JP2009071451A - Information processing apparatus, information processing method, and computer program - Google Patents

Abstract

An apparatus and method for creating a playlist that can be archived collectively on an external medium.
In creating a playlist that defines the playback order of content, playlist creation processing is performed assuming an external recording medium as a recording destination of registered content in the playlist. When registering new content to the playlist, it performs a capacity determination as to whether or not all of the playlist registered content can be recorded on an external recording medium, and registers the new content in the playlist on condition that it is recordable. To do. With this configuration, it is possible to reliably record on one recording medium such as one DVD when archiving (copying) the playlist registration content.
[Selection] Figure 1

Description

  The present invention relates to an information processing apparatus, an information processing method, and a computer program. More specifically, the present invention relates to an information processing apparatus, an information processing method, and a computer program that perform content copy processing (archive) between media (information recording media).

  As a recording medium (information recording medium) for recording video camera data, for example, a hard disk (HDD) or a flash memory (FlashMemory) is used. Such content recorded in a hard disk (HDD) or flash memory (FlashMemory) is copied (archived) to another medium that can be stored for a long time, such as a recording medium such as a DVD, and remains as data for storage. Processing is often done.

  However, the DVD, which is the mainstream medium for storing data for a long time, is a general 12 cm medium, and its storage capacity is about 4.7 GB. Also, Blu-ray Disc (registered trademark), whose market will expand in the future, has capacities of 25 GB and 50 GB, which is smaller than HDDs with capacities of several tens GB or more and FlashMemory, which is expected to increase in capacity in the future. Therefore, when a large amount of content is recorded on the HDD or FlashMemory set as the internal recording media of the video camera, it is not possible to archive all of the recorded content on an external recording medium such as a DVD, that is, copy record It may be impossible.

  As a coping method, a plurality of archive media (copy destination media) are used to divide the content recorded on the HDD or FlashMemory into a plurality of media for archiving (copy recording), or on the HDD or FlashMemory. Extracting only the content that you really want to store from the recorded content by editing, sorting, etc., limiting the archive content, and setting the data capacity of the archive content according to the recording capacity of the archive media (copy destination media) A method is conceivable.

  However, in order to adjust the data capacity of the archive content to the capacity according to the recording capacity of the archive medium (copy destination medium) by limiting the archive content to the latter method, that is, the user must select one of the content files. It is necessary to carry out a troublesome process of confirming one data capacity and selecting content so that the total becomes the recording capacity of the archive medium (copy destination medium) of the recording destination.

  Currently, some video cameras using a commercially available hard disk (HDD) as a recording medium have a playlist function that defines the playback order of the recorded contents of the media. That is, the user creates a playlist as a content reproduction order list, and the content is reproduced in the order set in the user-created playlist. Some have a function of connecting a video camera to a PC and recording only content registered in a playlist stored in the video camera on an archive medium such as a DVD.

  However, the playlist function in the existing system is originally intended to arbitrarily specify the playback order in the set, and is not created in consideration of the recording capacity of the archive media. Therefore, when archiving content to a DVD or the like according to this playlist, a plurality of media necessary for archiving are often required, and the content is divided into a plurality of media where the user does not intend. Problems such as being recorded occur.

  The present invention has been made in view of the above-described problems, for example, an information processing apparatus, an information processing method, and a computer program for creating a playlist in consideration of the recordable capacity of an archive medium (copy destination medium) The purpose is to provide.

The first aspect of the present invention is:
An information processing device,
An internal recording medium for storing content;
A playlist creation unit that creates a playlist that is a list that defines a playback order of content stored in the internal recording medium;
The playlist creation unit
It is a configuration that performs playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
When registering new content to the playlist, a capacity determination is performed as to whether or not all of the playlist registration content can be recorded on the external recording medium, and the new content is added to the playlist on condition that the recording is possible. Registered in the information processing apparatus.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the playlist creation unit acquires or calculates the remaining capacity of the external recording medium, and calculates the remaining capacity of the external recording medium and the capacity of the new content. A feature is that the capacity determination processing to be compared is executed.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the playlist creation unit acquires or calculates a used capacity of the external recording medium calculated corresponding to the registered content of the playlist, and It is characterized in that a capacity determination process is executed to determine whether or not the total capacity obtained by adding the contents capacity does not exceed the total capacity of the external recording medium.

  Furthermore, in an embodiment of the information processing apparatus according to the present invention, the playlist creation unit includes a content entity data capacity of the new content and a management information capacity corresponding to the content entity data as the capacity of the new content. It is the structure which calculates the capacity | capacitance combined with these, and performs the said capacity | capacitance determination process.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the playlist creation unit records the remaining capacity or used capacity information of the external recording medium to be applied to the capacity determination process on the internal recording medium. The present invention is characterized in that it is configured to execute processing that is obtained from storage data of management information or calculated by applying storage data.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the playlist creation unit, when the playlist registration content is updated by registration, deletion or editing of the content with respect to the playlist, in response to the playlist update, The configuration is characterized in that the management information is updated.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the management information is management information defined in an AVCHD format.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the management information is an index file or a playlist file defined in the AVCHD format.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the playlist creation unit is configured to execute a creation process of a virtual playlist defined in the AVCHD format.

Furthermore, the second aspect of the present invention provides
An information processing method executed in an information processing apparatus having an internal recording medium storing content,
The playlist creation unit has a playlist creation step of creating a playlist that is a list that defines a playback order of content stored in the internal recording medium;
The playlist creation step includes:
It is a step of performing playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
A capacity determination step of performing capacity determination as to whether or not all of the playlist registration contents can be recorded on the external recording medium when registering new contents to the playlist;
In the information processing method, the capacity determination step includes a registration step of registering the new content in a playlist on condition that the recording is possible.

  Furthermore, in an embodiment of the information processing method of the present invention, the capacity determination step acquires or calculates a remaining capacity of the external recording medium, and compares the remaining capacity of the external recording medium with the capacity of the new content. It is a step which performs the capacity | capacitance determination process to perform.

  Furthermore, in an embodiment of the information processing method of the present invention, the capacity determination step acquires or calculates a used capacity of the external recording medium calculated corresponding to the registered content of the playlist, and the new content This is a step of executing a capacity determination process for determining whether or not the total capacity obtained by adding the total capacity does not exceed the total capacity of the external recording medium.

  Furthermore, in an embodiment of the information processing method of the present invention, the capacity determination step includes a capacity of content entity data of the new content and a capacity of management information corresponding to the content entity data as the capacity of the new content. This is a step of calculating a capacity combined with the above and executing a capacity determination process.

  Furthermore, in one embodiment of the information processing method of the present invention, the capacity determination step includes managing the remaining capacity or used capacity information of the external recording medium to be applied to the capacity determination process, recorded on the internal recording medium. It has the step which performs the process which calculates it by acquiring from storage data of information or applying storage data, It is characterized by the above-mentioned.

  Furthermore, in one embodiment of the information processing method of the present invention, in the information processing method, when the playlist registration content is updated by registration, deletion or editing of the content with respect to the playlist, the playlist creation unit includes: The management information is updated according to the playlist update.

  Furthermore, in one embodiment of the information processing method of the present invention, the management information is management information defined in the AVCHD format.

  Furthermore, in an embodiment of the information processing method of the present invention, the management information is an index file or a playlist file defined in the AVCHD format.

  Furthermore, in one embodiment of the information processing method of the present invention, the playlist creation step is a step of executing a virtual playlist creation process defined in the AVCHD format.

Furthermore, the third aspect of the present invention provides
A computer program for executing information processing in an information processing apparatus having an internal recording medium storing content;
A playlist creation step for causing the playlist creation unit to create a playlist that is a list that defines a playback order of the content stored in the internal recording medium;
The playlist creation step includes:
It is a step of performing playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
A capacity determination step of performing capacity determination as to whether or not all of the playlist registration contents can be recorded on the external recording medium when registering new contents to the playlist;
The capacity determining step includes a registration step of registering the new content in a playlist on condition that the recording is possible.

  The computer program of the present invention is, for example, a computer program that can be provided by a storage medium or a communication medium provided in a computer-readable format to a general-purpose computer system that can execute various program codes. . By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of one embodiment of the present invention, in creating a playlist that defines the playback order of content, playlist creation processing is performed assuming that an external recording medium is a recording destination of registered content in the playlist, When registering new content, a capacity determination is made as to whether or not all of the playlist registered content can be recorded on the external recording medium, and the new content is registered in the playlist on condition that it is recordable. With this configuration, it is possible to reliably record on one recording medium such as one DVD when archiving (copying) the playlist registration content.

  Details of the information processing apparatus, information processing method, and computer program of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the configuration of an information processing apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart for explaining a playlist creation processing sequence executed in the information processing apparatus. A playlist creation unit 100 of the information processing apparatus illustrated in FIG. 1 is a playlist creation unit provided in a video camera as an information processing apparatus, for example, and is an internal recording configured by, for example, a hard disk (HDD) or a flash memory (FlashMemory). A playlist corresponding to the content stored in the medium 110 is created.

  The playlist creation unit 100 performs a playlist creation process as the playback order information of content stored in the internal recording medium 110. The information processing apparatus according to the present invention performs processing in consideration of the recordable capacity of the external recording medium 121 that is an archive medium (copy destination medium) in the playlist creation process.

  As shown in FIG. 1, an information processing apparatus according to an embodiment of the present invention includes a user input unit 101, a content capacity acquisition unit 102, a recording destination medium required capacity calculation unit 103, a recording destination medium remaining capacity calculation unit 104, and a medium. It has an interface (I / F) 105, a record availability determination unit 106, a data recording update processing unit 107, an output unit 108, and an internal recording medium 110. An external recording medium 121 that is an archive medium (copy destination medium) is a medium that is attached to the information processing apparatus shown in FIG. 1 as a copy destination of the content stored in the internal recording medium 110, and is a medium such as a DVD. The user input unit 101 and the output unit 108 are configured by a user interface (UI) including a display provided in a video camera, for example.

  The playlist creation unit 100 includes a content capacity acquisition unit 102, a recording destination medium required capacity calculation unit 103, a recording destination medium remaining capacity calculation unit 104, a recording availability determination unit 106, and a data recording update processing unit 107.

  In the configuration shown in the figure, the information processing apparatus has a media I / F 105 and can be mounted with an external recording medium 121. However, for example, other information such as a DVD recording apparatus or a PC can be provided by cable output or the like. It is good also as a structure which connects to an apparatus and outputs archive content via a cable.

  A playlist creation processing sequence will be described according to the flowchart shown in FIG. 2 with reference to the configuration of FIG. Step S101 is a step of acquiring the remaining amount of the external recording medium and designated content information.

  First, before creating a playlist, the remaining amount information of the external recording medium selected as the archive medium (copy destination medium) and the selection information of the content to be actually archived are acquired.

  The information on the remaining amount of the external recording medium is information input by the user via the input unit 101 or the recording destination medium remaining capacity calculation unit 104 of the external recording medium 121 mounted via the media interface (I / F) 105. The remaining capacity information may be acquired, or may be acquired or calculated from management information recorded on the internal recording medium 11 corresponding to the stored content of the internal recording medium 110. An example of processing for calculating the recording destination medium remaining amount from the management information recorded on the internal recording medium 110 will be described later.

In the case of information input by the user via the input unit 101, for example, as shown in FIG. 3, a plurality of types of media information may be presented on a display serving as a user interface so that the user can select. That is,
(A) DVD (12 cm, 4.7 GB),
(B) DVD (8 cm, 1.4 GB),
(C) BD (12 cm, 25 GB),
Such a media information list may be presented to select a medium as an archive medium (copy destination medium), and the selection information may be input. In addition, BD means Blu-ray Disc.
Or it is good also as a structure which makes a user input the numerical value of media capacity directly.

Thus, in step S101, the remaining dose information of the external recording medium is
User input or
Acquisition of remaining capacity information of the external recording medium 121 mounted via the media interface (I / F) 105, or
Acquired or calculated from management information recorded on the internal recording medium 11 corresponding to the stored content of the internal recording medium 110;
Acquired by any of these processes. This determines the amount of data that can be registered in the playlist. This size is defined as the remaining recording medium capacity (recordable capacity).

  Furthermore, in step S101, content selection information that is actually desired to be archived is acquired by user input via the input unit 101.

  Next, in step S102, the data capacity of the designated content is acquired. This process is executed as the process of the content capacity acquisition unit 102 shown in FIG. The internal recording medium 110 records data in a predetermined format set in advance, and acquires content data capacity information from this data.

  As an example of the data format stored in the internal recording medium 110, FIG. 4 shows an example of a directory structure when data storage is performed according to the AVCHD format, which is a recording format of high-definition data, that is, HD (High-Definition) digital data. The description will be given with reference.

  The AVCHD format is, for example, a format in which a moving image stream shot by a video camera is encoded into an MPEG2-TS stream and recorded, and has a hierarchical data management configuration.

This AVCHD format includes
Index (index) with index information such as content title,
Movie object (MovieObject) that stores content playback programs,
Play list (PlayList) as playback order information,
Clip information including playback position information (ClipInformation),
Clip AV stream (ClipAVStream) corresponding to actual content data,
Each of these files is included.

  In this AVCHD format, the recorded actual data is a clip AV stream (ClipAVStream) file, shown in FIG. The management information corresponding to the actual data is recorded in each management information file of the index (index), movie object (MovieObject), playlist (PlayList), clip information (ClipInformation). Has been.

  As shown in FIG. 4, directories [AVCHD] and [BDMV] are set under the root directory, and the index file [index. bdmv] and movie object file [MovieObject. bdmv], playlist directory [PLAYLIST], clip information directory [CLIPINF], and stream directory [STREAM].

  In the playlist directory [PLAYLIST], two types of playlists can be set as a playlist: a real playlist (real playlist) and a virtual playlist (virtual playlist).

  The real play list is a play list for the original title, and is a play list in which the playback order is defined in the order in which play items for the video stream recorded / captured by the video camera are recorded.

  A virtual playlist is a playlist that a user can freely create. The playlist created according to the flow shown in FIG. 2 is this virtual playlist. In the information processing apparatus of the present invention, when creating the virtual playlist, processing is performed in consideration of the recordable capacity of the external recording medium 121 that is an archive medium (copy destination medium).

  Returning to the description of the processing flow in FIG. In step S102, when the content capacity acquisition unit 102 shown in FIG. 1 acquires the data capacity of the content designated as an archiving target from the storage information of the internal recording medium 110, in step S103, based on the content data capacity. Then, a process for calculating the required capacity of the recording destination medium is executed. This processing is executed as processing of the recording medium required capacity calculation unit 103 shown in FIG.

The required capacity of the recording medium is almost equal to the data capacity of the content acquired in step S102. However, as described with reference to FIG. 4, when archiving, it is necessary to record not only the actual data of the content but also management information corresponding to the content, and the content data capacity acquired in step S102. A slightly larger capacity is actually required. However, the increase in the management information file is extremely small compared to the content entity,
The required capacity of the recording medium may be calculated as content data capacity.
Alternatively, in consideration of the increase in management information, a preset capacity value [α] is applied,
Required capacity of recording media = Content data capacity + α,
It is good also as a structure calculated as.

  In step S104, the required capacity of the recording destination medium obtained in step S103 is compared with the remaining amount (recordable capacity) of the external recording medium. Note that the remaining amount of the external recording medium is the data acquired or calculated in step S101, and is the recording data of the management information acquired by the user or from the attached external recording medium 121 or recorded on the internal recording medium 110. Data obtained or calculated from An example of processing for calculating the recording destination medium remaining amount (recordable capacity) from the management information recorded on the internal recording medium 110 will be described later.

The comparison process between the necessary capacity of the recording destination medium and the remaining amount (recordable capacity) of the external recording medium in step S104 is executed as a process of the recordability determination unit 105 shown in FIG. That is, it is determined whether or not the remaining amount of the external recording medium is larger than the necessary capacity of the recording destination medium obtained in step S103. In particular,
Remaining amount of external recording medium (recordable capacity)> required capacity of recording destination medium It is determined whether or not the above equation holds.

  The recordability determination unit 105 can record the user-specified content on the external recording medium 121 if the above formula is satisfied, and cannot record the user-specified content on the external recording medium 121 if the above formula is not satisfied. to decide.

  If the above formula does not hold, the process proceeds to step S108 to notify that the content cannot be registered in the playlist due to the capacity over. For example, a process of displaying message data indicating that the content cannot be registered in the playlist due to a capacity excess is performed on the display constituting the output unit 108 shown in FIG.

  On the other hand, if it is determined that the above formula is satisfied and the user-specified content can be recorded on the external recording medium 121, the processing of steps S105 to S107 is executed. The processes of steps S105, S106, and S107 are executed as the process of the data record update processing unit 107 shown in FIG.

  First, in step S105, the user-specified content is registered in the playlist. This playlist is, for example, a virtual playlist in the AVCHD format described above with reference to FIG. A process of registering the user-designated content as reproduction designated content in the virtual playlist is performed.

  Thereafter, in step S106, the capacity (required capacity) of the playlist registration content is subtracted from the remaining recording medium capacity (recordable capacity) to calculate an updated value of the remaining recording medium capacity (recordable capacity). The data recording update processing unit 107 records this update value in the management information of the internal recording medium 110. The management information is management information corresponding to content recorded on the internal recording medium 110, such as an index file or a playlist.

  The data to be recorded as management information may be the updated value of the recording medium remaining amount (recordable capacity) itself, or data that can calculate the value of the recording medium remaining amount (recordable capacity), for example, recorded on an external recording medium. It may be data such as the number of content items and the capacity (size) of each content item. The configuration of data recorded in the management information and an example of its use will be described in detail later.

  Thereafter, in step S107, the user is notified of completion of playlist registration. For example, a message indicating completion of playlist registration is displayed on the output unit 108 shown in FIG.

  Thus, in the information processing apparatus of the present invention, when creating a playlist, a specific external recording medium, that is, an archive (copy destination) medium is assumed, the remaining amount (recordable capacity) of the external recording medium, the play list, Whether the remaining capacity (recordable capacity) of the external recording medium is larger than the data size required to record the content by comparing the data size required to record the content to be registered in the list And is registered in the playlist on the condition that it is confirmed that it is large. By this processing, playlist registered contents can be collectively recorded on a specific external recording medium, that is, archived (copied).

  Also, record the remaining amount of recording media (recordable capacity) or data that can be used to calculate the remaining amount of recording media in the management information such as index files and playlists, and when registering new content in the playlist, A new recording medium remaining amount that is updated by subtracting the data size necessary for recording the registered content from the remaining capacity of the recording medium, or data corresponding to the content recorded in the internal recording medium 110 can be calculated. It is recorded in management information, that is, management information such as an index file or a playlist. This process is executed for each new content registration process for a playlist.

  If the data size of the content newly selected as a playlist registration candidate by the user has become larger than the recording medium remaining amount acquired or calculated from the recording data of management information such as an index file or a playlist, This is notified to the user, and the content is not registered in the playlist.

As described above, the recording medium remaining amount (recordable capacity) is input or acquired in step S101 shown in FIG. 2, but when adding new content to the already created playlist, The recording medium remaining amount is acquired or calculated from the recording data of the management information corresponding to the playlist recorded in the internal recording medium 110, and the acquired or calculated recording medium remaining amount and the user selected as a playlist registration candidate Compare with the data size of the content. That is,
The remaining amount of the external recording medium acquired or calculated from the recording data of the management information> the required capacity of the recording destination medium It is determined whether or not the above formula is satisfied.

  If the above formula is satisfied, the recordability determination unit 105 can record the user-specified content on the external recording medium 121. If the above formula is not satisfied, the user-specified content cannot be recorded on the external recording medium 121. to decide. If the above formula does not hold, the process proceeds to step S108 to notify that the content cannot be registered in the playlist due to the capacity over. For example, a process of displaying message data indicating that the content cannot be registered in the playlist due to a capacity excess is performed on the display constituting the output unit 108 shown in FIG.

  On the other hand, if it is determined that the above formula is established and the user-specified content can be recorded on the external recording medium 121, the processing of steps S105 to S107 is executed. The processes of steps S105, S106, and S107 are executed as the process of the data record update processing unit 107 shown in FIG. In this case, in step S106, an update process of the recording medium remaining amount (recordable capacity) before the playlist registration of the new user-specified content is executed, and the update data is associated with the playlist already recorded in the internal recording medium 110. To be recorded as management information recording data.

  That is, the capacity (required capacity) of the playlist registration content is subtracted from the remaining recording medium capacity (recordable capacity) before the playlist registration of the new user-specified content to calculate the updated value of the remaining recording media capacity. The data recording update processing unit 107 records this update value in the management information of the internal recording medium 110. The management information is management information corresponding to content recorded on the internal recording medium 110, such as an index file or a playlist.

  Note that the data recorded in the management information may be the value of the recording medium remaining amount (recordable capacity) itself, or may be data capable of calculating the recording medium remaining amount. Execute according to the recorded data.

  In addition, if a part of the content already registered in the playlist created by the user is deleted or deleted from the playlist, the remaining amount of recording media (recordable capacity) will increase. The data recording update processing unit 107 executes an update process for calculating a new recording medium remaining amount by adding the deleted and deleted data size to the current recording medium remaining amount, and updates data to the internal recording medium 110 is recorded as record data of management information corresponding to the playlist already recorded.

  In this way, the information processing apparatus according to the present invention creates a playlist in which a content having a data capacity corresponding to the media capacity is registered assuming a specific archive medium. By performing the archiving process using the playlist created by this method in the same manner as a conventional device, it is possible to reliably record the playlist registration content on one recording medium.

Next, with reference to FIG. 5 and subsequent figures, a specific example of the processing of step S105 and step S106 in the flow shown in FIG. 2 will be described. That is,
Content registration processing for the playlist in step S105;
A process of recording or updating the data for calculating the recording medium remaining amount (recordable capacity) in step S106 in the management information;
Details of these processes will be described.

  First, a specific processing example of content registration processing for a playlist in step S105 will be described with reference to FIG. The content registration processing example for the playlist described with reference to FIG. 5 is a processing example when the playlist function employed in the video camera is set to be capable of managing a plurality of playlists simultaneously. For example, in the AVCHD format described above with reference to FIG. 4, a plurality of playlists can be managed simultaneously.

  That is, in the AVCHD format, it is possible to set two types of playlists, a real playlist (real playlist) and a virtual playlist (virtual playlist) as playlists. The real play list is a play list for the original title, and is a play list in which the playback order is defined in the order in which play items for the video stream recorded / captured by the video camera are recorded.

A virtual playlist is a playlist that a user can freely create. For example,
Virtual playlist a: 4.7 GB-DVD playlist,
Virtual playlist b: 1.4GB-DVD playlist,
Virtual playlist c: playlist for 25 GB-BD,
In this way, the virtual playlist can be set as a playlist corresponding to a specific external recording medium.

  Among a plurality of playlists set by the information processing device, a certain playlist may be set as a playlist that does not take capacity into consideration as usual, that is, a playlist intended only for playback in an information processing device such as a video camera. Good. When a large amount of content is stored in a plurality of media by the user's intention, the user can freely edit and create these.

  In the example shown in FIG. 5, the playlist shown in FIG. 5A is a playlist that does not take capacity into consideration as usual, that is, a playlist that is intended only for playback within an information processing apparatus such as a video camera (real play). The playlist shown in FIG. 5B is a virtual playlist created by the user. This virtual playlist is created as a 4.7 GB-DVD playlist.

  When creating this virtual playlist, the user selects content to be registered in the virtual playlist. In addition, [chapn] shown in the figure means chapter n and corresponds to content n. In the AVCHD format, a content unit is set as a chapter. Further, the length of each content [chap] is shown corresponding to the data amount of the content.

  When selecting content (chapter) to be newly registered in the virtual playlist, the real playlist shown in FIG. 5A can be used. A real playlist is a playlist in which the playback order is defined in the order in which play items are recorded for video streams recorded and shot by a video camera as described above, and is automatically recorded and updated during the recording and shooting processing by the video camera. Is done.

  The user displays the content information registered in the real play list on the display as the output unit 108, and the content to be registered in the virtual play list corresponding to the specific external recording medium shown in FIG. You can choose. After this content selection is made, processing according to the flow described above with reference to FIG. 2 is executed.

For example, as shown in FIG. 5B, content already registered in the virtual playlist is
Content 3 (chap3),
Content 4 (chap4),
Content 1 (chap1),
Content 6 (chap6),
Content 8 (chap8),
, It is assumed that the user selects content 7 (chap 7) as new registered content.

  FIG. 5C is a diagram for explaining a processing example at this time. FIG. 5C shows the entire 4.7 GB-DVD data and the data capacity of the registered content of the virtual playlist shown in FIG. The top data area 301 is a recording area for management information files other than the content entity.

  In this case, the virtual playlist corresponding to the specific external recording medium shown in FIG. 5B is a virtual playlist for 4.7 GB-DVD, and a plurality of contents have already been registered. The remaining amount (recordable capacity) of the external recording medium at this time corresponds to the area 302 shown in FIG. The value of the remaining amount (recordable capacity) of the external recording medium is acquired or calculated from the recording data of the internal recording medium 110. That is, it is acquired or calculated from the data recorded in the management information set corresponding to the virtual playlist shown in FIG.

The playlist creation unit performs the process of step S104 in the flow shown in FIG.
Remaining amount of external recording medium acquired or calculated from management information> required capacity of recording destination medium It is determined whether or not the above formula is satisfied.
For example, in the example shown in FIG.
Remaining dose of external recording media = xGB
And
When the required capacity of the recording destination medium required for the recording process of the content 7 (chap 7) that is the user-selected content is larger than xGB,
The remaining amount of the external recording medium acquired or calculated from the management information> the required capacity of the recording destination medium The above formula does not hold.
In this case, the process advances to step S108 to notify that the content cannot be registered in the play list due to the capacity being over. For example, a process of displaying message data indicating that the content cannot be registered in the playlist due to a capacity excess is performed on the display constituting the output unit 108 shown in FIG.

As explained earlier, the required capacity of the recording media is
It may be calculated as the required capacity of the recording medium = the data capacity of the content. However, not only the actual data of the content but also the increased capacity of the management information etc. corresponding to the content is taken into consideration. α]
Required capacity of recording media = Content data capacity + α,
It is good also as a structure calculated as.

  When content 7 (chap 7) is selected as newly registered content, processing for displaying message data indicating that the content cannot be registered is executed, and additional registration cannot be performed.

On the other hand, when the user selects content 9 (chap 9) as new registered content, the required capacity of the recording destination medium required for the recording process of content 9 (chap 9), which is the user-selected content, is xGB or less. ,
Remaining amount of external recording media acquired or calculated from management information> required capacity of recording destination media The above equation holds.

  In this case, the determination in step S104 of the flow shown in FIG. 2 is [Yes], and the processes in steps S105 to S107 are performed. That is, in step S105, content 9 (chap9) is additionally registered in the virtual playlist shown in FIG. 5B, and in step S106, management information corresponding to the content recorded on the internal recording medium 110, For example, the recording medium remaining amount (recordable capacity) registered in the index file or playlist or the data for calculation thereof is updated.

  That is, the capacity (required capacity) of the content newly registered in the playlist is subtracted from the current recording medium remaining amount (recordable capacity), and a new recording medium remaining amount is calculated and recorded in the management information. . Alternatively, when data for calculating the recording medium remaining amount is recorded as management information, the data is updated.

  Next, with reference to FIGS. 6 to 10, a specific example of recording data for calculating remaining recording medium information in management information according to the AVCHD format will be described. The recording medium remaining amount information or the calculation data can be recorded, for example, in an index file or a playlist file defined as management information in the AVCHD format.

  First, with reference to FIG. 6 and FIG. 7, an example in which recording medium remaining amount information or data for calculation thereof is recorded in an index file defined as management information in the AVCHD format will be described.

  FIG. 6A shows a syntax indicating the entire index file defined as management information in the AVCHD format. The detailed configuration of the extension data area (blkExtensionData) set in the index file is data shown in FIG. 6B.

  Further, the detailed configuration of the data block area (DataBlock) set in the extension data area (blkExtensionData) shown in FIG. 6B is data shown in FIG. 7C. Furthermore, the detailed configuration of the maker private data area (blkMakersPrivateData) set in the data block area (DataB; ock) shown in FIG. 7C is data shown in FIG. 7D.

  The manufacturer private data area (blkMakersPrivateData) shown in FIG. 7 (d) is a data recording area that can be freely used by the manufacturer of the apparatus that executes the data recording / playback processing according to the AVCHD format. This manufacturer private data area (blkMakersPrivateData) A specific data block (DataBlock) set in (1) can be used as a recording medium remaining amount (recordable capacity) or a recording area for the calculation data.

  The data recording update processing unit 107 of the playlist creating unit 100 shown in FIG. 1 acquires an index file according to the AVCHD format recorded in the internal recording medium 110 in step S106 shown in FIG. In the specific data block of the maker private data area (blkMakersPrivateData) shown in FIG. 7 (d), the recording medium remaining amount (recordable capacity) corresponding to each virtual playlist file or its calculation data is recorded and updated. Perform the process.

Further, the capacity comparison process in step S104, that is,
Remaining amount of external recording media acquired or calculated from management information> Required capacity of recording destination media When executing this capacity comparison process, an index file is acquired and the manufacturer shown in FIG. Acquire recording medium remaining amount (recordable capacity) information corresponding to the virtual playlist file recorded in a specific data block of the private data area (blkMakersPrivateData), or calculate from the calculation data and follow the above formula Execute capacity comparison processing.

  In addition, when a plurality of playlists are set, the recording medium remaining amount (recordable capacity) information is recorded corresponding to each playlist file, so each recording medium remaining amount information or It is necessary to record together with identification information indicating which playlist file the calculation data corresponds to.

  6 and 7, an example in which recording medium remaining amount (recordable capacity) information or calculation data thereof is recorded in an index file has been described. However, this information may be recorded in, for example, a playlist file. . In this case, recording medium remaining amount information unique to the set playlist file or data for calculation thereof is recorded corresponding to each playlist.

  FIG. 8A shows a syntax indicating the entire playlist file defined as management information in the AVCHD format. The detailed configuration of the extension data area (blkExtensionData) set in the playlist file is data shown in FIG. 8B.

  Furthermore, the detailed configuration of the data block area (DataB; ock) set in the extension data area (blkExtensionData) shown in FIG. 8B is data shown in FIG. 9C. Further, details of the maker private data area (blkMakersPrivateData) set in the data block area (DataB; ock) shown in FIG. 9C are data shown in FIG. 9D.

  The manufacturer private data area (blkMakersPrivateData) shown in FIG. 9D is a data recording area that can be freely used by the manufacturer of the apparatus that executes the data recording / playback processing according to the AVCHD format. This manufacturer private data area (blkMakersPrivateData) A specific data block (DataBlock) set in (1) can be used as a recording medium remaining amount (recordable capacity) or a recording area for the calculation data.

  The data recording update processing unit 107 of the playlist creating unit 100 shown in FIG. 1 acquires a playlist file according to the AVCHD format recorded in the internal recording medium 110 in step S106 shown in FIG. In the file, record the remaining amount of recording medium (recordable capacity) corresponding to each virtual playlist file or data for calculation thereof in a specific data block of the maker private data area (blkMakersPrivateData) shown in FIG. 9 (d). , Process to update.

Further, the capacity comparison process in step S104, that is,
Remaining amount of external recording medium acquired or calculated from management information> required capacity of recording medium When executing this capacity comparison process, a playlist file is acquired and FIG. 9 (d) in the playlist file The above formula is obtained by obtaining the recording medium remaining amount (recordable capacity) information corresponding to the virtual playlist file recorded in the specific data block of the maker private data area (blkMakersPrivateData) shown in FIG. The capacity comparison process is executed.

  An example of recorded data of data for calculating a recording medium remaining amount (recordable capacity) recorded in a data block in the maker private data area (blkMakersPrivateData) in the index file or playlist file will be described with reference to FIG.

In the data block in the maker private data area (blkMakersPrivateData) in the index file or the playlist file, for example, data as shown in FIG. 10, that is, the following data is recorded.
TypeIndicator: data defining the data type,
NumOfContents: the total number of registered contents,
SumOfStreamFileSize: total stream file size of all registered contents,
SizeOfIndexTableFile: INDEX. The size of the BDM file,
SizeOfMovieviewFile: MOVIEOBJ. The size of the BDM file,
NumOfMoviePlayListFiles: number of playlists to be generated,
SizeOfPlayListFile: size of playlist file,
NumOfContentsInPlayList: number of contents registered in the playlist,
SizeOfClipInfoFile: Size of the ClipInfo file of the registered content,
SizeOfStreamFile: Size of the registered content Stream file,

  The data shown in FIG. 10, that is, the data described above, is data that can be applied as data for calculating the remaining amount of recording medium (recordable capacity). The data block in the maker private data area (blkMakersPrivateData) in the index file or the playlist file is a data recording area that can be freely used by the maker of the apparatus that executes the data recording / playback process according to the AVCHD format. The above data shown in FIG. 10, that is, data for calculating the remaining recording medium amount (recordable capacity) is recorded in (DataBlock).

  The example shown in FIG. 10 is an example in which the data for calculating the recording medium remaining amount (recordable capacity) is recorded in the data block in the manufacturer private data area (blkMakersPrivateData) in the index file or playlist file. Instead of such calculation data, the recording medium remaining amount value itself may be set to be recorded in the data block.

  When there is a change in the recording medium remaining amount (recordable capacity), that is, when new content is registered or deleted from the playlist, the data recording update processing unit 107 of the playlist creating unit 100 shown in FIG. Then, processing for updating the recording data in the management information is executed. For example, in step S106 shown in FIG. 2, the recording data of this data block (DataBlock) is updated.

In step S101 shown in FIG. 2, the latest recording medium remaining amount (recordable capacity) is acquired or calculated based on the recording data in the management information, and the capacity comparison process in step S104, that is,
Remaining amount of external recording media acquired or calculated from management information> Required capacity of recording destination media When performing this capacity comparison process, the latest external recording media acquired or calculated based on the recording data in management information The value of the remaining dose is applied and the volume comparison process is executed.

  Data update processing in the configuration in which the data for calculating the recording medium remaining amount (recordable capacity) shown in FIG. 10 is recorded in the management information, that is, for changing the recording medium remaining amount when new content is registered in the playlist. The accompanying data update processing sequence will be described with reference to the flowchart shown in FIG. FIG. 12 is a view for explaining data calculated in the flowchart shown in FIG.

The flowchart shown in FIG.
Steps S201 to S204: Steps for calculating the recorded capacity (total usage amount = X) of the media based on the contents registered in the playlist, the data capacity X401 shown in FIG.
Step S205: Step of calculating the assumed total usage (Z) when the increase in capacity (Y + 10 + 10) due to the newly registered content is added to (total usage = X), which is the data capacity Z402 shown in FIG.
Step S206: a step of determining whether or not newly registered content can be registered;
Steps S208 to 210: Processing steps when new registration scheduled content can be registered (corresponding to steps S105 to S107 in the flow of FIG. 2)
Step S211: Processing step in the case where newly registered contents cannot be registered (corresponding to step S108 in the flow of FIG. 2)
Each of these steps is shown.

  Processing in steps S201 to S204 will be described. This process is executed as a process of the recording destination medium remaining capacity calculation unit 104 shown in FIG. The recording destination medium remaining capacity calculation unit 104 applies the recording medium remaining amount (recordable capacity) calculation data recorded in the management information shown in FIG. Calculation processing of usage amount = X) is performed.

First, in step S201,
Index files,
Movie object files,
Playlist files,
Each clip information file is 1 file = 10 KB. The numerical value of 10 KB is merely an example, and it is preferable to use a value corresponding to the average capacity of each file.

In step S202, the number of playlist files (NumOfMoviePlayLixtFiles) included in the recording medium remaining amount (recordable capacity) calculation data recorded in the management information shown in FIG. 10 is obtained, and the following calculation formula,
Number of playlist files (NumOfMoviePlayLixtFiles) x 10KB
The above calculation is executed to calculate the total capacity (PL) of the playlist file.

Next, in step S203, the number of contents (NumOfContent) included in the recording medium remaining amount (recordable capacity) calculation data recorded in the management information shown in FIG. 10 is acquired, and the following calculation formula,
Number of contents (NumOfContent) x 10KB
The above calculation is executed to calculate the total capacity (CI) of the clip information file.

Next, in step S204, the stream file size total capacity (SumOfStreamFileSize) included in the recording medium remaining amount (recordable capacity) calculation data recorded in the management information shown in FIG.
The capacity (ST) of the stream file is obtained.

Next, in step S205, based on the calculation results in steps S201 to S204, the total usage amount (X) by the registered content of the current playlist is calculated.
In particular,
Total usage (X)
= 10KB (index file) + 10KB (movie object file)
+ (PL) + (CI) + (ST)
It becomes. This is the total usage amount X401 shown in FIG.

  One index file and one movie object file are set. That is, when archiving (copying) content in accordance with the AVCHD format, it is necessary to record a data set according to the directory structure described above with reference to FIG. 4 on an external recording medium. In steps S201 to S205, the total capacity of content (stream file) and management data (index etc.) corresponding to content already registered in the playlist is calculated.

In step S206, the following data capacity corresponding to the newly registered content is added to the total usage (X) calculated in step S205, that is,
Stream file size (STnew)
Clip information file size (10KB)
Playlist file (10KB),
The estimated total capacity [Z] when the newly registered content is additionally registered is calculated by adding the data capacity of these additional schedules. The assumed total capacity [Z] is calculated by the following equation.
Z = X + STnew + 10 + 10
This is the assumed total capacity Z402 shown in FIG. When content is additionally registered, one clip information file and one playlist file are added as management information.

In step S207, the assumed total capacity [Z] when the newly registered content to be newly calculated calculated in step S206 is additionally registered, and the total recording capacity [Mall] of the external recording medium (external media recording total capacity [Mall] shown in FIG. 12). 403). That is,
Total recording capacity [Mall]> Assumed total capacity [Z]
It is determined whether or not the above equation holds. This process corresponds to the determination process in step S104 of the flow shown in FIG. 2, and is a determination process performed by the recordability determination unit 105.

In step S207,
Total recording capacity [Mall]> Assumed total capacity [Z]
The recordability determination unit 105 can record the user-specified content on the external recording medium 121 if the above formula is satisfied, and cannot record the user-specified content on the external recording medium 121 if the above formula is not satisfied. to decide.

  If the above formula does not hold, the process proceeds to step S211 to notify that the content cannot be registered in the playlist due to the capacity over. For example, a process of displaying message data indicating that the content cannot be registered in the playlist due to a capacity excess is performed on the display constituting the output unit 108 shown in FIG.

  On the other hand, if it is determined that the above formula is established and the user-specified content can be recorded on the external recording medium 121, the processing of steps S208 to S210 is executed. The processing of steps S208, S209, and S210 is executed as processing of the data recording update processing unit 107 shown in FIG.

  First, in step S208, the user-specified content is registered in the playlist. This playlist is, for example, a virtual playlist in the AVCHD format described above with reference to FIG. A process of registering the user-designated content as reproduction designated content in the virtual playlist is performed.

Thereafter, in step S209, the recording medium remaining amount (recordable capacity) calculation data in the management information described above with reference to FIG. 10 is updated. The data that needs to be updated is, for example, the following data.
NumOfContents: the total number of registered contents,
SumOfStreamFileSize: total stream file size of all registered contents,
NumOfMoviePlayListFiles: number of playlists to be generated,
SizeOfPlayListFile: size of playlist file,
NumOfContentsInPlayList: number of contents registered in the playlist,
SizeOfClipInfoFile: Size of the ClipInfo file of the registered content,
SizeOfStreamFile: Size of the registered content Stream file,

  When the data update in the management information is completed in step S209, the user is notified of completion of playlist registration in step S210. For example, a message indicating completion of playlist registration is displayed on the output unit 108 shown in FIG.

  In this way, when the recording medium remaining amount (recordable capacity) calculation data is recorded in the management information, the content can be copied by registering the newly registered content using the recording medium remaining amount calculation data. It is determined whether or not the capacity of the recording medium as the destination is exceeded, and whether or not the playlist can be registered is determined. Registration of the newly registered content may not exceed the capacity of the recording medium as the content copy destination. When the confirmation is confirmed, the registration processing to the playlist is executed, and thereafter, the update processing of the recording medium remaining amount calculation data as the management information is performed.

  It should be noted that the structure of the recording medium remaining amount (recordable capacity) calculation data in the management information described above with reference to FIG. 10 and the remaining recording medium to which these recording data described with reference to FIG. 12 are applied. The dose calculation processing example is an example, and the configuration of the recording medium remaining dose calculation data recorded in the management information can be set other than the setting shown in FIG. 10, and the recording medium remaining dose is calculated according to the setting. And updates will be executed.

For example, the recording medium remaining amount (recordable capacity) may be calculated by the following processing sequence.
Step 1: The usage amount of the index file and movie object file is calculated by applying the number of playlists [NumOfMoviePlayListFiles] and the number of contents [NumOfContents] recorded in the management information.
Step 2: The playlist file size is calculated based on the number of registered contents recorded in the management information.
Step 3: The total capacity of the stream file and clip information file is calculated by calculating the sum of the stream file size and clip information file size of each content recorded in the management information.
Step 4: The current usage amount is calculated from the sum of the calculated values in Steps 1 to 3.

The current usage amount is calculated by the processing in steps 1 to 4 above, and the newly added registration scheduled content to be newly added is
Stream file size,
Clip information file size,
Playlist file size,
The sum of these sizes is added to the current usage amount to calculate the total capacity that is assumed when new content is added and registered, and the estimated total capacity exceeds the specified amount, that is, the total capacity of the disc is exceeded. It may be possible to perform a process of confirming whether or not to perform playlist registration based on the confirmation result.

  As described above, various types of data can be recorded in the management information as data for calculating the recording medium remaining amount (recordable capacity), and calculation for determining whether or not a playlist can be registered according to the recorded data. Is done. That is, playlist registration of new content is allowed only when the recording medium has a capacity smaller than the remaining amount. The management information is not limited to the recording medium remaining amount calculation data, but may be set to record the value of the recording medium remaining amount (recordable capacity) itself.

  Finally, with reference to FIG. 13, a hardware configuration example of a video camera as an example of the information processing apparatus of the present invention will be described. The video camera 500 inputs a shooting signal acquired by the imaging unit 501 such as a lens or a charge coupled device (CCD) to the analog signal processing unit 502, performs processing such as noise removal in the analog signal processing unit 502, and performs A / D In the conversion part 503, it converts into a digital signal. The digitally converted data is subjected to digital signal processing such as data compression in the digital signal processing unit 504, and then recorded in a recording device 515 including, for example, a hard disk or a flash memory. Further, it is displayed on the monitor 517 and the viewfinder (EVF) 516.

  The operation unit 511 includes, for example, a shutter provided in the video camera main body, a switch for specifying playback of data recorded in the recording device 515, and switches for starting processing such as fast-forward playback and rewind playback. Note that the operation unit 511 may be configured as a user interface that also serves as the monitor 517.

  Control unit 510 has a CPU, and executes control of various processes executed by the imaging apparatus in accordance with a program stored in advance in memory (ROM) 520 or the like. A memory (EEPROM) 512 is a non-volatile memory, and stores image data, various auxiliary information, programs, and the like. A memory (ROM) 520 stores programs, calculation parameters, and the like used by the control unit (CPU) 510. The memory (RAM) 521 stores programs used in the control unit (CPU) 510, parameters that change as appropriate during execution thereof, and the like.

  The media I / F 522 is an interface for an external recording medium such as a DVD, and the communication unit 523 executes communication processing with a device that performs recording processing on the external recording medium such as a PC such as a PC. Archive processing (copy processing) of content registered in the virtual playlist is performed via the media I / F 522 and the communication unit 523.

  Note that the hardware configuration example of the information processing apparatus illustrated in FIG. 13 is an example of the apparatus, and not limited to the configuration illustrated in FIG. 13, various apparatuses that can execute the processes described in the above-described embodiments are applicable. .

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet, and installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of one embodiment of the present invention, in the creation of a playlist that defines the playback order of content, playlist creation assuming an external recording medium as the recording destination of the registered content of the playlist When the new content is registered in the playlist, a capacity determination is performed as to whether or not all of the playlist registration content can be recorded on the external recording medium, and the new content is determined on the condition that it can be recorded. Register to playlist. With this configuration, it is possible to reliably record on one recording medium such as one DVD when archiving (copying) the playlist registration content.

It is a figure explaining the structural example and process of an information processing apparatus which concern on one Example of this invention. It is a figure which shows the flowchart explaining the play list registration process sequence of the content using the information processing apparatus which concerns on one Example of this invention. It is a figure which shows the example of the display data displayed in the information processing apparatus which concerns on one Example of this invention. It is a figure explaining the data according to the AVCHD format which is a data structure stored in a medium in the information processing apparatus which concerns on one Example of this invention. It is a figure explaining the specific example of the content registration process with respect to the play list in the information processing apparatus which concerns on one Example of this invention. It is a figure explaining the specific example which records the data for calculation of recording medium remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure explaining the specific example which records the data for calculation of recording medium remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure explaining the specific example which records the data for calculation of recording medium remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure explaining the specific example which records the data for calculation of recording medium remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure explaining the specific example which records the data for calculation of recording medium remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure which shows the flowchart explaining the process sequence using the data for calculation of the recording media remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. It is a figure explaining the process using the data for calculation of the recording media remaining amount (recordable capacity | capacitance) information in the management information according to an AVCHD format. FIG. 25 is a diagram for describing an example hardware configuration of an information processing device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Playlist preparation part 101 User input part 102 Content point acquisition part 103 Recording destination medium required capacity calculation part 104 Recording destination medium remaining capacity calculation part 105 Media I / F
106 Recording availability determination unit 107 Data recording update processing unit 108 Output unit 110 Internal recording medium 121 External recording medium 500 Video camera 501 Imaging unit 502 Analog signal processing unit 503 A / D conversion unit 504 Digital signal processing unit 510 Control unit 511 Operation unit 512 Memory 515 Recording Device 516 Viewfinder 517 Monitor 520 Memory (ROM)
521 Memory (RAM)
522 Media I / F
523 Communication Department

Claims (19)

An information processing device,
An internal recording medium for storing content;
A playlist creation unit that creates a playlist that is a list that defines a playback order of content stored in the internal recording medium;
The playlist creation unit
It is a configuration that performs playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
When registering new content to the playlist, a capacity determination is performed as to whether or not all of the playlist registration content can be recorded on the external recording medium, and the new content is added to the playlist on condition that the recording is possible. Information processing apparatus characterized by registering in The playlist creation unit
2. The configuration according to claim 1, wherein the remaining capacity of the external recording medium is acquired or calculated, and a capacity determination process for comparing the remaining capacity of the external recording medium and the capacity of the new content is executed. Information processing device. The playlist creation unit
Whether or not the total capacity of the external recording medium obtained or calculated based on the registered content of the playlist and the capacity of the new content exceeds the total capacity of the external recording medium The information processing apparatus according to claim 1, wherein the information determination apparatus is configured to execute a capacity determination process of no. The playlist creation unit
As the capacity of the new content, the capacity determination processing is executed by calculating a capacity that combines the capacity of content entity data of the new content and the capacity of management information corresponding to the content entity data. The information processing apparatus according to claim 2 or 3, characterized in that The playlist creation unit
A configuration for executing a process of obtaining or calculating the remaining capacity or used capacity information of the external recording medium to be applied to the capacity determination process from the storage data of the management information recorded on the internal recording medium or applying the stored data The information processing apparatus according to claim 1, wherein: The playlist creation unit
6. The configuration according to claim 5, wherein when the playlist registration content is updated by registration, deletion or editing of the content to the playlist, the management information is updated in accordance with the playlist update. Information processing device.   The information processing apparatus according to claim 5, wherein the management information is management information defined in an AVCHD format.   The information processing apparatus according to claim 7, wherein the management information is an index file or a playlist file defined in the AVCHD format. The playlist creation unit
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute a virtual playlist creation process defined in the AVCHD format. An information processing method executed in an information processing apparatus having an internal recording medium storing content,
The playlist creation unit has a playlist creation step of creating a playlist that is a list that defines a playback order of content stored in the internal recording medium;
The playlist creation step includes:
It is a step of performing playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
A capacity determination step of performing capacity determination as to whether or not all of the playlist registration contents can be recorded on the external recording medium when registering new contents to the playlist;
An information processing method comprising: a step of registering the new content in a playlist on the condition that recording is possible in the capacity determining step. The capacity determination step includes
11. The step of acquiring or calculating the remaining capacity of the external recording medium and executing a capacity determination process for comparing the remaining capacity of the external recording medium and the capacity of the new content. Information processing method. The capacity determination step includes
Whether or not the total capacity of the external recording medium obtained or calculated based on the registered content of the playlist and the capacity of the new content exceeds the total capacity of the external recording medium The information processing method according to claim 10, wherein the information processing method is a step of executing a capacity determination process. The capacity determination step includes
The capacity determination processing is performed by calculating a capacity obtained by combining the capacity of content entity data of the new content and the capacity of management information corresponding to the content entity data as the capacity of the new content. The information processing method according to claim 11 or 12. The capacity determination step includes
A step of executing a process of calculating the remaining capacity or used capacity information of the external recording medium to be applied to the capacity determination process from the storage data of the management information recorded on the internal recording medium or applying the stored data The information processing method according to claim 10, further comprising: In the information processing method,
If the playlist registration content is updated by registering, deleting, or editing content in the playlist,
The information processing method according to claim 14, wherein the playlist creation unit updates the management information according to playlist update.   16. The information processing method according to claim 14, wherein the management information is management information defined in an AVCHD format.   The information processing method according to claim 16, wherein the management information is an index file or a playlist file defined in the AVCHD format. The playlist creation step includes:
The information processing apparatus according to claim 10, wherein the information processing apparatus is a step of executing a virtual playlist creation process defined in the AVCHD format. A computer program for executing information processing in an information processing apparatus having an internal recording medium storing content;
A playlist creation step for causing the playlist creation unit to create a playlist that is a list that defines a playback order of the content stored in the internal recording medium;
The playlist creation step includes:
It is a step of performing playlist creation processing assuming an external recording medium as a recording destination of the registered content of the playlist,
A capacity determination step of performing capacity determination as to whether or not all of the playlist registration contents can be recorded on the external recording medium when registering new contents to the playlist;
A computer program characterized in that the capacity determination step includes a registration step of registering the new content in a playlist on condition that the recording is possible.

Images