JP4337318B2 - Information processing apparatus and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing apparatus and a program, and in particular, a series of processing until video data recorded on a first recording medium in a first format is recorded on a second recording medium in a second format. The present invention relates to an information processing apparatus and a program that can execute a program without a manual operation by a user.
[0002]
[Prior art]
In recent years, personal computers (hereinafter also referred to as “PC” as appropriate) and digital video tape recorders (hereinafter also referred to as “DV”) have become widespread, and users themselves have recorded video data captured using DV. Can be recorded on a DVD (Digital Versatile Disc).
[0003]
[Problems to be solved by the invention]
However, conventionally, the work of importing video data shot by DV to a PC from DV and the authoring work thereof (for example, the work of recording the captured video data on a DVD) are separate processes. For this reason, there is a problem that the user needs a complicated work and requires a lot of work time when recording video data shot by DV on a DVD.
[0004]
That is, when recording video data shot with DV on a DVD, the user imports DV format video data from a DV into a PC (see Non-Patent Document 1). The program (hereinafter referred to as the data acquisition program) is manually started on the PC, and the operation (manual operation) determined by the data acquisition program is performed. For example, it is stored in the hard disk in the PC.
[0005]
After that, the user manually shuts down the data acquisition program and records the video data stored in the hard disk onto the DVD (see Non-Patent Document 2. Hereinafter, such an application software program is referred to as a DVD. (Referred to as a writing program) manually on the PC, and an operation (manual operation) determined by the DVD writing program is applied to convert the video data format stored on the hard disk from the DV format to the DVD format. After that, the video data in the DVD format is recorded on the DVD, and when it is finished, the DVD writing program is manually started.
[0006]
In this way, when using a PC to record video data recorded with DV on a DVD, the user needs complicated work with multiple manual operations, and a great deal of work time is required accordingly. There was a problem of need.
[0007]
The present invention has been made in view of such a situation. The video data recorded on the first recording medium in the first format is recorded on the second recording medium in the second format. A series of processes can be executed without user manual operation.
[0008]
[Non-Patent Document 1]
"DVgate" product description, [online], Sony Drive website, [searched August 30, 2002], Internet, <URL: http://www.sony.jp/products/Consumer/PCOM/ Software_02q2 / DVgate / index.html>
[Non-Patent Document 2]
“Simple DVD Maker” product description, [online], Sony Drive homepage “Simple DVD Maker” description, [searched August 30, 2002], Internet, <URL: http://www.sony.jp/products/ Consumer / PCOM / Fun / DVD-RW />
[0009]
[Means for Solving the Problems]
An information processing apparatus according to one aspect of the present invention is an information processing apparatus that acquires content data recorded in a first format, the storage unit storing the content data, and the free space of the free area of the storage unit The content data is divided into a plurality of section data based on the calculation means for calculating the free space of the storage means calculated by the calculation means, and a predetermined first of the plurality of divided section data Of the first section data acquired by the acquisition means and stored in the storage means. , Converting the first format to the second format, and converting the format conversion section data having a data amount smaller than the first section data. Generating and converting the generated format conversion section data into a second area of the free area of the storage means, and the conversion section converting the format of the first section data When the format conversion section data is stored in the second area of the storage means, a second section different from the first section data among the plurality of section data constituting the content data Before the data is acquired by the acquisition means, corresponding to each of the erasing means for erasing the first interval data stored in the storage means, and the plurality of interval data acquired by the acquisition means, When each of the plurality of format conversion section data is stored in the storage means, the plurality of format conversion section data are collected. A recording control means for recording the content data in the second format on a predetermined recording medium, and the computing means further includes a first data amount of the content data in the first format, Calculating a second data amount of the content data in a second format, adding the calculated first data amount, and the calculated second data amount to calculate a threshold; When the free space of the storage means calculated by the calculation means is smaller than the threshold value calculated by the calculation means, the acquisition means is calculated by the calculation means from the free capacity of the storage means. An amount obtained by subtracting the second data amount is set as the capacity of the first region, and the content data is set to the set first region. The data is divided into a plurality of the section data having a data amount equal to or less than the capacity of the area, the first section data among the plurality of section data obtained is obtained, and stored in the first area of the storage unit It is memorized.
[0010]
The playback device is a digital video tape recorder, the first format is a format of the digital video tape recorder, and the second format is a format defined by the DVD standard.
[0011]
The digital videotape recorder further comprises an investigation means for reproducing the digital videotape on which the content data is recorded and investigating a recording section from a recording start point to a recording end point appearing next to the recording start point. The acquisition means divides the content data using data corresponding to each of the plurality of recording sections investigated by the investigation means as one piece of the section data, and among the plurality of divided section data The first section data is acquired and stored in the storage means.
[0012]
The acquisition means has a data amount of the first area when the data corresponding to each of the plurality of recording sections investigated by the investigation means includes data whose data amount exceeds the capacity of the first area. The data corresponding to the recording section exceeding the capacity of the first area is further divided into a plurality of data less than the capacity of the first area, instead of one section data, Categorizing the content data as one piece of section data, obtaining the first section data among the plurality of section data divided and storing the first section data in the storage means
[0013]
The investigation means causes the digital video tape recorder to play back the digital video tape on which the content data is recorded at a speed higher than normal, investigate a provisional recording section corresponding to the recording section, and acquire the The means divides the content data using data corresponding to each of the plurality of provisional recording sections investigated by the investigation means as one provisional section data, and includes the plurality of provisional section data. The recording start point of the recording section corresponding to predetermined first provisional section data is detected, and the recording end point appearing next to the recording start point from the detected recording start point to the digital video tape recorder. The pre-recording is controlled so that the data corresponding to the recording section up to is reproduced and the reproduction by the digital video tape recorder is controlled. The data corresponding to the section, and obtains as the first section data, and stores in the storage means.
[0014]
A program according to one aspect of the present invention is a program corresponding to the information processing apparatus according to one aspect of the present invention described above.
[0015]
In the information processing apparatus and program according to one aspect of the present invention, the content data recorded in the first format is acquired in a storage unit or a storage device (hereinafter, only the storage unit) of the information processing apparatus. The free space of the free area of the storage means is calculated, and based on the calculated free space of the storage means, the content data is divided into a plurality of section data, and a predetermined one of the divided plurality of section data First section data is acquired and stored in the first area of the empty areas of the storage means. The format of the stored first section data is converted from the first format to the second format, and format conversion section data having a data amount smaller than the first section data is generated and generated. The format conversion section data is stored in a second area of the empty area of the storage means. When the format of the first section data is converted, and the generated format conversion section data is stored in the second area of the storage unit, among the plurality of section data constituting the content data Before the second section data different from the first section data is acquired, the first section data stored in the storage means is erased. In this way, when each of the plurality of format conversion section data corresponding to each of the acquired plurality of section data is stored in the storage means, the plurality of format conversion section data are collected together, The content data in the second format is recorded on a predetermined recording medium. Further, the first data amount of the content data in the first format, the second data amount of the content data in the second format are calculated, and the calculated first data amount and the first data amount are calculated. When the threshold value is calculated by adding the data amount of 2, and the calculated free capacity of the storage means is smaller than the threshold value calculated by the calculation means, the threshold value is calculated from the free capacity of the storage means. An amount obtained by subtracting the second data amount is set as the capacity of the first region. In this case, the content data is divided into a plurality of section data having a data amount equal to or less than the set capacity of the first area, and the first section among the plurality of section data divided. Data is acquired and stored in the first area of the storage means.
[0017]
The information processing apparatus of the present invention may be connected to the playback apparatus by wire or wirelessly.
[0018]
Further, the information processing apparatus of the present invention may control recording of a recording medium mounted on a drive built in the information processing apparatus itself, or an external drive apparatus is connected wirelessly or by wire, By controlling the external drive device, the recording of the recording medium mounted on the external drive device may be controlled.
[0019]
Of course, the present invention can be applied as an information processing method corresponding to the information processing apparatus of the present invention, and can also be applied to a recording medium for recording the program of the present invention.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a configuration example of an information processing system to which this embodiment is applied.
[0021]
In FIG. 1, the information processing system 1 is provided with a personal computer 11 (hereinafter referred to as PC 11) and a digital video tape recorder 12 (hereinafter referred to as DV 12) connected to each other via a connection line 15. It has been.
[0022]
The connection line 15 may be wired or wireless, and its embodiment is not particularly limited. In this example, for example, an i.LINK (trademark) dedicated cable is used. That is, in this example, for example, the PC 11 and the DV 12 are connected by i.LINK. i.LINK is a trademark of Sony Corporation, the applicant of the present application, and is an IEEE (Institute of Electrical and Electronics Engineers) 1394 high-speed digital serial interface. Accordingly, each of the PC 11 and the DV 12 transmits / receives data (data stored in the packet) conforming to the IEEE1394 standard to each other.
[0023]
When the digital video tape 13 on which predetermined video data is recorded by the DV 12 itself or another DV is loaded, the DV 12 is applied to the digital video tape 13 based on the control of the PC 11 (or manual operation by the user). The recorded video data is reproduced and transmitted to the PC 11 via the cable 15 as a reproduced video signal.
[0024]
The PC 11 receives the playback video signal transmitted from the DV 12 via the connection line 15 and changes the format of the video data corresponding to the received playback video signal from the DV format to the DVD (Digital Versatile Disc) format (for example, , Converted to MPEG-2 (Moving Picture Experts Group-2) format) and written (recorded) on the DVD 14 mounted on the PC 11. Here, DVD-R, DVD-RW, DVD + R, DVD + RW, and DVD-RAM are all collectively referred to simply as DVD14.
[0025]
FIG. 2 shows a detailed configuration example of the PC 11.
[0026]
In the PC 11 of FIG. 2, the CPU 21 is configured by, for example, a Pentium (registered trademark) processor manufactured by Intel, and is connected to a front side bus (FSB) 54. A north bridge 23 is further connected to the FSB 54, and the north bridge 23 has an AGP (Accelerated Graphics Port) 55 and is connected to a hub interface 53.
[0027]
The north bridge 23 is composed of, for example, 440BX which is an AGP Host Bridge Controller manufactured by Intel, and controls the CPU 21 and the memory 22. The memory 22 is configured as a RAM (Random Access Memory) and a cache memory (both not shown).
[0028]
The RAM is composed of, for example, DRAM (Dynamic RAM), and stores programs executed by the CPU 21 or data necessary for the operation of the CPU 21. Specifically, for example, the RAM stores an OS (Operating System), an Internet program, and the like loaded from the HDD 34 when activation is completed. The OS is a program for controlling basic operations of a computer, such as a so-called Windows (registered trademark) XP of Microsoft Corporation or a so-called Mac OS (registered trademark) of Apple Computer.
[0029]
The cache memory is configured by a memory that can execute a higher-speed write or read operation than RAM such as SRAM (Static RAM), and caches (temporarily stores) a program or data used by the CPU 21.
[0030]
Note that the CPU 21 has a cache that can be operated at a higher speed than the cache memory that is primary and is controlled by the CPU 21 itself.
[0031]
The north bridge 23 also controls the video controller 24 via the AGP 55. The video controller 24 controls an LCD (Liquid Crystal Display) 25 or a VGA (Video Graphics Array) type display (hereinafter referred to as VGA 26).
[0032]
The video controller 24 receives data (image data or text data) supplied from the CPU 21 and generates image data corresponding to the received data, or a video memory (see FIG. (Not shown). The video controller 24 causes the LCD 25 or the VGA 26 to display an image corresponding to the image data stored in the video memory. The LCD 25 or VGA 26 displays an image or text based on the data supplied from the video controller 24.
[0033]
The north bridge 23 is further connected to the south bridge 27 via the hub interface 53. The south bridge 27 is composed of, for example, PIIX4E manufactured by Intel, and various I / O (Input / Input) such as control of devices connected to the AC link bus 56, the USB bus 57, or the IDE bus 58. Output).
[0034]
Specifically, the modem 28 and the voice input / output unit 29 are connected to the AC link bus 56. The modem 28 is connected to the public line network and executes communication processing via the public line network or the Internet (both not shown). The voice input / output unit 29 takes in voice from a microphone (not shown), generates data corresponding to the voice, and outputs the data to the memory 22. The voice input / output unit 29 drives a speaker (not shown) and causes the speaker to output voice.
[0035]
A USB connector 30 is connected to the USB bus 57 of the south bridge 27 so that various USB devices can be connected. Further, the memory stick slot 31 and the Bluetooth communication unit 33 are connected via the USB bus 57. A memory stick (trademark) 32 is mounted in the memory stick slot 31.
[0036]
The memory stick 32 is a type of flash memory card developed by Sony Corporation, the applicant of the present application. This Memory Stick 32 is an EEPROM (Electrically Erasable and Programmable Read Only Memory) that is a non-volatile memory that can be electrically rewritten and erased in a small and thin plastic case that is 21.5 x 50 x 2.8 [mm] long. A flash memory element is stored, and various data such as images, sounds, music, and the like can be written and read via a 10-pin terminal. The bluetooth communication unit 33 performs communication according to the bluetooth standard.
[0037]
The HDD 34 is connected to the IDE bus 58 of the south bridge 27. The IDE bus 58 is electrically connected to a so-called IDE device, a CD-ROM (Compact Disc-Read Only Memory) drive 35 and a DVD-R / RW drive 36. The above-mentioned DVD 14 is mounted on the DVD-R / RW drive 36.
[0038]
The south bridge 27 is also connected to a basic input output system (BIOS) 39, a peripheral component interconnect (PCI) bus 51, and a low pin count (LPC) bus 52.
[0039]
The BIOS 39 is a group of programs that collect basic operation instructions of the PC 11, and is stored in, for example, a ROM (Read Only Memory) (not shown). The BIOS 39 controls data exchange (input / output) between the OS or application program and peripheral devices.
[0040]
An I / O (Input / Output) interface 37 and a controller 38 are connected to the LPC bus 52.
[0041]
A parallel terminal 40 and a serial terminal 41 are connected to the I / O interface 37, and exchange data with a device connected to each terminal.
[0042]
Input devices (input means) such as a jog dial 42, a keyboard 43, and a mouse 44 are connected to the controller 38. The controller 38 controls these input devices and a power supply device (not shown). It also controls the power supplied.
[0043]
An i.LINK 45 and a PC card interface 46 are connected to the PCI bus 51. As described above, the I.LINK 45 supplies a signal supplied from the CPU 21 (for example, a control signal for instructing reproduction of the DV 12 described later) to the DV 12 via the dedicated cable 15 and also connects the cable 15 from the DV 12 to the DV 12. A signal (for example, a playback video signal described later) supplied via the CPU is supplied to the CPU 21, the memory 22, or the HDD. The PC card interface 46 supplies data supplied from a device (card (not shown)) connected to the slot 47 to the CPU 21 or the memory 22, and also supplies data supplied from the CPU 21 to the slot 47. Output to the existing card.
[0044]
If necessary, a drive 48 is connected to the slot 47 as shown in FIG. In this case, the drive 48 is connected to the PCI bus 51 via the slot 47 and the PC card interface 46. The drive 48 reads data recorded on a removable recording medium 49 formed of a mounted magnetic disk, optical disk, magneto-optical disk, semiconductor memory, or the like, and supplies the read data to the memory 22. Further, the data generated by the processing of the CPU 21 is stored in a removable recording medium 49 attached to the drive 48.
[0045]
FIG. 3 shows a detailed configuration example of the DV 12 in the information processing system 1 of FIG.
[0046]
As shown in FIG. 3, the DV 12 captures the subject as a moving image, and obtains the sound around the DV 12 at the time when the CCD (Charge Coupled Device) 71 outputs the image as an image signal. The video signal synthesizing unit 73 that synthesizes the image signal supplied from the microphone 72 and the CCD 71 that outputs it as an audio signal and the audio signal supplied from the microphone 72 and outputs it as a recording video signal. The recording video signal supplied from the unit 73 is A / D converted (Analog to Digital conversion), encoded, further modulated, supplied to the head 75, and recorded on the digital video tape 13 described above. A video signal recording / reproducing unit 74 that outputs a reproduced video signal reproduced from the head 13 via the head 75, and the head 7 It is provided.
[0047]
The DV 12 receives a vertical synchronizing signal from the video signal recording / reproducing unit 74 and outputs a control signal corresponding to the vertical synchronizing signal to the video signal recording / reproducing unit 74 in synchronization with the vertical synchronizing signal. Control unit 76 that controls the operation of the entire DV 12 based on an operation command signal from the PC 11 and a control signal supplied from the PC 11 via the connection cable 15 and i.LINK 78, and a button, switch, or remote An operation unit 77 is provided that includes a controller or the like and outputs an operation command signal corresponding to the input operation when the user performs an input operation corresponding to the predetermined command.
[0048]
The DV 12 is further provided with an i.LINK 78, a video signal separation unit 79, a speaker 80, and an LCD (Liquid Crystal Display) 81.
[0049]
The i.LINK 78 is connected to the i.LINK 45 (FIG. 2) of the PC 11 described above via the dedicated connection cable 15, and the playback video signal (digital signal) supplied from the video signal recording / playback unit 74 is transferred to the cable 15. The control signal transmitted from the PC 11 is received via the cable 15 and supplied to the control unit 76.
[0050]
The control signal transmitted by the PC 11 is not particularly limited, and control signals for performing various controls can be used. In this example, for example, of such control signals, the digital video tape 13 mounted on the DV 12 is reproduced at normal speed, and is reproduced at k times speed relative to the normal speed (k is an arbitrary number except 1). A positive number indicates forward playback, a negative number indicates reverse playback), and fast forward, rewind, and tape operation (including playback at K-times speed), At least a control signal for commanding stop of fast-forwarding or rewinding operation is used.
[0051]
Therefore, in this example, for example, when a control signal for playback (including playback at k times speed), fast forward, or rewind is transmitted from the PC 11 via the cable 15, the control unit 76 converts it to i.LINK78. The process corresponding to the received control signal is performed among the processes of reproduction (including reproduction at k-times speed), fast-forward, or rewinding of the digital video tape 13 mounted on the DV 12. Next, when a stop control signal is transmitted from the PC 11 via the cable 15, the control unit 76 receives it via the i.LINK 78 and sends it to the video tape recorder 13 mounted on the DV 12. Stop the process currently being executed. Thus, the DV 12 can be remotely operated by the PC 11 via the i.LINK 78.
[0052]
The video signal separation unit 79 demodulates and decodes the digital reproduction video signal output from the video signal recording / reproduction unit 74, further performs D / A (Digital to Analog) conversion, and then separates into an audio signal and an image signal. Then, an audio signal is supplied to the speaker 80 and an image signal is supplied to the LCD 81. The speaker 80 outputs the audio signal supplied from the video signal separation unit 79 as audio. The LCD 81 displays the image signal supplied from the video signal separation unit 79 as a moving image.
[0053]
Next, referring to the drawings, among the functions of the PC 11 of FIG. 2, the functions to which the present invention is applied, that is, the video data recorded on the digital video tape 13 mounted on the DV 12 (hereinafter referred to as “video data”). , Which is simply referred to as recording data), and a process of executing (recording) on the DVD 14 mounted on the DVD-R / RW drive 36 continuously (collectively) as a series of processes is realized. A software program (hereinafter, such software program is referred to as a data acquisition / DVD writing unit) will be described.
[0054]
FIG. 4 shows a configuration example of the data acquisition / DVD writing unit 91 of this example.
[0055]
As shown in FIG. 4, the data acquisition / DVD writing unit 91 includes an activation unit 101, a processing control unit 102, a DV control unit 103, a survey unit 104, an acquisition unit 105, a bit rate setting unit 106, and a menu creation unit 107. , A DVD writing unit 108, a DVD formatting unit 109, and a survey content / setting content storage unit 110 are provided.
[0056]
Of these, the items excluding the survey content / setting content storage unit 110, that is, the activation unit 101 to the DVD format unit 109 are each configured by a module, for example. Each of these modules has one independent algorithm and performs a specific operation according to that algorithm. That is, each module is appropriately read and executed by the CPU 21 (FIG. 2).
[0057]
Specifically, the activation unit 101 constantly monitors the connection state with the DV 12, and when detecting that the DV 12 is connected to the PC 11 and the DV 12 is turned on, the entire data acquisition / DVD writing unit 91 is Start.
[0058]
When the data acquisition / DVD writing unit 91 is activated, the processing control unit 102 performs each processing of the investigation unit 104 to the DVD formatting unit 109 in a predetermined order (in this example, the processing control unit 102 Control is performed sequentially (as a series of processes) in the order of the numbers described above the arrows drawn between the survey unit 104 and the DVD format unit 109.
[0059]
That is, first, when the DVD format unit 109 makes the DVD 14 mounted on the DVD-R / RW drive 36 writable, the investigation unit 104 records the recorded data of the digital video tape 13 mounted on the DV 12. The bit rate setting unit 106 sets the optimum bit rate (the bit rate of the image data and the bit rate of the audio data) when video data is written on the DVD 14 based on the result of the survey.
[0060]
Then, the acquisition unit 105 acquires the recording data of the digital video tape 13 attached to the DV 12, converts the format from the DV format to the DVD format, and temporarily stores the DVD format video data in the HDD 34. Let
[0061]
Subsequently, the menu creation unit 107 creates a DVD menu corresponding to the video data stored in the HDD 34, and the DVD writing unit 108 converts the video data stored in the HDD 34 into the DVD− based on the created DVD menu. Write (record) on the DVD 14 installed in the R / RW drive 36.
[0062]
The DV control unit 103 generates the above-described control signal based on a command (request) from the investigation unit 104 or the acquisition unit 105 via the processing control unit 102 and transmits the control signal to the DV 12, so that the digital mounted on the DV 12 Controls playback (including k-times playback), rewinding, fast-forwarding, and the like of the video tape 13.
[0063]
The survey content / setting content storage unit 110 is configured, for example, in the memory 22 (FIG. 2), and is set by the bit rate setting unit 106 and the content of the recording data of the digital video tape 13 surveyed by the survey unit 104. The contents of the bit rate setting are stored.
[0064]
Next, processing of the data acquisition / DVD writing unit 91 of FIG. 4 will be described with reference to the flowchart of FIG.
[0065]
First, in step S1, the activation unit 101 determines whether the DV 12 (FIG. 1) is connected to the PC 11 (FIG. 1) and the power (not shown) is turned on.
[0066]
In step S1, when the DV 12 determines that the PC 12 is connected to the PC 11 and the power is not turned on, the activation unit 101 returns the process to step S1 and repeats the subsequent processes. That is, the activation unit 101 constantly monitors whether the DV 12 is connected to the PC 11 and its power (not shown) is turned on.
[0067]
For example, in FIG. 3, assuming that the i.LINK 78 of the DV 12 and the i.LINK 45 (FIG. 2) of the PC 11 are connected via the cable 15 and the power of the DV 12 is turned on, the control unit 76 of the DV 12 A predetermined identification number representing the preset DV 12 is transmitted to the PC 11 via the i.LINK 78 and the cable 15.
[0068]
That is, when the DV 12 is turned on, it means that the content data (recorded data of the digital video data 13) can be played back. Connecting to the PC 11 means that the PC 11 is played back by the DV 12. This means that it is possible to acquire the content data. Therefore, it can be said that this identification number is a signal indicating that the DV 12 is connected to the PC 11 via the cable 15 and the content data can be reproduced by the DV 12.
[0069]
Therefore, in FIG. 4, when the activation unit 101 receives this identification number via the i.LINK 45 (FIG. 2), the DV 12 is connected to the PC 11 and the power is turned on in step S1 of FIG. The process proceeds to step S2.
[0070]
When the process proceeds to step S2, the process control unit 102 controls the processes in steps S2 to S13 described later to be executed collectively (continuously) as a series of processes. In other words, when viewed from the user, the processes of steps S2 to S13 are automatically and sequentially executed without any manual operation by the user. Here, even if there is no manual operation by the user (there is no input from the input device such as the jog dial 42, the keyboard 43, or the mouse 44 in FIG. 2), the CPU 21 makes its own judgment (now executed). The execution of the process according to the program) is called automatic.
[0071]
However, in this case, a trigger for executing the process of the process control unit 102 (the above-described sequence control) is required. This trigger is not particularly limited. For example, detection by the activation unit 101 (detection that the DV 12 is connected to the PC 11 and its power is turned on) itself is used as a trigger (in the process of step S1, the condition is If it is determined that is satisfied, the process of step S2 may be started immediately. Alternatively, after the detection of the activation unit 101, a soft button (not shown) for instructing execution of the processing after step S2 is displayed on the LCD 25 (FIG. 2) or the like, and the user who sees the soft button (FIG. 2) ) Or the like to select the soft button (when the cursor of the mouse 44 (not shown) is placed on the soft button and the left button (not shown) of the mouse 44 is clicked)) The user's click operation (soft button selection operation) may be a trigger, and the process of step S2 may be started.
[0072]
By such a trigger, in step S2, the DVD formatting unit 109 determines whether or not the DVD 14 attached to the DVD-R / RW drive 36 has been written.
[0073]
If it is determined in step S2 that the DVD 14 has not been written, the DVD formatting unit 109 advances the process to step S6.
[0074]
On the other hand, if it is determined in step S2 that the DVD 14 has been written, the DVD format unit 109 determines in step S3 whether or not the recorded content of the DVD 14 can be erased.
[0075]
If it is determined in step S3 that the recorded content of the DVD 14 is not erasable (not possible), the DVD formatting unit 109 displays a message prompting the replacement of the DVD 14 on the LCD 25 (FIG. 2) or the like in step S4. The process returns to step S2, and the subsequent processes are repeated. That is, when the DVD 14 that cannot be erased by the user is removed from the DVD-R / RW drive 36 and a new DVD 14 is inserted into the DVD-R / RW drive 36, the DVD formatting unit 109 performs step S2. In this process, it is determined whether or not the new DVD 14 has been written.
[0076]
On the other hand, if it is determined in step S3 that the recorded content of the DVD 14 can be erased, the DVD formatting unit 109 erases the recorded content of the DVD 14 in step S5.
[0077]
As described above, the DVD formatting unit 109 changes the state of the DVD 14 to a state where new data can be written in the processes of steps S2 to S5. The order of the processing of the DVD formatting unit 109 (the processing of steps S2 to S5) is not limited to the example of FIG. 5 and may be performed before the processing of the DVD writing unit 108 (processing of step S13 described later). Any order may be used.
[0078]
If it is determined in step S2 that the DVD 14 has not been written, or if the process in step S5 is completed, that is, if the DVD formatting unit 109 completes the process, the process control unit 102 Subsequently, the processing of the investigation unit 104 is executed.
[0079]
That is, the investigation unit 104 rewinds the digital video tape 13 attached to the DV 12 in step S6.
[0080]
Specifically, the investigation unit 104 requests the DV control unit 103 to rewind the digital video tape 13 via the processing control unit 102. In response to this request, the DV control unit 103 generates a control signal for instructing “rewinding” and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2).
[0081]
In FIG. 3, when the transmitted control signal is supplied to the control unit 76 via the cable 15 and i.LINK 78, the control unit 76 executes a rewinding process of the digital video tape 13.
[0082]
Then, when the investigation unit 104 in FIG. 4 detects that it has been rewound to the beginning of the digital video tape 13 via the i.LINK 45 (FIG. 2), in step S7 in FIG. 5, the recorded contents of the digital video tape 13 are recorded. To investigate the.
[0083]
The investigation method performed in step S7 is not particularly limited. In this example, for example, the following method is used.
[0084]
That is, the investigation unit 104 requests the DV control unit 103 via the processing control unit 102 for fast-forward playback of the digital video tape 13. In response to this request, the DV control unit 103 generates a control signal for instructing “k (k is an arbitrary positive value larger than 1) double speed reproduction”, and the DV 12 via the i.LINK 45 (FIG. 2). Send to.
[0085]
In FIG. 3, when the transmitted control signal is supplied to the control unit 76 via the cable 15 and the i.LINK 78, the control unit 76 starts the fast-forward playback process at the k-times speed of the digital video tape 13. To do. The video signal recording / reproducing unit 74 sequentially transmits the reproduced video signal reproduced from the digital video tape 13 via the head 75 to the PC 11 via the i.LINK 78 and the cable 15.
[0086]
In the case of fast forward playback at k-times speed, not all the frames recorded on the digital video tape 13 are played back, but a predetermined number of frames are skipped and played back. That is, in this case, a frame at a predetermined interval among all the frames recorded on the digital video tape 13 is scanned, and only data corresponding to the scanned frame is reproduced as a reproduced video signal. Is sent to PC11. The digital video tape format stipulates that 30 frames (images) are recorded per second, and this frame is referred to as a frame here.
[0087]
4 obtains the reproduced video signal (scanned frame data) via the i.LINK 45 (FIG. 2), and further acquires the frame from the acquired frame data. Get time information for.
[0088]
That is, in the frame data, in addition to the video data (image and audio data) corresponding to the frame, for example, information on the frame number of the frame, the shooting time of the frame (year, month, day, hour, Minute and second) information, and when the frame is a recording start point, time information including information indicating the frame (hereinafter referred to as recording start point information) is included. Here, in FIG. 3, the position (point) of the digital video tape 13 at the time when the user presses a recording button (not shown) in the operation unit 77 to start shooting is defined as a recording start point. Called. In addition, the frame immediately before the frame including the recording start point information is referred to as a frame including the recording end point information for convenience. That is, the frame including the recording end point information may not include specific information corresponding to the recording end point information.
[0089]
Therefore, the investigation unit 104 in FIG. 4 acquires time information of such a frame (however, a scanned frame), and investigates the recording content of the digital video tape 13 based on the acquired time information.
[0090]
Specifically, when detecting the frame including the recording start point information, the investigating unit 104 acquires the time information of the frame, and when detecting the frame including the recording end point information, the time information of the frame is acquired. To get. Then, the investigation unit 104 recognizes from the detected frame including the recording start point information to the frame including the recording end point information as one recording section, and generates time information of the recording section. That is, the start time (year, month, day, hour, minute, and second), end time (year, month, day, hour, minute, and second) of the recording section, and the length of the recording section Time information of the recording section including (time) is generated.
[0091]
By the way, in general, the entire recording data of the DVD 14 is divided into a plurality of recording sections in advance, and when a predetermined operation is performed, playback from the head of an arbitrary recording section is enabled. . Such a recording section of the DVD 14 is generally called a chapter. In the present embodiment, as will be described later, when the recording data of the digital video tape 13 taken into the PC 11 is written (recorded) on the DVD 14, predetermined recording of the recording data of the digital video tape 13 is performed. One recording section from the start point to the next recording end point is handled as a chapter of one DVD 14. Therefore, hereinafter, such a recording section from the recording start point to the recording end point will be referred to as a chapter even before being recorded on the DVD 14.
[0092]
However, as described above, in this case, the frame that can be investigated by the investigation unit 104 (the frame that is actually acquired) is only the scanned frame, and the frame including the recording start point and the recording end point is scanned. Not necessarily. Therefore, the investigating unit 104 compares the shooting time of the first frame acquired just now and the shooting time of the second frame acquired immediately before, and if the first frame and the second frame are separated by a predetermined time or more, Are recognized as different chapter frames. That is, the CPU 21 (FIG. 2) regards the second frame acquired immediately before as the frame including the recording end point information (the last frame of the target chapter investigated so far), and the first frame acquired now. Is regarded as a frame including the recording start point information (the first frame of the next chapter of the target chapter (the next chapter to be investigated)), and the second frame acquired immediately before that and the first frame acquired now The interval is recognized as a chapter break.
[0093]
In this way, each time the chapter is recognized, the investigation unit 104 generates time information of the newly recognized chapter.
[0094]
More specifically, for example, as shown in FIG. 6, a part of the recording contents of the digital video tape 13 is a recording section 121 composed of frames having frame numbers 0 to 1000, and frame numbers 1001 to 1999. It is assumed that the recording section 122 is configured by the recording sections 122 configured by the frame numbers, the recording sections 123 configured by the frames having the frame numbers 2000 to 3300, and the recording section 124 configured by the frames having the frame numbers 3301 to 4000. . In the figure, in each of the recording sections 121 to 124, in the area described as “ST” (frames for one second (30 frames)), the above-described recording start point information is added to the video data. The areas (frames) stored and stored as “section data” represent areas where only video data is recorded.
[0095]
In this case, as described above, in FIG. 4, when the examining unit 104 examines the recording content of the digital video tape 13, only the frame scanned by fast-forward reproduction is supplied. Therefore, the contents investigated in the process of step S7 (FIG. 5) of the investigation unit 104 are not actual recording sections 121 to 124 but chapters (section data) 131 to 134 as shown in the investigation contents of FIG. It becomes.
[0096]
In other words, in the example of FIG. 6, in the recording section 121, the frame data of frame numbers 1 to 998 is recognized as the chapter 131, and the frames 0, 999, and 1000 are not recognized as the chapter 131.
[0097]
In the recording section 122, the data of frames with frame numbers 1003 to 1998 are recognized as chapters 132, and the frames 1001, 1002, and 1999 are not recognized as chapters 132.
[0098]
In the recording section 123, the frame data of frame numbers 2003 to 3228 is recognized as the chapter 133, and the frames 2000 to 2002, the frame 3229, and the frame 3300 are not recognized as the chapter 133.
[0099]
In the recording section 124, the frame data of frame numbers 3307 to 3338 is recognized as the chapter 134, and the frames 3301 to 3306, the frame 3339, and the frame 4000 are not recognized as the chapter 134.
[0100]
Hereinafter, data 141 to 148 that are not recognized in the process of step S7 (FIG. 5) as shown in FIG. 6 are referred to as unrecognized data.
[0101]
Then, when the investigation unit 104 in FIG. 4 detects that the fast-forward playback to the tape end of the digital video tape 13 is performed via the i.LINK 45 (FIG. 2), the time information of each chapter recognized so far is obtained. Generate a list of chapter lists (not shown), and further add up each chapter time (time from chapter start time to end time) included in the chapter list. By adding the time corresponding to the unrecognized data, the total time Tx of the recording data of the digital video tape 13 is calculated.
[0102]
Further, as described above, the first frame and the last frame of each chapter included in the chapter list do not necessarily match the first frame and the last frame of the actual recording section. For example, in FIG. 6, the first frame of the recording section 121 is a frame with frame number 0, and the last frame is a frame with frame number 1000. On the other hand, the first frame of the chapter 131 recognized by the investigating unit 104 (FIG. 4) is the frame with the frame number 1, and the final frame is the frame with the frame number 998.
[0103]
Therefore, of the first frame and the last frame of each chapter included in the chapter list, the investigating unit 104 applies a predetermined flag (therefore) to a frame that does not include the recording start point information or the recording end point information. Such flags are hereinafter referred to as ambiguous flags), and these ambiguous flags are also added as chapter list information.
[0104]
In this way, in this example, the investigation unit 104 investigates the time information (chapter list) of all the chapters and the total time Tx of the recorded data as the recording contents of the digital video tape 13. Then, the investigation unit 104 stores the investigated recording content (chapter list and total time Tx) in the investigation content / setting content storage unit 110 via the processing control unit 102. Of course, the content stored in the survey content / setting content storage unit 110 (the content of the recording data of the digital video tape 13 investigated in the process of step S7 (FIG. 5)) is information other than this example. Also good.
[0105]
When the recording content of the digital video tape 13 is stored in the survey content / setting content storage unit 110, the processing control unit 102 causes the bit rate setting unit 106 to execute the process.
[0106]
That is, the bit rate setting unit 106, based on the total time Tx of the recording data of the digital video tape 13 currently stored in the investigation content / setting content storage unit 110 in step S8 of FIG. In the processing, when the recording data of the digital video tape 13 is written (recorded) on the DVD 14 mounted on the DVD-R / RW drive 36, the image quality of the moving image (image data), the image size, In addition, the sound quality of each sound (voice data) is determined.
[0107]
Among the recording data of the digital video tape 13, the image quality of image data, the image size, and the sound quality of audio data are the bit rate (image data) when the recording data of the digital video tape 13 is written on the DVD 14. It depends on the image bit rate when data is written and the audio bit rate when audio data is written. That is, in the processing of step S8, all the recording data of the digital video tape 13 can be written within the range of the maximum capacity (writable capacity) of the DVD 14 based on the total time Tx of the recording data of the digital video tape 13. Among the various bit rates, the optimum bit rate is set.
[0108]
Therefore, hereinafter, the processing in step S8 is referred to as “bit rate setting processing”. Details of the “bit rate setting process” in this example will be described later with reference to the flowchart of FIG.
[0109]
After such processing of the bit rate setting unit 106, the processing control unit 102 causes the acquisition unit 105 to continue to execute processing. That is, in step S9 of FIG. 5, the acquisition unit 105 acquires the recording data of the digital video tape 13 from the DV 12 via the i.LINK 45 (FIG. 2) and temporarily stores it in the HDD 34. The acquisition unit 105 further converts the format of the video data stored in the HDD 34 from the DV format to the DVD format (for example, MPEG-2 format), stores the format in the HDD 34, and stores the format of the DV format before conversion. The video data is deleted from the HDD 34. Hereinafter, such processing in step S9 is referred to as “digital video tape recording data acquisition processing”. Details of the “digital video tape recording data acquisition process” in this example will be described later with reference to FIGS.
[0110]
By the way, in addition to the actual video data, the DVD 14 can also record a menu called a DVD menu, and the user can perform various operations related to the reproduction of the video data recorded on the DVD 14 according to the DVD menu. It can be performed. Furthermore, this DVD menu can also include a menu called a chapter menu, and the user selects a desired chapter from the chapters registered in the chapter menu. Can be played from the beginning of the chapter.
[0111]
Therefore, the processing control unit 102 causes the menu creation unit 107 to execute processing following the processing of the acquisition unit 105. That is, in step S10, the menu creation unit 107 generates a chapter list (actually, in the process of step S9, as will be described later) generated by the process of step S7 and stored in the survey content / setting content storage unit 110. A predetermined chapter is selected from the chapters included in the updated chapter list), registered in the chapter menu, and a final chapter menu (when writing to the DVD 14) is generated. Hereinafter, such processing in step S10 is referred to as “chapter registration processing”. Details of the “chapter registration process” in this example will be described later with reference to the flowchart of FIG.
[0112]
Following the “chapter registration process” in step S10, the menu creation unit 107 creates a DVD menu including the chapter menu generated in the process in step S10 in step S11.
[0113]
When the DVD menu is created by the process of the menu creation unit 107, the process control unit 102 causes the DVD writing unit 108 to execute the process. That is, when the DVD writing unit 108 creates the DVD structure in step S12, in step S13, the bit rate set by the bit rate setting unit 106 in the process of step S8 (investigation contents / settings) according to the created DVD structure. (The bit rate stored in the content storage unit 110), the video data (DVD format video data stored in the HDD 34) acquired by the acquisition unit 105 in step S9 is converted into the DVD-R / RW drive 36. Is written (recorded) on the DVD 14 attached to the CD. Here, a data structure such as an arrangement position and a hierarchy of data to be recorded on the DVD 14 which is generated according to the DVD menu is referred to as a DVD structure.
[0114]
In this way, in FIG. 2, the PC 11 collects a series of processes from acquiring the recording data of the digital video tape 13 from the DV 12 and recording it on the DVD 14 attached to the DVD-R / RW drive 36. The data acquisition / DVD writing unit 91 as shown in FIG. 4 is installed in advance in the HDD 34 or the like. Accordingly, when the activation unit 101 of the DV data acquisition / DVD writing unit 91 detects that the DV 12 is connected to the PC 11 and turned on, the DV data acquisition / DVD writing unit 91 automatically And the process (a series of processes from step S2 to S13 described above) is executed (automatically) without any manual operation by the user.
[0115]
In other words, the PC 11 is connected to a playback device that plays back content data recorded in the first format, and content data acquisition means is used to acquire content data played back by the playback device connected to the connection device. The content data acquired by the content data acquisition means is converted from the first format into the second format, and the content data converted into the second format by the conversion means is converted from the information processing apparatus. A recording control means for controlling recording on a predetermined detachable recording medium, a playback apparatus connected to a connection means supplied from the playback apparatus, and content data playback by the playback apparatus being possible; Detection means for detecting the signal to be expressed, and when the detection means detects the signal Content data acquisition means, converting means, and the processing of the recording control means, as a series of processes, characterized in that it comprises a process control means for controlling so as to execute in succession in that order.
[0116]
That is, the user does not perform any special operation (simply simply connect the DV 12 to the PC 11 and turn on the DV 12 (if necessary, command the execution of the data acquisition / DVD writing unit 91). Just click the soft button to click with the mouse 44)), and the recorded data of the digital video tape 13 from the DV 12 is automatically taken into the PC 11, and then the DVD 14 installed in the DVD-R / RW drive 36 Automatically recorded.
[0117]
Therefore, the data acquisition / DVD writing unit 91 can solve the conventional problems described above.
[0118]
In FIG. 2, the video data automatically taken into the PC 11 is not limited to the DVD 14 mounted on the DVD-R / RW drive 36 as described above, but various recording media such as a CD-ROM drive. The data can be recorded on a CD-R (not shown) mounted on the memory 35, a memory stick 32 mounted on the memory stick slot 31, or a removable recording medium 49 mounted on the drive 48.
[0119]
Next, referring to the drawings, the above-described “bit rate setting process (process in step S8)”, “digital video tape recording data acquisition process (process in step S9)”, and “chapter registration process (step S9)” Each detail of “the process of S10” will be described individually in that order.
[0120]
First, the details of the “bit rate setting process” in this example will be described with reference to the flowchart of FIG.
[0121]
First, in step S31, the bit rate setting unit 106 in FIG. 4 is a digital video tape that has been investigated by the investigation unit 104 in the process of step S7 (FIG. 5) described above and stored in the investigation content / setting content storage unit 110. Based on the total time Tx of the 13 recorded data, the image data of the data written on the DVD 14 (recorded data of the digital video tape 13) is the audio data at the highest bit rate of the first value. It is determined whether or not writing to the DVD 14 is possible at the bit rate of the second value.
[0122]
In this example, for example, the first value (maximum value) of the bit rate of the image is 8 mega [bps], and the second value (maximum value) of the audio bit rate is the uncompressed straight PCM. It is set to 1.567 mega [bps] specified in the (Pulse Code Modulation) format.
[0123]
In this case, in the process of step S31, the bit rate setting unit 106 determines whether or not the following inequality (1) is satisfied, and determines the highest first image data among the data to be written to the DVD 14. It is determined whether or not the audio data can be written to the DVD 14 at the highest bit rate of the second value.
[0124]
(B1 + B2) x Tx <Cmax (1)
[0125]
In equation (1), B1 is the first value [bps] of the bit rate of the image, B2 is the second value [bps] of the audio bit rate, and Tx is the total time of the video data written on the DVD 14 [ s] (total time [s] of recording data of the digital video tape 13 stored in the survey content / setting content storage unit 110), and Cmax represents the maximum recordable capacity [bit] of the DVD 14, respectively.
[0126]
If it is determined in step S31 that the above inequality (1) holds, the bit rate setting unit 106 sets the image data to the first value B1 and the audio data to the second value B2 in step S32. At the bit rate (in uncompressed straight PCM format), set to the first setting to write to DVD 14, and return the process.
[0127]
On the other hand, if it is determined in step S31 that the above inequality (1) is not satisfied, the bit rate setting unit 106 determines that the image data among the data written to the DVD 14 is the highest in step S33. It is determined whether or not the audio data can be written to the DVD 14 at a preset third value bit rate lower than the highest second value at a bit rate of 1 value.
[0128]
In this example, for example, the third value of the audio bit rate is set to 0.384 mega [bps] defined in the Dolby AC-3 compression format.
[0129]
In this case, in step S33, the bit rate setting unit 106 determines whether or not the following inequality (2) is satisfied, thereby converting the image data of the data to be written to the DVD 14 to the first value bit. It is determined whether the audio data can be written to the DVD 14 at the bit rate of the third value at the rate.
[0130]
(B1 + B3) x Tx <Cmax (2)
[0131]
In equation (2), B3 represents the third value [bps] of the bit rate of the voice.
[0132]
If it is determined in step S33 that the above inequality (2) holds, the bit rate setting unit 106 in step S34 sets the image data to the first value B1 and the audio data to the third value B3. At the bit rate (in the Dolby AC-3 compression format), the second setting for writing to the DVD 14 is set, and the process is returned.
[0133]
On the other hand, if it is determined in step S33 that the above inequality (2) is not satisfied, the bit rate setting unit 106 sets the writing of audio data to the bit rate of the third value B3 in step S35. Then, the bit rate of the image data that can be written within the capacity of the DVD 14 is calculated.
[0134]
In this example, for example, the bit rate setting unit 106 calculates the bit rate value B4 of the image data such that the following inequality (3) holds.
[0135]
(B4 + B3) x Tx <Cmax (3)
[0136]
In equation (3), B4 represents the fourth value of the bit rate of the image data set (calculated) in the process of step S35.
[0137]
Then, the bit rate setting unit 106 converts the audio data into the bit rate of the third value B3 (Dolby AC-3 compression format) at the bit rate of the fourth value B4 calculated in the process of step S35. Then, the third setting to be written on the DVD 14 is set, and the process is returned.
[0138]
A specific example of the “bit rate setting process” will be described with reference to FIGS. 8 and 9. FIG. 8 shows the relationship between the total time Tx of data written to the DVD 14 (the total time Tx of recording data of the digital video tape 13 investigated in the process of step S7 (FIG. 5)) and the set bit rate. Yes. FIG. 9 shows the relationship between the total time Tx of data written to the DVD 14 and the data capacity when written to the DVD 14.
[0139]
For example, as data to be written on the DVD 14, the data Da whose total time Tx is a time Ta (where the total time Ta is a time equal to or less than the maximum time T1 to which the first setting is applied), and the total time Tx is a time Tb. (However, the total time Tb is the time below the maximum time T2 to which the second setting is applied) and the data Db, and the total time Tx is the time Tc (however, the third setting is applied to the total time Tc) Data Dc for a certain time).
[0140]
In this case, the first setting is set in the data Da. That is, since the total time of the data Da is the time Ta, the first value B1, which is the maximum value of the image, is set as the value of the bit rate of the image as shown by the line 151 in FIG. As the bit rate value, as shown by a line 153 in FIG. 8, the second value B2, which is the maximum value of audio, is set (uncompressed straight PCM format is set). Therefore, as shown by the line 161 in FIG. 9, when the data Da is written on the DVD 14, the capacity Cb of the total writable capacity (maximum capacity Cmax) of the DVD 14 is used (recorded). .
[0141]
In the data Db, the second setting is set. That is, since the total time of the data Db is time Tb, the value of the bit rate of the image is set to the first value B1, which is the maximum value of the image, as shown by the line 151 in FIG. As indicated by a line 154 in FIG. 8, the bit rate value is set to a third value B3 lower than the maximum audio value B1 (a compression format such as Dolby AC-3 is set). Therefore, as shown by the line 162 in FIG. 9, when the data Db is written on the DVD 14, the capacity Ca of the total writable capacity (maximum capacity Cmax) of the DVD 14 is used (recorded). .
[0142]
In the data Dc, the third setting is set. That is, since the total time of the data Dc is the time Tc, the value of the bit rate of the image has a characteristic that the bit rate decreases linearly as the total time Tx increases (in the example of FIG. 8, it is represented by the line 152). The fourth value B4 determined by the characteristic) is set (calculated in the process of step S35), and the audio bit rate value is set to the third value B3 as shown by the line 154 in FIG. (A compression format such as Dolby AC-3 is set.) Therefore, as shown by the line 163 in FIG. 9, when the data Dc is written on the DVD 14, it is used (recorded) up to the maximum writable capacity Cmax of the DVD 14.
[0143]
As described above, when the total time Tx of the data written on the DVD 14 (the total time Tx of the recording data of the digital video tape 13 investigated in the process of step S7 (FIG. 5)) is equal to or less than the time T1, the image and sound are recorded. A first setting is set for the highest bit rate (first value B1 of the image and second value B2 of the sound).
[0144]
When the total time Tx is longer than the time T1 and less than the time T2, the image bit rate remains the highest first value B1, and only the audio bit rate is lowered (lower than the second value). A second setting is set (a third value is specified).
[0145]
In the second setting, in this example, as described above, the image quality remains unchanged and the sound quality is lowered first, but of course, the sound quality remains unchanged and the image quality is lowered first. May be. However, for the following reason, the second setting is more preferable in this example (setting in which the sound quality is lowered first while the image quality remains unchanged). That is, the first reason is that the audio data is less likely to be transmitted to the user when the bit rate is lowered compared to the image data even if the bit rate is lowered. In other words, even if the audio bit rate is lowered from the second value B2 to the third value B3, the deterioration of sound quality is often not perceived by human hearing. The second reason is that, as a general tendency, there are many users who prioritize image quality over sound quality.
[0146]
The method for lowering the audio bit rate is not particularly limited. For example, the fourth value B4 of the image bit rate is calculated and determined (as determined according to the line 152 in FIG. 8). The bit rate may be gradually (continuously) lowered in accordance with the length of the total time Tx. However, for the following two reasons, as described above, the method of reducing the audio bit rate is based on a certain point (time T1) from the second fixed value B2 to a lower third fixed value B3. The method of discontinuously lowering is preferable. That is, the reason similar to the first reason described above, and the second value B2 itself, which is the highest value of the sound, is considerably lower than the bit rate of the image. This is because of the third reason that even if it is gradually lowered, it does not contribute much to the reduction of the capacity written on the DVD 14.
[0147]
When the total time Tx is longer than the time T2, a third setting for further reducing the bit rate of the image is set.
[0148]
The method for lowering the bit rate of the image is not particularly limited, and may be a method for lowering the bit rate discontinuously at a certain point, for example, like audio. However, according to the length of the total time Tx, the fourth value B4 described above is calculated and determined (as determined according to the line 152 in FIG. 8) for the opposite reason to the voice. A method of gradually (continuously) lowering the bit rate is preferable. In other words, when the bit rate of image data is reduced compared to audio data, the degree of deterioration associated therewith is likely to be communicated to the user (in many cases, human image quality is sensitive to image deterioration). The fourth reason (the opposite reason to the first reason) and the first value B1, which is the highest value of the image, are fairly high values, and the decrease in the bit rate of the image is caused by the capacity written to the DVD 14 This is because of two reasons: a fifth reason (a reverse reason to the third reason) that contributes greatly to reduction.
[0149]
As described above, since the bit rate setting unit 106 of FIG. 4 executes the “bit rate setting process”, the following effects can be obtained.
[0150]
That is, conventionally, when the video data (recorded data on the digital video tape 13) taken by the DV 12 is written on the DVD, the user manually calculates the total time Tx of the recorded data on the digital video tape 13 (or , Calculate the bit rate when writing to DVD from the total time Tx manually, register the bit rate calculated manually and register it on the PC, and then the PC data acquisition program Is started, the recording data of the digital video tape 13 is imported from the DV 12 to the PC, the data acquisition program is stopped, the DVD writing program is further started, and the captured video data is registered in the PC. It was written on a DVD at a bit rate (a bit rate calculated manually).
[0151]
However, users can be familiar with and manipulate DVD standards, DV standards, and various other standards, and the knowledge that accompanies them, in order to manually calculate the bit rate. There was a problem that advanced skills were required of users. Furthermore, even for users with such advanced knowledge and skills, a bit rate that satisfies the desired image quality and sound quality (generally the highest image quality and sound quality within the capacity of a DVD). There is a problem that it becomes a very difficult task to calculate.
[0152]
In addition, the user directly connected a DVD-R recorder device or the like to the DV 12 without using a PC, and the video data (recorded data on the digital video tape 13) shot by the DV 12 was mounted on the DVD-R recorder. Although it is possible to write to a DVD, in this case, since the bit rate set in advance on the DVD-R recorder side is used, it is not necessarily recorded on the DVD at the optimum bit rate (image quality and sound quality). There was no problem.
[0153]
In contrast, as described above, in the PC 11 (FIG. 2), the bit rate setting unit 106 is provided as one function of the data acquisition / DVD writing unit 91 (FIG. 4). That is, the user does not need to perform any special operation (just connect the DV 12 to the PC 11 and turn on the DV 12), and the optimum data to be written on the DVD 14 (recorded data on the digital video tape 13). The correct bit rate is set automatically.
[0154]
In other words, the PC 11 is detachable from the information processing apparatus on the basis of the investigation means for examining the predetermined time information of the content data recorded in the first format and the time information on the content data investigated by the investigation means. Setting means for setting the bit rate when content data is recorded on a predetermined recording medium, and the bit set by the setting means by converting the format of the content data from the first format to the second format And a recording control means for controlling recording on a recording medium at a rate.
[0155]
As described above, the bit rate setting unit 106 can perform the “bit rate setting process” to achieve an effect that the conventional problem with respect to the bit rate setting described above can be solved.
[0156]
Next, with reference to FIG. 10 and FIG. 11, the details of the “digital video tape recording data acquisition processing” executed by the acquisition unit 105 (FIG. 4) will be described.
[0157]
FIG. 10 illustrates a detailed configuration example of the acquisition unit 105.
[0158]
As shown in FIG. 10, the acquisition unit 105 checks the free space of the HDD 34 and selects an acquisition mode selection unit 171 and an acquisition mode selection unit 171 that select a mode when the recording data of the digital video tape 13 is captured from the DV 12. Thus, when the mode for dividing and acquiring the data is selected, the recording data of the digital video tape 13 is divided, and each of the divided video data is sequentially divided and imported from the DV 12 in the DV format, which will be described later on the HDD 34. The division acquisition unit 172 for storing in the DV format storage area 34-2, the video data format stored in the DV format storage area 34-2 of the HDD 34 is converted from the DV format to the DVD format, and the HDD 34 Format converter 173 to be stored in the DVD format storage area 34-3, and , Acquiring data deletion unit 174 deletes the video data of DV format stored in the DV format storage enabled area 34-2 of the HDD34 is provided.
[0159]
In addition, when the acquisition mode selection unit 171 selects a mode for acquiring data all at once, the acquisition unit 105 collectively imports the recording data of the digital video tape 13 from the DV 12 in the DV format and the DV format of the HDD 34. When the batch acquisition unit 175 to be stored in the storable area 34-2 and the recording data to be captured on the digital video tape 13 are overlaid on the old video data, the digital video tape 13 is reproduced. A superimposition monitoring unit 176 is provided for instructing the batch acquisition unit 175 (if necessary, the division acquisition unit 172) to stop the acquisition process when the recording data to be captured becomes old video data. Yes.
[0160]
Similarly to the overlap monitoring unit 176, the acquisition unit 105 further instructs the batch acquisition unit 175 (the division acquisition unit 172 as necessary) to stop the acquisition process, and the unrecorded area monitoring unit 177. A tape end monitoring unit 178 is provided. The unrecorded area monitoring unit 177 outputs a stop command when an unrecorded area continues for a predetermined time or longer during playback of the digital video tape 13. The tape end monitoring unit 178 outputs a stop command when the digital video tape 13 is reproduced to the tape end.
[0161]
Next, with reference to FIG. 11, the details of the “digital video tape recording data acquisition process” in this example will be described.
[0162]
First, in step S51, the acquisition mode selection unit 171 checks the capacity of the free area 34-1 of the HDD 34 (hereinafter referred to as free capacity), and in step S52, the data of all chapters written on the DVD is checked. It is determined whether or not the free space of the HDD 34 is stored.
[0163]
Specifically, in this example, for example, the acquisition mode selection unit 171 is investigated by the investigation unit 104 (FIG. 4) in the process of step S7 (FIG. 5), and the investigation content / setting content storage unit 110 (FIG. 4) The total time Tx of the recording data of the digital video tape 13 stored in 4) is set by the bit rate setting unit 106 (FIG. 4) in the process of step S8 (FIGS. 5 and 7), and the investigation contents / setting contents The recording capacity of the DVD 14 is multiplied by the bit rate stored in the storage unit 110 (the sum of the image bit rate and the audio bit rate value defined by any one of the first to third settings). Calculate Cd. In other words, in FIG. 10, the capacity of the DVD format storage area 34-3 in the free area 34-1 of the HDD 34 is the recording capacity Cd of the DVD 14.
[0164]
Then, the acquisition mode selection unit 171 subtracts the calculated recording capacity Cd of the DVD 14 from the available capacity Ch1 of the HDD 34 checked in the process of step S51, thereby capturing the recording data of the digital video tape 13 in the DV format. Then, a capacity Ch2 (hereinafter referred to as a capture capacity Ch2) that can be temporarily stored in the HDD 34 is calculated. That is, in FIG. 10, the capacity of the DV format storage area 34-2 in the free area 34-1 of the HDD 34 is the capture capacity Ch2.
[0165]
The calculated capture capacity Ch2 is the data amount of all the chapter data to be written to the DVD 14 (the data amount of the DV format digital video tape 13 to be captured from now on. For example, in this example, the acquisition mode selection unit 171 If it is greater than (calculated by itself), in step S52, it is determined that the data of all the chapters to be written on the DVD 14 fit within the free space of the HDD 34.
[0166]
When the acquisition mode selection unit 171 advances the processing to step S53, the batch acquisition unit 175 converts the recording data of the digital video tape 13 from the DV 12 via the i.LINK 45 (FIG. 2) in the DV format in step S53. Collect all (all) as they are, and temporarily store them in the DV format storage area 34-2 of the HDD 34. When the acquisition process by the batch acquisition unit 175 is completed, the format conversion unit 173 converts the DV format video data stored in the DV format storage area 34-2 of the HDD 34 into the DVD format, and stores the DVD format in the HDD 34. It memorize | stores in area | region 34-3. Then, the captured data deletion unit 174 deletes the DV format video data stored in the DV format storage area 34-2 of the HDD 34.
[0167]
Hereinafter, such processing in step S53 is referred to as “automatic acquisition processing”. Details of the “automatic acquisition process” in this example will be described later with reference to the flowcharts of FIGS. 17 and 18.
[0168]
In other words, when the acquisition mode selection unit 171 determines in step S52 that all chapter data written to the DVD fits in the free space of the HDD, the acquisition unit 175 mainly executes the acquisition mode. Select the mode corresponding to "automatic acquisition process".
[0169]
On the other hand, the capture capacity Ch2 (capacity Ch2 of the DV format storage area 34-2 of the HDD 34) is the data of all chapter data (record data of the DV format digital video tape 13 to be captured) written to the DVD 14. If it is smaller than the amount, it is determined in step S52 that the data of all the chapters written to the DVD 14 do not fit in the free space of the HDD 34, and the following steps S54 to S62 are executed. Hereinafter, the processing of steps S54 to S62 is referred to as “batch capture processing” with respect to the “automatic acquisition processing” described above.
[0170]
In other words, the first data amount of the content data in the first format (for example, in this example, “data of all chapters written to the DVD 14” described in step S52 of FIG. 11, that is, the digital video tape 13 Data amount in DV format of recorded data (corresponding description is given in the specification), second data amount of content data in second format (for example, DVD of recorded data on digital video tape 13 in this example) This is the amount of data in the format, and the capacity of the DVD format storage area 34-3 (the amount of data corresponding to the recording capacity Cd of the DVD 14) in the free area 34-1 of the HDD 34 in FIG. The first data amount and the calculated second data amount are added to calculate the first threshold value. In the process of step S52, it is determined whether or not the HDD free capacity (for example, the capacity Ch1 of the free area 34-1 of the HDD 34 in FIG. 10 in this example) is smaller than the calculated first threshold value. As a result of the determination, it is determined whether or not the data of all the chapters written on the DVD can fit in the free space of the HDD.
[0171]
That is, when the acquisition mode selection unit 171 determines in step S52 that all chapter data written to the DVD does not fit in the free space of the HDD, the acquisition mode selection unit 172 executes mainly as the acquisition mode. Select the mode corresponding to the “batch capture process”.
[0172]
Specifically, when execution of the “batch capture process” is selected, first, in step S54, the division acquisition unit 172 determines according to the free capacity of the HDD 34 (capture capacity Ch2 of the DV format storage area 34-2). Thus, the maximum amount of data acquired at one time (hereinafter simply referred to as the maximum amount of data) is calculated. That is, the maximum data amount is set to be equal to or smaller than the capture capacity Ch2 of the DV format storage area 34-2.
[0173]
In step S55, the division acquisition unit 172 performs the processing in step S7 (FIG. 5), the chapters investigated by the survey unit 104 (FIG. 4) and stored in the survey content / setting content storage 110 (FIG. 4). It is determined whether or not there is a chapter having a data amount greater than or equal to the maximum data amount calculated in the process of step S54 among all chapters included in the list (all chapters constituting recording data of the digital video tape 13). To do.
[0174]
If it is determined in step S55 that there is a chapter having a data amount equal to or greater than the maximum data amount, the division acquisition unit 172 determines that a chapter having a data amount equal to or greater than the maximum data amount is not greater than the maximum data amount in the process of step S56. The data is divided into a plurality of divided sections having a predetermined data amount.
[0175]
Specifically, for example, in the process of step S7 (FIG. 5), a part of the recorded content of the digital video tape 13 has a data amount smaller than the maximum data amount as shown in FIG. Suppose that it is investigated that it is composed of a chapter 182 having a data amount larger than the maximum data amount and a chapter 183 having a data amount smaller than the maximum data amount. In other words, it is assumed that chapters 181 to 183 are included in the chapter list stored in the survey content / setting content storage unit 110 (FIG. 4). Each of the data 191 to 196 represents unrecognized data.
[0176]
In this case, it is determined in step S55 (FIG. 11) that there is a chapter 182 having a data amount equal to or larger than the maximum data amount, and in step 56 (FIG. 11), a chapter having a data amount equal to or larger than the maximum data amount is determined. As shown in FIG. 13, 182 is divided into a divided section 182-1 and a divided section 182-2 having a predetermined data amount equal to or less than the maximum data amount.
[0177]
In this case, the chapter list stored in the survey / setting content storage unit 110 (FIG. 4) is also changed. That is, the chapter information of the chapter 182 is deleted, and section information (information corresponding to the chapter information) of each of the divided sections 182-1 and 182-2 is added to the deleted position.
[0178]
At this time, since the unrecognized data 193 exists before the divided section 182-1, the above-mentioned fuzzy flag is added to the head frame of the divided section 182-1 (the head of the chapter 182 before the division). Although the frame ambiguity flag is left as it is, there is no unrecognized data after the divided section 182-1 (the last frame of the divided section 182-1 and the first frame of the divided section 182-2 are continuous). Therefore, the ambiguous flag is not added to the last frame of the divided section 182-1. Similarly, the ambiguous flag is not added to the first frame of the divided section 182-2, but the ambiguous flag is added to the last frame of the divided section 182-2 (the ambiguous flag of the final frame of the chapter 182 before the division). Is left as is).
[0179]
In the example of FIG. 13, an example of being divided into two divided sections is shown. However, the number of divided sections, that is, the number of divided sections divided from one chapter is calculated by the process of step S54. There is no particular limitation as long as it is divided into divided sections of the maximum data amount or less.
[0180]
On the other hand, when it is determined in step S55 of FIG. 11 that there is no chapter having a data amount equal to or larger than the maximum data amount, the process of step S56 is not executed, and the process proceeds to step S57.
[0181]
When it is determined in step S55 that there is no chapter having a data amount equal to or larger than the maximum data amount, or when the process of step S56 is completed, the division acquisition unit 172 in FIG. Based on the chapter list stored in the content storage unit 110 (FIG. 4), the data of the chapter to be acquired next or the data of the divided section is acquired from the DV 12 via the i.LINK 45 (FIG. 2). The data is stored in the DV format storage area 34-2 of the HDD 34.
[0182]
Specifically, for example, it is now assumed that the division acquisition unit 172 has recognized chapters composed of frames of frame numbers 53 to 68 as chapters to be acquired next. Further, the actual recording content of the digital video tape 13 corresponding to the recognized chapter is a recording section 201 composed of frames of frame numbers 50 to 70 as shown in FIG.
[0183]
In this case, as described above, since the data 201-1 and the data 201-3 in the recording section 201 are unrecognized data, the first frame of the chapter recognized by the survey unit 104 (FIG. 4) ( The fuzzy flag described above is added to each of the frame (frame number 53) and the last frame (frame number 68).
[0184]
Therefore, when the division acquisition unit 172 detects the fuzzy flag of the first frame, the division acquisition unit 172 requests the DV control unit 103 (FIG. 4) to perform rewind playback (for example, −1 × speed playback). When the DV control unit 103 receives the request, the DV control unit 103 generates a control signal for instructing “rewind playback” and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2). Control to perform rewind playback.
[0185]
When the rewind playback of the digital video tape 13 is performed (the position of the head 75 (FIG. 3) of the DV 12 is relatively moved from the position shown in FIG. 14 in the direction of the dotted arrow shown in FIG. The playback video signals corresponding to the frames of the frame numbers are sequentially transmitted from the DV 12 while the numbers are returned one by one from the frame number 53.
[0186]
Therefore, the division acquisition unit 172 acquires this playback video signal via the i.LINK 45 (FIG. 2) and investigates whether or not recording start point information is included for each frame. When the division acquisition unit 172 detects the recording start point information, the division acquisition unit 172 next acquires a frame including the detected recording start point information (in this case (in the case of FIG. 15), frame number 50). Update as the first frame of the chapter (update the chapter list stored in the survey / setting content storage unit 110).
[0187]
Then, the division acquisition unit 172 requests the DV control unit 103 (FIG. 4) to perform playback at the normal speed from the updated first frame (frame number 50). When the DV control unit 103 receives the request, the DV control unit 103 generates a control signal for instructing “normal (1 ×) playback” and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2). Controls normal playback of the video tape 13.
[0188]
When normal playback of the digital video tape 13 is performed (when the position of the head 75 (FIG. 3) of the DV 12 is relatively moved in the direction of the dotted arrow shown in FIG. 16), the frame number 50 (actually, The playback video signals corresponding to the frames of the frame numbers are sequentially transmitted from the DV 12 while the numbers advance one by one from the frame number slightly before that.
[0189]
Therefore, the division acquisition unit 172 starts acquiring the playback video signal via i.LINK 45 (FIG. 2). In this case (in the case of FIG. 16), the DV format of the HDD 34 can be stored from the frame of frame number 50. When the processing to be stored in the area 34-2 is started and an ambiguous flag is detected (in this case (in the case of FIG. 16), when a frame with frame number 68 is acquired), a frame including the next recording end point information (recording start point) The frame immediately before the frame including the point information is stored in the DV format storage area 34-2 of the HDD 34 until the current frame (in the case of FIG. 16), the frame of frame number 70). The DV control unit 103 (FIG. 4) is requested to stop the acquisition process and stop normal playback. When the DV control unit 103 receives the request, the DV control unit 103 generates a control signal for instructing “stop” and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2). Controls playback stop.
[0190]
If the ambiguous flag is not included, the above-described rewinding process or the like is not performed, and the first frame to the last frame included in the chapter list are simply reproduced and recorded in the PC 11.
[0191]
In this way, the division acquisition unit 172 can acquire the recorded content of the digital video tape 13 from the DV 12 without omission by the method described above (the method shown in FIGS. 14 to 16).
[0192]
That is, for example, if the division acquisition unit 172 is merely based on the chapter list stored in the survey content / setting content storage unit 110 (FIG. 4), the actual recorded content of the digital video tape 13 shown in FIG. If the data of the recording section 201 is to be acquired as chapter data, only the data 201-2 detected in the scan process of step S7 (FIG. 5) is registered as a chapter in the chapter list. The division acquisition unit 172 can acquire only the data 201-2 corresponding to the chapter detected by scanning in the recording section 201 (acquires unrecognized data 201-1 and unrecognized data 201-3). Can not do it).
[0193]
On the other hand, since the division acquisition unit 172 of this example performs the data acquisition process by the above-described method (method shown in FIGS. 14 to 16), the entire recording section 201 is surely set as the chapter data 204. It becomes possible to get to.
[0194]
By the way, the chapter data stored in the DV format storage area 34-2 of the HDD 34 remains in the DV format. In the DV format, one frame is defined as 120,000 [bytes] and the frame rate is defined as 29.97 [frames / second]. Therefore, the data amount of the digital video tape 13 per second is 3596400 [bytes / second]. ] (= 120000 [bytes / frame] * 29.97 [frames / second]), when converted to 1 minute, it becomes 215784000 [bytes] (215.79 MB).
[0195]
In contrast, in the DVD format, for example, the MPEG-2 format in this example, as described above, the maximum bit rate of the image is set to 8 M [bps] (set by the bit rate setting unit 106 (FIG. 4)). Therefore, the maximum data amount per minute is 60 MB, which is less than about one-third of the DV format.
[0196]
Therefore, in step S58 of FIG. 11, the format conversion unit 173 acquires the DV format data (chapter data) acquired by the division acquisition unit 172 in the process of step S57 and stored in the DV format storage area 34-2 of the HDD 34. Or the data of the divided section) is converted into the DVD format and stored in the DVD format storage area 34-3 of the HDD 34. In step S59, the captured data deletion unit 174 acquires the DV format data acquired by the division acquisition unit 172 in the process of step S57 and stored in the DV format storage area 34-2 of the HDD 34 (the process of step S58). Then, the format conversion unit 173 deletes the DV format data corresponding to the DVD format data stored in the DVD format storage area 34-3 of the HDD 34.
[0197]
In step S60, the format conversion unit 173 converts to the DVD format in the process of step S58, and whether or not the recording end point (information) is included in the data stored in the DVD format storage area 34-3 of the HDD 34. Determine whether.
[0198]
That is, when the video data stored in the DVD format storage area 34-3 of the HDD 34 in the process of step S58 is data other than the last divided section among the divided sections divided in the process of step S56, Since the video data does not include a frame including the recording end point information, it is determined in step S60 that the stored data does not include the recording end point, and the process proceeds to step S62.
[0199]
In contrast, the video data stored in the DVD format storage area 34-3 of the HDD 34 in the process of step S58 is the data of the last divided section among the divided sections divided in the process of step S56. If the data is a chapter data that has not been divided, it is determined in step S60 that the stored data includes the recording end point, and the format conversion unit 173 sets the chapter in step S61. .
[0200]
That is, when the video data stored in the DVD format storage area 34-3 of the HDD 34 is the data of the last divided section of the divided sections divided in the process of step S56, the format conversion unit 173 The other divided sections stored in the DVD format storage area 34-3 of the HDD 34 and the last divided section are merged and stored (overwritten) in the DVD format storage area 34-3 of the HDD 34 as chapter data. The chapter list stored in the content / setting content storage unit 110 (FIG. 4) is also updated.
[0201]
When the data stored in the DVD format storage area 34-3 of the HDD 34 is chapter data that is not divided, the format conversion unit 173 simply checks the survey content / setting content storage unit 110 (FIG. 4). Update the chapter list stored in. For example, when the data stored in the DVD format storage area 34-3 of the HDD 34 is the chapter data 204 of FIG. 16, as described above, the frame number of the first frame of the chapter list is the value of the process of step S57. In the stage, it is updated from 53 to 50. However, since the frame number of the last frame of the chapter list remains 68, it is updated to 70 in the process of step S61.
[0202]
Returning to FIG. 11, when it is determined in the process of step S60 that the recording end point is not included in the stored data, or when the process of step S61 is ended, the division acquisition unit 172 performs step S62. In FIG. 5, it is determined whether or not all chapter data written in the DVD 14 (data of all chapters included in the chapter list) has been acquired from the DV 12.
[0203]
If it is determined in step S62 that all the chapter data to be written to the DVD 14 has not been acquired from the DV 12, the process returns to step S57, and the subsequent processes are repeated. That is, the chapter data to be acquired next or the data of the divided section is captured in the DV format, stored in the DV format storage area 34-2 of the HDD 34, and then converted into the DVD format. When the data is stored in the DVD format storage area 34-3, the DV format data stored in the DV format storage area 34-2 of the HDD 34 is deleted.
[0204]
Then, the processes in steps S57 to S62 are repeated, and when the last chapter data is stored in the DVD format storage area 34-3 of the HDD 34, in step S62, all the chapter data written to the DVD 14 is stored. , It is determined that it has been acquired from the DV 12, and the process is terminated.
[0205]
As described above, the acquisition unit 105 (FIGS. 4 and 10) can execute the “batch capture process” of the “digital video tape recording data acquisition process”, and thus has the following effects. It becomes possible to play.
[0206]
That is, conventionally, the following two methods have been known as methods for capturing video data from a digital video tape 13 mounted on the DV 12 to a PC or the like.
[0207]
That is, in the first method, after the user operates the DV 12 to move the digital video tape 13 to the capture start position desired by the user himself / herself, the PC 12 starts the capture and at the same time the DV 12 causes the digital video tape to 13 is executed, and when the necessary portion has been captured, the PC capture processing is stopped and the DV 12 is caused to execute the digital tape 13 stop processing.
[0208]
In the second method, the user operates the DV 12 to move the digital tape 13 to the desired capture start position of the user, and then causes the PC to register the position as the capture start position. In this method, the DV 12 is operated to move the digital tape 13 to the capturing stop position, and then the PC is registered as the capturing end position, and then the capturing process is executed.
[0209]
However, in the first method, the user does not manually divide the capture range by dividing the capture range while confirming the free capacity of the auxiliary storage device (PC HDD, etc.) during the capture of the data. There is a problem that it is difficult to determine which range (length) should be divided. Furthermore, in the first method, it is very difficult to control the joints of the divided parts thus divided. Even if the control of the joints of the divided data is executed, the joints are not easily controlled. The data connected by the control has a problem that the same data is duplicated or data is missing.
[0210]
Further, in the second method, it is somewhat easier to execute the control of the joints of the divided portions than in the first method, but the setting of the range (length) to be divided is the same as in the first method. However, it is still a very difficult task, and it has been a problem that it takes a long time to specify each division point.
[0211]
In contrast, the PC 11 (FIG. 2) of the present invention can execute “batch capture processing” as one function of the data acquisition / DVD writing unit 91 (FIG. 4).
[0212]
In other words, even when it is impossible to collect data written on the DVD 14 (recorded data of the digital video tape 13) in a batch, the user does not perform any special operation (just connect the DV 12 to the PC 11). Then, just by turning on the power of the DV 12), the following processing is performed, and the recording data of the digital video tape 13 is automatically taken into the PC 11.
[0213]
In other words, in an information processing apparatus that acquires content data recorded in the first format, a storage unit that stores content data, a calculation unit that calculates the free capacity of the storage unit, and a storage unit that is calculated by the calculation unit An acquisition means for controlling the content data to be divided into a plurality of section data on the basis of the free space and acquiring predetermined first section data out of the plurality of section data and storing it in the storage means And converting the format of the first section data acquired by the acquisition means and stored in the storage means from the first format to the second format, so that the second data amount is smaller than the first section data. The section data is generated, the generated second section data is stored in the storage means, and the first section data is converted by the conversion means. When the mat is converted and the generated second section data is stored in the storage unit, the third section data different from the first section data among the plurality of section data constituting the content data. Before the acquisition means acquires the first section data stored in the storage means.
[0214]
That is, the recording data of the digital video tape 13 is divided into a plurality of data (chapter data or divided data), and each of the divided data is divided and acquired sequentially, and the DV of the HDD 34 is acquired. After being temporarily stored in the format storage area 34-2, converted to the DVD format and stored in the DVD format storage area 34-3 of the HDD, the corresponding DV format storage area 34-2 of the HDD 34 The DV format data stored in is deleted.
[0215]
As described above, even when the HDD 34 has a small free space and it is impossible to batch-record data recorded on the digital video tape 13 (data written to the DVD 14), all the recorded data on the digital video tape 13 is recorded. Can be imported. That is, the user can cause the PC 11 to capture all of the recording data of the digital video tape 13 inserted into the DV 12 in a short time without worrying about the free capacity of the auxiliary storage device (HDD 34). It becomes possible. In addition, even when such a “batch capture process” is performed, the digital video tape 13 does not cause an error such that a part of data is taken in duplicate or a part of data is not taken in. All of the recorded data is reliably and accurately captured.
[0216]
Therefore, the acquisition unit 105 performs the “batch capture process”, thereby achieving the effect of solving the conventional problem of capturing the recording data of the digital video tape 13 from the DV 12 to the PC or the like. It becomes possible.
[0217]
The “batch capture process (the processes of steps S54 to S62)” of the “digital video tape recording data acquisition process” has been described above with reference to the flowchart of FIG. Next, the “automatic acquisition process” of the “digital video tape recording data acquisition process” will be described.
[0218]
As described above, if it is determined in step S52 that the data of all the chapters written on the DVD 14 can be accommodated in the free space of the HDD 34, the “automatic acquisition process” is executed in step S53.
[0219]
Details of the “automatic acquisition process” in this example are shown in the flowcharts of FIGS. 17 and 18. The details of the “automatic acquisition process” in this example will be described with reference to the flowcharts of FIGS. 17 and 18.
[0220]
First, in step S81 of FIG. 17, the collective acquisition unit 175 of FIG. 10 stores the data from the capture start position (the first frame of the first chapter included in the chapter list stored in the survey content / setting content storage unit 110). It is determined whether or not acquisition is possible. That is, the collective acquisition unit 175 determines whether or not the current position of the digital video tape 13 mounted on the DV 12 coincides with the capture start position (actually, a position slightly before the capture start position). To do.
[0221]
If it is determined in step S81 that acquisition of data from the capturing start position is impossible (when it is determined that it is not possible), the collective acquisition unit 175 performs digital video based on the capturing start position in step S82. Fast forward or rewind of the tape 13 is performed.
[0222]
That is, the collective acquisition unit 175 performs fast-forwarding when the current position of the digital video tape 13 is before the capturing start position, and rewinds when the current position is after the capturing start position. Request to the DV control unit 103 (FIG. 4). Upon receiving the request, the DV control unit 103 generates a control signal instructing “fast forward” or “rewind”, and transmits the generated control signal to the DV 12 via the i.LINK 45 (FIG. 2). Thus, the DV 12 controls the fast-forwarding or rewinding of the digital video tape 13.
[0223]
Specifically, for example, if the batch acquisition unit 175 acquires the recording data recorded from the head position of the digital video tape 13, the batch acquisition unit 175 reaches the head position of the digital video tape 13. Is requested to the DV control unit 103. Upon receiving the request, the DV control unit 103 generates a control signal for instructing “rewinding”, and transmits the generated control signal to the DV 12 via the i.LINK 45 so that the DV 12 13 to control rewinding.
[0224]
Then, when the collective acquisition unit 175 detects that the rewinding to the top position of the digital video tape 13 is completed, the data acquisition is started in step S83, and the digital video tape 13 is reproduced in step S84.
[0225]
Specifically, the collective acquisition unit 175 requests the DV control unit 103 (FIG. 4) to reproduce at the normal speed. When the DV control unit 103 receives the request, the DV control unit 103 generates a control signal instructing “normal playback” and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2). Controls normal playback. When normal reproduction of the digital video tape 13 is performed, the reproduced video data (reproduced video signal) is sequentially transmitted in order from the video data corresponding to the capture start position.
[0226]
Accordingly, the collective acquisition unit 175 sequentially acquires the video data via the i.LINK 45 (FIG. 2), and stores the acquired video data in the DV format storage area 34-2 of the HDD 34.
[0227]
In step S85, the batch acquisition unit 175 determines whether a recording start point is detected.
[0228]
When the recording start point is detected in step S85, that is, when the frame including the recording start point information is acquired, the batch acquisition unit 175 determines the recording start time (the shooting time information (year information included in the frame (year)) in step S86. , Month, day, hour, minute, and second)).
[0229]
When the recording start point is not detected in step S85 (when it is determined that the recording start point is not detected), or when the process of step S86 ends, the collective acquisition unit 175 detects the recording end point in step S87. Determine whether or not.
[0230]
When the recording end point is detected in step S87, that is, when the frame including the recording end point information is acquired, the batch acquisition unit 175, in step S88, records the recording end time (the shooting time information (year information included in the frame)). , Month, day, hour, minute, and second))) and set the chapter.
[0231]
That is, as described above, the chapters included in the chapter list stored in the survey content / setting content storage unit 110 (FIG. 4) are the steps of all the frames included in the recording data of the digital video tape 13. In the process of S7 (FIG. 5), it is created only from the frames scanned by fast-forward playback (for example, see FIG. 6 described above). Accordingly, the collective acquisition unit 175 detects the actual recording start point and the recording end point that appears next in the processing of steps S85 to S88, sets the recording interval between them as a chapter, and records the chapter. Chapter information including the start time and the recording end time is generated, and the chapter list stored in the survey content / setting content storage unit 110 (FIG. 4) is updated.
[0232]
In step S89 in FIG. 18, the overlap monitoring unit 176 uses the batch acquisition unit 175 to acquire the time of the frame acquired now (the shooting time information (year, month, day included in the first frame reproduced by the DV 12). , Hour, minute, and second)) is the time of the frame acquired immediately before (the shooting time information (year, month, day, included in the second frame reproduced by the DV 12 immediately before the first frame). Determine whether the time is older than hours, minutes, and seconds)).
[0233]
That is, when the time of the frame acquired by the batch acquisition unit 175 is older than the time of the frame acquired immediately before, the first video data composed of the frames after the frame acquired now The second video data composed of a frame before the immediately preceding frame is not directly related data, and the first video data is data temporally previous to the second video data. ing. That is, this indicates that new second video data (video data to be acquired this time) has been overwritten on the first video data recorded in the past.
[0234]
Therefore, in step S89, if the collective acquisition unit 175 determines that the time of the frame acquired now is older than the time of the frame acquired immediately before, the overlap monitoring unit 175 has been acquired so far. It is determined that the reproduction of the received second video data (to be captured) has been completed, and the batch acquisition unit 175 is instructed to stop the acquisition process.
[0235]
When the collective acquisition unit 175 receives this stop command, the acquisition of data is stopped in step S92, and the digital video tape 13 is stopped in step S93.
[0236]
That is, the collective acquisition unit 175 requests the DV control unit 103 (FIG. 4) to stop normal playback. Upon receiving this request, the DV control unit 103 generates a control signal for instructing “stop”, and transmits the control signal to the DV 12 via the i.LINK 45 (FIG. 2), so that the DV 12 stops the digital video tape 13. Control what to do.
[0237]
As described above, by the processing of the overlap monitoring unit 176, the acquisition unit 105 starts from the digital video tape 13 in which the second video data to be captured this time is overwritten on the first video data recorded in the past. In addition, it is possible to reliably acquire only the second video data to be captured.
[0238]
On the other hand, if the collective acquisition unit 175 determines in step S89 that the time of the currently acquired frame is not older than the time of the frame acquired immediately before, the overlap monitoring unit 176 It is determined that the second video data acquired (to be captured) has not yet been completed, and the unrecorded area monitoring unit 177 is an unrecorded area for a certain period of time in step S90. It is determined whether or not.
[0239]
That is, when an unrecorded area continues for a certain period of time (when it is determined that it is an unrecorded area for a certain period of time in step S90), the unrecorded area monitoring unit 177 has been acquired so far ( Assuming that the second video data (to be captured) is not recorded in the subsequent part (assuming that the reproduction of the second video data is finished), the batch acquisition unit 175 receives the acquisition process. Command to stop.
[0240]
When the batch acquisition unit 175 receives the stop designation, the batch acquisition unit 175 stops the data acquisition in step S92 and stops the digital video tape 13 in step S93.
[0241]
As described above, by the processing of the unrecorded area monitoring unit 177, the acquiring unit 105 can detect the tape end even if the second video data to be captured this time is not recorded up to the tape end of the digital video tape 13. It is possible to surely acquire only the second video data to be captured without reproducing the image. Therefore, the capture time can be shortened.
[0242]
On the other hand, when it is determined in step S90 that the unrecorded area does not continue for a certain time, the unrecorded area monitoring unit 177 stores the second video data (to be captured) that has been acquired so far. The tape end monitoring unit 178 determines whether or not the tape has been played up to the tape end of the digital video tape 13 in step S91.
[0243]
If it is determined in step S91 that the playback has not been completed up to the tape end of the digital video tape 13, the process returns to step S85 (FIG. 17), and the subsequent processes are repeated. That is, the data acquisition process by the collective acquisition unit 175 is continued until it is determined that the second video data acquired (to be captured) has been completed.
[0244]
On the other hand, when it is determined that the digital video tape 13 has been played to the tape end, the batch acquisition unit 175 is instructed to stop the acquisition process.
[0245]
When the collective acquisition unit 175 receives this stop command, the acquisition of data is stopped in step S92, and the digital video tape 13 is stopped in step S93.
[0246]
In this way, when the data acquisition process by the batch acquisition unit 175 is completed (when the process of step S93 is completed), the format conversion unit 173 is acquired by the batch acquisition unit 175 in step S94, and the DV of the HDD 34 The DV format video data stored in the format storage area 34-2 is converted into a DVD format (in this example, MPEG-2 format) and stored in the DVD format storage area 34-3 of the HDD 34. In step S95, the acquired data deletion unit 174 deletes the DV format data acquired by the batch acquisition unit 175 and stored in the DV format storage area 34-2 of the HDD 34, and the process is returned.
[0247]
As described above, since the acquisition unit 105 can execute the “automatic acquisition process” of the “digital video tape recording data acquisition process”, the following effects can be obtained.
[0248]
That is, as described in the “batch capture processing” effect, the following two methods have been known as methods for capturing video data from a digital video tape 13 mounted on the DV 12 to a PC or the like.
[0249]
That is, in the first method, after the user operates the DV 12 to move the digital video tape 13 to the capture start position desired by the user himself / herself, the PC 12 starts the capture and at the same time the DV 12 causes the digital video tape to 13 is executed, and when the necessary portion has been captured, the PC capture processing is stopped and the DV 12 is caused to execute the digital tape 13 stop processing.
[0250]
In the second method, the user operates the DV 12 to move the digital tape 13 to the desired capture start position of the user, and then causes the PC to register the position as the capture start position. In this method, the DV 12 is operated to move the digital tape 13 to the capture stop position, register the PC as the capture end position, and then cause the PC to execute the capture process.
[0251]
However, in the first method, the user must manually operate the DV 12 to execute the rewinding, stopping, and reproduction processing of the digital tape 13, and the PC of the recording data of the digital tape 13 is executed. During the capture, there is a problem that the video captured by the user must be monitored.
[0252]
Of course, the user can also capture the video tape until the tape end of the digital tape 13 without monitoring the video. However, in this case, for example, if the second video data to be captured this time is overwritten on the first video data recorded in the past on the digital video tape 13, for example, the digital video tape 13 From No. 13, not only the second video data that the user wants to capture but also the first video data that is unnecessary (the user does not intend to capture) is recorded, and even the tape end is recorded. An unrecorded digital videotape captures an unnecessary unrecorded area (undata), resulting in a problem that the capture time is longer than necessary.
[0253]
Also in the second method, operations such as movement of the digital video tape 13 to the start position or end position of capture, and confirmation and registration thereof require manual operations by the user (manual operation of the DV 12). As a result, there is a problem that the operation takes a long time.
[0254]
On the other hand, the PC 11 (FIGS. 1 and 2) of the present invention can execute an “automatic acquisition process” as one function of the data acquisition / DVD writing unit 91 (FIG. 4). That is, no matter what state the recorded data of the digital video tape 13 is, the user does not perform any special operation (just connect the DV 12 to the PC 11 and turn on the DV 12). However, only the desired video data is automatically captured, and when the capture is completed, the capture process itself is immediately stopped.
[0255]
In other words, the PC 11 obtains predetermined content data composed of a plurality of frames reproduced by a predetermined reproduction device, and time information included in each of the plurality of frames reproduced by the reproduction device. Of these, the recording time at which the frame is recorded is monitored, and the second frame in which the recording time of the currently monitored first frame of the plurality of frames is monitored before the first frame in time. And acquisition stop control means for controlling to stop acquisition processing of content data by the acquisition means when the recording time is older than the recording time.
[0256]
That is, even if the second video data to be captured this time is superimposed on the past first video data (first video data that does not need to be captured), Only the second video data to be captured can be reliably captured without capturing the video data.
[0257]
In addition, the PC 11 monitors the playback content of the playback device for acquiring the predetermined content data to be played back by the predetermined playback device, and if the recorded data of the content data is not played back for a predetermined time or more, the acquisition means And acquisition stop control means for controlling to stop the content data acquisition process according to the above.
[0258]
As described above, the acquisition unit 105 can solve the conventional problem with the capture of the recording data of the digital video tape 13 from the DV 12 to the PC or the like by executing the “automatic acquisition process”. It becomes possible to play.
[0259]
In the “batch capture process”, steps S89 to S91 in FIG. 18 are inserted instead of step S62 in FIG. 11, so that the same effect as the “automatic acquisition process” described above can be obtained. Become. However, in this case, if it is determined as YES in any of steps S89 to S91, the process is returned. If it is determined as NO in step S91, the process is: Returning to step S57, the subsequent processing is repeated. In other words, as indicated by the dotted line of the arrow in FIG. 10, each of the overlap monitoring unit 176, the unrecorded area monitoring unit 177, and the tape end monitoring unit 178 receives not only the batch acquisition unit 175, It is also possible to output to the division acquisition unit 172.
[0260]
Next, details of the “chapter registration process” in this example will be described with reference to the flowchart of FIG.
[0261]
First, in step S111, the menu creation unit 107 in FIG. 4 selects a specified time. As the specified time, a time set by the user is selected. The user can set an arbitrary time, but in this example, it is assumed that the time is set from, for example, 10 minutes, 30 minutes, and one day (24 hours) for the sake of simplicity. Details of the specified time will be described later.
[0262]
In step S112, the menu creation unit 107 sets the target chapter to all chapters included in the chapter list updated in the process of step S9 (FIG. 5) (recorded data of the digital video tape 13 acquired in the process of step S9). Is set to the first chapter (first chapter) among all the chapters that constitute.
[0263]
In the description of “chapter registration processing”, a chapter to be processed is referred to as a target chapter in order to distinguish it from other chapters.
[0264]
In step S113, the menu creation unit 107 records the recording start time of the chapter registered immediately before in the chapter menu (the shooting time information (year and year) included in the first frame of the chapter registered in step S114 immediately before that point. Month, day, hour, minute, and second)) and the recording start time of the target chapter (shooting time information (year, month, day, hour, minute, and second) included in the first frame of the target chapter)) It is determined whether or not the interval is equal to or longer than the specified time selected in step S111.
[0265]
In step S113, when it is determined that the time interval between the recording start time of the previous chapter registered in the chapter menu and the recording start time of the target chapter is equal to or longer than the specified time, the menu creation unit 107 performs step S114. The target chapter is registered in the chapter menu. That is, in this case, the target chapter is a chapter displayed in the chapter menu.
[0266]
On the other hand, in step S113, when the time interval between the recording start time of the previous chapter registered in the chapter menu and the recording start time of the target chapter is less than the specified time (determined not to be the specified time or more). In such a case, the menu creation unit 107 does not register the target chapter in the chapter menu (without executing the process of step S114), and advances the process to step S115.
[0267]
In this case, or when the process of step S114 is completed, the menu creation unit 107 determines in step S115 whether the target chapter is the last chapter.
[0268]
If it is determined in step S115 that the target chapter is not the final chapter, the menu creation unit 107 sets the next chapter as the target chapter in step S116, returns the processing to step S113, and performs the subsequent processing. repeat.
[0269]
That is, for each of all the chapters included in the chapter list updated in the process of step S9 (FIG. 5) (all the chapters constituting the recording data of the digital video tape 13 acquired in the process of step S9). For each chapter, it is determined whether or not the condition of step S113 is satisfied, and among the chapters, chapters that satisfy the condition of step S113 are registered in the chapter menu (displayed in the chapter menu). Will be registered as chapters).
[0270]
Then, when the process of determining whether or not the last chapter is the target chapter and is registered in the chapter menu (the process of step S113 and the process of step S114 as necessary) is performed, in step S115 The target chapter is determined to be the final chapter, and the process is returned.
[0271]
A specific example of the “chapter registration process” will be described with reference to FIGS.
[0272]
That is, as described above, the specified time is variable, and in this example, it is selected from 10 minutes, 30 minutes, and 1 day (24 hours). 20 shows an example when the specified time is selected as 10 minutes, FIG. 21 shows an example when the specified time is selected as 30 minutes, and FIG. 22 shows a case where the specified time is selected as 1 day. Each example is shown.
[0273]
For example, as shown in FIG. 20, it is assumed that there is video data in which chapters 211 to 217 are arranged in that order (reproduced in that order). In the figure, the numerical value written in the upper left of each of the chapters 211 to 217 represents the recording start time of that chapter (the time of the first frame of that chapter). The numerical value described in the upper right of each represents the recording end time of that chapter (the time of the last frame of that chapter). For example, the time of the recording start point of chapter 211 is 10:00 (10:00), and the time of the recording end point is 10:08 (10: 8).
[0274]
In this case, first, the chapter 211 is set as the target chapter. At that time, there is no chapter registered in the chapter menu 221-1 yet. In such a case, the chapter 211 is registered in the chapter menu 221-1. That is, the first chapter among the chapters constituting the video data is automatically registered in the chapter menu.
[0275]
Next, when the chapter 212 next to the chapter 211 is set as the target chapter, the time 10:00 of the recording start point of the chapter 211 registered in the DVD menu 221-1 immediately before, and the target chapter 212 Since the time interval (10 minutes) from the recording start time 10:10 is equal to or longer than the specified time (10 minutes), the chapter 212 is registered in the chapter menu 221-1.
[0276]
Thereafter, the same processing is repeated, and the chapter 213 is also registered in the chapter list 221-1. This time, when the next chapter 214 of the chapter 213 is set as the target chapter, it is registered in the DVD menu 221-1. The time interval (4 minutes) between the recording start time 10:35 of the previous chapter 213 and the recording start time 10:39 of the target chapter 214 is less than the specified time (10 minutes). The chapter 214 is not registered in the chapter menu 221-1, and the chapter 215 is set as the target chapter.
[0277]
Thereafter, the above-described processing is repeated up to the final chapter 217, and finally a chapter menu 221-1 as shown in FIG. 20 is generated.
[0278]
That is, the chapter 215 has a time interval (7 minutes) between the time 10:35 of the recording start point of the previous chapter 213 registered in the DVD menu 221-1 and the time 10:42 of the recording start point of the chapter 215. ) Is less than the specified time (10 minutes), it is not registered in the chapter menu 221-1.
[0279]
On the other hand, the chapter 216 has a time interval between the recording start time 10:35 of the previous chapter 213 registered in the DVD menu 221-1 and the recording start time 11:30 of the chapter 216. Since (55 minutes) is the specified time (10 minutes) or more, it is registered in the chapter menu 221-1.
[0280]
Similarly, the chapter 217 has a time interval (30) between the time 11:30 of the recording start point of the previous chapter 216 registered in the DVD menu 221-1 and the time 12:00 of the recording start point of the chapter 216. Minutes) is equal to or longer than the specified time (10 minutes), and is registered in the chapter menu 221-1.
[0281]
As described above, the specified time is variable, and an arbitrary time can be set in the process of step S111 (FIG. 19). For example, in FIG. 20, the specified time is 10 minutes, but when the specified time is 30 minutes, the same video data (video data composed of chapters 211 to 217) as in FIG. A chapter menu 221-2 as shown in FIG. 21 is generated.
[0282]
When the chapter menu 221-1 in FIG. 20 is compared with the chapter menu 221-2 in FIG. 21, the chapter menu 212 registered in the chapter menu 221-1 in FIG. You can see that it is not registered. This is because, in chapter 212, the time interval between the time 10:00 of the recording start point of the previous chapter 211 registered in the DVD menu 221-1 and the time 10:10 of the recording start point of the target chapter 212 is If it is 10 minutes and the specified time is 10 minutes as shown in FIG. 20, the condition of step S113 (FIG. 11) is satisfied, but if the specified time is 30 minutes as shown in FIG. This is because the condition of step S113 is not satisfied.
[0283]
Furthermore, the specified time is not limited to an arbitrary time, but can also be set in units such as one day, one week, one month, or one year (units different from units expressed in seconds, minutes, or hours). Is possible.
[0284]
However, when these units are set, the unit separator is the date boundary. This date boundary may simply be fixed at midnight. However, due to recent lifestyle changes, there are many cases where an event continues from 0:00 to midnight from the previous day until the next day. If it is divided by, a problem that one event is divided occurs. Therefore, in this example, for example, any time can be set at the boundary between dates. That is, the date boundary may be set in advance by the designer, but in this example, for example, any time can be set by the user.
[0285]
Thus, when the specified time is a date (one day), as shown in FIG. 22, the first chapter among the chapters on the same day (for example, the chapter 231 of 7/1 and the chapter 232) , The first chapter 231) is registered in the chapter menu 241. That is, in the chapter menu 241, the first chapter 231 of 7/1, the first chapter 233 of 7/2, the first chapter 234 of 7/3, and the first chapter 235 of 7/4 are registered.
[0286]
In this example, for example, as shown in chapter 234, even if the end time of the chapter exceeds the time of the above-mentioned date boundary, continuous recording (from the recording start point to the recording end point). In the case of video recording, the data is divided at the date boundary and the data after the date boundary is not handled as the first chapter of the next day, but is treated as one chapter. That is, the next chapter (in this case, chapter 235) is handled as the first chapter of the next day and registered in the chapter menu.
[0287]
As described above, the chapter menu creation unit 107 (FIG. 4) can execute the “chapter menu registration process”, so that the following effects can be obtained.
[0288]
That is, in the past, when video data (recorded data on the digital video tape 13) taken by the DV 12 is recorded on a DVD, it is possible to cause the PC to create a chapter menu of the corresponding DVD menu. .
[0289]
However, in the conventional case, the PC registers the chapter specified by the user's manual operation in the chapter menu, or registers all the chapters constituting the captured video data in the chapter menu. For this reason, there is a problem that it takes a long time to create the chapter menu, and there is a problem that unnecessary chapters are registered in the DVD menu.
[0290]
For example, as in this embodiment, when a recording section from a recording start point to a recording end point is a chapter, one video data (video data recorded on the DVD 14) is composed of a very large number of chapters. Therefore, when all of these many chapters are registered in the chapter menu, it takes time to create the chapter menu, and it is difficult for the user to search for a desired chapter from the created chapter menu. Become.
[0291]
There is also a method of creating chapter menus by simply dividing continuous video data at predetermined time intervals. In this method, chapters registered in the chapter menu are not necessarily created for each event. Therefore, it has been difficult to automatically create a chapter menu desired by the user using this method.
[0292]
On the other hand, in the PC 11 (FIGS. 1 and 2) of the present invention, a “chapter registration process” is provided as one function of the data acquisition / DVD writing unit 91 (FIG. 4). That is, the user does not need to perform any special operation (simply simply connect the DV 12 to the PC 11 and turn on the DV 12), and the chapter menu is automatically displayed based on the recording start information (recording start point). Therefore, the chapter menu can be automatically created without the user's work.
[0293]
In other words, when the predetermined content data is divided into a plurality of sections, the PC 11 creates a table of contents representing the recording order of the sections of the content data, with the predetermined section of the plurality of sections as an item. A processing device, wherein each of a plurality of sections is sequentially set as a target section in the order of recording of the sections, and the recording start time of the section previously registered as a table of contents item and the recording of the set target section When the time interval with the start time is equal to or longer than a predetermined time, a table of contents creating means for creating a table of contents by repeating the process of registering the target section as a table of contents item is provided.
[0294]
Thus, since the chapter menu is generated based on the shooting start time between chapters, it is possible to create a chapter menu at every predetermined shooting event interval. In particular, when each competition of athletic meet is taken as a shooting event, when each of the first party and the second party of a wedding is taken as a shooting event, or when the first half and the second half of soccer are each taken as a shooting event, etc. In this case, the effect of the “chapter registration process” in this example is particularly remarkable.
[0295]
Therefore, the menu creation unit 107 can achieve the effect of solving the above-described conventional problem with the creation of the chapter menu by executing the “chapter menu registration process”.
[0296]
As described above, the information processing system 1 of FIG. 1 has been described as an example of the embodiment of the present invention, but the embodiment is not limited to the example of FIG. 1, and various embodiments are taken. It is possible.
[0297]
For example, the connection method between the PC 11 and the DV 12 is not particularly limited as long as the above-described series of processing is possible.
[0298]
Specifically, for example, as shown in FIG. 23, the PC 11 and the DV 12 may be connected by connecting the cradle 301 to the PC 11 and placing the DV 12 on the cradle 301. That is, in this case, when the cradle 301 is connected instead of the cable 15 (FIG. 1) and the DV 12 is placed on the cradle 301, the i.LINK 45 (FIG. 2) of the PC 11 and the i.LINK 78 (FIG. 3) of the DV 12 are Connected.
[0299]
Alternatively, for example, as shown in FIG. 24, the PC 11 and the DV 12 may be connected to each other via a network 311 including the Internet.
[0300]
Further, the information processing apparatus to which the present invention is applied is not limited to the form of a PC, and can take various embodiments. For example, the information processing apparatus is an optical drive device 321 as shown in FIG. May be.
[0301]
The configuration of the optical drive device 321 is not particularly shown, but it basically has only to have the same function as the DVD-R / RW drive 36 of FIG. 2 described above. However, in this case, the optical drive device 321 receives the software program (capture / DVD writing unit 91 (FIG. 4)) for executing the above-described series of processing and the recording data of the digital video tape 13 supplied from the DV 12. A memory to be stored (for example, a hard disk such as the HDD 34 in FIG. 2), a CPU for executing the program (for example, a CPU such as the CPU 21 in FIG. 2), and parameters and data for executing the program are temporarily stored. A memory (for example, RAM, etc.) and i.LINK for transmitting and receiving data to and from the DV 12 are also required.
[0302]
Alternatively, a software program (capture / DVD writing unit 91 (FIG. 4)) that executes the above-described series of processes may be installed in the DV 12 itself.
[0303]
By the way, when a series of processing is executed by software, various functions are executed by installing a computer in which the program constituting the software is incorporated in dedicated hardware or by installing various programs. For example, it is installed from a recording medium in a general-purpose personal computer or the like.
[0304]
As shown in FIG. 2, the recording medium is distributed to provide a program to the user separately from the personal computer, and a magnetic disk (including a flexible disk) on which the program is recorded, an optical disk (CD-ROM) (Including Compact Disc-Read Only Memory), DVD (Digital Versatile Disc), magneto-optical disk (including MD (Mini-Disc) (registered trademark)), or removable recording medium 49 (package media) such as semiconductor memory ), Or a hard disk including the HDD 34 or the ROM 34 that stores the program and is provided to the user in a state of being pre-installed in the computer.
[0305]
The series of processes described above can be executed by software, but can also be executed by hardware. In this case, the information processing apparatus has hardware corresponding to the capture / DVD writing unit 91 as shown in FIG.
[0306]
In this specification, the steps for describing the program provided by the medium are performed in parallel or individually in accordance with the described order, as well as the processing performed in time series, not necessarily in time series. The process to be executed is also included.
[0307]
In the above-described example, the DV12 format has been described as an example, and thus a frame is used. However, a field may be used. In this specification, such a frame (frame or field) is used. ) Is also referred to as an access unit.
[0308]
Furthermore, in this specification, the system represents the entire apparatus including processing means and a plurality of apparatuses.
[0309]
【The invention's effect】
As described above, according to the present invention, recording data of a digital video tape can be recorded on a DVD. In particular, the user simply connects the DV loaded with digital videotape to the PC and turns on the DV (and if necessary, click the PC mouse 1 to instruct the execution of the process. By simply turning it, the digital videotape recording data can be imported from a DV to a PC, changed from the DV format to the DVD format, and automatically processed through a series of processes from recording to DVD. . That is, a series of processing until video data recorded on the first recording medium in the first format is recorded on the second recording medium in the second format is executed without the manual operation of the user. be able to.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration example of an information processing system including a personal computer to which the present invention is applied.
2 is a block diagram showing a hardware configuration example of a personal computer to which the present invention is applied, in the information processing system of FIG. 1;
3 is a diagram illustrating a configuration example of a digital video recorder in the information processing system of FIG. 1;
4 is a functional block diagram showing a configuration example of a data acquisition / DVD writing unit, which is one of software included in the personal computer of FIG.
FIG. 5 is a flowchart for explaining a processing example of a data acquisition / DVD writing unit in FIG. 4;
[Fig. 6] Fig. 6 is a diagram for explaining an example of survey contents of recording of a digital video tape.
7 is a flowchart for explaining a detailed example of a bit rate setting process in the data acquisition / DVD writing process of FIG. 5;
FIG. 8 is a diagram for explaining an example of the relationship between the total time of data written to a DVD and the bit rate.
FIG. 9 is a diagram for explaining an example of the relationship between the total time of data to be written to a DVD and the capacity when written to a DVD.
10 is a functional block diagram showing a configuration example of an acquisition unit in the data acquisition / DVD writing unit of FIG. 4 in FIG. 4;
11 is a flowchart for explaining a detailed example of digital video tape recording data acquisition processing in the data acquisition / DVD writing processing of FIG. 5; FIG.
12 is a diagram illustrating a specific processing example of a division acquisition unit in the acquisition unit of FIG.
13 is a diagram illustrating a specific processing example of a division acquisition unit in the acquisition unit of FIG.
14 is a diagram illustrating a specific processing example of a division acquisition unit in the acquisition unit of FIG.
15 is a diagram illustrating a specific processing example of a division acquisition unit in the acquisition unit of FIG.
16 is a diagram illustrating a specific processing example of a division acquisition unit in the acquisition unit of FIG.
FIG. 17 is a flowchart for explaining a detailed example of automatic acquisition processing in the recording data acquisition processing of the digital video tape of FIG. 11;
18 is a flowchart for explaining a detailed example of an automatic acquisition process in the recording data acquisition process of the digital video tape of FIG. 11. FIG.
FIG. 19 is a flowchart for explaining a detailed example of chapter registration processing in the data acquisition / DVD writing processing of FIG. 5;
20 is a diagram for explaining a specific example of the chapter registration process of FIG. 19;
FIG. 21 is a diagram for explaining a specific example of the chapter registration process of FIG. 19;
FIG. 22 is a diagram for explaining a specific example of the chapter registration process of FIG. 19;
FIG. 23 is a block diagram illustrating another configuration example of an information processing system including a personal computer to which the present invention is applied.
FIG. 24 is a block diagram illustrating another configuration example of an information processing system including a personal computer to which the present invention is applied.
FIG. 25 is a block diagram illustrating another configuration example of an information processing system including another information processing apparatus to which the present invention is applied.
[Explanation of symbols]
11 Personal Computer (PC) 12 Digital Video Tape Recorder (DV), 13 Digital Video Tape, 14 DVD, 21 CPU, 34 HDD, 34-1 Free Space, 34-2 DV Format Storage Area, 34-3 DVD Format Storage Area, 36 DVD-R / RW drive, 45 i.LINK, 101 start-up section, 102 processing control section, 103 DV control section, 104 survey section 104 acquisition section, 106 bit rate setting section, 107 menu creation section, 108 DVD writing Part, 109 DVD format part, 110 survey contents / setting contents storage part, 121 to 124 recording sections, 131 to 134 chapters, 171 acquisition mode selection part, 172 division acquisition part, 173 format conversion part, 174 acquisition data deletion part, 175 Batch acquisition unit, 17 6 Overlap monitoring unit, 177 Unrecorded area monitoring unit, 178 Tape end monitoring unit, 182 chapter, 182-1, 182-2 divided section, 211 to 217 chapter, 221-1, 221-2 chapter menu, 231 to 235 Chapter, 241 Chapter menu

Claims (6)

In an information processing apparatus for acquiring content data recorded in a first format,
Storage means for storing the content data;
Computing means for computing the free capacity of the free area of the storage means;
Based on the free capacity of the storage means calculated by the calculation means, the content data is divided into a plurality of section data, to obtain predetermined first section data of the plurality of divided section data, Acquisition means for storing in the first area of the free area of the storage means;
The format of the first interval data acquired by the acquisition means and stored in the storage means is converted from the first format to the second format, and the data amount is smaller than the first interval data Converting means for generating format conversion section data, and storing the generated format conversion section data in a second area of the free area of the storage means;
When the format of the first section data is converted by the conversion means and the generated format conversion section data is stored in the second area of the storage means , the plurality of sections constituting the content data An erasure unit for erasing the first interval data stored in the storage unit before second interval data different from the first interval data among the data is acquired by the acquisition unit;
When each of the plurality of format conversion section data corresponding to each of the plurality of section data acquired by the acquisition means is stored in the storage means, the plurality of format conversion section data are collected together, Recording control means for recording on a predetermined recording medium as the content data in the format of 2 ,
The calculation means further calculates a first data amount of the content data in the first format and a second data amount of the content data in the second format, and calculates the first data A threshold value is calculated by adding the amount and the calculated second data amount;
The acquisition means calculates the calculation means from the free capacity of the storage means when the free capacity of the storage means calculated by the calculation means is smaller than the threshold value calculated by the calculation means. The amount obtained by subtracting the amount of the second data that has been set is set as the capacity of the first area, and the content data has a data amount that is equal to or less than the capacity of the set first area. An information processing apparatus , wherein the first section data among the plurality of section data obtained by the sectioning is acquired and stored in the first area of the storage unit. The playback device is a digital video tape recorder,
The first format is a format of the digital video tape recorder;
The information processing apparatus according to claim 1 , wherein the second format is a format defined by a DVD standard. The digital videotape recorder further comprises an investigation means for reproducing the digital videotape on which the content data is recorded and investigating a recording section from a recording start point to a recording end point appearing next to the recording start point. ,
The acquisition means divides the content data using data corresponding to each of the plurality of recording sections investigated by the investigation means as one piece of the section data, and the data of the plurality of sectioned pieces of data is divided. The information processing apparatus according to claim 2 , wherein the first section data is acquired and stored in the storage unit. The acquisition means has a data amount of the first area when there is data whose data amount exceeds the capacity of the first area in the data corresponding to each of the plurality of recording sections investigated by the investigation means . The data corresponding to the recording section exceeding the capacity of the first area is further divided into a plurality of data equal to or less than the capacity of the first area , instead of one section data, and each of the divided plurality of data The content data is classified as one section data, and the first section data among the plurality of section data acquired is acquired and stored in the storage means. 3. The information processing apparatus according to 3 . The investigation means causes the digital video tape recorder to play back the digital video tape on which the content data is recorded at a speed higher than usual, and investigates a provisional recording section corresponding to the recording section,
The acquisition unit divides the content data using data corresponding to each of the plurality of provisional recording sections investigated by the survey unit as one provisional section data, and stores the plurality of provisional section data. The recording start point of the recording section corresponding to the predetermined first temporary section data is detected, and the recording that appears next to the recording start point from the detected recording start point to the digital video tape recorder. Control is performed to reproduce data corresponding to the recording interval up to the end point, and the data corresponding to the recording interval controlled to be reproduced by the digital video tape recorder is acquired as the first interval data. The information processing apparatus according to claim 3 , wherein the information is stored in the storage unit. In a program for causing a computer to execute processing for acquiring content data recorded in a first format and storing the content data in a predetermined storage device,
A calculation step of calculating a free capacity of a free area of the storage device;
Based on the free capacity of the storage device calculated by the processing of the calculation step, the content data is divided into a plurality of section data, and predetermined first section data among the plurality of divided section data is Obtaining and storing in the first area of the free area of the storage device;
The format of the first section data acquired by the processing of the acquisition step and stored in the storage device is converted from the first format to the second format, and the data amount is the first section data. A conversion step of generating smaller format conversion section data and storing the generated format conversion section data in a second area of the free area of the storage device;
When the format of the first section data is converted by the process of the conversion step, and the generated format conversion section data is stored in the second area of the storage device, a plurality of pieces constituting the content data The first section data stored in the storage device is erased before second section data different from the first section data is acquired by the processing of the acquisition step. An erasing step to
When each of the plurality of format conversion section data corresponding to each of the plurality of section data acquired by the acquisition step is stored in the storage device, the plurality of format conversion section data are collected and the first A recording control step of recording on a predetermined recording medium as the content data in the format of 2 ,
The calculating step further calculates the first data amount of the content data in the first format and the second data amount of the content data in the second format, and calculates the first data Calculating a threshold value by adding the amount and the calculated second data amount;
The obtaining step further includes, when the free capacity of the storage device calculated by the calculating step is smaller than the threshold value calculated by the calculating step, from the free capacity of the storage device, the calculating step The amount obtained by subtracting the second data amount calculated by the step is set as the capacity of the first region, and the content data has a plurality of the data amounts that are equal to or less than the set capacity of the first region. The program comprising the steps of: segmenting into segment data, obtaining the first segment data of the segmented segment data, and storing the first segment data in the first area of the storage device .

Images