CN104038561A - Method and device for sharing media file - Google Patents

Abstract

The invention provides a method and device for sharing a media file. The method for sharing the media file comprises the steps that a first DMP receives a media file pushing message sent by a second DMP through a DMS, and the media file pushing message comprises a media file name; the first DMP is in wireless display connection with the DMS; the first DMP receives the media file which is transmitted by the DMS through the built wireless display connection and corresponds to the name of the media file. Media file sharing between different DMPs can be achieved by means of wireless display signals, and the TCP/IP network bandwidths are effectively saved.

Description

Media file sharing method and device

technical field

The invention relates to multimedia technology, in particular to a method and device for sharing media files.

Background technique

In the fields of consumer electronics, mobile communications, and personal computers, users can conveniently enjoy various media information, such as photos, music, and videos, from different devices in the home. The Digital Living Network Alliance (DLNA for short) adopted the UPnP AV (Universal Plug and Play, Audio/Video, Universal Plug and Play, audio and video) standard, and defined a new set of device types on this basis , realizing the transmission and sharing of media content between home network devices. DLNA multi-screen technology is to integrate the Internet, telecommunication network and TV broadcasting network into a seamless and interoperable network to realize resource sharing.

With the continuous development of triple play technology, there are more and more shared applications. In the process of realizing the interconnection and interoperability of the Internet, telecommunication network and TV broadcasting network, different playback devices can share media resources. For example, if a viewer of a digital media player (Digital Media Player, DMP for short) 1 wants to push the media file to be watched to DMP2, the usual method is that DMP1 sends a digital media file through a digital media server (Digital Media Server, DMS for short). DMP2 sends a media file push message, DMP2 will accept the push message of the media file and return it to DMS, and then DMS compresses and codes the media file and transmits the compressed coded media file to DMP2 through the wired network, and the media file is transferred. The network bandwidth is the network bandwidth that needs to go through the TCP/IP (Transmission Control Protocol/Internet Protocol) channel. After receiving the media file, DMP2 decodes the media file and displays the decoded content .

However, in the above-mentioned process of transmitting media files using DLNA technology, media files are transmitted between devices such as DMP and DMS through a wired network, and the media file transmission process needs to occupy TCP/IP network bandwidth. When media files are frequently exchanged between devices, the bandwidth of the TCP/IP network will be seriously occupied, which cannot meet the transmission requirements.

Contents of the invention

Embodiments of the present invention provide a media file sharing method and device to solve the problem of serious TCP/IP network bandwidth occupation in the existing DLNA technology.

In a first aspect, an embodiment of the present invention provides a method for sharing media files, including:

The first digital media player DMP receives the media file push message sent by the second DMP through the digital media server DMS, and the media file push message includes the media file name;

The first DMP establishes a wireless display connection with the DMS;

The first DMP receives the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection.

With reference to the first aspect, in the first possible implementation manner of the first aspect, before the first DMP establishes a wireless display connection with the DMS, the method further includes:

The first DMP judges whether it supports the wireless display connection function;

If yes, the first DMP executes the step of establishing a wireless display connection with the DMS.

With reference to the first aspect or the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, establishing a wireless display connection between the first DMP and the DMS includes:

The first DMP establishes a wireless display connection based on the Wireless Home Digital Interface WHDI with the DMS; or

The first DMP establishes a wireless display connection based on ultra-wideband UWB with the DMS; or

The first DMP establishes a wireless display connection based on the wireless display technology WiDi with the DMS; or

The first DMP establishes a Wireless HD-based wireless display connection with the DMS.

With reference to the first aspect and any of the first to second possible implementations of the first aspect, in a third possible implementation of the first aspect, the first DMP establishes a wireless display connection with the DMS After that, and before the first DMP receives the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection, the method further includes:

The first DMP and the DMS perform high-bandwidth digital content protection technology HDCP authentication.

In a second aspect, the embodiment of the present invention provides a method for sharing media files, including:

The digital media server DMS sends a media file push message to the first digital media player DMP, and the media file push message is sent to the first DMP by the second DMP through the DMS, and the media file push message includes a media file name;

The DMS establishes a wireless display connection with the first DMP;

The DMS transmits the media file corresponding to the media file name to the first DMP through the established wireless display connection.

With reference to the second aspect, in a first possible implementation manner of the second aspect, establishing a wireless display connection between the DMS and the first DMP includes:

The DMS establishes a wireless display connection based on the Wireless Home Digital Interface WHDI with the first DMP; or

The DMS establishes a wireless display connection based on ultra-wideband UWB with the first DMP; or

The DMS establishes a wireless display connection based on the wireless display technology WiDi with the first DMP; or

The DMS establishes a Wireless HD-based wireless display connection with the first DMP.

With reference to the second aspect or the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, after the DMS establishes a wireless display connection with the first DMP, and in the Before the DMS transmits the media file corresponding to the media file name to the first DMP through the established wireless display connection, the method further includes:

The DMS and the first DMP perform high-bandwidth digital content protection technology HDCP authentication.

In a third aspect, an embodiment of the present invention provides a media file sharing device, which is included in a first digital media player DMP, and the device includes:

The first receiving module is used to receive the media file push message sent by the second DMP through the digital media server DMS, and the media file push message includes the name of the media file;

A connection module, configured to establish a wireless display connection with the DMS;

The second receiving module is configured to receive the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection.

In combination with the third aspect, in the first possible implementation manner of the third aspect, it also includes:

A judging module, configured to judge whether the first DMP supports a wireless display connection function before the connection module establishes a wireless display connection with the DMS;

The connection module is specifically configured to establish a wireless display connection with the DMS if the judging module judges that the first DMP supports a wireless display connection function.

In combination with the third aspect or the first possible implementation manner of the third aspect, in the second possible implementation manner of the third aspect, the connection module is specifically used for:

Establishing a wireless display connection based on the Wireless Home Digital Interface (WHDI) with the DMS; or

Establishing an ultra-wideband UWB-based wireless display connection with the DMS; or

Establishing a wireless display connection based on the wireless display technology WiDi with the DMS; or

A wireless display connection based on WirelessHD is established with the DMS.

Combining the third aspect and any one of the first to second possible implementation modes of the third aspect, the third possible implementation mode of the third aspect also includes:

An authentication module, configured to receive, at the second receiving module, the information corresponding to the media file name transmitted by the DMS through the established wireless display connection after the connection module establishes a wireless display connection with the DMS HDCP authentication is performed with the DMS prior to media files.

In a fourth aspect, an embodiment of the present invention provides a media file sharing device, which is included in a digital media server DMS, and the device includes:

A sending module, configured to send a media file push message to the first digital media player DMP, the media file push message is sent by the second DMP to the first DMP through the DMS, and the media file push message includes media file name;

a connection module, configured to establish a wireless display connection with the first DMP;

A transmission module, configured to transmit the media file corresponding to the media file name to the first DMP through the wireless display connection established by the connection module.

With reference to the fourth aspect, in the first possible implementation manner of the fourth aspect, the connection module is specifically used for:

establishing a wireless display connection based on the Wireless Home Digital Interface WHDI with the first DMP; or

establishing an ultra-wideband UWB-based wireless display connection with the first DMP; or

Establishing a wireless display connection based on the wireless display technology WiDi with the first DMP; or

Establishing a Wireless HD-based wireless display connection with the first DMP.

In combination with the fourth aspect or the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect further includes:

An authentication module, configured to transmit, after the connection module establishes a wireless display connection with the first DMP, to the first DMP through the established wireless display connection, the transmission module corresponding to the media file name Before the media files, conduct high-bandwidth digital content protection technology HDCP authentication with the first DMP.

In the embodiment of the present invention, the first DMP receives the media file push message sent by the second DMP through the DMS, the media file push message includes the name of the media file, the first DMP establishes a wireless display connection with the DMS, and the first The DMP receives the media file corresponding to the media file name transmitted by the DMS, that is, the first DMP and the DMS transmit the media file through the established wireless display connection, so that the wireless display signal can be used to realize the media file between different DMPs Sharing effectively saves TCP/IP network bandwidth.

Description of drawings

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

Fig. 1 is the flowchart of Embodiment 1 of the media file sharing method of the present invention;

Fig. 2 is the flow chart of the second embodiment of the media file sharing method of the present invention;

Fig. 3 is a protocol stack diagram of the media file sharing method of the present invention;

4 is a flow chart of Embodiment 3 of the media file sharing method of the present invention;

5 is a schematic structural diagram of Embodiment 1 of a media file sharing device according to the present invention;

6 is a schematic structural diagram of Embodiment 2 of the media file sharing device of the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 1 of the digital media player of the present invention;

FIG. 8 is a schematic structural diagram of Embodiment 1 of a digital media server according to the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The digital media server (Digital Media Server, referred to as DMS) involved in the embodiment of the present invention is used for storing media files such as picture, audio frequency, video, DMS can be smart mobile phone, panel computer, digital camera, portable computer etc. for example can generate or store Home network devices or mobile handheld devices for media content such as pictures, music, and video programs.

The digital media player (Digital Media Player, referred to as DMP) involved in the embodiment of the present invention is used to play the equipment of media files such as picture, audio frequency, video, for every kind of DMP, all have its specific equipment capacity, comprise screen size, Screen resolution, etc., and supported decoding media formats. Different types of DMPs have different device capabilities and supported media formats. For example, a DMP can be a home network device or a mobile handheld device capable of playing media content such as pictures, music, and video programs, such as a smart phone, a tablet computer, a portable computer, and a TV.

The various embodiments of the present invention can be specifically applied to Digital Living Network Alliance (Digital Living Network Alliance, DLNA for short) technology.

Fig. 1 is the flow chart of embodiment one of the media file sharing method of the present invention, as shown in Fig. 1, the method of this embodiment may include:

Step 11. The first DMP receives the media file push message sent by the second DMP through the DMS, and the media file push message includes the name of the media file.

Wherein, the media file push message may also include information that can be used to obtain the media file, such as a uniform resource locator (Uniform Resource Locator, URL for short) of the media file. Wherein, various media files are stored in the DMS, and the media files corresponding to the names of the media files are stored in the DMS. The first DMP receives the media file push message sent by the second DMP, and the first DMP may obtain the media file from the DMS according to the media file name carried in the media file push message.

Step 12: The first DMP establishes a wireless display connection with the DMS.

The wireless display connection is a wireless display connection established on a wireless display interface. The wireless display connection has the characteristics of high bandwidth and low delay.

Step 13. The first DMP receives the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection.

Wherein, during the process of transmitting media files through the wireless display connection established in step 12, the bandwidth of the TCP/IP network will not be occupied.

Optionally, after the first DMP establishes a wireless display connection with the DMS, high-bandwidth digital content protection (High-bandwidth Digital Content Protection, HDCP for short) authentication may be performed, that is, the first DMP and the DMS DMS conducts HDCP certification. After passing the HDCP authentication, the first DMP may receive the media file transmitted by the DMS through the established wireless display connection.

Further, before the first DMP establishes a wireless display connection with the DMS, the first DMP can judge whether it supports the wireless display connection function; if it supports, the first DMP executes establishing a wireless display connection with the DMS Steps for displaying the connection; if not supported, the first DMP can establish a TCP/IP connection with the DMS.

Wherein, the first DMP establishes a wireless display connection with the DMS, which may specifically be: the first DMP establishes a wireless display connection based on a Wireless Home Digital Interface (WHDI for short) with the DMS; or The first DMP and the DMS establish a wireless display connection based on Ultra Wideband (UWB for short); and the first DMP and the DMS establish a wireless display connection based on a wireless display technology (Wireless Display, short for short). WiDi) wireless display connection; it may also be that the first DMP establishes a wireless high definition (Wireless High Definition, WirelessHD for short) based wireless display connection with the DMS. In addition, the wireless display connection established between the first DMP and the DMS may also be other wireless display connections that do not occupy the bandwidth of the TCP/IP network.

In this embodiment, the first DMP receives a media file push message sent by the second DMP through the DMS, the media file push message includes the name of the media file, the first DMP establishes a wireless display connection with the DMS, and the first DMP The media file corresponding to the media file name transmitted by the DMS is received through the wireless display connection, that is, the DMS transmits the media file to the first DMP through the established wireless display connection, that is, the second DMP can pass through the wireless display connection. The media file is transmitted to the first DMP, so that the wireless display signal is used to realize the sharing of the media file between different DMPs, effectively saving the TCP/IP network bandwidth.

Fig. 2 is the flow chart of embodiment two of the media file sharing method of the present invention, as shown in Fig. 2, the method of this embodiment may include:

Step 21: The DMS sends a media file push message to the first DMP, the media file push message is sent by the second DMP to the first DMP through the DMS, and the media file push message includes a media file name.

Step 22, the DMS establishes a wireless display connection with the first DMP.

Step 23: The DMS transmits the media file corresponding to the media file name to the first DMP through the established wireless display connection.

Optionally, after the DMS establishes the wireless display connection with the first DMP, HDCP authentication may also be performed, that is, the DMS performs HDCP authentication with the first DMP. After passing the HDCP authentication, the DMS can transmit media files to the first DMP through the established wireless display connection.

Wherein, the DMS establishes a wireless display connection with the first DMP, which may specifically be: the DMS establishes a WHDI-based wireless display connection with the first DMP; it may also be that the DMS and the first DMP Establishing a UWB-based wireless display connection; it may also be that the DMS establishes a WiDi-based wireless display connection with the first DMP; it may also be that the DMS establishes a WirelessHD-based wireless display connection with the first DMP. In addition, the wireless display connection established between the DMS and the first DMP may also be other wireless display connections that do not occupy the bandwidth of the TCP/IP network.

It should be noted that the sequence of step 21 and step 22 is not limited by this, that is, step 22 may be executed first and then step 21 may be executed. For example: after establishing a wireless display connection and transmitting media files through the wireless display connection, the second DMP still has media files that need to be pushed to the first DMP, so that media files can be pushed and transmitted on the basis of the existing wireless display connection .

In this embodiment, the DMS sends a media file push message to the first DMP, and the media file push message is sent by the second DMP to the first DMP through the DMS, and the media file push message includes a media file name, so The DMS establishes a wireless display connection with the first DMP, and the DMS transmits the media file corresponding to the media file name to the first DMP through the wireless display connection. The media files in the second DMP are transmitted to the first DMP, so as to realize the sharing of media files between different DMPs by using the wireless display connection, and effectively save the wired network bandwidth.

Fig. 3 is a protocol stack diagram of the media file sharing method of the present invention. According to the specific description of the two embodiments of Fig. 1 and Fig. 2, in order to understand the embodiment of the present invention more clearly, Fig. 3 is used to supplement Fig. 1 and Fig. 2 . Different from the traditional DLNA standard protocol stack, as shown in Figure 3, the DLNA protocol stack diagram of this embodiment adds a control item in the media transport layer (Hypertext transfer protocol (Hypertext transfer protocol, referred to as HTTP)), and increases Wireless display connection options. This control item is used to obtain the device information of each media device and determine the transmission channel of the media stream according to the device discovery control layer, that is, if the media device has a wireless display interface, the media stream will be transmitted through the wireless display connection, and if the media If the device does not have a wireless display interface, the media stream will be transmitted through the wireless network 802.11n (WiFi) or wired network (Ethernet) after passing through the TCP/IP channel. Among them, the wireless display connection is a low-latency transmission channel with an independent transmission signal that does not occupy the bandwidth of the TCP/IP network. The wireless display connection may specifically be WHDI, UWB, WiDi, or WirelessHD. Due to the change of the protocol stack, in the DLNA scenario, in the process of transferring media files between different devices, the network interconnection no longer only depends on the wired network (Ethernet) or the wireless network 802.11n (WiFi). The media file transmission process needs to go through the TCP/IP channel. When there are many interactive media files, the network bandwidth will be seriously occupied. However, in this implementation, the network interconnection and file transmission are performed through the wireless display connection. In the process, the independent transmission signal will not pass through the TCP/IP channel, which can effectively save the network bandwidth occupied by the data transmission process in the traditional network. When there are many interactive media files, it can effectively reduce the transmission delay and improve the user experience.

Fig. 4 is the flowchart of the third embodiment of the media file sharing method of the present invention. This embodiment includes two different DMPs (DMP1, DMP2) and one DMS. This embodiment uses WHDI-based wireless display connection for illustration, as shown in FIG. 4, the method of this embodiment may include:

S301: DMP1 sends a media file push message to DMP2 through the DMS.

Wherein, the push message includes information such as the name of the media file and the uniform resource locator (Uniform Resource Locator, URL) of the media file.

S302: DMP2 judges whether it supports a wireless display connection function. If it is supported, execute S303, and if not, execute S304.

S303: DMP2 establishes a wireless display connection with the DMS.

Specifically, the wireless display connection may be a WHDI-based wireless display connection.

Optionally, after the wireless display connection is established, S305 may also be executed.

S304: DMP2 establishes a TCP/IP network connection with the DMS.

S305: The DMP2 performs HDCP authentication interaction with the DMS.

After the HDCP authentication is passed, S306 is executed.

S306: The DMS sends the media file corresponding to the media file name to the DMP2 through the established wireless display connection.

S307: After receiving the media file sent by the DMS, the DMP2 plays the media file.

That is, media files are transmitted through the TCP/IP network. After DMP2 transmits media files through the TCP/IP network, DMP2 plays and displays the media files.

In this embodiment, DMP1 sends a media file push message to DMP2 through DMS, and DMP2 judges whether it supports the wireless display connection function. If it supports, DMP2 and DMS establish a WHDI-based wireless display connection. If not, DMP2 establishes a TCP/IP connection with DMS. Network connection, transfer media files through the established connection, and finally play and display the media files on DMP2, thus realizing the sharing of media files between different DMPs. Since WHDI technology has independent transmission signals and does not occupy network bandwidth, it can be passed through The wireless connection method for media transmission can effectively save network bandwidth. Further, WHDI is an uncompressed wireless connection method, so it does not require the receiving end DMP to have a decoding function, thereby effectively improving the efficiency of media sharing between different DMPs.

The existing DLNA defines its entire application into five functional components, which are: network interconnection, network protocol, media transmission, device discovery control and management, and media format. Among them, the network interconnection stipulates the type and protocol of the connected network, which mainly includes wired network, 802.3.i/u and wireless network 802.11n at present, and this embodiment provides a new connection type in network interconnection , that is, wireless display connection, such as: WHDI, UWB, WiDi or WirelessHD, this technology has an independent transmission signal and does not occupy network bandwidth, which can effectively save network bandwidth and improve the user's experience of media sharing between home network devices .

FIG. 5 is a schematic structural diagram of Embodiment 1 of the media file sharing device of the present invention. As shown in FIG. Two receiving module 403 . Wherein, the first receiving module 401 is used to receive the media file push message sent by the second DMP through the DMS, and the media file push message includes the name of the media file; the connection module 402 is used to establish a wireless display connection with the DMS; the second A receiving module 403, configured to receive the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection.

Further, the apparatus for sharing media files may further include: a judging module 404 . Wherein, the judgment module 404 is used to judge whether the first DMP supports the wireless display connection function before the connection module 402 establishes a wireless display connection with the DMS; the connection module 402 is specifically used if the judgment module 404 Determine that the first DMP supports a wireless display connection function, and establish a wireless display connection with the DMS.

Further, the connection module 402 is specifically configured to: establish a wireless display connection based on WHDI with the DMS; or establish a wireless display connection based on UWB with the DMS; or establish a wireless display connection based on WiDi with the DMS; Or, establish a WirelessHD-based wireless display connection with the DMS.

Optionally, the device for sharing media files may further include an authentication module 405, configured to receive, at the second receiving module 403, the authentication module 405 established by the DMS after the connection module 402 establishes a wireless display connection with the DMS. Before the media file corresponding to the media file name transmitted by the wireless display connection, the high-bandwidth digital content protection technology HDCP authentication is performed with the DMS.

The media file sharing device of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 1 or FIG. 4. For its realization principle and technical effect, refer to the description in the embodiment shown in FIG. 1 or FIG. Let me repeat.

FIG. 6 is a schematic structural diagram of Embodiment 2 of the media file sharing device of the present invention. As shown in FIG. Wherein, the sending module 501 is configured to send a media file push message to the first DMP, the media file push message is sent to the first DMP by the second DMP through the DMS, and the media file push message includes a media file name; a connection module 502, configured to establish a wireless display connection with the first DMP; a transmission module 503, configured to transmit the media file to the first DMP through the wireless display connection established by the connection module 502 The name corresponds to the media file.

Further, the connection module 502 is specifically configured to establish a WHDI-based wireless display connection with the first DMP; or establish a UWB-based wireless display connection with the DMS; or establish a WiDi-based wireless display connection with the first DMP connection; or, establishing a Wireless-based wireless display connection with the first DMP.

Optionally, the device for sharing media files may further include an authentication module 504, configured to, after the connection module establishes a wireless display connection with the first DMP, and after the transmission module sends the Before the first DMP transmits the media file corresponding to the media file name, HDCP authentication is performed with the first DMP.

The media file sharing device of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2 or FIG. 4. For its realization principle and technical effect, refer to the description in the embodiment shown in FIG. 2 or FIG. Let me repeat.

FIG. 7 is a schematic structural diagram of Embodiment 1 of the digital media player of the present invention. As shown in FIG. 7 , the digital media player 70 provided in this embodiment includes a processor 701 and a memory 702; the digital media player 70 is equivalent to the first DMP in the above embodiment. The digital media player 70 may also include a transmitter 703 and a receiver 704 . The transmitter 703 and the receiver 704 may be connected to the processor 701 . Wherein, the transmitter 703 is used to send data or information, the receiver 704 is used to receive data or information, the memory 702 stores execution instructions, and when the digital media player 70 is running, the processor 701 communicates with the memory 702, and the processor 701 Call the execution instructions in the memory 702 to perform the following operations:

Receive the media file pushing message that the second DMP sends by DMS, and the media file pushing message includes the name of the media file;

Establish a wireless display connection with the DMS;

receiving the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection.

Wherein, before establishing the wireless display connection with the DMS, it also includes:

Determine whether it supports the wireless display connection function;

If yes, execute the step of establishing a wireless display connection with the DMS.

Wherein, establishing a wireless display connection with the DMS includes:

Establishing a wireless display connection based on the Wireless Home Digital Interface WHDI with the DMS; or

Establishing an ultra-wideband UWB-based wireless display connection with the DMS; or

Establishing a wireless display connection based on the wireless display technology WiDi with the DMS; or

A wireless display connection based on WirelessHD is established with the DMS.

After establishing the wireless display connection with the DMS, and before receiving the media file corresponding to the media file name transmitted by the DMS through the established wireless display connection, the method further includes:

High-bandwidth digital content protection technology HDCP certification with the DMS.

The digital media player of this embodiment can be used to implement the technical solution of the media file sharing method provided by any embodiment of the present invention. For its implementation principle and technical effect, refer to the description in the above method embodiment, and will not be repeated here.

An embodiment of the present invention also provides a computer-readable medium, which includes computer-executable instructions, and the computer-executable instructions are used to enable a digital media player to execute the above-mentioned method.

FIG. 8 is a schematic structural diagram of Embodiment 1 of a digital media server according to the present invention. As shown in FIG. 8 , the digital media server 80 provided in this embodiment includes a processor 801 and a memory 802 . The digital media server 80 may also include a transmitter 803 and a receiver 804 . The transmitter 803 and the receiver 804 may be connected to the processor 801 . Among them, the transmitter 803 is used to send data or information, the receiver 804 is used to receive data or information, the memory 802 stores execution instructions, when the digital media server 80 is running, the processor 801 communicates with the memory 802, and the processor 801 calls The execution instructions in the memory 802 are used to perform the following operations:

Send a media file push message to the first DMP, the media file push message is sent to the first DMP by the second DMP through the DMS, and the media file push message includes the media file name;

establishing a wireless display connection with the first DMP;

Transmitting the media file corresponding to the media file name to the first DMP through the established wireless display connection.

Wherein, establishing a wireless display connection with the first DMP includes:

establishing a WHDI-based wireless display connection with the first DMP; or

establishing a UWB-based wireless display connection with the first DMP; or

establishing a WiDi-based wireless display connection with the first DMP; or

Establishing a Wireless-based wireless display connection with the first DMP.

Wherein, after the wireless display connection is established with the first DMP, and before the media file corresponding to the media file name is transmitted to the first DMP through the established wireless display connection, the method may further include:

Perform HDCP authentication with the first DMP.

The digital media server of this embodiment can be used to execute the technical solution of the media file sharing method provided by any embodiment of the present invention. For its implementation principle and technical effect, refer to the description in the above method embodiment, and will not be repeated here.

An embodiment of the present invention also provides a computer-readable medium, which includes computer-executable instructions, and the computer-executable instructions are used to enable a digital media server to execute the above-mentioned method.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (14)

1. media file is shared a method, it is characterized in that, comprising:

The first digital media player DMP receives the media file transmitting message that the 2nd DMP sends by digital media server DMS, and described media file transmitting message comprises media file name;

A described DMP sets up Wireless Display with described DMS and is connected;

A described DMP receives described DMS the connects transmission media file corresponding with described media file name by the described Wireless Display of setting up.

2. method according to claim 1, is characterized in that, a described DMP and described DMS set up before Wireless Display is connected, and also comprise:

A described DMP judges whether self supports Wireless Display linkage function;

If support, a described DMP carries out and sets up with described DMS the step that Wireless Display is connected.

3. method according to claim 1 and 2, is characterized in that, a described DMP sets up Wireless Display with described DMS and is connected, and comprising:

A described DMP is connected with the Wireless Display that described DMS sets up based on wireless family digital interface WHDI; Or

A described DMP is connected with the Wireless Display that described DMS sets up based on super bandwidth UWB; Or

A described DMP is connected with the Wireless Display that described DMS sets up based on Wireless Display technology WiDi; Or

A described DMP is connected with the Wireless Display that described DMS sets up based on WirelessHD WirelessHD.

4. according to the method described in any one in claim 1～3, it is characterized in that, a described DMP and described DMS set up after Wireless Display is connected, and before a described DMP receives with the described media file name corresponding media file of described DMS by the described Wireless Display connection transmission of foundation, described method also comprises:

A described DMP and described DMS carry out HDCP technology HDCP certification.

5. media file is shared a method, it is characterized in that, comprising:

Digital media server DMS sends media file transmitting message to the first digital media player DMP, and described media file transmitting message is that the 2nd DMP sends to a described DMP by described DMS, and described media file transmitting message comprises media file name;

Described DMS sets up Wireless Display with a described DMP and is connected;

Described DMS connects to the described DMP transmission media file corresponding with described media file name by the described Wireless Display of setting up.

6. method according to claim 5, is characterized in that, described DMS sets up Wireless Display with a described DMP and is connected, and comprising:

Described DMS is connected with the Wireless Display that a described DMP sets up based on wireless family digital interface WHDI; Or

Described DMS is connected with the Wireless Display that a described DMP sets up based on super bandwidth UWB; Or

Described DMS is connected with the Wireless Display that a described DMP sets up based on Wireless Display technology WiDi; Or

Described DMS is connected with the Wireless Display that a described DMP sets up based on WirelessHD WirelessHD.

7. according to the method described in claim 5 or 6, it is characterized in that, described DMS and a described DMP set up after Wireless Display is connected, and before described DMS transmits the media file corresponding with described media file name by the described Wireless Display connection of setting up to a described DMP, described method also comprises:

Described DMS and a described DMP carry out HDCP technology HDCP certification.

8. a media file sharing means, is included in the first digital media player DMP, it is characterized in that, described device comprises:

The first receiver module, the media file transmitting message sending by digital media server DMS for receiving the 2nd DMP, described media file transmitting message comprises media file name;

Link block, is connected for setting up Wireless Display with described DMS;

The second receiver module, connects by the described Wireless Display of setting up the media file corresponding with described media file name transmitting for receiving described DMS.

9. device according to claim 8, is characterized in that, also comprises:

Judge module, for setting up at described link block and described DMS before Wireless Display is connected, judges whether a described DMP supports Wireless Display linkage function;

Described link block, if judge that specifically for described judge module a described DMP supports Wireless Display linkage function, sets up Wireless Display with described DMS and is connected.

10. device according to claim 8 or claim 9, is characterized in that, described link block specifically for:

The Wireless Display of setting up based on wireless family digital interface WHDI with described DMS is connected; Or

The Wireless Display of setting up based on super bandwidth UWB with described DMS is connected; Or

The Wireless Display of setting up based on Wireless Display technology WiDi with described DMS is connected; Or

The Wireless Display of setting up based on WirelessHD WirelessHD with described DMS is connected.

Device in 11. according to Claim 8～10 described in any one, is characterized in that, also comprises:

Authentication module; for setting up at described link block and described DMS after Wireless Display is connected; and before described the second receiver module receives with the described media file name corresponding media file of described DMS by the described Wireless Display connection transmission of foundation, carry out HDCP technology HDCP certification with described DMS.

12. 1 kinds of media file sharing means, are included in digital media server DMS, it is characterized in that, described device comprises:

Sending module, for sending media file transmitting message to the first digital media player DMP, described media file transmitting message is that the 2nd DMP sends to a described DMP by described DMS, described media file transmitting message comprises media file name;

Link block, is connected for setting up Wireless Display with a described DMP;

Transport module, connects to the described DMP transmission media file corresponding with described media file name for the described Wireless Display of setting up by described link block.

13. devices according to claim 12, is characterized in that, described link block specifically for:

The Wireless Display of setting up based on wireless family digital interface WHDI with a described DMP is connected; Or

The Wireless Display of setting up based on super bandwidth UWB with a described DMP is connected; Or

The Wireless Display of setting up based on Wireless Display technology WiDi with a described DMP is connected; Or

The Wireless Display of setting up based on WirelessHD WirelessHD with a described DMP is connected.

14. according to the device described in claim 12 or 13, it is characterized in that, also comprises:

Authentication module; for setting up at described link block and a described DMP after Wireless Display is connected; and before described transport module transmits the media file corresponding with described media file name by the described Wireless Display connection of setting up to a described DMP, carry out HDCP technology HDCP certification with a described DMP.