CN104506508A - File information synchronizing method and related equipment - Google Patents

Abstract

A file information synchronization method and related equipment. The embodiment of the present invention discloses a method for synchronizing file information, comprising: obtaining the storage path of the media file currently played by the media renderer from the media server; and sending the storage path of the currently played media file to the media renderer , so that the media renderer sends the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can The path acquires the resource information of the currently played media file from the media server. The embodiment of the invention also discloses a media controller and a media renderer. By adopting the embodiment of the present invention, resource information of media files in multiple media controllers can be synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

Description

A file information synchronization method and related equipment

technical field

The invention relates to the field of electronic technology, in particular to a method for synchronizing file information and related equipment.

Background technique

At present, DLNA (Digital Living Network Alliance, terminal interconnection solution) technology has been widely developed, and more and more media devices, audio-visual terminals or playback platforms support the DLNA protocol. This technology allows devices to discover devices with other functions when they are connected to the network, and view and share media resources in the server to a player for playback. The types of DLNA devices mainly include media players, media renderers, media servers and media controllers.

DLNA defines a push mode, which requires at least 3 devices in the network, media renderer, media server and media controller. Wherein, the media controller serves as a control point, can discover the other two devices, and can browse the media files in the media server, and push the media files to the media renderer for playback. Both the media server and the media renderer support the access control of multiple media controllers, but currently they cannot share or synchronize the contents of multiple media controllers very well. For example, a media controller accesses the media file of the media server and browses the media If the resource information of the media file is pushed to the media renderer for playback, other media controllers in the network segment cannot obtain the resource information of the media file being played, and the resource information of the media file cannot be synchronized.

Contents of the invention

Embodiments of the present invention provide a file information synchronization method and related equipment. Resource information of media files in multiple media controllers can be synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

An embodiment of the present invention provides a method for synchronizing file information, including:

Specify the media controller to obtain the storage path of the media file currently played by the media renderer from the media server;

The specified media controller sends the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All associated media controllers, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all the media controllers include The designated media controller and other media controllers.

Wherein, before obtaining the storage path of the media file currently played by the media renderer from the media server, it also includes:

The designated media controller acquires resource information of media files from the media server;

The specified media controller sends the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file to play .

Wherein, before obtaining the storage path of the media file currently played by the media renderer from the media server, it also includes:

The designated media controller subscribes to the item control service of the media renderer, wherein the other media controllers subscribe to the item control service of the media renderer at the same time.

The embodiment of the present invention provides another file information synchronization method, including:

The media renderer receives the storage path of the media file currently played by the media renderer obtained from the media server and sent by the designated media controller;

The media renderer sends the storage path of the currently played media file to all the media controllers associated with the media renderer, so that all the media controllers can select from the storage path of the currently played media file according to the storage path of the currently played media file The resource information of the currently played media file is obtained from the media server, and all the media controllers include the designated media controller and other media controllers.

Wherein, before receiving the storage path of the media file currently played by the media renderer obtained from the media server and sent by the specified media controller, it also includes:

The media renderer receives the resource information of the media file sent by the specified media controller;

The media renderer obtains the media file from the media server to play according to the resource information of the media file.

Wherein, before sending the storage path of the currently played media file to all media controllers associated with the media renderer, it also includes:

The media renderer compares the storage path of the currently played media file with the currently recorded storage path of the previously played media file;

If the storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, the media renderer executes the sending of the storage path of the currently played media file Steps to all media controllers associated with the media renderer.

Correspondingly, an embodiment of the present invention provides a media controller, including:

The path obtaining module is used to obtain the storage path of the media file currently played by the media renderer from the media server;

A path sending module, configured to send the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All associated media controllers, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all the media controllers include Specifies the media controller as well as other media controllers.

Wherein, the media controller also includes:

An information obtaining module, configured to obtain resource information of media files from the media server;

An information sending module, configured to send the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file for playing .

Wherein, the media controller also includes:

A service subscription module, configured to subscribe the media renderer to the item control service, wherein the other media controllers subscribe to the media renderer to the item control service at the same time.

Correspondingly, an embodiment of the present invention provides a media renderer, including:

The path receiving module is used to receive the storage path of the media file currently played by the media renderer obtained from the media server and sent by the designated media controller;

A path sending module, configured to send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers The resource information of the currently played media file is acquired from the media server, and all the media controllers include the designated media controller and other media controllers.

Wherein, the media renderer also includes:

An information receiving module, configured to receive the resource information of the media file sent by the specified media controller;

The information playing module is used to obtain the media file from the media server and play it according to the resource information of the media file.

Wherein, the path sending module is also used to compare the storage path of the currently played media file with the storage path of the currently recorded media file played last time; and if the storage path of the currently played media file If the storage path of the currently recorded media file played last time is different, the step of sending the storage path of the currently played media file to all media controllers associated with the media renderer is performed.

Implement the embodiment of the present invention, specify that the media controller first obtains the storage path of the media file currently played by the media renderer from the media server; then sends the storage path of the currently played media file to the media renderer, so that the media renderer will The storage path of the currently playing media file is sent to all media controllers associated with the media renderer, so that all media controllers can obtain the resource information of the currently playing media file from the media server according to the storage path of the currently playing media file, and can synchronize Resource information of media files in multiple media controllers, so that multiple media controllers can perform playback control operations on the same playlist.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the flow chart of the first embodiment of a kind of file information synchronization method proposed by the present invention;

Fig. 2 is a flowchart of another embodiment of a method for synchronizing file information proposed by the present invention;

FIG. 3 is a schematic structural diagram of a media controller proposed by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a media renderer proposed by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a file information synchronization system proposed by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the present invention, the media server can include set-top box, PVR (Personal Video Recorder, personal video recording), PCS (Personal Cloud Storage, personal cloud storage), stereo and home theater with hard disk, broadcast tuner or video image capture device (such as cameras, video cameras or mobile phones), etc. The media controller can be a remote controller or a mobile phone with a media controller function. Media renderers may include televisions, audio-video receivers, video displays, or wireless music speakers, among others.

Please refer to FIG. 1 , which is a flowchart of a first embodiment of a method for synchronizing file information proposed by the present invention. As shown in the figure, the method in the embodiment of the present invention includes:

S101, designate the media controller to acquire the storage path of the media file currently played by the media renderer from the media server.

In a specific implementation, the designated media controller first subscribes to the media renderer for the item control service, wherein other media controllers subscribe to the media renderer for the item control service at the same time. Then the designated media controller browses the resource information of a certain media file in the media server, and obtains the resource information of the media file, and sends the resource information of the media file to the media renderer, so that the media renderer Play the media file. At this time, the specified media controller can obtain the storage path of the media file currently played by the media renderer from the media server. Wherein, the storage path of the media file may include an identifier UUID (Universally Unique Identifier, universally unique identifier code) of the media server and an identifier ObjectID of the media file.

S102. The specified media controller sends the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media All media controllers associated with the renderer, so that all media controllers obtain resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all media controllers Controllers include the designated media controller and other media controllers.

In a specific implementation, the specified media controller may call a pre-subscribed item control service, such as the X_SetNowplayingDmsContainerId function, to send the storage path of the currently played media file to the media renderer.

In addition, after the media renderer receives the storage path of the currently played media file, it compares the storage path of the currently played media file with the currently recorded storage path of the previously played media file; if the The storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, then the storage path of the currently played media file is sent to all media controllers associated with the media renderer device, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file; if the storage path of the currently played media file If the storage path of the previously played media file currently recorded is the same, it means that the media file played by the media renderer last time is the same as the currently played media file, so all media controllers have saved the currently played media file The storage path of the currently played media file does not need to be sent to all media controllers. Wherein, the media renderer may record the storage path of the previously played media file through a predefined state variable such as: X_NowplayingDmsContainerId.

After all the media controllers receive the storage paths of the currently played media files, all the media controllers respectively compare the received storage paths of the currently played media files with the currently accessed media files in the media The storage path in the server is compared, if the storage path of the currently played media file is different from the storage path of the currently accessed media file in the media server, then according to the storage path of the currently played media file from the The media server acquires the resource information of the currently played media file, so as to realize the synchronization of the resource information of the media files in all the media controllers. If the storage path of the currently played media file is the same as the storage path of the currently accessed media file in the media server, the media controller has saved the resource information of the currently played media file, and does not need to be retrieved from the media server. The resource information of the currently played media file is reacquired.

In the embodiment of the present invention, the specified media controller first obtains the storage path of the media file currently played by the media renderer from the media server; then sends the storage path of the currently played media file to the media renderer, so that the media renderer Send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file. The resource information of the media files in multiple media controllers is synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

Please refer to FIG. 2 , which is a flowchart of a second embodiment of a method for synchronizing file information proposed by the present invention. As shown in the figure, the method in the embodiment of the present invention includes:

S201. A designated media controller obtains resource information of a media file from the media server.

In a specific implementation, the designated media controller first subscribes to the media renderer for the item control service, wherein other media controllers subscribe to the media renderer for the item control service at the same time. Then specify the media controller to browse the resource information of a media file in the media server and obtain the resource information of the media file

S202, designate the media controller to send the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file to play .

S203. The media renderer acquires the media file from the media server according to the resource information of the media file and plays it.

S204, specifying the media controller to obtain the storage path of the media file currently played by the media renderer from the media server. Wherein, the storage path of the media file may include an identifier UUID (Universally Unique Identifier, universally unique identifier code) of the media server and an identifier ObjectID of the media file.

S205, designate the media controller to send the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All associated media controllers.

In a specific implementation, the specified media controller may call a pre-subscribed item control service, such as the X_SetNowplayingDmsContainerId function, to send the storage path of the currently played media file to the media renderer.

S206. The media renderer sends the storage path of the currently played media file to all media controllers associated with the media renderer, so that all the media controllers can obtain the storage path of the currently played media file according to the storage path of the currently played media file. The resource information of the currently played media file is obtained from the media server.

In a specific implementation, after the media renderer receives the storage path of the currently played media file, it compares the storage path of the currently played media file with the storage path of the currently recorded media file played last time; if The storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, then the storage path of the currently played media file is sent to all associated media renderers. Media controllers, so that all media controllers obtain the resource information of the currently played media files from the media server according to the storage path of the currently played media files; If the storage path is the same as the storage path of the previously played media file currently recorded, it means that the media file played by the media renderer last time is the same as the currently played media file, so all media controllers have saved the currently played media The storage path of the file does not need to send the storage path of the currently playing media file to all media controllers. Wherein, the media renderer may record the storage path of the previously played media file through a predefined state variable such as: X_NowplayingDmsContainerId.

In addition, after all the media controllers receive the storage paths of the currently played media files, all the media controllers respectively combine the received storage paths of the currently played media files with the currently accessed media files Comparing the storage path in the media server, if the storage path of the currently played media file is different from the storage path of the currently accessed media file in the media server, then according to the storage path of the currently played media file from The media server acquires the resource information of the currently played media file, so as to realize the synchronization of the resource information of the media files in all the media controllers. If the storage path of the currently played media file is the same as the storage path of the currently accessed media file in the media server, the media controller has saved the resource information of the currently played media file, and does not need to be retrieved from the media server. The resource information of the currently played media file is reacquired.

In the embodiment of the present invention, the specified media controller first obtains the storage path of the media file currently played by the media renderer from the media server; then sends the storage path of the currently played media file to the media renderer, so that the media renderer Send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file. The resource information of the media files in multiple media controllers is synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

Please refer to FIG. 3 . FIG. 3 is a schematic structural diagram of a media controller proposed by an embodiment of the present invention. As shown in the figure, the media controller in the embodiment of the present invention includes:

The service subscription module 301 is configured to subscribe the media renderer to the item control service, wherein the other media controllers subscribe to the media renderer to the item control service at the same time.

An information obtaining module 302, configured to obtain resource information of media files from the media server.

An information sending module 303, configured to send the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file to perform play.

The path acquisition module 304 is configured to acquire the storage path of the media file currently played by the media renderer from the media server. Wherein, the storage path of the media file may include an identifier UUID (Universally Unique Identifier, universally unique identifier code) of the media server and an identifier ObjectID of the media file.

Path sending module 305, configured to send the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All media controllers associated with the server, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all the media controllers Including the designated media controller and other media controllers.

In a specific implementation, the specified media controller may call a pre-subscribed item control service, such as the X_SetNowplayingDmsContainerId function, to send the storage path of the currently played media file to the media renderer.

In addition, after the media renderer receives the storage path of the currently played media file, it compares the storage path of the currently played media file with the currently recorded storage path of the previously played media file; if the The storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, then the storage path of the currently played media file is sent to all media controllers associated with the media renderer device, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file; if the storage path of the currently played media file The same as the storage path of the previously played media file currently recorded, it means that the media file played by the media renderer last time is the same as the currently played media file, so all media controllers have saved the currently played media file Storage path, no need to send the storage path of the currently playing media file to all media controllers. Wherein, the media renderer may record the storage path of the previously played media file through a predefined state variable such as: X_NowplayingDmsContainerId.

After all the media controllers receive the storage paths of the currently played media files, all the media controllers respectively compare the received storage paths of the currently played media files with the currently accessed media files in the media The storage path in the server is compared, if the storage path of the currently played media file is different from the storage path of the currently accessed media file in the media server, then according to the storage path of the currently played media file from the The media server acquires the resource information of the currently played media file, so as to realize the synchronization of the resource information of the media files in all the media controllers. If the storage path of the currently played media file is the same as the storage path of the currently accessed media file in the media server, the media controller has saved the resource information of the currently played media file, and does not need to be retrieved from the media server. The resource information of the currently played media file is reacquired.

In the embodiment of the present invention, the specified media controller first obtains the storage path of the media file currently played by the media renderer from the media server; then sends the storage path of the currently played media file to the media renderer, so that the media renderer Send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file. The resource information of the media files in multiple media controllers is synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

Please refer to FIG. 4 , which is a schematic structural diagram of a media renderer proposed by an embodiment of the present invention. As shown in the figure, the media renderer in the embodiment of the present invention includes:

The information receiving module 401 is configured to receive the resource information of the media file sent by the specified media controller.

In a specific implementation, the designated media controller first subscribes to the media renderer for the item control service, wherein other media controllers subscribe to the media renderer for the item control service at the same time. Then the designated media controller browses the resource information of a certain media file in the media server, obtains the resource information of the media file, and sends the resource information of the media file to the media renderer.

The information playing module 402 is configured to acquire the media file from the media server and play it according to the resource information of the media file.

The path receiving module 403 is configured to receive the storage path of the media file currently played by the media renderer obtained from the media server and sent by the designated media controller.

In a specific implementation, when the media renderer plays the media file, the designated media controller may acquire the storage path of the media file currently played by the media renderer from the media server. Wherein, the storage path of the media file can include the identifier UUID (Universally Unique Identifier, Universally Unique Identifier) of the media server and the identifier ObjectID of the media file, and the storage path of the currently played media file is sent to the media renderer .

Path sending module 404, configured to send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can The path obtains the resource information of the currently playing media file from the media server, and the all media controllers include the specified media controller and other media controllers.

In a specific implementation, after the media renderer receives the storage path of the currently played media file, it compares the storage path of the currently played media file with the storage path of the currently recorded media file played last time; if The storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, then the storage path of the currently played media file is sent to all associated media renderers. Media controllers, so that all media controllers obtain the resource information of the currently played media files from the media server according to the storage path of the currently played media files; If the storage path is the same as the storage path of the previously played media file currently recorded, it means that the media file played by the media renderer last time is the same as the currently played media file, so all media controllers have saved the currently played media The storage path of the file does not need to send the storage path of the currently playing media file to all media controllers. Wherein, the media renderer may record the storage path of the previously played media file through a predefined state variable such as: X_NowplayingDmsContainerId.

In addition, after all the media controllers receive the storage paths of the currently played media files, all the media controllers respectively combine the received storage paths of the currently played media files with the currently accessed media files Comparing the storage path in the media server, if the storage path of the currently played media file is different from the storage path of the currently accessed media file in the media server, then according to the storage path of the currently played media file from The media server acquires the resource information of the currently played media file, so as to realize the synchronization of the resource information of the media files in all the media controllers. If the storage path of the currently played media file is the same as the storage path of the currently accessed media file in the media server, the media controller has saved the resource information of the currently played media file, and does not need to be retrieved from the media server. The resource information of the currently played media file is reacquired.

In the embodiment of the present invention, the specified media controller first obtains the storage path of the media file currently played by the media renderer from the media server; then sends the storage path of the currently played media file to the media renderer, so that the media renderer Send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers can obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file. The resource information of the media files in multiple media controllers is synchronized, so that multiple media controllers can perform playback control operations on the same playlist.

Please refer to FIG. 5 , which is a schematic structural diagram of a file information synchronization system proposed by an embodiment of the present invention. As shown in the figure, the file information synchronization system in the embodiment of the present invention includes:

The media controller 300 is configured to acquire the storage path of the media file currently played by the media renderer from the media server; and send the storage path of the currently played media file to the media renderer, so that the media renderer The server sends the storage path of the currently played media file to all media controllers associated with the media renderer, so that all the media controllers retrieve the information from the media server according to the storage path of the currently played media file The resource information of the currently played media file is acquired, and all the media controllers include the specified media controller and other media controllers.

The media renderer 400 is configured to receive the storage path of the media file currently played by the media renderer obtained from the media server sent by the designated media controller; and send the storage path of the currently played media file to the All media controllers associated with the media renderer, so that all media controllers acquire resource information of the currently played media file from the media server according to the storage path of the currently played media file, the All media controllers include the designated media controller and other media controllers.

It should be noted that, for the sake of simple description, all the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because according to the present invention, certain steps can be carried out in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Flash disk, read-only memory (English: Read-Only Memory, abbreviated: ROM), random access device (English: Random Access Memory, abbreviated: RAM), magnetic disk or optical disc, etc.

The content downloading method provided by the embodiment of the present invention and related equipment and systems have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

Claims (12)

1. A file information synchronization method, characterized in that the method comprises: Specify the media controller to obtain the storage path of the media file currently played by the media renderer from the media server; The specified media controller sends the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All associated media controllers, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all the media controllers include The designated media controller and other media controllers. 2. The method according to claim 1, wherein, before obtaining the storage path of the media file currently played by the media renderer from the media server, further comprising: The designated media controller acquires resource information of media files from the media server; The specified media controller sends the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file to play . 3. The method according to claim 1, wherein, before obtaining the storage path of the media file currently played by the media renderer from the media server, further comprising: The designated media controller subscribes to the item control service of the media renderer, wherein the other media controllers subscribe to the item control service of the media renderer at the same time. 4. A file information synchronization method, characterized in that the method comprises: The media renderer receives the storage path of the media file currently played by the media renderer obtained from the media server and sent by the designated media controller; The media renderer sends the storage path of the currently played media file to all the media controllers associated with the media renderer, so that all the media controllers can select from the storage path of the currently played media file according to the storage path of the currently played media file The resource information of the currently played media file is obtained from the media server, and all the media controllers include the designated media controller and other media controllers. 5. The method according to claim 4, wherein before receiving the storage path of the media file currently played by the media renderer obtained from the media server and sent by the designated media controller, further comprising: The media renderer receives the resource information of the media file sent by the specified media controller; The media renderer obtains the media file from the media server to play according to the resource information of the media file. 6. The method according to claim 4, wherein before sending the storage path of the currently played media file to all media controllers associated with the media renderer, further comprising: The media renderer compares the storage path of the currently played media file with the currently recorded storage path of the previously played media file; If the storage path of the currently played media file is different from the storage path of the currently recorded media file played last time, the media renderer executes the sending of the storage path of the currently played media file Steps to all media controllers associated with the media renderer. 7. A media controller, characterized in that, the media controller comprises: The path obtaining module is used to obtain the storage path of the media file currently played by the media renderer from the media server; A path sending module, configured to send the storage path of the currently played media file to the media renderer, so that the media renderer sends the storage path of the currently played media file to the media renderer All associated media controllers, so that all media controllers obtain the resource information of the currently played media file from the media server according to the storage path of the currently played media file, and all the media controllers include Specifies the media controller as well as other media controllers. 8. The media controller of claim 7, wherein the media controller further comprises: An information obtaining module, configured to obtain resource information of media files from the media server; An information sending module, configured to send the resource information of the media file to the media renderer, so that the media renderer obtains the media file from the media server according to the resource information of the media file for playing . 9. The media controller of claim 7, wherein the media controller further comprises: A service subscription module, configured to subscribe the media renderer to the item control service, wherein the other media controllers subscribe to the media renderer to the item control service at the same time. 10. A media renderer, characterized in that the media renderer comprises: The path receiving module is used to receive the storage path of the media file currently played by the media renderer obtained from the media server and sent by the specified media controller; A path sending module, configured to send the storage path of the currently played media file to all media controllers associated with the media renderer, so that all media controllers The resource information of the currently played media file is acquired from the media server, and all the media controllers include the designated media controller and other media controllers. 11. The media renderer according to claim 10, further comprising: An information receiving module, configured to receive the resource information of the media file sent by the specified media controller; The information playing module is used to acquire the media file from the media server and play it according to the resource information of the media file. 12. The media renderer of claim 10, wherein The path sending module is also used to compare the storage path of the currently played media file with the storage path of the currently recorded media file played last time; and if the storage path of the currently played media file is the same as the If the storage path of the previously played media file currently recorded is different, the step of sending the storage path of the currently played media file to all media controllers associated with the media renderer is performed.