JPWO2011062133A1 - CONTENT REPRODUCTION METHOD, CONTENT REPRODUCTION DEVICE, AND PROGRAM - Google Patents

Abstract

The present invention constitutes a reproduction list composed of information related to the content selected by the user from the search result, checks the reproducibility of the content of the reproduction list at a predetermined timing, and applies the content to the content that cannot be reproduced at the time of reproduction. It is added to an error list that is a list of non-reproducible content, the non-reproducible content is deleted from the replay list, and the non-reproducible content of the error list is checked at a predetermined timing to be reproducible. For example, the content reproduction method may return the non-reproducible content to a reproduction list, perform reproduction, and delete the non-reproducible content from the error list.

Description

  The present invention relates to a content reproduction method, a content reproduction apparatus, and a program.

  In a service that distributes images via a network such as the Internet, as in Non-Patent Document 1, a user accesses a service provider's access point, etc., and enters a keyword to search for content. In general, the content to be viewed is selected from the list and actually viewed.

  At this time, a viewing mode in which a plurality of contents are selected, a list of contents to be reproduced (reproduction list) is held on the terminal, and the contents listed in the reproduction list are viewed in order. When a play list is used, there may be a case where the content on the play list existing on the network at the time of searching for the content cannot be played due to deletion of the content at the stage of playing. As described above, when an attempt is made to start playback of content on a playlist, if the content does not already exist on the network, playback is interrupted.

  Therefore, the viewer takes an operation of deleting the content from the reproduction list and continuing the reproduction.

“Sagur TV”, [online], Internet <URL: http://sagool.tv/>

  However, in the related technology described above, when content having the same content as the content deleted from the playlist is uploaded again on the network, the content has already been deleted from the playlist, so the viewer can delete the content. There was a problem of being unable to watch.

  Therefore, the present invention has been invented in view of the above-mentioned problems, and the purpose of the present invention is to perform playback in the order of a playlist generated on a terminal in an image playback service, even if there is content that cannot be played back. It is to provide a content reproduction method, a content reproduction apparatus, and a program for reproducing the content when the reproduction is continued without interruption and the content can be reproduced.

  The present invention is a content playback method for content distributed over a network, which forms a play list including information related to content selected by a user from a search result, and checks the playability of the content of the play list at a predetermined timing. For content that cannot be played back during playback, the content is added to an error list that is a list of unplayable content, the unplayable content is deleted from the play list, and the error list cannot be played back at a predetermined timing. This is a content reproduction method that checks whether or not the reproducible content can be reproduced and, if reproducible, returns the non-reproducible content to the reproduction list, performs reproduction, and deletes the non-reproducible content from the error list.

  The present invention is a content reproduction apparatus for content distributed over a network, and a reproduction list processing unit that forms a reproduction list including information related to content selected by a user from a search result, and content of the reproduction list at a predetermined timing. The content playback availability check processing unit that checks the playback possibility, and for content that cannot be played back during playback, add the content to an error list that is a list of unplayable content, and delete the unplayable content from the playback list An error list processing unit, an error content reproducibility check processing unit that checks whether or not the non-reproducible content in the error list can be reproduced at a predetermined timing, and, if reproducible, returns the non-reproducible content to the replay list Play back and return to the previous error list. Which is a content playing device having a content restoration processing unit for deleting the irreproducible contents.

  The present invention is a program for reproducing content distributed over a network, which includes a playlist processing that forms a playlist including information related to content selected by a user from a search result, and playback of the content of the playlist at a predetermined timing. Content reproducibility check processing for checking the possibility, and for content that cannot be played back during playback, the content is added to an error list that is a list of non-playable content, and the non-playable content is deleted from the play list A list process, an error content reproducibility check process for checking whether or not the non-reproducible content in the error list can be reproduced at a predetermined timing, and, if reproducible, returning the non-reproducible content to the replay list and Do not play from error list Is a program to be executed by the content recovery processing and the information processing apparatus to delete the content.

  According to the present invention, the content on the playlist can be played back without being interrupted, and the content can be viewed when the content that could not be played back becomes playable.

FIG. 1 is a block diagram of a content reproduction apparatus according to the first embodiment. FIG. 2 is a diagram illustrating an example of a reproduction list according to the first embodiment. FIG. 3 is a diagram illustrating an example of a playlist according to the first embodiment. FIG. 4 is a diagram illustrating an example of an error list according to the first embodiment. FIG. 5 is an operation flowchart of the content reproduction apparatus according to the first embodiment. FIG. 6 is an operation flowchart of the content reproduction apparatus according to the first embodiment. FIG. 7 is an operation flowchart of the content reproduction apparatus according to the second embodiment. FIG. 8 is a system block diagram of the third embodiment.

Embodiments of the present invention will be described in detail with reference to the drawings.
<First Embodiment>
FIG. 1 is a block diagram of a content reproduction apparatus according to the first embodiment.

  Referring to FIG. 1, the content reproduction apparatus according to the first embodiment includes a reproduction list generation processing unit 601, a content reproduction availability investigation processing unit 602, a content reproduction processing unit 603, an error list generation processing unit 604, and an error. The content reproduction availability check processing unit 605 and the content return processing unit 606 are configured. The content refers to moving images, still images, music, and the like.

  When a user searches for content, the playlist generation processing unit 601 displays a list of content candidates as a search result. The play list generation processing unit 601 generates a play list based on content information of one or more contents selected by the user from the search result. The content information included in the reproduction list includes, for example, a content title, shooting date / time, content owner, content producer, shooting location, keyword, and the like. Also, information other than those listed here may be included. FIG. 2 shows an example of the reproduction list. In FIG. 2, a reproduction list is configured by seven types of contents, and the list is configured in accordance with the order of reproduction.

  In response to the user's playback start operation, the content playback availability investigation processing unit 602 investigates whether or not the content in the playback list can be played back. If a certain content in the reproduction list does not already exist on the network, the content information of the content is transmitted to the error list generation processing unit 604. Further, the content information of the content is deleted from the reproduction list. When a certain content in the reproduction list can be reproduced, the content reproduction processing unit 603 is notified of the content information of the content. Note that whether the content on the play list actually exists on the network and can be played back may be checked at the start of playback of the content, or may be performed at another timing. For example, during the playback of a certain content, it may be possible to check the reproducibility of the content scheduled to be played next.

  The error list generation processing unit 604 receives the content information of the unreproducible content from the content reproducibility check processing unit 602, and adds the content information of the content to the error list.

  On the other hand, the content reproduction processing unit 603 that has received the content information of the reproducible content from the content reproduction availability investigation processing unit 602 performs the content reproduction processing.

  For example, the reproduction list generated by the reproduction list generation processing unit 601 is shown in FIG. 2, and it is determined that the content 3 and the content 6 cannot be reproduced as a result of the reproduction availability investigation by the content reproduction availability investigation processing unit 602. In this case, the reproduction list is as shown in FIG. 3, and the error list is as shown in FIG. In the reproduction list of FIG. 3, content 3 and content 6 are deleted from the reproduction list. In the error list of FIG. 4, content 3 and content 6 are added to the error list. Thus, the content information that could not be reproduced is added to the error list, and the content reproduction processing unit 603 continues to reproduce the next content on the reproduction list.

  The error list is configured as a different list from the playback list. However, the playback list and the error list are configured as one list, indicating a difference in display color and content that could not be played back. A similar effect may be obtained by displaying an icon or the like.

  The error content reproducibility check processing unit 605 checks the reproducibility of content on the error list at a predetermined timing. The content on the error list is content that has not existed on the network at the time of reproduction, but can be reproduced if it is uploaded again on the network. Therefore, it is checked at a predetermined timing whether content having the same content as the content on the error list exists on the network. When content having the same content as the content on the error list exists on the network, the content information of the content is deleted from the error list, and the content information of the content is notified to the content restoration processing unit 606. The error content reproducibility investigation processing unit 605 performs a check at a predetermined timing at the time determined every day, the next week, the next use, the next time, or the like.

  The content restoration processing unit 606 receives the content information from the error content reproducibility investigation processing unit 605 and adds the received content information to the reproduction list. At this time, the content may be added to the end of the play list, or may be added to the position when it was previously in the play list.

  Note that the return to the play list of the error content reproducibility investigation processing unit 605 and the content return processing unit 606 may be performed under conditions other than the case where the same content exists. For example, it is also possible to present a list of similar contents, select content permitted by the user as alternative content, and add the alternative content to the reproduction list.

  FIG. 5 is an operation flowchart of the content reproduction apparatus according to the first embodiment.

  First, content search by a user (viewer) is performed, and based on one or more content selected from the search result, the playlist generation processing unit 601 constructs a playlist (S301).

  Next, the user performs a reproduction start operation, and reproduction preparation processing for the content in the reproduction list is started (S302).

  The content reproducibility check processing unit 602 acquires information about the content to be reproduced next from the reproduction list. If all the contents on the reproduction list have already been reproduced and there is no content to be reproduced next, the reproduction process is terminated (S304).

  On the other hand, if the content to be reproduced next exists on the reproduction list (S304), it is determined whether the content exists on the network and can be reproduced (S305). If playback is possible, the content playback processing unit 603 plays back the content (S306). If it is not reproducible, the content reproducibility investigation processing unit 602 deletes the content information from the replay list (S307), and the error list generation processing unit 604 adds the content information to the error list (S308). Then, the process proceeds to S303 in order to reproduce the next content on the reproduction list.

  Next, the processing operation for the content added to the error list will be described.

  FIG. 6 is an operation flowchart of the processing operation for the content added to the error list in the content reproduction apparatus according to the first embodiment.

  First, the error content reproducibility investigation processing unit 605 acquires content information for checking reproducibility from the error list (S401). If there is no content information on the error list and the content information cannot be acquired, the process ends (S402).

  On the other hand, if the content information can be acquired from the error list, the error content reproducibility investigation processing unit 605 checks whether the content exists on the network and can be reproduced (S403). If playback is possible, the error content playback availability investigation processing unit 605 deletes the content from the error list. Further, the content restoration processing unit 606 adds the content information of the content deleted from the error list to the reproduction list (S404). Then, in order to examine the next content on the error list, the process proceeds to S402.

  Next, the operation of the first exemplary embodiment of the present invention using a specific example will be described.

  It is assumed that the user searches for contents to be viewed on the terminal and selects ten contents from the search results (contents 1 to 10 respectively). Information on these contents (content name, content owner, content producer, shooting date / time, keyword) is stored, and a reproduction list is generated.

  After the reproduction list is generated, the user instructs the terminal to start reproduction, and reproduction of ten contents is started. It is assumed that the content is reproduced in the order of content 1, content 2, content 3,. At this time, it is assumed that the content 3 exists on the network when the search is performed, but has been deleted from the network at the timing of starting reproduction. At this time, the content 3 is deleted from the reproduction list, added to the error list, and the reproduction of the next content 4 is continued.

  If the content 3 added to the error list is re-searched at a predetermined timing (next day, next week, next use, time determined every day, etc.) and exists again on the network, the content 3 3 is returned to the reproduction list and deleted from the error list.

  As described above, according to the first embodiment, it is possible to reproduce the content on the reproduction list without interruption of reproduction. The reason for this is that, when trying to start playback of content on the playlist, for content that cannot be played back, the content information is stored in the error list and can be played back by deleting it from the playlist. Because.

Further, according to the first embodiment, when a content that could not be reproduced can be reproduced, the content can be viewed. The reason is that information on the content that could not be played once is stored in the error list, and it is checked whether the content on the error list can be played every predetermined time. This is for returning to the play list.
<Second Embodiment>
The second embodiment of the present invention will be described in detail.

  In the second embodiment, when a playlist is generated by a user, content information such as a title and shooting date and time, and a feature amount of the content are extracted and stored on the end user terminal. The feature amount includes, for example, a part extracted from a scene of the content, a part extracted from a frame, a part extracted from a bit stream of encoded content, and the like. Data other than those described above may be used as the feature amount. In this embodiment, when searching for content in the error list, the feature amount is used to search for and present other alternative content similar to the content described in the error list. Features.

  When the playlist generation processing unit 601 generates a playlist, for example, a title, a shooting date, a content owner, a content creator, a shooting location, a keyword, and a part of a content scene (for example, a thumbnail image) are displayed. The extracted information, the extracted part of the frame, and the extracted part of the encoded content bitstream are stored in the playlist as the content information of each content.

  If the content on the error list cannot be reproduced, the error content reproducibility investigation processing unit 605 searches for other content similar to the content based on the content information. When similar content can be found, information on the content is presented to the user.

  When the user determines to view similar content as alternative content, the content restoration processing unit 606 deletes the content from the error list and adds the alternative content to the reproduction list.

  Next, the operation of the content reproduction apparatus in the second embodiment will be described.

  FIG. 7 is an operation flowchart of the content reproduction apparatus according to the second embodiment. In addition, about the operation | movement similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  First, when the content information can be acquired from the error list, the error content reproducibility investigation processing unit 605 checks whether the content exists on the network and can be reproduced (S403). If the content does not exist on the network or is not reproducible, another content similar to the content is searched (S501). For example, based on the title, shooting date / time, content creator, shooting location, keyword, the feature amount, and the like, content that appears to be similar on the network is searched.

  If there is no other content similar to the content, the search is terminated, and the process proceeds to S402 to check the next content on the error list (S502). On the other hand, when there is other content similar to the content, information on the content is presented to the user (S503).

  Next, the user determines whether or not similar content is to be viewed as alternative content (S504). If it is determined that the content is to be viewed as alternative content, the content is deleted from the error list, and the alternative content is displayed in the playlist. (S505). If it is determined that the content is to be viewed as alternative content, the process proceeds to S402 to check the next content on the error list.

In the second embodiment, since other content similar to content that cannot be reproduced is searched, it is possible to increase viewing opportunities for content that the user has shown interest in.
<Third Embodiment>
Next, the best mode for carrying out the third invention of the present invention will be described in detail with reference to FIG.

  The third embodiment is an example in which the content reproduction apparatus shown in the first embodiment described above is realized by a computer system.

  Referring to FIG. 8, the system is equipped with a program control processor 501. In addition to the reproduction list memory 502 and the error list memory 503, the program control processor 501 is connected to a program memory 504 that stores necessary programs. In addition to the main program, the program module stored in the program memory 504 includes a play list generation process 505 for generating a play list, a content playability check process 506 for checking the playability of content included in the play list, and a play list on the play list. Content playback processing 507 for sequentially playing back content, addition of content that cannot be played back to the error list, error list generation processing 508, error content playback availability check processing 509 for checking whether content on the error list can be played back, playback The content recovery processing 510 returns the possible content to the reproduction list.

  The main program is a main program that executes image quality reproduction processing. These program modules functionally realize the above-described flowcharts of FIGS.

  Further, if a similar content search processing module for searching for content similar to content on the error list is provided, the second embodiment described above can be realized on a computer system.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Supplementary Note 1) A content playback method for content distributed over a network,
Create a playlist with information about the content selected by the user from the search results,
Check the playability of the content of the playlist at a predetermined timing,
For content that cannot be played back during playback, add the content to an error list that is a list of non-playable content, delete the non-playable content from the playlist,
Check whether or not the error list cannot be played back at a predetermined timing,
If reproducible, a content reproduction method of returning the non-reproducible content to a reproduction list, performing reproduction, and deleting the non-reproducible content from an error list.

  (Supplementary note 2) The content reproduction method according to supplementary note 1, wherein the reproducibility of the non-reproducible content is checked at the start of reproduction of the content in the reproduction list.

(Appendix 3) Search for content similar to the unplayable content,
If there is content similar to the unplayable content, present the similar content to the user;
The content reproduction method according to appendix 1, wherein when the user reproduces the similar content as substitute content, the non-reproducible content is deleted from the error list, and the similar content is added to the reproduction list.

(Supplementary note 4) The content reproduction method according to any one of supplementary notes 1 to 3, wherein the reproduction list includes at least one of a content title, a shooting date and time, a content owner, a content producer, a shooting location, and a keyword.

(Additional remark 5) At the time of the said play list production | generation, the feature-value of content is extracted, Based on the feature-value of the said content, the content similar to the said non-reproducible content is searched. The content playback method described.

  (Supplementary note 6) The content reproduction method according to supplementary note 5, wherein the content feature amount includes one or more elements of a part of a scene of a content, a part of a frame, and a part of a bitstream of the content.

(Supplementary note 7) A content playback apparatus for content distributed over a network,
A playlist processing unit that constitutes a playlist including information on the content selected by the user from the search results;
A content reproducibility investigation processing unit for examining the reproducibility of the content of the playlist at a predetermined timing;
An error list processing unit for adding content that cannot be played back during playback to an error list that is a list of unplayable content and deleting the unplayable content from the play list;
An error content reproducibility investigation processing unit that examines the reproducibility of non-reproducible content in the error list at a predetermined timing;
A content playback apparatus comprising: a content recovery processing unit that, if playback is possible, returns the non-playable content to a playback list, performs playback, and deletes the non-playable content from the error list.

  (Supplementary note 8) The content reproduction apparatus according to supplementary note 7, wherein the content reproduction possibility check processing unit checks reproduction possibility of the non-reproducible content at the start of reproduction of the content in the reproduction list.

(Supplementary Note 9) The error content reproducibility investigation processing unit searches for content similar to the non-reproducible content, and presents the similar content to the user when content similar to the non-reproducible content exists. ,
Item 8. The supplementary note 7 wherein when the user reproduces the similar content as substitute content, the content restoration processing unit deletes the non-reproducible content from the error list and adds the similar content to the reproduction list. Content playback device.

(Supplementary note 10) The content reproduction device according to any one of supplementary note 7 to supplementary note 9, wherein the reproduction list includes at least one or more of a content title, a shooting date, a content owner, a content creator, a shooting location, and a keyword.

(Additional remark 11) The said play list process part extracts the feature-value of a content at the time of the said play list production | generation, registers to the said play list,
The content reproduction device according to any one of appendix 7 to appendix 10, wherein the error content reproducibility check processing unit searches for content similar to the non-reproducible content based on the feature amount of the content.

  (Supplementary note 12) The content reproduction apparatus according to supplementary note 11, wherein the feature amount of the content includes one or more elements of a part of a content scene, a part of a frame, and a part of a bitstream of the content.

(Supplementary note 13) A program for reproducing content distributed over a network,
Playlist processing that constitutes a playlist that includes information about the content selected by the user from the search results;
A content reproducibility investigation process for examining the reproducibility of content in the playlist at a predetermined timing;
Error list processing for adding content that cannot be played back during playback to an error list that is a list of unplayable content and deleting the unplayable content from the play list;
An error content reproducibility investigation process for examining the reproducibility of non-reproducible content in the error list at a predetermined timing;
If reproducible, a program for causing the information processing apparatus to execute a content reversion process for restoring the non-reproducible content to a reproduction list, performing reproduction, and deleting the non-reproducible content from an error list.

  Although the present invention has been described with reference to the preferred embodiments and examples, the present invention is not necessarily limited to the above-described embodiments and examples, and various modifications can be made within the scope of the technical idea. I can do it.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2009-261476 for which it applied on November 17, 2009, and takes in those the indications of all here.

601 Playback list generation processing unit 602 Content reproduction availability investigation processing unit 603 Content reproduction processing unit 604 Error list generation processing unit 605 Error content reproduction availability investigation processing unit 606 Content restoration processing unit

Claims (13)

A content playback method for content distributed over a network,
Create a playlist with information about the content selected by the user from the search results,
Check the playability of the content of the playlist at a predetermined timing,
For content that cannot be played back during playback, add the content to an error list that is a list of non-playable content, delete the non-playable content from the playlist,
Check whether or not the error list cannot be played back at a predetermined timing,
If reproducible, a content reproduction method of returning the non-reproducible content to a reproduction list, performing reproduction, and deleting the non-reproducible content from an error list.   The content reproduction method according to claim 1, wherein the reproducibility of the non-reproducible content is checked at the start of reproduction of the content in the reproduction list. Search for content similar to the unplayable content,
If there is content similar to the unplayable content, present the similar content to the user;
The content reproduction method according to claim 1, wherein when the user reproduces the similar content as substitute content, the non-reproducible content is deleted from the error list, and the similar content is added to the reproduction list. The content reproduction method according to any one of claims 1 to 3, wherein the reproduction list includes at least one of a content title, a shooting date / time, a content owner, a content producer, a shooting location, and a keyword. The content amount of content is extracted at the time of the reproduction | regeneration list production | generation, The content similar to the said non-reproducible content is searched based on the feature amount of the said content. Content playback method.   6. The content reproduction method according to claim 5, wherein the content feature amount includes one or more elements of a part of a content scene, a part of a frame, and a part of a content bitstream. A content playback device for content distributed over a network,
A playlist processing unit that constitutes a playlist including information on the content selected by the user from the search results;
A content reproducibility investigation processing unit for examining the reproducibility of the content of the playlist at a predetermined timing;
An error list processing unit for adding content that cannot be played back during playback to an error list that is a list of unplayable content and deleting the unplayable content from the play list;
An error content reproducibility investigation processing unit that examines the reproducibility of non-reproducible content in the error list at a predetermined timing;
A content playback apparatus comprising: a content recovery processing unit that, if playback is possible, returns the non-playable content to a playback list, performs playback, and deletes the non-playable content from the error list.   8. The content playback apparatus according to claim 7, wherein the content playback availability check processing unit checks the playback possibility of the non-playable content at the start of playback of the content in the playlist. The error content reproducibility investigation processing unit searches for content similar to the non-reproducible content, and when there is content similar to the non-reproducible content, presents the similar content to the user,
8. The content restoration processing unit, when the user reproduces the similar content as substitute content, deletes the non-reproducible content from the error list and adds the similar content to the reproduction list. The content reproduction device described. The content reproduction apparatus according to claim 7, wherein the reproduction list includes at least one of a content title, a shooting date / time, a content owner, a content creator, a shooting location, and a keyword. The playlist processing unit extracts a feature amount of content at the time of generating the playlist and registers it in the playlist,
The content reproduction apparatus according to any one of claims 7 to 10, wherein the error content reproducibility investigation processing unit searches for content similar to the non-reproducible content based on a feature amount of the content.   12. The content reproduction apparatus according to claim 11, wherein the feature amount of the content includes one or more elements of a part of a content scene, a part of a frame, and a part of a bit stream of the content. A program for playing content distributed over a network,
Playlist processing that constitutes a playlist that includes information about the content selected by the user from the search results;
A content reproducibility investigation process for examining the reproducibility of content in the playlist at a predetermined timing;
Error list processing for adding content that cannot be played back during playback to an error list that is a list of unplayable content and deleting the unplayable content from the play list;
An error content reproducibility investigation process for examining the reproducibility of non-reproducible content in the error list at a predetermined timing;
If reproducible, a program for causing the information processing apparatus to execute a content reversion process for restoring the non-reproducible content to a reproduction list, performing reproduction, and deleting the non-reproducible content from an error list.

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