JP2010124269A - Video receiving apparatus and gui display method in video receiving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video receiving apparatus and a GUI display method in video distribution services in which a user does not feel complexity even in the case where a request to a part of a file is converted to a request for the overall file by deletion or the like of a Range header due to a proxy server interposed between a video server and the receiving apparatus. <P>SOLUTION: A video receiving apparatus transmits beforehand a request for performing the same operation as an ordinary video request at a proxy server to the proxy server and determines beforehand whether or not a request for a part of a video file is delivered to a video server via the proxy server as requested, namely, whether or not a trick play enabled situation is provided. In the case where it is determined that the trick play enabled situation is not provided, when playing a user desired video file, a trick play operation enabled GUI screen is not displayed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a moving image receiving apparatus (hereinafter referred to as a receiving apparatus) in a moving image distribution service using a network, and a display method of a graphical user interface (GUI) in the receiving apparatus. In particular, the present invention relates to a receiving apparatus and a GUI display method related to special reproduction when a proxy server is interposed between a moving image server and the receiving apparatus.

  Currently, video distribution services using networks such as the Internet are beginning to spread. When performing special playback (fast forward, rewind, skip, etc.) in moving image distribution using a network, three types of methods are mainly used. In the first method, the moving image is accumulated in the receiving device in parallel with the moving image reproduction in the receiving device, and the special reproduction is realized only in the accumulated range. In the second method, a moving image server prepares several moving image files for special reproduction in addition to a moving image file for normal reproduction, and the receiving apparatus accesses one of the different moving image files as necessary. In the third method, the receiving device requests the moving image server to transmit only the portion necessary for special reproduction in the moving image, and reproduces the received portion necessary for special reproduction. In special playback such as fast forward and rewind, such an operation is repeated. In addition, a method combining the first to third methods is used.

  Considering the advantages and disadvantages of the above first to third methods, the first method has the disadvantage that only the special reproduction within the range stored in the receiving device can be handled, and the receiving device requires a large storage area. Therefore, it is not suitable for household appliances such as televisions. In the second method, it is not necessary to secure a large storage area in the receiving device. However, if the number of files to be stored on the moving image server side increases and the number of moving images to be distributed is large, a large scale is required. It has the disadvantage that a storage medium is required. In contrast, in the third method, since the receiving device requests and reproduces only the part necessary for special reproduction from the moving image server, both the moving image server and the receiving device There is an advantage that the burden of securing a recording medium and a storage area necessary for special reproduction becomes very light.

  On the other hand, when looking at the protocols used in the video distribution service, there are several protocols used between the video server and the receiving device. In recent years, hypertext disclosed in Non-Patent Document 1 is available. A transfer protocol (HTTP: HyperText Transfer Protocol) has been increasingly used.

  When special reproduction is performed using the above third method using HTTP, the Range header defined in Non-Patent Document 1 is used. For example, when skipping a video 3 minutes ahead of the current viewing time, the receiving device sends an HTTP request that specifies from the byte corresponding to 3 minutes after the video file to the end of the video header in the Range header. The moving image server transmits the portion after the byte specified by the receiving device in the moving image file.

  However, when a proxy server is interposed between the video server and the receiving device, some proxy servers delete the Range header included in the HTTP request sent from the receiving device and send it to the video server. There is. The reason is due to anti-virus measures. The proxy server detects the virus by checking whether the head part of the file to be relayed matches the pattern of the malicious file containing the virus. Since the virus detection process cannot be performed, the range header of the HTTP request received from the receiving apparatus is deleted, and the entire file is converted into an HTTP request for requesting and transmitted to the video server.

  When the proxy server performs such processing, the normal playback from the beginning of the video is always performed even if special reception is performed by the receiving device by acquiring the third method, that is, acquiring a part of the video file one after another. I can only do it. However, on the other hand, the user is presented with a GUI related to special reproduction such as a fast forward / rewind button and a skip button. In such a case, there is a problem that the user cannot actually perform the special reproduction even when operating these GUIs, and feels annoyance and annoyance.

In order to solve such a problem, Patent Document 1 describes the capability of the remote operation terminal device (corresponding to the receiving device of the present invention) of the device (corresponding to the moving image server of the present invention) ), And a method for constructing a GUI for operating the device based on the device information is disclosed.
JP 2007-111488 A R. Fielding et al., "Hypertext Transfer Protocol-HTTP / 1.1", RFC2616.

  However, the conventional method disclosed in Patent Document 1 has a problem that it cannot cope with the case where the proxy server deletes the Range header regardless of the receiving device or the moving image server. That is, even if the exchange between the video server and the receiving apparatus is performed in advance, the receiving apparatus determines that special playback is possible, and as a result, if the proxy server deletes the Range header, Has a problem that a special reproduction GUI that cannot be reproduced is provided.

  The present invention has been made in view of the above problems, and a proxy server interposed between a moving image server and a receiving device deletes a range header and requests a request for a part of an image file. An object of the present invention is to provide a receiving apparatus in a video distribution service and a GUI display method in the receiving apparatus that does not make the user feel annoyed or bothered even when the entire file is converted into a request for request. And

  In order to achieve the above object, a moving picture receiving apparatus according to a first invention of the present application is a moving picture receiving apparatus that receives a moving picture from a moving picture server that holds a moving picture file via a network and a proxy server. Display means for displaying the distributed image and GUI (Graphical User Interface) screen, communication means for transmitting / receiving commands and image data to / from the moving image server via the network and the proxy server, and a user request A header of a response by the video server when the user requests a part of the video file desired by the user to the video server via the communication means when the video file playback request is received. The first command for transmitting the requested first video request command A response unit that analyzes a response command from the video server corresponding to the first video request command transmitted by the transmission unit and the first command transmission unit, and the response command matches the first video request command A determination unit that determines whether the command is a command; and after the determination unit determines whether the response command is a response command that matches the first video request command, And a second command transmitting means for transmitting a second moving image request command for requesting the moving image file desired by the user to the moving image server. If it is determined that there is not, a special playback operation can be performed on the display means when the video file desired by the user is played back. It is characterized in that to avoid the screen display of the GUI information.

  The moving picture receiving apparatus according to the second aspect of the present invention is the moving picture receiving apparatus according to the first aspect of the present invention, wherein, in the determination means, the response command is a response command that matches the first moving image request command. If it is determined that there is no special reproduction operation, GUI information transmission is impossible. If it is determined that the response command is a match, GUI information transmission is requested to request transmission of GUI information capable of special reproduction operation. GUI request means for transmitting a request to the video server via the communication means is further provided.

  In addition, the moving image receiving device of the third invention of the present application is the moving image receiving device of the first invention of the present application, wherein the moving image receiving device retains GUI information related to the moving image received from the moving image server. And when the determination means determines that the response command is not a response command that matches the first moving image request command, GUI information that cannot be used for special playback operation is displayed as a matching response. When it is determined that the command is a command, GUI information capable of special reproduction operation is extracted from the GUI information holding means and displayed on the display means.

  The moving picture receiving apparatus according to the fourth aspect of the present invention is the moving picture receiving apparatus according to any one of the first to third aspects of the present invention, wherein a protocol used for communication in the communication means is HTTP (Hyper Text Transfer Protocol). The first moving image request command is an HTTP HEAD command.

  The GUI display method in the video receiver of the fifth invention of the present application is a screen display method in the video receiver that receives a video from a video server holding a video file via a network and a proxy server. In the display step of displaying the image and GUI screen distributed from the server, the communication step of transmitting / receiving commands and image data to / from the moving image server via the network and the proxy server, and the communication step, the user When a request to reproduce the desired video file is received from the first, the video server requests at least a header of a response from the video server when the user requests a part of the desired video file. A first command transmission step of transmitting the video request command of The response command from the video server corresponding to the first video request command transmitted in the first command transmission step is analyzed, and the response command becomes a response command that matches the first video request command. A determination step for determining whether the response command is a response command that matches the first video request command in the determination step; then, in the communication step, the video server A second command transmission step of transmitting a second video request command for requesting all of the video files desired by the user, wherein in the determination step, the response command is the first video If it is determined that the response command does not match the request command, the user There upon playback of the video file desired, is characterized in that to avoid the screen display of the GUI information that can special reproduction operation in the display step.

  The GUI display method in the moving picture receiving apparatus according to the sixth aspect of the present invention is the GUI displaying method in the moving picture receiving apparatus according to the fifth aspect of the present invention, wherein the response command is changed to the first moving picture request command in the determining step. When it is determined that the response command is not matched, transmission of GUI information that cannot be performed by the special reproduction operation is performed. When it is determined that the response command is matched, the GUI that can perform the special reproduction operation is performed. The communication step further includes a GUI requesting step for transmitting a GUI information transmission request for requesting transmission of information to the moving image server.

  Further, the GUI display method in the moving picture receiving apparatus of the seventh invention of the present application is the GUI display method in the moving picture receiving apparatus of the fifth invention of the present application, wherein the GUI information holding the GUI information related to the moving picture received from the moving picture server is used. An information holding step, and in the determining step, when it is determined that the response command is not a response command that matches the first video request command, the special reproduction operation held in the GUI information holding step When it is determined that the GUI information that cannot be used is a matching response command, the GUI information that can be used for the special reproduction operation held in the GUI information holding step is displayed in the display step. It is a feature.

  The GUI display method in the moving picture receiving apparatus according to the eighth aspect of the present invention is the GUI display method in the moving picture receiving apparatus according to the fifth to seventh aspects of the present invention, wherein the protocol used for communication in the communication step is HTTP (Hyper). Transfer Protocol), wherein the first moving image request command is an HTTP HEAD command.

  According to the present invention, the moving image receiving apparatus transmits a request in the proxy server that performs the same operation as a normal moving image request, for example, a request such as a HEAD request in HTTP, to the proxy server in advance. It is possible to know in advance whether a request to acquire a part of a file reaches the moving image server as requested via the proxy server, that is, whether special reproduction is possible. As a result, when the video receiving device accesses the video server via the proxy server, the proxy server converts a request for requesting a part of the video file into a request for requesting the entire video file. In a situation where reproduction is impossible, it is possible to prevent the GUI screen capable of special reproduction operation from being displayed, thereby eliminating the user's irritation and annoyance.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
A moving picture receiving apparatus (hereinafter referred to as a receiving apparatus) according to the present invention has a network interface and can receive a moving picture distribution service using HTTP from a moving picture server on the Internet (hereinafter referred to as a television receiver). (Abbreviated as “TV”). Also, the GUI screen display method according to the present invention can be realized as a GUI screen of a moving image distribution service displayed on the television screen. The program for realizing the GUI screen may be installed in advance in the television, or may be transmitted from the moving image server to the television each time.

  FIG. 1 is a diagram illustrating an example of a configuration in which a receiving apparatus according to Embodiment 1 of the present invention is connected to a moving image server via a proxy server and the Internet.

  In FIG. 1, the moving image server 1 transmits a moving image file recorded in the moving image storage unit 101 to the Internet 4 in response to a request from the receiving device 3. Further, the moving image server 1 transmits the GUI program recorded in the GUI storage unit 102 to the Internet 4 in response to a request from the receiving device 3. In the GUI storage unit 102, at least both a GUI program including a GUI for special reproduction and a GUI program not including a GUI for special reproduction are recorded.

  The receiving device 3 transmits a request for requesting transmission of a moving image file or a GUI program to the network 5, and receives the moving image file or GUI program (GUI information) transmitted from the moving image server as a response.

  All information (request, moving image file, GUI program, etc.) exchanged between the moving image server 1 and the receiving device 3 passes through the proxy server 2. The proxy server 2 performs transmission / reception as a proxy for the receiving device 3 with each server (the moving image server 1 and the servers 61 to 6 n) on the Internet 4 including the moving image server 1.

  As an example of the network 5, in addition to the case where it is a network constituting a part of the Internet 4, it is an intranet within a company, each home and ISP provided by an Internet service provider (ISP) There is a case of a network that connects two stations.

  Next, the configuration and operation of the receiving apparatus will be described with reference to FIG. FIG. 2 is a block diagram showing the configuration of the receiving apparatus according to Embodiment 1 of the present invention.

  In FIG. 2, the receiving device 3 includes a communication unit 21, an image decoding unit 22, a display unit 23, a determination unit 24, a GUI request unit 25, a first command transmission unit 26, and a second command transmission unit 27. The command transmission means 28, the operation input means 29, and the control means 30 which controls the whole receiving apparatus 3 are comprised.

  The communication unit 21 transmits and receives commands and image data to and from the moving image server 1 via the network 5, the proxy server 2, and the network 4. The image data, GUI information, etc. received by the communication means 21 are decoded by the image decoding means 22, and the decoded image, GUI information, etc. are transmitted to the display means 23 and displayed.

  When the operation input unit 29 that accepts a playback request for a video file from the user receives a playback request for a video file desired by the user, the first command transmission unit 26 sends a part of the video file desired by the user. The first moving image request command for requesting at least the header of the response by the moving image server 1 when requesting is sent to the moving image server 1 via the communication means 21.

  The determination unit 24 receives and analyzes the response command transmitted from the video server 1 in response to the first video request command transmitted by the first command transmission unit 26 via the communication unit 21 and receives the response command. It is determined whether the received response command is a response command that matches the first moving image request command.

  The second command transmission unit 27 determines whether or not the response command from the video server 1 is a response command that matches the first video request command, and then determines whether or not the video command is transmitted via the communication unit 21. A second moving image request command for requesting a moving image file desired by the user is transmitted to the server 1.

  The GUI request unit 25 determines the GUI information that cannot be used for the special reproduction operation when the determination unit 24 determines that the response command from the video server 1 is not a response command that matches the first video request command. If it is determined that the response command is a matching response command, a GUI information transmission request for requesting transmission of GUI information capable of special reproduction operation is transmitted to the video server 1 via the communication means 21. . The GUI information transmitted from the moving image server 1 in response to the GUI information transmission request from the GUI request unit 25 is received by the communication unit 21 and processed by the image decoding unit 22, and then displayed on the display unit 23.

  With the configuration described above, when the determination unit 24 determines that the response command from the video server 1 is not a response command that matches the first video request command, that is, special playback is disabled. In a possible situation, when displaying a moving image file desired by the user, it is possible to prevent the display means 23 from displaying the GUI information on which special playback operations can be performed.

  In the above description, the GUI information (GUI program) is recorded in the moving image server 1. However, the present invention is not limited to this. For example, the receiving device 3 has GUI information holding means (not shown). And the GUI information holding means may hold the GUI information in advance. In this case, since there is no transmission delay in the networks 4 and 5, the time until the GUI is displayed on the display unit 23 of the receiving device 3 is shortened.

  In the above description, the first command transmission unit 26 and the second command transmission unit 27 are independent and separate units. However, the present invention is not limited to this. For example, the first command transmission unit 26 and the second command transmission unit 27 One command transmission unit 28 having the function of the second command transmission unit 27 may be used.

  Next, a specific example of the exchange of data and information among the moving image server 1, the proxy server 2, and the receiving device 3 will be described using FIG. 3, FIG. 4, and FIG. FIG. 3 is a diagram illustrating an example of a sequence of exchanges between the moving image server, the proxy server, and the receiving device according to Embodiment 1 of the present invention. In FIG. An example of converting a request for requesting a part of a moving image file to the moving image server 1 into a request for requesting the entire moving image file is shown. FIG. 4 is a diagram illustrating an example of an HTTP message exchanged between the moving image server, the proxy server, and the receiving device according to the first embodiment of the present invention, and FIG. 5 illustrates the HTTP message according to the first embodiment of the present invention. It is a figure which shows an example of a GUI screen.

  In FIG. 5, here, description will be made on the assumption that the GUI shown in FIG. 5A is displayed on the display screen of the display unit 23 of the receiving device 3. In addition, (a) of FIG. 5 is a moving image introduction screen. In FIG. 5A, a video introduction description 41 is a description for introducing each video provided by the video server 1 (for example, a title, recommendation level, etc.).

  When the user places a cursor on the screen on one of a plurality of moving image introduction descriptions 41 using, for example, the up / down / left / right keys of the remote controller which is one of the operation input means 29, the display on the display means 23 of the receiving device 3 is displayed. On the GUI screen displayed on the screen, a representative still image 42 of the moving image corresponding to the moving image introduction description 41 where the cursor is placed and detailed data 43 regarding the moving image (for example, performer name, synopsis, and screening time, etc.) are displayed. Is done. When the user selects a desired moving image based on the representative still image 42 and the detailed data 43 on the moving image and presses the determination key on the remote controller, the GUI displayed on the display screen of the receiving device 3 is shown in FIG. From (a) to (b) in FIG. 5 or (c) in FIG. 4, the reproduction of the moving image in which the representative image is displayed, that is, the moving image desired / selected by the user is started. The difference between the display screens in FIGS. 5B and 5C is only whether or not there is a special playback (skip 44, fast forward 47 and rewind 45) button.

  In FIG. 3, when the operation input means 29 of the receiving device 3 receives a moving image reproduction request from the user (FIG. 3A) (the display on the display means 23 is displayed from (A) in FIG. 5 (b) or (c)), the first command transmission means 26 of the receiving device 3 designates the address of the moving image, and an HTTP HEAD request (first 1 video request command) is transmitted to the proxy server 2 via the communication means 21 ((1) in FIG. 3). (1) in FIG. 4 shows the contents of the request. As an example, the address of the video server 1 is videoserver.sample, the video address is /data/video001.mp4, and the video file is stored using the Range header. The first 100 bytes are specified.

  The proxy server 2 that has received the request shown in (1) of FIG. 4 from the receiving device 3 receives the HTTP HEAD request shown in (2) of FIG. 4 with the range header removed from the request shown in (1) of FIG. And transmitted to the moving image server 1 ((2) in FIG. 3). The video server 1 that has received the request shown in (2) of FIG. 4 from the proxy server 2 uses only the header part shown in (3) of FIG. 4 in the HTTP response for returning the entire specified video file. It returns to the proxy server 2 and the proxy server 2 relays it to the receiving device 3 ((3) in FIG. 3).

  The judging unit 24 of the receiving device 3 sees the HTTP HEAD request transmitted / requested from the first command sending unit 26 and the HTTP response received from the proxy server 2 as a response from the video server 1 corresponding to the requested request. Judge that special playback is not possible. When the receiving device 3 determines that special playback is not possible, the reception device 3 displays a GUI screen without the special playback buttons (skip, fast forward, rewind) shown in FIG. In order to request the GUI program (/data/notrickplay.js), the HTTP GET request shown in (4) of FIG. 4 is transmitted, and the proxy server 2 relays it to the video server 1 ((( 4)).

  The video server 1 generates an HTTP response (see (5) in FIG. 4) that carries the specified GUI program from the receiving device 3 via the proxy server 2, and transmits the HTTP response to the receiving device 3 via the proxy server 2 (FIG. 3). (5)). The receiving device 3 uses the GUI program received from the video server 1 via the proxy server 2 in the receiving means 21 to display the GUI screen without the special playback button shown in FIG. (B) in FIG. 3 and an HTTP GET request (second video request command, see FIG. 4 (6)) requesting acquisition of all video files is transmitted to the video server 1 via the proxy server 2. ((6) in FIG. 3). The moving image server 1 generates an HTTP response (see (7) in FIG. 4) carrying the moving image file transmitted / designated from the second command transmission unit 27 of the receiving device 3, and sends it to the receiving device 3 via the proxy server 2. Transmit ((7) in FIG. 3). The receiving device 3 starts playing the moving image received from the moving image server 1 via the proxy server 2 ((c) in FIG. 3).

  Next, another specific example regarding the exchange of data and information among the moving image server 1, the proxy server 2, and the receiving device 3 will be described with reference to FIGS. FIG. 6 is a diagram showing another example of a sequence of exchanges between the moving image server, the proxy server, and the receiving device according to Embodiment 1 of the present invention. In FIG. 6, the proxy server 2 is a receiving device. 3 shows an example in which a request for requesting a part of a moving image file from the moving image server 1 to 3 is not converted into a request for requesting the entire moving image file. Moreover, FIG. 7 is a figure which shows the other example of the HTTP message exchanged between the moving image server, proxy server, and receiving apparatus in Embodiment 1 of this invention.

  In FIG. 5, as in the case of FIG. 2, a description will be given assuming that the GUI shown in FIG. 5A is displayed on the display screen of the display unit 23 of the receiving device 3 in advance. When the operation input means 29 of the receiving device 3 receives a video playback request from the user ((a) of FIG. 6) (the display screen of the display means 23 changes from (a) to (b) in FIG. ) Or (c), the first command transmission means 26 of the receiving device 3 designates the address of the moving picture that has been requested to be played back by the user, and an HTTP HEAD request that designates only a part of the moving picture file. (The first video request command, see (1) in FIG. 7) is transmitted to the proxy server 2, but unlike the case shown in FIG. 3, the proxy server 2 receives the range header from the request from the receiving device 3. Is transmitted to the moving image server 1 ((1) in FIG. 6).

  The video server 1 returns only the header part (see (2) in FIG. 7) of the HTTP response for returning a part of the video specified from the receiving device 3 via the proxy server 2 to the proxy server 2, The proxy server 2 relays this to the receiving device 3 ((2) in FIG. 6). Unlike the case shown in FIG. 3, the status code of the HTTP response at this time is 206 as shown in (2) of FIG.

  The judging unit 24 of the receiving device 3 sees the HTTP HEAD request transmitted / requested from the first command sending unit 26 and the HTTP response received from the proxy server 2 as a response from the video server 1 corresponding to the requested request. Judge that special playback is possible. When the determination unit 24 determines that the special reproduction can be performed, the GUI request unit 25 of the receiving device 3 displays a GUI screen (see (B) in FIG. 5) having a special reproduction button (skip, fast forward, rewind). An HTTP GET request (see (3) in FIG. 6) for requesting a GUI program (/data/trickplay.js) is transmitted, and the proxy server 2 relays it to the video server 1 ((( 3)).

  The video server 1 generates an HTTP response (see (4) in FIG. 7) that carries the specified GUI program from the receiving device 3 via the proxy server 2, and transmits the HTTP response to the receiving device 3 via the proxy server 2 (FIG. 6). (4)). The receiving device 3 uses the received GUI program to display a GUI screen (see (b) of FIG. 5) with a special playback button on the display means 23 ((b) of FIG. 6) and the second The command transmitting means transmits an HTTP GET request (second moving image request command, see (5) in FIG. 6) requesting acquisition of all moving image files to the moving image server 1 via the proxy server 2 ((( 5)). The moving image server 1 generates an HTTP response (see (6) in FIG. 7) that carries the specified moving image file from the receiving device 3, and transmits it to the receiving device 3 via the proxy server 2 ((6) in FIG. 6). . The receiving device 3 starts reproduction of the moving image received from the moving image server 1 via the proxy server 2 (c in FIG. 6).

  Here, the exchange of data and information regarding special reproduction of a moving image among the moving image server 1, the proxy server 2, and the receiving device 3 will be described.

  On the screen shown in FIG. 5B, special playback of a moving image is possible. For example, in the case of skipping, when the skip button 44 is pressed, playback can be performed from 30 seconds ahead. Further, when rewinding, fast-forwarding, or pausing, the user can press the rewind button 45, fast-forward button 47, or pause button 46, respectively. Further, in order to display the current playback position, total time, etc., a playback position display bar 48 which is a bar for displaying the current playback position in an analog manner, and the elapsed playback time and total playback time are digitally displayed. A text 49 representing the elapsed playback time and the total playback time, which are texts to be displayed, is provided.

  When the special playback input from the user is acquired during the video playback ((d) in FIG. 6), for example, when the user presses the skip button, the receiving device 3 determines the number of bytes of the video file to be skipped. Is calculated. This calculation can be performed using the current playback position, the bit rate of the moving image, and the number of seconds to skip (for example, 30 seconds in the first embodiment of the present invention). This can be done by having a table of the number of seconds to skip and the number of bytes to skip for that video in advance.

  When the number of bytes to be skipped (for example, 10000 bytes) is determined ((e) in FIG. 6), the receiving apparatus 3 specifies an HTTP GET request in which the 10000th byte and subsequent bytes are specified in the Range header (see (7) in FIG. 7). ) Is transmitted to the moving image server 1 via the proxy server 2 ((7) in FIG. 6). The moving image server 1 generates an HTTP response (refer to (8) in FIG. 7) carrying 10,000 bytes or more of the moving image file designated from the receiving device 3, and transmits it to the receiving device 3 via the proxy server 2 (FIG. 6). (8)). The receiving device 3 starts playing the moving image received from the moving image server 1 via the proxy server 2 ((f) in FIG. 5).

  As described above, according to the first embodiment of the present invention, the receiving device 3 transmits an HTTP HEAD request to the moving image server 1 before acquiring the GUI program. It is possible to know in advance whether or not a request for acquiring a part of the video reaches the video server as requested, that is, whether or not special playback is possible. As a result, when the receiving device 3 accesses the video server 1 via the proxy server 2, the proxy server 2 converts a request for requesting a part of the video file into a request for requesting the entire video file. Even so, the receiving device 3 can display a GUI excluding the GUI related to special reproduction, and the user can be prevented from feeling annoyed or bothered.

  In the first embodiment of the present invention, the GUI program is divided as an example depending on whether or not there is a special playback button. However, the present invention is not limited to this. For example, conditional branching in the same program, etc. Thus, the display / non-display of the special playback button may be changed.

  In addition, the present invention can be provided not only as a moving image receiving apparatus provided with each means in Embodiment 1 of the present invention, but also a GUI display method in the moving image receiving apparatus having each step included in the moving image receiving apparatus, and It is also possible to provide a GUI display program that causes a computer to execute the GUI display method in the moving picture receiving apparatus.

  The moving picture receiving apparatus and the GUI display method in the moving picture receiving apparatus according to the present invention can be applied to a moving picture receiving apparatus that receives a moving picture from a moving picture distribution server on the Internet via a proxy server, and in particular, a moving picture using HTTP. When a distribution service is performed, the present invention can be applied to a moving image receiving apparatus and a GUI display in the moving image receiving apparatus when special reproduction is realized using an HTTP Range header.

The figure which shows an example of the structure by which the receiver which concerns on Embodiment 1 of this invention is connected with a moving image server via a proxy server, the internet, etc. The block diagram which shows the structure of the receiver which concerns on Embodiment 1 of this invention. The figure which shows an example of the sequence of the exchange between the moving image server in Embodiment 1 of this invention, a proxy server, and a receiver. The figure which shows an example of the HTTP message exchanged between the moving image server, proxy server, and receiving apparatus in Embodiment 1 of this invention. The figure which shows an example of the GUI screen in Embodiment 1 of this invention. The figure which shows the other example of the sequence of the exchange between the moving image server in Embodiment 1 of this invention, a proxy server, and a receiver. The figure which shows the other example of the HTTP message exchanged between the moving image server in Embodiment 1 of this invention, a proxy server, and a receiver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movie server 2 Proxy server 3 Movie receiver 4 Internet 5 Network 21 Communication means 22 Image decoding means 23 Display means 24 Judgment means 25 GUI request means 26 1st command transmission means 27 2nd command transmission means 28 Command transmission means 29 Operation input means 30 Control means 41 Movie introduction description 42 Representative still image 43 Detailed data about the movie 44 Skip button 45 Rewind button 46 Pause button 47 Fast forward button 48 Playback position display bar 49 Text indicating elapsed playback time and total playback time 61 -6n Server on the Internet 101 Movie storage means 102 GUI storage means

Claims (8)

A video receiving device that receives a video from a video server holding a video file via a network and a proxy server,
Display means for displaying an image distributed from the video server and a GUI (Graphical User Interface) screen;
Communication means for transmitting and receiving commands and image data to and from the video server via the network and the proxy server;
When a request to reproduce the desired video file is received from a user, a response by the video server when the user requests a part of the desired video file to the video server via the communication means. First command transmission means for transmitting a first video request command for requesting at least a header;
The response command from the video server corresponding to the first video request command transmitted by the first command transmission means is analyzed, and the response command becomes a response command that matches the first video request command. A determination means for determining whether or not,
After the determination means determines whether the response command is a response command that matches the first video request command, the video that the user desires to the video server via the communication means Second command transmission means for transmitting a second video request command for requesting a file,
When it is determined by the determining means that the response command does not match, the display means does not display the GUI information on which the special reproduction operation can be performed on the display means when the moving image file desired by the user is reproduced. A moving image receiving apparatus characterized by that. When the determination means determines that the response command is not a response command that matches the first video request command, transmission of GUI information that cannot be used for the special playback operation becomes a matching response command. GUI request means for transmitting a GUI information transmission request for requesting transmission of GUI information capable of special reproduction operation to the video server via the communication means when it is determined that the special reproduction operation is possible. The moving image receiving apparatus according to claim 1. The moving picture receiving device further includes GUI information holding means for holding GUI information related to a moving picture received from the moving picture server, wherein in the determination means, the response command matches the first moving picture request command. GUI information holding means for GUI information incapable of special playback operation when it is determined that the response information is not, and GUI information capable of special playback operation in the case of determining that the response command matches. The moving image receiving apparatus according to claim 1, wherein the moving image receiving apparatus is extracted from the display unit and displayed on the display unit. 4. The moving image according to claim 1, wherein a protocol used for communication in the communication means is HTTP (Hyper Transfer Protocol), and the first moving image request command is an HTTP HEAD command. 5. Receiver device. A screen display method in a video receiving device that receives a video from a video server holding a video file via a network and a proxy server,
A display step of displaying an image distributed from the moving image server and a GUI (Graphical User Interface) screen;
A communication step for transmitting and receiving commands and image data to and from the video server via the network and the proxy server;
In the communication step, when a reproduction request for the video file desired by the user is accepted, a header of a response by the video server when the user requests a part of the video file desired by the user to the video server A first command transmission step of transmitting a first video request command for requesting at least
The response command from the video server corresponding to the first video request command transmitted in the first command transmission step is analyzed, and the response command becomes a response command that matches the first video request command. A determination step for determining whether or not,
In the determining step, after determining whether or not the response command is a response command that matches the first moving image request command, in the communication step, the moving image desired by the user is transmitted to the moving image server. A second command transmission step of transmitting a second video request command for requesting a file,
If it is determined in the determining step that the response command is not a response command that matches the first moving image request command, the special reproduction is performed in the display step when the moving image file desired by the user is reproduced. A GUI display method in a moving picture receiving apparatus, characterized in that the GUI information that can be operated is not displayed on the screen. If it is determined in the determining step that the response command is not a response command that matches the first moving image request command, transmission of GUI information that cannot be used for special playback operation becomes a matching response command. A GUI request step for transmitting a GUI information transmission request for requesting transmission of GUI information capable of special reproduction operation to the moving image server when the communication step is determined. A GUI display method in the moving picture receiving apparatus according to claim 5. A GUI information holding step for holding GUI information related to a moving image received from the moving image server; and determining in the determining step that the response command is not a response command that matches the first moving image request command. If it is determined that the GUI information held in the GUI information holding step and the special playback operation is impossible is a matching response command, the special playback operation held in the GUI information holding step. 6. The GUI display method in the moving image receiving apparatus according to claim 5, wherein GUI information that can be displayed is displayed in the display step. 8. The moving image according to claim 5, wherein a protocol used for communication in the communication step is HTTP (Hyper Transfer Protocol), and the first moving image request command is an HTTP HEAD command. GUI display method in receiving apparatus.