JP2005085391A - Method and device for creating multimedia contents data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of producing a disk which has data conforming to two specifications that the disk requires separate production processes employing separate authoring systems for respective specifications. <P>SOLUTION: An input data conversion section and an integrated data creation section are provided. Even when a disk having two specifications is produced, the input data conversion section receives only video and acoustic materials and scenario data that are required to reproduce the materials which are conforming to either one of the specifications and conducts automatic conversion of the video and acoustic materials and scenario data so that they conform to a second record format to be formed on recording media, if required. The integrated data creation section integrates the data corresponding to the second record format to the data corresponding to a first record format. Thus, a multimedia contents data creation method and a production device for producing a disk having two specifications with work contents that are approximately identical with work contents to produce a disk having a single specification are provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an efficient method and apparatus for creating multimedia content including data in accordance with two different standards on a single recording medium.

  If data that conforms to two different standards is recorded on a single recording medium, it can be played back by a player that supports either standard, so that the number of players that can play that recording medium increases. It will be a high added value. In general, in order to create data in accordance with two different standards, it is necessary to start an authoring system for each standard and perform production work separately. As a result, the production cost is higher because the number of work steps is larger than the production of single-standard data. In some cases, it is necessary to separately prepare video and audio materials that conform to the specifications of each standard. In this case, the production cost further increases.

  Therefore, in order to avoid such work and duplication of material data, it is possible to automatically convert the format of data according to one of two different standards and create the data according to the other standard. Conceivable. As a conventional method of creating multimedia content data, there is a method of converting content data of the DVD-Video standard from content data of the DVD-VR standard and creating it (see, for example, Patent Document 1). FIG. 3 shows a conventional efficient method of creating multimedia content data described in Patent Document 1.

  In FIG. 3, the information recorded in the DVD-VR format on the hard disk drive 600 is decoded by the DVD-VR system decoder 800, and the decoded signal is converted into the DVD-Video format information by the format conversion unit 900. The microcomputer unit 1000 detects a change in the parameter of the decode signal, creates management information for managing the decode signal following the change of the parameter as a new title of information in the DVD-Video format, and sends it to the format conversion unit 900 Output. Thereafter, content data in the DVD-Video format is created by combining the decode signal and the management information, and recorded on the optical disc via the optical disc drive 700.

Through the above processing, when creating DVD-Video standard data from the DVD-VR standard, the restrictions that differ between the two standards are automatically corrected for the stream specifications without requiring the operation of the producer. Since it becomes possible to create management information data of the Video standard, content data of the DVD-Video standard has been efficiently created.
JP 2003-153170 A (first page, FIG. 1)

  However, the above-described conventional configuration is based on the premise that content data of the DVD-VR standard has been created in advance, and the content data of the DVD-Video standard having the same contents as the content data is created. It does not include a configuration for content creators to arbitrarily create scenario data for content playback, such as video and audio material playback methods and menu configurations.

  Further, since the content data created on the recording medium after the data format conversion is only the DVD-Video standard content data, for example, the DVD-VR standard and DVD-Video standard content data are recorded on the same recording medium. Therefore, there is a problem that it does not include a configuration.

  Therefore, an object of the present invention is to solve the above-described conventional problems, and content data having two standards in a single recording medium is obtained based on an arbitrary video material, audio material, and reproduction scenario. It is an object of the present invention to provide a multimedia content data creation method and creation apparatus that can efficiently produce content with almost the same work contents as the production of standard content data.

The multimedia content data creation method of the present invention is a method for creating multimedia content data suitable for a plurality of different recording formats on a single recording medium.
The multimedia content data creation method includes a video material input step, an audio material input step, a menu material input step, a scenario data input step, a first data format step, a second data format step, an input data conversion step, and an integrated data creation step. including. In the video material input step, a video material is input. In the acoustic material input step, an acoustic material is input. In the menu material input step, a menu material is input. In the scenario data input step, scenario data relating to reproduction of video material, audio material, and menu material is input. In the first data formatting step, data corresponding to the first recording format is created. In the second data format step, data corresponding to a second recording format different from the first recording format is created. In the input data conversion step, the respective output data in the video material input step, the sound material input step, the menu material input step, and the scenario data input step are automatically converted as necessary so as to conform to the second recording format. . In the integrated data creation step, output data from the first data format step and the second data format step are input, and data corresponding to the second recording format is integrated into data corresponding to the first recording format. To record on other recording media.

  The multimedia content data creation device of the present invention is a creation device that creates multimedia content data suitable for a plurality of different recording formats on a single recording medium. A multimedia content data creation device includes a video material input unit, an audio material input unit, a menu material input unit, a scenario data input unit, a first data format unit, a second data format unit, an input data conversion unit, and an integrated data creation unit Is provided. The video material input unit inputs video material. The acoustic material input unit inputs an acoustic material. The menu material input unit inputs menu material. The scenario data input unit inputs scenario data related to reproduction of video material, audio material, and menu material. The first data format unit creates data corresponding to the first recording format. The second data format unit creates data corresponding to a second recording format different from the first recording format. The input data converter automatically converts the output data of the video material input unit, the sound material input unit, the menu material input unit, and the scenario data input unit so as to conform to the second recording format as necessary. To do. The integrated data creation unit inputs the output data of the first data format unit and the second data format unit, and integrates data corresponding to the second recording format into data corresponding to the first recording format. To record on other recording media.

  According to the multimedia content data creation method and creation apparatus of the present invention, video, audio material, and scenario data are automatically converted as necessary to conform to the second recording format, and further the second recording format. Can be automatically integrated with the data of the first recording format, so the man-hours for authoring are greatly reduced, and it is not necessary to prepare video and audio material for each recording format. In other words, the authoring work and the preparation of the video and audio material may be almost the same work contents as the production of a single standard disc, so multimedia contents having two standards on one recording medium without imposing a burden on the production side Data can be created easily.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a multimedia content data creation apparatus according to an embodiment of the present invention.

  In FIG. 1, the multimedia content data creation apparatus includes a video material input unit 101, an audio material input unit 102, a menu material input unit 103, a scenario data input unit 104, and an input data conversion unit 200. The input data conversion unit 200 converts the output data of the video material input unit 101, the sound material input unit 102, the menu material input unit 103, and the scenario data input unit 104 so as to conform to the second format as necessary. In order to do this, a video material conversion unit 201, an acoustic material conversion unit 202, a menu material conversion unit 203, a scenario data conversion unit 204, and a conversion table storage unit 205 are included. Also, the multimedia content data creation device integrates the output data of the first data format unit 300, the second data format unit 400, and the first data format unit 300 and the second data format unit 400 into a single recording medium. An integrated data creation unit 500 that creates data for recording is provided.

  The multimedia content data creation apparatus configured as described above can be realized by general-purpose PC hardware components and application software operating on a general-purpose OS.

  FIG. 2 is a schematic diagram showing the configuration of a general-purpose PC that implements the multimedia content data creation apparatus according to this embodiment. In the following description, data input, material data designation, and processing result display are displayed on the GUI 113 on the display 112 using the keyboard 110 and the mouse 111, and various material data and created content data are built in the PC. It is assumed that it is stored in a large-capacity recording medium such as the hard disk 114 to be recorded. Further, it is assumed that data format processing and transfer processing are performed by processing software operating on a PC CPU using an internal memory or an internal data bus.

  In the embodiment described below, the first data formatting unit 300 creates data conforming to the DVD-Audio standard, and the second data formatting unit 400 creates data conforming to the DVD-Video standard.

  First, in the scenario data input unit 104, data corresponding to the scenario of the DVD-Audio disc, such as the content of the reproduced music of the DVD-Audio disc to be produced and the menu structure, is input. The scenario data is input from the GUI 113 for scenario input displayed on the display 112 of the PC constituting the multimedia content data creation apparatus. In the scenario input GUI 113 shown in FIG. 2, scenario data including a menu and three songs from Track01 to Track03 is input.

  Next, necessary materials based on the scenario data are input to the video material input unit 101, the sound material input unit 102, and the menu material input unit 103, respectively. Here, it is assumed that video material and audio material data as materials are stored in the hard disk 114 of the PC constituting the multimedia content data creation device as a general-purpose computer file having attributes conforming to the DVD-Audio standard. In the GUI 113 for scenario input shown in FIG. 2, the video material data displayed as the background image during playback of Track01 to Track03 is Track01. TIF-Track03. Similarly, as the TIF, the sound material data reproduced in Track01 to Track03 is Track01. WAV-Track03. As the WAV, the menu material data displayed as the menu screen is Menu. Each is displayed as a TIF.

  By using the scenario data and various material data input so far, the first data formatting unit 300 can create data that conforms to the DVD-Audio standard, and data that conforms only to the DVD-Audio standard. When creating a content creator, the work of the content creator is about that.

  However, in the DVD-Audio standard, it is possible to have two data areas of DVD-Audio and DVD-Video on a single DVD medium, and such DVD-Audio discs are already widely used DVD-Video. Since the player can reproduce the data in the DVD-Video area, the added value as a disc is high. However, even when a DVD-Audio disc having this DVD-Video area is produced, the above-described problems exist.

  Therefore, in this embodiment, data creation for the content creator conforms only to the DVD-Audio standard by automatically creating the data for the DVD-Video area and integrating the data for the DVD-Audio area. This is almost the same as the case of making a DVD-Audio disc having a DVD-Video area.

  First, of the above contents, the DVD-Video area data creation is performed by using the input data conversion unit 200 for video material, audio material, menu material and scenario data having attributes conforming to the DVD-Audio standard as necessary. This is done by converting to a specification conforming to the DVD-Video standard. Also, it is assumed that the specifications of the conversion process in the input data conversion unit 200 are stored in the conversion table storage unit 205 for each attribute of various materials.

  FIG. 4 shows an example of an acoustic material conversion specification extracted from the conversion table of the conversion table storage unit 205. In FIG. 4, the acoustic material attributes input to the acoustic material conversion unit 202 and the acoustic attributes converted and output by the acoustic material conversion unit 202 are shown for the input attributes.

  For example, when the specification of the input sound material is uncompressed linear PCM and the sampling frequency, the number of quantization bits, and the number of channels are 96 kHz, 24 bits, and 2 ch, the conversion table storage unit 205 is referred to, and the conversion in the table is performed. Specification No. 1, down conversion processing is executed in the acoustic material conversion unit 202, and output acoustic attributes are 48 kHz, 16 bits, and 2 ch. Also, the conversion specification No. in the same table. 2, if the same attribute is permitted in the DVD-Audio standard and the DVD-Video standard, the sound material conversion unit 202 does not perform the conversion process. Furthermore, the conversion specification No. 3, the input material of linear PCM is compressed by the AC3 method. As described above, the acoustic material conversion unit 202 can perform down-conversion processing and compression encoding processing necessary for changing the acoustic attributes. Such conversion processing is performed by the CPU of the PC in FIG. It is also assumed that the hardware processing may be performed, or the hardware may be executed by dedicated hardware such as a DSP under the control of the CPU of the PC.

  Also, the conversion specifications of the conversion table storage unit 205 shown in FIG. 4 may be fixed in advance, or the content creator can modify, add, or select an arbitrary conversion table as necessary. It may be a thing.

  The conversion of the sound material in the input data conversion unit 200 has been described above, but other video materials and menu materials are also converted to specifications conforming to the DVD-Video standard as necessary for the same operation as the conversion of the sound material. It shall be possible.

  Similarly, scenario data is created by automatically converting scenario data for the DVD-Video area from scenario data input for DVD-Audio, and the conversion specifications are the same as for the material data. Assume that it is stored in the storage unit 205.

  As the scenario data conversion specification in this embodiment, the DVD-Audio area attribute data is created from the DVD-Audio area attribute data in the DVD-Audio area scenario data in accordance with the material data conversion process, Furthermore, the DVD-Video area data is reproduced in the same order as the DVD-Audio area, and the DVD-Audio player and the DVD-Video player have the same music number displayed on both players. -The playback order data for the DVD-Video area is created from the playback order data of the DVD-Audio area in the scenario data of the Audio area.

  Next, various material data and scenario data converted into attributes conforming to the DVD-Video standard in the input data converting unit 200 are input to the second data format unit 400, and data in a format conforming to the DVD-Video standard is obtained. Created.

  Integration with the data in the DVD-Audio area is performed in the integrated data creation unit 500. The data conforming to the DVD-Video standard created by the second data formatting unit 400 is integrated into the data conforming to the DVD-Audio standard created by the first data formatting unit 300 to form a single DVD-Audio disc. Integrated data that can be recorded. As a specific process for creating the integrated data, the DVD-Video area data to be integrated is transferred to the same directory hierarchy as the DVD-Audio area data, and the data of the data to be arranged on a single recording medium is stored. It is assumed that address information is determined and program information for reproducing data in the DVD-Video area is added to scenario data of the DVD-Audio disc after integration, and the integrated data after integration conforms to the DVD-Audio standard. That is.

  With such a configuration, even for disc production having two standards, video and audio materials and scenario data for reproducing these materials must be input only in conformity with the DVD-Audio standard. On the other hand, the data format conversion conforming to the DVD-Video standard and the data integration with the DVD-Audio area are automatically converted and created by internal processing, so that the authoring work and the preparation of video and audio materials are simple. It is possible to easily produce a disc having two standards with almost the same work content as the production of one DVD-Audio standard disc and without burdening the production side.

  The multimedia content data creation method and creation device according to the present invention automatically converts video, audio material, and scenario data to conform to the second recording format as necessary, and supports the second recording format. Therefore, it is useful as a system capable of efficiently producing a DVD-Audio disc having a DVD-Video area.

1 is a block diagram of a multimedia content data creation device according to an embodiment of the present invention. 1 is a schematic diagram showing the configuration of a general-purpose PC that implements a multimedia content data creation device according to an embodiment of the present invention. Block diagram of a conventional multimedia content data creation device Example of acoustic material conversion specification table in conversion table storage unit according to one embodiment of the present invention

Explanation of symbols

101 Video material input unit 102 Sound material input unit 103 Menu material input unit 104 Scenario data input unit 110 Keyboard 111 Mouse 112 Display 113 GUI
114 Hard disk 200 Input data conversion unit 201 Video material conversion unit 202 Sound material conversion unit 203 Menu material conversion unit 204 Scenario data conversion unit 205 Conversion table storage unit 300 First data format unit 400 Second data format unit 500 Integrated data creation unit 600 Hard disk drive 700 Optical disk drive 800 DVD-VR decoder 900 Format conversion unit 1000 Microcomputer unit

Claims (6)

A method of creating multimedia content data suitable for a plurality of different recording formats on a single recording medium,
A video material input step for inputting the video material;
An acoustic material input step for inputting an acoustic material;
Menu material input step for inputting menu material,
Scenario data input step for inputting scenario data relating to reproduction of the video material, the audio material, and the menu material;
A first data formatting step for creating data corresponding to the first recording format;
A second data formatting step for creating data corresponding to a second recording format different from the first recording format;
Input that automatically converts the output data of the video material input step, the sound material input step, the menu material input step, and the scenario data input step so as to conform to the second recording format as necessary. A data conversion step;
A single recording is performed by inputting output data from the first data formatting step and the second data formatting step, and integrating data corresponding to the second recording format into data corresponding to the first recording format. A method for creating multimedia content data, comprising: an integrated data creation step for enabling recording on media. The input data conversion step includes
Conversion stored for conversion specifications for conforming to the second recording format for each output data in the video material input step, the acoustic material input step, the menu material input step, and the scenario data input step A table accumulation step;
A video material conversion step of converting attributes of the video material input in the video material input step;
An acoustic material conversion step for converting attributes of the acoustic material input in the acoustic material input step;
A menu material conversion step for converting attributes of the menu material input in the menu material input step;
The multimedia content data creation method according to claim 1, further comprising a scenario data conversion step of converting the scenario data input in the scenario data input step.   The acoustic material conversion step converts the attribute of the acoustic data by at least one method of conversion of a sampling frequency of acoustic data, conversion of the number of quantization bits, conversion of the number of channels, and compression encoding. Multimedia content data creation method. A creation device for creating multimedia content data suitable for a plurality of different recording formats on a single recording medium,
A video material input unit for inputting video material;
An acoustic material input unit for inputting acoustic material;
A menu material input section for inputting menu material;
A scenario data input unit for inputting scenario data relating to reproduction of the video material, the sound material, and the menu material;
A first data format section for creating data corresponding to the first recording format;
A second data format unit for creating data corresponding to a second recording format different from the first recording format;
Input that automatically converts the output data of the video material input unit, the sound material input unit, the menu material input unit, and the scenario data input unit so as to conform to the second recording format as necessary. A data converter,
By inputting the output data of the first data format portion and the second data format portion and integrating the data corresponding to the second recording format into the data corresponding to the first recording format, a single recording is performed. A multimedia content data creation device comprising an integrated data creation unit that enables recording on a medium. The input data converter is
Conversion stored for conversion specifications for conforming to the second recording format for the output data of the video material input unit, the acoustic material input unit, the menu material input unit, and the scenario data input unit A table storage unit;
A video material conversion unit that converts attributes of the video material input to the video material input unit;
An acoustic material conversion unit that converts attributes of the acoustic material input to the acoustic material input unit;
A menu material conversion unit for converting the attributes of the menu material input to the menu material input unit;
The multimedia content data creation device according to claim 4, further comprising a scenario data conversion unit that converts scenario data input to the scenario data input unit. The acoustic material converter converts the attribute of the acoustic data by at least one method of conversion of sampling frequency of acoustic data, conversion of the number of quantization bits, conversion of the number of channels, and compression encoding. Multimedia content data creation device.

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