JP5004706B2 - Recording apparatus and recording method - Google Patents

Description

  The present invention relates to a recording apparatus and a recording method, and particularly suitable for performing recording control and reproduction display control when a file size restriction occurs during recording when a moving image is recorded using an imaging apparatus. Technology.

  In an imaging apparatus such as a conventional electronic camera and camera-integrated video recorder, a moving image recorded in moving image shooting is stored in one recording file. Specifically, when recording of moving image data is started, a new file is generated with a file name conforming to the recording standard, the moving image and sound are compressed, and then sequentially written into the recording file. Patent Document 1 proposes an “information recording method for a video camera device” in which when a moving image recording stop request is made, recording is ended and the recording file is closed.

  In another conventional example, Patent Document 2 proposes a “moving image recording apparatus” that generates a recording file in which a moving image is divided every predetermined time or every predetermined amount of data in moving image shooting. . Furthermore, the “imaging device” is a patent that detects changes in scene switching during video shooting without the operator being aware of it, and based on this, the video recording file is divided into multiple files at appropriate locations. It is proposed in Document 3.

  The change in switching includes “1. Change in brightness”, “2. Change in light source”, “3. Change in subject distance”, “4. Change in position of designated range-finding frame”, “5. And “6. Change in zoom magnification”, “7. Change in orientation of imaging device”, and the like. One or more of these changes are used.

  The capacity of a conventional storage medium is an optical disk or a memory card of about several GB. Recently, a camera-integrated video recorder capable of recording for a long time using a large-capacity hard disk as a storage medium has been developed.

JP-A-8-294080 JP 11-341434 A JP 2006-93956 A

  The situation where movie shooting is performed varies depending on the recording scene, such as short cut shooting or long shooting of a long event. When shooting for a long time, if a long scene is a single recording file, there is a problem that it is difficult to perform editing after shooting. For this reason, in the camera proposed in Patent Document 2, a moving image is recorded as one recording file, or is recorded in a plurality of recording files divided every predetermined time or every predetermined amount of data. .

  However, in the technique described in Patent Document 2, a moving image is divided and recorded in a separate file without depending on scene switching. Therefore, when an operator tries to reproduce a scene that the user wants to view, a recording file including another scene is read. There is a need. For this reason, there is a problem that a desired scene cannot be displayed quickly. Therefore, in the point that a scene to be viewed can be quickly displayed, a method of automatically dividing a file at a change point of an image as in Patent Document 3 is excellent.

  On the other hand, there are cases where continuous recording data is limited depending on the moving image recording standard. For example, there are restrictions on the file length of the file system and restrictions on layer switching of the disk recording medium. In such a case, it is necessary to stop recording or divide the recording file.

  However, when recording MPEG-TS (transport stream), it is assumed that the recording file is simply divided according to the recording restriction. In this case, when the divided recording files are continuously reproduced, there is a problem that images cannot be reproduced seamlessly at the file division portion. In addition, in order to facilitate file division, if a method of inserting invalid data in a predetermined unit such as GOP is employed, invalid data needs to be periodically inserted, so the amount of code allocated to the compressed image is reduced. As a result, there is a problem that the image quality deteriorates.

  SUMMARY OF THE INVENTION In view of the above-described problems, an object of the present invention is to realize file division that can perform smooth continuous reproduction and to suppress image quality deterioration as much as possible.

  The recording apparatus of the present invention encodes the moving image data input by the input means for inputting moving image data and the input means, and generates a plurality of information packets each having a predetermined amount of the encoded moving image data, Processing means for outputting a plurality of the information packets, recording means for recording the plurality of information packets output from the processing means as a file on a recording medium, and the size of the first file recorded on the recording medium When a predetermined value is reached, a predetermined number of invalid packets are inserted between two consecutive information packets output from the processing means, and the predetermined invalid packet among the predetermined number of invalid packets is Control the recording means to close one file, open a second file and continue recording the information packet And when the predetermined amount of invalid packets cannot be inserted between two consecutive information packets output from the processing unit, the control unit is configured to store video data encoded by the processing unit. By reducing the code amount, the predetermined amount of invalid packets can be inserted between two consecutive information packets output from the processing means.

  In the recording method of the present invention, an input step of inputting moving image data, the moving image data input by the input step are encoded, and a plurality of information packets each having a predetermined amount of the encoded moving image data are generated, A processing step of outputting a plurality of the information packets, a recording step of recording the plurality of information packets output from the processing step as a file on a recording medium, and a size of the first file recorded on the recording medium When a predetermined value is reached, a predetermined number of invalid packets are inserted between two consecutive information packets output from the processing step, and the predetermined invalid packet among the predetermined number of invalid packets is Control the recording process to close one file and open a new second file to continue recording the information packet And when the predetermined amount of invalid packets cannot be inserted between two consecutive information packets output from the processing step, the control step is configured to store video data encoded in the processing step. By reducing the code amount, the predetermined amount of invalid packets can be inserted between two consecutive information packets output from the processing step.

According to the present invention, when the upper limit of the recording file is approaching during moving image recording, the processing means is used when the predetermined amount of invalid packets cannot be inserted between two consecutive information packets output from the processing means. By reducing the code amount of the moving image data encoded by the above, the predetermined amount of invalid packets can be inserted between two consecutive information packets output from the processing means. As a result, even after the file size reaches a predetermined amount, even if the code amount of the moving image is too large and a predetermined amount of invalid packets cannot be inserted between the two information packets, A predetermined amount of invalid packets can be inserted between the information packets, and it is possible to realize file division capable of performing smooth continuous reproduction and to suppress image quality deterioration as much as possible.

(First embodiment)
FIG. 1 is a block diagram illustrating a schematic configuration of an imaging apparatus having an imaging function such as a digital camera, a digital video camera, and a mobile phone to which the present invention is applied. In the present embodiment, description will be made as an imaging apparatus that records audio information, video information, and incidental information as a recording file on a recording medium in accordance with a predetermined moving image recording standard.

  In FIG. 1, reference numeral 200 denotes the overall configuration of the imaging apparatus. Reference numeral 201 denotes a lens for taking an optical image into the imaging apparatus 200. Reference numeral 202 denotes a solid state sensor that converts an optical image captured by the lens 201 into an electrical signal. An A / D converter 203 converts the electrical signal converted by the solid state sensor 202 into digital data. Reference numeral 204 denotes a motor that drives the lens 201 to a focal point.

  Reference numeral 209 denotes a microphone that captures sound and generates a sound signal. Reference numeral 210 denotes a microphone amplifier that amplifies an audio signal captured by the microphone 209. An A / D converter 211 converts the audio signal amplified by the microphone amplifier 210 into digital data. An operation key 212 is operated to cause the imaging apparatus 200 to perform various operations. Reference numeral 213 denotes a display driver that converts a video signal into a display format. Reference numeral 214 denotes a display unit for displaying an image, which includes, for example, an LCD, an EVF, or the like. Reference numeral 215 denotes a speaker driver for outputting an audio signal from the speaker 216. Reference numeral 217 denotes an external input / output terminal for inputting / outputting various information.

  Further, reference numeral 224 denotes various sensor circuits that detect the surrounding environment such as device vibration and condensation. 226 is a strobe light emitting unit. 250 is a recording medium. A socket 225 stores the recording medium 250. A CPU 230 controls the entire system. 222 is a memory for programs and data for the CPU and system. Reference numeral 221 denotes a power supply device for the imaging apparatus.

Next, the basic recording operation of the recording apparatus of this embodiment will be described with reference to FIG.
When shooting is performed, an optical image from a subject incident through the lens 201 is converted into an electrical signal by the solid state sensor 202.

  Then, the electric signal converted by the solid state sensor 202 is sampled by the A / D converter 203 and converted into digital data. The digital data converted by the A / D converter 203 is input to the CPU 230 as a digital video signal such as luminance Y, color difference Cr, Cb, or RGB.

  By moving the lens 201 by driving the motor 204 in accordance with a control command from the CPU 230, an autofocus function and a zoom function are configured. A timing signal for extracting data from the solid state sensor 202 is generated by the CPU 230.

  In the case where the lens 201 has an anti-vibration function (acceleration sensor, anti-vibration actuator, etc.), signals output from the position sensor of the acceleration sensor and the anti-vibration actuator are input to the CPU 230. Then, the CPU 230 outputs an image stabilization control output signal to the motor 204, and controls the drive of the image stabilization actuator with the motor 204.

  The audio signal obtained from the microphone 209 is amplified by the microphone amplifier 210 and then sampled by the A / D converter 211 to collect the sound intensity at regular intervals, converted into digital data, and input to the CPU 230. The

  Basic processing such as color separation, white balance, gamma correction, and aperture correction is performed on the digital video signal supplied to the CPU 230. In addition, additional processing such as image size, image quality adjustment, and position adjustment set with the operation key 212 of the imaging apparatus 200 is performed. Further, the CPU 230 functions as an encoder, performs MPEG2 image compression processing with a preset compression method and compression parameters, and generates a predetermined amount of compressed image information.

  The audio data given to the CPU 230 is subjected to processing such as auto gain control and wind noise prevention processing, and additional processing such as sound quality adjustment set with the operation key 212 of the imaging apparatus 200. As a result, audio compression data is generated using a preset compression method and compression parameters. In the present embodiment, the image compression data and the audio compression data adopt the MPEG standard, and the stream format forms a data stream as a transfer stream (TS) defined by the MPEG standard together with the control data. That is, the CPU 230 synthesizes a packet group in which transfer time information is added to compressed image information, audio information, and incidental information.

  FIG. 2 is a diagram for explaining a data stream to be recorded, and is composed of 192-byte packets (TS packets). In FIG. 2, A part is a time stamp (4 bytes) indicating arrival time information, H part is a header indicating packet information, and P part is a data payload (data body part to be originally transferred).

  The header portion H has a sync byte for synchronization, a transport error indicator indicating error information, a payload unit start indicator indicating payload information, a transport priority indicating priority, and a PID (packet ID) indicating payload attributes. . Further, it includes transport scramble control indicating scramble information, an adaptation field control indicating attached information, a continuity control indicating continuity, and an adaptation field of supplementary information. Information in each header may or may not appear as needed.

  The MPEG2 system has a structure in which a PES packet header is added to a packet obtained by dividing individual streams such as video and audio, called a PES packet. In the PES packet header, a code (stream ID) for identifying an individual stream, a packet size, time information for synchronous reproduction such as PTS and DTS, and other control information are described.

  A PES packet containing individual streams such as video and audio is divided into a plurality of TS packet payloads having the same PID number and transmitted. Since the transport stream can transmit multiple programs, there is table information that indicates the relationship between the program included in the data stream and program elements such as video and audio streams that make up the program. To do.

  This table information is called program specification information (PSI: Program Specific Information), and there are types of tables such as PAT (Program Association Table) and PMT (Program Map Table). PSI such as PAT and PMT is recorded by being embedded in a payload in a TS packet in units called sections.

  A transport packet (MPEG-TS packet) in the MPEG standard is composed of 188 bytes. However, in the TS packet of this embodiment, 192 bytes obtained by adding a time stamp of 4 bytes of arrival time information to the MPEG-TS packet is recorded as a TS packet. The time stamp 4 bytes of arrival time information records a counter value generated from a 27 MHz system clock.

  The moving image recording standard is recorded according to a predetermined standard such as SD-Video, DVD-VR, or DVD-Video standard, and the still picture is recorded according to a still picture standard such as a DCF (Design Rule for Camera File system) standard. The power supply of the imaging apparatus is supplied from the power supply 221 and is supplied to each circuit block.

  As the recording medium 250, a memory card such as an SD card, MMC, SSFDC, compact flash (registered trademark), or PC card is considered in the embodiment. Alternatively, one or a plurality of magnetic and optical (or magneto-optical) recording media such as a hard disk, CD-RW, FD, MD, DVD-R, DVD-RW, and DVD-RAM are used.

  The file system for file management of the recording medium uses the FAT32 file system. The FAT32 file system has a management limitation that the file length that can be handled is 4 GB or less than 2 GB. For this reason, if the file length that can be recorded in the same file is not limited, device compatibility of the recorded file cannot be ensured.

  FIG. 3 shows a state in which TS packets are arranged in the time axis direction. A group of picture (GOP) as a unit of MPEG encoding is composed of one intra-frame encoded image (I picture) and a plurality of inter-frame encoded images (B, P, D pictures). One GOP is divided into a plurality of TS packets and recorded. A TS packet including the PSI information and the like is added to the head of each TS packet for 1 GOP. Depending on the recording standard, the beginning of a GOP may require a recording restriction from a PSI packet or a recording restriction from an I picture. Note that the D picture is an image of only a DC component used for fast forward and fast forward reverse playback.

  When the data stream is divided, the division position is set as a GOP boundary as a limitation of the recording standard. In addition, there may be a condition that the byte alignment is set to a specified value. Here, byte alignment means that TS packets are generated every 192 bytes, but the recording unit of the recording file system is generally 2 kilobytes for the UDF file system and 32 kilobytes for the FAT file system. Yes. For this reason, it means that the least common multiple of the TS packet and the file system, the alignment of every 6 km or 32 km.

Next, the detailed operation of the file division recording operation with the specified file size, which is a feature of the present invention, will be described.
FIG. 4 shows a state in which TS packets are arranged in the time axis direction as in FIG. In FIG. 4, reference numerals 101 to 142 are numerical values showing the arrival time stamps in a pseudo manner. When recording data in File 1 in the time axis direction, if the size of file 1 exceeds the specified size, CPU 230 widens the time stamp interval of TS packets output to the recording / playback control circuit to the internal encoder. . The CPU 230 widens the arrival time stamp interval of TS packets at the timing indicated by the arrows in FIG. The encoder leaves a TS packet interval from p106 to p138. Then, before p138, an instruction for steady operation is issued to the encoder.

  From p107 to p137 where the TS packet interval is widened, 30 invalid TS packets NULL from p107 to p137 are generated in the memory 222 by the processing of the CPU 230. The arrival time stamp of each packet is calculated by adding a time stamp continuous to the numerical value 106 of the preceding p106 of the TS packet and the numerical value 138 of the continuing p138. After that, between P106 and p137, File1 is closed at the byte alignment position described above, which is the least common multiple of the file system and TS packet.

  Next, File2 is newly created and subsequent TS packets are recorded. When the PSI information of the data stream is necessary at the head of File 2, processing for replacing the replaced invalid TS packet NULL with PSI information or the like is performed. If the head of File2 needs to be the head of the GOP described above, file division processing is performed before the head of the GOP. In FIG. 4, p138 indicates the TS packet at the head of the GOP, and shows how the division processing is performed at the head of the GOP.

FIG. 5 is a diagram illustrating the description of FIG. 4 with a file image.
In FIG. 5, p133-p140 is the same as the TS packet described in FIG. In File1, an invalid TS packet NULL is inserted in p134, p135, and p136, and the file is closed. The invalid TS packet NULL inserted at the top p137 of File 2 is rewritten with PSI information and recorded as p138, p139...

  In both FIG. 4 and FIG. 5, the file division is performed after p136, but the division is performed in a timely manner at a position in accordance with the byte alignment of the file system between p106 and p138. Further, the invalid TS packet NULL is rewritten in accordance with the recording standard when information such as PAT and PMT is necessary for the TS packet at the head of the file.

  In addition, a function for enabling and disabling the division operation by a setting function of the imaging apparatus 200 can be implemented. When the function is disabled, the TS packet that exceeds the specified file size is immediately divided.

  Also, when the specified file size is exceeded and an instruction to change encoder control is given, the encoder starts control to widen the TS packet interval enough to insert an invalid TS packet NULL. However, depending on the input image, the output code amount is large, and the TS packet interval may not be kept. As a countermeasure in this case, (a) the file division process is suspended until an input image having a code amount sufficient to leave a TS packet interval arrives. (B) It is conceivable to adjust the code amount of the encoder, execute a process of reducing the output code amount, and perform a process of increasing the TS packet interval.

FIG. 8 is a flowchart for explaining an example of the recording method of the present embodiment.
In FIG. 8, the task of the moving image recording mode is activated in step S101. In step S102, it is determined whether or not recording is started.

  If the result of determination in step S102 is that recording has not started, the process waits in step S102. If the result of determination in step S102 is that recording has started, processing proceeds to step S103. In step S103, a new file is created with the file name File1 in accordance with the file creation rules of the recording standard, and recording is started.

  Next, in step S104, the recording file sizes are compared. This comparison is a comparison with a value obtained by subtracting a predetermined capacity TS (GB) from the file system management limit capacity LS (GB). If the comparison result in step S104 is equal to or smaller than the subtracted value, the process proceeds to step S120.

  If the comparison result in step S104 is equal to or larger than the subtracted value, it is determined in step S105 whether or not to execute the division control operation in the operator setting. As a result of the determination in step S105, if the division control operation is not executed, the process proceeds to step S120. As a result of the determination in step S105, if a split control operation is to be executed, a control change operation instruction is issued to the encoder in step S106, and the process proceeds to step S107.

  In step S107, the encoder determines whether the input image can increase the packet interval. As a result of this determination, if the code amount after image compression is too large and the packet interval cannot be increased, the process waits at step S107 until an input image that can be controlled.

  As a result of the determination in step S107, if the input image can be subjected to control for increasing the packet interval, the process proceeds to step S108, and processing for increasing the packet interval after compression encoding is performed.

  Next, in step S109, an invalid packet with an arrival time stamp such that the packet that continues the arrival time stamp of the preceding packet and the arrival time stamp of the subsequent packet are continued in the part where the packet interval is widened. Insert a predetermined number. Then, File 1 is closed at a position where the alignment of the invalid packet matches the file system.

Next, in step S110, an instruction for returning the interval of the transfer packet to normal control is issued to the encoder.
Next, in step S111, a new file File2 is generated, and the next packet after the last invalid packet of File1 is recorded.

  Next, in step S120, it is determined whether there is a recording stop request. If the result of this determination is that there is no recording stop request, that is, recording is in progress, processing returns to step S105 and the above-described processing is repeated. If the result of determination in step S120 is that there is a recording stop request, processing proceeds to step S121, File 2 is closed, and the management file group is updated and recorded. At this time, the division processing state of File1 and File2 is registered and recorded in the management file. Thereafter, the task is terminated in step S150.

Next, an example of the representative image display of the moving image recorded in the control and the reproduction operation of the designated image will be described.
The representative image display of the recorded moving image will be described with reference to the block diagram of FIG.
First, under the control of the recording / playback control circuit 223, the CPU 230 reads information on a file system that manages the recording medium from the recording medium 250.

  Then, the recorded directory and file are searched from the information read from the recording medium 250, and a file group of audio, video, and additional information according to the moving image standard is listed. Further, the supplementary information of the file group is read from the contents of the management file described in the recording operation described above. Then, a moving image file as a representative image is selected from these pieces of information.

  For example, when there are five scene image files, the entity data for each file is read from the recording medium 250 under the control of the recording / playback control circuit 223 using the logical address calculated from the file system. Then, the CPU 230 performs image composition processing and resizing processing, and displays the image at a designated position on the display unit 214 via the display driver 213.

  The above operation is repeated five times. A display example in that case will be described with reference to FIG. FIG. 6 shows a state in which representative images from files 1 to 5 are displayed on the display unit 214. Reference numeral 300 shown in FIG. 6 is a display that suggests that the files 2 and 3 are related files on which the file division processing has been performed. The related file uses information from the management file.

Further, as shown in FIG. 7, the related file 2 and the file 3 can be displayed by displaying only the file 2 and indicating that the related file exists, as indicated by reference numeral 301 in FIG. Further, it is possible to have a function for the operator to select which one of the displays shown in FIG. 6 or FIG.
Further, in the present embodiment, information indicating that the recording file and the new file are continuous recording is displayed from the management file information.

  As described above, according to the recording apparatus of the present embodiment, when the file size of the recording file reaches a predetermined value, the compression control and the transfer control (encoder control) are changed to widen the interval between the transfer packets. Then, a predetermined number of invalid packets are inserted into the expanded area, and the file is closed at the byte alignment position of the file. Thereafter, the instruction means changes the compression control and the transfer control to change the transfer packet interval to a normal interval, creates a new file, and creates a packet group for the created new file. To continue recording.

  By performing such processing, it is possible to perform file division capable of performing continuous reproduction as smoothly as possible. Further, by performing file division only when necessary, image quality deterioration due to division operation can be suppressed as much as possible.

  Furthermore, since the synthesis is performed according to the transport stream standard of the MPEG standard, the present invention can be applied according to a widely used standard. Furthermore, since the predetermined value of the file size is the maximum management capacity of the file system, compatibility with general-purpose devices such as personal computers can be ensured.

  Furthermore, by recording the related information between the recording file and the newly created file in the additional information or the management file, it is possible to provide information that is effective when controlling playback of the recorded content.

  Furthermore, a unit for reproducing the representative image of the moving image file recorded on the recording medium and a display unit for displaying the reproduction image list are provided. Then, from the information of the management file, information obtained by dividing the recording file and the newly created file by size restriction is held and used. As a result, it is possible to provide a function that does not make the operator aware that file division is performed due to device restrictions.

(Another embodiment according to the present invention)
Each means constituting the recording apparatus according to the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  In addition, the present invention can be implemented as a system, apparatus, method, program, storage medium, or the like, and can be applied to a system composed of a plurality of devices. Moreover, you may apply to the apparatus which consists of one apparatus.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowchart shown in FIG. 8) for executing each step in the recording method described above is directly or remotely supplied to the system or apparatus. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Various recording media can be used as a recording medium for supplying the program. For example, floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD- R).

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  In addition to the functions of the above-described embodiments being realized by the computer executing the read program, the OS running on the computer performs part or all of the actual processing. Also, the functions of the above-described embodiments can be realized.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiment are realized by the processing.

1 is a block diagram illustrating a schematic configuration of an imaging apparatus having an imaging function according to an embodiment of the present invention. It is a figure which shows embodiment of this invention and demonstrates a recording data stream. It is the figure which showed embodiment of this invention and showed a mode that TS packet was located in a line with the time-axis direction. FIG. 4 is a diagram illustrating an embodiment of the present invention, illustrating a state in which TS packets are arranged in a time axis direction, and a diagram for explaining an arrival time stamp in a pseudo manner. It is a figure which shows embodiment of this invention and demonstrates file division by a file image. It is a figure which shows the example of a display of embodiment of this invention, and shows a mode that the representative image of the files 1-5 is displayed on a display part. It is a figure which shows embodiment of this invention and shows the example of a display which suggests that a related file exists in the file. 5 is a flowchart illustrating an example of a recording method according to an exemplary embodiment of the present invention.

Explanation of symbols

200 Imaging Device 201 Lens 202 Solid Sensor 203 A / D Converter 204 Motor 209 Microphone 210 Microphone Amplifier 211 A / D Converter 212 Operation Key 213 Display Driver 214 Display Unit 215 Speaker Driver 216 Speaker 217 External Input / Output Terminal 221 Power Supply 222 Memory 223 Recording Reproduction control circuit 224 Various sensor circuits 225 Socket 226 Strobe light emitting unit 230 CPU250 Recording medium

Claims (4)

An input means for inputting video data;
Processing means for encoding moving image data input by the input means, generating a plurality of information packets each having a predetermined amount of the encoded moving image data, and outputting a plurality of the information packets;
Recording means for recording the plurality of information packets output from the processing means as files on a recording medium;
When the size of the first file recorded on the recording medium reaches a predetermined value, a predetermined number of invalid packets are inserted between two consecutive information packets output from the processing means, and Control means for controlling the recording means to close the first file in a predetermined invalid packet among a predetermined number of invalid packets, open a new second file and continue recording the information packet; With
When the predetermined amount of invalid packets cannot be inserted between two consecutive information packets output from the processing unit, the control unit reduces the code amount of the video data encoded by the processing unit, The recording apparatus, wherein the predetermined amount of invalid packets can be inserted between two consecutive information packets output from the processing means.   The recording unit records the file according to a predetermined file system, and the control unit closes the first file at a position where a boundary of the invalid packet matches a recording unit of the file system. The recording apparatus according to claim 1, wherein the means is controlled.   The recording apparatus according to claim 2, wherein the predetermined value is a value obtained by subtracting a predetermined amount from a file length limited by the file system. An input process for inputting video data;
A process of encoding the moving image data input by the input step, generating a plurality of information packets each having a predetermined amount of the encoded moving image data, and outputting a plurality of the information packets;
A recording step of recording a plurality of the information packets output from the processing step as a file on a recording medium;
When the size of the first file recorded on the recording medium reaches a predetermined value, a predetermined number of invalid packets are inserted between two consecutive information packets output from the processing step, and A control step for controlling the recording step so that the first file is closed in a predetermined invalid packet among a predetermined number of invalid packets, a second file is newly opened, and recording of the information packet is continued. With
When the predetermined amount of invalid packets cannot be inserted between two consecutive information packets output from the processing step, the control step reduces the code amount of the video data encoded in the processing step, A recording method, wherein the predetermined amount of invalid packets can be inserted between two consecutive information packets output from the processing step.

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