JP2008252741A - Information processing apparatus and method, program, data structure, and program storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To unify formats of data to be recorded. <P>SOLUTION: Extension information stored in each of first, second and third formats to be handled by a video processor is different from one another and some formats may not contain extension information itself such as a broadcast signal. A data structure of an extension format for recording is determined such that extension data that the extension format for recording contains become 'OR' of first to third attribute data that are extension information contained in data structures of respective formats of source data. Accordingly, when outputting data which are recorded as an extension format for recording, as any one of first format, second format and third format, the extension format for recording also includes recording regions for extension information of any formats, such that format conversion in outputting is facilitated. The present invention may be applicable to video processors. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information processing device, an information processing method, a program, a data structure, and a program storage medium, and in particular, an information processing device, an information processing method, a program, a data structure, and the like suitable for format conversion. In addition, the present invention relates to a program storage medium.

  Conventionally, in order to manage an AV (Audio Visual) stream, two layers of a clip that is a pair of an AV stream and Clip Information that is information accompanying the AV stream and a PlayList having a time stamp that specifies an access point of the clip are provided. An application format is used (see, for example, Patent Document 1).

JP 2002-1557859 A

  By the way, there are cases where there are a plurality of formats in such an application format.

  For example, suitable for handling various types of content such as content shot with a video camera, content recorded from analog broadcast and analog line input, content recorded and distributed on removable recording media, and digital broadcast content A plurality of formats may be prepared.

  Then, it is required that such a plurality of formats of content be handled by the same device and subjected to format conversion as necessary.

  The present invention has been made in view of such a situation, and allows a plurality of formats of content to be handled by the same device and format conversion to be performed as necessary.

  An information processing method according to a first aspect of the present invention is a content program of a first format and a second format configured to include a transport stream and playback management information for managing playback of the transport stream. An information processing apparatus for performing format conversion, wherein the first format having the first attribute data not in the second format in an area other than the extension area of the reproduction management information, or the reproduction management information Acquisition means for acquiring the content program of the second format having second attribute data not in the first format in the extension area, and the type of the format of the content program acquired by the acquisition means First detection means to detect and detection result by the first detection means Based on this, the content program acquired by the acquisition means has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the extended area of the reproduction management information. And a first conversion means for converting into a recording extended format content program having an area for describing two attribute data.

  A part of the information described in the first attribute data included in the content program of the extended format for recording converted by the first converting means and the information described in the second attribute data Can be the same information.

  When converting the content program in the first format into the content program in the extended format for recording, the first conversion means refers to the first attribute data and stores it in the extension area of the reproduction management information. Information can be written in at least a part of the area where the second attribute data is arranged.

  When converting the content program in the second format into the content program in the extended format for recording, the first conversion means refers to the second attribute data and is not in an extension area of the reproduction management information. The information can be written in at least a part of the area describing the first attribute data arranged in the area.

  A recording control means for controlling the recording of the content program in the extended format for recording converted by the first converting means in the recording section can be further provided.

  Reading means for reading the content program in the extended format for recording recorded in the recording unit, and the content program in the extended format for recording read by the reading means are the first format or the second Second format conversion means for converting the format into any one of the formats can be further provided.

  Second detection means for detecting a format type before the content program of the recording extended format read by the reading means is converted to the recording extended format by the first conversion means; Notification control means for controlling notification to the user of the type of format before being converted to the extended format for recording detected by the second detection means can be further provided.

  The acquisition unit can further acquire the content program in the second format in which second attribute data is not described, and the first conversion unit acquires the content program by the acquisition unit. An area in which the first attribute data is described in an area other than the reproduction management information extension area, and the second attribute data is described in the reproduction management information extension area. Can be further converted into a content program in an extended format for recording.

  The acquisition unit can further acquire a transport program that does not include the raw management information and a content program including the attribute information thereof, and the first conversion unit includes the attribute information The content program acquired by the acquisition means has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the extended area of the reproduction management information It can be further converted into a content program in an extended format for recording having an area for describing the second attribute data.

  An information processing method according to a first aspect of the present invention is a content program of a first format and a second format configured to include a transport stream and playback management information for managing playback of the transport stream. An information processing method of an information processing apparatus that executes format conversion, wherein the first format has first attribute data not in the second format in an area other than the extension area of the reproduction management information, or Obtaining the content program in the second format having second attribute data not in the first format in the extension area of the reproduction management information, and detecting the type of the format of the obtained content program; Based on the detection result of the format type, the acquired content A recording medium having an area in which the first attribute data is written in an area other than the extended area of the reproduction management information, and an area in which the second attribute data is written in the extended area of the reproduction management information. Converting to an extended format content program.

  A program according to a first aspect of the present invention is a format conversion of a content program in a first format and a second format including a transport stream and playback management information for managing playback of the transport stream. The first format having the first attribute data not in the second format in the area other than the extension area of the reproduction management information, or the reproduction management information The content program of the second format having the second attribute data not in the first format in the extension area is detected, the format type of the acquired content program is detected, and the format type Based on the detection result, the acquired content A program having an area for describing the first attribute data in an area other than the extension area of the reproduction management information, and an area for describing the second attribute data in an extension area of the reproduction management information The computer is caused to execute a process including a step of converting into a content program in an extended format for use.

  In the first aspect of the present invention, the first format having the first attribute data not in the second format in the area other than the extension area of the reproduction management information, or the first area in the extension area of the reproduction management information. The content program of the second format having the second attribute data that is not in the format of is acquired, the format type of the acquired content program is detected, and the acquired content is based on the detection result of the format type The program has an area for recording the first attribute data in an area other than the extension area of the reproduction management information and an area for writing the second attribute data in the extension area of the reproduction management information. It is converted into a content program.

  An information processing apparatus according to a second aspect of the present invention includes a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream. An information processing apparatus that executes format conversion of a content program of a first format, a second format, and a third format, wherein the second format and the second format are set in an area other than the extension area of the reproduction management information. The first format having the first attribute data not in the third format, the first format having the second format data not in the first format and the third format in the extension area of the reproduction management information 2 format, or the entity management information includes the first format And acquisition means for acquiring the content program in the third format having third attribute data not in the second format, and detection for detecting a type of the format of the content program acquired by the acquisition means And an area for describing the first attribute data in an area other than the extension area of the reproduction management information, the content program obtained by the obtaining means based on a detection result by the detecting means, Converted to a content program in an extended format for recording, having an area for describing the second attribute data in the extended area of the reproduction management information, and an area for describing the third attribute data in the entity management information Conversion means.

  The acquisition unit can further acquire the attribute information along with the content program in the third format, and the conversion unit can store the content program in the third format in the extended format for recording. When converting to the content program, information is described in at least a part of the area describing the first attribute data arranged in an area other than the extended area of the reproduction management information with reference to the attribute information Can be.

  The acquisition unit can further acquire the attribute information along with the content program in the third format, and the conversion unit can store the content program in the third format in the extended format for recording. When converting to the content program, the attribute information is referred to cause the information to be described in at least a part of the area describing the second attribute data arranged in the extended area of the reproduction management information. be able to.

  An information processing method according to a second aspect of the present invention includes a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream. An information processing method of an information processing apparatus that executes format conversion of content programs in a format 1, a second format, and a third format, wherein the second information is stored in an area other than the extended area of the reproduction management information. The first format having the first attribute data not in the format and the third format, and the second attribute data not in the first format and the third format in the extension area of the reproduction management information In the second format having or the entity management information, the first The content program of the third format having the format and the third attribute data not in the second format is acquired, the format type of the acquired content program is detected, and the format type detection result And the second attribute is included in the extension area of the reproduction management information, the area having the first attribute data in an area other than the extension area of the reproduction management information. A step of converting into a content program in an extended format for recording having an area for describing data and having an area for describing the third attribute data in the entity management information.

  A program according to a second aspect of the present invention includes a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream. A program for causing a computer to execute format conversion of a format program, a second format, and a content program of a third format, wherein the second format and the third format are provided in an area other than the extension area of the reproduction management information The first format having the first attribute data not in the format, the second format having the second attribute data not in the first format and the third format in the extension area of the reproduction management information In the format or the entity management information, the first information The content program of the third format having the format and the third attribute data not in the second format is acquired, the format type of the acquired content program is detected, and the format type detection result And the second attribute is included in the extension area of the reproduction management information, the area having the first attribute data in an area other than the extension area of the reproduction management information. Causing the computer to execute a process including a step of converting into a content program in an extended format for recording, which has an area for describing data and has an area for describing the third attribute data in the entity management information.

  In the second aspect of the present invention, a first format having first attribute data not in the second format and the third format in an area other than the extension area of the playback management information, an extension area of the playback management information In the second format having the second attribute data not in the first format and the third format, or the third attribute data not in the first format and the second format is added to the entity management information. Content program of the third format is acquired, the format type of the acquired content program is detected, and based on the detection result of the format type, the acquired content program is other than the extension area of the reproduction management information The area has an area for describing the first attribute data, and the second attribute is included in the extended area of the reproduction management information. Has an area for describing data, it has a region wherein the third attribute data on the real management information, are converted into recording extended format content program.

  The data structure according to the third aspect of the present invention is a first format or a second format configured to include a transport stream and playback management information for managing playback of the transport stream in the information processing apparatus. A data structure of an extended format content program that is converted into a content program of the above-described content program, which is included in the first format in a region other than the transport stream and the extended region of the reproduction management information. The first attribute data not included in the second format, and the second attribute data included in the second format but not included in the first format in the extension area of the reproduction management information, At least a part of the information described in the first attribute data and the second attribute data; The at least part of the information contained in data, the same information.

  In the third aspect of the present invention, the transport stream, the first attribute data included in the first format but not in the second format, in the area other than the extension area of the playback management information, and the playback The extended area of the management information includes second attribute data that is included in the second format but not in the first format, and at least a part of the information described in the first attribute data; The content program of the extended format that is the same information as at least a part of the information described in the attribute data 2 is format-converted into the first format or the second format in the information processing apparatus.

  The network is a mechanism in which at least two devices are connected and information can be transmitted from one device to another device. The devices that communicate via the network may be independent devices, or may be internal blocks that constitute one device.

  The communication is not only wireless communication and wired communication, but also communication in which wireless communication and wired communication are mixed, that is, wireless communication is performed in a certain section and wired communication is performed in another section. May be. Further, communication from one device to another device may be performed by wired communication, and communication from another device to one device may be performed by wireless communication.

  The video processing apparatus may be an independent apparatus, or may be a block that performs format conversion among apparatuses such as an information processing apparatus, a recording apparatus, a reproducing apparatus, and a recording / reproducing apparatus.

  As described above, according to the first aspect of the present invention, format conversion can be performed. In particular, the format-converted content data can be easily stored in the second area other than the extension area of the reproduction management information. The format can be converted into the first format having the first attribute data not in the format or the second format having the second attribute data not in the first format in the extension area of the reproduction management information. .

  According to the second aspect of the present invention, format conversion can be performed. In particular, the format-converted content data is converted into the second format and the third format in an area other than the extension area of the reproduction management information. A first format having no first attribute data, a second format having second attribute data not in the first format and the third format in the extension area of the reproduction management information, or entity management information In addition, the format can be easily converted to any one of the third format having the third attribute data not in the first format and the second format.

  According to the second aspect of the present invention, the first format having the first attribute data not in the second format in the area other than the extension area of the reproduction management information, or the extension area of the reproduction management information Thus, it is possible to provide extended format data having a data structure that can be easily converted into any of the second formats having the second attribute data not included in the first format.

  Embodiments of the present invention will be described below. Correspondences between constituent elements of the present invention and the embodiments described in the specification or the drawings are exemplified as follows. This description is intended to confirm that the embodiments supporting the present invention are described in the specification or the drawings. Therefore, even if there is an embodiment which is described in the specification or the drawings but is not described here as an embodiment corresponding to the constituent elements of the present invention, that is not the case. It does not mean that the form does not correspond to the constituent requirements. Conversely, even if an embodiment is described here as corresponding to a configuration requirement, that means that the embodiment does not correspond to a configuration requirement other than the configuration requirement. It's not something to do.

  The information processing apparatus (for example, the video processing apparatus 11 in FIG. 1) according to the first aspect of the present invention includes a transport stream and playback management information (for example, PlayList) that manages playback of the transport stream. An information processing apparatus that performs format conversion of content programs in a first format and a second format that are configured, wherein the first format is not in the second format in an area other than the extension area of the reproduction management information Acquisition means for acquiring the first format having attribute data or the content program in the second format having second attribute data not in the first format in an extension area of the reproduction management information ( For example, the recording data acquisition unit 101) in FIG. 27 and the content acquired by the acquisition unit. The first detection unit (for example, the format detection unit 102 in FIG. 27) for detecting the format type of the program, and the content program acquired by the acquisition unit based on the detection result by the first detection unit For recording, having an area for describing the first attribute data in an area other than the extension area of the reproduction management information, and an area for describing the second attribute data in the extension area of the reproduction management information. First conversion means (for example, the recording extended format conversion unit 103 in FIG. 27) for converting into an extended format content program is provided.

  Recording control means (for example, the recording control section 104 in FIG. 27) for controlling recording of the content program in the extended format for recording converted by the first conversion means to the recording section (for example, the local storage 36) is further provided. Can be provided.

  Reading means (for example, the data reading unit 105 in FIG. 27) for reading the content program in the recording extended format recorded in the recording unit, and the recording extended format content program read by the reading means, A second format conversion means (for example, the format conversion unit 108 in FIG. 27) that converts the format into either the first format or the second format can be further provided.

  Second detection means (for example, for detecting the type of the format before the content program of the recording extended format read by the reading means is converted to the recording extended format by the first conversion means) 27 and a notification control unit (for example, a format control unit for controlling the format type before being converted to the extended format for recording detected by the second detection unit). 27, and a notification control unit 107) of FIG.

  The acquisition means further includes a content program configured to include a transport stream that does not include the live management information (for example, a broadcast signal or content that is input in line-in) and attribute information (for example, metadata). The first conversion means can acquire the content program acquired by the acquisition means based on the attribute information in an area other than the extension area of the reproduction management information. Can be further converted into a recording extended format content program having an area for describing the second attribute data in the extended area of the reproduction management information.

  The information processing method according to the first aspect of the present invention includes a first format and a second format configured to include a transport stream and playback management information (for example, PlayList) for managing playback of the transport stream. An information processing method of an information processing apparatus for performing format conversion of a format content program, wherein the first attribute data not having the second format is provided in an area other than the extension area of the reproduction management information Or the content program in the second format having second attribute data not in the first format in the extended area of the reproduction management information (for example, processing in step S11 in FIG. 28) ) To detect the format type of the acquired content program (for example, FIG. 2). Step S12, step S14, step S16, or step S18), and based on the detection result of the format type, the acquired content program is placed in an area other than the extension area of the reproduction management information. And a content program of an extended format for recording having an area for describing the second attribute data in an extended area of the reproduction management information (for example, FIG. 29, FIG. 30). , The process described with reference to FIG. 31 or FIG. 32.

  The program according to the first aspect of the present invention includes a first format and a second format configured to include a transport stream and playback management information (for example, PlayList) for managing playback of the transport stream. A program for causing a computer to execute format conversion of a content program, the first format having first attribute data not in the second format in an area other than the extension area of the reproduction management information, or The content program of the second format having the second attribute data not in the first format in the extension area of the reproduction management information is acquired (for example, the process of step S11 in FIG. 28) and acquired. The type of the content program format is detected (for example, 28, the processing of step S12, step S14, step S16, or step S18), based on the format type detection result, the acquired content program is placed in an area other than the extension area of the reproduction management information. 1 is converted to a recording extended format content program having an area for describing one attribute data and an area for describing the second attribute data in the extension area of the reproduction management information (for example, FIG. 29, FIG. 29). 30, a process described with reference to FIG. 31, or FIG. 32.

  An information processing apparatus (for example, the video processing apparatus 11 in FIG. 1) according to the second aspect of the present invention includes a transport stream, entity management information (for example, ClipInfomation) for managing the entity of the transport stream, and the transport An information processing apparatus that executes format conversion of content programs in a first format, a second format, and a third format configured to include playback management information (for example, PlayList) that manages playback of a stream. The first format having first attribute data not in the second format and the third format in an area other than the extension area of the playback management information, and the first format in the extension area of the playback management information. The second attribute data not in the first format and the third format 2 or an acquisition means for acquiring the content program in the third format having third attribute data not in the first format and the second format in the entity management information (for example, 27), detection means for detecting the format type of the content program acquired by the acquisition means (for example, the format detection section 102 in FIG. 27), and detection results by the detection means. The content program acquired by the acquisition means has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the extended area of the reproduction management information includes the An area for describing second attribute data, and the third attribute data is included in the entity management information. It has a region mounting, and a converting means for converting the recording extended format content program (e.g., the recording extension format converting unit 103 of FIG. 27).

  The acquisition means can further acquire attribute information (for example, extended metadata) together with the content program in the third format, and the conversion means can acquire the content program in the third format for the recording. When converting to an extended format content program, the attribute information is referred to and information is stored in at least a part of the area describing the first attribute data arranged in an area other than the extended area of the reproduction management information. Can be described.

  The acquisition means can further acquire attribute information (for example, extended metadata) together with the content program in the third format, and the conversion means can acquire the content program in the third format for the recording. When converting to an extended format content program, refer to the attribute information and describe information in at least a part of the area describing the second attribute data arranged in the extended area of the reproduction management information Can do.

  The information processing method according to the second aspect of the present invention includes a transport stream, entity management information for managing the entity of the transport stream (for example, ClipInfomation), and reproduction management information for managing the reproduction of the transport stream (for example, , PlayList), an information processing method of an information processing apparatus for performing format conversion of content programs in a first format, a second format, and a third format, wherein the playback management information The first format having the second format and the first attribute data not in the third format in an area other than the extension area, the first format and the third in the extension area of the reproduction management information The second format having second attribute data not in the format Alternatively, the content program in the third format having third attribute data not in the first format and the second format is acquired in the entity management information (for example, step S11 in FIG. 28). ), And the format type of the acquired content program is detected (for example, the process of step S12, step S14, step S16, or step S18 in FIG. 28), and based on the detection result of the format type, The acquired content program has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and describes the second attribute data in the extended area of the reproduction management information. A recording extended frame having an area and an area for describing the third attribute data in the entity management information. It includes a step of converting into a format content program (for example, processing described with reference to FIG. 29, FIG. 30, FIG. 31, or FIG. 32).

  The program according to the second aspect of the present invention includes a transport stream, entity management information (for example, ClipInfomation) for managing the entity of the transport stream, and reproduction management information (for example, PlayList) for managing reproduction of the transport stream. ) Including a first format, a second format, and a third format of a content program configured to include a program for causing the computer to perform format conversion in an area other than the extension area of the reproduction management information. The first format having first attribute data not in the second format and the third format, and the first format and the third format not in the extension area of the reproduction management information The second format having two attribute data; Alternatively, the content program in the third format having third attribute data not in the first format and the second format is acquired in the entity management information (for example, in step S11 in FIG. 28). Process), and the format type of the acquired content program is detected (for example, the process of step S12, step S14, step S16, or step S18 in FIG. 28), and acquired based on the detection result of the format type. An area in which the first attribute data is written in an area other than the extended area of the reproduction management information, and the second attribute data is written in the extended area of the reproduction management information And has an area for recording the third attribute data in the entity management information. A computer is caused to execute a process including a step of converting to a content program of a format (for example, a process described with reference to FIG. 29, FIG. 30, FIG. 31, or FIG. 32).

The data structure according to the third aspect of the present invention is a first format configured to include a transport stream and playback management information (for example, PlayList) for managing playback of the transport stream in the information processing apparatus. Or a data structure of a content program of an extended format (for example, a recording extended format) that is converted into a content program of the second format, and a transport stream;
The first attribute data included in the first format but not in the second format is included in an area other than the extension area of the reproduction management information, and the second attribute is included in the extension area of the reproduction management information. Second attribute data that is included in the format but not in the first format, and is described in at least a part of the information described in the first attribute data and the second attribute data. At least a part of the information is the same information.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of the video processing apparatus 11.

  For example, the video processing device 11 receives a broadcast signal, acquires content data equivalent to the broadcast signal via various networks including a telephone line and CATV, and records the received or acquired data internally. Then, it is possible to execute a process of outputting to the display device 13 and displaying it, or recording on a recording medium such as the mounted optical disk 12. Further, when the video processing apparatus 11 records the data recorded on the recording medium such as the mounted optical disk 12, the received data, or the data supplied from the outside, the data to be recorded is predetermined. The process of converting the format to the unified extended format for recording can be executed. Further, the video processing device 11 converts the format of the extended recording format recorded therein into a format specified by the user or suitable for the output method, and the data subjected to the format conversion process It is possible to execute processing such as recording on a recording medium such as the mounted optical disk 12 or supplying to another external device.

  The video processing apparatus 11 includes a control unit 31, an antenna 32, a broadcast reception control unit 33, a re-encoding processing unit 34, a conversion processing unit 35, a local storage 36, a disk drive 37, a network interface 38, an operation input acquisition unit 40, and playback control. The unit 41, the AV decoder unit 42, and the display control unit 43 are configured.

  The control unit 31 controls each unit of the video processing device 11. Specifically, for example, based on the user's operation input acquired by the operation input acquisition unit 40, the data recorded on the optical disk 12 mounted on the disk drive 37 is read, and the content desired by the user is reproduced. Control the process of recording in the local storage 36, and control the process of recording the broadcast signal whose reception is controlled by the broadcast reception control unit 33 and the data supplied via the network interface 38 in the local storage 36. To do.

  Further, the control unit 31 controls the conversion processing unit 35 to convert the format of the data to be recorded in the local storage 36 to the recording extended format, or to convert the recording extended format data recorded in the local storage 36. Controls the process of format conversion specified by the user or into a format suitable for the output method.

  The antenna 32 receives a broadcast signal and supplies it to the broadcast reception control unit 33.

  The broadcast reception control unit 33 performs tuning and demodulation of the broadcast signal received by the antenna 32, and the re-encoding processing unit 34 does not need to re-encode the demodulated broadcast signal when re-encoding is necessary. In this case, the data is supplied to the conversion processing unit 35.

  The re-encoding processing unit 34 performs a re-encoding process for converting a broadcast signal received by the broadcast reception control unit 33 into a data format that can be handled by the video processing device 11 based on the control of the control unit 31. Execute.

  The conversion processing unit 35 receives the broadcast signal received by the broadcast reception control unit 33, the data read from the optical disk 12 by the disk drive 37, the data supplied from the network interface 38, or the re-encoding processing unit 34 to re-encode the data. The format conversion of the encoded data and the like into the extended format for recording, and the supply and recording of the format-converted data to the local storage 36 are controlled. Furthermore, when the conversion processing unit 35 outputs the data recorded in the local storage 36 to the outside, specifically, the data recorded in the local storage 36 is recorded on the optical disk 12 by the processing of the disk drive 37. When the data is supplied to an external device or the like via the network interface 38, the data is specified by the user or converted into a format suitable for the output method. Details of the functions of the conversion processing unit 35, the data structure of the extended format for recording, and details of the format conversion processing will be described later.

  The local storage 36 is composed of, for example, a hard disk and records supplied data.

  The network interface 38 is connected to the network by wire or wirelessly, communicates with other devices via the network according to the control from the control unit 31, and converts data acquired from the other devices. The data supplied to the unit 35 or data supplied from the conversion processing unit 35 is transmitted to another device. The network interface 38 supplies the acquired content data to the conversion processing unit 35 when content data equivalent to the broadcast signal is acquired via various networks including a telephone line and CATV.

  For example, the disk drive 37 is loaded with a recording medium such as the optical disk 12, reads data from the loaded recording medium based on the control of the control unit 31, and supplies the data to the conversion processing unit 35 or the loaded optical disk. The data supplied from the conversion processing unit 35 is recorded on a recording medium such as 12.

  The operation input acquisition unit 40 includes, for example, a button, a key, a dial, a touch pad, or a reception unit that receives infrared rays supplied from a remote commander (not shown), acquires operation input from the user, It supplies to the control part 31.

  The reproduction control unit 41 controls reproduction of data by the AV decoder unit 42 based on the control of the control unit 31.

  Based on the control of the playback control unit 41, the AV decoder unit 42 converts the data acquired from the local storage 36 into the type of the data (for example, audio data, video data, text data, Based on whether the data is other data, etc.), the corresponding data is decoded and supplied to the external display device 13.

  Based on the control of the control unit 31, the display control unit 43 generates display screen data corresponding to, for example, a notification to the user or a menu screen, and supplies the display screen data to the external display device 13 to control the display. At the same time, the display screen data supplied from the conversion processing unit 35, for example, corresponding to a notification to the user or a menu screen is supplied to the external display device 13 to control the display.

  Next, an application format of data handled in the video processing device 11 will be described.

  FIG. 2 shows a simplified structure of an application format of data handled in the video processing apparatus 11.

  The application format has two layers, PlayList and Clip, for managing AV (Audio Visual) streams. Here, an AV stream and, if necessary, for example, a data stream that can be reproduced together with the AV stream, such as text data corresponding to subtitles, and accompanying information, for managing the entity of the corresponding AV stream A pair of Clip Information, which is information of the above, is considered as one object, and these are collectively referred to as Clip. Hereinafter, an AV stream data file is referred to as an AV stream file. A data file of Clip Information is referred to as a Clip Information file.

  In general, files used in computers are handled as byte strings, but contents composed of AV stream files and the like are expanded on the time axis, and clip access points are mainly designated by PlayLists with time stamps. Is done.

  When the access point in Clip is indicated by PlayList with a time stamp, the Clip Information file is used to find address information to start decoding in a stream such as an AV stream file from the time stamp.

  The PlayList is information for managing the playback of the AV stream, and is a set of information indicating playback sections such as the AV stream. Specifically, for example, information indicating one playback section in a certain AV stream is called PlayItem, and PlayItem is an IN point (playback start point) and OUT point (playback end point) of the playback section on the time axis. It is represented by a pair. Therefore, the PlayList is composed of one or a plurality of PlayItems as shown in FIG.

  Depending on the format, the PlayList can include extension data that can describe extension information, and the clip information can also include Clip Extension data that can describe extension information. The difference in data structure for each format will be described later with reference to FIG.

  In FIG. 2, the first PlayList shown first from the left is composed of two PlayItems, and the first PlayList and the second half of the AV stream included in the first Clip shown on the left side by the two PlayItems. Each part is referenced. Also, the second PlayList shown second from the left is composed of one PlayItem, so that the entire AV stream included in the second Clip shown on the right is referred to. Furthermore, the third PlayList illustrated third from the left is composed of two PlayItems, and by the two PlayItems, a predetermined part of the AV stream included in the first Clip illustrated on the left side, and Reference is made to a predetermined portion of the AV stream included in the second Clip shown on the right side.

  The navigation program (Navigation program) is a program for causing the playback control unit 41 to execute a function of controlling the playback order of the PlayList and interactive playback of the PlayList.

  The navigation program is composed of an index table (TableOfPlayList in the first format) and a Movie Object or BD-J Object read by the index table. The index table defines content titles and menus, and holds entry points for each title and menu. Details of the index table will be described later.

  Movie Object and BD-J Object have a function of controlling the playback order of the PlayList and interactive playback of the PlayList. Movie Object and BD-J Object also have a function of displaying a menu screen for the user to instruct execution of various reproductions. The BD-J Object is described in a programming language such as Java (registered trademark).

  For example, when the leftmost PlayItem included in the left PlayList is specified by the Movie Object or BD-J Object as the information indicating the playback position at that time, the AV stream included in the Clip referred to by the PlayItem Playback of the first half is performed. Thus, the PlayList is used as reproduction management information for managing reproduction of AV stream files and the like.

  In addition, a navigation command may be included in Movie Object and BD-J Object. The navigation commands are various commands for controlling playback of an AV stream file or the like.

  Further, in the PlayList described with reference to FIG. 2, in addition to the main path (Main Path) specified by PlayItem, information on the sub path (Sub path) specified by using the sub play item (Sub Play Item) is included. It can also be included. When SubPlayItem is defined, for example, an independent data stream that is not multiplexed with a Clip (for example, MPEG2 transport stream) specified by PlayItem can be played back in synchronization with AV stream playback.

  For example, subtitle related information composed of a text subtitle file and a font file necessary for rendering, corresponding to the clip AV stream of the main path (Main Path) specified by PlayItem, and the playback section of the subtitle related information By preparing a SubPlayItem that specifies, the subtitles corresponding to the data described in the text subtitle file are displayed in the display font based on the font data described in the font file simultaneously with the playback of the Clip AV stream. It can be displayed on the device 13. Also, for example, by providing dubbed audio data in another language and SubPlayItem corresponding to dubbed audio data in correspondence with the Clip AV stream of the main path specified by PlayItem, playback of the Clip AV stream At the same time, dubbed voice data in other languages can be reproduced and output.

  Similarly, in correspondence with the Clip AV stream of the main path (Main Path) specified by PlayItem, not only the text data stream (TextST stream) for subtitle display but also the bitmap subtitles such as a predetermined GUI display screen By preparing a PG stream (Presentation Graphics stream) that is a run-length-encoded stream, subtitles can be reproduced and output simultaneously with the reproduction of the Clip AV stream.

  Such content that can be played back by the video processing device 11 and data for playing back the content, in other words, a navigation program, PlayList, and Clip that can be handled by the video processing device 11 are stored in the content program or This is simply called a program.

  As described above, there are a plurality of formats of content programs (navigation program, PlayList, and Clip) that can be handled by the video processing device 11. In the video processing device 11, data is stored in the local storage 36. When recording, all the formats are converted to the extended format for recording, and the data of the extended format for recording recorded inside is converted to the format specified by the user or suitable for the output method Is output after

  The format of the content program that can be handled by the video processing device 11 includes, for example, a first format that is a data format that is assumed to record a broadcast stream as it is, a playback-only removable medium (for example, a playback-only optical disk, etc.) ) A second format which is a format close to the format for recording a content program (that is, a format that is very compatible with a format for playback-only removable media), and an AV shot with a camcorder or the like. A third format which is a data format is included. Further, as described above, the video processing apparatus 11 can receive broadcast content of analog broadcast or digital broadcast by the broadcast reception control unit 33, and can receive content of Line-in input or It is possible to acquire content distributed through a cable network or the like.

  Broadly classifying these formats, the broadcast recording system is the first format, such as broadcast signals and Lin-in, and the system for camcorders and playback-only discs is the second format and the third format. Become. The PlayLists in the second format and the third format have substantially the same configuration. The second format includes an editable one and an uneditable one.

  Differences between the first format, the second format, the third format, and the format of each broadcast signal will be described with reference to FIG.

  In the first format data, the attributes other than the basic information described in any of the first format to the third format are mainly described in the portion other than the extension data in the PlayList. It has 1st attribute data which is extended information. In addition, only basic information described in any of the first to third formats is described in the extension data portion in the PlayList. The clip information does not have ClipExtension data.

  In the data of the second format, basic information that is essential for basic operations such as playback of content described in any of the first format to the third format in the portion other than the Extension data in the PlayList. Only information is provided. In addition, in the extension data portion in the PlayList, in addition to the basic information described in any of the first to third formats, second attribute data that is extension information related to the stream to be played back is included. It is either described or does not have the Extension data itself in the PlayList. The clip information does not have ClipExtension data.

  In the third format data, only basic information described in any of the first format to the third format is described in a portion other than the Extension data in the PlayList. In addition, only basic information described in any of the first to third formats is described in the extension data portion in the PlayList. The clip information has third attribute data as extension information in ClipExtension data. In addition to PlayList and clip information, it has extended metadata that is information about the entire content.

  Also, the broadcast signal received by the video processing device 11 and the broadcast content data corresponding to the broadcast signal do not have playlist or clip information information. However, the broadcast signal received by the video processing device 11 and the broadcast content data corresponding to the broadcast signal are accompanied by so-called metadata in which information about the content is described according to a predetermined standard. There are many.

  Therefore, in the video processing apparatus 11 that can record all of these pieces of information in the local storage 36, the conversion processing unit 35 converts these pieces of information into an extended recording format that is a unified format, and then the local storage 36. It is made possible to record.

  The extended format for recording is basically an extended format based on the first format.

  FIG. 4 shows a directory structure of the extended format for recording.

  The directory structure of the extended format for recording is basically the same as the directory structure of the first format.

  The root directory includes a directory having a predetermined name, for example, a “BDAV” directory.

  All files and directories defined by this application format must be stored under the “BDAV” directory.

  The “BDAV” directory stores the following files.

  The “info.bdav” file is a file that stores overall information of the application layer created under the BDAV directory. There must be only one info.bdav under the BDAV directory. The file name is fixed to info.bdav. The info.bdav contains information indicating whether or not thumbnail images have been added to the content. Stored inside. The image is referenced using the settings in the menu.tidx file.

  In addition, the “info.bdav” file describes an index table in which information on a menu for reproducing a data file that can be reproduced by the video processing apparatus 11 is described.

  The “menu.tidx” file, and the “menu.tdt1” file and the “menu.tdt2” file store information related to the menu thumbnail image. menu.tidx is a “thumbnail information file” for storing header information of menu thumbnail images. The “menu.tdt1” file and the “menu.tdt2” file are “thumbnail image files” for storing image data of menu thumbnail images.

  The “mark.tidx” file, and the “mark.tdt1” file and the “mark.tdt2” file store information related to the mark thumbnail image. mark.tidx is a “thumbnail information file” for storing header information of mark thumbnail images. The “mark.tdt1” file and the “mark.tdt2” file are “thumbnail image files” for storing image data of mark thumbnail images.

  The “BDAV” directory includes at least three directories.

  Under the “PLAYLIST” directory, the database file of PlayList (FIG. 2) must be placed.

  The “xxxxx.rpls” file stores information related to one PlayList. One file with the file extension “rpls” or “vpls” is created for each PlayList.

  Under the “CLIPINF” directory, the database file of Clip (FIG. 2) must be placed.

  An AV stream file (FIG. 2) must be placed under the “STREAM” directory. The “CLIPINF” directory stores one file corresponding to each AV stream file.

  The “zzzzz.clpi” file is a Clip Information file corresponding to one AV stream file (Clip AV stream file). The file name is “zzzzz.clpi”, where “zzzzz” is the same as the corresponding PlayList file. The file extension must be "clpi".

  The “STREAM” directory stores AV stream files.

  The “zzzzz.m2ts” file is an AV stream file handled by a file system that stores the application format, that is, a Clip AV stream file. The file name is “zzzzz.m2ts”, where “zzzzz” is the same as the corresponding PlayList file. The file extension must be "m2ts".

  As described above, the directory structure of the extended format for recording is basically the same as the directory structure of the first format, but the data structure of the PlayList directory and the data structure of the ClipInfo directory However, unlike the data structure in the first format, it is extended to be compatible with the other second and third formats.

  Specifically, in the PlayList directory data in the extended format for recording, the first attribute data mainly corresponding to the broadcast signal is described in the portion other than the extension data portion, similarly to the first format. In the extension data portion, second attribute data that is not described in the first format and similar to that in the second format is described. In the data structure of the data in the ClipInfo directory, the clip information In the ClipExtension, third attribute data that is not described in the first format and is the same as that in the third format is described.

  Therefore, when the data in the first format is converted into the extended format for recording, the second attribute data similar to that in the second format not described in the first format in the extension data portion of the PlayList directory In this case, it is necessary to newly generate an area describing the ClipExtension including the third attribute data. When converting the data in the second format into the recording extension format, the first attribute data in the PlayList directory and the third It is necessary to newly generate an area describing a ClipExtension including the attribute data, and when converting the data in the third format to the recording extension format, the first attribute data in the PlayList directory and the extension data in the PlayList directory It is necessary to newly generate an area describing the second attribute data of the part, When converting such feed data to the recording extended format, it is necessary to newly generate a PlayList and ClipInformation.

  When a new area for describing each attribute data is generated at the time of recording extended format conversion, divertable information is diverted based on the data of each conversion source, and a new generated A value or information suitable for the region may be described, or a value that does not make sense may be described for a portion where the value cannot be determined.

  Next, a specific data structure of the recording extended format will be described.

  FIG. 5 shows the syntax of the PlayList file in the recording extended format. The PlayList file has the same UIAppInfoPlayList (), PlayList (), PlayListMark () as in the first format, and the area defined as MakersPrivateData () in the first format is replaced with ExtensionData () It has a configuration.

  PlayList_start_address indicates the head address of PlayList () with the relative number of bytes from the head byte of the PlayList file as a unit. The relative number of bytes is counted from zero.

  PlayListMark_start_address indicates the start address of PlayListMark () with the relative number of bytes from the start byte of the PlayList file as a unit. The relative number of bytes is counted from zero.

  ExtensionDataStartAddress is a value representing the relative address from the first byte of the xxxxx.rpls / yyyyy.vpls file as the start address of ExtensionData (). The relative number of bytes is counted from zero.

  The other syntax fields are not necessary for describing the embodiment of the present invention, and thus description thereof is omitted.

  The UIAppInfoPlayList () area can store first attribute data mainly for broadcasting regarding the PlayList, as in the first format. UIAppInfoPlayList () will be described later with reference to FIG.

  The PlayList () area stores parameters related to the main path and sub path of the PlayList.

  The PlayListMark () area stores PlayList mark information, that is, information related to marks that are jump destinations (jump points) in user operations or commands that command chapter jumps and the like.

  The PlayList () area and the PlayListMark () area have the same configuration in each of the first to third formats and the recording extended format.

  In the ExtensionData () area, the second attribute data is stored as in the second format. ExtensionData () will be described later with reference to FIG.

  FIG. 6 shows the syntax of UIAppInfoPlayList ().

  PlayList_character_set is information specifying a character set of character string information related to PlayList.

  write_protect_flag is an erasure prohibition flag. Playback_protect_flag is a reproduction prohibition flag.

  is_played_flag is a flag indicating whether or not the play list has been reproduced, and is_edited_flag is a flag indicating whether or not the play list has been edited after the first creation.

  time_zone is information representing the time zone of the date and time when the playlist including UIAppInfoPlayList () is created and changed.

  record_time_and_date is information indicating the recording date and time of the playlist including the UIAppInfoPlayList (). PlayList_duration is information indicating the playback time of the playlist.

  In PlayList_duration, information indicating the playback time of this playlist is described.

  In maker_ID, a number identifying the manufacturer of the recording device that last updated the playlist is described. In maker_model_code, a number identifying the recording device that last updated the playlist is specified.

  channel_number is an area for storing the channel number of the recorded stream. The channel_name_length is information that specifies the length of a character string that is valid from the beginning of the character strings described in the channel_name. In channel_name, the channel name is stored.

  PlayList_name_length is information for designating the length of a valid character string from the beginning of the character strings described in PlayList_name. PlayList_name stores a playlist name.

  PlayList_detail_length is information that specifies the length of a character string that is valid from the beginning of the character strings described in PlayList_detail. PlayList_detail stores detailed information of a playlist.

  As described above, the UIAppInfoPlayList () of the recording extended format is the first extended information that is defined in the first format and not defined in the second format and the third format. Is stored.

  FIG. 7 shows the data structure of ExtensionData ().

  A plurality of data can be stored in one ExtensionData (). Each data is called ext_data (), and as shown in FIG. 8, ext_data () is identified by ext_data_entry () and stored at a specified address.

  length is a field indicating the number of bytes from immediately after this field to the end of ExtensionData ().

  data_block_start_address is a field that represents the start address of data_block () as a relative number of bytes from the first byte of ExtensionData (). The relative number of bytes is counted from 0. This data_block_start_address must satisfy the 32-bit alignment condition of “ext_data_start_address% 4 = 0”.

  The number_of_ext_data_entries field represents the number of entries of extension data (ext_data ()) stored in ExtensionData ().

  The field of ID1 represents the type of ext_data () that is extension data.

  The field of ID2 represents details of the extension data (ext_data ()) identified by ID1. Two or more ext_data_entry () with the same ID1 and ID2 must not exist in ExtensionData ().

  The ext_data_start_address field represents an address at which the extension data ext_data () represented by ext_data_entry () is started in the data_block () field. This value is the relative number of bytes from the first byte of ExtensionData () and is counted from 0.

  ext_data_start_address must satisfy the condition of “ext_data_start_address% 4 = 0” so that the start position of the extension data ext_data () is 32-bit aligned.

  The ext_data_length field represents the size of ext_data () measured in bytes.

  padding_word is an arbitrary value, and an arbitrary number is inserted. L1 is 0 or any positive integer.

  The data_block () is an area for storing one or more pieces of extension data ext_data (), that is, information including the second attribute data. Details of PlayListExtension (), which is extension data of the storage format for recording, stored in ext_data () will be described later with reference to FIG.

  With reference to FIG. 9, a definition example of ID1 for identifying ext_data () will be described.

  For example, if the source or input source of the recorded data is analog broadcasting or line-in input, or digital broadcasting, ID = 0x3000 and a playlist is newly created, so ext_data () Is also newly created. Even when the source and input source of the data to be recorded are in the first format, ID = 0x3000, and the part other than the extension in the playlist is diverted from the case in the first format. However, ext_data () is generated with reference to the UIAppInfoPlayList () data described with reference to FIG.

  In addition, when the import source or input source of the recorded data is the third format, ID = 0x1000, and ext_data () stores the contents described in the extended metadata of the third format Is done. If the source or input source of the recorded data is in the second format, ID = 0x2000, and if ext_data () exists in the source data, that data is used as is, and the source If ext_data () does not exist in the data, ext_data () is newly created.

  Next, PlayListExtension () stored as ext_data () in DataBlock () in ExtensionData () will be described with reference to FIG.

  Type stores a character string representing this data structure. Here, “PLEX” is stored as a 4-character string according to ISO646.

  PLMarkExtStartAddress is information representing the start byte address of PLMarkExt (), and describes a relative address with the first byte of PlayListExtension () set to 0.

  PrivateDataStartAddress is information indicating the start byte address of PrivateData (), and describes a relative address where the first byte of PlayListExtension () is 0.

  PLExt () includes AdditonalData (), which is an area for describing the second attribute data. PLExt () will be described later with reference to FIG.

  PLMarkExt () will be described later with reference to FIG.

  PrivateData () is an area where information necessary for a special application can be stored.

  FIG. 11 shows the data structure of PLExt ().

  In Length, a value representing the length from immediately after this Length field to the last byte of PLExt () is stored in bytes.

  MakerID is a field for describing information indicating the manufacturer of the device that created or changed this PLExt ().

  MakerModelCode is a field for describing information representing the model number of the device that created or changed this PLExt ().

  RefToMenuThumbnailIndex is a field that represents the index number of a thumbnail image that represents this playlist. The index number is defined in menu.tidx.

  TimeZone () is information representing the time zone of the date and time when the playlist including this PLExt () was created and changed.

  RecordedTimeAndDate is information representing the date and time when the playlist including this PLExt () was recorded.

  The PLCharacterSet field stores information representing the character set of the character string stored in the PLName, OriginalContentName, BroadcasterName, ChannelName, PLDetail1, and PLDetail2 fields.

  PLNameLength is information that specifies the length of a valid character string from the beginning of the character strings described in PLName. PLName stores information indicating the name of this playlist.

  Then, AdditonalData () and below are areas for describing the second attribute data.

  Length2 represents the number of bytes that follow as AdditonalData () immediately after Length2.

  OriginalContentNameLangth is information that specifies the length of a valid character string from the beginning of the character strings described in OriginalContentName. OriginalContentName stores the name of the recording medium on which this PlayList is recorded, for example, the disc name.

  In PLAttribute, a value representing the type of PlayList is stored. In PLAttribute, for example, as shown in FIG. 12, when the type of PlayList is a RealPlayList sharing the stream portion of the referenced Clip, 1 indicates the stream portion of the referenced Clip. In the case of a VirtualPlayList that is not shared, if it is unknown which 2 is 0, 0 is stored.

  In PLPlaybackProtectFlag, a value indicating the reproduction restriction of this playlist is stored. In the PLPlaybackProtectFlag, for example, as shown in FIG. 13, when this playlist can be played back without inputting a PIN (Personal Identity Number), 0 is played. In the case of addition, 1 is stored respectively.

  PLWriteProtectFlag stores a value indicating whether this playlist can be changed. In PLWriteProtectFlag, for example, as shown in FIG. 14, when the playlist can be deleted or changed, 0 is 1 when the playlist should not be deleted or changed except for PLWriteProtectFlag. Are stored respectively.

  PlayedFlag stores a value indicating whether or not this play list has been played. For example, as shown in FIG. 15, 0 is stored in the PLWriteProtectFlag if the playlist has not been reproduced yet, and 1 is stored if the playlist has been reproduced. The

  The EditedFlag stores information indicating whether or not the play list may be edited or changed after the playlist is first created. In EditedFlag, as shown in FIG. 16, 0 is stored when this playlist has not been edited yet, and 1 is stored when this playlist has already been edited.

  In the PLDuration, information indicating the playback time of the playlist is described in 4-bit Binary Coded Decimal (BCD) notation. For example, if the playback time of this playlist is 1 hour 45 minutes 30 seconds, 0x014530 is described in PLDuration.

  In Genre, information indicating the genre of the playlist is described.

  In RecMode, information indicating the recording mode of the playlist is described.

  BroadcasterNameLength is information that specifies the length of a valid character string from the beginning of the character string described in the BroadcasterName field. BroadcasterName is information representing a broadcast station name.

  ChannelNumber is information representing a channel number.

  ChannelNameLength is information that specifies the length of a valid character string from the beginning of the character string described in ChannelName. ChannelName is information representing a channel name.

  PLDetail1Length is information that specifies the length of a valid character string from the beginning of the character strings described in PlayListDetail1. PLDetail1 is a first area for storing a character string representing the detailed information of this playlist.

  PLDetail2Length is information that specifies the length of a valid character string from the beginning of the character strings described in PlayListDetail2. PLDetail2 is a second area for storing a character string representing the detailed information of the playlist.

  In this way, PLExt () has AdditonalData () that is an area for describing the second attribute data. The second attribute data described in PLExt () includes partly the same information as UIAppInfoPlayList () described with reference to FIG.

  The UIAppInfoPlayList () described with reference to FIG. 6 basically has the same data structure as the first format, and the structure of ExtensionData () having a DataBlock describing PLExt () is basically , Having the same data structure as the second format in the case of having ExtensionData (). Therefore, the extended recording format is compatible with both the first format and the second format, so that data conversion can be performed without executing complicated processing. It is configured to include both UIAppInfoPlayList () and PLExt () data such that the contents of the parts are superimposed.

  That is, when format conversion is performed from the first format to the recording extended format, information is described in ExtensionData () based on the data described in UIAppInfoPlayList () of the first format, and from the second format. When format conversion is performed on the recording extension format, information is described in UIAppInfoPlayList () based on the data described in ExtensionData () of the second format.

  Next, the data structure of PLMarkExt () will be described with reference to FIG.

  Length is information representing the number of bytes that follow as PLMarkExt () immediately after Length.

  NumberOfPlayListMarks is information representing the number of Marks. Corresponding to the arrangement in PlayListMark (), Mark extension information can be assigned to each Mark. Therefore, even if there is no extension information, the Mark extension information loop exists.

  MakerID is a field that represents the manufacturer of the device that created or changed this Mark.

  MakerModelCode is a field that represents the model number of the device that created or changed this Mark.

  MarkWriteProtectFlag is information indicating whether the scene from this Mark to the end of the next Mark or PlayList can be changed. For example, as shown in FIG. 18, the scenes from this Mark to the end of the next Mark or PlayList are displayed. If deletion or change is possible, 0 is described, and if deletion or change of a scene from this Mark to the end of the next Mark or PlayList should not be performed, 1 is described.

  RefToMarkThumbnailIndex is a field indicating the index number of a thumbnail image representing this Mark. The index number is defined in mark.tidx. If there is no thumbnail image, set it to 0xFFFF.

  TimeZone () is information representing the time zone of the recording date and time of the scene indicated by this mark, and the definition method is the same as in the first format.

  RecordedTimeAndDate is information representing the recording date and time of the scene indicated by this mark, and the definition method is the same as in the first format.

  MarkCharacterSet is information representing a character set used in MarkName, and the definition method is the same as in the third format.

  MarkNameLength is information that specifies the length of a valid character string among the character strings described in the MarkName field. MarkName is information representing the name of mark.

  Next, the data structure of the Clip Information file will be described with reference to FIG. The data structure of the Clip Information file basically has the same configuration as that of the first format except that ExtensionData () is arranged instead of MakersPrivateData () in the first format.

  TypeIndicator indicates the type of file.

  VersionNumber indicates four character characters indicating the version number of the zzzzz.clpi file.

  SequenceInfoStartaddress indicates the start address of SequenceInfo () with the relative number of bytes from the start byte of the zzzzz.clpi file as a unit. The relative number of bytes is counted from zero.

  ProgramInfoStartAddress indicates the start address of ProgramInfo () with the relative number of bytes from the start byte of the zzzzz.clpi file as a unit. The relative number of bytes is counted from zero.

  CPIStartAddress indicates the start address of CPI () with the relative number of bytes from the start byte of the zzzzz.clpi file as a unit. The relative number of bytes is counted from zero.

  ClipMarkStartAddress indicates the start address of ClipMark () with the relative number of bytes from the start byte of the zzzzz.clpi file as a unit. The relative number of bytes is counted from zero.

  ExtensionDataStartAddress indicates the start address of ExtensionData () in units of the relative number of bytes from the start byte of the zzzzz.clpi file. The relative number of bytes is counted from zero.

  ClipInfo () describes the type of AV stream corresponding to the Clip Information file, and application_type describes information indicating the type of application.

  SequenceInfo () defines information on the ATC-sequence and STC-sequence in the Clip AV stream.

  ProgramInfo () stores information on the change point of the content program content in the AV stream file.

  CPI () defines information for associating time information in the AV stream with an address in the file.

  ClipMark () stores mark information that makes it possible to provide a program start point, a scene change point, and the like in a clip.

  ExtensionData () describes ClipExtension data having third attribute data similar to the above-described third format data.

  With reference to FIG. 20, ClipExtension data which is information stored in ExtensionData () of zzzzz.clpi will be described.

  In the Type field, a character string “CLEX” indicating the type of the data block is described.

  The field of ClipInfoExt () is an area for storing third attribute data related to Clip.

  The other fields are not related to the present invention, and the detailed description thereof is omitted here.

  FIG. 21 shows the data structure of ClipInfoExt ().

  In Length, a value representing the length from immediately after this Length field to the last byte of ClipInfoExt () is stored in bytes.

  MakerID is a field that represents the manufacturer of the device that created or changed this ClipInfoExt ().

  MakerModelCode is a field that represents the model number of the device that created or changed this ClipInfoExt ().

  As described above, ClipInfoExt () is information that does not exist in the first format and the second format but exists in the third format.

  By having this ClipInfoExt (), the device that reproduces this content can create or change this ClipInfoExt (), that is, the manufacturer or model number of the device that created or last edited the content for each playlist. Can be detected. Thus, for example, a device that reproduces this content has a model in which the content to be reproduced is the same or compatible with a device manufactured by a manufacturer that is the same or related to itself or a reproduction device. Whether the content was created or last edited by the device can be recognized, for example, whether a special application can be used during content playback, or when a playback error occurs It is possible to easily detect whether or not there is a possibility that editing or the like that is not pertinent to the playback apparatus is performed.

  The recording extended format having the data structure described above can be easily format-converted with respect to any of the first format, the second format, and the third format. Is. That is, as shown in FIG. 22, the video processing device 11 includes a first format, a second format (including those that can be edited and those that cannot be edited), a third format, and In response to the input of a broadcast signal or the like, the format is converted to the extended format for recording having the data structure described above, and is recorded in the local storage 36. The data in the extended format for recording recorded in the local storage 36 is It is possible to convert the format to one of the first format, the second format, or the third format, and record it on a recording medium such as an optical disc 12 or supply it to an external device. Become.

  Note that when the same file name is already used in the local storage 36 when the source data is captured, the file name needs to be changed. At this time, for example, as shown in FIG. It is also possible to record in the local storage 36 by assigning a distinguished file name so that the format can be understood without looking at the data in the file.

  Next, with reference to FIG. 24, a process of converting data such as the first format, the second format, the third format, or the broadcast signal into the extended format for recording will be described.

  As described above, when these formats are roughly classified, the system for broadcasting recording is the first format such as broadcast signals and line-in, and the system for camcorders and playback-only discs is the second format and This is the third format. In addition, the second format includes those that can be edited and those that cannot be edited (that is, editing is not assumed).

  The video processing apparatus 11 refers to the value of ID1 described with reference to FIG. 9 when fetching these data into the conversion processing unit for recording in the local storage 36, and the data to be recorded when ID1 = 0x3000. The format (hereinafter also referred to as “source”) is determined to be a system for broadcast recording, and when there is no playlist, the playlist and clip information referred to by the playlist are generated, and each of the attributes described above is generated. When data is generated and the playlist exists, the directory structure between the playlist and the clip information referenced by the playlist is used as it is, and only the ext_data () part is generated based on the UIAppInfoPlayList () of the source. To do.

  On the other hand, the video processing apparatus 11 refers to the value of ID1 described with reference to FIG. 9 when ID1 = 0x2000 or 0x1000 when taking these data into the conversion processing unit for recording in the local storage 36. At this time, it is determined that the source format is a system close to a camcorder or a playback-only system, and the playlist structure of the system in the second format is converted to have the same structure as the first format, and UIAppInfoPlayList ( ) Is generated. If ID1 = 0x2000, it is determined that the data is in the second format, and it is determined whether ext_data () exists in the source. If it exists, it is used as it is. , Ext_data () is newly generated. If ID1 = 0x1000, it is determined that the data is in the third format, and ext_data () is generated based on the extended metadata included in the source.

  When recording data in the third format that cannot be edited, it may be difficult to capture the data. However, if the structure is simple, the data structure can be analyzed and imported in units of playlists. .

  Further, the directory structure is different between the first format, which is a broadcast recording system, and the other second format and third format.

  When the first format is converted to the extended format for recording, the directory structure is the same, so if the file names are not duplicated, they can be imported basically without changing the data structure in the file. On the other hand, when converting the second format or the third format to the extended format for recording, it is necessary to convert the data structure in the file.

  As an example, a directory structure conversion process in the case of importing data in the third format will be described with reference to FIG. The import of data in the third format can be realized by applying the following rules.

  First, the first rule is that content data of each format is taken into the local directory 36 in units of playlists. That is, the playlist in the second format or the third format is converted into a playlist in the format of the extended format for recording and placed under the PLAYLIST directory under the BDAV directory. At that time, the list of playlists may be held with reference to the index table of the import source. Movie objects, navigation commands, and interactive graphics specific to the second or third format are not captured. In addition, the attribute information specific to the playlist in the second format or the third format, such as special playback restriction information, is discarded, or the private area (PlayListExtensionData () of the playlist extension information as necessary). It is described in PrivateData ()). Further, the attribute information for the entire disc, such as the disc name, may be moved to the extended area of each captured playlist.

  The second rule is that the clip information file is placed under the CLIPINF directory under the BDAV directory without converting the format of the import source. At the time of capturing, stream conversion is basically not performed, but if the source data is in the first format or the second format, ClipExtension data having the third attribute data is added.

  The third rule is that the stream file (extension m2ts) is also placed under the STREAM directory under the BDAV directory without converting the source format. When capturing, stream conversion is basically not performed.

  The fourth rule is to move the storage location of thumbnail image data in the third format to a thumbnail file defined by the directory structure of the extended format for recording.

  As schematically shown in FIG. 26, the stored extended information is different in each of the first format, the second format, or the third format, which is the source data handled by the video processing device 11. Also, a broadcast signal or the like that does not have extended information itself is converted into a recording extended format and recorded in the local storage 36. The data structure of the extended format for recording recorded in the local storage 36 includes the first attribute data to the third attribute in which the extended data included in the extended format for recording is extended information included in the data structure of the format of each source data. It is defined to include all of the data, that is, 'OR'. As described above, since the data structure of the extended format for recording has a recording area for any extended information, the data recorded as the extended format for recording is changed to the first format, the second format, or the first format. When outputting as one of the three formats, the format conversion at the time of output is facilitated even though the extension information to be stored differs depending on the format of the output data.

  However, after the source data is converted into the extended format for recording, it is converted into any one of the first format, the second format, or the third format and output, so that it exists in the source data. There is a possibility that the extended information recording area is not included in the output data file. Therefore, valid fields in the data file of the extended format for recording differ depending on the import source. Therefore, it is useful to know what the capture source was to identify valid fields.

  Next, FIG. 27 is a functional block diagram for explaining the functions of the conversion processing unit 35 that executes the format conversion process.

  The conversion processing unit 53 includes a recording data acquisition unit 101, a format detection unit 102, a recording extended format conversion unit 103, a recording control unit 104, a data reading unit 105, a pre-conversion format detection unit 106, a notification control unit 107, and a format conversion. The processing unit 108 and the output control unit 109 are configured.

  The recording extended format conversion unit 103 includes an attribute information generation unit 121, a file conversion processing unit 122, and a directory management unit 123.

  The recording data acquisition unit 101 receives the broadcast signal received by the broadcast reception control unit 33, the data read from the optical disk 12 by the disk drive 37, the data supplied from the network interface 38, or the re-encoding processing unit 34. Source data such as re-encoded encoded data is acquired and supplied to the format detection unit 102.

  The format detection unit 102 detects which format or data format is based on the data structure of the supplied data, and sends the source data to the recording extended format conversion unit 103 together with the detection result. Supply.

  The recording extended format conversion unit 103 converts the supplied source data into a recording extended format. Specifically, the attribute information generation unit 121 of the recording extended format conversion unit 103 is not described in the source data, and the first attribute data, the second attribute data that the recording extended format should have, or An area for describing the third attribute data is generated in the playlist or clip information, and various information described in the source data, or metadata or extended metadata attached to the source data Based on the above, information on a descriptionable portion of various attribute data is described.

  The file conversion processing unit 122 converts the file structure of the playlist in the second format and the third format into the file structure of the playlist in the extended format for recording.

  The directory management unit 123 controls the change of the directory structure accompanying the format conversion as described with reference to FIG.

  The recording control unit 104 controls the conversion of the content data converted into the recording extended format by the recording extended format conversion unit 103 into the local storage 36.

  The data reading unit 105 basically reads the data in the extended format for recording recorded in the local storage 36 in units of playlists, supplies the data to the format conversion processing unit 108, and also determines the format type before conversion. Is detected, the ext_data () of the read data is extracted and supplied to the pre-conversion format detection unit 106.

  The pre-conversion format detection unit 106 detects the type of the format before recording of the recording extended format data read from the local storage 36 based on the ID1 value of ext_data () supplied from the data reading unit 105. Then, the detection result is supplied to the notification control unit 107.

  The notification control unit 107 generates a message, an icon, or the like for notifying the user of the format type information before recording supplied from the pre-conversion format detection unit 106, and supplies the message to the display control unit 43 for display.

  The format conversion processing unit 108 converts the data in the extended format for recording supplied from the data reading unit 105 into a format specified by the user or matched with the output format, and supplies it to the output control unit 109.

  The output control unit 109 outputs the format-converted data supplied from the format conversion processing unit 108 to the disk drive 37 to control recording on the optical disk 12 or an external device via the network interface 38 To control the supply.

  Next, with reference to the flowchart of FIG. 28, the data recording process performed in the conversion process part 35 demonstrated using FIG. 27 is demonstrated.

  In step S <b> 11, the recording data acquisition unit 101 receives supply of data recorded in the local storage 36 and supplies the data to the format detection unit 102.

  In step S12, the format detection unit 102 determines whether the supplied source data is data in the first format.

  If it is determined in step S12 that the data is in the first format, in step S13, data recording processing in the first format, which will be described later with reference to FIG. 29, is executed, and the processing proceeds to step S20.

  If it is determined in step S12 that the data is not in the first format, in step S14, the format detection unit 102 determines whether the supplied source data is data in the second format. .

  If it is determined in step S14 that the data is in the second format, in step S15, data recording processing for the second format described later with reference to FIG. 30 is executed, and the process proceeds to step S20.

  If it is determined in step S14 that the data is not in the second format, in step S16, the format detection unit 102 determines whether the supplied source data is data in the third format. .

  If it is determined in step S16 that the data is in the third format, in step S17, a third format data recording process described later with reference to FIG. 31 is executed, and the process proceeds to step S20.

  If it is determined in step S16 that the data is not in the third format, in step S18, the format detection unit 102 determines whether or not the supplied source data is received broadcast data.

  If it is determined in step S18 that the data is broadcast data, a broadcast data recording process, which will be described later with reference to FIG. 32, is executed in step S19, and the process proceeds to step S20.

  After the processing of step S13, step S15, step S17, and step S19 is completed, in step S20, the recording control unit 104 uses the data, which has been changed as necessary, as local extended format data. Recording is performed in a predetermined recording area of the storage 36, and the process is terminated.

  If it is determined in step S18 that the data is broadcast data, in step S20, the conversion processing unit 35 outputs an error message indicating that the designated data cannot be recorded, and the process ends.

  By such processing, it is detected which format is the format of the data for which recording is instructed, format conversion is executed, and the data is recorded in the local storage.

  Next, the data recording process of the first format executed in step S13 of FIG. 28 will be described with reference to the flowchart of FIG.

  In step S51, the recording extended format conversion unit 103 acquires a playlist file based on TableOfPlayLists (corresponding to IndexTable in the first format).

  In step S52, the attribute information generation unit 121 of the recording extended format conversion unit 103 extracts information described in PlayListExtension from the description of UIAppInfoPlayList of the source data.

  In step S53, the attribute information generation unit 121 replaces the data of the MakersPrivateData () part with ExtensionData (). Thus, since an area for describing the second attribute data is secured, the attribute information generation unit 121 uses the information extracted from the UIAppInfoPlayList of the source data, among the second attribute data of ExtensionData (). Describe the information of the part that can be described.

  In step S54, the directory management unit 123 of the recording extended format conversion unit 103 determines whether the file name of the read playlist file is a file name that already exists in the recording area for recording the data after format conversion. Judging.

  If it is determined in step S54 that the file name of the read playlist file is an existing file name, the directory management unit 123 changes the file name of the playlist file in step S55.

  If it is determined in step S54 that the file name of the read playlist file is not an existing file name, or after the process of step S55 is completed, the attribute information generation unit 121 selects the ClipInformation file in step S56. And ClipInfoExt (), which is an area for describing the third attribute information, is added.

  In step S57, the directory management unit 123 determines whether the file name of the read ClipInformation file is a file name that already exists in the recording area for recording the data after format conversion. If it is determined in step S57 that the file name of the read ClipInformation file is not an existing file name, the process returns to step S13 in FIG. 28 and proceeds to step S20.

  If it is determined in step S57 that the file name of the read ClipInformation file is an existing file name, the directory management unit 123 changes the file name of the ClipInformation file in step S58.

  In step S59, the file conversion processing unit 122 of the recording extended format conversion unit 103 changes the clip reference field in the playlist file based on the change of the file name of the ClipInformation file, and the processing is performed in step S13 of FIG. Returning to step S20, the process proceeds to step S20.

  By such processing, the content data in the first format can be converted into the extended format for recording.

  Next, the second format data recording process executed in step S15 of FIG. 28 will be described with reference to the flowchart of FIG.

  In step S81, the recording extended format conversion unit 103 determines the order in which the playlist file is acquired based on the IndexTable.

  In step S82, the recording extended format conversion unit 103 acquires a playlist file based on the determined order.

  In step S83, the attribute information generation unit 121 and the file conversion processing unit 122 of the recording extended format conversion unit 103 convert portions other than the extension of the playlist file. That is, the file conversion processing unit 122 converts the playlist file so that UIAppInfoPlayList (), which is an area for describing the first attribute data, is configured in the playlist, and the attribute information generation unit 121 When PlayListExtension exists in the source data, information that can be described in UIAppInfoPlayList () is described using the description of the data in that portion.

  In step S84, the attribute information generation unit 121 determines whether there is a PlayListExtension that is extension information in the playlist file.

  If it is determined in step S84 that PlayListExtension, which is extension information in the playlist file, does not exist, in step S85, the attribute information generation unit 121 and the file conversion processing unit 122 set an area for describing the second attribute data. In order to prepare, ExtensionData () is newly added to the playlist file, and information that can be described in ExtensionData () is described from information included in the source file.

  If it is determined in step S84 that PlayListExtension, which is extension information in the playlist file, exists, or after the process of step S85 is completed, in steps S86 to S91, the basic steps are the same as steps S54 to S59 of FIG. A similar process is executed.

  That is, when it is determined that the file name of the read playlist file is an existing file name, the file name of the playlist file is changed, the ClipInformation file is read, and the third attribute data is described. An area ClipInfoExt () is added. If it is determined that the file name of the read ClipInformation file is an existing file name, the file name of the ClipInformation file is changed, and the clip in the playlist file is changed based on the change of the file name of the ClipInformation file. The reference field is changed.

  If it is determined in step S89 that the file name of the read ClipInformation file is not an existing file name, or after the process of step S91 is completed, the process returns to step S15 of FIG. 28 and returns to step S20. move on.

  By such processing, the content data in the second format can be converted into the extended format for recording.

  Next, with reference to the flowchart of FIG. 31, the recording process of the data of the 3rd format performed in step S17 of FIG. 28 is demonstrated.

  In step S <b> 121, the recording extended format conversion unit 103 determines the order in which playlist files are acquired based on data that associates titles with playlists.

  In step S122, the recording extended format conversion unit 103 acquires a playlist file.

  In step S123, the attribute information generation unit 121 and the file conversion processing unit 122 of the recording extended format conversion unit 103 read the extended metadata in which information on the entire content is described, and based on this data, PLExt of each playlist is read. Construct AdditionalData () described in ().

  In step S124, the attribute information generation unit 121 and the file conversion processing unit 122 convert a portion other than the extension of the playlist file. That is, the file conversion processing unit 122 converts the playlist file so that UIAppInfoPlayList () that is an area for describing the first attribute data is configured in the playlist, and the attribute information generation unit 121 Information that can be described in UIAppInfoPlayList () is described using the description of the source data.

  In step S125, the file conversion processing unit 122 includes the AdditionalData () constructed in step S123 as the second attribute data, that is, the ExtensionData () that is an area for describing the second attribute data. Add new to the list.

  In steps S126 to S130, basically the same processing as in steps S54 to S58 of FIG. 29 is executed.

  That is, when it is determined that the file name of the read playlist file is an existing file name, the file name of the playlist file is changed, the ClipInformation file is read, and the third attribute data is described. An area ClipInfoExt () is added. When it is determined that the file name of the read ClipInformation file is an existing file name, the file name of the ClipInformation file is changed.

  When it is determined in step S129 that the file name of the read ClipInformation file is not an existing file name, or after the process of step S130 is completed, the directory management unit 123 selects the third format in step S131. The thumbnail file data in and store it in the thumbnail file folder

  In step S132, the directory management unit 123 adds and changes the thumbnail reference index as necessary.

  In step S133, the file conversion processing unit 122 changes the clip reference field or the thumbnail reference index in the playlist file based on the change of the file name of the ClipInformation file or the change or addition of the thumbnail reference index. Returning to step S17 of FIG. 28, the process proceeds to step S20.

  By such processing, the content data in the second format can be converted into the extended format for recording.

  Next, the broadcast data recording process executed in step S19 in FIG. 28 will be described with reference to the flowchart in FIG.

  In step S161, the attribute information generation unit 121 and the file conversion processing unit 122 of the recording extended format conversion unit 103, for example, analyze the stream data and generate a portion other than the extension of the playlist file. At this time, since the file conversion processing unit 122 configures UIAppInfoPlayList (), which is an area for describing the first attribute data, in the playlist, the attribute information generation unit 121 uses, for example, the description of the source data. Information that can be described in UIAppInfoPlayList () is described.

  In step S162, the attribute information generation unit 121 and the file conversion processing unit 122 acquire metadata associated with the stream data to be format-converted.

  In step S163, the attribute information generation unit 121 and the file conversion processing unit 122 newly generate ExtensionData () that is an area for describing the second attribute data, and in ExtensionData () based on the metadata. Enter information that can be written.

  In step S164, the directory management unit 123 sets the file name of the generated playlist file so as not to overlap with the already recorded playlist.

  In step S165, the attribute information generation unit 121 and the file conversion processing unit 122 generate a ClipInformation file including ClipInfoExt () that is an area for describing the second attribute data.

  In step S166, the directory management unit 123 sets the file name of the generated ClipInfomation file so that it does not overlap with the already recorded playlist, and the process returns to step S19 in FIG. 28 and returns to step S20. move on.

  Through such processing, broadcast data having no playlist or clip information can be converted into an extended format for recording.

  Next, with reference to the flowchart of FIG. 33, the data reading process from the local storage 36 performed in the conversion process part 35 demonstrated using FIG. 27 is demonstrated.

  In step S191, the data reading unit 105 receives the designation of the data to be read, and basically designates the designated data of the recording extended format data recorded in the local storage 36 in units of playlists. The data is read and supplied to the format conversion processing unit 108.

  In step S192, the data reading unit 105 determines whether it is requested to notify the user of what the original data format was.

  If it is determined in step S192 that it is requested to notify the user of what the original data format was, in step S193, the data reading unit 105 sends the read data ext_data ( ) Is extracted and supplied. The pre-conversion format detection unit 106 detects the type of the format before recording of the recording extended format data read from the local storage 36 based on the ID1 value of ext_data () supplied from the data reading unit 105. Then, the detection result is supplied to the notification control unit 107. The notification control unit 107 generates a message, an icon, and the like for notifying the user of the format type information before recording supplied from the pre-conversion format detection unit 106, and supplies the message to the display control unit 43 for display. Notify the user what the original data format was.

  In step S194, the format conversion processing unit 108 receives designation as to which format is to be read.

  In step S195, the format conversion processing unit 108 determines whether or not the designated output format is the first format.

  If it is determined in step S195 that the format is the first format, in step S196, data write processing as a first format, which will be described later with reference to FIG. 34, is executed, and the processing ends.

  If it is determined in step S195 that the format is not the first format, in step S197, the format conversion processing unit 108 determines whether the designated output format is the second format.

  If it is determined in step S197 that the format is the second format, in step S198, data writing processing as a second format described later with reference to FIG. 35 is executed, and the processing is terminated.

  If it is determined in step S197 that the format is not the second format, in step S199, the format conversion processing unit 108 determines whether the designated output format is the third format. If it is determined in step S199 that the format is not the third format, the process returns to step S194, and the subsequent processes are repeated.

  If it is determined in step S199 that the format is the third format, in step S200, data write processing as a third format, which will be described later with reference to FIG. 36, is executed, and the processing ends.

  By such processing, data in the extended format for recording is read from the local storage 36, and the format is converted.

  Next, the data writing process as the first format executed in step S196 of FIG. 33 will be described with reference to the flowchart of FIG. Here, description will be made assuming that the disk drive 37 is controlled to write the data after format conversion to the optical disk 12.

  In step S <b> 231, the data reading unit 105 determines the arrangement order of the playlist to be written, reads it from the local storage 36, and supplies it to the format conversion processing unit 108.

  In step S232, the format conversion processing unit 108 converts the clip information file into the first format.

  In step S233, the format conversion processing unit 108 sets a path so that the converted clip information file is stored in a predetermined folder based on the directory structure of the first format, and supplies it to the output control unit 109. . The output control unit 109 supplies the clip information file whose format has been converted to the disk drive 37 and records the clip information file in a predetermined folder on the optical disk 12 based on the path setting by the format conversion processing unit 108.

  In step S234, the format conversion processing unit 108 sets a path so that the clip stream file is stored in a predetermined folder based on the directory structure of the first format, and supplies the path to the output control unit 109. The output control unit 109 supplies the clip stream file to the disk drive 37 and records it in a predetermined folder on the optical disk 12.

  In step S235, the format conversion processing unit 108 converts the playlist file into the first format.

  In step S236, the format conversion processing unit 108 sets a path so as to store the converted playlist file in a predetermined folder based on the directory structure of the first format, and supplies the path to the output control unit 109. The output control unit 109 supplies the playlist file to the disk drive 37 and records it in a predetermined folder on the optical disk 12, and the process returns to step S196 in FIG. 33 to end the process.

  By such processing, the content data recorded in the local storage 36 in the recording extended format can be output as the first format.

  Next, the data writing process as the second format executed in step S198 in FIG. 33 will be described with reference to the flowchart in FIG. Here, the description will be made on the assumption that the disk drive 37 is controlled to write the format-converted data onto the optical disk 12.

  In step S <b> 261, the data reading unit 105 determines the arrangement order of the playlist to be written, reads it from the local storage 36, and supplies it to the format conversion processing unit 108.

  In step S262, the format conversion processing unit 108 converts the clip information file into the second format.

  In step S263, the format conversion processing unit 108 sets a path so that the converted clip information file is stored in a predetermined folder based on the directory structure of the second format, and supplies it to the output control unit 109. . The output control unit 109 supplies the clip information file whose format has been converted to the disk drive 37 and records the clip information file in a predetermined folder on the optical disk 12 based on the path setting by the format conversion processing unit 108.

  In step S264, the format conversion processing unit 108 sets a path so that the clip stream file is stored in a predetermined folder based on the directory structure of the second format, and supplies the path to the output control unit 109. The output control unit 109 supplies the clip stream file to the disk drive 37 and records it in a predetermined folder on the optical disk 12.

  In step S265, the format conversion processing unit 108 converts the playlist file into the second format.

  In step S266, the format conversion processing unit 108 sets a path so as to store the converted playlist file in a predetermined folder based on the directory structure of the second format, and supplies the path to the output control unit 109. The output control unit 109 supplies the playlist file to the disc drive 37 and records it in a predetermined folder on the optical disc 12, and the process returns to step S198 in FIG. 33, and the process is terminated.

  By such processing, the content data recorded in the local storage 36 in the recording extended format can be output as the second format.

  Next, the data writing process as the third format executed in step S200 of FIG. 33 will be described with reference to the flowchart of FIG.

  In step S291, the data reading unit 105 determines the arrangement order of the playlist to be written, reads the playlist from the local storage 36, and supplies it to the format conversion processing unit 108.

  In step S292, the format conversion processing unit 108 sets a path so as to be stored in a predetermined folder based on the directory structure of the third format, and supplies the path to the output control unit 109. The output control unit 109 supplies the clip information file and the clip stream file to the disk drive 37 and records them in a predetermined folder on the disk 12 based on the directory structure of the third format.

  In step S293, the format conversion processing unit 108 converts the playlist file into the third format.

  In step S294, the format conversion processing unit 108 sets a path so as to store the converted playlist file in a predetermined folder based on the directory structure of the third format, and supplies the path to the output control unit 109. The output control unit 109 supplies the playlist file to the disc drive 37 and records it in a predetermined folder on the optical disc 12.

  In step S295, the format conversion processing unit 108 reads based on the thumbnail reference index referred to by the playlist of the playlist file after conversion.

  In step S296, the format conversion processing unit 108 sets a path so that thumbnail image data referred to by the playlist of the converted playlist file is stored in a predetermined folder based on the directory structure of the third format. To the output control unit 109. The output control unit 109 supplies the thumbnail image data referred to by the playlist of the converted playlist file to the disk drive 37, records the thumbnail image data in the folder for the thumbnail file, and the process returns to step S200 in FIG. Is terminated.

  By such processing, the content data recorded in the local storage 36 in the recording extended format can be output as the third format.

  As described above, by applying the present invention, the format of the content data recorded in the local storage 36 can be easily changed to any of the first format, the second format, and the third format. Since the recording extended format has a possible configuration, management of content data in the local storage 36 is facilitated.

  The configuration of the recording extended format includes all the extended information included in any of the first format, the second format, and the third format. Here, the recording extended format is any data of the first attribute data included in the first format, the second attribute data included in the second format, and the third attribute data included in the third format. Also has an area that can be described.

  In addition, although the case where it handles three formats and the broadcast data etc. which do not have a playlist and clip information was demonstrated here, for example, when only two formats are handled, the structure of the extended format for recording is It depends on the configuration of the two formats. For example, when only the first format and the second format are handled, the configuration of the recording extension format includes all the extension information of either the first format or the second format, and the recording extension The format has an area that can describe both the first attribute data of the first format and the second attribute data of the second format.

  Furthermore, it goes without saying that the present invention can be similarly applied to an apparatus that can handle three or more types of formats.

  In addition, when format conversion is performed from any one of the first format, the second format, and the third format to the extended format for recording, each source data or data accompanying the source data Based on the above, it is preferable to describe the data of each extended information part as much as possible.

  The series of processes described above can also be executed by software. The software is a computer in which the program constituting the software is incorporated in dedicated hardware, or various functions can be executed by installing various programs, for example, a general-purpose personal computer For example, it is installed from a recording medium.

  The series of processes described above can be executed by hardware or can be executed by software. In this case, the processing described above is executed by a personal computer 200 as shown in FIG.

  In FIG. 37, a CPU (Central Processing Unit) 201 performs various processes according to a program stored in a ROM (Read Only Memory) 202 or a program loaded from a storage unit 208 to a RAM (Random Access Memory) 203. Execute. The RAM 203 also appropriately stores data necessary for the CPU 201 to execute various processes.

  The CPU 201, ROM 202, and RAM 203 are connected to each other via an internal bus 204. An input / output interface 205 is also connected to the internal bus 204.

  The input / output interface 205 includes an input unit 206 such as a keyboard and a mouse, a display such as a CRT and LCD, an output unit 207 such as a speaker, a storage unit 208 including a hard disk, a modem, a terminal adapter, etc. A communication unit 209 is connected. The communication unit 209 performs communication processing via various networks including a telephone line and CATV. The communication unit 209 may include an antenna and the like and can receive a broadcast signal.

  A drive 210 is connected to the input / output interface 205 as necessary, and a removable medium 211 made of a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is appropriately attached, and a computer program read from them is loaded. Installed in the storage unit 208 as necessary.

  Furthermore, when the content data (program composed of a navigation program, PlayList, and Clip) is recorded on the removable medium 211, the program read from the removable medium 211 is stored in the storage unit 208. The format can be converted or reproduced by the processing of the CPU 201.

  The processing executed by the conversion processing unit 35 in FIG. The decoding or encoding process executed by the re-encoding processing unit 34 or the AV decoder unit 42 of FIG. 1 may be executed by the CPU 201 (so-called software codec), or the re-encoding processing unit 34 of FIG. A codec processing unit having a function corresponding to the encoding processing unit 34 or the AV decoder unit 42 may be newly provided.

  When the above-described series of processing is executed by software, a program constituting the software is installed from a network or a program storage medium.

  As shown in FIG. 37, this program storage medium is configured only by a package medium including a removable medium 211 on which a program is recorded, which is distributed to provide a program to the user, separately from the computer. Rather, it is provided with a ROM 202 storing a program and a hard disk including a storage unit 208, which is provided to the user in a state of being incorporated in the apparatus main body in advance.

  Further, in the present specification, the step of describing the program recorded on the recording medium is not limited to the processing performed in chronological order according to the described order, but may be performed in parallel or It also includes processes that are executed individually.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

It is a block diagram which shows the structure of a video processing apparatus. It is a figure for demonstrating the application format of the data handled in a video processing apparatus. It is a figure for demonstrating a format classification. It is a figure which shows the example of a directory structure. It is a figure which shows the syntax of PlayList. It is a figure which shows the syntax of UIAppInfoPlayList (). It is a figure which shows the syntax of ExtensionData (). It is a figure for demonstrating the address setting of data_block. It is a figure for demonstrating ID1 of ext_data (). It is a figure which shows the syntax of PlayListExtension (). It is a figure which shows the syntax of PLExt (). It is a figure for demonstrating the value which PLAttribute can take. It is a figure for demonstrating the value which PLPlaybackProtectFlag can take. It is a figure for demonstrating the value which PLWriteProtectFlag can take. It is a figure for demonstrating the value which PlayedFlag can take. It is a figure for demonstrating the value which EditedFlag can take. It is a figure which shows the syntax of PLMarkExt (). It is a figure for demonstrating the value which MarkWriteProtectFlag can take. It is a figure which shows the syntax of a ClipInformation file. It is a figure which shows the syntax of ClipExtension (). It is a figure which shows the syntax of ClipInfoExt (). It is a figure for demonstrating the format of the input-output data in a video processing apparatus. It is a figure for demonstrating the file name for every source file. It is a figure for demonstrating the process which converts data, such as a 1st format, a 2nd format, a 3rd format, or a broadcast signal, into the extended format for recording. It is a figure for demonstrating conversion of the directory structure at the time of format conversion. It is a figure for demonstrating the extended information which each of the format of input / output data in a video processing apparatus and the extended format for recording has. It is a functional block diagram for demonstrating the function which a conversion process part has. It is a flowchart explaining a data recording process. It is a flowchart explaining the recording process of the data of a 1st format. It is a flowchart explaining the recording process of the data of a 2nd format. It is a flowchart explaining the recording process of the data of a 3rd format. It is a flowchart explaining the recording process of broadcast data. It is a flowchart explaining a data read-out process. It is a flowchart explaining the data write-out process as a 1st format. It is a flowchart explaining the data write-out process as a 2nd format. It is a flowchart explaining the data write-out process as a 3rd format. It is a block diagram which shows the structure of a personal computer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 Image processing apparatus 12 Optical disk, 31 Control part, 32 Antenna, 33 Broadcast reception control part, 35 Conversion processing part, 36 Local storage, 37 Disk drive, 38 Network interface, 40 Operation input acquisition part, 41 AV decoder part, 101 Recording Data acquisition unit, 102 format detection unit, 103 recording extended format conversion unit, 104 recording control unit, 105 data reading unit, 106 pre-conversion format detection unit, 107 notification control unit, 108 format conversion processing unit, 109 output control unit, 121 attribute information generation unit, 122 file conversion processing unit, 123 directory management unit

Claims (17)

In an information processing apparatus that executes format conversion of a content program in a first format and a second format configured to include a transport stream and reproduction management information for managing reproduction of the transport stream,
The first format having first attribute data not in the second format in an area other than the extension area of the reproduction management information, or not in the first format in the extension area of the reproduction management information Obtaining means for obtaining the content program in the second format having second attribute data;
First detection means for detecting a format type of the content program acquired by the acquisition means;
Based on the detection result by the first detection means, the content program acquired by the acquisition means has an area for describing the first attribute data in an area other than the extension area of the reproduction management information, and An information processing apparatus comprising: first conversion means for converting into a content program of an extended format for recording, having an area for describing the second attribute data in an extended area of the reproduction management information. A part of the information described in the first attribute data included in the content program of the extended format for recording converted by the first converting means and the information described in the second attribute data The information processing apparatus according to claim 1, wherein a part of the information is the same information. The first conversion means refers to the first attribute data when converting the content program in the first format into the content program in the extended format for recording, and arranges it in the extended area of the reproduction management information The information processing apparatus according to claim 2, wherein information is written in at least a part of the region in which the second attribute data is written. When converting the content program of the second format into the content program of the extended format for recording, the first conversion means refers to the second attribute data and other than the extension area of the reproduction management information The information processing apparatus according to claim 2, wherein information is written in at least a part of a region describing the first attribute data arranged in the region. The information processing apparatus according to claim 1, further comprising a recording control unit that controls recording of the content program in the extended format for recording converted by the first converting unit in a recording unit. Read means for reading the content program in the extended format for recording recorded in the recording unit;
And a second format conversion means for converting the format program of the extended format for recording read by the reading means to either the first format or the second format. The information processing apparatus according to claim 5. Second detection means for detecting the type of format before the content program of the recording extended format read by the reading means is converted to the recording extended format by the first conversion means;
The information processing apparatus according to claim 6, further comprising notification control means for controlling notification to a user of a format type before being converted to the extended format for recording detected by the second detection means. The acquisition means further acquires the content program in the second format in which second attribute data is not described,
The first conversion means has an area for describing the first attribute data in an area other than the extension area of the reproduction management information for the content program acquired by the acquisition means. The information processing apparatus according to claim 1, further converting to a content program in an extended format for recording, having an area in which the second attribute data is described in an extended area. The acquisition means further acquires a content program including a transport stream that does not include the raw management information and its attribute information,
The first conversion unit has an area for describing the first attribute data in an area other than an extension area of the reproduction management information for the content program acquired by the acquisition unit based on the attribute information The information processing apparatus according to claim 1, wherein the information processing apparatus further converts the content program into an extended format for recording having an area for describing the second attribute data in an extended area of the reproduction management information. In an information processing method of an information processing apparatus for performing format conversion of a content program in a first format and a second format configured to include a transport stream and reproduction management information for managing reproduction of the transport stream ,
The first format having first attribute data not in the second format in an area other than the extension area of the reproduction management information, or not in the first format in the extension area of the reproduction management information Obtaining the content program in the second format having second attribute data;
Detecting the format type of the acquired content program,
Based on the detection result of the format type, the acquired content program has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and an extended area of the reproduction management information An information processing method including a step of converting into a content program of an extended format for recording having an area for describing the second attribute data. A program for causing a computer to execute format conversion of a content program having a first format and a second format configured to include a transport stream and reproduction management information for managing reproduction of the transport stream. ,
The first format having first attribute data not in the second format in an area other than the extension area of the reproduction management information, or not in the first format in the extension area of the reproduction management information Obtaining the content program in the second format having second attribute data;
Detecting the format type of the acquired content program,
Based on the detection result of the format type, the acquired content program has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and an extended area of the reproduction management information A program for causing a computer to execute processing including a step of converting the content attribute program into a recording extended format content program having an area for describing the second attribute data. A first format, a second format, and a third format configured to include a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream In an information processing apparatus that executes format conversion of a content program in the format of
The first format having first attribute data not in the second format and the third format in an area other than the extension area of the playback management information, and the first format in the extension area of the playback management information The second format having the second attribute data not in the format and the third format, or the third attribute data not in the first format and the second format in the entity management information Obtaining means for obtaining the content program in the third format having:
Detecting means for detecting a format type of the content program acquired by the acquiring means;
Based on the detection result by the detection means, the content program acquired by the acquisition means has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the reproduction management Conversion means for converting into a content program in an extended format for recording, having an area for describing the second attribute data in an extended area of information, and an area for describing the third attribute data in the entity management information; An information processing apparatus comprising: The acquisition means further acquires the attribute information together with the content program of the third format,
The converting means refers to the attribute information when converting the content program of the third format to the content program of the extended format for recording, and is disposed in an area other than the extended area of the reproduction management information The information processing apparatus according to claim 12, wherein information is described in at least a part of an area where the first attribute data is described. The acquisition means further acquires the attribute information together with the content program of the third format,
The converting means refers to the attribute information when converting the content program of the third format into the content program of the extended format for recording, and converts the second program arranged in the extension area of the reproduction management information. The information processing apparatus according to claim 12, wherein information is described in at least a part of an area where attribute data is described. A first format, a second format, and a third format configured to include a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream In the information processing method of the information processing apparatus for executing the format conversion of the content program of the format,
The first format having first attribute data not in the second format and the third format in an area other than the extension area of the playback management information, and the first format in the extension area of the playback management information The second format having the second attribute data not in the format and the third format, or the third attribute data not in the first format and the second format in the entity management information Obtaining the content program in the third format having
Detecting the format type of the acquired content program,
Based on the detection result of the type of format, the acquired content program has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the extended area of the reproduction management information The information processing method includes the step of: converting to a content program in an extended format for recording, having an area in which the second attribute data is described and having an area in which the third attribute data is described in the entity management information. A first format, a second format, and a third format configured to include a transport stream, entity management information for managing the entity of the transport stream, and reproduction management information for managing reproduction of the transport stream A program for causing a computer to execute format conversion of a content program of the format
The first format having first attribute data not in the second format and the third format in an area other than the extension area of the playback management information, and the first format in the extension area of the playback management information The second format having the second attribute data not in the format and the third format, or the third attribute data not in the first format and the second format in the entity management information Obtaining the content program in the third format having
Detecting the format type of the acquired content program,
Based on the detection result of the type of format, the acquired content program has an area for describing the first attribute data in an area other than the extended area of the reproduction management information, and the extended area of the reproduction management information Including a step for converting into a content program in an extended format for recording having a region for describing the second attribute data in the entity management information and having a region for describing the third attribute data in the entity management information. A program to be executed. In the information processing apparatus, an extended format that is converted into a content program in the first format or the second format that includes the transport stream and playback management information that manages playback of the transport stream. The data structure of the content program,
A transport stream,
First attribute data included in the first format but not in the second format, in an area other than the extension area of the reproduction management information;
The extended area of the reproduction management information includes second attribute data included in the second format but not in the first format;
A data structure in which at least a part of the information described in the first attribute data and at least a part of the information described in the second attribute data are the same information.

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