JP2004032669A - Content distribution system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a contents distribution system which distributes the contents, in such a way that a user does not feel uncomfortable when a scene changes from a program to a commercial (CM). <P>SOLUTION: The system receives a contents request information from a user terminal and searches for the stream data of programs and CM according to a key word included in the contents request information for extracting specific stream data. When the extracted stream data of a program is connected with the extracted stream data of a CM, a transition effect is added to the connection. Then, the connected stream data is distributed to the terminal of the user. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a technology for producing content including stream data representing video or audio, and in particular, produces content by dynamically connecting a plurality of stream data so as to enable continuous reproduction based on a keyword received from a user. Related to a content production device.
[0002]
[Prior art]
In recent years, a service has been provided for free distribution of multimedia contents (hereinafter simply referred to as contents), which are stream data of moving images and music, including a CM (commercial message) of a sponsor to users through the Internet. I have. A content distribution system that organizes and distributes content in response to a user's request is now being studied in order to realize free provision of content that meets the user's request.
[0003]
In conventional television broadcasting and radio broadcasting, broadcasters have determined the arrangement of CMs in consideration of the structure and story development of programs, but in the above-mentioned content distribution system, the arrangement of programs and CMs is automatically determined. A method of decision is adopted.
As a method of automatically determining the arrangement of a program and a CM, for example, in the following Patent Document, information indicating a position where insertion of a CM is recommended is added to program data in advance, and the program data indicated by the information is added. A CM insertion method for inserting and combining CM data at a position on the reproduction time axis is shown. This makes it possible to automatically insert a CM at an appropriate place in a program.
[0004]
[Patent Document 1]
Patent No. 3315928
[0005]
[Problems to be solved by the invention]
However, even if a CM is inserted at an appropriate place in a program by the above-described CM insertion method, since the content is completely different between the program and the CM, sudden switching from the program to the CM may make a user viewing the content uncomfortable. Can be considered.
An object of the present invention is to provide a content distribution system that switches between a program and a CM included in content so as not to make a user who views the content uncomfortable.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a content distribution system according to the present invention includes a storage unit that stores a plurality of stream data, a reception unit that receives content request information from a user terminal, and a content request received by the reception unit. Extracting means for extracting a plurality of stream data from the storage means in accordance with the information, and adding a transition effect to each connected portion when combining the plurality of extracted stream data into a series of stream data Determination means for determining whether or not it is based on a predetermined condition, and combining the extracted stream data so as to form a series of stream data, and providing a transition effect to a combined portion that has been positively determined by the determination means. Combining means for adding, and the stream data combined by the combining means Characterized in that it comprises a distribution means for distributing addressed THE terminal.
[0007]
Here, the transition effect refers to a special effect for realizing smooth switching of video or sound, and a specific example of the transition effect is a scene effect when switching from scene A to scene B in video. When the brightness of the image A is gradually lowered, and when the scene A becomes completely black, the brightness of the image B of the black color, the brightness of which is lowered, is gradually increased, and the scene brightness is increased to the normal brightness to switch the scene. -Out-effect. In addition, there are transition effects such as wipe-in / out and dissolve.
[0008]
With this configuration, under the condition that the program data and the CM data are combined, a transition effect is added to the combined portion, so that the switching from the program to the CM becomes smooth and the user viewing the content becomes uncomfortable. Can be eliminated.
In addition, the content distribution method according to the present invention includes a receiving step of receiving content request information from a user terminal, and a plurality of storage units storing a plurality of stream data in accordance with the content request information received in the receiving step. An extraction step of extracting stream data, and when combining a plurality of stream data extracted in the extraction step into a series of stream data, a predetermined condition is determined as to whether or not to add a transition effect to each combined portion. A combining step of combining the stream data extracted in the extracting step, and adding a transition effect to the combined portion for which a positive determination has been made in the determining step; and a combining step of combining in the combining step. Stream data Characterized in that it comprises a distribution step of distributing to the addressed user terminal.
[0009]
Further, the present invention may be a computer program including the steps of the content distribution method, or may be a recording medium on which the computer program is recorded.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a content distribution system according to the present invention will be described with reference to the drawings.
<Structure>
FIG. 1 is a diagram showing a functional configuration of the content distribution system 100.
[0011]
The content distribution system 100 and the user terminal devices 10 and 11 perform two-way communication via the network 20. Although not shown in FIG. 1, it is assumed that there are a plurality of user terminal devices from several thousand to tens of thousands.
The user terminal device 10 and the user terminal device 11 have a communication function, a content reproduction function, and a user interface function, and are specifically a personal computer, a mobile terminal, or the like.
[0012]
The content distribution system 100 receives the content request information transmitted from each user terminal device, automatically organizes the content according to the content request information, and sends the content to the user terminal device that transmitted the content request information. To deliver.
The contents referred to here are stream data such as moving images and music. The data contents include not only programs requested by the user, but also sponsor CMs. The number of sponsor CMs included in the content changes according to the price paid by the user for the content. The content distributor distributes a correspondence table between the number of CMs included in the content and the content price in advance to the user, and the user determines the price to be paid for the content with reference to the correspondence table.
[0013]
The content distribution system 100 includes a distribution server 101, a content production device 103, and an operator terminal device 111.
The distribution server 101 is configured with a plurality of computers so as to sufficiently cope with a large amount of simultaneous access. The distribution server 101 transmits a function for receiving various information (for example, content request information) transmitted from each user terminal device and information necessary for organizing content to the content production device 103. As a result, the content production device 103 It has a function of receiving and storing the output content, and a function of streaming the stored content to the user terminal device based on various stream control information conforming to the RTSP (Real-Time Streaming Protocol).
[0014]
The user information storage unit 102 stores a user's personal information (ID, password, name, age, gender, address, credit card number used for payment, etc.) in a database, and these information are It is used for authentication when there is access from the user terminal device and for settlement of the content price.
The content production device 103 is a computer including a CPU, an input / output unit, a memory, a hard disk, and the like. Functionally, the input / output unit 104, the program data storage unit 105, the CM data storage unit 106, the CM addition determination unit 107 , A search unit 108, a combining unit 109, and the like.
[0015]
The input / output unit 104 has a function of inputting / outputting various data.
The program data storage unit 105 is a large-capacity storage medium such as a hard disk, and stores a plurality of program data together with index information in a database. The input of the program data and the index information to the program data storage unit 105 is performed by the operator operating the operator terminal device 111.
[0016]
Like the program data storage unit 105, the CM data storage unit 106 is a large-capacity storage medium such as a hard disk, and stores a plurality of CM data in a database together with index information. The input of the CM data and the index information to the CM data storage unit 106 is the same as the input of the program data.
The CM addition determining unit 107 has a function of determining whether or not to add a CM to content to be distributed based on the price information included in the content request information, and setting a number of CMs to be added when adding a CM. Have.
[0017]
The search unit 108 retrieves the corresponding program data from the program data storage unit 105 and the corresponding program data from the CM data storage unit 106 based on the keyword information included in the content request information and the number of CMs set by the CM addition determination unit 107. It has a function to search for CM data by keyword. The search unit 108 extracts the detected program data and CM data from each storage unit and transmits them to the combining unit 109.
[0018]
The combining unit 109 has a function of combining the stream data extracted by the search unit 108 and a transition effect processing unit 110 that is a functional unit that adds a transition effect to a combined portion of the stream data. The stream ID is described in the program data and the CMID is described in the CM data in the respective index information, and the combining unit 109 combines the stream data based on the index information of each stream data. For example, the CMID also serves as information indicating an attribute that the stream data is a CM, and the combining unit 109 refers to the index information and if only one of the two stream data to be combined is the CM data, A decision is made to add a transition effect to the joint.
[0019]
On the other hand, no transition effect is added to the connection between program data and CM data.
The type of transition effect to be added is determined based on identification information for identifying the type of transition effect described in the item of video switching or audio switching in the index information of the program data.
[0020]
The operator terminal device 111 is a terminal device used to write program data, CM data, and index information in each storage unit of the content production device 103, and is connected to the content production device 103 via a LAN. The operator terminal device 111 captures program data and CM data via a CD-ROM reader, a DVD-ROM reader, a USB terminal, a LAN terminal, or the like provided in the operator terminal device 111.
<Data>
Next, various data handled by the content distribution system according to the present invention will be described.
[0021]
FIG. 2 is a diagram illustrating index information and stream data stored in a plurality of storage units of the content production apparatus 103. Stream data that is program data or CM data is stored in association with index information as shown in the figure.
<Program data index information>
FIG. 3 is a table showing a specific example of the content described in the index information of the program data. The index information of the program data includes various information such as a stream ID, a reproduction time, a CM insertion allowable time, video switching, audio switching, a recording date, a keyword, and the like. Create using
[0022]
The stream ID 301 is a unique number assigned in the order in which the stream data is written in the program data storage unit 105.
The playback time 302 is the playback time of the program data, and is expressed in units of hours, minutes, and seconds.
The CM insertion allowable time 303 is a time position on the reproduction time axis of the program data, which is determined by considering that the operator may view the program data and insert a CM, and includes hours, minutes, and seconds. Expressed in units. The scene in which it is recognized that a commercial may be inserted is, for example, a time when the offense and defense changes in baseball. When inserting a CM at the time position of the program data indicated by the CM insertion allowable time 303, the combining unit 109 divides the program data into two at a data position corresponding to the time position and divides the program data into two program data. To the CM data.
[0023]
The video switching 304 is identification information of a video transition effect added to a coupling portion when program data and CM data are combined. There are types such as fade-in / out and wipe-in / out.
The sound switching 305 is identification information of a sound transition effect added to a connection portion when program data and CM data are combined. There are types such as fade-in / out and sustain.
[0024]
The recording date 306 is a date recorded in the program data storage unit 105, and is expressed in units of year, month, and day. When a plurality of pieces of program data are detected by the search unit 108, the combining unit 109 combines these pieces of program data, with the oldest recording date first in the playback order.
The keyword 307 is a keyword related to the program data.
[0025]
Here, the creation of the index information of the program data by the operator will be specifically described. First, the operator activates application software dedicated to index creation of program data installed in the operator terminal device 111 and loads the program data into the operator terminal device 111.
FIG. 4 is a GUI (Graphical User Interface) window for the operator to create index information of program data taken into the operator terminal device 111.
[0026]
The GUI window 400 includes a video display unit 401, a program data operation button 402, a mouse pointer 403, a CM insertion allowable pointer 404, a CM insertion allowable time field 405, a video switching selection field 406, an audio switching selection field 407, a keyword input field 408, It consists of a decision button 409.
The video display unit 401 displays a frame picture at the program data track position indicated by the CM insertion permission pointer 404.
[0027]
The program data operation buttons 402 are a group of buttons including buttons for play, pause, stop, back skip, front skip, volume control, and the like.
The mouse pointer 403 is a pointer that moves in conjunction with the movement of a mouse provided in the operator terminal device 111.
The CM insertion allowable pointer 404 moves right and left in conjunction with pressing of a left arrow key and a right arrow key of a keyboard provided on the operator terminal device 111, and indicates a reproduction time position in a program data track representing program data on a time axis. It is. It is also possible to operate with a mouse. The operator can operate the CM insertion permission pointer 404 to specify a time position at which insertion of a CM is permitted.
[0028]
The CM insertion allowable time field 405 is a field for receiving an input of a CM insertion allowable time from an operator, and displays a reproduction time position of a program data track indicated by the CM insertion allowable pointer 404 when no time is input. When the time is input, a frame picture at the input reproduction time is displayed on the screen 401.
[0029]
The video switching selection field 406 is a field for receiving selection of a video transition effect. When the inverted triangle button is pressed, a list of types of transition effects that can be selected is displayed, and the operator can select one transition effect from the displayed list.
The sound switching selection field 407 is a field for receiving selection of a sound transition effect. Similarly to the image switching selection field 406, when the inverted triangle button is pressed, a list of selectable transition effects is displayed in a list, and the operator can select one transition effect from the displayed list.
[0030]
The keyword input field 408 is a field for receiving an input of a keyword related to the program data, and the operator can input a plurality of keywords.
The decision button 409 is a button for deciding to store the information entered in the various fields as index information. When the enter button 409 is pressed, the fetched program data and index information are stored in the program data storage unit 105 in association with each other.
[0031]
<CM data index information>
Next, the index information of the CM data will be described. FIG. 5 is a table showing a specific example of the content described in the index information of the CM data. The index information of the CM data includes various kinds of information such as a CMID, a reproduction time, and a keyword, and the information is created by an operator using the operator terminal device 111.
[0032]
The CMID 501 is a unique number assigned in the order in which the CM data is written in the CM data storage unit 106, and includes character information of “CM” indicating CM data, and is used as attribute information.
The keyword 502 is a keyword requested by the CM sponsor. For example, in the case of a sports drink CM, keywords such as sports, baseball, soccer, and tennis are input so as to be combined with program data related to sports.
[0033]
The reproduction time 503 is the reproduction time of the CM data, and is expressed in units of hours, minutes, and seconds.
<Price list>
Next, a content price table will be described. FIG. 6 is a diagram showing an example of the price list. According to the price table 601, if the user does not pay for the content at all, the number of CMs to be added is five, and as the price paid by the user increases by 100 yen, the number of CMs decreases by one. If the user pays a maximum of 500 yen each time, the CM is not added at all.
[0034]
<Content request information>
Next, content request information transmitted from the user terminal device to the distribution server 101 will be described.
When a user requests content from the content distribution system 100, first, the application software dedicated to content request installed on the user terminal device is started. FIG. 7 is a GUI window displayed on the display of the user terminal device when the application software is started.
[0035]
The GUI window 730 includes a content keyword input field 701, a price input field 702, and a send button 703.
The content keyword input field 701 is a field for receiving an input of a keyword related to content from the user. The user can input a plurality of keywords by inserting a space between the keywords.
[0036]
The price input field 702 is a field for accepting an input of an amount that the user is willing to pay for the content. Since the price list as shown in FIG. 6 has been sent to the user from the content distributor in advance, the user may determine the price to pay for the content by looking at the price table.
The transmission button 703 is a button for deciding to transmit the information entered in the content keyword input field 701 and the price input field 702 in the content request information.
[0037]
Next, the configuration of the information included in the content request information will be described. FIG. 8 is a diagram illustrating a configuration of information included in the content request information.
The distribution server address 801 is the IP address of the distribution server that is the transmission destination.
The terminal address 802 is the IP address of the user terminal device that is the transmission source.
[0038]
The keyword information 803 is a keyword input by the user.
The price information 804 is the amount input by the user.
<Operation>
Next, the operation of the content distribution system 100 will be described. FIG. 9 is a flowchart illustrating processing performed by the content distribution system 100.
[0039]
First, the distribution server 101 receives the content request information transmitted from the user terminal device (Step S1). The keyword and price information included in the received content request information are transmitted to the content production device 103.
The CM addition determining unit 107 of the content production device 103 determines whether to add a CM to the content and sets the number of CMs to be added based on the transmitted price information (step S2).
[0040]
When it is determined that a CM is to be added to the content (step S3: YES), the search unit 108 searches the CM data storage unit 106 for CM data based on the keyword information and extracts a set number of CM data (step S4). ). Then, it moves to step S5.
In step S3, when it is determined not to add the CM to the content (step S3: NO), the process proceeds to step S5.
[0041]
In step S5, the search unit 108 searches for and extracts program data from the program data storage unit 105 based on the keyword information. Each of the extracted stream data is combined by the combining unit 108 (Step S6).
When combining the program data and the CM data in combining the stream data (step S7: YES), the transition effect processing unit 110 adds a transition effect to the combined portion (step S8). When the program data or the CM data is combined (step S7: NO), the transition effect processing unit 110 does not add the transition effect to the combined portion. The combined stream data is output to distribution server 101.
[0042]
The distribution server 101 stores the content output from the content production device 103, and distributes the content to the user terminal device that transmitted the content request information (step S9).
FIG. 10 is a diagram schematically illustrating an example of the content output from the content production device 103. The content 1000 includes program data 1, program data 2, CM data, and the like. The CM data is inserted and coupled to a data position indicated by the CM insertion allowable time described in the index information of the program data 2. A transition effect 1001 and a transition effect 1002 are added to a connection portion between the program data 2 and the CM data.
[0043]
The transition effect 1001 and the transition effect 1002 have a transition effect indicated by the identification information described in the item of video switching and audio switching of the index information of the program data 2 added.
<Other modifications>
Note that the present invention is not limited to the above embodiment, and the following modified examples are also conceivable.
(1) In the above-described embodiment, the content distribution system 100 has been described as a system including the content production device 103, the distribution server 101, and the operator terminal device 111. However, each functional unit has any device in the system. For example, the distribution server 101 may include the search unit 108. Further, the content distribution system according to the present invention may be configured by one device.
(2) In the above embodiment, when the program data and the CM data are combined, the transition effect indicated by the identification information described in the item of video switching and audio switching of the index information of the program data is added. Alternatively, the type of the transition effect may be selected based on the personal information stored in the user information storage unit 102. For example, if the user is 20 years old or younger, a spiral transition effect is selected, and if the user is 20 years old or more, a wipe-in / out transition effect is selected.
[0044]
Further, in the user terminal device, the selection of the type of the transition effect may be received from the user, and the selected transition effect may be added.
(3) In the above embodiment, only one CM insertion allowable time can be set for one program data. However, a plurality of CM insertion allowable times may be set. Alternatively, video switching and audio switching corresponding to each set CM insertion allowable time may be set.
(4) In the above embodiment, the CM data is searched and extracted based on the keyword sent from the user terminal device. However, the present invention is not limited to this, and the personal information stored in the user information storage unit 102 may be used. CM data may be searched and extracted based on the CM data, or CM data uniquely defined by a content distributor may be added to the content.
(5) The processing procedure (such as the procedure shown in FIG. 9) of the content distribution system 100 described in the above embodiment may be an invention of a content distribution method. Further, the present invention may be a computer program for causing a computer to realize the content distribution method, or may be a digital signal including the computer program.
(6) The present invention provides a computer-readable recording medium capable of reading the computer program or the digital signal, for example, a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray). Disc), or may be recorded in a semiconductor memory or the like.
(7) In the present invention, the computer program or the digital signal may be transmitted via an electric communication line, a wireless or wired communication line, a network represented by the Internet, or the like.
[0045]
【The invention's effect】
As is apparent from the above description, the content distribution system according to the present invention includes a storage unit that stores a plurality of stream data, a reception unit that receives content request information from a user terminal, and a content request that is received by the reception unit. Extracting means for extracting a plurality of stream data from the storage means in accordance with the information, and adding a transition effect to each connected portion when combining the plurality of extracted stream data into a series of stream data Determination means for determining whether or not it is based on a predetermined condition, and combining the extracted stream data so as to form a series of stream data, and providing a transition effect to a combined portion that has been positively determined by the determination means. Combining means for adding, and the stream data combined by the combining means, Characterized in that it comprises a distribution means for distributing addressed over THE terminal.
[0046]
Accordingly, under the condition that the program data and the CM data are combined, a transition effect is added to the combined portion, so that the switching from the program to the CM becomes smooth, and the user viewing the content becomes uncomfortable. Can be eliminated. Further, the storage unit further stores attribute information indicating an attribute of each of the stored stream data, and the predetermined condition is that only one of the two stream data to be combined has a specific attribute. The coupling means may add a transition effect to a coupling part satisfying the predetermined condition.
[0047]
As a result, if only one of the two stream data to be combined is the stream data having the CM attribute, the transition effect is added to the combined portion, so that the switching between the program and the CM becomes smooth, and the content is transferred. It is possible to prevent the viewing user from being uncomfortable.
The specific attribute is a CM attribute indicating that the stream data is a CM, and the content request information includes price information indicating an amount paid by the user for the content requested by the user. Setting means for setting the number of the CM attribute stream data to be extracted from the storage means in accordance with information, wherein the extracting means stores the CM attribute stream data by the number set by the setting means; It may be extracted from the means.
[0048]
As a result, the number of CMs to be added to the content is set according to the price paid by the user for the content. If the number of CMs is 0, there is no connection between the program and the CM, so that no transition effect is added.
[Brief description of the drawings]
FIG. 1 is a diagram showing a functional configuration of a content distribution system.
FIG. 2 is a diagram showing a configuration of stream data and index information.
FIG. 3 is a table showing a specific example of contents described in index information of program data;
FIG. 4 is a GUI window displayed on a display of the operator terminal device.
FIG. 5 is a diagram illustrating a data structure of data stored in a CM data storage unit.
FIG. 6 is a table showing a specific example of contents described in index information of CM data.
FIG. 7 is a GUI window displayed on a display of the user terminal device.
FIG. 8 is a diagram showing various types of information constituting the content request information.
FIG. 9 is a flowchart showing the operation of the content distribution system.
FIG. 10 is a conceptual diagram of a content obtained by adding a transition effect to a portion where program data and CM data are combined.
[Explanation of symbols]
10, 11 user terminal device
20 Network
100 contents distribution system
101 Distribution server
102 User information storage unit
103 Content Production Equipment
104 Input / output unit
105 Program Data Storage Unit
106 CM data storage
107 CM addition decision unit
108 Search unit
109 joint
110 Transition effect processing unit
111 Operator terminal device

Claims (10)

Storage means for storing a plurality of stream data;
Receiving means for receiving content request information from the user terminal;
Extracting means for extracting a plurality of stream data from the storage means according to the content request information received by the receiving means;
When combining a plurality of extracted stream data into a series of stream data, a determination unit that determines whether to add a transition effect to each combined portion based on a predetermined condition,
Combining means for combining the extracted stream data into a series of stream data, and adding a transition effect to a combined portion for which a positive determination has been made by the determining means;
A delivery unit that delivers the stream data combined by the combining unit to the user terminal. The storage unit further stores attribute information indicating an attribute of each of the stored stream data,
The predetermined condition is that only one of the two stream data to be combined is stream data of a specific attribute,
The content distribution system according to claim 1, wherein the combining unit adds a transition effect to a combined portion that satisfies the predetermined condition. The specific attribute is a CM attribute indicating that the stream data is a CM,
The content request information includes price information indicating the amount paid by the user for the content requested by the user,
Setting means for setting the number of the CM attribute stream data to be extracted from the storage means according to the price information;
3. The content distribution system according to claim 2, wherein the extraction unit extracts the number of the stream data having the CM attribute from the storage unit, the number being set by the setting unit. In the storage unit, identification information for identifying the type of the transition effect is stored in association with each stream data having no CM attribute.
The combining means adds a transition effect indicated by identification information associated with stream data having no CM attribute among the two stream data to be combined, to the combined part that has been positively determined by the determining means. The content distribution system according to claim 3, wherein: Personal information storage means for storing personal information of each user;
Selecting means for selecting a type of transition effect to be added according to the personal information,
4. The method according to claim 1, wherein the combining unit adds the transition effect selected by the selecting unit to the combined portion that has been positively determined by the determining unit. 5. Content distribution system. The storage means stores stream data having no CM attribute in association with position information indicating a position on the stream data reproduction time axis at which insertion of a CM is permitted,
The content distribution system according to any one of claims 1 to 5, wherein the combining unit inserts and combines the stream data with the CM attribute preferentially at the position indicated by the position information. The content request information includes keyword information related to the content requested by the user,
The storage means stores a keyword associated with each stored stream data in association with the stream data.
A search unit that searches the storage unit for stream data related to the keyword based on the keyword information;
The content distribution system according to claim 1, wherein the extraction unit extracts the stream data detected by the search unit from the storage unit. A receiving step of receiving content request information from the user terminal;
An extracting step of extracting a plurality of stream data from a storage unit storing a plurality of stream data in accordance with the content request information received in the receiving step;
When combining the plurality of stream data extracted in the extraction step to become a series of stream data, a determination step of determining whether to add a transition effect to each combined portion based on a predetermined condition,
A combining step of combining the stream data extracted in the extracting step and adding a transition effect to a combined portion for which a positive determination has been made in the determining step;
Distributing the stream data combined in the combining step to the user terminal. A computer program used for a content distribution system including a CPU,
A receiving step of receiving content request information from the user terminal;
An extracting step of extracting a plurality of stream data from a storage unit storing a plurality of stream data in accordance with the content request information received in the receiving step;
When combining the plurality of stream data extracted in the extraction step to become a series of stream data, a determination step of determining whether to add a transition effect to each combined portion based on a predetermined condition,
A combining step of combining the stream data extracted in the extracting step and adding a transition effect to a combined portion for which a positive determination has been made in the determining step;
A distribution step of distributing the stream data combined in the combining step to the user terminal. A recording medium on which the computer program according to claim 9 is recorded.

Images