used to manage the still image of high-density recording medium according to an embodiment of the invention will illustrate together with being used for record according to an embodiment of the invention and reproducing the still image method and apparatus.
The method that Fig. 3 illustrates the embodiment of a data structure and management is used for the still image of high-density recording medium according to the present invention.In a plurality of still images or photo storage each still image file on the high-density recording medium such as BD-ROM, and playlist comprises the navigation information of the playback control that is used for still image.
The navigation information of playlist also is associated with the film video or the voice data of the specific region that is recorded in segment A/V stream.Which point that this playlist is illustrated in film video or the voice data reproduces still image.That is, this playlist is with segment A/V stream and still image file chaining.Playlist also can provide a duration that is used to show each still image, or this information can be provided by clip information file.This duration can be limited or unlimited.
When the reproduction according to playlist, transcriber is found to be associated with film video or voice data at reproduction period one still image of film video or voice data, and transcriber obtains this still image from this still image file.Then, transcriber shows the limited or unlimited duration according to the static operation of demonstration duration information and executing that is used for still image with this still image.When indication during unlimited duration, show that then this still image is till receiving user's input.
As can still image maybe can being browsed slide show as order slide show, random/shuffle slide show and show to understand above-mentioned and following the disclosing.The order slide show relates to each still image that has finite duration by the order reproduction by the playlist setting.This of still image reproduce also can appear at the synchronous reproduction of voice data in.Can browse the slide show demonstration and comprise the still image that has finite duration with the listed order reproduction of playlist.The still image that enters front or back is reproduced in input according to the user.The random/shuffle slide show is a kind of form that the randomized order of order of reproducing still image maybe can be browsed slide show.
Fig. 4 illustrates an example of still image file.In this example, still image or one group of still image form a display unit.Display unit for example can be formed by the still image with public display properties.For example in Fig. 4, the still image #1-#k with identical demonstration duration (duration #1) forms display unit #1 and has the identical still image #k+1-#n composition display unit #2 that shows the duration (duration #2).Though the example of duration as image attributes provides, should understand and the invention is not restricted to this example.
Fig. 5 illustrates an example of the relation between playlist according to an embodiment of the invention and at least one clip.As shown in Figure 5, playlist comprises and (for example: the navigation information of first and second display units shown in Fig. 4) playback control is used for first and second display units.Included broadcast item is used for the playback control of still image stream and the related data such as figure and caption stream in the playlist.Included son broadcast item is used for controlling with the playback of still image associated audio data in the playlist.As shown in the figure, therefore audio data recording is not included in the related data in the file that separates with still image and related data.Can with the synchronous or asynchronous mode reproducing audio data of the still image that is associated.
Playlist also comprises a playlist mark (still image group echo (SPG_mark) hereinafter referred to as) that is used for each display unit.Still image group echo SPG_mark points to the beginning of the display unit that comprises one or more still images.
Still image stream and related data flow (for example: figure or caption stream) are packetized into subpackage elementary stream (PES) bag by still image.That is, each PES of still image stream comprises single still image.The PES packet encoder becomes the MPEG2 transmission package, is multiplexed in the transport stream then.Embodiment with reference to Fig. 6 and 7 illustrates in greater detail below.
The information that is used for the reproduction that links of the still image that is associated with still image and figure and caption data is recorded in the PES bag of still image and figure that is associated and caption data.As shown in Figure 5, can be included in the PES bag of the PES bag of this still image and figure that is associated and caption data with the corresponding unique visual ID of the number of images of still image.
Transcriber can be carried out the playback control with the still image of the display unit of still image group echo (SPG_marks) grouping that comprises in the playlist effectively.Again, transcriber is carried out still image and the figure that is associated with this still image and the playback that links of caption data by the unique visual ID that detects this still image.At the reproduction period of still image and related data, this transcriber also reproduces an audio stream of being play the item expression by son.
Fig. 6 and 7 specific embodiment of a data structure is shown and be used to manage with above relative Fig. 5 describe similar such as BD-ROM the method for the still image of high-density recording medium.The most noticeable difference is that the embodiment of Fig. 6 and Fig. 7 does not comprise display unit.
As shown in Figure 6, by still image still image stream and relevant data stream (figure and caption data) are packetized into the PES bag.That is, the PES of this still image stream comprises single still image, and the PES that is associated of this related data comprises the data (for example, being used for reproducing with the still image synchronised ground that is associated) that are associated with this still image.With still image with will form the still image unit with the related data of its reproduced in synchronization.Press the still image unit, still image stream and related data flow are multiplexed in the still image file of MPEG2 transport stream.
Fig. 6 also illustrates and the corresponding clip information file of still image file.This clip information file comprises an entrance mapping (EP_map).(EP#1~#k) comprises each navigation information of the header record position that is used for access respective stationary image cell in each entrance in this EP mapping.Navigation information for example comprises Bale No. entrance, source initial (SPN_EP_Start) information of the home record position of expression respective stationary image cell.
Fig. 7 illustrates the playlist of the Play Control of the still image file that is used for above relative Fig. 6 discussion.As shown in the figure, the broadcast item (PlayItem) in playlist comprise in the image of the reference position that corresponds respectively to the still image in the still image file that will reproduce and end position (IN_picture) information and visual outside (OUT_picture) information.Son in the playlist is play (SubPlayItem) and is comprised that son is play (SubPlayItem_IN_time) information in the time and the son of the audio file that separates that is used for reproducing explicitly with the still image file is play outer (SubPlayItem_OUT_time) information of a time.Can with the synchronous or asynchronous mode reproducing audio data of the still image that is associated.
Playlist also comprises a playlist mark (still flag hereinafter referred to as) of pointing to each still image.The included related data of demonstration duration information and still image unit that is used for still image can be recorded in this corresponding still flag in still image unit in.In addition, this demonstration duration information can also be included in and play in the item.
This still flag is particularly useful when jumping between image during can browsing slide show.Preferably can synchronously this still image file or its part be associated with a plurality of playlists with different mutually demonstration duration.
Fig. 8 illustrates and comprises the physical allocation of MPEG2 transport stream on the high density compact disc recording medium of for example CD.As shown in the figure, record aligns with the physical record unit of CD (such as error correction code block (ECC piece) unit or sector location) with the each several part of the corresponding MPEG2 transport stream in still image unit.For example, if do not fill the physical record unit, then fill or fill up the zone that this is not filled with empty data with the record size of the corresponding transport stream in the second still image unit.
Fig. 9 illustrates the synoptic diagram of the part-structure of having used optical disc apparatus of the present invention.As shown in the figure, optical disc apparatus comprises the data that reproduction is operated and demodulation is reproduced by disc read head 111 that are used for from disc read head 111.VDP (video disc play) system 112 these disc read heads 111 of control of optical disc replay data.VDP112 produces an AV stream, this AV stream can also be fed to D/A converter 13 to produce the AV stream of an analog version.
According to the present invention, VDP system 112 control disc read heads 111 and according to receiving user's input from user interface and being recorded in navigation on the CD and data that the management information demodulation is reproduced.For example, VDP system 112 quotes entrance mapping included in still flag included in the above-mentioned playlist and the clip information file.That is, the VDP system according to the entrance of being write down in the entrance mapping (EP#1, #2 ...) and order read the caption data of still image, graph data and each still image unit.Then, VDP system 112 carries out a series of operations that are used to reproduce slide show, this slide show can according to demonstration duration information regeneration included in the still flag fixedly the duration or according to user's key entry with the unit of the corresponding still image of each still flag unit in the form of reproducing of jumping reproduce.
As shown in figure 10, VDP system 112 can comprise: switch 120, track buffering device 121, TS DEMUX122, video buffer 123, graphics buffer 124, captions impact damper 125, audio buffer 126, Video Decoder 127, graphic decoder 128, subtitle decoder 129, audio decoder 130, PCR counter 131 and microcomputer 132.
Microcomputer 132 is according to user's the key entry or the operation of figure duration information Control switch 120, thereby optionally still image (V), graph data (G) and caption data (ST) is fed in the track buffering device 121.TS DEMUX 122 quotes the bag ID (PID) of the data stream that temporarily is stored in the track buffering device and respectively static video data, graph data and caption data is assigned in video buffer 123, graphics buffer 124, the captions impact damper 125.
The static video data of Video Decoder 127 decoding, graphic decoder 128 decoding graph datas and subtitle decoder 129 decoding caption datas.As a result, single still image and relevant figure and caption data have been reproduced.
Equally, the operation of microcomputer 132 gauge tap 120 also optionally will be fed to the track buffering device 121 from the voice data (A) that CD is read.TS DEMUX 122 quotes the bag ID (PID) of the audio data stream of interim storage in the track buffering device, thereby this voice data is assigned in the audio buffer 126.
Audio decoder 130 decodings and output are through the voice data of decoding.In this stage, show time scale (PTS) feed information that will be separated by TS DEMUX 121 is to audio decoder 130.Again, 131 pairs in PCR counter is from TS DEMUX 121 isolated program clock benchmark (PCR) message counts and this PCR count value is fed to the audio decoder 130.Because use PTS and PCR to know in the prior art, no longer describe the content that comprises them in the data that are recorded on the CD in detail.
When the PCR count value is consistent with pts value, audio decoder 130 reproducing audio datas.Only PCR count value and pts value are fed to the time of reproducing with control audio in the audio decoder 130.
Therefore, optical disc apparatus can normally reproduce the still image file and separately be recorded in the slide show operation of the audio file on the read-only Blu-ray disc that is mutually related by common switch 120, track buffering device 121 and TS DEMUX122.
Figure 11 illustrates another specific embodiment of VDP system 112.This embodiment except also comprise a PTS totalizer 133 with its be associated be connected embodiment with Figure 10 identical.As mentioned above, microcomputer 132 is quoted user's key input or is shown duration information, thus the operation of control track buffering device 121 and switch 120.Same information also is used for the control of PTS totalizer 133.
PTS totalizer 133 is quoted the PTS that temporarily is stored in the voice data in the track buffering device, thereby pseudo-PTS that extraly will be identical with audio frequency PTS records in the PES bag of static video data, graph data and caption data.
To route to audio decoder 130 from the audio frequency PTS that TS DEMUX 121 separates, and with 131 pairs of program clock benchmark (PCR) message counts from described TS DEMUX separation of described PCR counter.This PCR count value is fed in the audio decoder 130, and when the PCR count value is consistent with PTS, these audio decoder 130 these voice datas of decoding.
Also will distribute to Video Decoder 127, graphic decoder 128 and subtitle decoder 129 by pseudo-PTS and PCR count value that TS DEMUX121 separates.When the PCR count value is consistent with pseudo-PTS, reproduce static video data, graph data and caption data respectively.
Therefore, optical disc apparatus can normally reproduce the still image file and separately be recorded in the slide show operation of the audio file on the read-only Blu-ray disc that is mutually related by common switch 120, track buffering device 121 and TS DEMUX 122.
Figure 12 illustrates the synoptic diagram according to an embodiment of video disc recording of the present invention and transcriber.As shown in the figure, AV demoder 9 receives and decoded data (for example: static video data, voice data etc.).AV demoder 9 is exported data and coded message and the stream attribute information of decoding together.Multiplexer 8 is according to the coded message that will set up and the multiplexed data through decoding of stream attribute information (for example mpeg 2 transport stream).Source packetizer 7 will be packetized into the source bag from the transmission package of multiplexer 8 according to the audio/video format of CD.As shown in Figure 8, the operation of AV demoder 9, multiplexer 8 and source packetizer 7 is by controller 10 controls.Controller 10 is connected to the pass and receives user's input of recording operation and control information is offered AV demoder 9, multiplexer 8 and source packetizer 7.For example, the type of coding that controller 10 will be carried out to AV scrambler 9 indication, the transport stream that will set up to multiplexer 8 indications and to source packetizer 7 indication source packet formats.This controller 10 also comprise one will be from the driver 3 of packetizer 7 output records in source on CD.
Controller 10 is also created and is used to manage navigation and the management information that reproduction is recorded in the data on the CD.For example, according to the information that receives by user interface (for example: be stored on the dish, by computer system in Intranet or the command group that provides on the Internet) controller 10 Control Driver 3 write down the data structure of one or more Fig. 1-8 on CD.
At reproduction period, controller 10 Control Driver 3 are reproduced this data structure.According to the information that wherein comprises and the user's input that receives on the user interface (for example: control knob on record and transcriber or the telepilot that is associated with this device), controller 10 Control Driver 3 are reproduced from optical disc data.For example, discuss, can reproduce the one or more still image explicitly according to navigation information and voice data as above relative embodiments of the invention.In addition, a width of cloth or set of diagrams can be resembled as the part of slide show or slide show and reproduce.And for example the above, slide show can be synchronous, browsable etc.
The source bag that reproduces (for example: MPEG-2 transmission package stream) receives and converts to data stream by source bale breaker 4.Demultiplexer 5 is separated into coded data with this data stream multichannel.AV demoder 6 is fed to the encoded signals decoding raw data of AV scrambler 9 with generation.At reproduction period, the operation of controller 10 Controlling Source bale breakers 4, demultiplexer 5 and AV demoder 6.Controller 10 receives about user's input of reproducing operation and with control information and offers AV demoder 6, demultiplexer 5 and source bale breaker 4.For example, the decoding type that controller 10 will be carried out to 9 indications of AV demoder is indicated the transport stream of wanting multichannel to separate to demultiplexer 5, and to source bale breaker 4 indication source packet formats.
Though Figure 12 is described as record and transcriber, those parts that record or representational role are provided that should understand with Figure 12 can only provide record or transcriber.
(for example: the high density compact disc such as BD-ROM) the invention provides a kind of recording medium with the data structure that is used for the still image of management accounts on high-density recording medium from above being appreciated that open.For example, data structure allows to show in every way still image or may be voice data.
The method that management according to the present invention is used for the still image of high-density recording medium provides various static control operations and allows still image and effective link of the caption data that is associated or graphic image is reproduced.
Obviously find out from the above description, the invention provides the method and apparatus that is used for the data structure of the still image of management accounts on this recording medium at record on the high-density recording medium.
More than explanation being used on the high-density recording medium that also be recorded in of also being provided for reproducing according to data structure the still image be recorded on the high-density recording medium managed the method and apparatus of the reproduction of still image.
Though relatively limited embodiment discloses the present invention, those skilled in the art can draw many modifications and the modification that generates from wherein by the disclosure.For example, blue light ROM CD is described relatively in several examples, the invention is not restricted to the CD of this standard or is not limited to CD.Be intended to make all such modifications and modification all to fall in the spirit and scope of the present invention.