KR100300993B1 - Storing medium for storing extra information for function of browsable still picture and slide show and writing/reading apparatus and method thereof - Google Patents

Abstract

PURPOSE: A storing medium for storing extra information for the function of a browsable still picture and a slide show and writing/reading apparatus and method thereof are provided to realize the playback of a still picture having time relation with audio data and the playback of a still picture without regard to the time relation with audio data by dividedly storing audio data and video data. CONSTITUTION: In a randomly accessible recording medium, audio data in the continuous playback unit and extra information for still pictures related with the audio data are stored separately. In the audio data, command data as real-time regenerative data are stored after being multiplexed. Audio data and video data about the still pictures are composed in separate files. In the right before an audio data file, a video data file for the still pictures in a specific relation with the audio data is stored. The command data are composed in a pack unit. The command data includes playback time information, the number of a still picture to be regenerated, and playback-related command and data. While audio signals are regenerated, video data in relation with the still picture of the number assigned in the command data are read out from a buffer memory corresponding to the time information in the command data.

Description

Storage medium storing additional information for browsable still and slide show functions, and recording / reproducing apparatus for performing these functions and method thereof

TECHNICAL FIELD The present invention relates to the field of optical recording and reproducing, and more particularly, to a storage medium storing additional information for browsable still and slide show functions, and a recording and reproducing apparatus for performing these functions, and a method thereof.

Currently, when implementing a slide show on a DVD (Digital Versatile Disc) -Video, two streams are recorded in a time data multiplex. One of the two streams is an audio stream and the other is a video stream in which still picture data for the slide show is multiplexed. When the slide show is played using this, the video stream is decoded while the audio stream is played in units of streams, and the slide show is displayed in synchronization with the time information recorded on the streams. Here, the slide show function refers to displaying the still image continuously changing at a predetermined timing while audio data is continuously reproduced.

However, since the still images multiplexed in the audio stream can be seen only when the audio stream is reproduced up to a predetermined portion of the audio stream, only video data of the desired still image can be viewed by the user's selection regardless of the progress of the audio stream. Here, a function of arbitrarily selecting and displaying still images irrespective of the progress of the music is defined as a browseable still image function.

In this slide show and the still picture functions, the still picture can contain not only background information but also subtitle information such as production information on the audio data recorded on the disc, information on the contents, information on the composer, singer and performer. This still image may also be referred to as extra information or catalog information for audio data which is main data recorded on the disc.

On the other hand, the general directory structure for each title of the DVD file system is as shown in FIG. In FIG. 1, the DVD-Video format is taken as an example.

First, there is a root directory, and there is a video title set (Video_TS) directory which is a directory for files in DVD-Video format. Within this video title set (Video_TS) directory, all video title set information (VIDEO_TS.IFO) files for the entire disc, video object (VIDEO_TS.VOB) files for menus on the disc, and backup files (VIDEO_TS.IFO files). BUP) is present. These three files are files related to the entire disk.

Following these three files, there are VTS_01_0.IFO, VTS_01_0.VOB, VTS_01_1.VOB, VTS_01_2.VOB, VTS_01_0.BUP and the like. The meaning of each of these files is that VTS_01_0.IFO is an information file of the corresponding video title set (VTS_01_0.VOB, VTS_01_1.VOB, VTS_01_2.VOB), and VTS_01_0.VOB, VTS_01_1.VOB, and VTS_01_2.VOB are data of each video title set. File. In general, one file constitutes one title. VTS_01_0.BUP is a backup file of VTS_01_0.IFO. The files are contiguous in the same structure for other title sets or titles.

In order to implement a slide show in a disc having such a DVD-Video format, video data and audio data for still images are temporally multiplexed with each other and recorded in one data file (for example, VTS_01_0.VOB).

Meanwhile, a process of reproducing file data having the directory structure shown in FIG. 1 by the DVD-Video player will be described. First, the root directory is searched, and the data in the found root directory is analyzed to find the video title set (VIDEO_TS) directory. Read all video title set information (VIDEO_TS.IFO) inside the video title set (VIDEO_TS) to get the whole disc information. To play each title, information of the title set containing the title (for example, VTS_01_0. After reading the IFO, the data file (for example, VTS_01_0.VOB) for the title is read and played.

In this data file, video and audio data are multiplexed with a temporal association to each other, so that the user's operation that ignores this temporal association can be changed, for example, to change the desired still image independently of audio playback. There was a problem that could not be implemented.

In order to solve the above problems, it is an object of the present invention to provide a storage medium that stores additional information for implementing both browseable still and slide show functions.

Another object of the present invention is to separately configure the audio data and video data files in order to implement both the still image and the slide show functions, the audio data file is a storage medium in which the audio stream and the command stream which is the real-time playback information are multiplexed To provide.

It is still another object of the present invention to separately store audio data of a continuous playback unit and video data for a still image associated with the audio data in one data file so as not to be multiplexed in time, and for real-time playback information in the audio data. It is to provide a storage medium in which the instruction stream is multiplexed.

It is still another object of the present invention to provide an apparatus and method for recording video data files for browsable still pictures and slide shows in a file independent of the audio data files, and multiplexing and recording command data, which is real time playback information, to the audio data. To provide.

It is still another object of the present invention to separately record audio data of a continuous playback unit and video data for still image associated with the audio data separately without temporally multiplexing, and to multiplex and record command data which is real time reproduction information in the audio data. To provide an apparatus and method.

It is still another object of the present invention to enable both playback of still images having a temporal association with audio data (slide show function) and playback of an arbitrarily selected still image (browsable still image function) without considering the temporal association with audio data. To provide an apparatus and method.

In order to achieve the above objects, a storage medium according to the present invention is a storage medium capable of random access, in which audio data of a continuous playback unit and additional information for still images related to the audio data are separately stored. The command data, which is real time reproduction information, is multiplexed and stored therein.

The recording apparatus according to the present invention comprises a first formatter for formatting video data for an input still image into one video data file, multiplexing command data which is real time reproduction information in the input audio data, and formatting the data into one audio data file. A plurality of video data files applied from the first formatter having a predetermined relationship with the audio data are recorded in the order of recording of the second formatter and the audio data file applied from the second formatter. And a recording controller for controlling the video data file and the audio data file to be continuously recorded on a randomly accessible storage medium.

According to another aspect of the present invention, there is provided a recording apparatus comprising: a first coder for encoding video data for still pictures associated with audio data in a continuous playback unit, a second coder for encoding audio data in a continuous playback unit, and audio in a coded continuous playback unit And a formatter for arranging encoded video data in front of the data, multiplexing command data which is real-time reproduction information in the audio data, formatting the data into a single stream, and transmitting the same to a storage medium capable of random access.

A reproduction apparatus according to the present invention first reads out a video data file for still images having a predetermined relationship with a predetermined audio data file from a storage medium, and then reads a predetermined audio data file in which audio data and command data are multiplexed. A controller, a buffer memory for storing the read video data file and the audio data file, and an audio decoder for decoding the audio data to reproduce the audio signal; And a video decoder for decoding the video data having a predetermined relationship with the audio signal during reproduction of the audio signal to reproduce the still image.

Another reproducing apparatus according to the present invention first reads out video data stored in front of audio data of a continuous playback unit from the storage medium, and then demultiplexer for reading audio data in which command data following the video data are multiplexed. A buffer memory for storing video data and audio data, an audio decoder for decoding audio data to reproduce an audio signal, and a video decoder for decoding still data by decoding video data having a predetermined relation to the audio signal during reproduction of the audio signal. It is characterized by including.

The recording method according to the present invention comprises the steps of: formatting video data for an input still image into one video data file, multiplexing the input audio data and command data, which is real time reproduction information, and formatting the same into one audio data file. And a plurality of video data files and audio data files are continuously on a randomly accessible storage medium in the order in which one video data file for still images having a predetermined relationship with the audio data is recorded immediately before any one audio data file. And controlling to be recorded as.

Another recording method according to the present invention comprises the steps of: encoding video data for still pictures associated with audio data of a continuous playback unit, encoding audio data of a continuous playback unit, and encoding before audio data of the encoded continuous playback unit And arranging the video data, multiplexing the command data which is the real-time reproduction information in the audio data, formatting the data into one stream, and transmitting the same to a storage medium capable of random access.

A reproduction method according to the present invention comprises the steps of first reading a video data file for still images having a predetermined relationship with a predetermined audio data file from a storage medium, and then reading a predetermined audio data file having multiplexed audio data and command data. And reproducing the audio signal by decoding the audio data file, and reproducing a still picture having a predetermined relationship with the audio signal.

Another reproduction method according to the present invention comprises the steps of first reading video data stored in front of audio data of a continuous playback unit from a storage medium, and reading audio data in which command data subsequent to the video data are multiplexed, read audio data And decoding the audio signal to reproduce the audio signal, and decoding the video data having a predetermined relationship with the audio signal during reproduction of the audio signal to reproduce the still image.

1 is a view showing the structure of a directory according to a general DVD-Video format.

FIG. 2 is a diagram illustrating a data structure in which audio data and video data are composed of separate files in order to implement a browseable still picture and a slide show proposed in the present invention.

3 is an example of the configuration of a video data file shown in FIG.

FIG. 4 is an embodiment of the video data file shown in FIG. 3.

5 illustrates a pack structure of an instruction stream.

FIG. 6 is a diagram illustrating an example of multiplexing the command stream shown in FIG. 5 onto an audio stream.

FIG. 7 is a diagram illustrating a data structure when audio data and video data are composed of one file in order to implement a browseable still picture and a slide show proposed in the present invention.

8 is a block diagram according to one embodiment of a recorder for performing the functions of the present invention.

9 is a block diagram according to one embodiment of a player for performing the functions of the present invention.

10 is a block diagram according to another embodiment of a recorder for performing the functions of the present invention.

11 is a block diagram according to another embodiment of a player for performing the functions of the present invention.

FIG. 12 is a diagram illustrating a playback example to help understand the operation of the player shown in FIG. 11.

Hereinafter, with reference to the accompanying drawings, a description will be given of a preferred embodiment of a storage medium storing additional information for browsable still and slide show functions and a recording / reproducing apparatus and method for performing these functions according to the present invention. .

As a data structure according to an embodiment for implementing the browseable still and slide show functions proposed by the present invention, as shown in FIG. 2, a file for audio data and a video data file for still images are separately stored. .

That is, according to the data structure shown in Fig. 2, first there is a root directory, and inside the root directory is NEW_TS, which is a directory for files of a new structure. In the embodiment of the present invention, the name of the directory where the audio data file and the video data file for still images are separately named is NEW_TS.

There are NEW_TS.IFO, NEW_TS.VOB, and NEW_TS.BUP in NEW_TS. These three files are related to the entire NEW_TS directory. Following these three files, NEW_01_0.IFO, NEW_01_0.VOBJ, NEW_01_1.AOBJ, NEW_01_1.VOBJ, NEW_01_1.AOBJ, NEW_01_2.VOBJ, NEW_01_2.AOBJ, NEW_01_0.BUP and the like.

Looking at the meaning of each of these files, NEW_01_0.IFO is the information file of the corresponding title set (NEW_01_0.VOBJ, NEW_01_1.AOBJ, NEW_01_1.VOBJ, NEW_01_1.AOBJ, NEW_01_2.VOBJ, NEW_01_2.AOBJ), and NEW_01_0.VOBJ is NEW_01_0 A video data file that contains still picture data related to .AOBJ. NEW_01_0.AOBJ is an audio data file containing audio data. Here, as an example, up to 20 still images may be stored in one video data file.

Similarly, VTS_01_1.VOBJ and VTS_01_2.VOBJ are video data files for still images associated with NEW_01_1.AOBJ and NEW_01_2.AOBJ, respectively. Of course, NEW_01_1.AOBJ and NEW_01_2.AOBJ are audio data files associated with VTS_01_1.VOBJ and VTS_01_2.VOBJ. NEW_01_0.BUP is a backup file of NEW_01_0.IFO. The files are contiguous in the same structure for other title sets or titles.

FIG. 3 is a configuration example of the video data file VOBJ shown in FIG. In Fig. 3, the VOBJ file is composed of data areas of several still pictures and one information area for data of these still pictures.

The still images are recorded in pack form and are aligned in pack units. For example, if the amount of one still picture data is 100 Kbytes and one pack is 2048 bytes, 49 packs (100 Kbytes / 2048 bytes = 48.83) are required. That is, in order to packetize one still picture data in a pack unit, the still picture data is recorded in 48 packs, the remaining still data is recorded first in the 49th pack, and the predetermined pattern data such as arithmetic zero in the remaining part of the pack. It consists of integer packs filled with. Arranging in packs in this way makes it easier to access the data because it can be found in packs.

At the beginning of the VOBJ file, there is an information area for recording information about the file. As the information recorded in this information area, the number of still pictures contained in the corresponding VOBJ file, the coding mode of the still pictures, the positional information of each still picture, the size of the information area, and the like are recorded. The position of the end of the information area is recorded as the size of the information area, and the position of the start and end of each of all still pictures is recorded as the position information of each still picture. Further, instructions and data for any reproduction of the still image (browsable still image function) may or may not be further recorded in this information area. This is because the commands and data for any reproduction of such still images can be recorded in the information file area of the title set.

For example, one VOBJ file contains three MPEG2 coded still images, the first still consists of 49 packs, the second still consists of 51 packs, and the third still consists of 43 packs. In this case, an embodiment of the VOBJ file is illustrated in FIG. 4. In Fig. 4, although the size and location information of the information area are not specified in detail, it is obvious to those skilled in the art that it should be actually described for each file.

Therefore, in the directory structure according to the embodiment proposed by the present invention, a data file for audio and a video data file for still images exist separately, but in front of the audio data file that can be composed of one title (song). Still picture video data files associated with the audio data exist, and in this order a plurality of video data files and a plurality of audio data files are continuously recorded. This arrangement of the video data file in front of the audio data file is for continuous reproduction of the audio data without interruption while the video data is reproduced. Then, real-time reproduction information (referred to as command data in the embodiment of the present invention) for the slide show is recorded by multiplexing the audio data in the audio data file.

On the other hand, the still picture reproduction information, which allows audio data and still picture data to be connected and reproduced, is recorded not only in the information area in the video file shown in FIG. 3 but also in the information file area of the corresponding title set (for example, NEW_01_0.IFO). Can be. The still picture reproduction information table includes an auto play information table for specifying a still picture position to be played at a specific time according to the position information of the video data file, the file separator, and the real time play information obtained when the audio data is reproduced in real time. Information Table). In addition, the information file area of this title set may also record instructions and data relating to any still picture reproduction mentioned above.

This automatic reproduction information table contains information on the reproduction time and the reproduction position of the still image so that the still image can be automatically reproduced appropriately by using real-time reproduction information obtained from the audio data while each title is recorded. When a user gives no command while one title is being played back, it indicates which still picture information among still pictures should be played back.

At this time, when the still images are reproduced in a predetermined order using the automatic reproduction information table, the real time reproduction information multiplexed in the audio stream has index information for accessing the automatic reproduction information table. However, when playing back still pictures in a predetermined order using real time playback information without using an automatic playback information table, the real time playback information includes playback time information for allowing a specific still picture to be played back at a specific time and playback at that time. Number of still images to be reproduced, playback-related commands and data, and the like.

When the audio data file and the video data file for still images as shown in FIG. 3 are separately configured, the video data can be handled irrespective of the progress of the audio data, thereby facilitating the implementation of the browsable still image and slide show functions. do.

In addition, the command data, which is real-time reproduction information for allowing a specific still image to be reproduced to a specific audio portion, may be recorded as additional information on the audio stream, but may be separately made into one stream and multiplexed with the audio stream. have. Let's call it a command stream. In this case, the pack structure of the instruction stream has a form as shown in FIG. The pack of instruction streams takes the same form as the pack of regular MPEGs. There can be one or more packets in one pack. In FIG. 5, the case where one packet exists in one pack is taken as an example.

In Fig. 5, a pack of command streams is first packed with a pack header followed by a packet header followed by command data. In the command data area, the specified time information, the number of still images to be reproduced in accordance with the specified time information, reproduction related commands and data are recorded. As another example, index information for designating an automatic reproduction information table may be recorded in this command data area.

In the example in which a command stream in a pack unit is made and multiplexed with an audio stream, one command pack is multiplexed for each of a plurality of audio packs as shown in FIG. 6. When the command stream is multiplexed on the audio stream as described above, setting the still picture number in the command data to the desired still picture number enables the desired still picture to be displayed at a specific time.

During playback, based on the playback time information in the command data and the still picture number to be played back when the command stream consisting of a pack is read out, when the playback time of the still picture is reached during audio data playback, this audio data is referred to with reference to the playback related commands and data. The still picture associated with the associated information may be reproduced, or the still picture specified in accordance with the reproduction time information previously stored in the automatic reproduction information table may be reproduced by accessing the automatic reproduction information table based on the index information in the command data.

Also, as another embodiment of the present invention, if a video stream and an audio stream for freezing are configured in a single data file without being multiplexed in time, the audio stream is slided if the command stream, which is the above-described real time reproduction information, is multiplexed. If a show can be implemented and information including any still picture reproduction related commands and data is stored in the information file area for the data file, all of the browseable still pictures can be performed in accordance with a user's operation command. In this data structure, the above-mentioned still picture reproduction information for connecting the audio data and the still picture to the information file area is recorded. Further, in this data structure, it is preferable for continuous reproduction that video data for still image related to audio data of one continuous audio reproduction unit (hereinafter referred to as continuous reproduction unit) is placed in front of this audio data. Here, one continuous audio reproduction unit refers to a reproduction unit in which a mute time cannot be specified in the middle of reproduction, and generally means a reproduction unit of a song unit.

That is, as shown in Fig. 7, audio data is recorded in a continuous playback unit, but video data for all still images related to audio data in the continuous playback unit is recorded before audio data in the continuous playback unit.

If 20 pieces of still picture data are required for one song, all 20 pieces of video data are encoded and arranged in pack units. In this case, it is preferable that the information area for still picture as shown in Fig. 3 does not exist immediately before the video data for still picture, but is included in the general information file area for the title (song). This video data is recorded just before the audio data of one song comes out and recorded in a data structure as shown in FIG.

Video data 1 shown in FIG. 7 is a set of still images corresponding to audio data 1 immediately following. In other words, the audio data 1 is one piece of music, and the set of still images required for the reproduction of one piece of music is video data 1. Of course, it does not necessarily have to be one song, and since it means audio data that is played without interruption continuously, the most common unit is a song unit. Similarly, video data 2 is a set of still images displayed while audio data 2 is reproduced, and video data 3 is a set of still images displayed while audio data 3 is reproduced.

8 is a block diagram according to an embodiment of a recorder for performing the functions of the present invention, in order to ignore the temporal relationship, video data and audio data are not multiplexed with each other and are formatted as separate files. When playback with temporal continuity is desired, the command data is multiplexed and recorded on the audio stream in the form of a command stream so as to have a time correlation with the audio data.

That is, the first formatter 110 configures the input still image data in pack units as shown in FIG. 3 to format one video data file. The multiplexer (MUX) 120 multiplexes the audio data input in the form of a stream and the command data input in the form of a stream as shown in FIG. 5 to the second formatter 130 as shown in FIG. . The second formatter 130 formats the command stream output from the multiplexer 120 into an audio data file in which the command stream is multiplexed with the audio stream.

The selector 140 first selects a video data file output from the first formatter 110 and supplies it to the recording controller 150, and outputs one audio output from the second formatter 130 associated with the video data file. The data file is selected and supplied to the recording controller 150. The recording controller 150 controls to record the file selected by the selector 140 to a predetermined position on the disc based on the structure of the directory shown in FIG. 2 under the control of a system controller (not shown) that controls file management. . The selector 140 again selects another formatted video data file applied from the first formatter 110. In this way, the audio data file is recorded immediately before the video data file for still images related to the audio data file.

Also, the recording controller 150 may record the information to be recorded in the information area of the video data file shown in FIG. 3 under the control of the system controller, and connect audio data and still images to each other in the file information area for the data files. It is also possible to control the recording of still picture reproduction information which enables reproduction.

FIG. 9 is a block diagram according to an exemplary embodiment of a player operating in a reverse order to the recorder shown in FIG. 8. First, the playback controller 210 controls an audio data file and a video data file under the control of a system controller managing the file. It accesses the existing location and reads data from disk according to user's operation command. This operation command may be a command according to a play key input or a command according to an arbitrary song selection key input.

The demultiplexer 220 first reads the video data file associated with the selected audio data file according to the operation command through the playback controller 210, so that the read video data file is first buffer 240 through the first decoder 230. )

That is, when a storage medium such as a disc is inserted into the driving device, first, the video data file for the still image stored in the disc is read and stored in the temporary memory, that is, the first buffer 240 for the video data, if necessary. Output is made up of still pictures. In this case, not only the size of the image stored in the first buffer 240 should be limited, but a method that can be used efficiently should be devised. That is, although the first buffer 240 and the second buffer 250 are illustrated as being separately configured in the drawing, two memory regions may be properly allocated using one memory and used efficiently.

The demultiplexer 220 then reads the audio data file following the read video data file and supplies it to the second buffer 250. The second buffer 250 extracts the command data in the command stream multiplexed with the audio data in time, and supplies the extracted command data to the first decoder 230. Here, the demultiplexer 220 and the selector 140 are illustrated as switches for convenience.

The second decoder 260 reproduces the audio by decoding the audio data. That is, during playback of the audio data, the first decoder 230 removes the still image of the number specified in the instruction data in accordance with the operation instruction for selecting an arbitrary still image of the user or the time information contained in the extracted instruction data. It reads out from one buffer 240 and reproduces a predetermined still picture. Whether to follow the user's operation command or the extracted command data first depends on the user's selection. If a command for reproducing a specific still picture for a predetermined time is not input from the user or if the automatic still picture reproducing mode is set, the extracted command data is used or an automatic play information table based on the extracted command data is used. The predetermined still image is read from the first buffer 240 and reproduced through the first decoder 230.

In other words, in response to the user's operation command, the command data is ignored and playback is performed by selectively changing the still image regardless of the audio reproduction timing by the user's operation. That is, a broachable still function is implemented. In the case of command data, audio data is reproduced, and when multiplexed command data is extracted, a still picture preset at a specific time is reproduced according to the extracted command data. In other words, the slide show function is implemented.

FIG. 10 is a block diagram according to another embodiment of a recorder for performing the functions of the present invention, and is configured to support the data structure shown in FIG.

That is, the first coder 310 encodes all the still picture video data accompanying the reproduction of the audio data of the continuous reproduction unit and temporarily stores the video data in the first buffer 320 for the video data. The second coder 330 encodes audio data of a continuous playback unit and temporarily stores the audio data in the second buffer 340 for the audio data. The formatter 350 records the video data stored in the first buffer 320 before the audio data of the continuous playback unit and formats the video data into one stream as shown in FIG. 7. In this case, the command data is multiplexed and recorded at the position of the audio data at the time point at which reproduction of the still picture is required.

11 is a block diagram according to another embodiment of a player which is performed in the reverse operation of the recorder shown in FIG.

First, the location information of each song is found by reading the information file on the disc. The location information of each song means a portion where video data of the song starts to be recorded. When the data of the desired song according to the user's operation command is found based on the position information and the data is read, the data is recorded in the structure as shown in FIG.

That is, the video data read out through the demultiplexer 410 is not immediately reproduced and stored in the first buffer 430 for the video data through the video decoder 420. Continuous playback unit For example, after storage of video data related to one song is finished, as shown in FIG. 7, one piece of audio data is read, and the audio data includes a second buffer 440 for the audio data. Immediately afterwards, audio reproduction is started by the second decoder 450.

When command data is read while reading and playing audio data, the command data is transmitted to the command processor 470 via the third buffer 460 for the command data. The command processor 470 controls the first decoder 420 according to the read command data to supply the video data stored in the first buffer 430 to the video decoder 410 to reproduce the still picture. The command processor 470 may be configured to directly access the first buffer 430 to supply video data to the video decoder 420.

In addition, in FIG. 9, the first decoder 230 is controlled according to a user's selection command or command data, and the video data stored in the first buffer 240 is read and supplied to the video decoder 230 to reproduce still images or directly. The processor may further include a command processor that accesses the first buffer 240 to supply video data to the video decoder 230 to control playback of still images.

Further, in the case where it is desired to select an arbitrary still image according to the user's operation command, the command processor 470 according to the user's operation command based on any still picture reproduction related command and data stored in the information file area for the data file. The first decoder 420 is controlled to reproduce the selected still picture.

On the other hand, in order to help understand the operation of the player shown in FIG. 11, a description will be given in conjunction with the reproduction example as shown in FIG. That is, in Fig. 12, three still pictures are used for audio reproduction of one song which is a continuous playback unit. At the time when these still pictures should be reproduced, the command data is multiplexed and recorded in the audio data. In case of using the MPEG system layer, this command data consists of one pack. When this command data is made into one stream, the pack of command streams can record the number of still images and the reproduction mode to be reproduced at that time.

First, the video data for the three still images P1.P2 and P3 inputted are stored in the first buffer 430 for the video data. When audio data is read and audio playback starts, and command data is read while audio is being played, the still image data of the number specified in the command data is played back in the designated playback mode at the specified time.

In FIG. 12, the first instruction data shows the first stop (P1), the second instruction data shows the second stop (P2), and the third instruction data shows the third stop (P3). Under the control of the read command data, the first buffer 430 for video data is read and transmitted to the first decoder 420 to reproduce the still pictures.

The present invention is applicable to all DVD discs, in particular to DVD-Audio discs, rewritable discs.

As described above, the present invention saves audio data and video data separately without temporally multiplexing, so that playback of still images (slide show function) and temporal association with audio data are not considered. This has the effect of enabling both reproduction of a desired still image (broken still function).

Claims (46)

In a randomly accessible storage medium: And audio data of a continuous playback unit and additional information for still pictures related to the audio data are separately stored, and command data, which is real time playback information, is multiplexed and stored in the audio data. The storage medium of claim 1, wherein the continuous playback unit is any one of a title or a song unit for which a mute time is not specified. The video data file according to claim 1, wherein the audio data and the video data for still pictures are constituted by separate files, and in front of one audio data file, one video data file for still pictures having a predetermined relationship with the audio data. A storage medium, characterized in that a plurality of video data files and a plurality of audio data files are stored consecutively in the order of being stored. 4. The video data file of claim 3, wherein the video data file comprises a data area for a plurality of still pictures and an information area for data of the still pictures, wherein the data area stores video data in a pack unit. And a number, a coding mode of still pictures, position information of each still picture, a size of an information area, instructions and data for arbitrary still picture reproduction, and the like. 4. The audio data file of claim 3, wherein the command stream, which is real time playback information, is configured in pack units, and the command stream, which is real time playback information, is multiplexed and stored at the position of the audio stream at the point of time when the still picture needs to be reproduced. Storage media. 6. The storage medium according to claim 5, wherein the real-time reproduction information includes reproduction time information, a number of still images to be reproduced, instructions related to reproduction, and data so that a specific still image can be reproduced at a specific time. 6. The storage medium of claim 5, wherein the real-time reproduction information is index information for accessing an automatic reproduction information table. 8. The storage medium of claim 7, wherein still picture reproduction information for allowing the audio data and the still picture to be connected to each other to be reproduced is stored in an information file area for audio and video data files. 9. The still picture reproduction information according to claim 8, wherein the still picture reproduction information includes an automatic reproduction information table for specifying a position of a video data file on which a still picture is recorded, a file separator, and a still picture position to be reproduced corresponding to a specific time according to the real time reproduction information. A storage medium comprising instructions and data for still picture reproduction. The audio data and video data of claim 1, wherein the audio data and the video data are not multiplexed in one data file, but are configured separately, and the video data for the still image related to the audio data is stored before the audio data of one continuous playback unit. Raw video data and audio data are continuously stored, and the command data, which is real time reproduction information, is multiplexed in the audio data. 12. The apparatus of claim 10, wherein the command data is configured in pack units, and the command data includes reproduction time information, number of still images to be reproduced, reproduction-related commands and data, and the like so that a specific still image can be reproduced at a specific time. Characterized in that the storage medium. 12. The storage medium of claim 10, wherein still image reproduction information for allowing the audio data and the still image to be connected to each other to be reproduced is further stored in an information file area for the data file. The storage medium of claim 12, wherein the still picture reproduction information includes a number of still pictures, a coding mode of still pictures, position information of each still picture, an information area size, instructions and data for arbitrary still picture reproduction, and the like. . 13. The still picture reproduction information according to claim 12, wherein the still picture reproduction information includes an automatic reproduction information table for specifying a position of a video data file on which a still picture is recorded, a file separator, and a still picture position to be reproduced corresponding to a specific time according to the real time reproduction information. A storage medium comprising instructions and data for still picture reproduction. 15. The storage medium of claim 14, wherein the command data is index information for accessing an automatic reproduction information table. A first formatter for formatting the video data for the input still image into one video data file; A second formatter for multiplexing input audio data and command data which is real-time reproduction information and formatting them into one audio data file; And In front of any one audio data file applied from the second formatter, a plurality of video data files and a plurality of video data files applied from the first formatter having a predetermined relationship with the audio data are recorded. And a recording controller for controlling the audio data file to be continuously recorded in a storage medium capable of random access. 17. The recording and reproducing apparatus according to claim 16, wherein the audio data and the command data are each composed of an audio stream and a command stream in units of packs, and the command stream is multiplexed at an audio stream position when a still picture needs to be reproduced. . The video data file of claim 16, wherein the video data file comprises a data area of a plurality of still pictures and an information area for data of the still pictures, wherein the video area stores video data in a pack unit for still pictures. And a number of still pictures, a coding mode of still pictures, position information of each still picture and the size of an information area, instructions and data for arbitrary still picture reproduction, and the like. 17. The apparatus according to claim 16, wherein the recording controller further records still picture reproduction information in the information file area for the audio and video data files, which allows the audio data and the still picture to be connected to each other and reproduced. Includes an automatic play information table for designating a position of a recorded video data file, a file separator, and a still picture position to be played corresponding to a specific time according to the command data, and an instruction and data for any still picture playback. A recording and reproducing apparatus. 20. The recording and reproducing apparatus according to claim 19, wherein the command data is index information for accessing an automatic reproducing information table. 17. The recording and reproducing apparatus according to claim 16, wherein the command data includes reproduction time information, a number of the still image to be reproduced, reproduction related commands and data, and the like so that a specific still image can be reproduced at a specific time. The method of claim 16, A reproduction controller for first reading a video data file for still images having a predetermined relationship with a desired audio data file from a storage medium, and then reading the desired audio data file in which audio data and command data are multiplexed; A buffer memory for storing the read video data and audio data; An audio decoder which reproduces an audio signal by decoding the audio data; And And a video decoder which decodes video data having a predetermined relation with the audio signal during reproduction of the audio signal to reproduce still images. 23. The recording and reproducing apparatus according to claim 22, wherein the buffer memory comprises buffers for storing the video data and the audio data, respectively. 23. The recording and reproducing apparatus according to claim 22, wherein video data for freezing corresponding thereto is read out from the buffer memory according to a user's selection command and reproduced independently of the audio reproduction timing. 23. The video data according to claim 22, wherein, during the reproduction of the audio signal, video data for freezing of a number designated in the command data is read out from the buffer memory in accordance with time information contained in the command data based on the command data. And a recording and reproducing apparatus. 23. The apparatus according to claim 22, wherein while reproducing the audio data, information of an automatic reproduction information table recorded in a predetermined information file area is accessed based on the command data to read out a still image designated at a predetermined time from the buffer memory. Recording and reproducing. A first coder for encoding video data for still pictures associated with audio data in a continuous playback unit; A second coder for encoding the audio data of the continuous playback unit; A format for arranging the encoded video data in front of the encoded audio data of the continuous playback unit, multiplexing command data which is real-time playback information in the audio data, formatting the same into one stream, and transmitting the same to a randomly accessible storage medium. Recording and playback apparatus comprising a firearm. 28. The apparatus of claim 27, wherein the audio data and the video data are not only composed of packs but also the instruction data of packs of command streams so that the command stream is multiplexed at the position of the audio stream at the point of time when the still picture needs to be reproduced. And a recording and reproducing apparatus, characterized in that. The apparatus of claim 27, wherein the device is A demultiplexer for first reading video data stored before audio data of a continuous playback unit from the storage medium, and reading audio data in which command data following the video data are multiplexed; A buffer memory for storing the read video data and audio data; An audio decoder which reproduces an audio signal by decoding the audio data; And And a video decoder which decodes video data having a predetermined relation with the audio signal during reproduction of the audio signal to reproduce still images. 30. The recording and reproducing apparatus according to claim 29, wherein the buffer memory comprises buffers for storing the video data, the audio data, and the command data, respectively. 30. The apparatus of claim 29, further comprising: a command processor that controls the video decoder according to either the command data or the user's operation command to read video data stored in the buffer memory in the video decoder to reproduce still images. Record and playback device. 30. The recording and reproducing apparatus according to claim 29, further comprising: a command processor for directly reproducing the still image by supplying the read video data to the video decoder by directly accessing the buffer memory according to either the command data or the user's operation command. Device. (a) formatting the video data for the input still image into one video data file; (b) multiplexing the input audio data and command data which is real-time reproduction information of the audio and formatting the same into one audio data file; And (c) a storage in which a plurality of video data files and audio data files are randomly accessible in the order in which one video data file for still images having a predetermined relation with the audio data is recorded immediately before any one of the audio data files. And controlling to record continuously on the medium. 34. The audio stream as claimed in claim 33, wherein the audio data and the video data are not only composed of a pack unit audio stream and a video stream, but also the command data is also composed of a pack unit command stream. And the command stream is multiplexed at the position of. The method of claim 33, wherein (d) first reading a video data file for still images having a predetermined relation with a predetermined audio data file from the storage medium, and then reading the predetermined audio data file in which audio data and command data are multiplexed; (e) decoding the audio data file to play an audio signal; And and (f) reproducing a still picture having a predetermined relationship with said audio signal. 36. The recording and reproducing method according to claim 35, wherein in the step (f), a still image selected according to a user's selection is reproduced. 36. The recording and reproducing method according to claim 35, wherein in the step (f), the still images are reproduced in a predetermined order based on the command data. 36. The recording and reproducing according to claim 35, wherein in the step (f), reproduction of a still image selected according to a user's selection is prioritized, and predetermined conditions must be satisfied in order to reproduce the still image in a predetermined order. Way. 39. The recording and reproducing method according to claim 38, wherein the predetermined condition satisfies one of no selection is made for selecting a predetermined still picture from a user for a predetermined time or an automatic still picture reproducing mode is set. . (a) encoding video data for still pictures associated with audio data in a continuous playback unit; (b) encoding audio data of the continuous playback unit; And (c) Arranging the encoded video data in front of the encoded audio data of the continuous playback unit, multiplexing command data which is real-time reproduction information in the audio data, formatting the same into a single stream, and storing the random data into a randomly accessible storage medium. Recording and reproducing method comprising the step of transmitting. 41. The apparatus of claim 40, wherein the audio data and the video data are not only packed in packs, but also the command data are packed in packs of command streams. A recording and reproducing method, characterized in that it is multiplexed. The method of claim 40, wherein the method is (d) first reading video data stored before audio data of a continuous playback unit from the storage medium, and reading audio data in which command data following the video data are multiplexed; (e) decoding the read audio data to reproduce an audio signal; And and (f) decoding the video data having a predetermined relationship with the audio signal while reproducing the audio signal to reproduce the still picture. 43. The recording and reproducing method according to claim 42, wherein in the step (f), the still image selected according to the user's selection is reproduced. 43. The recording and reproducing method according to claim 42, wherein in the step (f), the still images are reproduced in a predetermined order based on the command data. 45. The recording and reproducing according to claim 44, wherein in the step (f), reproduction of the still image selected according to a user's selection is prioritized, and predetermined conditions must be satisfied in order to reproduce the still image in a predetermined order. Way. 46. The recording and reproducing method according to claim 45, wherein the predetermined condition satisfies one of no selection is made for selecting a predetermined still picture from a user for a predetermined time or the automatic still picture reproducing mode is set. .