JP2013046266A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm the identity of a moving image in a short time, that has been simultaneously recorded in multiple recording media.SOLUTION: Moving image data from an input part (101) is encoded by compression and simultaneously recorded in recording media (108, 109). When the moving image data of the recording medium (108) is reproduced, the moving image data is read from the recording medium (108) into a memory (105), decoded in a signal processing part (104), and displayed as an image in a display part (110). The signal processing part (104) notifies a control part (102) of a decoding error. The simultaneously recorded moving image data of the recording medium (109) is read out into the memory (105) with the reading from the recording medium (108). The control part (102) determines coincidence in the moving image data read from the recording media (108, 109). The control part (102) allows the display part (110) to display the presence of a decoding error, a coincidence determination result, and a message for necessity to perform copying when an error exists.

Description

  The present invention relates to a recording apparatus, and more specifically to a recording apparatus that simultaneously records an image, preferably a moving image, on a plurality of recording media.

  2. Description of the Related Art Conventionally, recording apparatuses that record moving image signals and audio signals on recording media are known. In this type of recording apparatus, there is also an apparatus capable of recording the same moving image signal on a plurality of recording media.

  On the other hand, in broadcast sites and the like, very high reliability is required for recorded video signals compared to home-use photography. Therefore, a camera that simultaneously records the same moving image signal on a plurality of recording media has been proposed (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 07-231420

  In a recording device that records the same image on multiple recording media at the same time, in order to confirm that the image can be recorded normally on each recording medium, play the recorded image from each recording medium and confirm that they are the same. There is a need to. This method requires a time corresponding to the number of recording media. In addition, it is necessary to confirm the identity of images recorded on each recording medium by some method.

  An object of the present invention is to solve such problems and to provide a recording apparatus capable of confirming the identity of images simultaneously recorded on a plurality of recording media in a short time.

  The recording apparatus according to the present invention includes an input unit for inputting moving image data, recording of moving image data input by the input unit to a plurality of recording media, and reading of moving image data recorded from the plurality of recording media. Recording medium control means for performing recording, control means for controlling the recording medium control means so as to simultaneously record the moving image data input by the input means on the plurality of recording media, and any one of the recording medium control means by the recording medium control means Error detection means for detecting an error in moving image data read from the recording medium, determination means for determining whether moving image data simultaneously recorded on the plurality of recording media match, and information display device Output means, and the control means reads out the moving image data recorded simultaneously from one of the plurality of recording media while reading from the one recording medium. Controlling the recording medium control means to read moving picture data recorded simultaneously with the generated moving picture data from another recording medium, and performing error detection processing on the moving picture data read from the one recording medium And causing the determination means to execute matching determination between the moving image data from the one recording medium and the moving image data from the other recording medium, and to determine whether the detection result of the error detection means matches the determination means. Information according to the result is output by the output means.

  According to the present invention, images simultaneously recorded on a plurality of recording media can be confirmed in a short time.

It is a schematic block diagram of an example of the present invention. It is a flowchart which shows a reproduction | regeneration process. It is a flowchart which shows the reproduction | regeneration confirmation process of a present Example. It is a flowchart which shows an error process. It is a table | surface of the example of a display message depending on a decoding error and a coincidence determination result. It is a flowchart which shows another reproduction | regeneration processing. It is a flowchart which shows the reproduction | regeneration confirmation process corresponding to FIG. It is a flowchart which shows the error process corresponding to FIG.6 and FIG.7.

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

  FIG. 1 shows a schematic block diagram of an embodiment of a recording apparatus according to the present invention.

  The input unit 101 acquires and outputs moving image signals and audio signals. In this embodiment, the input unit 101 inputs a moving image signal and an audio signal supplied from the outside of the recording apparatus 100, but may include an imaging unit and a microphone.

  The control unit 102 controls the entire operation of the recording apparatus 100 in accordance with an input from the user interface (UI) 103. The control unit 102 includes a microcomputer and a memory, and controls the recording apparatus 100 according to a program stored in the memory. The control unit 102 also includes a recording medium interface (IF) for communicating data and commands with the recording medium control unit 106. The UI 103 includes various switches that can be operated by the user. The UI 103 receives various instructions from the user and notifies the control unit 102 of them. The UI 103 includes a power switch, a switch for instructing start / stop of recording, a mode switch for switching the mode of the recording apparatus 100, and the like.

  At the time of recording, the signal processing unit 104 encodes the moving image signal and the audio signal input from the input unit 101 according to a known encoding format such as MPEG, and compresses the information amount. In addition, processing necessary for recording moving image signals and audio signals is performed. Further, at the time of reproduction, the signal processing unit 104 decodes the compressed data of the moving image signal and the audio signal read from the recording medium, and expands the information amount. In addition, the signal processing unit 104 outputs information on the code amount (data amount) of the encoded moving image signal and audio signal to the control unit 102 during recording.

  The memory 105 stores moving image signals and audio signals. Each block of the recording apparatus 100 processes the necessary moving image signal and audio signal by accessing the memory 105. The memory 105 stores various information such as file system information and management information in addition to moving image signals and audio signals, and further serves as a work memory for control by the control unit 102.

  The recording medium control unit 106 records and reproduces moving image signals, audio signals, and various necessary information on the recording media 108 and 109. The recording medium control unit 106 records moving image data and audio data stored in the memory 105 on one or both of the recording media 108 and 109 during recording. Further, the recording medium control unit 106 reads out moving image data and audio data from the recording medium 108 or 109 during reproduction, and stores them in the memory 105. In this embodiment, the recording media 108 and 109 are configured as separate recording media that are independent of each other, and each includes a random access recording medium such as a hard disk (HDD) or a flash memory card.

  The recording medium control unit 106 manages moving image data, audio data, and various types of information recorded on the recording media 108 and 109 as files according to a file system such as FAT (File Allocation Table). The recording medium control unit 106 has a known interface (IF) such as ATA, and communicates data and various commands with the recording medium IF in the control unit 102.

  The recording media 108 and 109 can be easily mounted on and discharged from the recording apparatus 100 by a recording medium mounting / discharging mechanism (not shown). Of course, one of the recording media 108 and 109 may be built in the recording apparatus 100. As will be described later, the recording medium control unit 106 detects a state during data recording on the recording media 108 and 109 and notifies the control unit 102 of the detected state.

  When writing or reading data (file) to or from the recording media 108 and 109, the control unit 102 controls the recording medium control unit 106 to transfer file system data (management data) from the recording media 108 and 109 to the memory 105. Read. This file system data is data indicating the file name, file size, recording address, and the like of data recorded on the recording media 108 and 109, and is management information for managing files. The control unit 102 controls file writing and reading according to the read file system data. The control unit 102 updates the file system data stored in the memory 105 in accordance with the file writing to the recording media 108 and 109. The updated file system data is recorded on the recording media 108 and 109 by the recording medium control unit 106 at an appropriate timing.

  The user can operate the UI 103 to instruct switching of the operation mode of the recording apparatus 100 and start and stop of moving image data recording. In this embodiment, when two recording media 108 and 109 are loaded, the user can operate the UI 103 to specify any one of the recording media 108 and 109 as a recording destination. Furthermore, it is possible to instruct the control unit 102 to simultaneously record the same moving image data on the two recording media 108 and 109.

  The recording apparatus 100 has a copy function of reading a moving image file recorded on one of the two recording media 108 and 109 and recording it on the other.

  The output unit 107 outputs the reproduced moving image data and audio data to a display device outside the recording device 100. The display unit 110 displays a moving image and various types of information on a display device such as a liquid crystal panel. The data bus 111 is used to transmit and receive data and various control commands between the respective units of the recording apparatus 100.

  The operation in the normal recording mode in which one of the two recording media 108 and 109 is designated by the user and moving image data is recorded on the designated recording medium will be described.

  Upon receiving an instruction to shift to the moving image data recording mode from the UI 103, the control unit 102 changes the recording apparatus 100 to a recording standby state and waits for an instruction to start recording. In the recording standby state, the control unit 102 causes the display unit 110 to display a moving image related to the moving image data input from the input unit 101. When an instruction to start recording is input from the UI 103, the signal processing unit 104 reads the moving image data and audio data input from the input unit 101 and stored in the memory 105, and starts encoding thereof. Data encoded by the signal processing unit 104, that is, encoded data is written in the memory 105. The recording medium control unit 106 reads the encoded data from the memory 105 and records it on the selected one of the recording media 108 and 109.

  When the recording stop instruction is received from the UI 103 after the recording is started, the control unit 102 stops the encoding of the moving image data and the audio data by the signal processing unit 104, and the recording unit 108 or 109 specified as the recording destination is stopped. Stop recording.

  In this embodiment, a series of moving images and audio recorded between a recording start instruction and a recording stop instruction are managed as one moving image file. Accordingly, the recording medium control unit 106 opens a new moving image file in response to the start of recording, and starts recording moving images and audio. When the recording of the moving image file is stopped, the control unit 102 generates management information related to the moving image file recorded between the recording start instruction and the recording stop instruction this time and records the management information on the recording medium of the recording destination. To the recording medium control unit 106. The management information includes mode information for identifying whether the recording mode of each moving image file is the normal recording mode or the simultaneous recording mode.

  A playback operation of a moving image recorded in the normal recording mode will be described. When there is an instruction to switch the playback mode through the UI 103, the control unit 102 causes the recording medium control unit 106 to detect a moving image scene recorded on the selected one of the recording media 108 and 109. The recording medium control unit 106 reads out the first screen of each moving image scene and supplies it to the signal processing unit 104. The signal processing unit 104 decodes the head screen and stores it in the memory 105. The signal processing unit 104 reduces the decoded image signal of the first screen and generates a representative image of each scene. The control unit 102 generates an index screen composed of representative images of a plurality of scenes and displays the index screen on the display unit 110.

  The user operates the UI 103 to select a desired representative image from the representative images displayed on the index screen and instruct reproduction. In response to the reproduction instruction, the control unit 102 controls the recording medium control unit 106 to reproduce the moving image file of the scene corresponding to the selected representative image. The recording medium control unit 106 reads out the moving image file of the designated scene from the recording medium and supplies it to the signal processing unit 104. The signal processing unit 104 decodes the encoded data of the read moving image file. The reproduced image is displayed on the display unit 110, and the corresponding reproduced image data is output from the output unit 107 to the outside.

  The operation in the simultaneous recording mode will be described. In the present embodiment, moving image data and audio data input from the input unit 101 can be simultaneously recorded on the two recording media 108 and 109. It becomes so-called mirroring. In this case, since the same encoded data is recorded on the recording media 108 and 109, the recorded files are also the same.

  The user can set the simultaneous recording mode by operating the UI 103 in the recording standby state. When the recording start instruction is received from the UI 103 in a state where the simultaneous recording mode is set, the control unit 102 starts encoding the input moving image and audio as in the case of the normal recording mode. As a result, the encoded data is stored in the memory 105. The control unit 102 instructs the recording medium control unit 106 to record the encoded data of the memory 105 on both the recording medium 108 and the recording medium 109. In response to this instruction, the recording medium control unit 106 reads the encoded data from the memory 105 and records it on the recording media 108 and 109, respectively.

  When receiving a recording stop instruction from the UI 103 after starting the recording, the control unit 102 stops the encoding of the moving image data and the audio data by the signal processing unit 104 and stops the recording on the recording media 108 and 109. The control unit 102 generates management information related to the moving image files recorded on the recording media 108 and 109, and controls the recording medium control unit 106 to record the management information on the recording media 108 and 109.

  In addition, the control unit 102 generates identification information for identifying the correspondence relationship between the moving image files recorded on the recording media 108 and 109 in the simultaneous recording mode. For example, identification information having the same value is generated for two moving image files simultaneously recorded on the recording media 108 and 109. The control unit 102 instructs the recording medium control unit 106 to include the generated identification information in the management information of each moving image file and record it on the recording media 108 and 109.

  The playback confirmation process for the simultaneously recorded video file will be described. When recording stop is instructed in the simultaneous recording mode, the recording apparatus 100 enters a recording standby state. In this state, when the user operates the UI 103 to instruct playback confirmation processing, the control unit 102 performs confirmation processing of the moving image file immediately recorded on the two recording media 108 and 109 immediately before. Specifically, a moving image file is reproduced from one of the recording media 108 and 109 (for example, the recording medium 108), and reproduced audio is output while displaying a reproduced image. At the same time, the control unit 102 reads the corresponding moving image file of the other recording medium (recording medium 109), compares it with the moving image file read from the recording medium 108, and determines whether they match. Of course, any moving image file is compared after correcting errors associated with recording and reproduction. The complete matching of the moving image data portions may be set as the same determination condition, but may be determined as the same by allowing a difference of less than a certain amount.

  FIG. 2 is a flowchart showing the reproduction / decoding process of a moving image file from one recording medium (for example, the recording medium 108) in the reproduction confirmation process. FIG. 3 is a flowchart showing a process of comparing the moving image files read from the recording media 108 and 109 and determining the identity in the reproduction confirmation process. The process shown in FIG. 2 and the process shown in FIG. 3 are executed in parallel. Also, the process shown in FIG. 2 and the process shown in FIG. 3 are executed by the control unit 102 controlling each unit.

  In FIG. 2, the control unit 102 detects the moving image file recorded immediately before from the moving image file recorded on the recording medium 108 and instructs the recording medium control unit 106 to play it back. The recording medium control unit 106 reads the designated moving image file from the recording medium 108 (S201), and stores the moving image and audio encoded data of the read moving image file in the memory 105 (S202). The control unit 102 instructs the signal processing unit 104 to sequentially decode the encoded data stored in the memory 105 (S203). When the encoded data cannot be decoded correctly, the signal processing unit 104 notifies the control unit 102 of a decoding error. That is, the signal processing unit 104 functions as an error detection unit that detects a transmission error or a recording / reproduction error of moving image data (encoded data) read from the recording medium 108. An image (reproduced image) of reproduced moving image data obtained by decoding is displayed on the display unit 110, and reproduced audio data is output from the output unit 107.

  The control unit 102 determines whether or not a notification of a decoding error has been received from the signal processing unit 104 (S204). When receiving the notification of the decoding error, the control unit 102 stores in the memory 105 that the decoding error has occurred (S205).

  When the notification of the decoding error is not received, the control unit 102 determines whether or not a reproduction stop instruction is received from the UI 103 (S206). When there is an instruction to stop reproduction (S206), the control unit 102 instructs the recording medium control unit 106 to stop reading the moving image file (S207), and returns to the recording standby state again. If there is no instruction to stop playback (S206), the control unit 102 determines whether or not the playback has been completed up to the end of the video file being played back (S208). If it has not been played back to the end, the process returns to S201 and continues. When the reproduction is completed to the end of the moving image file (S208), the control unit 102 instructs the recording medium control unit 106 to stop reading the moving image file (S207).

  Even when the encoded data is correctly decoded in step S203, the control unit 102 stores the encoded data in the memory 105 until the comparison process illustrated in FIG.

  The process shown in FIG. 3 will be described. The control unit 102 detects a moving image file recorded simultaneously with the moving image file reproduced from the recording medium 108 from among the moving image files recorded on the other of the two recording media (here, the recording medium 109). . The control unit 102 instructs the recording medium control unit 106 to read the detected moving image file from the recording medium 109 (S301). The recording medium control unit 106 reads out the designated moving image file from the recording medium 108 and stores the encoded data in the memory 105 (S302). Here, the control unit 102 instructs the recording medium control unit 106 to read the encoded data from the recording medium 109 by a predetermined amount in accordance with the reproduction process from the recording medium 108.

  In the playback confirmation process, the control unit 102 divides the storage area of the memory 105 into an area for storing encoded data read from the recording medium 108 and an area for storing encoded data read from the recording medium 109. The encoded data read from the recording medium 108 is sequentially updated according to the reproduction output. In synchronization with this sequential update, the control unit 102 controls the recording medium control unit 106 so as to store the encoded data for identity comparison from the recording medium 109 to the memory 105. Then, the control unit 102 sequentially compares the encoded data from the recording medium 108 stored in the memory and the encoded data from the recording medium 109 in bit units (S303). Whether or not the recorded contents are the same can be determined based on whether or not there is a mismatch in the bit-by-bit comparison (S304). That is, the control unit 102 functions as a determination unit that determines whether or not the moving image data simultaneously recorded on the recording media 108 and 109 match.

  When there is a mismatch portion (S304), the control unit 102 stores a flag indicating mismatch in the memory 105 as a match determination result (S305).

  When a playback stop instruction is received from the UI 103 without finding a mismatch (S306), the control unit 102 causes the recording medium control unit 106 to stop reading the moving image file (S307) and returns to the recording standby state. If there is no instruction to stop playback, the control unit 102 determines whether or not playback has been completed to the end of the video file being played back (S308). If it has not been reproduced to the end, the control unit 102 returns to S301, and causes the recording medium control unit 106 to read the next predetermined amount of encoded data for comparison and collation from the recording medium 109. When the reproduction is completed to the end of the moving image file (S308), the control unit 102 instructs the recording medium control unit 106 to stop reading the moving image file (S307).

  Since the data size of the moving image file is generally larger than the storage capacity of the memory 105, when comparing the data files recorded on the recording media 108 and 109, the comparison is performed while reading a predetermined amount. Such processing is the same for any file.

  In the processing shown in FIG. 2 and FIG. 3, error processing that is executed when reproduction to the end of the moving image file is completed will be described. FIG. 4 is a flowchart showing error processing. 2 and 3, when the reproduction is completed to the end of the moving image file, the control unit 102 automatically executes the process shown in FIG.

  The control unit 102 detects whether or not a decoding error is detected in the process shown in FIG. 2 and whether or not there is a data mismatch in the process shown in FIG. 3 (S401). When there is a decoding error (S402), the control unit 102 determines whether or not there is a data mismatch (S403).

  When there is a data mismatch (S403), the control unit 102 determines that there is an error in the moving image file recorded on the recording medium 108 and the moving image file recorded on the recording medium 109 is correct. In accordance with this determination, the control unit 102 causes the display unit 110 to display a message indicating that there is an error in the moving image file recorded on the recording medium 108 (S404). Further, the control unit 102 causes the display unit 110 to display a dialog asking the user whether or not to copy the moving image file of the recording medium 109 to the recording medium 108 (S404).

  When the user instructs copying in response to this inquiry (S405), the control unit 102 instructs the recording medium control unit 106 to read the moving image file recorded immediately before from the recording medium 109 and copy it to the recording medium 108. . In response to this instruction, the recording medium control unit 106 reads the designated moving image file from the recording medium 109 and records it on the recording medium 108, that is, copies it (S406). At this time, the control unit 102 generates management information regarding the moving image file copied to the recording medium 108 and instructs the recording medium control unit 106 to record the management information on the recording medium 108. This management information stores mode information indicating that recording is performed in the simultaneous recording mode. As the identification information for identifying the simultaneously recorded moving image file, the same value as that of the copy-source moving image file recorded on the recording medium 109 is stored.

  When the user gives an instruction not to copy (S405), the control unit 102 ends the process as it is.

  If there is a decoding error (S402) but there is no data mismatch (S403), the control unit 102 determines that both moving image files simultaneously recorded on the recording media 108 and 109 have an error. In this case, the control unit 102 causes the display unit 110 to display a message indicating that there is an error in both moving image files simultaneously recorded on the recording media 108 and 109 (S407). Further, the control unit 102 causes the display unit 110 to display an inquiry screen asking the user whether or not to delete the moving image files simultaneously recorded on the recording media 108 and 109 (S407).

  When the user instructs deletion via the UI 103 in response to the inquiry (S408), the control unit 102 instructs the recording medium control unit 106 to delete the moving image file recorded immediately before from the recording media 108 and 109 (S409). ). The recording medium control unit 106 deletes the designated moving image file from the recording media 108 and 109. At this time, the control unit 102 instructs the recording medium control unit 106 to delete the management information related to the deleted moving image file.

  When the user inputs an instruction not to delete (S408), the control unit 102 ends the process as it is.

  If no decoding error occurs (S402) and there is a data mismatch (S410), the control unit 102 has an error in the moving image file recorded on the recording medium 109, and the moving image file recorded on the recording medium 108 is correct. Judge. In accordance with this determination, the control unit 102 causes the display unit 110 to display a message indicating that there is an error in the moving image file recorded on the recording medium 109 (S411). Further, the control unit 102 causes the display unit 110 to display a dialog asking the user whether or not to copy the moving image file of the recording medium 108 to the recording medium 109 (S411).

  When the user instructs copying in response to this inquiry (S412), the control unit 102 instructs the recording medium control unit 106 to read the moving image file recorded immediately before from the recording medium 108 and copy it to the recording medium 109. . In response to this instruction, the recording medium control unit 106 reads out the designated moving image file from the recording medium 108 and records, that is, copies to the recording medium 109 (S413). At this time, the control unit 102 generates management information related to the moving image file copied to the recording medium 109 and instructs the recording medium control unit 106 to record the management information on the recording medium 109. This management information stores mode information indicating that recording is performed in the simultaneous recording mode. As the identification information for identifying the simultaneously recorded moving image file, the same value as that of the copy source moving image file recorded on the recording medium 108 is stored.

  When the user gives an instruction not to copy (S412), the control unit 102 ends the process as it is.

  When there is no decoding error (S402) and there is no data mismatch (S410), the control unit 102 determines that the moving image files recorded on the recording media 108 and 109 are correctly recorded. Then, the control unit 102 instructs the display unit 110 to display a message indicating no error (S414).

  FIG. 5 shows the correspondence between the judgment of the control unit 102 and the message displayed on the display unit 110 in the processing shown in FIG. If there is no decoding error in data reproduction from the recording medium 108 and the file comparisons of the recording media 108 and 109 match, simultaneous recording on the recording media 108 and 109 is successful, and the display message is “No error” "become. If the moving image file on the recording medium 108 has a decoding error and does not match the same file on the recording medium 109, the moving image file on the recording medium 108 has an error, and a message to that effect is displayed. If the moving image file on the recording medium 108 has a decoding error and matches the moving image file on the recording medium 109, there is an error in both moving image files, and a message to that effect is displayed. If the moving image file on the recording medium 108 has no decoding error and does not match the moving image file on the recording medium 109, a message indicating that the moving image file on the recording medium 109 has an error is displayed.

  As described above, in this embodiment, when confirming a moving image file simultaneously recorded on a plurality of recording media, the corresponding moving image file is read from the other recording medium while the moving image file on one recording medium is reproduced and output. Compare files. As a result, it is possible to confirm the identity of the file and the presence or absence of an error while viewing the contents in one playback operation as viewed from the user. When there is an error in one of the moving image files, it is possible to quickly inform the user which moving image file it is.

  In the present embodiment, the moving image file on the recording medium 108 is reproduced and output in the reproduction confirmation process. However, it is obvious that the moving image file on the recording medium 109 may be reproduced and output.

  In this embodiment, the playback confirmation process is executed when the user instructs the playback confirmation in the recording standby state immediately after the recording of the moving image file is stopped in the simultaneous recording mode. However, the present invention is not limited to this, and after switching to the playback mode, the user may select a moving image file to be played back from any recording medium and instruct the playback check process.

  In step S409 in FIG. 4, the moving image file itself is deleted. However, the present invention is not limited to this, and a portion where a decoding error has occurred may be selected and deleted. For example, in step S <b> 205, all portions where decoding errors occur in the moving image file being reproduced are stored in the memory 105. In step S409, the portion where the decoding error has occurred is deleted from the moving image file. When moving images and audio are encoded by the MPEG method, decoding is possible in units of GOPs. Therefore, a GOP including data in which a decoding error has occurred and audio data corresponding to the GOP may be deleted from the moving image file.

  In this embodiment, simultaneous recording is performed on two recording media. However, the present invention can be extended to simultaneous recording on three or more recording media.

  In the playback confirmation process, an explanation is given of an embodiment in which playback is stopped when a decoding error or file mismatch is detected during playback of a video file, and a message based on the error detection result and the data comparison result at that time is displayed. To do. FIG. 6 is a flowchart of the playback confirmation process of the embodiment. The same processes as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 6, when a decoding error is detected in step S204, the control unit 102 proceeds to step S603 and executes error processing.

  When the moving image file being played back ends in step S208, the control unit 102 instructs the recording medium control unit 106 to stop playing the moving image file (S601). The control unit 102 further instructs the display unit 110 to display a message indicating no error (S602).

  FIG. 7 is a flowchart showing the comparison process in the second embodiment. The same processes as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  When the data mismatch is notified (S304), the control unit 102 proceeds to S702 and executes error processing.

  When the moving image file being played ends (S308), the control unit 102 instructs the recording medium control unit 106 to stop playing the moving image file (S701).

  FIG. 8 shows a detailed flowchart of the error processing in steps S603 and S702. explain. The same processes as those in FIG. 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The control unit 102 instructs the recording medium control unit 106 to stop the reproduction of the moving image files from the respective recording media 108 and 109 (S801). Then, the control unit 102 performs a decoding process of a predetermined amount of encoded data reproduced from the recording medium 108 and stored in the memory 105 and a comparison process between the predetermined amount of encoded data stored in the memory 105. Wait for completion.

  The control unit 102 executes the confirmation process as described above according to the detection result of the decoding error and the file comparison result.

  In this embodiment, the control unit 102 executes error processing shown in FIG. 8 in response to detection of a decoding error or mismatch of file comparison. Accordingly, no error-free message as shown in step S414 is displayed.

Claims (3)

An input means for inputting video data;
Recording medium control means for recording the moving image data input by the input means to a plurality of recording media and reading the moving image data recorded from the plurality of recording media;
Control means for controlling the recording medium control means to simultaneously record the moving image data input by the input means on the plurality of recording media;
Error detection means for detecting an error in the moving image data read from any of the recording media by the recording medium control means;
Determining means for determining whether or not the moving image data simultaneously recorded on the plurality of recording media match;
Output means for outputting information to a display device,
The control means reads moving image data recorded simultaneously with the moving image data reproduced from the one recording medium from another recording medium while reading moving image data simultaneously recorded from one of the plurality of recording media. And controlling the recording medium control means to cause the error detection means to execute error detection processing of moving image data read from the one recording medium, and moving image data from the one recording medium and the other recording medium A recording apparatus comprising: causing the determination unit to execute a match determination with the moving image data from, and causing the output unit to output information corresponding to the detection result of the error detection unit and the match determination result of the determination unit.   The control means displays information corresponding to the detection result of the error detection means and the coincidence determination result of the determination means on the display means in response to the end of reproduction of the moving image data from the one recording medium. The recording apparatus according to claim 1, wherein:   The control means detects the error when an error is detected by the error detection means or a mismatch is detected by the determination means during reproduction of moving image data from the one recording medium. 2. The recording apparatus according to claim 1, wherein information corresponding to the detection result of the means and the coincidence determination result of the determination means is displayed on the display means.

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