JPH05346850A - Data processor - Google Patents

Abstract

PURPOSE:To easily develop an application software for which real time is required like a CD-I application software. CONSTITUTION:This device is provided with a material data memory 11 to store the plural kinds of material data, editing means 16 to hourly edit material information stored in the material data memory 11, format transforming means 15 to transform the format of the edited material information to the recording format of an optical disk, and encode means 22 to encode format transformed data corresponding to the format of the optical disk. Thus, the state of the application program of the CD-I disk can be simulated even without actually preparing the CD-I disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device suitable for use in developing a CD-I application program.

[0002]

2. Description of the Related Art A CD-I system has been developed in which audio data, video data, text data and program data can be recorded on an optical disk similar to a CD (compact disk) for music and interactively operated. .. In the CD-I application program, audio data, video data, text data and program data are intricately intertwined. Therefore, the CD-I application programs tend to be huge and complicated, and development is not easy. Furthermore, since CD-I requires real-time processing such as audio data and video data, finally, the developed application program can be realized in the state of a disc, and the operating state can be changed in the state of the disc. It is necessary to confirm.

That is, even if the CD-I program is developed on a computer for application development, and the operating state is confirmed by running the application program on the computer for developing, the operating state is the final disc. It may be different from the operating state of. For example,
Access speeds of music data and video data on a disk have not been conventionally considered on a development computer. The data recorded on the disc is subjected to interleave processing and error correction processing, and the access speed varies depending on the position on the disc. Therefore, the playback state of music or video when the application program is run on the development computer is different from the playback state of the music or image of the CD-I application realized on the actual disc. Can be.

[0004]

As described above, conventionally, when a CD-I application program is developed, the application program is run on a computer for development and its operating state is confirmed. The application program is implemented on the disk and the final operating status is confirmed. On the development computer, since the data access speed and the like are not considered, it is rare that the application program actually realized on the disk runs as expected. Therefore, conventionally, it is necessary to realize the application program on an actual disk and check the operating state many times.

Therefore, the object of the present invention is to provide a CD-I.
An object of the present invention is to provide a disc reproducing apparatus that can easily develop an application that requires real-time processing, such as a disc application.

[0006]

According to the present invention, in a data processing device for editing a plurality of types of material information and recording the information on an optical disc, a material information storage means for storing a plurality of types of material information and a material information storage means are provided. Editing means for temporally editing the stored material information, format conversion means for converting the format of the edited material information into the recording format of the optical disc, and the format-converted data according to the format of the optical disc. A data processing device including an encoding means for encoding and enabling simulation of the state of an optical disc.

[0007]

When the CD-I application program is developed, the actual operation on the disk can be simulated on the memory, so that the real-time operation can be confirmed and the development efficiency of the application system is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a CD to which the present invention is applied.
1 shows an example of an I application development system. In FIG. 1, reference numeral 1 is an application development machine. The application development machine 1 is a computer for developing a CD-I application.

Reference numeral 2 is a virtual disk creating unit. The virtual disk creation unit 2 is hardware for giving the same condition as the disk to the application data on the memory. The virtual disk creation unit 2 is configured on a single board, and is detachably attached to, for example, the slot of the application development machine 1.

Reference numeral 3 is a disk production apparatus, 4 is a disk reproduction apparatus, and 5 is a CD-I reproduction apparatus.

A display 12 and a keyboard 13 are connected to the application development machine 1. Also,
This application development machine 1 has an input terminal 14
Supplies material data such as image data and audio data. These material data are image scanner,
It can be obtained from a VTR, an audio tape recorder, a CD player or the like.

The application development machine 1 has a material data memory 11, a format conversion section 15, a controller 16, a working memory 17, and a disk image memory 18. Material data from the input terminal 14 is
It is stored in the material data memory 11. The application developer collects material data, decides which material is used at what timing, and develops the application program. The data format at this time is C
It is independent of the DI format.

The format conversion section 15 converts the application program into a CD-I recording format. The working memory 17 is used for temporarily storing material data when performing format conversion. The format conversion unit 15 converts the application program into disk image data. The disk image data is data in sector units.

The virtual disk creating section 2 has an additional information generating circuit 21 and a CD-ROM encoder 22. The additional information generation unit 21 generates additional information such as subcode and TOC. The CD-ROM encoder 22 is C
Processing such as framing and error correction coding is performed in the D-ROM recording format.

The application data created by the application development machine 1 is stored in the disk image memory 18. Then, before creating an actual disk, it is first sent to the virtual disk creating unit 2. CD-
The ROM encoder 22 encodes the application data based on the recording format of the CD-ROM. The data from the CD-ROM encoder 22 is supplied to the terminal 71A of the switch circuit 71. Further, the control data from the CD-ROM 22 is supplied to the terminal 72A of the switch circuit 72.

Further, when an actual disc is produced, the data in the disc image memory 18 is sent to the disc production device 3. The disc production device 3 is a CD-R
A disk recording device for recording data on an optical disk based on the OM format.

When simulating the operating state of the application program, the switch circuit 71 uses the terminal 7
The switch circuit 72 is set to the terminal 72A side. When confirming the actual operation of the disk, the switch circuit 71 is set to the terminal 71B side and the switch circuit 72 is set to the terminal 72B side. The output of the switch circuit 71 is supplied to the CD-ROM reproduction circuit 51. The output of the switch circuit 72 is the system controller 5
2 is supplied.

The disc reproducing device 4 is a reproducing device for reproducing a normal CD. The rotation of the disc 41 (CD-I disc) is controlled by the spindle motor 42.
The recording signal of the disc 41 is reproduced by the pickup 43. The overall operation of the disc reproducing device 41 is managed by the controller 44. The output of the pickup 43 is supplied to the CD decoder 46 via the amplifier 45. C
The D decoder 46 reproduces the data on the optical disc 41 according to the recording format of the compact disc. This reproduction data is supplied to the terminal 71B of the switch circuit 71. Further, the control data is supplied to the terminal 72B of the switch circuit 72.

The CD-I playback device 5 is a normal CD-I playback device. This CD-I playback device 5 has a CD-R
An OM reproducing circuit 51 is provided. Further, a 68000-series MPU 53 is provided. CD-ROM reproduction circuit 51
Then, the data is reproduced. This playback data is MPU5
Under the control of No. 3, it is sent to the bus 54. The bus 54 includes an audio decoder 55 and a video controller 56.
A and 56B are connected. Video controller 56A
RAMs 60A and 60B are connected to and 56B. Further, the bus 54 has a clock circuit 57 and a system RO.
The M58 and the non-volatile memory 59 are connected.

The audio data is supplied to the audio decoder 55. The audio signal is reproduced by the audio decoder 55. This audio signal is D /
It is supplied to the A converter 61. D / A converter 61
Causes the audio signal to be converted into an analog signal.
This analog audio signal is a low pass filter 62,
It is output from the output terminal 64 via the amplifier 63.

The image data is the video controller 56A.
And 56B. The outputs of the video controllers 56A and 56B are supplied to the video synthesizer 65. The video signal is reproduced by the video synthesizer 65. This image signal is output to the output terminal 67 via the amplifier 66.
Is output from.

FIG. 2 is a flow chart showing a process for making a disc by using the CD-I application development system to which the present invention is applied. As shown in FIG. 2, material data such as audio data and image data is taken in (step 101). This material data is edited and an application program is created (step 102). The created application program is format-converted by the format converter 15 (step 103). Then, it is stored in the disk image memory 18.

The processes up to this point do not have to be performed in real time. When the application program is developed in this way, the state when it is operated on the actual disc is confirmed before actually creating the disc.

That is, the switch circuits 71 and 72 are set on the terminals 71A and 72A side. When the disk is accessed from the system controller 52, the CD
-Data and control data are loaded into the ROM encoder 22 from the disk image memory 18 and the additional information generator 21 based on the access information (step 104). C
The D-ROM encoder 22 interleaves and scrambles the data taken in and adds an error correction code. Also, a status signal is returned from the CD-ROM encoder 22 (step 10).
5).

This data is reproduced (step 10)
6). As a result, the application developer can confirm the actual playback timing of the CD-I disc without creating the disc (step 10).
7). As a result of this confirmation, the real-time processing part can be debugged.

If there is a bug, the process returns to step 102. If there is no bug, the disc production device 3 produces an actual disc (step 108). The created disc is mounted on the disc reproducing device 4, and the switch circuits 71 and 72 are switched to the terminals 71B and 72B. Then, the operation of the actual disc is confirmed (step 109). After reproducing the actual disc and confirming that there is no bug (step 110), the development of the application software is completed.

In one embodiment of the present invention, since the operating state when the disc is accessed is simulated before the actual disc is created, it is possible to confirm the operating state of the portion for which real-time processing is required. Therefore, new bugs are rarely found on the actual disk,
Application development efficiency is dramatically improved.

[0028]

According to the present invention, when the CD-I application is developed, the actual operation on the disk can be simulated on the memory, so that the real-time operation can be confirmed and the development efficiency of the application system is improved. To be done.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart used to describe an embodiment of the present invention.

[Explanation of symbols]

 1 Application Development Machine 2 Virtual Disk Creation Unit 3 Disk Control Device 4 Disk Playback Device 5 CD-I Playback Device 18 Disk Image Memory 71, 72 Switch Circuit

Claims (5)

[Claims] 1. A data processing apparatus for editing a plurality of types of material information and recording the material information on an optical disc, comprising a material information storage unit for storing the plurality of types of material information, and material information stored in the material information storage unit. Editing means for temporally editing, format conversion means for converting the format of the edited material information into a recording format of the optical disc, and encoding the format-converted data according to the format of the optical disc. A data processing device comprising an encoding means and capable of simulating the state of an optical disc. 2. A data processing device for editing a plurality of types of material information and recording the information on an optical disc, wherein the material information storage means stores the plurality of types of material information, and the material information stored in the material information storage means. Editing means for temporally editing, format conversion means for converting the format of the edited information into the recording format of the optical disc, and the format-converted data is encoded according to the format of the optical disc. A data processing device comprising an encoding means and a decoding means for decoding the data from the encoding means and reproducing the plurality of types of material information, and enabling simulation of the state of an optical disc. 3. A data processing device for editing a plurality of types of material information and recording the information on an optical disc, wherein the material information storage means for storing the plurality of types of material information and the material information stored in the material information storage means Means for dynamically editing, a format converting means for converting the format of the edited information into a recording format of the optical disc, and an encoding means for encoding the format-converted data according to the format of the optical disc. A disc reproducing means for reproducing a recording signal of an optical disc on which plural kinds of material information are edited and recorded; a selecting means for selecting data from the encoding means or an output of the disc reproducing means; The data from the encoding means or the disc selected by Decoding the output of the raw device, and a decoding means for reproducing the plurality of types of information, the data processing apparatus so as to perform a simulation of the state of the optical disc. 4. The encoding means is constructed on a detachable single board.
The described data processing device. 5. The data processing apparatus according to claim 1, wherein the plurality of types of information include an image signal and an audio signal.