JP2011109250A - Video display device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video display device that facilitates reproducing operation of contents via network after contents that are instructed to be reproduced by other devices are completed, and to provide a video display method. <P>SOLUTION: The video display device includes: a receiving means for receiving URI information showing one of one or more contents that are released by a server from other devices; a reproducing means for receiving the contents from the server based on the URI information that is received by the receiving means to reproduce the contents; and a display control means for displaying list information of the contents released by the server after the reproduction of the contents received from the server is completed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display technique for displaying content information acquired via a network.

  As is well known, in recent years, home digital AV (Audio Visual) devices, digital televisions, hard disk recorders, and the like are connected to each other via a home network. These devices operate in cooperation with each other. As a specification for interconnecting these devices, UPnP (Universal Plug and Play) is often used.

  In UPnP, a device that models a device that provides a service related to a service indicating a function provided by the device and a control point that uses the service are defined. Media devices, media renderers, and the like are defined as devices for AV equipment.

  In UPnP AV Architecture, a specification is defined in which a control point controls a media server and a media renderer, and a content published by the media server is played back by the media renderer. The control point acquires information on the content published by the media server, and instructs the media renderer to play back the selected content. The media renderer acquires content data from the media server based on the instruction, and performs playback processing.

  In Patent Document 1, in a television receiver and a mobile phone that communicate according to the UPnP standard, when the television receiver receives a data request command from the mobile phone, it transmits data corresponding to the command from the container to the mobile phone. The structure to be described is described.

JP 2008-31159 A

  However, Patent Document 1 only describes a configuration that enables information to be acquired between devices that communicate according to the UPnP standard. Here, in UPnP AV Architecture, the control point acquires information on the title of the content published by the media server, and when the content to be played back is determined by the media renderer, notifies the media renderer of only the information about the content. For this reason, the media renderer cannot know how the title of the content instructed to be played has been published in the media server. Therefore, on the operation screen of the media renderer, it is not possible to perform operations such as reproducing the content of another title published on the media server together with the title of the reproduced content.

  Accordingly, an object of the present invention is to provide a video display device and a video display method capable of simplifying a content reproduction operation via a network after the reproduction of the content instructed to be reproduced from another device is completed. And

  The video display apparatus according to the present invention is based on the URI information indicating one content among the one or more contents published by the server from another apparatus, and the URI information received by the receiving means. Playback means for receiving and playing back the content from the server, and display control means for displaying the list information of the content published by the server after the playback of the content received from the server is completed.

  According to the above-described invention, it is possible to provide a video display device and a video display method capable of simplifying a content playback operation via a network after the playback of content instructed to be played by another device is completed. it can.

The figure which shows the video display apparatus which concerns on embodiment, and the device connected to this. The figure which shows the object tree which concerns on embodiment. The block diagram which shows the outline of the video display apparatus which concerns on embodiment. The figure which shows the device list which the video display apparatus which concerns on embodiment has. FIG. 5 is a sequence diagram for explaining a content reproduction operation instruction by the mobile phone to the video display apparatus according to the embodiment. The flowchart explaining the container search in the video display apparatus which concerns on embodiment. The figure which shows an example of the object list displayed with the video display apparatus which concerns on embodiment.

  Hereinafter, the present embodiment will be described with reference to the drawings. FIG. 1 is a diagram illustrating a video display apparatus according to the present embodiment and devices connected thereto. In the present embodiment, a digital television 1 is described as an example of a video display device, a hard disk recorder 2, a PC (Personal computer) 3 as an example of a server for recording content, and a mobile phone 4 as an example of a mobile terminal. It is not limited to this. The digital television 1, the hard disk recorder 2, the PC 3, and the mobile phone 4 are connected to each other via a network 5.

  In the present embodiment, the digital television 1 operates as a control point for the media renderer and the media server. The digital television 1 reproduces the content acquired from the media server. The hard disk recorder 2 records broadcast wave content on an internal hard disk drive or the like. The hard disk recorder 2 operates as a media server that publishes the title of the recorded content to other devices connected to the network 5. Similarly to the hard disk recorder 2, the PC 3 operates as a media server. The mobile phone 4 serves as a control point for controlling the media server and the media renderer.

  Here, the IP (Internet protocol) address of the digital television 1 is 192.168.0.20, the IP address of the hard disk recorder 2 is 192.168.0.10, the IP address of the PC is 192.168.0.11; It is assumed that the IP address of the mobile phone is 192.168.0.1.

  Next, operations of the control point, media server, and media renderer defined in UPnP AV Architecture will be described. The control point can recognize the presence and type of devices connected via the network 5 using a protocol called SSDP (Simple service discovery protocol). Further, the control point recognizes details of the service operating on the device by acquiring an XML (Extensible Markup Language) file called a device description or a service description from the device.

  The media server publishes content information such as recorded video (moving image) and image (photo) so that the control point can acquire the content recorded on the media server. The media server publishes recorded content information using a content directory service (hereinafter referred to as CDS). Objects published in CDS are called containers and items. The media server manages the content recorded on the media server using CDS as an object tree using containers and items.

  An item is an object representing the title of one content. FIG. 2 is a diagram illustrating an example of an object tree. A container represents a collection of objects and includes multiple contents or multiple items. Furthermore, a container can also contain a mixture of items and containers. Objects to be disclosed using CDS are configured in a tree form from the highest level container (root container). In the present embodiment, the hard disk recorder 2 and the PC 3 which are content servers each manage an object tree as shown in FIG. Each container and item is given an identifier called an object ID that is unique within the CDS.

  The control point can acquire the information of the object that the media server discloses in the CDS by the Browse action. The Browse action calls information on the object to be acquired by specifying the object ID of the container or item. The control point can use HTTP (Hypertext transfer protocol) or RTP (Real-time transport protocol) to acquire content from the media server. In the present embodiment, it is assumed that content transmission between the control point and the media server is performed by HTTP.

  In UPnP AV Architecture, a Search action is also defined in addition to the Browse action as a method for acquiring object information disclosed by CDS. In the Search action, the media server returns information on the object that satisfies the condition specified by the control point to the control point. However, unlike the Browse action, the Search action is optional. Therefore, the control point cannot execute the Search action on all media servers. The control point can confirm whether or not the Search action can be executed by acquiring a service description from the media server.

  The media renderer receives a content playback processing instruction from the control point, and plays back playback target (display target) content among the content published by the media server. The control point uses an AV transport service (referred to as AVT) of the media renderer in order to control the playback processing of the content to be played by the media renderer. The media renderer AVT provides several actions for controlling the playback processing of the content to be played.

  The SetAVTransportURI action in the AVT sets URI (Uniform resource identifier) information in which the data of the content to be played back is disclosed in the media renderer. The SetAVTransportURI action can also use, as an argument, attribute information such as the object ID of the item corresponding to the reproduction target content, the parent ID that is the object ID of the container including the item corresponding to the reproduction target content, the title name, and the URI information. The control point can arbitrarily set which attribute information is set in the media renderer as an argument. The control point can also set no attribute information in the media renderer.

  The Play action in AVT sets the start of playback of the playback target content in the media renderer. In addition, the AVT provides a Stop action for setting the playback stop of the playback target content in the media renderer, a Pause action for setting the pause of the playback target content in the media renderer, and the like.

  Next, the configuration of the video display device according to the present embodiment will be described. FIG. 3 is a block diagram showing the configuration of the digital tile television 1. The digital television 1 includes a tuner 101, a decoder 102, an HDMI (High-definition multimedia interface) terminal 103, a D terminal 104, a composite terminal 105, an AV switch 106, a control module 107, a video processing module 108, an audio processing module 109, and a monitor 110. , A speaker 111, an OSD (On Screen Display) module 112, a remote control receiving module 113, a memory 114, and a network terminal 115.

  The tuner 101 selects and demodulates a signal having a predetermined frequency from the broadcast signal received by the antenna 10. The decoder 102 decodes the signal demodulated by the tuner 101. The HDMI terminal 103 is an external terminal used for transmitting a video signal by HDMI connection. The D terminal 104 is an external terminal used for video signal transmission. The composite terminal 105 is an external terminal used for transmitting a composite video signal. The AV switch 106 receives a signal decoded by the decoder 102 and a signal input via the HDMI terminal 103, the D terminal 104, and the composite terminal 105. The AV switch 106 outputs a desired video signal to the video processing module 108 and an audio signal to the audio processing module 109 in accordance with an instruction from the control module 107.

  The video processing module 108 processes the video signal input from the AV switch 106 for display on the monitor 110. The control module 107 controls the display of the video signal processed by the video processing module 108 on the monitor 110.

  The audio processing module 109 performs audio processing to output from the speaker 111 the audio signal input from the AV switch. The control module 107 controls to output the audio signal processed by the audio processing module 109 to the speaker 111. The OSD module 112 generates graphic data to be displayed on the screen of the monitor 110 in accordance with an instruction from the control module 107. The OSD module 112 outputs graphic data to the video processing module 108. The OSD module 112 generates, for example, a menu screen as graphic data. The remote control receiving module 113 receives the infrared signal transmitted from the remote control 20, extracts the remote control signal, and outputs it to the control module 107. The control module 113 controls each unit based on reception of the remote control signal. The memory 114 records various information.

  The network terminal 115 transmits / receives UPnP messages and content data to / from devices connected to the network 5. The network terminal 115 is connected to the control module 107. The control module 107 processes the UPnP message received via the network terminal 115 and transmits the UPnP message to the network 5 via the network terminal 115. When receiving the content data from the media server via the network 5, the control module 107 processes the HTTP header and outputs it to the AV switch 106. The control module 107 temporarily records content data in a buffer in the control module 107 and outputs it to the AV switch 106. This is because jitter occurs when the control module 107 receives content data via the network 5.

The digital television 1 also operates as a control point for the media server (hard disk recorder 2 and PC 3). The digital television 1 collects SSDP, device description, and service description from the media server, and records a device list in which information about the media server is recorded in the memory 115. FIG. 4 is a diagram showing an example of a device list in which information related to the media server is recorded. The device list records the name, IP address, and UDN of a device called “Friendly Name” for each media server. The Friendly Name is a character string described in the device description and given to the device so that the user can easily identify the device. UDN is a value given to a device in order to uniquely identify the device. In addition to the information shown in FIG. 4, the device list may record information necessary for controlling the media server by the control point. In FIG.
A device whose “Friendly Name” is “recorder” indicates the hard disk recorder 2. The friendly name of the pc device is PC3.

  Next, an operation in which the digital television 1 operates as a control point for the media server and the digital television 1 reproduces content in the media server will be described. First, the user uses the remote controller 20 to set the media server list that is connected to the digital television 1 via the network 5 to be displayed on the monitor 110 based on the device list shown in FIG. The control module 107 controls to display the media server list on the monitor 110. The user selects a desired media server (here, either the hard disk drive 2 or the PC 3) on the screen of the media server list displayed on the monitor 110.

  The control module 107 sends a CDS Browse action request message from the network terminal 115 to the hard disk recorder 2 to the topmost container of the object tree managed by the selected hard disk recorder 2 as the media server.

  When receiving the Browse action response from the hard disk recorder 2, the control module 107 analyzes the content of the message and extracts the attribute information of the object included in the uppermost container of the hard disk recorder 2. The control module 107 controls the OSD module 112 to display a list of objects included in the uppermost container on the monitor 110. The object list displays items included in the highest container and the titles of objects corresponding to the containers.

  When the user selects an object corresponding to the container using the remote controller 20, the control module 107 calls the CDS Browse action again, and controls to display the object list included in the selected container on the monitor 110.

  When the user selects an object corresponding to the item using the remote controller 20, the control module 107 transmits an HTTP GET request to the URI of the selected item.

  When the control module 107 receives an HTTP response that is a response to the HTTP GET request via the network terminal 115, the control module 107 performs video processing on the data portion of the content to be played corresponding to the selected item via the AV switch 106. The data is output to the module 108 and the audio processing module 109. The control module 107 controls to reproduce and display the reproduction target content corresponding to the selected item on the monitor 110.

  For example, when the user sets playback stop using the remote controller 20 during playback of the playback target content on the digital television 1, the control module 107 stops the reception processing of the playback target content via the network terminal 115, and monitors The reproduction of the reproduction target content displayed at 110 is also stopped. In addition, when the control module 107 completes reception of all data regarding the reproduction target content corresponding to the item selected by the user in the HTTP GET response, the reproduction target content has been reproduced to the end. Therefore, the control module 107 controls to stop the reproduction of the reproduction target content displayed on the monitor 110.

  When the reproduction of the reproduction target content is controlled to be stopped for any of the reasons described above, the control module 107 performs control so that the object list when the reproduction target content whose reproduction is controlled to be stopped is selected is displayed on the monitor 110 again. Therefore, the user can easily set the playback start of the content corresponding to the object included in the same container as the playback target content whose playback is currently controlled to be stopped.

  When redisplaying the object list on the monitor 110, the control module 107 may retain all the attribute information used when the object list is first displayed on the monitor 110, and use this. Alternatively, the control module 107 holds only the information about the media server that records the content to be played and the object ID (parent ID) of the container, and when redisplaying the object list on the monitor 110, the control module 107 uses the CDS Browse action again. You may acquire the attribute information of an object.

  Next, an operation in which the mobile phone 4 operates as a control point for the media server, and the content recorded by the hard disk recorder 2 operating as the media server is played back by the digital television 1 operating as a media renderer will be described. FIG. 5 is a sequence diagram in this case.

  First, the user selects a desired media server from a media server list displayed on a display (not shown) based on the device list shown in FIG. 4 in which the media servers connected to the mobile phone 4 via the network 5 are recorded. Select. In addition, the user selects a media renderer that reproduces content published by the media server on the mobile phone 4. Here, a case where the user selects the hard disk recorder 2 as the media server and the digital television 1 as the media renderer will be described.

  The portable terminal 4 sends a CDS Browse action request to the hard disk recorder 2 from the network terminal 115 to the topmost container of the object tree recorded in the hard disk recorder 2.

  The hard disk recorder 2 has attribute information such as the title name and genre information of the content contained in the top container of the object tree, the object ID that is an identifier in the CDS, and the object ID (parent ID) of the top container. Information such as a URI used for data transfer of content is transmitted to the mobile phone 4 as a CDS Browse action response. As the cellular phone 4 selects a lower container from the highest container in the object tree, the mobile phone 4 calls the Browse action request to the hard disk recorder 2 a plurality of times as necessary, and the contents of the contents published by the hard disk recorder 2 are displayed. Collect information.

  The mobile phone 4 displays an object list included in an arbitrary container on the screen. The user selects an object corresponding to the reproduction target content to be reproduced on the digital television 1 using the mobile phone 4.

  When the mobile phone 4 determines an object corresponding to the content to be played back, the mobile phone 4 notifies the digital television 1 of URI information and attribute information used for playback processing on the digital television 1 out of information acquired by the Browse action response regarding this object. . The mobile phone 4 calls an AVT SetAVTransportURI action request of the ATV of the digital television 1 to notify the digital television 1 of URI information and attribute information. At this time, the control module 107 and the network terminal 115 function as a receiving unit for URI information and attribute information. When the SetAVTransportURI action is called, the digital television 1 records URI information and attribute information in the memory 114. Thereafter, the digital television 1 transmits an AVT SetAVTransportURI response to the mobile phone 4.

  Next, the mobile phone 4 transmits an AVT Play request to the digital television 1 based on a request for content reproduction processing on the digital television 1 by the user. The digital television 1 calls an AVT Play action and transmits an AVT Play response to the mobile phone 4. The digital television 1 transmits an HTTP GET request to the hard disk recorder 2 based on the URI of the object corresponding to the reproduction target content recorded in the hard disk recorder 2 notified by the SetAVTransportURI action. The digital television 1 acquires the data of the content to be played back by the HTTP response received from the hard disk recorder 2. The control module 107 functions as a means for acquiring reproduction target content data. The digital television 1 transmits an HTTP GET request to the hard disk recorder 2 at the time when the SetAVTransportURI action is called, and shortens the time from when the AVT Play action is called until the start of the playback processing of the content to be played back. Also good.

  The control module 107 outputs the data portion of the reproduction target content acquired from the hard disk recorder 2 to the video processing module 108 and the audio processing module 109 via the AV switch 106 and displays the reproduction target content on the monitor 110. The control module 107 and the video processing module 108 function as content data display control means.

  In parallel with the playback processing of the playback target content, the control module 107 searches for information on the container to which the item having the URI specified for the playback target content being played back belongs. Here, a container to which an item corresponding to the reproduction target content belongs is referred to as a search target container. The control module 107 functions as a container search unit. The control module 107 searches the search target container after the AVT SetAVTransportURI action is called, or after the AVT Play action is called.

  The control module 107 stops the reproduction processing of the reproduction target content when reception of all the data regarding the reproduction target content is completed by the HTTP GET response or when the AVT Stop action is called.

  After stopping the reproduction process of the reproduction target content, the control module 107 starts display control on the monitor 110 of the object list belonging to the search target container. Specifically, when the acquisition of the search target container is completed, the control module 107 calls the CDS Browse action to acquire information on objects belonging to the search target container. The control module 107 controls the OSD module 112 so that the object list belonging to the search target container is displayed on the monitor 110. The control module 107 and the OSD module 112 function as display control means for the object list of the search target container.

  Therefore, the control module 107 can control to display the object list of the search target container on the monitor 110 when the playback process of the playback target content is stopped. The user can easily set the reproduction start of the content corresponding to another object by directly operating the digital television 1 in the same manner as operating with the mobile phone 4 which is a control point. That is, in this embodiment, the control point is transferred from the mobile phone 4 to the digital television 1.

  Next, the search of the search target container and the object list display of the search target container will be described. FIG. 6 is a flowchart for explaining the operation of the digital television 1 in this case. The control module 107 searches the search target container based on the URI information and attribute information of the content to be played back notified from the mobile phone 4 by the AVT SetAVTransportURI action.

  First, the control module 107 extracts the host part from the URI information of the content to be played (step S101). The control module 107 searches for a device with a matching IP address from the device list recorded in the memory 114 (step S102). If there is no device with the matching IP address (step S102, NO), the control module 107 determines that the search of the search target container has failed because the URI information notified by the SetAVTransportURI of the AVT is not from the media server ( Step S113).

  If there is a device with a matching IP address (step S102, YES), the control module 107 continues to search for a search target container for that device. The control module 107 determines whether or not the parent ID is included in the attribute information of the reproduction target content (step S103). If the parent ID is included (YES in step S103), a CDS Browse action is executed for the container indicated by the parent ID (step S104).

  In step S104, the control module 107 responds to the URI (reproduction target content) specified by the SetAVTransportURI among the objects (objects constituting the container indicated by the parent ID) that can be acquired from the media server as a response to the CDS Browse action. It is determined whether or not there is an object having a URI that matches the URI of the object (step S105).

  If there is an object having a URI that matches the URI specified by the SetAVTransportURI among the objects that can be acquired in response to the Browse action (step S105, YES), the control module 107 sets the parent ID as the object ID of the search target container. And decide. The control module 107 determines that the search target container has been successfully searched by determining the object ID of the search target container (step S106).

  Next, the control module 107 controls to display the object list of the search target container on the monitor 110 (step S107). FIG. 7 is a screen view showing an object list of search target containers. At the top of the screen displayed on the monitor 110, the name of the currently displayed search target container, the number of objects included in the search target container, and the object number from which the object currently displayed on the screen starts A number indicating whether or not it is displayed. In the object list of the search target container, the name of the container is “My folder”, the number of objects is 36, and the objects currently displayed on the screen are the five objects from the 10th object in the container. is doing.

  The marks displayed at the left and right positions of the display screen shown in FIG. 7 are instruction marks for switching to and displaying the objects in the order before and after the object currently displayed on the screen. When the user uses the remote controller 20 to select the left / right direction key, the control module 107 controls to switch and display the object to be displayed on the display screen. The display method of the object list of the search target container and the switching operation of the display screen are not limited to this.

  Information about five objects is displayed on the object list display screen of the search target container. In each object column, the name of the object, the date and time of creation, and the playback time are displayed. For example, the top object on the display screen indicates that the name of the object is documentary, the date and time of creation is September 27, 13:00, and the playback time is 30 minutes. The information displayed in the object column shown in FIG. 7 is an example. In addition to this, information such as the genre of the object may be displayed. The creation date and time may not be displayed in the object column.

  In FIG. 6, when the parent ID is not included in the attribute information of the reproduction target content (step S103, NO), the control module 107 determines whether the attribute ID of the reproduction target content includes the object ID (step S108). . Similarly, when there is no object having a URI that matches the URI specified by the SetAVTransportURI among the objects that can be acquired in response to the Browse action (step S105, NO), the control module 107 displays the attribute information of the playback target content It is determined whether or not the object ID is included in (step S108).

  When the object ID is included in the attribute information (step S108, YES), the control module 107 executes a CDS Browse action on the item indicated by the object ID (step S109). The control module 107 determines the parent ID acquired from the media server as a response to the CDS Browse action as the object ID of the search target container. The control module 107 determines that the search target container has been successfully searched by determining the object ID of the search target container (step S106).

  If the object information is not included in the attribute information (step S108, NO), the control module 107 checks whether the search action for the URI is supported by CDS in the media server based on the service description. (Step S110).

  When the search action is supported by the CDS in the media server (step S110, YES), the control module 107 executes the search action on the media server in order to search the URI specified by the SetAVTransportURI (step S111). ). The control module 107 determines whether or not the URI specified by the SetAVTransportURI has been retrieved by the Search action (step S112).

  When the Search action is successful (step S112, YES), the control module 107 sets the parent ID in the response of the Search action as the object ID of the container. The control module 107 determines the parent ID acquired from the media server as a response to the search action as the object ID of the search target container. The control module 107 determines that the search target container has been successfully searched by determining the object ID of the search target container (step S106). When the Search action has failed (step S112, NO), the control module 107 determines that the search of the search target container has failed (step S113).

  When the search action is not supported by the CDS in the media server (step S110, NO), the control module 107 recursively browses sequentially from the root container until an item having a URI that matches the URI specified by the SetAVTransportURI is found. An action is executed (step S114). The control module 107 determines whether an item having a URI that matches the URI specified by the SetAVTransportURI has been found (step S115).

  When an item having a URI that matches the URI specified by SetAVTransportURI is found (YES in step S115), the control module 107 determines the parent ID included in the attribute information of the item as the object ID of the container. The control module 107 determines that the search of the search target container is successful by determining the object ID of the search target container (step S106). If an item having a URI that matches the URI specified by the SetAVTransportURI is not found (step S115, NO), the module 107 determines that the search of the search target container has failed (step S113).

  According to the present embodiment, the media renderer instructed to perform the playback process from the control point has the object list included in the search target container that exists in the media server and to which the item corresponding to the playback target content belongs after the stop of the playback process. It can be displayed on the monitor 110. Therefore, the user can view contents corresponding to other objects included in the search target container by directly operating the media renderer in addition to operating from the control point.

  In the present embodiment, the user selects the next playback target content from the object list of the search target container after the playback processing of the playback target content is stopped, but the media renderer performs other operations in order according to the object ID. The content may be automatically reproduced. In the present embodiment, the case where the content is a moving image has been described. However, the present invention can also be applied to an image file such as JPEG (Joint photographic experts group). For example, the media renderer may display a slide show by playing other image files at regular intervals in order according to the object IDs attached to the items included in the object list of the search target container. .

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by variously modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements according to different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1 ... Digital television, 2 ... Hard disk recorder, 3 ... PC, 4 ... Mobile phone, 5 ... Network, 107 ... Control module, 108 ... Video processing module 108, 110 ... Monitor, 112 ... OSD module, 114 ... Memory, 115 ... Network terminal.

Claims (8)

Receiving means for receiving, from another device, URI information indicating one of the one or more contents published by the server;
Playback means for receiving and playing back content from the server based on the URI information received by the receiving means;
Display control means for displaying the list information of the content published by the server after the reproduction of the content received from the server is completed;
A video display device comprising: The server groups and publishes the one or more contents,
2. The video display apparatus according to claim 1, wherein the list information displayed by the display control means is list information of contents included in a group including contents received from the server.   2. The video display device according to claim 1, further comprising search means for collating the URI information and the IP address information of the server to identify the server having the received content.   2. The video display apparatus according to claim 1, wherein the receiving unit receives URI information indicating one content among the one or more contents published by the server and attribute information of the content. The server groups and publishes the one or more contents,
The display control means, based on information specifying a group included in the attribute information, displays the list information of the content included in the group when the received content exists in the group. The video display device according to claim 4. The server groups and publishes the one or more contents,
4. The display control means, based on the URI information, when the received content exists on the server, displays the list information of the content included in the group including the content. The video display device described.   The video display apparatus according to claim 1, wherein the display control unit outputs the list information after stopping the reproduction of the received content. Receiving URI information indicating one of the one or more contents published by the server from another device;
Receiving and playing back content from the server based on the received URI information;
After the reproduction of the content received from the server, the list information of the content published by the server is displayed.
A video display method characterized by the above.

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