JP4232298B2 - Information processing apparatus and method, reproducing apparatus and method, and recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing apparatus and method, Playback apparatus and method, And an information processing apparatus and method that can edit content without newly generating feature point data, Playback apparatus and method, And a recording medium.
[0002]
[Prior art]
For example, a recording medium on which content (for example, a program) supplied from a television receiver is recorded indicates AV data (video data and audio data) constituting the content, as well as AV data decoding time. So-called feature point information such as information is also recorded.
[0003]
[Problems to be solved by the invention]
By the way, from the recorded content, for example, when new content in which the commercial part is omitted is generated, that is, when the content is edited, conventionally, the generated content (content from which the commercial part is removed) Feature point information is also generated and recorded on a recording medium. For this reason, there are problems that it takes time to edit the content and the recording capacity of the recording medium is not used efficiently.
[0004]
The present invention has been made in view of such a situation, and does not newly generate feature point information.
[0005]
[Means for Solving the Problems]
The information processing apparatus according to claim 1, wherein the unit data constituting the first content When, Each decoding time of the unit data constituting the first content and an arrangement position in the first content , Decoding time of predetermined unit data of element composed of unit data constituting second content selected from unit data constituting first content When, Reproduction order of elements consisting of unit data constituting the second content When, Length of an element composed of unit data constituting third content selected from unit data constituting second content , and In the second content Predetermined unit data of the element Arrangement of Position And control means for storing the information in the storage means .
[0006]
Stored in the storage means In playback order, Stored in the storage means Unit data corresponding to the decoding time of the predetermined unit data of the element, Stored in the storage means Based on decoding time and placement position, First content stored in the storage means Reproducing means for reading out and reproducing from can be further provided.
[0008]
Stored in the storage means In playback order, Stored in the storage means Unit data corresponding to the decoding time of the predetermined unit data of the element, Stored in the storage means Based on decoding time and placement position, Stored in the storage means From the first content Stored in the storage means Reproducing means for extracting and reproducing unit data corresponding to the length and arrangement position of the element can be further provided.
[0009]
The information processing method according to claim 4 is the unit data constituting the first content. And , The decoding time of each unit data constituting the first content and the arrangement position in the first content And When decoding predetermined unit data of an element composed of unit data constituting second content selected from unit data constituting first content Every moment , Playback order of elements composed of unit data constituting the second content Introduction and The length of an element composed of unit data constituting the third content selected from the unit data constituting the second content , and In the second content Predetermined unit data of the element Arrangement of Position And storing the information in the storage means in association with the device .
[0010]
The recording medium according to claim 5 is a unit data constituting the first content. And , The decoding time of each unit data constituting the first content and the arrangement position in the first content And When decoding predetermined unit data of an element composed of unit data constituting second content selected from unit data constituting first content Every moment , Playback order of elements composed of unit data constituting the second content Introduction and The length of an element composed of unit data constituting the third content selected from the unit data constituting the second content , and In the second content Predetermined unit data of the element Arrangement of Position A program for causing a computer to execute a process including a step of storing the information in a storage means in association with a device. .
[0011]
In the information processing device according to claim 1, the information processing method according to claim 4, and the program of the recording medium according to claim 5, unit data constituting the first content When, Each decoding time of the unit data constituting the first content and an arrangement position in the first content , Decoding time of predetermined unit data of element composed of unit data constituting second content selected from unit data constituting first content When, Reproduction order of elements consisting of unit data constituting the second content When, Length of an element composed of unit data constituting third content selected from unit data constituting second content , and In the second content Predetermined unit data of the element Arrangement of Position Is stored in the storage means in association with .
The information processing apparatus according to claim 6, when a part of the first content data is selected as the first partial content data, the feature point information corresponding to the first partial content data and the first content Based on data identification information , Information indicating that the first partial content data is composed of the first content data, and the first content data Of the first partial content data Information indicating the playback start position and playback end position; And the reproduction order of the first partial content data First reproduction management information creating means for creating the first reproduction management information having information as information relating to reproduction of the second content data composed of the first partial content data, and part of the second content data is the first When selected as the second partial content data, based on the first reproduction management information , Information indicating that the second partial content data is composed of the second content data, the data length of the second partial content data, and In the second content data Second partial content data Arrangement of Second reproduction management information creating means for creating second reproduction management information having information indicating a position as information relating to reproduction of the third content data composed of the second partial content data.
The feature point information has data indicating the beginning of each unit in which the content data can be decoded. Second Playback management information for Second of the second partial content data Offset information from the beginning of the content data and Second It has information indicating the data length of the partial content data.
The information processing method according to claim 8, wherein when a part of the first content data is selected as the first partial content data, the feature point information corresponding to the first partial content data and identification of the content data Based on information , Information indicating that the first partial content data is composed of the first content data, and the first content data Of the first partial content data Information indicating the playback start position and playback end position; And the reproduction order of the first partial content data Is created as information relating to the reproduction of the second content data composed of the first partial content data. And When a part of the second content data composed of the first partial content data is selected as the second partial content data, based on the first reproduction management information , Information indicating that the second partial content data is composed of the second content data, the data length of the second partial content data, and In the second content data Second partial content data Arrangement of The second reproduction management information having information indicating the position is created as information relating to reproduction of the third content data composed of the second partial content data. Including steps to Mu
In the information processing device according to claim 6 and the information processing method according to claim 8, when a part of the first content data is selected as the first partial content data, the first partial content data Based on the feature point information corresponding to and the identification information of the first content data , Information indicating that the first partial content data is composed of the first content data, and the first content data Of the first partial content data Information indicating the playback start position and playback end position; And the reproduction order of the first partial content data Is created as information relating to the reproduction of the second content data composed of the first partial content data, and a part of the second content data is selected as the second partial content data The first playback management information , Information indicating that the second partial content data is composed of the second content data, the data length of the second partial content data, and In the second content data Second partial content data Arrangement of Second reproduction management information having information indicating the position is created as information relating to reproduction of the third content data composed of the second partial content data.
The playback device according to claim 9 constitutes first content data. One or more The second content data consisting of the first partial content data is One or more The reproduction order of the first partial content data and the first content data Each of the one or more first partial content data Based on the reproduction start position information and the reproduction end position information, the second content data is configured from the second content data. One or more Third content data consisting of the second partial content data, One or more Second part Each of the content data Data length and One or more in the second content data Second partial content data Each arrangement of Reproduction control means for extracting and reproducing based on information indicating the position is provided.
The reproduction method according to claim 10 constitutes the first content data. One or more The second content data consisting of the first partial content data is One or more The reproduction order of the first partial content data and the first content data Each of the one or more first partial content data Based on the reproduction start position information and the reproduction end position information, the second content data is configured from the second content data. One or more Third content data consisting of the second partial content data, One or more Second part Content data of each Data length and One or more in the second content data Second partial content data Each Extract and play based on the information indicating the location Rusu Including tep.
In the playback device according to claim 9 and the playback method according to claim 10, the first content data is configured. One or more Second content data composed of the first partial content data is One or more The reproduction order of the first partial content data and the first content data Each of the one or more first partial content data Based on the reproduction start position information and the reproduction end position information, the second content data is configured from the second content data. One or more Third content data consisting of the second partial content data is One or more Second part Each of the content data Data length and One or more in the second content data Second partial content data Each arrangement of It is extracted and reproduced based on the information indicating the position.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a configuration example of a recording / reproducing apparatus 1 of the present invention. The recording / playback apparatus 1 has an optical disc 7 mounted thereon, AV data constituting content (for example, a program) supplied from the outside (for example, a television receiver) to the optical disc 7, the title of the content, the recording date and time, and the like. Management data, and feature point data such as a decoding time and a position on the AV data for each unit (hereinafter referred to as a sector) in which AV data can be decoded are recorded. In addition, when the decoding method is defined by MP @ ML (Main Profile at Main Level) of MPEG2 (Moving Picture Experts Group 2), the feature point data is the display time of the I picture of each GOP (Group of Pictures) and This is the position of the I picture. AV data, management data, and feature point data are recorded in the respective file formats on the optical disc 7, AV data is recorded in the AV data file, management data is stored in the management data file, and feature point data is stored in the feature point data. Each file is recorded in a point data file.
[0013]
The recording / reproducing apparatus 1 also reads various data recorded on the optical disc 7 and outputs the data to the outside.
[0014]
The user input / output unit 2 of the recording / reproducing apparatus 1 includes a key panel 11 and an LCD (Liquid Crystal Display) 12. The key panel 11 generates a signal corresponding to a user operation and supplies the signal to the system control unit 4. Based on the signal supplied from the system control unit 4, the LCD 12 displays information regarding the state of the recording / reproducing apparatus 1 or the optical disc 7 mounted on the recording / reproducing apparatus 1.
[0015]
The AV input / output unit 3 includes encoder / decoders 13 and 14 and a multiplexer / demultiplexer 15. Based on the signal supplied from the system control unit 4, the AV input / output unit 3 includes the encoder / decoders 13 and 14 and the multiplexer / demultiplexer 15. Control. The AV input / output unit 3 supplies the system control unit 4 with signals indicating the states of the encoder / decoders 13 and 14 and the multiplexer / demultiplexer 15.
[0016]
The encoder / decoder 13 compresses (encodes) an externally supplied video signal at the time of recording, outputs video data of a predetermined system corresponding to the video signal to the multiplexer / demultiplexer 15, and at the time of reproduction, The video data of a predetermined system supplied from the multiplexer / demultiplexer 15 is decompressed (decoded) and output to the outside. The encoder / decoder 14 compresses (encodes) an externally supplied audio signal at the time of recording, and outputs audio data of a predetermined system corresponding to the audio signal to the multiplexer / demultiplexer 15, and at the time of reproduction, The audio data of a predetermined system supplied from the multiplexer / demultiplexer 15 is decompressed (decoded) and output to the outside.
[0017]
The multiplexer / demultiplexer 15 multiplexes video data and audio data of a predetermined system supplied from the encoder / decoder 13 and the encoder / decoder 14 and outputs them to the drive unit 6 at the time of recording. At the time of reproduction, the multiplexed video data and audio data supplied from the drive unit 6 are separated, and the video data is output to the encoder / decoder 13 and the audio data is output to the encoder / decoder 14.
[0018]
The system control unit 4 controls the user input / output unit 2, the AV input / output unit 3, and the file management unit 5 based on the states of the user input / output unit 2, the AV input / output unit 3, and the file management unit 5.
[0019]
The file management unit 5 controls the drive unit 6 based on a signal from the system control unit 4 and supplies a signal corresponding to the state of the drive unit 6 to the system control unit 4.
[0020]
The drive unit 6 includes a buffer 16, an ECC circuit 17, a modulation / demodulation circuit 18, and a pickup 19, and based on a signal from the file management unit 5, the buffer 16, the ECC circuit 17, the modulation / demodulation circuit 18, and the pickup 19 is operated to record data on the optical disc 7 or read data from the optical disc 7.
[0021]
The buffer 16 temporarily stores data supplied from the AV input / output unit 3, outputs data to an ECC (Error Correction Code) circuit 17 so that the data is not interrupted, and is supplied from the ECC circuit 17. The stored data is temporarily stored and supplied to the AV input / output unit 3 so that the data is not interrupted.
[0022]
The ECC circuit 17 adds ECC to the data supplied from the buffer 16 and outputs the ECC to the modulation / demodulation circuit 18, and after correcting the error of the data supplied from the modulation / demodulation circuit 18 based on the ECC. , Output to the buffer 16.
[0023]
The modulation / demodulation circuit 18 modulates the data supplied from the ECC circuit 17 into a predetermined system and outputs it to the pickup 19, demodulates the data supplied from the pickup 19 based on the predetermined system, and sends it to the ECC circuit 17. Output.
[0024]
Based on the data supplied from the modulation / demodulation circuit 18, the pickup 19 records data on the optical disk 7 attached to the recording / reproducing apparatus 1 or reads the data recorded on the optical disk 7, and sends it to the modulation / demodulation circuit 18. Output.
[0025]
Next, the operation of the recording / playback apparatus 1 when editing content (content A) recorded in advance on the optical disc 7 and generating new content (content B) will be described with reference to the flowchart of FIG. Note that AV data constituting the content A as shown in FIG. 3A is filed and recorded in the AV data file A on the optical disc 7. Also on the optical disc 7, feature point data indicating the decoding time for each sector of the AV data constituting the content A and the position on the AV data as shown in FIG. Has been recorded. In this case, the decoding time as the feature point represents the time from the decoding time of the first sector (sector not shown in FIG. 3) of the content A, and the position as the feature point in this case is It represents the number of bytes from the head sector of content A.
[0026]
In step S1, for example, when the user is viewing the content A (when the content A is being played back), the user input / output unit 2 performs a predetermined operation such as selecting a desired scene of the content A. The system control unit 4 decodes the ID of the content to be edited and the sector constituting the selected scene based on the signal input from the user input / output unit 2 and corresponding to the user operation. The time and the playback order of the sector in the content B are acquired.
[0027]
In the case of this example (FIG. 3 (A)), the sector at the decoding time S1 to time E1 in the content A (hereinafter collectively referred to as element B1), the sector at the decoding time S2 to time E2 (hereinafter referred to as these). Collectively referred to as element B2), sectors from decoding time S3 to time E3 (hereinafter collectively referred to as element B3), and sectors from decoding time S4 to time E4 (hereinafter collectively referred to as element B4) In the content B, the selected element B is reproduced in the order of element B1, element B3, element B4, and element B2. That is, the system control unit 4 includes the element B1, the ID of the content A, the decoding time S1 to time E1, the decoding time S2 to time E2, the decoding time S3 to time E3, the decoding time S4 to time E4, and the content B. Information indicating that playback is performed in the order of element B3, element B4, and element B2 is acquired.
[0028]
In step S2, when the system control unit 4 notifies the file management unit 5 of the information acquired in step S1, the file management unit 5 sets an ID for each element B.
[0029]
Next, in step S3, the file management unit 5 includes the ID of the set element B, the decoding time S of the first sector of the element B, and the decoding time E of the last sector, as shown in FIG. A table (hereinafter referred to as a decoding time table) is generated.
[0030]
In step S4, as shown in FIG. 6, the file management unit 5 generates a table (hereinafter referred to as a reproduction order table) including an ID of the element B and a number indicating the reproduction order of the element B. In this example, since the elements B1, B3, B4, and B2 are reproduced in the order, the reproduction order table in FIG. 6 indicates that the element is reproduced first corresponding to the ID of the element B1. Number (No. 1), corresponding to the ID of element B3, number (No. 2) indicating that playback is second, and indicating that it is played back third, corresponding to the ID of element B4 Corresponding to the number (No. 3) and the ID of the element B2, the number (No. 4) indicating the fourth reproduction is set.
[0031]
Next, in step S <b> 5, the file management unit 5 reads the feature point data file A (a file in which the feature point data of AV data constituting the content A is filed) via the drive unit 6.
[0032]
In step S6, the file management unit 5 generates a table (hereinafter referred to as an offset / data length table) including the offset value and the data length, as shown in FIG. Specifically, the file management unit 5 acquires the position of each sector of the element B1, element B2, element B3, and element B4 of the feature point data (FIG. 4) filed in the feature point data file A. At the same time, the length of each element (for example, the length of element B1 = XE1−XS1) (bytes) is calculated, and the total length (bytes) of element B is calculated. The file management unit 5 sets the calculated total length of the element B and the offset value 0 in the offset / data length table. As in this example, when editing the content A in which the signal supplied from the outside is recorded as it is, the offset value of the offset / data length table is set to 0.
[0033]
Next, in step S7, the file management unit 5 determines that the decoding time table (FIG. 5) generated in step S3, the reproduction order table (FIG. 6) generated in step S4, and the offset / data length table (step S6) 7) is filed in the AV data file B for the content B and recorded on the optical disc 7. In the AV data file B, in addition to the respective tables, information indicating that the content B is composed of AV data of the content A is also filed. Thereafter, the process ends.
[0034]
The content B is generated as described above. Since the decoding time table, the playback order table, and the offset / data length table are generated and the feature point data of the content A is shared, Generation processing (editing processing) is performed quickly, and the recording capacity of the optical disc 7 is saved.
[0035]
Next, the operation of the recording / playback apparatus 1 when playing back the content B generated as described above will be described with reference to the flowchart of FIG.
[0036]
In step S <b> 21, when the user input / output unit 2 is operated by the user and reproduction of the content B is instructed, the system control unit 4 is based on a signal corresponding to the user operation input from the user input / output unit 2. The instruction, that is, the reproduction instruction of the content B is output to the file management unit 5.
[0037]
Next, in step S <b> 22, the file management unit 5 controls the drive unit 6 to read the AV data file A and AV data file B from the optical disc 7. To be exact, the file management unit 5 first reads the AV data file B. Since information indicating that the content B is composed of AV data constituting the content A is filed, In this case, AV data file A in which AV data of content A is filed is also read.
[0038]
In step S23, the file management unit 5 refers to the offset / data length table (FIG. 7) stored in the AV data file B, and detects the offset value (= 0) and the data length (= N).
[0039]
Next, in step S24, the file management unit 5 controls the drive unit 6 and refers to the reproduction order table (FIG. 6) filed in the AV data file B, and each element B reproduced as the content B is referred to. Detect the playback order.
[0040]
In step S25, the file management unit 5 reads the decoding time of the first sector and the decoding time of the last sector of each element B from the decoding time table (FIG. 5) in the element reproduction order detected in step S24. Then, the data are output to the drive unit 6 in the read order. Thereby, for example, first, the decoding times (S1, E1) of the head sector and the last sector of the element B1 are read from the decoding time table, output to the drive unit 6, and then the head of the element B3. The decoding times (S3, E3) of the sector and the last sector are read from the decoding time table and output to the drive unit 6.
[0041]
In step S26, when the decoding time of the first sector and the last sector of each element B is input from the file management unit 5 to the drive unit 6, the drive unit 6 performs the processes shown in FIGS. 3 (A), (C), and (D). As shown, the element B corresponding to the decoding time is read from the AV data filed in the AV data file A according to the input order, and output to the AV input / output unit 3. That is, each element B is output to the AV input / output unit 3 in the order of element B1, element B3, element B4, and element B2, and the AV input / output unit 3 demultiplexes element B in that order. And decode. In this way, the content B is reproduced.
[0042]
Next, the operation of the recording / playback apparatus 1 when editing the content B to generate a new content (content C) will be described with reference to the flowchart of FIG.
[0043]
In step S41, for example, when the user is viewing the content B (when the content B (FIG. 3D) is being played back), the user performs a predetermined operation such as selecting a desired scene. When performed on the input / output unit 2, the system control unit 4 configures the ID of the content to be edited and the selected scene based on the signal input from the user input / output unit 2 and corresponding to the user's operation. The position (offset) on the content B of the first sector of the AV data (element B) to be detected and the data length of the element B are detected.
[0044]
In the case of this example, a sector (hereinafter referred to as an element) from a sector separated by a byte (offset) from the first sector of content B (FIG. 3D) to a sector separated from the sector by L bytes (data length). B11), and a sector from the first sector of content B to a sector separated by b bytes (offset) and a sector separated from that sector by M bytes (data length) (hereinafter referred to as element B12) It is assumed that the scene to be selected is selected. That is, the system control unit 4 detects that the offset of element B11 is a byte and the data length is L bytes, and that the offset of element B12 is b bytes and the data length is M bytes. To do.
[0045]
In step S42, when the system control unit 4 notifies the information acquired in step S41 to the file management unit 5, the file management unit 5 uses the a byte and the b byte as an offset as shown in FIG. An offset / data length table is generated with a data length of M bytes.
[0046]
In step S43, the file management unit 5 controls the drive unit 6 to file the offset / data length table generated in step S42 in the AV data file C for the content C and record it on the optical disc 7. In addition to this offset / data length table, AV data file C includes information indicating that content C is composed of AV data of content B (content composed of AV data of content A). Is done. Thereafter, the process ends.
[0047]
As described above, the content C is generated, but since the offset / data length table is generated and recorded, the decoding time table and the reproduction order table of the content B and the feature point data of the content A are shared. Thus, the content C generation processing (editing processing) is performed quickly, and the recording capacity of the optical disc 7 is saved.
[0048]
Next, the operation of the recording / playback apparatus 1 when playing back the content C generated as described above will be described with reference to the flowchart of FIG.
[0049]
In step S <b> 51, when the user operates the user input / output unit 2 and commands the reproduction of the content C, the system control unit 4 is based on a signal corresponding to the user operation input from the user input / output unit 2. The instruction, that is, the reproduction instruction of the content C is output to the file management unit 5.
[0050]
In step S52, the file management unit 5 controls the drive unit 6 to read the AV data file A, the AV data file B, and the AV data file C from the optical disc 7, respectively. To be precise, the file management unit 5 first reads the AV data file C. However, in this case, since the content C includes information indicating that the content C is composed of AV data of the content B, The AV data file B is read out. Further, since the content AV data file B that has been read includes information indicating that the content B is composed of AV data of the content A, the file management unit 5 also reads the AV data file A.
[0051]
In steps S53 to S56, the same processing as in steps S23 to S26 of FIG. 8 is executed, and the element B constituting the content B is changed from the AV data filed in the AV data file A to the element B1, Data are read in the order of element B3, element B4, and element B2 (FIGS. 3A to 3D).
[0052]
Next, in step S57, the file management unit 5 refers to the offset / data length table (FIG. 10) stored in the AV data file C, and refers to the offset (a byte, b byte) and the data length (L byte and M bytes).
[0053]
In step S58, the file management unit 5 controls the drive unit 6 and, as shown in FIG. 3E, among the AV data constituting the content B read by the processing of steps S53 to S56, as shown in FIG. Only the element B11 and the element B12 are output to the AV input / output unit 3. The AV input / output unit 3 demultiplexes and decodes the elements B11 and B12 input from the drive unit 6. Thereby, the content C is reproduced.
[0054]
In the above description, the decoding time table (FIG. 5), the reproduction order table (FIG. 6), and the offset / data length table (FIG. 5) are applied to the AV data constituting the content A filed in the AV data file A. 7) is generated, but the feature point data A (FIG. 4) filed in the feature point data file A is set as one content. Similarly, the decoding time table, the reproduction order table, and the offset / A data length table can also be generated.
[0055]
The series of processes described above can be realized by hardware, but can also be realized by software. When a series of processing is realized by software, a program constituting the software is installed in a computer, and the program is executed by the computer, whereby the above-described recording / reproducing apparatus 1 is functionally realized. .
[0056]
FIG. 12 is a block diagram showing a configuration of an embodiment of a computer 101 that functions as the recording / reproducing apparatus 1 as described above. An input / output interface 116 is connected to a CPU (Central Processing Unit) 111 via a bus 115, and the CPU 111 receives commands from an input unit 118 such as a keyboard and a mouse via the input / output interface 116. When input, it is stored in a recording medium such as a ROM (Read Only Memory) 112, a hard disk 114, or a magnetic disk 131, an optical disk 132, a magneto-optical disk 133, or a semiconductor memory 134 attached to the drive 120, for example. The program is loaded into a RAM (Random Access Memory) 113 and executed. Thereby, the various processes described above (for example, the processes shown in the flowcharts of FIGS. 2, 8, 9, and 11) are performed. Further, the CPU 111 outputs the processing result to a display unit 117 such as an LCD (Liquid Crystal Display) via the input / output interface 116 as necessary. The program is stored in advance in the hard disk 114 or ROM 112 and provided to the user integrally with the computer 101, or provided as a package medium such as the magnetic disk 131, the optical disk 132, the magneto-optical disk 133, or the semiconductor memory 134. Or can be provided to the hard disk 114 via the communication unit 119 from a satellite, a network, or the like.
[0057]
In the present specification, the steps for describing the program provided by the medium are not limited to the processes performed in time series according to the described order, but are not necessarily performed in time series, either in parallel or individually. This includes the processing to be executed.
[0058]
Further, in this specification, the system represents the entire apparatus constituted by a plurality of apparatuses.
[0059]
【The invention's effect】
The information processing apparatus according to claim 1, Claim 4 Information processing method described in, and Claim 5 According to the recording medium program described in (2), the second content can be quickly generated, and the recording capacity of the recording medium can be saved.
Claim 6 Information processing apparatus described in Claim 8 According to the information processing method described in the above, it is possible to generate reproduction management information for appropriately reproducing a partial content of content data.
Claim 9 And the playback device according to Claim 10 According to the playback method described in , The third Content data can be reproduced properly.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration example of a recording / reproducing apparatus 1 of the present invention.
FIG. 2 is a flowchart illustrating editing processing.
FIG. 3 is a diagram illustrating editing processing and playback processing.
FIG. 4 is a diagram illustrating feature point data.
FIG. 5 shows a decoding time table.
FIG. 6 is a diagram illustrating a reproduction order table.
FIG. 7 is a diagram showing an offset / data length table.
FIG. 8 is a flowchart illustrating a reproduction process.
FIG. 9 is another flowchart illustrating the editing process.
FIG. 10 is another diagram showing an offset / data length table;
FIG. 11 is another flowchart illustrating the reproduction process.
12 is a block diagram showing a configuration of a computer 101. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus, 2 User input / output part, 3 AV input / output part, 4 System control part, 5 File management part, 6 Drive part, 7 Optical disk

Claims (10)

Unit data constituting the first content ;
A decoding time of each of the unit data constituting the first content and an arrangement position in the first content ;
Decoding time of predetermined unit data of an element composed of unit data constituting second content selected from the unit data constituting the first content ;
A reproduction order of the elements composed of the unit data constituting the second content ;
Third length of the element consisting of the unit data constituting the content, and placement position of the predetermined unit data of the elements in the second content selected from said unit data constituting the second content When
Means for associating and storing in the storage means
An information processing apparatus comprising: In the reproduction order stored in the storage means, wherein the unit data corresponding to the decoding time of the predetermined unit data, the decoding time and the arrangement stored in the storage means of the elements stored in said storage means The information processing apparatus according to claim 1, further comprising: a reproducing unit that reads out and reproduces from the first content stored in the storage unit based on a position. In the reproduction order stored in the storage means, wherein the unit data corresponding to the decoding time of the predetermined unit data, the decoding time and the arrangement stored in the storage means of the elements stored in said storage means based on the position, from among the first content stored in the storage means, and extracting the unit data corresponding to the length and the position of the element stored in the storage means, and reproduces reproduction The information processing apparatus according to claim 1, further comprising: means. And the unit data constituting the first content,
The arrangement position location in each of the decoding time and the first content of said unit data that constitute the first content,
And decoding at time of a predetermined unit data elements consisting of unit data constituting the second content selected from said unit data that constitute the first content,
A reproduction order ordinal of the element consisting of the unit data included in the second content,
Wherein said unit third length of the element consisting of the unit data constituting the content selected from the data constituting the second content, and the second distribution 置位of the predetermined unit data of the elements in the content And
Storing the information in the storage means in association with each other
An information processing method including : And the unit data constituting the first content,
The arrangement position location in each of the decoding time and the first content of said unit data that constitute the first content,
And decoding at time of a predetermined unit data elements consisting of unit data constituting the second content selected from said unit data that constitute the first content,
A reproduction order ordinal of the element consisting of the unit data included in the second content,
Wherein said unit third length of the element consisting of the unit data constituting the content selected from the data constituting the second content, and the second distribution 置位of the predetermined unit data of the elements in the content And
Storing the information in the storage means in association with each other
A recording medium on which is recorded a program that causes a computer to execute processing including the above . In an information processing apparatus that edits content data having feature point information,
When a part of the first content data is selected as the first partial content data, based on the feature point information corresponding to the first partial content data and the identification information of the first content data , Information indicating that the first partial content data is composed of the first content data, and information indicating a reproduction start position and a reproduction end position of the first partial content data in the first content data And first reproduction management information having the reproduction order of the first partial content data as information relating to reproduction of the second content data composed of the first partial content data. Creating means;
If some of the second content data is selected as the second partial content data, based on the first playback management information, before Symbol configuration from the second partial content data the second content data and information indicating that it is, the second playback management information and a second information indicating a placement position of the second partial content data in the data length and the second content data partial content data An information processing apparatus comprising: second reproduction management information creating means for creating information as information relating to reproduction of the third content data composed of the second partial content data. The feature point information includes data indicating a head for each unit in which the content data can be decoded;
The second playback management information, claims to have information indicating the offset information a data length of the second partial content data from the beginning of the second content data of the second partial content data 6. The information processing apparatus according to 6. In an information processing method for editing content data having feature point information,
If some of the first content data is selected as the first partial content data, based on the feature point information and identification information of the content data corresponding to the first partial content data, before Symbol first Information indicating that the partial content data is composed of the first content data, information indicating a reproduction start position and a reproduction end position of the first partial content data in the first content data , First reproduction management information having a reproduction order of the first partial content data is created as information relating to reproduction of the second content data composed of the first partial content data ,
If part of the second content data composed of the first partial content data is selected as the second partial content data, based on the first playback management information, the previous SL second partial content data and information indicating that it is composed of the second content data, said second information indicating the placement position of the second partial content data in the data length and the second content data partial content data the step of the second playback management information is created as information relating to the reproduction of the third contents data consisting of the second partial content data having
Including information processing methods. In a playback device for playing back content data,
Second content data composed of one or more first partial content data constituting the first content data is reproduced in the reproduction order of the one or more first partial content data and in the first content data. Based on the reproduction start position information and reproduction end position information of each of the one or more first partial content data , the second content data is configured from the second content data. 1 or more third content data composed of second partial content data, the one or more each of the one or more second partial content in data length and the second content data of the second partial content data reproducing apparatus including a reproduction control means for reproducing and extracted based on the information indicating the respective placement positions of the data. In a playback method for playing back content data,
Second content data composed of one or more first partial content data constituting the first content data is reproduced in the reproduction order of the one or more first partial content data and in the first content data. Based on the reproduction start position information and reproduction end position information of each of the one or more first partial content data , the second content data is configured from the second content data. 1 or more third content data composed of second partial content data, the one or more each of the one or more second partial content in data length and the second content data of the second partial content data reproducing method comprising the absence steps be reproduced extracted based on the information indicating the respective positions of the data.

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