Video distribution system, video distribution method, and video distribution program

Abstract

To provide a new moving image distribution system, moving image distribution method, and moving image distribution program that can promote the use of a co-starring function.SOLUTION: In a moving image distribution system 1, a server device distributes a moving image including an animation of a character object generated based on the movement of a distribution user to viewing user devices and a distribution user device, generates an invitation request based on settings determined by the distribution user, selects a destination user to receive an invitation from among a plurality of viewing users who view the moving image based on the invitation request, sends the invitation to the destination user, generates a co-starring moving image in which the distribution user and the destination user perform together in response to receiving a co-starring application for applying co-starring with the distribution user from the destination user who received the invitation, and causes each user device of one or more viewing users to reproduce the co-starring moving image.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The invention disclosed in this specification relates to a video distribution system, a video distribution method, and a video distribution program. [Background technology]

[0002] Various video distribution services have been known for some time. In recent years, a video distribution system that generates animation of a character object based on the movement of a distribution user and live-distributes a video including the animation of the character object has been attracting attention. Such a video distribution system is disclosed, for example, in JP2015-184689A (Patent Document 1) and "Yusuke Hasegawa, The Dawn of a New Era of Virtual Idols PROJECT MariA, CG WORLD, Japan, Born Digital Co., Ltd., November 10, 2017, Vol. 231, pp. 74-79" (Non-Patent Document 1).

[0003] "Virtual Cast" provided by Dwango Co., Ltd. is known as a video distribution service that distributes videos including character objects generated based on the movements of a broadcasting user. In Virtual Cast, a character object of a broadcasting user participates in a video distributed by another broadcasting user, and the two broadcasting users can virtually appear together in the video through their respective character objects. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-184689 A [Non-patent literature]

[0005] [Non-Patent Document 1] Yusuke Hasegawa, The Dawn of a New Era of Virtual Idols PROJECT MariA, CG WORLD, Japan, Born Digital Co., Ltd., November 10, 2017, Vol. 231, pp. 74-79 [Non-Patent Document 2] Dwango Co., Ltd., "About [Virtual Cast] Tokoro", [online], [Retrieved July 1, 2019], Internet〈URL:https: / / qa.nicovideo.jp / faq / show / 10740?category_id=718&site_domain=default〉 Summary of the Invention [Problem to be solved by the invention]

[0006] In a conventional video distribution system that allows users to virtually perform together, a user who watches a video sends a request to perform together with a distributor user who is distributing the video, and a guest user with whom the user will perform together is selected based on the request. The process for realizing this performance leaves many problems unsolved, as exemplified below.

[0007] First, since users who watch videos want to co-star with popular broadcasters, requests to co-star are concentrated on a few popular broadcasters. Since videos are often live-streamed, requests to co-star tend to be concentrated in a short period of time. This poses the problem of a large processing load for processing requests to co-star that are concentrated in a short period of time. If users who watch videos could unconditionally submit requests to co-star, the problem of the processing load for processing requests to co-star would become apparent.

[0008] Secondly, for less popular broadcasters, there is a problem that the co-starring function is difficult to utilize because there are few or no viewers who will send them co-starring requests.

[0009] Thirdly, in order to maintain the quality of a distributed video, it is of great concern to a broadcaster to decide which broadcaster will be the co-starring partner. However, when virtually co-starring through a character object, except when the user wishes to co-star with a broadcaster who has famous videos, the user is forced to apply to co-star without knowing much about the broadcaster. And since the user does not know the broadcaster well, there is a possibility that the user may hesitate to apply to co-star with the broadcaster. In this way, in the conventional co-starring application process, because information about the broadcaster is not disclosed sufficiently, the user is more likely to apply to co-star with a popular broadcaster who is well known, which strengthens the tendency for applications to be concentrated on the popular broadcaster.

[0010] As described above, there is a problem that the co-play function in the video distribution system is not fully utilized. In addition to the above, there are unresolved problems in the co-play function of the conventional video distribution system. Some of these problems will become clear by referring to the entire specification.

[0011] An object of the present invention is to provide a technical improvement that solves or alleviates at least a part of the problems of the prior art described above. One of the more specific objects of the present invention is to provide a new video distribution system, video distribution method, and video distribution program that can promote utilization of the co-play function. One of the more specific objects of the present invention is to provide a new video distribution system, video distribution method, and video distribution program that can reduce the processing load and / or traffic required to provide the co-play function. [Means for solving the problem]

[0012] One aspect of the present invention relates to a video distribution system including one or more computer processors. In one embodiment, the video distribution system distributes a video including an animation of a character object generated based on a movement of a first user by executing computer-readable instructions, transmits an invitation associated with host user information about the first user to a second user among a plurality of viewing users who watch the video, displays, on a user device of the second user who received the invitation, a character string indicating that the invitation has been received from the first user, the host user information about the first user, and a first co-starring application button for transmitting a co-starring application to apply for co-starring with the first user, generates a co-starring video in which the first user and the second user co-star in response to receiving the co-starring application to apply for co-starring with the first user from the second user who received the invitation, and plays the co-starring video on each user device of one or more viewing users.

[0013] In one aspect of the present invention, the character string, the host user information, and the first co-starring application button are arranged in a window displayed on the user device of the second user.

[0014] In one aspect of the present invention, the one or more computer processors display a pre-second co-starring request button for sending the co-starring request on an image including the video after the window is no longer displayed.

[0015] In one aspect of the present invention, the host user information includes user evaluation information indicating an evaluation of the first user. In one aspect of the present invention, the host user information includes viewer count information indicating the number of users watching the video. In one aspect of the present invention, the host user information includes host user evaluation information indicating an evaluation of the first user in the co-starring video. In one aspect of the present invention, the host user information includes video evaluation information indicating an evaluation of the video.

[0016] In one aspect of the present invention, the invitation includes first benefit information indicating a first benefit to be granted to the second user when the second user makes the co-starring application. In one aspect of the present invention, the invitation includes second benefit information indicating a second benefit to be granted to the second user when the co-starring video in which the second user and the first user co-star is generated.

[0017] In one aspect of the present invention, at least one of the first benefit and the second benefit changes depending on an evaluation of the co-starring video. In one aspect of the present invention, at least one of the first benefit and the second benefit changes depending on an evaluation of the co-starring video by a second user during distribution of the co-starring video.

[0018] In one aspect of the present invention, at least one of the first benefit and the second benefit is an object that the second user can use in the co-starring video.

[0019] In one aspect of the present invention, the co-starring video is a character co-starring video including a first character object generated based on a movement of the first user and a second character object generated based on a movement of the second user.

[0020] In one aspect of the present invention, the co-starring video is an audio co-starring video including a first character object generated based on a movement of the first user and an audio of the second user.

[0021] In one aspect of the present invention, the co-starring video is a character co-starring video including a first character object generated based on the movement of the first user and a second character object generated based on the movement of the second user, or an audio co-starring video including a first character object generated based on the movement of the first user and the audio of the second user, and the character co-starring video and the audio co-starring video can be switched alternately.

[0022] In one aspect of the present invention, the one or more computer processors execute computer-readable instructions to distribute a video including an animation of a character object generated based on the movement of a first user, send an invitation to one or more viewing users watching the video, accept co-starring requests only from one or more inviting users among the multiple viewing users who received the invitation, and in response to accepting the co-starring request, generate a co-starring video in which the first user and a second user included in the one or more inviting users appear together, and distribute the co-starring video to the one or more viewing users.

[0023] One aspect of the present invention relates to a video distribution method executed by one or more computer processors executing computer-readable instructions. In one embodiment, the video distribution method includes the steps of: distributing a video including an animation of a character object generated based on a movement of a first user, sending an invitation associated with host user information related to the first user to a second user among a plurality of viewing users who watch the video, generating a co-starring video in which the first user and the second user appear together in response to receiving a co-starring application from the second user who has received the invitation to request to appear together with the first user, and distributing the co-starring video to one or more viewing users.

[0024] A video distribution program according to one embodiment of the present invention causes one or more computer processors to execute the steps of: distributing a video including an animation of a character object generated based on the movement of a first user; sending an invitation associated with host user information related to the first user to a second user of a plurality of viewing users watching the video; generating a co-starring video in which the first user and the second user appear together in response to accepting a co-starring application from the second user who received the invitation to appear together with the first user; and distributing the co-starring video to one or more viewing users. Effect of the Invention

[0025] According to an embodiment of the present invention, it is possible to provide a novel video distribution system, a video distribution method, and a video distribution program that can promote utilization of the co-starring function. [Brief description of the drawings]

[0026] [Figure 1] 1 is a block diagram showing a video distribution system according to an embodiment. [Diagram 2] 2 is a schematic diagram showing a broadcaster user who broadcasts a video distributed in the video distribution system of FIG. 1 and a broadcaster user device used by the broadcaster user. FIG. [Diagram 3] 2 is a diagram illustrating user information stored in the video distribution system of FIG. 1. [Figure 4] 2 is a diagram illustrating co-starring video information stored in the video distribution system of FIG. 1. FIG. [Diagram 5] FIG. 2 is a diagram showing an example of a display screen displayed on an audience user device 10 in one embodiment. [Figure 6a] FIG. 13 is a diagram showing an example of a display screen displayed on a broadcast user device 20a in one embodiment. [Figure 6b] FIG. 13 is a diagram showing an example of a display screen displayed on a broadcast user device 20b in one embodiment. [Figure 7] FIG. 13 is a diagram illustrating a setting window displayed on a broadcast user device 20b. [Figure 8] FIG. 13 is a diagram showing an example of how the invitation is displayed on a broadcast user device 20a that has received the invitation. [Figure 9] FIG. 2 is a diagram showing an example of a display screen of a co-starring video displayed on a viewer user device 10 in one embodiment. [Figure 10a] FIG. 13 is a diagram showing an example of a display screen of a co-starring video displayed on a broadcast user device 20a in one embodiment. [Figure 10b] FIG. 13 is a diagram showing an example of a display screen of a co-starring video displayed on a broadcast user device 20b in one embodiment. [Figure 11] FIG. 11 is a flow diagram showing a flow of a video distribution process according to an embodiment. [Figure 12] FIG. 11 is a flow diagram showing the flow of a process of inviting someone to a joint performance in one embodiment. [Figure 13] 1 is a flow diagram showing a process flow for distributing a co-starring video in one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Various embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals are used to designate the same or similar components throughout the drawings.

[0028] A video distribution system according to an embodiment will be described with reference to FIG. 1 and FIG. 2. FIG. 1 is a block diagram showing a video distribution system 1 according to an embodiment, and FIG. 2 is a schematic diagram showing users Ua and Ub who distribute videos in the video distribution system 1 and broadcast user devices 20a and 20b used by the users Ua and Ub. The broadcast user device 20a has a function for distributing a video including a character object generated based on the movement of the user Ua in the video distribution system 1, and the broadcast user device 20b has a function for distributing a video including a character object generated based on the movement of the user Ub in the video distribution system 1. As will be described in detail later, the video distribution system 1 can generate a video including character objects of two or more broadcast users and distribute the video. In other words, in the video distribution system 1, two or more broadcast users can virtually appear together in a video through their respective character objects. In this way, when two or more broadcast users virtually appear together in a video through their respective character objects, the video is called a co-starring video.

[0029] Both user Ua and user Ub are broadcast users who broadcast videos including character objects generated based on movements, and are also viewing users who watch videos of other broadcast users. For this reason, broadcast user devices 20a and 20b may have a function to watch videos broadcast in the video broadcasting system 1.

[0030] User Ua and user Ub can send invitations to other viewing users to view their own videos. For example, when a video including a character object generated based on the movement of user Ub is being distributed, user Ub can send an invitation to user Ua to view the video of user Ub. Based on this invitation, the user Ua can make a co-starring application to apply to co-star with the user Ub. When this co-starring application is permitted, a co-starring video including the character object of the user Ub and the character object of the user Ua is generated, and the co-starring video is distributed. An invitation for co-starring in a video can be sent from the distribution user to any other viewing user. When the user Ua participates in a video distributed by the user Ub at the invitation from the user Ub and the user Ub and the user Ua co-star, the user Ub who sent the invitation is called a "host user", and the user Ua who co-starred with the user Ub in response to the invitation is sometimes called a "guest user". The concepts of host user and guest user are relative. For example, conversely to the above example, when the user Ub co-stars in the video of the user Ua based on the invitation sent by the user Ua to the user Ub, the user Ua becomes the host user and the user Ub becomes the guest user. In this specification, for convenience of explanation, it is assumed that an invitation is sent from the user Ub to the user Ua. That is, it is assumed that user Ub is a host user and user Ua is a guest user. However, the description of user Ua in this specification may be expanded to a description of guest users in general as much as possible. Similarly, the description of user Ub in this specification may be expanded to a description of host users in general as much as possible. For example, even if a description is given of broadcast user Ua in this specification, the description may be understood as a description of guest users in general, and a description of broadcast user Ub may be understood as a description of host users in general.

[0031] The video distribution system 1 includes a viewing user device 10, broadcasting user devices 20a and 20b, a server device 60, and a storage 70. The viewing user device 10, the broadcasting user devices 20a and 20b, the server device 60, and the storage 70 are connected to each other via a network 50 so as to be able to communicate with each other. The server device 60 is configured to distribute videos including animations of character objects of the broadcasting user Ua and the broadcasting user Ub, as described below. The server device 60 may be configured to distribute videos other than videos including animations of character objects. In addition to the video distribution service, the server device 60 may provide a social networking service for users to interact with each other, or a platform function for the service.

[0032] In the video distribution system 1, videos are distributed from the server device 60 to the viewing user device 10 and the broadcasting user devices 20a and 20b. The distributed videos are displayed on the display of the viewing user device 10. The viewing users, who are the users of the viewing user device 10, can view the distributed videos on the viewing user device 10. The broadcasting users Ua and Ub can perform while checking the videos being distributed by viewing the distributed videos. Furthermore, the broadcasting users Ua and Ub can view videos including character objects of other users on the broadcasting user devices 20a and 20b. For the sake of simplicity, only one broadcasting user device 10 is shown in FIG. 1, but the video distribution system 1 may include multiple broadcasting user devices. Furthermore, although only two broadcasting user devices are shown in FIG. 1, the video distribution system 1 may include three or more broadcasting user devices. As described above, the broadcasting users Ua and Ub are also viewing users. Therefore, when they are not distributing their own videos, they can view videos distributed by other broadcasting users on the broadcasting user devices 20a and 20b.

[0033] In the illustrated embodiment, the broadcast user device 20a includes a computer processor 21a, a communication I / F 22a, a display 23a, a camera 24a, and a microphone 25a. Similarly, the broadcast user device 20b includes a computer processor 21b, a communication I / F 22b, a display 23b, a camera 24b, and a microphone 25b. Since the broadcast user device 20a and the broadcast user device 20b have similar configurations and functions, when there is no need to particularly distinguish between them, they may be collectively referred to as the broadcast user device 20, and their components may also be referred to as the computer processor 21, etc.

[0034] The computer processor 21 is an arithmetic device that loads an operating system and various programs that realize various functions from a storage into a memory and executes instructions included in the loaded programs. The computer processor 21 is, for example, a CPU, an MPU, a DSP, a GPU, various other arithmetic devices, or a combination of these. The computer processor 21 may be realized by an integrated circuit such as an ASIC, a PLD, an FPGA, or an MCU. Although the computer processor 21 is illustrated in FIG. 1 as a single component, the computer processor 21 may be a collection of multiple physically separate computer processors.

[0035] The communication I / F 22 is implemented as hardware, firmware, or communication software such as a TCP / IP driver or a PPP driver, or a combination of these. The broadcast user device 20 can transmit and receive data to and from other devices via the communication I / F 22.

[0036] The display 23 has a display panel and a touch panel. The touch panel is configured to be able to detect a touch operation (contact operation) by the player. The touch panel can detect various touch operations by the player, such as tapping, double tapping, dragging, etc. The touch panel may be configured to include a capacitance-type proximity sensor and to be able to detect a non-contact operation by the player.

[0037] The camera 24 continuously captures images of the faces of the broadcast users Ua and Ub, and acquires imaging data of the faces of the broadcast users Ua and Ub. The imaging data of the faces of the broadcast users Ua and Ub captured by the camera 24 is transmitted to the server device 60 via the communication I / F 22. The camera 24 may be a 3D camera capable of detecting the depth of a person's face. The camera 24 may capture images of parts of the broadcast users Ua and Ub other than their faces, such as hands, legs, fingers, or other parts, to acquire imaging data.

[0038] The microphone 25 is a sound collection device configured to convert input voice into voice data. The microphone 25 is configured to acquire voice input of the broadcast users Ua and Ub. The voice input of the broadcast users Ua and Ub acquired by the microphone 25 is converted into voice data, and this voice data is transmitted to the server device 60 via the communication I / F 22.

[0039] The viewing user equipment 10 may include components similar to those of the broadcasting user equipment 20. For example, the viewing user equipment 10 may include a computer processor, a communication I / F, a display, and a camera. The viewing user equipment 10 may perform functions similar to those of the broadcasting user equipment 20 by downloading and installing certain application software.

[0040] The viewing user device 10 and the broadcasting user device 20 are information processing devices such as smartphones. The viewing user device 10 and the broadcasting user device 20 may be, in addition to smartphones, mobile phones, tablet terminals, personal computers, e-book readers, wearable computers, game consoles, and various other information processing devices capable of playing videos. In addition to the above components, each of the viewing user device 10 and the broadcasting user device 20 may be equipped with a sensor unit equipped with various sensors such as a gyro sensor, and a storage device for storing various information.

[0041] Next, a description will be given of the server device 60. In the illustrated embodiment, the server device 60 includes a computer processor 61, a communication I / F 62, and a storage 63.

[0042] The computer processor 61 is an arithmetic device that loads an operating system and various programs that realize various functions from the storage 63 or other storages into memory and executes instructions included in the loaded programs. The computer processor 61 is, for example, a CPU, an MPU, a DSP, a GPU, various other arithmetic devices, or a combination of these. The computer processor 61 may be realized by an integrated circuit such as an ASIC, a PLD, an FPGA, or an MCU. Although the computer processor 61 is illustrated in FIG. 1 as a single component, the computer processor 61 may be a collection of multiple physically separate computer processors.

[0043] The communication I / F 62 is implemented as hardware, firmware, or communication software such as a TCP / IP driver or a PPP driver, or a combination of these. The server device 60 can transmit and receive data to and from other devices via the communication I / F 62.

[0044] The storage 63 is a storage device accessed by the computer processor 61. The storage 63 is, for example, a magnetic disk, an optical disk, a semiconductor memory, or any other storage device capable of storing data. Various programs can be stored in the storage 63. At least a portion of the programs and various data that can be stored in the storage 63 may be stored in a storage (for example, the storage 70) that is physically separate from the server device 60.

[0045] In this specification, the programs or instructions included in the programs described as being executed by the computer processor 21 or the computer processor 61 may each be executed by a single computer processor or may be distributed and executed by multiple computer processors. Furthermore, the programs or instructions included in the programs executed by the computer processor 21 or the computer processor 61 may each be executed by multiple virtual computer processors.

[0046] Next, a description will be given of data stored in the storage 63. In the illustrated embodiment, the storage 63 stores model data 63a, object data 63b, user information 63c, co-starring video information 63d, and various other data required for generating and distributing a distribution video.

[0047] The model data 63a is model data for generating animation of a character. The model data 63a may be three-dimensional model data for generating three-dimensional animation, or may be two-dimensional model data for generating two-dimensional model data. The model data 63a includes, for example, rig data (sometimes called "skeleton data") indicating the skeleton of the character's face and parts other than the face, and surface data indicating the shape and texture of the character's surface. The surface data is sometimes called skin data. The model data 63a may include a plurality of model data that are different from each other. The plurality of model data may have different rig data from each other, or may have the same rig data. The plurality of model data may have different surface data from each other, or may have the same surface data.

[0048] The object data 63b includes asset data for constructing a virtual space that constitutes a video. The object data 63b includes data for drawing the background of the virtual space that constitutes the video, data for drawing various objects displayed in the video, and data for drawing various objects other than these that are displayed in the video. The object data 63b may include object position information that indicates the position of the object in the virtual space.

[0049] An example of user information 63c is shown in FIG. 3. As shown in the figure, various data related to a distribution user who uses the video distribution system 1 is stored as the user information 63c in association with the account information of the user. As described later, host user information is generated based on the user information 63c. The user information 63c of a certain user may include user evaluation information indicating an evaluation of the user, viewer number information indicating the number of viewers of videos that the user has distributed or is currently distributing, video evaluation information indicating an evaluation of videos that the user has distributed, and bonus information that is granted to a guest user when co-starring with the user. The user information 63c may include information other than the above.

[0050] The user's account information is, for example, user identification information (user ID) that identifies the user. The user ID is assigned to the user when the user first registers for use of the video distribution system 1.

[0051] The user evaluation information associated with the user's account information is information indicating evaluations of the user by other users. The user evaluation information is, for example, a user evaluation point expressed by a natural number. A user of the video distribution system 1 can distribute a video including his / her own character object via the server device 60. A user's user evaluation point may be updated based on feedback from a viewing user for a video distributed by the user. For example, feedback from a viewing user includes selection of a "Like" button displayed on the viewing screen, selection of a "Boo" button indicating a negative evaluation, gifting of an item displayed on the viewing screen, sending of a comment from the viewing screen, and various other feedback. It is assumed that the "Like" button is selected when a viewer has a favorable impression of the viewed video or the distribution user distributing the viewed video. The "Like" button may be displayed on the viewing screen as an icon including characters such as "Like" or "Like" indicating favorable impressions. It is assumed that the "Boo" button is selected when a viewer has a negative impression, such as antipathy, of the viewed video or the distribution user distributing the viewed video. The "Boo" button may be displayed on the viewing screen as an icon including characters such as "not good" or "dislike" indicating dislike. In this specification, the button and icon for indicating like may be called the "like button" and the "like icon", respectively, and the button and icon for indicating dislike may be called the "dislike button" and the "dislike icon", respectively. The evaluation points may include the number of selections of the like button, the number of selections of the dislike button, the number of giftings (or the gifting amount), the number of comments, or other parameters related to feedback from the viewing user. For example, when positive feedback or negative feedback is provided from the viewing user, the user evaluation points may be increased. The user evaluation points may be a number or amount of positive feedback from the viewing user evaluated as a number of points, or a number or amount of negative feedback from the viewing user evaluated as a number of points.Furthermore, the user evaluation points may be increased or decreased depending on the number of positive feedbacks and the number of negative feedbacks. More specifically, the user evaluation points may be increased when positive feedback is given and decreased when negative feedback is given, or vice versa. The user evaluation points of a certain user may be updated by a trigger other than feedback on a video distributed by the user. For example, when a certain user interacts with other users using a social networking service provided by the server device 60, the user evaluation points may be updated based on the activity using the social networking service.

[0052] The video evaluation information associated with the user's account information is information indicating evaluations from other users of a video distributed by the user. The video evaluation information is, for example, a video evaluation point expressed as a natural number. A user's video evaluation point may be updated based on feedback from a viewing user on a video distributed by the user. When a viewing user who viewed a video provides positive feedback or negative feedback on a video distributed by a user, the user's video evaluation point may be increased. When feedback is provided on a video distributed by a user, both the user evaluation point and the video evaluation point may be updated.

[0053] The viewer number information associated with the user's account information indicates the number of viewing users who have viewed or are currently viewing a video distributed by the user. The viewer number information of a certain user may be the cumulative number of viewing users who have viewed a video distributed by the user. For example, if a certain user has distributed a video 10 times, the viewer number information may be the total number of viewing users in each of the 10 distributions. A new viewing user may start viewing a video while it is being distributed, or a user who was viewing may stop viewing it halfway through. For this reason, the number of viewing users of a certain video may vary depending on the time point from the start of viewing the video. The number of viewing users may be logged at regular time intervals, and the average of the viewing users may be calculated based on this log, and this calculated average may be used as the number of viewing users of the video. For example, for a 10-minute video, the number of viewers may be recorded a total of 10 times at 1-minute intervals, and the average of the 10 recorded numbers of viewers may be used as the number of viewing users of the video. In another embodiment, the number of viewing users who were viewing the video at the end of the video distribution may be used as the number of viewing users. The information on the number of viewers of a video may be information other than the above that is correlated with the number of users viewing the video.

[0054] The privilege information associated with the user's account information indicates a privilege given to a guest user who has applied to perform together with the user in a video distributed by the user. The privilege associated with the account information of a certain user may be set by the user. The privilege associated with the account information of a certain user may be set by a party other than the user. For example, the privilege associated with the account information of a certain user may be determined by the operator of the video distribution system 1. The operator of the video distribution system 1 can determine the privilege based on the usage status of the service by the user and / or users of the video distribution system 1 other than the user and other information. The privilege may be given to all users who have applied to perform together, or may be given only to some of them. For example, a privilege may be given only to guest users who have actually performed together with the host user among the users who have applied to perform together. A first privilege may be given when a co-starring application is made, and a second privilege different from the first privilege may be given when a co-starring application is made and a co-starring actually takes place as a result of the co-starring application. Benefits given to guest users may include points that can be used in the video distribution service provided by the distribution system 1, points that can be used on a specific platform other than the distribution system 1, crypto assets such as Bitcoin, gifts to be given to distribution users (e.g., distribution user Ub), objects that can be displayed in the distributed video, and various other benefits. Objects that can be displayed in the video may be, for example, objects that can be used only in the co-starring video.

[0055] An example of the co-starring video information is shown in Fig. 4. As shown in the figure, various data related to the co-starring video are stored as the co-starring video information 63d in association with co-starring video identification information that identifies the co-starring video. The co-starring video information 63d of a certain co-starring video may include host user evaluation information indicating an evaluation of the host user in the co-starring video, guest user evaluation information indicating an evaluation of the guest user in the co-starring video, and co-starring time information indicating the elapsed time from the start of the co-starring of the co-starring video.

[0056] The host user evaluation information indicates an evaluation of the host user in the co-starring video. The host user evaluation information of a certain host user is, for example, a host user evaluation point expressed as a natural number.

[0057] The guest user evaluation information indicates an evaluation of a guest user. The guest user evaluation information of a certain guest user is, for example, a guest user evaluation point expressed as a natural number.

[0058] The joint appearance time information indicates the amount of time that has elapsed since the start of the joint appearance between the guest user and the host user.

[0059] Next, the functions realized by the computer processors 21a and 21b will be described in more detail. The computer processor 21a functions as a face motion data generating unit 21a1, an invitation presenting unit 21a2, and a co-starring request unit 21a3 by executing computer-readable instructions included in the distribution program. Similarly, the computer processor 21b functions as a face motion data generating unit 21b1 and an invitation request unit 21b2 by executing computer-readable instructions included in the distribution program. At least a part of the functions realized by the computer processors 21a and 21b may be realized by a computer processor other than the computer processors 21a and 21b of the video distribution system 1. At least a part of the functions realized by the computer processors 21a and 21b may be realized by, for example, a computer processor 61 mounted on the server device 60.

[0060] The facial motion data generating unit 21a1 generates facial motion data that is a digital representation of the facial movement of the broadcast user Ua based on the imaging data of the camera 24a. Similarly, the facial motion data generating unit 21b1 generates facial motion data that is a digital representation of the facial movement of the broadcast user Ub based on the imaging data of the camera 24b. The facial motion data is generated as time passes. The facial motion data may be generated at predetermined sampling time intervals. In this way, the facial motion data generated by the facial motion data generating unit 21a1 can digitally represent the facial movement (changes in facial expression) of the broadcast user Ua in a time series, and the facial motion data generated by the facial motion data generating unit 21b1 can digitally represent the facial movement (changes in facial expression) of the broadcast user Ub in a time series. The facial motion data generated by the facial motion data generating units 21a1 and 21b1 is transmitted to the server device 60 via the communication I / Fs 22a and 22b.

[0061] In the broadcast user device 20, in addition to the facial motion data generated by the facial motion data generating unit 21a1, body motion data may be generated which is a digital representation of the position and orientation of each part of the body of the broadcast user Ua, Ub other than the face. The broadcast user device 20 may transmit the body motion data to the server device 60 in addition to the facial motion data. In order to generate the body motion data, the broadcast users Ua, Ub may wear a motion sensor. The broadcast user device 20 may be configured to be able to generate the body motion data based on the detection information of the motion sensor worn by the broadcast users Ua, Ub. The body motion data may be generated at predetermined sampling time intervals. In this way, the body motion data represents the body movements of the broadcast users Ua, Ub in a time series as digital data. The generation of the body motion data based on the detection information of the motion sensor worn by the broadcast users Ua, Ub may be performed, for example, in a photography studio. The photography studio may be equipped with a base station, a tracking sensor, and a display. The base station may be a multi-axis laser emitter. The motion sensor attached to the broadcasting users Ua and Ub may be, for example, a Vive Tracker provided by HTC CORPORATION. The base station provided in the photography studio may be, for example, a base station provided by HTC CORPORATION. A supporter computer may be installed in a room separate from the photography studio. The display of the photography studio may be configured to display information received from the support computer. The server device 60 may be installed in the same room as the room in which the supporter computer is installed. The room in which the supporter computer is installed and the photography studio may be separated by a glass window. In this case, the operator of the supporter computer (sometimes referred to as a "supporter" in this specification) can visually recognize the broadcasting users Ua and Ub. The supporter computer may be configured to be able to change the settings of various devices provided in the photography studio in response to the operation of the supporter.The supporter computer can, for example, set the scanning interval by the base station, set the tracking sensor, and change various settings of various other devices. The supporter can input a message to the supporter computer and display the input message on the display of the photography studio.

[0062] In the broadcast user device 20b, the invitation request unit 21b2 requests the server device 60 to send an invitation in response to an operation by the broadcast user Ub. The invitation is sent from the server device 60 to the broadcast user device 20a and other broadcast user devices. The server device 60 may transmit host user information regarding the broadcast user Ub who requested the transmission of the invitation in association with the invitation from the broadcast user Ub. The invitation may be included in the distributed video, or may be transmitted separately from the distributed video.

[0063] In the broadcast user device 20a, when an invitation from another broadcast user is received from the server device 60, the invitation presenting unit 21a2 presents the invitation to the broadcast user Ua. The invitation is, for example, an invitation inviting the user Ua to a video being broadcast by the user Ub. The invitation presenting unit 21a2 may present host user information related to the broadcast user who requested the transmission of the invitation together with the invitation. The invitation presenting unit 21a2 may display the contents of the invitation and the host user information related to the broadcast user who sent the invitation on the display 23a.

[0064] Based on an operation of the broadcast user Ua on the broadcast user device 20a, the co-starring application unit 21a3 transmits a co-starring application to the server device 60 to request a co-starring with the other broadcast user. As will be described later, the broadcast user device 20a may display an operation button for making a co-starring application in response to receiving an invitation, or may display an operation button for making a co-starring application regardless of whether an invitation has been received or not.

[0065] In this specification, it is assumed that an invitation is sent from a broadcast user Ub using the broadcast user device 20b to a broadcast user Ua using the broadcast user device 20a, so the invitation request unit 21b2 is described as a function executed by the computer processor 21b of the broadcast user device 20b. It is also assumed that the broadcast user Ua sends an invitation, so the broadcast user device 20a may execute a function similar to the invitation request unit 21b2. Similarly, it is also assumed that the broadcast user Ub receives an invitation, so the broadcast user device 20b may execute a function similar to the invitation presenting unit 21a2 and the co-starring request unit 21a3.

[0066] The broadcast user device 20 may execute the broadcast program and / or other programs on a computer processor to realize functions other than the facial motion data generator 21a1. For example, the broadcast user device 20 may execute a viewing program for viewing videos to realize a function of playing received videos. The broadcast program and the viewing program may be packaged in one application software, or may be provided as separate application software.

[0067] The viewing user device 10 may be configured to provide the same functions as the broadcasting user device 20. For example, the viewing user device 10 may realize a function of playing received videos by executing a viewing program for video viewing, or may realize a function similar to that of the face motion data generator 21a1 by executing a broadcasting program.

[0068] Next, a more detailed description will be given of the functions realized by the computer processor 61. The computer processor 61 executes computer-readable instructions included in a distribution program to function as an animation generation unit 61a, a video generation unit 61b, a video distribution unit 61c, an invitation processing unit 61d, a co-starring application processing unit 61e, and a co-starring end processing unit 61f.

[0069] The animation generation unit 61a is configured to generate animation of a character object by applying face motion data generated by the face motion data generation unit 21a of the broadcast user device 20a or the face motion data generation unit 21b1 of the broadcast user device 20b to predetermined model data included in the model data 63a. The animation generation unit 61a can generate animation of the character object so that the facial expression of the character object changes based on the face motion data. Specifically, the animation generation unit 61a can generate animation of a character object that moves in synchronization with the facial movement of the broadcast user Ua based on the facial motion data related to the broadcast user Ua. Similarly, the animation generation unit 61a can generate animation of a character object that moves in synchronization with the facial movement of the broadcast user Ub based on the facial motion data related to the broadcast user Ub.

[0070] When body motion data regarding broadcast users Ua, Ub is provided from the broadcast user device 20, the animation generation unit 61a can generate animation of a character object that moves in synchronization with the body and facial movements of the broadcast users Ua, Ub based on the body motion data and facial motion data regarding the broadcast users Ua, Ub.

[0071] When distributing a video of the broadcast user Ua, the video generating unit 61b can generate a background image showing a background using the object data 63b, and generate a video including this background image and an animation of a character object corresponding to the broadcast user Ua. The video generating unit 61b can synthesize the generated video with the voice of the broadcast user Ua, which is generated based on the voice data received from the broadcast user device 20a. Similarly, when distributing a video of the broadcast user Ub, the video generating unit 61b can generate a background image showing a background using the object data 63b, and generate a video including this background image and an animation of a character object corresponding to the broadcast user Ub. The video generating unit 61b can synthesize the generated video with the voice of the broadcast user Ub, which is generated based on the voice data received from the broadcast user device 20b. In the video generated by the video generating unit 61b, the character objects corresponding to the broadcast users Ua and Ub are displayed superimposed on the background image. In this manner, the video generation unit 61b can generate an animation of a character object that moves in sync with the facial movements of the broadcast user Ua or broadcast user Ub, and generate a video for distribution in which the voice of the broadcast user Ua or broadcast user Ub is synthesized with this animation.

[0072] The video distribution unit 61c distributes the video generated by the video generation unit 61b. This video is distributed to the viewing user device 10 and other viewing user devices via the network 50. The generated video is also distributed to the broadcasting user devices 20a and 20b. The received video is played in the viewing user device 10 and the broadcasting user devices 20a and 20b. The video distribution unit 61c may monitor at least one of the video distribution time and the number of times the video is distributed for each broadcasting user.

[0073] Display examples of a video distributed from the video distribution unit 61c are shown in Fig. 5 and Fig. 6a to Fig. 6b. In these figures, it is assumed that the broadcast user Ub uses the broadcast user device 20b to distribute a video including his / her own character object, and that the video is being played on the viewing user device 10 and the broadcast user devices 20a and 20b. In Fig. 6a, it is assumed that the broadcast user Ua is not performing video distribution, and is watching a video distributed by another broadcast user, broadcast user Ub. For this reason, in the explanation of Fig. 5 and Fig. 6a to Fig. 6b, the broadcast user Ua may also be referred to as a viewing user. Fig. 5 shows a display example of a video being played on the viewing user device 10, Fig. 6a shows a display example of a video being played on the broadcast user device 20a, and Fig. 6b shows a display example of a video being played on the broadcast user device 20b.

[0074] 5, an image 30 including a moving image distributed from a server device 60 is displayed on the display of the viewing user device 10. The image 30 displayed on the viewing user device 10 includes a character object 31 of the broadcasting user Ub generated by an animation generation unit 61a, a gift button 32, a rating button 33, a comment button 34, and a comment display area 35.

[0075] As shown in FIG. 6a, an image 40a including a video distributed from the server device 60 is displayed on the display 23a of the broadcast user device 20a. This image 40a includes a character object 31 of the broadcast user Ub, a gift button 32, a rating button 33, a comment button 34, and a comment display area 35, similar to the image 30. In addition, the image 40a may include a co-starring request button 36. The co-starring request button 36 is an operation button for sending a co-starring request to request a co-starring with the broadcast user Ub in a video distributed by the broadcast user Ub. The broadcast user Ua can send a co-starring request to request a co-starring with the broadcast user Ub from the broadcast user device 20a to the server device 60 by selecting the co-starring request button 36 on the broadcast user device 20a. The broadcast user device 20a can display the image 40a of the distributed video by, for example, executing application software including a viewing program.

[0076] 5, the image 30 displayed on the viewing user device 10 may not include the request to perform together button 36. For example, when application software including a distribution program has not been downloaded or installed in the viewing user device 10, and when application software including a distribution program has not been started in the viewing user device 10, the image 30 is generated so as not to include the request to perform together button 36. In another embodiment, the request to perform together button 36 may also be displayed in the image 30 of the viewing user device 10. For example, when application software including a distribution program has been downloaded or installed in the viewing user device 10, or when application software including a distribution program has been started in the viewing user device 10, the image 30 is generated so as to include the request to perform together button 36.

[0077] As described above, the character object 31 is generated by applying the facial motion data of the broadcast user Ub to the model data included in the model data 63a, and therefore its facial expression changes in synchronization with the facial movements of the broadcast user Ub. When body motion data is provided from the broadcast user device 20, the character object 31 can be controlled so that parts of the character object 31 other than its face also change in synchronization with the body movements of the broadcast user Ub.

[0078] The gift button 32 is displayed on the display screen 30 so as to be selectable by an operation on the viewing user device 10. The gift button 32 can be selected, for example, by a tap operation on an area of ​​the touch panel of the viewing user device 10 where the gift button 32 is displayed. In one embodiment, when the gift button 32 is selected, a window is displayed on the display screen 30 for selecting a gift to be gifted to the broadcasting user (here, broadcasting user Ub) who is broadcasting the video being viewed. The viewing user can purchase a gift to be gifted from the gifts displayed in the window. In another embodiment, in response to the selection of the gift button 32, a window including a list of purchased gifts is displayed on the display screen 30. In this case, the viewing user can select a gift to be gifted from the gifts displayed in the window. When the gift button 32 is selected on the viewing user device 10, gifting information may be transmitted to the server device 60. This gifting information may include gift identification information (gift ID) that identifies the gift to be gifted. In this way, a viewing user who is viewing a video can provide (gift) a desired gift to the distributor user who is distributing the video by selecting the gift button 32.

[0079] The rating button 33 is displayed on the display screen 30 so as to be selectable by a viewing user using the viewing user device 10. The rating button 33 can be selected, for example, by a tap operation on an area of ​​the touch panel of the viewing user device 10 where the rating button 33 is displayed. When the rating button 33 is selected by a viewing user viewing a video, rating update information indicating that a positive rating has been given to the broadcasting user (broadcasting user Ub in the illustrated example) who broadcasts the video or a positive rating has been given to the broadcasting video being broadcast may be transmitted to the server device 60. The server device 60 can update the user information 63c based on the rating update information from the viewing user. For example, at least one of the user rating information and video rating information included in the user information 63c may be updated based on the rating update information from the viewing user. For example, when the rating button 33 included in the image 30 shown in FIG. 5 is selected by the viewing user, at least one of the user rating information and video rating information of the broadcasting user Ub who broadcasts the video displayed on the viewing user device 10 may be updated. When the rating button 33 is selected, rating information indicating that a negative rating has been given to the video may be transmitted to the server device 60. Evaluation information indicating a positive evaluation of a video may be called positive evaluation information, and evaluation information indicating a negative evaluation of a video may be called negative evaluation information. When the server device 60 receives positive evaluation information, the server device 60 may increase at least one of the user evaluation information and the video evaluation information. When the server device 60 receives negative evaluation information, the server device 60 may decrease at least one of the user evaluation information and the video evaluation information.

[0080] The comment button 34 is displayed on the image 30 so that it can be selected by the user. When the comment button 34 is selected, for example, by a tap operation, a comment input window for inputting a comment is displayed on the display screen 30. The viewing user can input a comment via the input mechanism of the viewing user device 10 or the broadcasting user device 20a. The input comment is transmitted from the viewing user device 10 and the broadcasting user device 20a to the server device 60. The server device 60 accepts comments from the viewing user device 10, the broadcasting user device 20a, and other user devices, and displays the comments in a comment display area 35 in the image 30. In the comment display area 35, comments posted by each user are displayed, for example, in chronological order. The comment display area 35 occupies a part of the display screen 30. There is an upper limit to the number of comments that can be displayed in the comment display area 35. In the illustrated example, up to three comments can be displayed in the comment display area 35. When comments are posted that exceed the upper limit set in the comment display area 35, comments are deleted from the comment display area 35 in order of oldest posted comments. Therefore, the more frequently comments are received, the shorter the display time of each comment in the comment display area 35. In one embodiment, a scroll bar is provided on the image 30, and comments that have been deleted from the comment display area 35 can be viewed by operating the scroll bar to scroll through the comments.

[0081] As shown in FIG. 6b, an image 40b distributed from the server device 60 is displayed on the display of the broadcast user device 20b. The image 40b displayed on the broadcast user device 20b includes a character object 31 corresponding to the broadcast user Ub, display command buttons 42a to 42c for displaying gifts received from viewing users in the video, and a comment display area 35. The image 40b displayed on the broadcast user device 20b includes the same background image, character object image, and comment as the images 30 and 40a. On the other hand, the image 40b differs from the images 30 and 40a in that it does not include the gift button 32, the rating button 33, the comment button 34, and the co-starring request button 36, but includes the display command buttons 42a to 42c. The display command buttons 42a to 42c are displayed on the image 40, for example, in response to receiving a gift from a viewing user. In the illustrated embodiment, three display command buttons 42a to 42c are displayed on the image 40. Each of the display instruction buttons 42a-42c is displayed on the image 40 so as to be selectable by the broadcast user. When any of the display instruction buttons 42a-42c is selected, for example, by a tap operation, an operation is performed to display the gift corresponding to the selected display instruction button. In this way, the display instruction buttons 42a-42c are display instruction objects for issuing an instruction to display the gift in the video being broadcast.

[0082] The invitation processing unit 61d transmits an invitation to one or more broadcast user devices included in the video distribution system 1 based on the invitation request from the invitation request unit 21b2. The invitation may be transmitted to the viewing user device 10. As described above, this invitation is a notification for inviting other broadcast users to a video distributed by the broadcast user Ub. The invitation request transmitted from the broadcast user device 20b will be further described with reference to FIG. 7. FIG. 7 is a diagram illustrating a window for setting an invitation request displayed on the broadcast user device 20b. A setting window 41 is displayed on the broadcast user device 20b before or after the start of video distribution. The setting window 41 may be displayed in response to a user operation, or may be displayed at a predetermined timing before or after the start of video distribution without a user operation.

[0083] In the illustrated embodiment, the setting window 41 includes a switch 41a, a stepper 41b, and a password setting area 41c. The switch 41a is a switch for switching whether or not an invitation is to be sent. The switch 41a is switched on or off in response to a user's operation. When the switch 41a is turned on, a setting is changed so that an invitation request is sent to the server device 60. When the switch 41a is turned off, the invitation request is not sent to the server device 60. For example, the invitation request is sent to the server device 60 when the window 41 is closed after the switch 41a is turned on.

[0084] The stepper 41b is an operation unit for increasing or decreasing a numerical value inputted according to a user's operation. In the illustrated embodiment, the stepper 41b can increase or decrease the number of people who can appear together in a video to be distributed or a video currently being distributed. In the example of FIG. 7, 10 people are set as the number of people who can appear together. When "-" is selected in the stepper 41b, the set number decreases from 10 to, for example, 9, and when "+" is selected in the stepper 41b, the set number increases from 10 to, for example, 11. In one embodiment, the number of people who can appear together may mean the upper limit number of users who can appear together at the same time in a video to be distributed. In this embodiment, if the number of people who can appear together is set to 10, 10 users can appear together at the same time in the video through their characters. In another embodiment, the number of people who can appear together at the same time is set to a number smaller than the set upper limit number of the number of people who can appear together (for example, 2 people). In this case, the upper limit number of the number of people who can appear together means the upper limit number of users who can appear together within the distribution time. For example, if the number of people who can appear simultaneously in a video is set to two and the upper limit of the number of people is set to ten, an appearance order is set for the ten guest users, and the guest users appear one by one with the host user according to this appearance order. Instead of or in addition to setting the number of people to appear, the broadcast user Ub may specify the destination of the invitation. For example, candidates for broadcast users who will be the destination of the invitation may be displayed in window 41 so that the broadcast user Ub can select them, and the broadcast user selected by the broadcast user Ub may be set as the destination of the invitation.

[0085] In the password setting area 41c, a co-starring password to be provided to a guest user who wishes to perform together is set. This co-starring password is, for example, a four-digit numeric string. The broadcast user Ub can perform together only with a specific broadcast user among the broadcast users who use the distribution system 1 by notifying the specific broadcast user of the co-starring password. In other words, the broadcast user Ub can avoid performing together with a broadcast user to whom the co-starring password has not been notified. When notifying only a specific broadcast user of the co-starring password, the broadcast user Ub can specify the specific broadcast user by inputting the user ID of the broadcast user to be notified. There is no particular restriction on the method of specifying the specific broadcast user to whom the co-starring password is to be notified. When password input is not required when applying for co-starring, the password setting area 41c is omitted.

[0086] The invitation request unit 21b2 generates an invitation request based on the settings determined through the setting window 41 and other input interfaces as necessary, and transmits the invitation request to the server device 60. The invitation request also includes the user ID of the broadcast user Ub. The invitation request may include the number of co-stars, a co-starring password, information for identifying the broadcast user to whom the invitation is addressed, and other information necessary for making the invitation.

[0087] The invitation processing unit 61d generates an invitation based on the invitation request from the invitation request unit 21b2, and transmits the generated invitation to one or more broadcast user devices. For example, if the invitation destination is specified in the invitation request, the invitation processing unit 61d transmits the invitation to the broadcast user device of the specified broadcast user. If the number of co-stars is set, the invitation processing unit 61d selects broadcast users to be the destinations of the invitation until the number of co-stars set is reached, and transmits the invitation to the selected broadcast users. The broadcast users to be the destinations of the invitation may be selected randomly or based on a predetermined algorithm. If the invitation request includes a co-star password, the invitation processing unit 61d notifies the broadcast user to which the invitation is notified of the co-star password.

[0088] When the invitation processing unit 61d receives an invitation request from the broadcast user Ub, it references the user information 63c stored in the storage 63 and generates host user information for the broadcast user Ub. In one embodiment, the host user information for the broadcast user (broadcast user Ub) who made the invitation request is at least a part of the user evaluation information, video evaluation information, viewer count information, and reward information stored in association with the user account information of the broadcast user (broadcast user Ub) in the user information 63c, or is generated based on these pieces of information. In other words, the host user information for the broadcast user who made the invitation request may be at least one of the user evaluation information, video evaluation information, viewer count information, and reward information stored in association with the user account information of the broadcast user, or may be a score generated based on these pieces of information. It is preferable that the host user information is an index that can be referenced by the broadcast user who received the invitation to determine whether or not to apply to perform together with the broadcast user Ub, and is preferably an index that represents the profile of the broadcast user Ub as a host user, for example.

[0089] The invitation processing unit 61d can transmit the host user information of the broadcast user Ub to the broadcast user Ua and other broadcast users in association with an invitation to invite the broadcast user Ub to perform together. This allows the broadcast user who receives an invitation from the broadcast user Ub to access the host user information of the broadcast user Ub. In other words, the host user information of the broadcast user Ub is associated with the invitation so that it can be presented to the broadcast user who receives the invitation from the broadcast user Ub. In one embodiment, the host user information is transmitted to the broadcast user as part of the invitation. The host user information may be transmitted to the broadcast user together with the invitation. In another embodiment, the host user information is stored in the server device 60, and the invitation may include a link to the host user information stored in the server device 60.

[0090] Next, referring to Fig. 8, a process in a broadcast user device of a broadcast user who has received an invitation will be described. Fig. 8 shows an example of the display of an invitation in a broadcast user device 20a of a broadcast user Ua who has received an invitation from broadcast user Ub. When the invitation presenter 21a2 of the broadcast user device 20a receives an invitation from broadcast user Ub, it displays a window 37 on the display 23a of the broadcast user device 20a as shown in the figure. The window 37 includes a character string "Invited by Ub" indicating that the invitation has been received. This allows the broadcast user Ua to know that an invitation from broadcast user Ub has been received. In addition to the character string, the window 37 includes a display area 37a, a co-starring application button 37b, and a co-starring decline button 37c.

[0091] The invitation presenter 21a2 displays the host user information of the broadcast user Ub in the display area 37a. As described above, the host user information in one embodiment is an index that represents the profile of the broadcast user Ub as a host user. The host user information may be, for example, viewer number information. If the number of viewers of the video broadcast by the broadcast user Ub is large, the broadcast user Ua may be able to acquire many viewers by performing together with the broadcast user Ub. The host user information may be user evaluation information. High user evaluation information of the broadcast user Ub means that the broadcast user Ub has acquired a high reputation from other users. Therefore, if the user evaluation information of the broadcast user Ub is high, the broadcast user Ua may be able to acquire a high reputation by performing together with the broadcast user Ub. The host user information may be video evaluation information. High video evaluation information of the broadcast user Ub means that the video broadcast by the broadcast user Ub has acquired a high reputation. Therefore, if the video evaluation information of the broadcast user Ub is high, the broadcast user Ua may be able to acquire a high reputation by appearing in the video of the broadcast user Ub. The host user information may be privilege information. The benefit information indicates the benefit that the broadcast user Ua will receive by applying to perform together with the broadcast user Ub, or the benefit that the broadcast user Ua will receive by realizing a performance together with the broadcast user Ub. Such benefits serve as an incentive to perform together with the broadcast user Ub.

[0092] The host user information may be a score calculated by a predetermined algorithm based on some or all of the viewer count information, user evaluation information, video evaluation information, and bonus information. For example, since many broadcast users are considered to aim to acquire more viewing users, the viewer count information may be considered more important to guest users than other information included in the user information 63c. Therefore, a weighted average may be calculated for the viewer count information, user evaluation information, and video evaluation information, with more weight being placed on the viewer count information, and the score represented by this weighted average may be used as the host user information. The method of calculating the score indicating the host user information is not limited to the one explicitly described in this specification.

[0093] As described above, the viewer count information, user evaluation information, video evaluation information, and bonus information of broadcast user Ub, as well as the score calculated based on this information, can be indicators of broadcast user Ub's profile as a host user or his / her attractiveness as a co-starring partner. By displaying such host user information in display area 37a, it is possible to convey to broadcast user Ua who received the invitation information that can be referenced when deciding whether or not to co-star with broadcast user Ub who sent the invitation. Broadcast user Ua can decide whether or not to co-star with broadcast user Ub based on the host user information.

[0094] The co-starring application button 37b included in the window 37 is an operation button for transmitting a co-starring application to apply to co-star with the broadcast user Ub in a video that the broadcast user Ub is distributing. The co-starring application is transmitted to the server device 60 by selecting the co-starring application button 37b, and the transmitted co-starring application is accepted by the server device 60. The server device 60 can accept not only the co-starring application from the broadcast user Ua, but also co-starring applications from various broadcast users. If neither the co-starring application button 37b nor the co-starring decline button 37c is selected within a predetermined time after the window 37 is displayed, the window 37 may be erased from the screen. As described above, the video 40a displayed on the broadcast user device 20a may display the co-starring application button 36. Therefore, the window 37 may not include the co-starring application button 37b. If the window 37 does not include the co-starring application button 37b, the broadcast user Ua can select the co-starring application button 36 when applying to co-star with the broadcast user Ub.

[0095] In the illustrated embodiment, the co-starring application button 36 is displayed before the window 37 is displayed. In this case, even before receiving an invitation, the broadcast user Ua can apply to perform with the broadcast user Ub by selecting the co-starring application button 36. In this way, when accepting a co-starring application from a broadcast user who has not received an invitation, an excessive number of co-starring applications may be made. In particular, when the broadcast user Ub is a popular broadcast user, a very large number of co-starring applications may be made. Therefore, in another embodiment of the present invention, the co-starring application button 36 may be displayed only on the broadcast user device of the broadcast user who received the invitation after receiving the invitation. When an invitation is received, the co-starring application button 37b is displayed in the window 37, but the co-starring application button 36 may be displayed in the image 40a after the window 37 disappears from the image. This allows a co-starring application to be accepted only from a user who has received an invitation (hereinafter, sometimes referred to as an "inviting user").

[0096] In one embodiment of the present invention, the co-starring application button 36 may be displayed on the image 40a regardless of whether an invitation has been received. In this case, when the co-starring application button 36 is selected, input of a co-starring password may be requested, and a co-starring request may be sent to the server device 60 only if the co-starring password is authenticated. The broadcast user Ub can control the number of co-starring applications by notifying the co-starring password only to users who approve the co-starring application. The co-starring password may be notified to the user through a messaging function used in the video distribution system 1, a messaging function other than the video distribution system 1 (for example, LINE provided by LINE Corporation), and a channel other than these. In this way, the co-starring password may be sent to a user watching a video distributed by the related user Ub or to other users without being associated with an invitation from the broadcast user Ub. The co-starring password may be included in the video to notify all viewing users who are watching the video of the co-starring password. A broadcast user who does not have enough viewing users can increase the possibility of receiving a co-starring application by sending the co-starring password to many viewing users (which may be all users). This makes it easier for broadcast users who are not very popular to use the co-starring function as a host user.

[0097] When a co-starring application is received from a certain user (for example, broadcast user Ua), the co-starring application processing unit 61e determines whether or not to permit the co-starring application of that user. The co-starring application processing unit 61e may determine whether or not to permit the co-starring of broadcast user Ua and broadcast user Ub based on at least a portion of the user information 63c of the broadcast user Ua who made the co-starring application. For example, if the user evaluation points of the broadcast user Ua who made the co-starring application are greater than a predetermined threshold, the broadcast user Ua may be permitted to co-star with broadcast user Ub, and if the user evaluation points are equal to or less than the threshold, the broadcast user Ua may be denied to co-star with broadcast user Ub. There are no particular limitations on this determination criterion.

[0098] The co-starring application processing unit 61e may perform processing to grant the privilege to the user who has requested to perform a co-starring application when the host user information includes privilege information and the privilege is an object that can be displayed in a video. When the privilege is points that can be used in the video distribution system 1, the co-starring application processing unit 61e may perform processing to grant the points to the user who has requested to perform a co-starring application. When the privilege is an object that can be displayed in a video, the co-starring application processing unit 61e performs processing to grant the object to the user who has requested to perform a co-starring application. For example, an object ID that identifies the object granted as a privilege is stored in association with the user ID of the user who has requested to perform a co-starring application.

[0099] When the co-starring application from the broadcast user Ua is permitted, the co-starring application processing unit 61e generates a co-starring video in which the broadcast user Ua and the broadcast user Ub appear together based on the co-starring application. In order to generate the co-starring video, the co-starring application processing unit 61e acquires face motion data and voice data of the broadcast user Ua from the broadcast user Ua. The face motion data of the broadcast user Ua may be transmitted from the broadcast user device 20a to the server device 60 together with the co-starring application, or may be transmitted from the broadcast user device 20a to the server device 60 in response to a request from the server device 60 after the co-starring application is permitted. When the body movements of the broadcast user Ua are also expressed as animation, the body motion data may be provided to the server device 60 together with the face motion data of the broadcast user Ua. When the co-starring application processing unit 61e cannot acquire face motion data from the broadcast user Ua, it may acquire only voice data from the broadcast user Ua. For example, if the broadcast user device 20a used by the broadcast user Ua does not have the function of the facial motion data generation unit 21a1 or other functions for video distribution, if the function is disabled, or in other cases, the co-starring request processing unit 61e may acquire audio data from the broadcast user Ua without acquiring facial motion data (and body motion data).

[0100] In one embodiment, the co-starring application processing unit 61e generates a co-starring video by adding animation of the character object of the broadcast user Ua to a video being distributed including the character object 31 of the broadcast user Ub based on the facial motion data of the broadcast user Ua. The animation of the character object of the broadcast user Ua may be generated in the animation generation unit 61a based on the facial motion data of the broadcast user Ua. The animation of the character object of the broadcast user Ua may be generated by applying the facial motion data of the broadcast user Ua to the model data for the broadcast user Ua included in the model data 63a. For example, the co-starring application processing unit 61e can generate a co-starring video including the character object of the broadcast user Ua and the character object 31 of the broadcast user Ub by generating a layer including animation of the character object of the broadcast user Ua and superimposing this layer on a video including the character object 31 of the broadcast user Ub. By generating a co-starring video including the character object of the broadcast user Ua and the character object 31 of the broadcast user Ub, even if the broadcast user Ua and the broadcast user Ub are using the video distribution system 1 from points distant from each other, they can virtually appear together in the co-starring video. When the co-starring application processing unit 61e acquires voice data but not face motion data (and body motion data) from the broadcast user Ua, it can generate a co-starring video including the character object 31 of the broadcast user Ub and the voice of the broadcast user Ua by superimposing a voice generated based on the voice data acquired from the broadcast user Ua on a video including the character object 31 of the broadcast user Ub. Even when model data for the broadcast user Ua is not set as the model data 63a, the co-starring application processing unit 61e can generate a co-starring video including the character object 31 of the broadcast user Ub and the voice of the broadcast user Ua by superimposing a voice generated based on the voice data acquired from the broadcast user Ua on a video including the character object 31 of the broadcast user Ub. In this way, the broadcast user Ua can co-star with the broadcast user Ub using his or her own voice.

[0101] When face motion data cannot be obtained from the broadcast user Ua, the co-starring application processing unit 61e distributes a co-starring video including the voice of the broadcast user Ua and the character object 31 of the broadcast user Ub, and then generates a character object of the broadcast user Ua based on the face motion data of the broadcast user Ua at the timing when the face motion data is obtained from the broadcast user Ua, thereby generating a co-starring video including the character object of the broadcast user Ua and the character object 31 of the broadcast user Ub. In this way, the co-starring application processing unit 61e can switch a co-starring video including the voice of the broadcast user Ua and the character object 31 of the broadcast user Ub to a co-starring video including the character object 131 of the broadcast user Ua and the character object 31 of the broadcast user Ub. Conversely, the co-starring application processing unit 61e can switch a co-starring video including the character object 131 of the broadcast user Ua and the character object 31 of the broadcast user Ub to a co-starring video including the voice of the broadcast user Ua and the character object 31 of the broadcast user Ub. In this way, it may be possible to alternate between a co-starring video in which audio co-starring takes place (sometimes referred to as an "audio co-starring video") and a co-starring video in which character objects co-star (sometimes referred to as a "character co-starring video").

[0102] The generated co-starring video is distributed by the video distribution unit 61c. The co-starring video may be created by the broadcast user device 20a. When the co-starring video is generated by the broadcast user device 20a, the co-starring video is transmitted from the broadcast user device 20a to the server device 60 and distributed by the video distribution unit 61c of the server device 60.

[0103] 9 and 10a to 10b show display examples of the co-starring video distributed from the video distribution unit 61c. In these figures, it is assumed that a co-starring application from the distribution user Ua to the distribution user Ub has been approved, and therefore a co-starring video including the character object 131 of the distribution user Ua and the character object 31 of the distribution user Ub is being distributed.

[0104] As shown in FIG. 9, the display of the viewing user device 10 displays a co-starring video image 230 distributed from the server device 60. The co-starring video image 230 displayed on the viewing user device 10 includes a character object 131 of the broadcast user Ua in addition to a character object 31 of the broadcast user Ub. The character object 131 of the broadcast user Ua is generated in the animation generation unit 61a or the co-starring application processing unit 61e as described above. The co-starring video image 230 includes a gift button 32, a rating button 33, a comment button 34, and a comment display area 35, similar to the original distribution image shown in FIG. 5. The co-starring video image 230 may include guest rating buttons 133a and 133b in addition to these. The guest rating button 133a is a button for transmitting positive rating information indicating a positive rating of the guest user (in the illustrated example, the broadcast user Ua is the guest user) to the server device 60, and the guest rating button 133b is a button for transmitting negative rating information indicating a negative rating of the guest user to the server device 60. When the guest rating button 133a is selected by a viewing user who is viewing a video, guest rating information indicating that the guest user has been positively rated may be transmitted to the server device 60, and when the guest rating button 133b is selected, guest rating information indicating that the guest user has been positively rated may be transmitted to the server device 60. The server device 60 may update the guest user rating information in the co-starring video information 63d based on the guest rating information from the viewing user. Although not shown in the figure, one or more host rating buttons for rating the host user may be displayed together with the co-starring video. When the host rating button is selected by a viewing user who is viewing a video, host rating information indicating that the host user (distributor user Ub) has been positively or negatively rated may be transmitted to the server device 60. The server device 60 may update the host user rating information in the co-starring video information 63d based on the host rating information from the viewing user.In one embodiment, the host user information of the broadcast user who sent the invitation (for example, broadcast user Ub) may be generated based on the co-starring video information 63d in addition to or instead of the user information 63c. For example, the host user information of broadcast user Ub may include the host user evaluation information of the co-starring video information 63d, and may be generated based on the host user evaluation information and other information as necessary. The host user evaluation information reflects positive or negative feedback from the viewing user regarding the behavior of the host user in the co-starring video. A broadcast user who has received an invitation can co-star with an excellent host user by applying to co-star when the host user evaluation information of the broadcast user who sent the invitation is a high value (i.e., when the broadcast user has a high evaluation as a host user).

[0105] The image 230 of the co-starring video is a horizontally long image as shown in the figure. The co-starring application processing unit 61e or the video distribution unit 61c may distribute the co-starring video as a horizontally long video. As a result, the image 230 of the co-starring video is displayed as a horizontally long image on the viewing user device 10. In one embodiment, even if the original video (image) is vertically long as shown in FIG. 5, the co-starring video is converted to a horizontally long image and distributed. Since the co-starring video includes character objects of two broadcast users, the horizontally long image makes it easier to display the character objects of the two users without overlapping. For example, in the co-starring video, the left half from the viewpoint of the viewing user may be an area assigned to the character object of the original broadcast user, and the right half may be an area assigned to the character object of the broadcast user who made the co-starring application. The allocation of areas to each broadcast user may be determined arbitrarily so that the character objects do not overlap with each other.

[0106] As shown in Fig. 10a, a co-starring video image 330 distributed from the server device 60 is displayed on the broadcasting user device 20a of the broadcasting user Ua. The co-starring video image 330 displayed on this broadcasting user device 20a contains the same background image, character object image, and comment as the co-starring video image 230 displayed on the viewing user device 10. On the other hand, the co-starring video image 330 differs from the image 230 in that it does not include the gift button 32, the rating button 33, the comment button 34, or the co-starring application button 36, but includes display instruction buttons 42a to 42c.

[0107] A bonus display button 142 may be displayed on the image 330 of the co-starring video displayed on the broadcast user device 20a. The bonus display button 142 is displayed on the image 330 so as to be selectable by the broadcast user Ua. The bonus display button 142 is displayed on the image 330, for example, when the host user information includes bonus information and the bonus is an object that can be displayed on the video. In this case, the bonus display button 142 is associated with an object that is a bonus acquired by the broadcast user Ua making a co-starring application in response to an invitation from the broadcast user Ub. By selecting the bonus display button 142, an object associated with the bonus display button 142 may be displayed on the co-starring video. For example, the object may be an object indicating an accessory that can be worn by a character. In this case, by selecting the bonus display button 142, the accessory that is the object associated with the display instruction button is worn on the character. The bonus display button 142 may not be displayed on the image 330 when the host user information does not include bonus information.

[0108] When the host user information of the broadcast user Ub associated with the invitation received by the broadcast user Ua includes the privilege information, the broadcast user Ua is granted a privilege at least when the broadcast user Ua applies for co-starring and when the co-starring is performed, as described above. The privilege granted to the broadcast user Ua may change according to the evaluation of the co-starring video after the broadcast of the co-starring video has started. For example, when 100 points to be used in the broadcast system 1 are granted as the privilege information, the points can be increased when the evaluation of the co-starring video is high. The evaluation of the co-starring video may be determined based on the evaluation update information transmitted by selecting the evaluation button 33 after the broadcast of the co-starring video has started. In another embodiment, the privilege granted to the broadcast user Ua may change according to the evaluation of the broadcast user Ua during the broadcast of the co-starring video. The evaluation of the broadcast user Ua during the broadcast of the co-starring video may be determined based on the guest user evaluation information of the co-starring video information 63d.

[0109] As shown in FIG. 10b, the display of the broadcast user device 20b displays an image 430 of the co-starring video broadcast from the server device 60. The image 430 of the co-starring video displayed on the broadcast user device 20b includes the same background image, character objects 31, 131, comment 35, and display instruction buttons 42a to 42c as the image 330 displayed on the broadcast user device 20a of the broadcast user Ua, who is the co-starring partner. On the other hand, the image 430 displays an end co-starring button 45 for ending the co-starring. In one embodiment, the end co-starring button 45 may be displayed not only on the image 430 of the co-starring video on the broadcast user device 20b of the broadcast user Ub who received the co-starring request, but also on the image 330 of the co-starring video on the broadcast user device 20b of the broadcast user Ua who made the co-starring request. When the end co-starring button 45 is selected, a process is performed to end the co-starring with the broadcast user Ua in the co-starring video. For example, in response to the end co-starring button 45 being selected on the broadcast user device 20b, a co-starring end instruction is transmitted from the broadcast user device 20b to the server device 60. The broadcast user Ub can set the broadcast user Ua, who is a guest user, as a broadcast user prohibited from appearing while playing the co-starring video. For example, when the broadcast user Ua performs undesirable actions or behavior in the co-starring video, the broadcast user Ua can be set as a broadcast user prohibited from appearing. Setting the broadcast user Ua as a broadcast user prohibited from appearing may be performed by recording the user ID of the broadcast user Ub in the appearance prohibition information of the user information 63c of the broadcast user Ua. For example, when the server device 60 receives a co-starring end instruction from the broadcast user device 20b, the server device 60 can automatically register the broadcast user Ua as a broadcast user prohibited from appearing in the user information 63c of the broadcast user Ub. The broadcast user Ub may set the broadcast user Ua as a broadcast user prohibited from appearing other than when playing the co-starring video. For example, the broadcast user Ua may be set as a broadcast user prohibited from appearing in response to confirming that the broadcast user Ua has posted an undesirable message in the messaging service provided by the video distribution system 1.Conversely to the above example, when the broadcast user Ub behaves or speaks in an undesirable manner, the host user may be set as a co-starring prohibited user in response to the selection of the co-starring end button 45 on the broadcast user device 20a.

[0110] A warning button (not shown) for giving a warning to the guest user may be displayed in the image 430 of the co-starring video on the broadcast user device 20b of the broadcast user Ub, who is the host user. This warning button may be displayed in the image 330 of the co-starring video on the broadcast user device 20a of the guest user Ua. Unlike the co-starring end button 45, the warning button does not immediately end the co-starring, but is assumed to be selected when the guest user takes an undesirable action for the host user, or when the host user takes an undesirable action by the guest user. When the warning button is selected on the broadcast user device of the host user (e.g., the broadcast user device 20b of the broadcast user Ub), a warning instruction is transmitted from the broadcast user device 20b to the server device 60. When the warning button is selected on the broadcast user device of the host user, warning information indicating that a warning has been issued by the host user may be displayed on the image 330 of the co-starring video displayed on the broadcast user device of the guest user (e.g., the broadcast user device 20a of the broadcast user Ua). The warning information may be displayed on the image 230 on the viewing user device 10. The co-starring video including the warning information may be generated in the server device 60. By displaying the warning information on the image 230 of the viewing user, it is possible to show the viewing user that the host user is dealing with the undesirable behavior of the guest user. The server device 60 counts the number of times a warning instruction is issued from a certain host user to a certain guest user, and when the number of warning instructions reaches a predetermined number (e.g., three times), the host user and the guest user are notified of the warning instruction. The number of times a warning instruction is issued from a certain host user to a certain guest user may be associated with the user account of the host user and stored as user information 63c. The process for ending the co-starring based on the warning instruction issued a predetermined number of times or more may be the same as the process for ending the co-starring based on the above-mentioned co-starring end instruction.

[0111] The co-starring application processing unit 61e may issue a video ID for identifying the created co-starring video. The co-starring video information on the co-starring video may be stored in the storage 63 in association with the video ID. As described above, the co-starring time information of the co-starring video may be updated in association with the video ID of the co-starring video being distributed. The video distribution unit 61c may monitor the distribution time of the co-starring video and update the information based on the monitoring result.

[0112] The guest user evaluation information in the co-starring video information may be updated based on positive evaluation information indicating a positive evaluation of the guest user, the broadcast user Ua, from the viewing user device 10 and negative evaluation information indicating a negative evaluation of the broadcast user Ua. For example, the server device 60 may increase the guest user evaluation points when it receives positive evaluation information indicating a positive evaluation of the broadcast user Ua from the viewing user device 10, and may decrease the guest user evaluation points when it receives negative evaluation information indicating a negative evaluation of the broadcast user Ua. If a viewing user stops watching a co-starring video midway, the viewing user may not be satisfied with the co-starring video. Therefore, if a viewing user stops watching a co-starring video midway, the guest user evaluation points of the guest user may be decreased as a result of a negative evaluation of the guest user. At least one of the positive evaluation information and the negative evaluation information may be updated to decrease over time. For example, even if a broadcast user Ua has positive evaluation information of 100 points at a certain time, the positive evaluation information may be updated to approach zero over time. If the negative evaluation information for a certain user exceeds a predetermined value, the user may be prohibited from co-starring with other users. For example, a process may be performed in which the co-starring request button is not displayed in an image displayed on a broadcast user device of a user whose negative evaluation information exceeds a predetermined value.

[0113] When a co-starring end condition for ending the co-starring between the guest user broadcast user Ua and the host user broadcast user Ub is satisfied, the co-starring end processing unit 61f performs processing for ending the co-starring between the guest user broadcast user Ua and the host user broadcast user Ub. In one embodiment, when the co-starring end processing unit 61f receives a co-starring end instruction from the broadcast user device 20b of the host user broadcast user Ub, it determines that the co-starring end condition is satisfied and performs processing for ending the broadcast of the co-starring video. For example, when the co-starring end processing unit 61f receives a co-starring end instruction, it stops generating the animation of the broadcast user Ua's character object 131 and generates a video that does not include the broadcast user Ua's character object 131 but includes the broadcast user Ub's character object 31. In other words, it excludes the character object 131 of the guest user broadcast user Ua from the video to be broadcast. By excluding the character object 131 of the guest user broadcast user Ua, the co-starring between the broadcast user Ua and the broadcast user Ub ends. After the co-starring ends, the distribution of the video including the character object 31 but not the character object 131 may continue. The video distributed after the co-starring ends may be generated as a vertically long video as shown in FIG. 5. That is, the orientation of the video may be changed in response to the end of the co-starring. In one embodiment, the orientation of the video may be changed from landscape to portrait in response to the end of the co-starring. In another embodiment, the distribution of the video by the distribution user Ub, who is the host user, may be ended in response to the end of the co-starring. In one embodiment, if a co-starring application from another user has already been received when the co-starring with the distribution user Ub ends, the co-starring application processing unit 61e may determine whether or not the other user can co-star based on the co-starring application.

[0114] In one embodiment, the co-starring end processing unit 61f determines whether the character object 131 of the broadcast user Ua, who is a guest user, is in a non-active state, and when it is determined that the character object 131 is in a non-active state, it determines that the co-starring end condition is satisfied. In one embodiment, whether the character object 131 of the broadcast user Ua is in a non-active state is determined based on at least one of face motion data, body motion data, and voice data received from the broadcast user device 20a of the broadcast user Ua. Since the face motion data, body motion data, and voice data are all data indicating the movement of the broadcast user, they may be collectively referred to as "motion data" in this specification. Whether the character object 131 of the broadcast user Ua is in a non-active state is determined based on the motion data, that is, based on at least one of the face motion data, body motion data, and voice data. For example, if there is no input of face motion data from the broadcast user device 20a of the broadcast user Ua for a certain period of time, the facial expression of the character object 131 of the broadcast user Ua in the co-starring video will not move for that certain period of time, so that the character object 131 may be determined to be in a non-active state. When there is no input of body motion data from the broadcast user device 20a of the broadcast user Ua for a certain period of time, the body movement of the character object 131 of the broadcast user Ua in the co-starring video becomes stationary for the certain period of time, and therefore the character object 131 may be determined to be in an inactive state. When there is no input of voice data from the broadcast user device 20a of the broadcast user Ua for a certain period of time, the character object 131 of the broadcast user Ua becomes silent for the certain period of time in the co-starring video, and therefore the character object 131 may be determined to be in an inactive state.

[0115] In one embodiment, the co-starring end processing unit 61f ends the co-starring by excluding the character object 131 of the broadcast user Ua, who is a guest user, from the video in accordance with the co-starring video information of the co-starring video being distributed. For example, when the guest user evaluation information is a guest user evaluation point, the co-starring end processing unit 61f can end the co-starring with the broadcast user Ua by excluding the character object 131 of the broadcast user Ua from the video when the guest user evaluation point becomes smaller than a predetermined threshold value. The more negative evaluation information is received from the viewing user about the broadcast user Ua, who is a guest user, the smaller the guest user evaluation point becomes. Therefore, by determining whether or not to end the co-starring with the broadcast user Ua based on the guest user evaluation point, it is possible to avoid long-term co-starring with a user who is poorly rated by the viewing user.

[0116] Next, a video distribution process according to one aspect will be described with reference to Fig. 11. Fig. 11 is a flow diagram showing the flow of the video distribution process in one embodiment. In the video distribution process described with reference to Fig. 11, it is assumed that a video generated based on face motion data acquired by the broadcast user Ub using the broadcast user device 20b is distributed.

[0117] First, in step S11, face motion data, which is a digital representation of the facial movement (expression) of the broadcast user Ub, is generated. The generation of the face motion data is performed, for example, by the face motion data generator 121b of the broadcast user device 20b. In the broadcast user device 20b, voice data may be generated based on voice input from the broadcast users Ua and Ub. The generated face motion data and voice data are transmitted to the server device 60.

[0118] Next, in step S12, the facial motion data from the broadcast user device 20b is applied to the model data for the broadcast user Ub, thereby generating an animation of the character object 31 that moves in synchronization with the facial movement of the broadcast user Ub. The generation of this animation is performed, for example, by the animation generation unit 61a described above.

[0119] Next, in step S13, a moving image including an animation of the character object 31 of the broadcast user Ub is generated. The voice of the broadcast user Ub may be synthesized into this moving image. The animation of the character object 31 is displayed superimposed on a background image. The generation of this moving image is performed, for example, by the above-mentioned moving image generating unit 61b.

[0120] Next, the process proceeds to step S14, where the video generated in step S13 is distributed. This video is distributed to the viewer user device 10, other viewer user devices, and distributor user devices via the network 50. When the distributed video is played on the viewer user device 10, for example, an image of the video as shown in FIG. 5 is displayed on the viewer user device 10. The video is continuously distributed for a predetermined distribution period. The distribution period of the video can be set to, for example, 30 seconds, 1 minute, 5 minutes, 10 minutes, 30 minutes, 60 minutes, 120 minutes, or any other time. The video is distributed, for example, by the above-mentioned video distribution unit 61c.

[0121] Next, the process proceeds to step S15, where it is determined whether or not a termination condition for ending the distribution of the video has been met. The termination condition may be, for example, that the end time of the distribution has been reached, that the broadcast user Ub has performed an operation to end the distribution on the broadcast user device 20b, or other conditions. If the termination condition has not been met, the processes of steps S11 to S14 are repeatedly executed, and the distribution of the video including animation synchronized with the movements of the broadcast user Ub, or the co-starring video if the co-starring with the broadcast user Ua is continuing, is continued. If it is determined that the termination condition has been met for the video, the distribution process of the video is terminated.

[0122] Next, referring to Fig. 12, a process of presenting an invitation to an inviting user in one embodiment will be described. Fig. 12 is a flow diagram showing a process flow in which a broadcast user who is broadcasting a video invites another broadcast user to co-star in the video in one embodiment. In the broadcast process of a co-starring video described with reference to Fig. 12, it is assumed that a broadcast user Ub invites a broadcast user Ua who is watching a video including a character object of the broadcast user Ub to co-star. The invitation process to co-star may be performed in parallel with the broadcast process of the video shown in Fig. 11, or may be performed before the start of the broadcast process of the video shown in Fig. 11.

[0123] First, in step S21, before or during the start of distribution of a video including a character object of broadcast user Ub, an invitation request is transmitted to server device 60. The invitation request is transmitted from broadcast user device 20b to server device 60 in response to an operation by broadcast user Ub. The process of transmitting the invitation request is performed, for example, by invitation request unit 21b2.

[0124] Next, in step S22, host user information of the broadcast user Ub is generated based on an invitation request from the broadcast user Ub. As described above, the host user information is generated by referring to at least one of the user information 63c and the co-starring video information 63d stored in the storage 63. The host user information generation process is performed, for example, by the invitation processing unit 61d described above.

[0125] Next, in step S23, an invitation to co-star in a video of broadcast user Ub is transmitted to one or more broadcast user devices including broadcast user device 20a of broadcast user Ua. Also, in association with this invitation, host user information of broadcast user Ub is transmitted. The transmission process of the invitation and host user information is performed, for example, by the invitation processing unit 61d described above.

[0126] Next, in step S24, the invitation is received by the broadcast user device 20a of the broadcast user Ua. The broadcast user device 20a displays the character string "Invited by Ub," indicating that the invitation was received from the broadcast user Ub, and the host user information of the broadcast user Ub. As described above, the host user information is information generated based on the user information 63c, and is preferably an index representing the attractiveness of the broadcast user Ub as a co-starring partner. The display of the host user information is performed, for example, by the invitation presenter 21a2 described above. The broadcast user Ua can decide whether or not to make a co-starring application based on the host user information of the broadcast user Ub displayed on the broadcast user device 20a. The broadcast user Ua can make a co-starring application by selecting the co-starring application button 37b displayed on the broadcast user device 20a together with the host user information.

[0127] When a co-starring application is made, a co-starring video distribution process is then performed. The co-starring video distribution process in one embodiment will be described with reference to FIG. 13. FIG. 13 is a flow diagram showing the flow of a process for distributing a co-starring video in one embodiment. In the co-starring video distribution process described with reference to FIG. 13, it is assumed that a co-starring application is made to the broadcast user Ub by the broadcast user Ua who is watching a video including the character object of the broadcast user Ub. The co-starring video distribution process is performed in parallel with the video distribution process shown in FIG. 11.

[0128] First, in step S31, during the distribution of a video including a character object of the broadcast user Ub, it is determined whether or not a co-starring application has been made from a user other than the broadcast user Ub. The co-starring application is made, for example, from the broadcast user Ua. The broadcast user Ua can make a co-starring application by selecting the co-starring application button 37b displayed on the broadcast user device 20a after receiving an invitation, as described above. The co-starring application may be made by selecting the co-starring application button 36. The co-starring application may be made before receiving an invitation, or may be made by a user who has not received an invitation. When a co-starring application is made before receiving an invitation or when a co-starring application is made by a user who has not received an invitation, input of a co-starring password may be requested, and the co-starring application may be made only when the correct co-starring password is input. When a co-starring application is made by the broadcast user Ua, the process proceeds to step S32. A co-starring application may also be made by one or more broadcast users other than the broadcast user Ua.

[0129] In step S32, guest users who will appear in the video of the distribution user Ub are selected from among the users who have applied to appear together. The guest users selected may be one or more. If an upper limit is set on the number of people who can appear together, guest users are selected until this upper limit is reached.

[0130] In step S32, if broadcast user Ua is selected as the guest user, the process proceeds to step S33. In step S33, animation of broadcast user Ua's character object 131 is generated based on the face motion data of broadcast user Ua. Then, a co-starring video is generated by adding animation of broadcast user Ua's character object 131 to the video being distributed (video including broadcast user Ub's character object 31). The process in step S33 is performed, for example, by the above-mentioned co-starring application processing unit 61e.

[0131] Next, the process proceeds to step S34. In step S34, the co-starring video generated in step S33 is distributed. This co-starring video is distributed to the viewing user device 10 and other viewing user devices and broadcasting user devices via the network 50. The co-starring video includes, for example, an animation of the character object 131 of the broadcasting user Ua and an animation of the character object 31 of the broadcasting user Ub, as shown in Figs. 9 and 10a to 10b.

[0132] Next, the process proceeds to step S35. In step S35, it is determined whether the co-starring end condition is satisfied. For example, when the character object 131 of the guest user, broadcast user Ua, is in a non-active state, when the guest user evaluation point becomes equal to or less than a predetermined threshold, when a co-starring end instruction is received from the host user, broadcast user Ub, when a co-starring end instruction is received from the guest user, broadcast user Ua, when a predetermined time or more has passed since the start of distribution of the co-starring video, or when a condition for ending the co-starring other than these is satisfied, it is determined that the co-starring end condition is satisfied. When the co-starring end condition is satisfied, the process proceeds to step S36.

[0133] In step S36, processing is performed to end the distribution of the co-starring video. For example, the character object 131 of the broadcast user Ua, who is a guest user, is removed from the co-starring video, thereby ending the co-starring between the broadcast user Ua and the broadcast user Ub. Even if the co-starring ends, the video may continue to be distributed. The video distributed after the co-starring ends does not include the character object 131 of the broadcast user Ua. The above-mentioned determination of the co-starring end condition and the co-starring end processing are performed, for example, by the co-starring end processing unit 61f.

[0134] Next, an example of the effect of the above embodiment will be described. According to the above embodiment, another broadcast user (for example, broadcast user Ua) who receives an invitation from broadcast user Ub can decide whether or not to apply for a co-starring session with broadcast user Ub based on the host user information of broadcast user Ub associated with the invitation. Therefore, the user who received the invitation can decide whether or not to apply for a co-starring session after understanding the broadcast user Ub who will be the host user. When processing a co-starring session based on an invitation, the viewing user may receive a large number of invitations from unknown broadcast users, making it difficult for the viewing user to determine which broadcast user to co-star with. In this way, simply using the invitation may hinder the use of the co-starring function. In the above embodiment, the host user information of the broadcast user is presented to other broadcast users in association with the invitation from the broadcast user, so the user who received the invitation can select which broadcast user to co-star with based on the host user information of the broadcast user.

[0135] According to the above embodiment, when a broadcast user Ub wishes to co-star with other users in a video that he / she broadcasts, he / she can encourage other broadcast users to request to co-star by sending an invitation including his / her host user information.

[0136] According to the above embodiment, it is possible to accept co-starring requests only from inviting users who have received an invitation. For example, the co-starring request buttons 36, 37b are displayed only on the broadcasting user device that has received the invitation. This makes it possible to reduce the processing load of co-starring requests, since co-starring requests from viewing users who have not received an invitation are not accepted. In particular, for popular broadcasting users, it is possible to prevent receiving an excessive number of co-starring requests by adjusting the number of inviting users to whom invitations are sent.

[0137] According to the above embodiment, the host user information includes information on the number of viewers who viewed the video of the broadcast user who sent the invitation (e.g., broadcast user Ub). This allows the user who received the invitation (e.g., broadcast user Ua) to decide whether or not to apply to co-star with broadcast user Ub based on the number of viewers of the video being broadcast by broadcast user Ub.

[0138] According to the above embodiment, the host user information includes information on the number of viewers who viewed the video of the broadcast user who sent the invitation (e.g., broadcast user Ub). This allows the user who received the invitation (e.g., broadcast user Ua) to decide whether or not to apply to co-star with broadcast user Ub based on the number of viewers of the video being broadcast by broadcast user Ub.

[0139] According to the above embodiment, the host user information includes user evaluation information of the broadcast user (e.g., broadcast user Ub) who sent the invitation. This allows the user who received the invitation (e.g., broadcast user Ua) to decide whether or not to apply to perform together with broadcast user Ub based on the evaluation of broadcast user Ub. According to the above embodiment, the host user information includes video evaluation value information of the broadcast user (e.g., broadcast user Ub) who sent the invitation. This allows the user who received the invitation (e.g., broadcast user Ua) to decide whether or not to apply to perform together with broadcast user Ub based on the evaluation of the video broadcast by broadcast user Ub.

[0140] According to the above embodiment, the host user information includes host user evaluation information. The host user evaluation information reflects positive or negative feedback from viewing users regarding the host user's behavior in the co-starring video. A broadcast user who has received an invitation can co-star with an excellent host user by applying to co-star when the host user evaluation information of the broadcast user who sent the invitation is a high value (i.e., when the broadcast user has a high evaluation as a host user).

[0141] In the video distribution system 1 according to the above embodiment, the broadcast users Ua and Ub can distribute videos including character objects that move according to their facial expressions using a broadcast user device 20 equipped with a camera such as a smartphone. In this way, in the video distribution system 1, the equipment for the broadcast users Ua and Ub to distribute videos is simplified, and a platform that is easy for the broadcast users Ua and Ub to participate in is realized.

[0142] In the processing procedures described in this specification, particularly in the processing procedures described using flow diagrams, it is possible to omit some of the steps that make up the processing procedures, to add steps that are not explicitly stated as steps that make up the processing procedures, and / or to change the order of the steps, and processing procedures in which such omissions, additions, or changes in order have been made are also included within the scope of the present invention as long as they do not deviate from the spirit of the present invention.

[0143] At least a part of the functions realized by the computer processor 61 may be realized by a computer processor other than the computer processor 61 of the video distribution system 1. At least a part of the functions realized by the computer processor 61 may be realized, for example, by the computer processor 21 of the broadcasting user device 20, or by a computer processor of the viewing user device 10. Specifically, some or all of the functions of the animation generation unit 61a and the video generation unit 61b may be executed in the broadcasting user device 20. For example, a video generated in the broadcasting user device 20 may be transmitted to the server device 60 and distributed from the server device 60 to the viewing user device 10.

[0144] When a broadcast user Ua who is watching a video including a character object 31 of broadcast user Ub makes a request to co-star with broadcast user Ub, the animation of the character object 131 of the broadcast user Ua who made the request to co-star may be generated by any of the server device 60, the broadcast user device 20a of the broadcast user Ua, the broadcast user device 20b of the broadcast user Ub, or the viewing user device 10. Furthermore, the generation of a co-starring video including the generated character object 131 of the broadcast user Ua and the broadcast video and character object 31 of the broadcast user Ub may be performed by any of the server device 60, the broadcast user device 20a of the broadcast user Ua, the broadcast user device 20b of the broadcast user Ub, or the viewing user device 10. The co-starring video may be generated by sharing among the server device 60, the broadcast user device 20a, the broadcast user device 20b, the viewing user device 10, and devices other than these. In one example, when animation of the character object 131 of broadcast user Ua is generated in the broadcast user device 20b of broadcast user Ub, facial motion data and voice data of broadcast user Ua are transmitted from the broadcast user device 20a of broadcast user Ua to the broadcast user device 20b of broadcast user Ub. When a gift object is included in the co-starring video, data for displaying the gift object may be transmitted from the broadcast user device 20a or the server device 60 to the broadcast user device 20b. In the broadcast user device 20b, animation of the character object 131 is generated by applying the facial motion data and voice data of broadcast user Ua received from the broadcast user device 20a to model data for broadcast user Ua. This model data for broadcast user Ua may be transmitted from the server device 60 to the broadcast user device 20a. In another example, when animation of the character object 131 of the broadcast user Ua is generated in the viewing user device 10, facial motion data and voice data of the broadcast user Ua are transmitted from the broadcast user device 20a of the broadcast user Ua to the viewing user device 10, and facial motion data and voice data of the broadcast user Ub are transmitted from the broadcast user device 20b of the broadcast user Ub to the viewing user device 10.In the viewing user device 10, animation of the character object 131 may be generated by applying the facial motion data and voice data of the broadcast user Ua received from the broadcast user device 20a to the model data for the broadcast user Ua, and animation of the character object 31 may be generated by applying the facial motion data and voice data of the broadcast user Ub received from the broadcast user device 20b to the model data for the broadcast user Ub. This model data for the broadcast user Ua and the model data for the broadcast user Ub may be transmitted from the server device 60 to the viewing user device 10. When a gift object is included in the co-starring video, data for displaying the gift object may be transmitted from the broadcast user device 20a, the broadcast user device 20b, or the server device 60 to the viewing user device 10. In this way, animation of the broadcast user's character object and / or co-starring video including animation of the character object may be generated by any device included in the video distribution system 1. Animation of the character object may be generated by a device not explicitly shown in FIG. 1. To the device generating the animation of the character object, facial motion data and voice data of broadcast user Ua are transmitted from broadcast user device 20a of broadcast user Ua, and facial motion data and voice data of broadcast user Ub are transmitted from broadcast user device 20b of broadcast user Ub. Body motion may be transmitted in addition to facial motion.

[0145] A co-starring video may include character objects of three or more broadcast users. In other words, three or more broadcast users may virtually appear together in a video using their respective character objects. An upper limit may be set for the number of broadcast users who can appear together. When the upper limit is reached in the number of broadcast users who can appear together, a process may be performed in which the co-starring request button 36 is not displayed in the image of the video the broadcast user is watching (e.g., image 40a), or a process may be performed in which the co-starring request button 36 is not selectable in the image of the video the broadcast user is watching (disable process).

[0146] The inventions described in the claims of the original application of this application are set forth below. [1] one or more computer processors; The one or more computer processors execute the computer readable instructions to: Distributing a video including an animation of a character object generated based on a movement of the first user; sending an invitation associated with host user information about the first user to a second user of the plurality of viewing users who are viewing the video; displaying, on a user device of the second user that has received the invitation, a character string indicating that the invitation has been received from the first user, the host user information regarding the first user, and a first co-starring application button for transmitting a co-starring application to request a co-starring with the first user; generating a co-starring video in which the first user and the second user appear together in response to receiving the co-starring application from the second user who has received the invitation to apply to appear together with the first user; Reproducing the co-starring video on a user device of each of one or more viewing users; Video distribution system. [2] the character string, the host user information, and the first co-starring application button are arranged in a window displayed on the user device of the second user; [1] A video distribution system according to the present invention. [3] The one or more computer processors display, after the window is no longer displayed, a second co-starring request button for sending the co-starring request on the image including the video. [2] A video distribution system according to the present invention. [4] The host user information includes user evaluation information indicating an evaluation of the first user. A video distribution system according to any one of claims [1] to [3]. [5] The host user information includes viewer number information indicating the number of users viewing the video. A video distribution system according to any one of claims [1] to [4]. [6] The host user information includes host user evaluation information indicating an evaluation of the first user in the co-starring video. A video distribution system according to any one of claims [1] to [5]. [7] The host user information includes video evaluation information indicating an evaluation of the video. A video distribution system according to any one of claims [1] to [6]. [8] The host user information includes first benefit information indicating a first benefit to be granted to the second user when the second user makes the co-starring application. A video distribution system according to any one of claims [1] to [7]. [9] The first benefit changes depending on an evaluation of the co-starring video. [8] A video distribution system according to the present invention.

[10] The first benefit changes depending on an evaluation of the second user during distribution of the co-starring video. [8] or [9]. A video distribution system according to the present invention.

[11] The first benefit is an object that the second user can use in the co-starring video. A video distribution system according to any one of [8] to

[10] .

[12] The host user information includes second benefit information indicating a second benefit to be granted to the second user when the co-starring video in which the second user and the first user appear together is generated. A video distribution system according to any one of claims [1] to

[11] .

[13] The second benefit changes depending on an evaluation of the co-starring video.

[12] A video distribution system according to the present invention.

[14] The second benefit changes depending on an evaluation of the second user during distribution of the co-starring video.

[12] or

[13] . A video distribution system according to the present invention.

[15] The second benefit is an object that the second user can use in the co-starring video. A video distribution system according to any one of

[12] to

[14] .

[16] The co-starring video is a character co-starring video including a first character object generated based on a movement of the first user and a second character object generated based on a movement of the second user. A video distribution system according to any one of claims [1] to

[15] .

[17] The co-starring video is a voice co-starring video including a first character object generated based on a movement of the first user and a voice of the second user. A video distribution system according to any one of claims [1] to

[16] .

[18] the co-starring video is a character co-starring video including a first character object generated based on a movement of the first user and a second character object generated based on a movement of the second user, or a voice co-starring video including a first character object generated based on the movement of the first user and a voice of the second user, The character co-starring video and the voice co-starring video can be switched alternately. A video distribution system according to any one of claims [1] to

[17] .

[19] 1. A method for streaming video that is executed by one or more computer processors executing computer-readable instructions, comprising: distributing a video including an animation of a character object generated based on a movement of the first user; sending an invitation associated with host user information about the first user to a second user of the plurality of viewing users who are viewing the video; displaying, on a user device of the second user that has received the invitation, a character string indicating that the invitation has been received from the first user, the host user information regarding the first user, and a first co-starring application button for transmitting the co-starring application to request a co-starring with the first user; generating a co-starring video in which the first user and the second user appear together in response to receiving a co-starring application from the second user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on a user device of each of one or more viewing users; A video distribution method comprising:

[20] one or more computer processors, distributing a video including an animation of a character object generated based on a movement of the first user; sending an invitation associated with host user information about the first user to a second user of the plurality of viewing users who are viewing the video; displaying, on a user device of the second user that has received the invitation, a character string indicating that the invitation has been received from the first user, the host user information regarding the first user, and a first co-starring application button for transmitting the co-starring application to request a co-starring with the first user; generating a co-starring video in which the first user and the second user appear together in response to receiving a co-starring application from the second user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on a user device of each of one or more viewing users; A video distribution program that executes the following. [Explanation of symbols]

[0147] 1. Video distribution system 10 Viewing User Device 20a, 20b Distribution user device 21a1, 21b1 Facial motion data generation unit 21a2 Invitation presentation section 21a3 Joint Application Section 21b2 Invitation request section 60 Server equipment 61a Animation Generation Section 61b Video Generation Unit 61c Video Distribution Department 61d Invitation Processing Unit 61e Joint Applicant Processing Unit 61f Collaboration end processing section 63 Storage

Claims

1. one or more computer processors; The one or more computer processors execute the computer readable instructions to: Distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; Selecting a destination user to receive the invitation from among a plurality of viewing users who are viewing the video based on the invitation request; Sending an invitation to the destination user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to apply to appear together with the first user; The co-starring video is reproduced on a user device of each of one or more viewing users; The invitation request includes a number of users who can perform together with the first user. Video distribution system.

2. The destination user is selected from the plurality of viewing users such that the number of the destination users is equal to the number indicated by the number of co-viewers. The video distribution system according to claim 1 .

3. A computer comprising one or more computer processors, The one or more computer processors execute the computer readable instructions to: Distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; Selecting a destination user to receive the invitation from among a plurality of viewing users who are viewing the video based on the invitation request; Sending an invitation to the destination user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to apply to appear together with the first user; The co-starring video is reproduced on a user device of each of one or more viewing users; The invitation request does not include information specifying the destination user. Video distribution system.

4. the invitation request includes a password set by the first user; The video distribution system according to any one of claims 1 to 3.

5. The invitation request includes a user ID that identifies the first user. The video distribution system according to any one of claims 1 to 4.

6. host user information regarding the first user is transmitted in association with the invitation; The video distribution system according to any one of claims 1 to 5.

7. The co-starring video is a character co-starring video including a first character object generated based on a movement of the first user and a second character object generated based on a movement of the destination user. The video distribution system according to any one of claims 1 to 6.

8. The co-starring video is a voice co-starring video including a first character object generated based on a movement of the first user and a voice of the destination user. The video distribution system according to any one of claims 1 to 7.

9. the co-starring video is a character co-starring video including a first character object generated based on a movement of the first user and a second character object generated based on a movement of the destination user, or a voice co-starring video including a first character object generated based on the movement of the first user and a voice of the destination user, The character co-starring video and the voice co-starring video can be switched alternately. The video distribution system according to any one of claims 1 to 8.

10. 1. A method for streaming video that is executed by one or more computer processors executing computer readable instructions, comprising: distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; selecting a destination user to receive the invitation from among a plurality of viewing users who view the video based on the invitation request; sending an invitation to the target user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on each user device of one or more viewing users; Equipped with The invitation request includes a number of users who can perform together with the first user. Video distribution methods.

11. A video distribution method performed by one or more computer processors executing computer-readable instructions, comprising: distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; selecting a destination user to receive the invitation from among a plurality of viewing users who view the video based on the invitation request; sending an invitation to the target user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on each user device of one or more viewing users; Equipped with The invitation request does not include information specifying the destination user. Video distribution methods.

12. one or more computer processors, distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; selecting a destination user to receive the invitation from among a plurality of viewing users who view the video based on the invitation request; sending an invitation to the target user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on each user device of one or more viewing users; Run the command, The invitation request includes a number of users who can perform together with the first user. Video streaming program.

13. In one or more computer processors: distributing a video including an animation of a character object generated based on a movement of the first user; generating an invitation request based on settings defined by the first user; selecting a destination user to receive the invitation from among a plurality of viewing users who view the video based on the invitation request; sending an invitation to the target user; generating a co-starring video in which the first user and the destination user appear together in response to receiving a co-starring application from the destination user who has received the invitation to request a co-starring with the first user; A step of playing the co-starring video on each user device of one or more viewing users; Run the command, The invitation request does not include information specifying the destination user. Video distribution methods.

Images