WO2011048625A1 - コンテンツ配信装置およびシステム - Google Patents
コンテンツ配信装置およびシステム Download PDFInfo
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- WO2011048625A1 WO2011048625A1 PCT/JP2009/005475 JP2009005475W WO2011048625A1 WO 2011048625 A1 WO2011048625 A1 WO 2011048625A1 JP 2009005475 W JP2009005475 W JP 2009005475W WO 2011048625 A1 WO2011048625 A1 WO 2011048625A1
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- 238000004891 communication Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 230000006870 function Effects 0.000 description 35
- 238000010586 diagram Methods 0.000 description 22
- 238000012545 processing Methods 0.000 description 16
- 238000005315 distribution function Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 1
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- 230000007480 spreading Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/27—Server based end-user applications
- H04N21/278—Content descriptor database or directory service for end-user access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/812—Monomedia components thereof involving advertisement data
Definitions
- the present invention relates to content distribution, particularly distribution of moving image content.
- a technology for viewing content stored in a device connected to a home network on a player device such as a television is spreading.
- a technique such as Patent Document 1.
- Another popular industry standard is DLNA ⁇ ⁇ Guideline (DLNA).
- DLNA DLNA
- a player requests a content list from a device in the home network, the device returns the content list to the player as a directory structure data (called a content directory), the player selects content from the content directory, Obtain and play from the device.
- DLNA-compliant player devices are becoming increasingly popular for television.
- DLNA-compliant players are based on the assumption that content stored on a storage device (such as a network storage device or video recorder device) in the home network is viewed, and content that is outside the home network such as the Internet is acquired and viewed. I can't do it.
- video sites on the Internet have gained popularity, and there is a need to view videos on video sites on the Internet on TV.
- the problem to be solved by the present invention is to provide means for enabling browsing of contents on the Internet without installing new software on a player device capable of acquiring and browsing contents on a home network.
- a mediation program in a gateway device that mediates between a player connected to a local LAN such as a home network and the Internet.
- the mediation program acquires a video list from a video site, and video list data Is converted into a content directory and transmitted to the player.
- the player has means for displaying the content directory received from the mediation program and allowing the user to select the content directory, and transmits an acquisition request for the selected content to the gateway device.
- the intermediary program in the gateway device sends a content acquisition request to a transcoding server on the Internet or a local network, and the transcoding server acquires video data from the video site based on the received content acquisition request, and transcodes
- the server converts the acquired moving image data into a format that can be played back by the player and transmits it to the player via the gateway device, and the player plays back the received moving image data.
- the means for obtaining a video list from an Internet video site often changes unexpectedly. In addition, new popular video sites may appear.
- Update of the program in the gateway device is generally performed by firmware update. However, since the device is stopped or restarted, availability of the local area network is impaired during that time.
- the mediation program is operated by a software management framework such as an OSGi framework that can install and uninstall software in units of modules. Thereby, the mediation program can be updated without stopping the gateway device.
- the video list of the video site A can be added without adding or changing software to the player 111. Can be displayed on the player 111 and the moving image of the moving image site A can be viewed.
- the video site can collect an advertisement fee. For example, since the number of broadcasts of the advertisement with the advertisement ID1 via the video site A can be known by looking at the row 941, the operator of the video site A is based on the advertisement performance from the publisher of the advertisement ID1. You can charge advertising fees.
- the player 111 can watch the video of the new video site B, the video site bundle B having the same function as the video site bundle A (the difference from the video site bundle A is the content directory creation function 710 In the step 1310, the moving image list acquisition means is different) by using the bundle distribution means 510 of the device management server 132 and installing it using the software management framework 320 of the gateway apparatus 120, without stopping the gateway apparatus. I can do it.
- FIG. 1 is a diagram illustrating a hardware configuration of the entire system.
- FIG. 2 is a diagram showing a software configuration of the player.
- FIG. 3 is a diagram illustrating a configuration of the gateway device.
- FIG. 4 is a diagram showing the configuration of the transcode server.
- FIG. 5 is a diagram showing the configuration of the device management server.
- FIG. 6 is a diagram showing the configuration of the moving image sites A and B.
- FIG. 7 is a diagram showing a configuration of the moving image site A bundle.
- FIG. 8 is a diagram showing a configuration of advertisement data.
- FIG. 9 is a diagram showing a configuration of advertisement performance data.
- FIG. 10 is a diagram showing the configuration of the moving image list data.
- FIG. 11 shows the structure of the content directory.
- FIG. 11 shows the structure of the content directory.
- FIG. 12 is a diagram showing the configuration of the ID moving image related table.
- FIG. 13 shows the flow of the content directory creation function.
- FIG. 14 is a diagram showing a processing flow of the transcoding means.
- FIG. 15 is an explanatory diagram of content directory acquisition / display means.
- FIG. 16 is an explanatory diagram of content reproduction.
- the term “means” is used to mean “means for realizing its function”. This is a means realized by a computer program (software or firmware) that operates a CPU of a server or a built-in CPU of a digital device (including MPU: Micro Processor Unit) being read and operated by the CPU. Therefore, it is a concept that can be grasped as an “object” by grasping a state in which the CPU reads and operates a necessary computer program.
- the term “function” is a function realized by a computer program. Therefore, if the state in which the function is realized is grasped, the function is realized by the CPU, and may be read as “means”.
- FIG. 1 is a diagram showing a hardware configuration of the entire system.
- a player 111 and a gateway device 120 are preferentially or wirelessly connected to the local network 110. Broadcast communication passes between these devices.
- the player 111 includes hardware (CPU, main storage device, network communication interface) as a computer having a network communication function and a display, and acquires and displays hierarchically structured content list data (content directory). It has means for allowing the user to select with a remote controller or the like, obtains the selected content from the network, and plays back the obtained content.
- the detailed configuration of the software will be described with reference to FIG.
- the gateway device 120 includes hardware (CPU, main storage device, at least two network communication interfaces) as a computer having a network communication function, and is connected to the local network 110 and the Internet 130.
- the Internet 130 and the local network 110 are connected to the gateway device 120. Can be relayed. A detailed configuration will be described with reference to FIG.
- the transcode server 131 includes hardware (CPU, main storage device, network communication interface, auxiliary storage device such as HDD) as a computer having a network communication function, and has a function of converting a moving image data format. A detailed configuration will be described later with reference to FIG.
- the device management server 132 is a device for managing the gateway device 120, and includes hardware (CPU, main storage device, network communication interface, auxiliary storage device such as HDD) as a computer having a network communication function. A detailed configuration will be described later with reference to FIG.
- the moving image site A133 is a moving image distribution server on the Internet operated by the moving image distributor A
- the moving image site B134 is a moving image distribution server on the Internet operated by the moving image distributor B.
- These moving image distribution servers include hardware (CPU, main storage device, network communication interface, auxiliary storage device such as HDD) as a computer having a network communication function. A detailed configuration will be described later with reference to FIG.
- FIG. 2 shows the software configuration of the player 111.
- the server discovery unit 210 is a function realization unit for discovering a device connected to the local area network 110 and having a content distribution function.
- the server discovery means 210 can discover a device having a content distribution function by transmitting a broadcast including a device discovery request message and returning each device connected to the local area network 110 returning the function possessed by each device. Such device discovery can be realized, for example, by implementing the uPnP DA standard.
- the content directory acquisition / display unit 220 has a function of acquiring data called a content directory and displaying it on the display of the player 111. The data structure of the content directory will be described with reference to FIG. 11, and the details of the processing of the content directory acquisition / display unit 220 will be described with reference to FIG.
- the content reproduction means 240 is a function for transmitting a content identifier (for example, URL) to a device having a content distribution function, receiving content data from the device, and reproducing the received content data on the display of the player 111.
- a content identifier for example, URL
- the content data format that can be reproduced by the content reproduction means 240 is limited. In the present embodiment, it is assumed that only a moving image in the MPEG2 format can be reproduced.
- the detailed processing flow of the content reproduction means 240 will be described with reference to FIG.
- An example of a player device having the above functions is a DMP (Digital Media Player) device defined by DLNA.
- FIG. 3 shows the software configuration of the gateway device 120.
- the device disclosure unit 310 transmits a message indicating that the device has a content distribution function.
- the software management framework 320 has a function of managing (installing, uninstalling, starting, and stopping) software in units of modules called bundles. It has a function to install and uninstall a bundle without restarting the entire system of the gateway device.
- the OSGi standard may be implemented.
- the bundle group 330 is a bundle managed by the software management framework 320. In this embodiment, there is only one bundle, but a plurality of bundles may exist.
- the moving image site A bundle 331 has a function of mediating between the moving image site A and the player 111. A detailed configuration of the moving image site A bundle 331 will be described with reference to FIG.
- the structure of the content directory 340 will be described with reference to FIG.
- FIG. 4 is a diagram showing a configuration related to the software of the transcode server 131.
- the transcoding unit 410 has a function of acquiring a moving image from the Internet in response to a request from the gateway device 120, converting the acquired moving image into the Mpeg2 format, and returning the converted moving image to the gateway device 120. Details will be described with reference to FIG.
- the advertisement insertion unit 420 has a function of transmitting the advertisement moving image stored in the advertisement data 430 to the gateway device 120.
- the advertisement data 430 is a set of advertisement moving image data, and is stored in the auxiliary storage device.
- a detailed configuration will be described with reference to FIG.
- the advertisement performance data is data indicating the usage status of the advertisement data and is stored in the auxiliary storage device. A detailed configuration will be described with reference to FIG.
- FIG. 5 is a diagram showing a configuration related to the software of the device management server 132.
- the bundle distribution unit 510 has a function of distributing a bundle to the gateway device 120.
- the bundle data 520 is a set of bundles stored in the auxiliary storage device. For example, various bundles such as a video site A bundle 521, a video site B bundle 522, and a device monitoring bundle 523 are stored.
- FIG. 6 shows the software configuration of the servers of the moving image sites A and B.
- the moving image list providing unit 610 determines that the request type is a popular moving image list and returns popular moving image list data.
- An example of the moving image list data will be described with reference to FIG.
- the video distribution means 620 distributes the corresponding video data 630.
- FIG. 7 shows the configuration of the video site A bundle 521.
- the content directory creation means (function) 710 is a means for acquiring the moving image list data from the moving image site A and adding it to the content directory 340. Details will be described with reference to FIG.
- the movie acquisition / relay unit 720 is a unit that relays a movie acquisition request from the player 111. This corresponds to the processing 1620 and 1660 in FIG.
- the ID / moving image association table 730 is data for associating the content directory 340 with the moving image of the moving image site. A detailed configuration will be described with reference to FIG.
- FIG. 8 is a diagram showing the configuration of the advertisement data 430.
- the advertisement ID 810 is a unique integer given to the advertisement.
- URL 820 is a URL indicating a location where a moving image of the advertisement is stored. If the URL indicates a local file, the advertisement data is stored in the transcode server 131, and if the URL indicates a server on the Internet, the advertisement data exists on the Internet.
- FIG. 9 is a diagram showing the configuration of the advertisement performance data 440.
- the advertisement ID 910 is an advertisement ID existing in the advertisement data 430.
- the video site name 920 indicates which site's video is transmitted when the advertisement is transmitted.
- the number of broadcasts 930 indicates the number of times the advertisement has been reproduced. For example, the row 941 indicates that the advertisement with the advertisement ID 1 is reproduced 10027 times in association with the moving image site A.
- FIG. 10 shows the structure of the moving image list data. It consists of a set of a URL 1010 and a movie title 1020 corresponding to the URL.
- a structured language such as XML may be used as the character string representation of the moving image list data.
- FIG. 11 shows the data structure of the content directory 340. It consists of an ID 1110, a parent ID 1120, a type 1130, a name 1140, and a URL 1150, so that a content list can be expressed in a directory structure.
- ID 1110 is a unique ID of content.
- the parent ID 1120 represents the parent directory to which the content belongs.
- the type 1130 represents the format of the content. If it is “directory”, it indicates that the corresponding line is a directory.
- Name 1140 represents the name of the content or directory.
- URL 1150 is a URL indicating the location where the content is located.
- a line 1161 represents the top directory.
- Lines 1162 to 1164 are child elements of the “video site A” directory. This is because the parent ID is “0”.
- three directories are stored.
- Lines 1165 and 1166 are child elements of the directory “Popular Movie” in the line 1161. Two lines representing two Mpeg2 videos are stored.
- Lines 1167 to 1169 are child elements of the directory “category” of the line 1164, and three directories are stored therein.
- FIG. 12 shows the configuration of the ID video related table 730.
- ID 1210 represents a moving image corresponding to ID 1110 of the content directory in FIG.
- the URL 1220 is a URL indicating where the moving image is located on the Internet 130.
- row 1231 corresponds to row 1165 in FIG.
- FIG. 13 is a diagram showing detailed processing of the content directory creation means (function) 710.
- the content directory creation means has the content directory data created so far in the gateway device 120 as the content directory 340. This time, explanation will be made using an example having contents directory data of rows 1161-1164 in FIG.
- the input to the content directory creation means 710 is a directory name.
- Step 1300 If there is an entry in which the ID 1110 corresponding to the input directory name matches the parent ID 1120, the entry is output and the process ends. For example, if the input is “video site A”, the ID 1110 corresponding to “video site A” is 0 from the row 1161, so the rows 1162 to 1164 where the parent ID is 0 are output and terminated. To do.
- Video list data corresponding to the directory name is acquired from video site A.
- the video list providing unit 610 of the video site A is called to acquire a popular video list.
- a content directory data row is generated for each row of the moving image list data in FIG.
- the content directory data created so far includes rows 1161 to 1164.
- the following (1) to (5) are processed.
- (1) Generation of ID 1110 An ID that does not exist in ID 1110 of the content directory created so far is generated. As seen from the IDs of the lines 1161 to 1164, “6” does not exist, and this time, ID 1110 “6” is set.
- (2) Generation of parent ID 1120 ID 1162 corresponding to the input directory name “popular movie” is set. Here, it is “1”.
- Type 1130 generation The type is a format that the player 111 supports. This time it is “Mpeg2 video”.
- the name 1020 is used as it is, and “cat biped walking” is used.
- ⁇ Step 1330> Update the ID video related table. For each row of the moving image list data in FIG. 10, the same URL 1220 as the URL 1010 is used. The ID 2110 uses the ID generated in ⁇ Step 1320> (1). As a result, the ID moving image related table as shown in FIG. 12 is obtained. Finally, the line generated in ⁇ Step 1320> is output. This time, rows 1165 and 1166 are output.
- FIG. 14 is a diagram for explaining the processing of the transcoding unit 410.
- a moving image acquisition request is received from the gateway device 120. The following will be described using an example in which a moving image acquisition request of the moving image site A is received.
- ⁇ Step 1420> As a response to the request, an arbitrary video stored in the advertisement data 430 is transmitted to the gateway device. Even when the transmission is completed, the connection with the gateway device 120 is not disconnected. If transmitted, the advertisement performance 440 is updated. That is, the corresponding broadcast count 930 is incremented. For example, when a video acquisition request for video site A is received and a video with advertisement ID 1 is transmitted, the number of broadcasts 930 in line 941 is incremented.
- Step 1430 The moving image accepted in step 1410 is acquired from the moving image site A.
- Step 1440> The moving image data acquired in step 1430 is converted into a format that can be recognized by the player 111 (Mpeg2 format in this case) and transmitted to the gateway device 120.
- FIG. 15 is a diagram for explaining the processing until the player 111 selects the content to be played back using the content directory acquisition / display unit 220 using the screen displayed on the player 111. This time, it is assumed that rows 1161 to 1164 are stored in the gateway device 120 in advance as an initial configuration of the content directory 340.
- ⁇ Screen 1520> 1511 is selected with the remote control of the player 111 or the like.
- the gateway device is notified that 1511 has been selected.
- the gateway device 120 returns a content directory such as the row 1161 in FIG. As a result, 1521 is displayed.
- ⁇ Screen 1530> 1521 is selected.
- the user selects 1521 and notifies the gateway device of the name “video site A” of 1521.
- the gateway device 120 passes “video site A” as an input to the content directory creation function 710 of the video site A bundle 331.
- the output lines 1162 to 1164 are returned to the player 111.
- the player 111 arranges the names 1140 of the lines 1162 to 1164 as ⁇ screen 1530> and makes them selectable by the remote controller.
- ⁇ Screen 1540> 1532 is selected.
- the gateway device 120 is notified of the selection of 1532 and the name “popular video” of 1532.
- the gateway device 120 passes “popular video” as an input to the content directory creation function 710 of the video site A bundle 331.
- the output lines 1165 to 1166 are returned to the player 111.
- the player 111 arranges the names 1140 in the rows 1165 to 1166 as shown in ⁇ screen 1540> and makes them selectable by the remote controller.
- 1543 and 1544 are “Mpeg2 moving image” when the type 1130 in the rows 1165 and 1166 is viewed, and this indicates that the image is a moving image. When an element representing such a moving image is selected, the processing is passed to the content reproduction means 240.
- FIG. 16 shows a flow of a series of processing until content is reproduced using the content reproduction means 140 and the means described above.
- the contents reproduction means itself are processing 1610 and 1670.
- the player 111 selects the content to be reproduced, and passes the processing to the content reproduction unit 140.
- the content reproduction means sends an HTTP request to this URL. Since the address “133.108.2.1” of the URL is that of the gateway device 1620 this time (see the description of ⁇ Step 1320> (5) in FIG. 13), the request is passed to the gateway device 1620.
- the gateway device 1620 calls the moving image acquisition / relay function 720 of the moving image site A bundle.
- the moving image of the URL being requested is acquired from the moving image site A, converted into a format that can be played back by the player 111 (mpeg2 format), and transmitted to the gateway device 1620.
- the video site bundle B having the same function as the video site bundle A is shown. (The difference from the video site bundle A is that the video list acquisition unit in step 1310 in the content directory creation function 710 is different) using the bundle distribution unit 510 of the device management server 132, and the software management framework of the gateway device 120 It is possible to respond without stopping the gateway device simply by installing using 320.
- It can be used for devices, systems, and services that distribute moving images, music, and still images in fields such as on-premise broadcasting equipment, home television, home networks, and digital home appliances.
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- Information Transfer Between Computers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
本発明が解決すべき課題は、ホームネットワーク上のコンテンツ取得、閲覧が可能なプレーヤデバイスに、新たなソフトウェアをインストールすることなく、インターネット上のコンテンツを閲覧可能にする手段を提供することである。
動画一覧データを取得した相手が、当該動画サイトに所望する動画データを特定して要求すると、動画配信手段620は、動画データ630のうち該当するものを配信する。
入力ディレクトリ名に対応するID1110と親のID1120が一致するエントリが存在する場合は、そのエントリを出力して終了する。
例えば、入力が「動画サイトA」であった場合、行1161より、「動画サイトA」に対応するID1110は0であるため、親のIDが0である行1162~行1164を出力して終了する。
<ステップ1310>
ディレクトリ名に対応する動画一覧データを動画サイトAから取得する。今回の例では、ディレクトリ名が「人気動画」であるので、動画サイトAの動画一覧提供手段610を呼び出し、人気動画一覧を取得する。以下では、取得される動画一覧データとしては図10のようなデータを取得できた例を使いながら説明する。
図10の動画一覧データの各行について、コンテンツディレクトリのデータ行を生成する。これまで作成されたコンテンツディレクトリのデータとしては行1161~1164があるとして、行1041を処理する例で説明する。以下の(1)~(5)を処理する。
(1)ID1110の生成
これまで作成されたコンテンツディレクトリのID1110に存在しないIDを生成する。行1161~1164のIDを見ると「6」は存在しないため、今回はID1110「6」とする。
(2)親のID 1120の生成
入力のディレクトリ名「人気動画」に対応するID1162とする。ここでは、「1」となる。
(3)種別 1130生成
種別としては、プレーヤ111が対応するフォーマットとする。今回は「Mpeg2動画」である。
(4)名前 1140生成
名前は1020のエントリをそのまま使い「猫の二足歩行」とする。
(5)URL1150
URL 1150は、http://<ゲートウェイ装置のアドレス(今回は133.100.2.1とする)>/content.cgi?id=<ID 1110の値>とする。今回は、http://133.108.2.1/content.cgi?id=6となる。
以上の処理で、行1165を生成できた。同様に、行1042について(1)~(5)の処理を行うことにより行1166を生成できる。
ID動画関連テーブルを更新する。図10の動画一覧データの各行について、URL 1220はURL1010と同じものを使う。また、ID2110は、<ステップ1320>(1)で生成したIDを使う。結果、図12のようなID動画関連テーブルとなる。
最後に、<ステップ1320>で生成された行を出力する。今回は行1165,1166を出力する。
<ステップ1410>
ゲートウェイ装置120から、動画の取得リクエストを受け付ける。以下は、動画サイトAの動画の取得リクエストを受け付けた例を使って説明する。
<ステップ1420>
リクエストの返信として、広告データ430に格納された任意の動画をゲートウェイ装置に送信する。送信が終わった場合も、ゲートウェイ装置120とのコネクションは切らない。
送信したら、広告実績440を更新する。つまり、対応する放送回数930をインクリメントする。例えば、動画サイトAの動画の取得リクエストを受付、広告ID1の動画を送信した場合は、行941の放送回数930をインクリメントする。
<ステップ1430>
ステップ1410で受け付けた動画を動画サイトAから取得する。
<ステップ1440>
ステップ1430で取得した動画データを、プレーヤ111が認識できる形式(今回はMpeg2形式)に変換して、ゲートウェイ装置120に送信する。
プレーヤ111の電源を投入し、ネットワーク上のコンテンツを見るためのメニューをリモコンで選択すると、サーバ発見手段210を使って発見したサーバの名称が表示されている。図1の構成だと、サーバ発見手段210に対して、ゲートウェイ装置120中のデバイス公開手段310が「サーバ名称「コンテンツサーバ」」として、応答した結果1511のように表示される。
プレーヤ111のリモコンなどで、1511を選択する。1511を選択したことをゲートウェイ装置に通知する。ゲートウェイ装置120は、図11の行1161のようなコンテンツディレクトリを返す。結果、1521が表示される。
1521を選択する。1521を選択したこと,1521の名称「動画サイトA」をゲートウェイ装置に通知する。ゲートウェイ装置120は、動画サイトAバンドル331のコンテンツディレクトリ作成機能710に「動画サイトA」を入力として渡す。その出力である、行1162~1164をプレーヤ111に返す。プレーヤ111は、行1162~1164の名前1140を<画面1530>のように並べ、リモコンで選択可能にする。
1532を選択する。同様に、1532を選択したこと、1532の名称「人気動画」をゲートウェイ装置120に通知する。ゲートウェイ装置120は、動画サイトAバンドル331のコンテンツディレクトリ作成機能710に「人気動画」を入力として渡す。その出力である、行1165~1166をプレーヤ111に返す。プレーヤ111は、行1165~1166の名前1140を<画面1540>のように並べ、リモコンで選択可能にする。ここで1543,1544は,行1165,1166の種別1130を見ると、「Mpeg2動画」となっており、動画であることを表している。このような動画であることを表す要素を選択した場合は、コンテンツ再生手段240に処理がわたる。
コンテンツディレクトリ取得・表示手段220を使ってプレーヤ111で、再生したいコンテンツを選択したとして、コンテンツ再生手段140に処理を渡す。コンテンツ再生手段には、選択したコンテンツのコンテンツディレクトリデータの該当する行のURL1150を渡す。例えば、<画面1540>の1543を選択した場合は、行1165のURLである「http://133.100.2.1/content.cgi?id=6」がコンテンツ再生手段140に渡る。コンテンツ再生手段はこのURLに対してHTTPリクエストを送る。今回はURLのアドレス「133.108.2.1」はゲートウェイ装置1620のものであるので(図13の<ステップ1320>(5)の説明参照)、ゲートウェイ装置1620にリクエストが渡る。
ゲートウェイ装置1620は、動画サイトAバンドルの動画取得・中継機能720を呼び出す。動画取得・中継機能720は、リクエスト中のURLのid=<数字>の<数字>を取り出す。そしてID動画関連テーブル730のID1210とマッチするURL1220を取り出す。今回は<数字>は6であるため行1231のURL「http://dougasite-a.com/cat.flv」が取り出される。そして、トランスコードサーバ1630をhttp proxyとして、取り出したURLに対してhttp getリクエストをトランスコードサーバ1630に送信する。
トランスコードサーバ131のトランスコード手段410を使い、リクエスト中のURLの動画を動画サイトAから取得、プレーヤ111で再生できる形式(mpeg2形式)に変換し、ゲートウェイ装置1620に送信する。
mpeg2形式の動画が、プレーヤ111に渡り、ディスプレイ上に再生される。
111 プレーヤ
120 ゲートウェイ装置
130 インターネット
131 トランスコードサーバ
132 デバイス管理サーバ
133 動画サイトA
134 動画サイトB
210 サーバ発見手段
220 コンテンツディレクトリ取得・表示手段
240 コンテンツ再生手段
310 デバイス公開手段
320 ソフトウェア管理フレームワーク
330 バンドル群
331 動画サイトAバンドル
340 コンテンツディレクトリ
410 トランスコード手段
420 広告挿入手段
430 広告データ
440 広告実績データ
510 バンドル配信手段
520 バンドルデータ
521 動画サイトAバンドル
522 動画サイトBバンドル
523 デバイス監視バンドル
610 動画一覧提供手段
620 動画配信手段
630 動画データ
710 コンテンツディレクトリ作成手段
720 動画取得・中継手段
730 ID・動画関連テーブル
Claims (4)
- インターネットに接続された動画サイトと、構内LANに接続されたプレーヤ装置との通信を中継するゲートウェイ装置として設けられ、CPUと主記憶装置と二つのネットワーク通信インタフェースを有するコンテンツ配信装置であって、
前記プレーヤ装置からデバイス発見要求メッセージを受け、それに応答して前記インターネットに対してメッセージを送信するデバイス公開手段と、
バンドル単位でソフトウェアを管理するソフトウェア管理フレームワーク手段と、
該ソフトウェア管理フレームワーク手段が管理し、前記動画サイトごとに異なるバンドルからなり、それぞれが前記動画サイトと前記プレーヤ装置との仲介手段を構成するバンドル群と、
ディレクトリ構造でコンテンツ一覧を表現するコンテンツディレクトリと
を有し、
前記構内LAN外のインターネット動画サイトに存在するコンテンツの再生を可能にすべく、前記動画サイトから動画一覧を取得し、動画一覧データをコンテンツディレクトリに変換し前記プレーヤ装置に送信するコンテンツ配信装置。 - インターネットに接続された動画サイトと、構内LANに接続されたプレーヤ装置との通信を中継するゲートウェイ装置が設けられる場合に、前記動画サイトと前記ゲートウェイ装置との中間処理をすべく、前記インターネット上にサーバ装置として設けられ、CPUと主記憶装置とネットワーク通信インタフェースを有するコンテンツ配信装置であって、
前記プレーヤ装置に表示された前記動画サイト上のコンテンツ一覧よりコンテンツを選択された場合に、前記ゲートウェイ装置が送信するコンテンツ取得リクエストを受信するコンテンツ取得リクエスト受信手段と、
該コンテンツ取得リクエスト受信手段が受信した当該リクエスト中のコンテンツを前記動画サイトより取得するコンテンツ取得手段と、
該コンテンツ取得手段が取得したコンテンツを前記プレーヤ装置で再生可能な形式に変換するトランスコード手段と、
該トランスコード手段が変換したデータを前記ゲートウェイ装置に送信するコンテンツ送信手段と
を備えたコンテンツ配信装置。 - 請求項2に記載したコンテンツ配信装置であって、
前記コンテンツ送信手段がコンテンツを前記ゲートウェイ装置に送信する際に、任意の動画データを挿入する動画挿入手段をさらに有するコンテンツ配信装置。 - インターネットに接続された動画サイトと構内LANに接続されたプレーヤ装置との通信を中継しCPUと主記憶装置と二つのネットワーク通信インタフェースを有するゲートウェイ装置と、前記動画サイトと前記ゲートウェイ装置との中間処理をすべく前記インターネット上に設けられCPUと主記憶装置とネットワーク通信インタフェースを有するトランスコードサーバ装置とを有するコンテンツ配信システムであって、
前記ゲートウェイ装置は、
前記プレーヤ装置からデバイス発見要求メッセージを受け、それに応答して前記インターネットに対してメッセージを送信するデバイス公開手段と、
バンドル単位でソフトウェアを管理するソフトウェア管理フレームワーク手段と、
該ソフトウェア管理フレームワーク手段が管理し、前記動画サイトごとに異なるバンドルからなり、それぞれが前記動画サイトと前記プレーヤ装置との仲介手段を構成するバンドル群と、
ディレクトリ構造でコンテンツ一覧を表現するコンテンツディレクトリと
を有し、
前記トランスコードサーバ装置は、
前記プレーヤ装置に表示された前記動画サイト上のコンテンツ一覧よりコンテンツを選択された場合に、前記ゲートウェイ装置が送信するコンテンツ取得リクエストを受信するコンテンツ取得リクエスト受信手段と、
該コンテンツ取得リクエスト受信手段が受信した当該リクエスト中のコンテンツを前記動画サイトより取得するコンテンツ取得手段と、
該コンテンツ取得手段が取得したコンテンツを前記プレーヤ装置で再生可能な形式に変換するトランスコード手段と、
該トランスコード手段が変換したデータを前記ゲートウェイ装置に送信するコンテンツ送信手段と
を有し、
前記構内LAN外のインターネット動画サイトに存在するコンテンツの再生を可能にするコンテンツ配信システム。
Priority Applications (5)
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EP09848577.4A EP2337349A4 (en) | 2009-10-20 | 2009-10-20 | DEVICE AND SYSTEM FOR CONTENT DISTRIBUTION |
JP2011501027A JP5498476B2 (ja) | 2009-10-20 | 2009-10-20 | コンテンツ配信装置およびシステム |
US13/061,450 US20120096119A1 (en) | 2009-10-20 | 2009-10-20 | Contents delivery apparatus and system |
CN2009801329719A CN102132539B (zh) | 2009-10-20 | 2009-10-20 | 内容分发装置及系统 |
PCT/JP2009/005475 WO2011048625A1 (ja) | 2009-10-20 | 2009-10-20 | コンテンツ配信装置およびシステム |
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PCT/JP2009/005475 WO2011048625A1 (ja) | 2009-10-20 | 2009-10-20 | コンテンツ配信装置およびシステム |
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US (1) | US20120096119A1 (ja) |
EP (1) | EP2337349A4 (ja) |
JP (1) | JP5498476B2 (ja) |
CN (1) | CN102132539B (ja) |
WO (1) | WO2011048625A1 (ja) |
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WO2022071618A1 (ko) * | 2020-09-29 | 2022-04-07 | 염주호 | 중개 서버의 컨텐츠 공유 방법 |
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Publication number | Publication date |
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CN102132539B (zh) | 2013-12-11 |
JPWO2011048625A1 (ja) | 2013-03-07 |
JP5498476B2 (ja) | 2014-05-21 |
CN102132539A (zh) | 2011-07-20 |
US20120096119A1 (en) | 2012-04-19 |
EP2337349A1 (en) | 2011-06-22 |
EP2337349A4 (en) | 2013-05-22 |
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