CN113542904B

CN113542904B - Video projection playing method and device, electronic equipment and storage medium

Info

Publication number: CN113542904B
Application number: CN202110783126.0A
Authority: CN
Inventors: 龚丽萱; 谭俊良
Original assignee: Beijing QIYI Century Science and Technology Co Ltd
Current assignee: Beijing QIYI Century Science and Technology Co Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2023-06-02
Anticipated expiration: 2041-07-12
Also published as: CN113542904A

Abstract

The embodiment of the invention provides a video projection playing method, a video projection playing device, electronic equipment and a storage medium, wherein the method is applied to a user terminal and comprises the following steps: when a video screen-throwing instruction is acquired, acquiring equipment information of a DMR (digital multimedia broadcasting) based on DLNA, wherein the DMR is started after a local player in a screen-throwing terminal is locally constructed, and communication connection is established with a digital media server DMS; and sending url of the video to be screened to a local player based on the equipment information, and downloading and playing the video to be screened from the DMS by the local player based on url. The local player can locally construct the DMR through the event agency, the purpose of simulating the user terminal into the DMR is achieved, when the user terminal obtains a video screen-throwing instruction, the user terminal can obtain equipment information of the DMR, url of a video to be screened is sent to the local player, the local player downloads and plays the video to be screened based on the url, and video screen-throwing playing is achieved through the local player in the screen-throwing terminal.

Description

Video projection playing method and device, electronic equipment and storage medium

Technical Field

The present invention relates to the field of video processing technologies, and in particular, to a video projection playing method, apparatus, electronic device, and storage medium.

Background

With the development of network video technology, most video clients have a screen-throwing function, so that videos played by the video clients can be thrown into screen-throwing terminals such as televisions, display screens and mobile phones for playing, and users can watch the videos conveniently.

At present, the video screen-throwing function is realized by a video client-side throwing a screen to a screen-throwing terminal, and the screen-throwing terminal finishes the playing of the screen-throwing video through the screen-throwing function. Because the local player can only play the locally existing video resources, the local player in the screen-throwing terminal cannot realize the video screen-throwing playing.

Disclosure of Invention

The embodiment of the invention aims to provide a video screen-throwing playing method, a video screen-throwing playing device, electronic equipment and a storage medium, so that video screen-throwing playing is realized through a local player in a screen-throwing terminal. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides a video projection playing method, which is applied to a user terminal, where the method includes:

when a video screen-throwing instruction is acquired, acquiring equipment information of a Data Media Renderer (DMR) based on a Digital Living Network Alliance (DLNA), wherein the DMR is started after a local player in a screen-throwing terminal is locally constructed in advance based on an event agency, and establishes communication connection with a Digital Media Server (DMS);

And transmitting a uniform resource locator url of the video to be projected to the local player based on the equipment information, so that the local player downloads the video to be projected from the DMS based on the url, and plays the video to be projected.

Optionally, the step of acquiring the device information of the DMR of the data media renderer based on the DLNA includes:

transmitting a search message to preset root equipment in a multicast mode, wherein the preset root equipment stores equipment information of a Data Media Renderer (DMR) reported by the local player after the DMR is constructed;

and receiving the device information of the DMR sent by the preset root device in a unicast mode.

and acquiring device information of a Data Media Renderer (DMR) periodically transmitted by preset root devices in a multicast mode, wherein the preset root devices store the device information of the DMR, which is reported by the local player after the construction of the DMR is completed.

In a second aspect, an embodiment of the present invention provides a video projection playing method, which is applied to a local player in a projection terminal, where the local player constructs and opens a data media renderer DMR locally in advance based on an event agent, and the DMR establishes a communication connection with a digital media server DMS, and the method includes:

Receiving a uniform resource locator url of a video to be screen-projected, which is sent by a user terminal based on equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on a Digital Living Network Alliance (DLNA) when acquiring a video screen-projected instruction;

and downloading the video to be screened from the DMS based on the url, and playing the video to be screened.

Optionally, before the step of receiving url of the video to be screened sent by the user terminal based on the device information of the DMR, the method further includes:

constructing a Data Media Renderer (DMR) locally based on the event agent;

and sending the device information of the DMR to preset root equipment, so that the preset root equipment sends the device information to the user terminal in a unicast mode when receiving a search message sent by the user terminal in a multicast mode.

constructing a Data Media Renderer (DMR) locally based on the event agent;

and sending the device information of the DMR to preset root equipment so that the preset root equipment periodically sends the device information of the data media renderer DMR to the user terminal in a multicast mode.

In a third aspect, an embodiment of the present invention provides a video projection playing device, which is applied to a user terminal, where the device includes:

the device information acquisition module is used for acquiring device information of a Data Media Renderer (DMR) based on a Digital Living Network Alliance (DLNA) when a video screen-throwing instruction is acquired, wherein the DMR is started after a local player in a screen-throwing terminal is locally constructed in advance based on an event agent, and communication connection is established with a Digital Media Server (DMS);

and the url sending module is used for sending a uniform resource locator url of the video to be screened to the local player based on the equipment information, so that the local player downloads the video to be screened from the DMS based on the url and plays the video to be screened.

In a fourth aspect, an embodiment of the present invention provides a video projection playing device, which is applied to a local player in a projection terminal, where the local player constructs and opens a data media renderer DMR locally in advance based on an event agent, and the DMR establishes a communication connection with a digital media server DMS, and the device includes:

the url receiving module is used for receiving a uniform resource locator url of a video to be screen-projected, which is sent by a user terminal based on the equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on a Digital Living Network Alliance (DLNA) when acquiring a video screen-projected instruction;

And the video projection playing module is used for downloading the video to be projected from the DMS based on the url and playing the video to be projected.

In a fifth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;

a memory for storing a computer program;

a processor configured to implement the method steps of the first aspect or any of the first aspects when executing a program stored on a memory.

In a sixth aspect, an embodiment of the present invention provides a computer readable storage medium having a computer program stored therein, where the computer program when executed by a processor implements the method steps of the first aspect or any of the first aspects.

In the scheme provided by the embodiment of the invention, when a video screen-throwing instruction is acquired, the user terminal can acquire the equipment information of the DMR of the data media renderer based on the DLNA, wherein the DMR is started after being locally constructed based on an event agency in advance for a local player in the screen-throwing terminal, and is in communication connection with the DMS, so that a uniform resource locator url of the video to be screened is sent to the local player based on the equipment information, and the local player downloads the video to be screened from the DMS based on url and plays the video to be screened.

In the scheme, a local player in the screen projection terminal can locally construct a DMR through an event agency and start the DMR, the DMR and a digital media server DMS are in communication connection so as to achieve the purpose of simulating the DMR into the DMR, so that when a user terminal acquires a video screen projection instruction, equipment information of the DMR can be acquired based on a DLNA protocol, the user terminal can determine the local player in the screen projection terminal as the DMR at the moment, further, url of a video to be projected is sent to the local player, the local player can download and play the video to be projected from the DMS in communication connection based on the url, video screen projection playing is achieved through the local player in the screen projection terminal, the service scene of the local player can be widened, a user of the local player is driven to grow, and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a flowchart of a first video projection playing method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a manner of obtaining device information based on the DMR of the embodiment shown in fig. 1;

Fig. 3 is another schematic diagram of a method for acquiring device information based on the DMR of the embodiment shown in fig. 1;

fig. 4 is a flowchart of a second video projection playing method according to an embodiment of the present invention;

FIG. 5 is a flow chart of a video sharing method according to the embodiment shown in FIG. 4;

fig. 6 is a signaling interaction diagram of a video projection playing method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first video projection playing device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second video projection playing device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

In order to realize video projection playing through a local player in a projection terminal, embodiments of the present invention provide a video projection playing method, apparatus, electronic device, computer readable storage medium and computer program product. The following describes a video projection playing method provided by the embodiment of the invention.

The first video projection playing method provided by the embodiment of the invention can be applied to any user terminal needing video projection playing, for example, the user terminal can be a computer, a tablet computer, a mobile phone and the like, and is not particularly limited.

As shown in fig. 1, a video projection playing method is applied to a user terminal, and the method includes:

s101, acquiring equipment information of a Data Media Renderer (DMR) based on Digital Living Network Alliance (DLNA) when a video screen-throwing instruction is acquired;

the DMR is started after being constructed locally based on an event agent in advance for a local player in the screen projection terminal, and establishes communication connection with a Digital Media Server (DMS).

S102, transmitting a uniform resource locator url of the video to be screened to the local player based on the equipment information, so that the local player downloads the video to be screened from the DMS based on the url, and plays the video to be screened.

In the scheme provided by the embodiment of the invention, when the user terminal acquires the video screen-throwing instruction, the device information of the data media renderer DMR is acquired based on the digital living network alliance DLNA, wherein the DMR is started after being locally constructed based on the event agent in advance for a local player in the screen-throwing terminal, and is in communication connection with the digital media server DMS, so that a uniform resource locator url of the video to be screened is sent to the local player based on the device information, and the local player downloads the video to be screened from the DMS based on url and plays the video to be screened. In the scheme, a local player in the screen projection terminal can locally construct a DMR through an event agency and start the DMR, the DMR and a digital media server DMS are in communication connection so as to achieve the purpose of simulating the DMR into the DMR, so that when a user terminal acquires a video screen projection instruction, equipment information of the DMR can be acquired based on a DLNA protocol, the user terminal can determine the local player in the screen projection terminal as the DMR at the moment, further, url of a video to be projected is sent to the local player, the local player can download and play the video to be projected from the DMS in communication connection based on the url, video screen projection playing is achieved through the local player in the screen projection terminal, the service scene of the local player can be widened, a user of the local player is driven to grow, and the like.

When the user needs to play the video, the user can select the video to be watched from a video APP (application) interface in the user terminal and send out a video screen-throwing instruction. For example, the user may issue a video screen shot instruction by clicking a screen shot button or the like. The video which the user wants to watch is the video to be projected. Furthermore, the user terminal can acquire the video screen-throwing instruction. Of course, in order to play the video to be projected later, the user terminal may also acquire url (Uniform Resource Locator ) of the video to be projected for standby.

The current video screen-casting playing is realized based on DLNA (DIGITAL LIVING NETWORK ALLIANCE), which is a local area NETWORK resource sharing protocol, and is established on the basis of UPNP (Universal Plug and Play ) protocol, and the UPNP protocol is used for completing the searching, finding and controlling of the equipment. The UPNP is a set of universal plug and play network protocol, and is suitable for discovery and interconnection between devices in a local area network. UPNP network components typically consist of control points, devices, and services.

The DLNA-based video projection system mainly includes DMS (Digital Media Server ), DMR (Digital Media Renderer, data media renderer) and DMC (Digital Media Controller ). The DMS is a provider of media content, i.e. a video server, and the DMR can play the media content in the DMS, and the DMC is used to establish connection between the DMS and the DMR, control playing of the media content, and so on.

The video screen-casting playing process mainly comprises two stages of DMR device discovery and DMR device control. The local player in the screen-throwing terminal can locally construct the DMR in advance based on the event agency and start the DMR so as to simulate the local player into one DMR, and the DMR and the DMS can establish communication connection based on a network, so that the user terminal can acquire the equipment information of the DMR based on the DLNA as the DMC when acquiring the video screen-throwing instruction. The device information may include information related to the DMR, such as a device description address, device status information, and the like, which is not specifically limited herein.

The screen-throwing terminal is a terminal which needs to play a video to be projected, namely a screen-throwing receiving terminal, and can be a television, a computer, a mobile phone and the like, and the user terminal is a screen-throwing initiating terminal without specific limitation. For example, when the user uses the mobile phone a to screen the video to be screen to the television B for watching, the mobile phone a is the user terminal, and the television B is the screen terminal.

In one embodiment, the local player in the projection terminal may construct the DMR using the U PNP based on the play library, e.g., the local player may construct the DMR using its own event proxy my_plt_ MediaRe ndererDelegate. Thus, after the local player constructs the DMR, the DMR equipment is started to be found by other equipment under the same wifi, and control information and the like sent by the control point can also be received.

After the user terminal obtains the device information of the DMR configured by the local player of the screen-throwing terminal, the step S102 may be executed, that is, url of the video to be thrown is sent to the local player based on the device information. After the user terminal obtains the device information of the DMR, the DMR can be controlled, specifically, the user terminal can send url of the video to be screened to the DMR, that is, send url of the video to be screened to the local player.

Furthermore, the local player in the screen-throwing terminal can download the video to be screened from the DMS in communication connection based on the url and play the video to be screened, and the user can watch the video to be screened in the screen-throwing terminal, so that the screen-throwing playing of the video is completed.

As an embodiment, the local player in the projection terminal may send a video request to the video server based on the url, where the video request may include the url of the video to be projected. The video server is a server for providing video content, that is, the DMS. After receiving the video request, the video server can send the media content corresponding to url of the video to be screened, namely the video to be screened, to a local player in the screen screening terminal, and then the local player can receive and play the video to be screened.

In one embodiment, in the process of playing the video to be displayed by the local player, the user terminal, as the DMC, may receive a video operation instruction sent by a user, for example, pause, play, fast forward, end, etc., and may further send a control message to the DMR constructed by the local player, so that the DMR performs play control on the played video to be displayed according to the control message.

In the scheme provided by the embodiment, the local player in the screen projection terminal can locally construct and start the DMR through the event proxy, communication connection is established with the DMS, when the user terminal acquires the video screen projection instruction, the user terminal can acquire the equipment information of the DMR based on the DLNA protocol, at the moment, the user terminal can determine the local player in the screen projection terminal as the DMR, further, the url of the video to be projected is sent to the local player, and the local player can download and play the video to be projected from the DMS based on the url, so that video screen projection playing is performed through the local player in the screen projection terminal, the use scene of the local player can be widened, the user of the local player is driven to grow, and the like.

As an implementation manner of the embodiment of the present invention, the step of obtaining the device information of the data media renderer DMR based on the DLNA may include:

Sending a search message to preset root equipment in a multicast mode; and receiving the device information of the DMR sent by the preset root device in a unicast mode.

As shown in fig. 2, in the DLNA-based video projection system, a preset root device 210, which may be a port with a designated address, may be included. The local player 211 in the screen-throwing terminal can report the device information of the DMR to the preset root device 210 after the D MR is constructed, and the preset root device 210 can store the device information of the DMR.

When the user terminal obtains the video screen-throwing instruction, the user terminal may send the search message to the preset root device in a multicast manner, and in one embodiment, the user terminal 220 may send the search message to the preset root device 210 in a multicast manner.

Furthermore, after the preset root device receives the search message, the device information of the DMR may be sent to the user terminal in a unicast manner, so that the user terminal may receive the device information of the DMR. As an implementation manner, the preset root device may send a response message to the user terminal in a unicast manner, where the response message may carry device information of the DMR.

It can be seen that, in this embodiment, the ue may send the search message to the preset root device in a multicast manner, and further receive the device information of the DMR sent by the preset root device in a unicast manner. When a video screen-throwing instruction is acquired, the user terminal can quickly and accurately acquire the device information of the DMR pre-constructed by the local player in the screen-throwing terminal, so that the follow-up processing process is ensured to be smoothly carried out.

and acquiring device information of the data media renderer DMR periodically transmitted by the preset root device in a multicast mode.

As shown in fig. 3, in the DLNA-based video projection system, a preset root device 310, which may be a port with a designated address, may be included. After the DMR is constructed, the local player 311 in the screen terminal can report the device information of the DMR to the preset root device 310, and the preset root device 310 can store the device information of the DMR.

The preset root device can periodically send the device information of the DMR to the local area network in a multicast mode, so that other devices in the local area network can receive the device information of the DMR. When the user terminal acquires the video screen-throwing instruction, the user terminal can acquire the equipment information of the DMR. In one embodiment, the preset root device may periodically send notify messages to the local area network in a multicast manner. When the user terminal 320 obtains the video screen-throwing instruction, the device information of the DMR can be obtained.

It can be seen that, in this embodiment, the user terminal may acquire device information of the DMR of the data media renderer periodically sent by the preset root device in a multicast manner, and when acquiring the video screen-throwing instruction, may quickly and accurately acquire device information of the DMR pre-configured by the local player in the screen-throwing terminal, so as to ensure that the subsequent processing process proceeds smoothly.

Corresponding to the first video projection playing method, the embodiment of the invention also provides another video projection playing method, and the second video projection playing method provided by the embodiment of the invention is introduced below.

The second video projection playing method provided by the embodiment of the invention can be applied to any terminal needing projection video playing, for example, televisions, computers, mobile phones and the like, and is not particularly limited herein.

As shown in fig. 4, a video projection playing method is applied to a local player in a projection terminal, the local player constructs and opens a data media renderer DMR locally in advance based on an event agent, and the DMR establishes communication connection with a digital media server DMS, the method includes:

s401, receiving a uniform resource locator url of a video to be projected, which is sent by a user terminal based on the equipment information of the DMR;

The equipment information is acquired by the user terminal based on Digital Living Network Alliance (DLNA) when a video screen-throwing instruction is acquired.

S402, downloading the video to be projected from the DMS based on the url, and playing the video to be projected.

In the scheme provided by the embodiment of the invention, the local player in the screen-throwing terminal constructs and starts the data media renderer DMR locally based on the event agency in advance, the DMR establishes communication connection with the digital media server DMS, the local player can receive the uniform resource locator url of the video to be screened sent by the user terminal based on the equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on the digital living network alliance DLNA when the video screen-throwing instruction is acquired, and further, the video to be screened from the DMS is downloaded based on url, and the video to be screened is played. In the scheme, a local player in the screen projection terminal can locally construct and start a DMR through an event proxy, the DMR and a digital media server DMS are in communication connection so as to achieve the purpose of simulating the DMR into the DMR, so that when a user terminal acquires a video screen projection instruction, the user terminal can acquire equipment information of the DMR based on a DLNA protocol, the user terminal can determine the local player in the screen projection terminal as the DMR at the moment, further, url of a video to be projected is sent to the local player, the local player can download and play the video to be projected from the DMS in communication connection based on the url, video screen projection playing is achieved through the local player in the screen projection terminal, the use scene of the local player can be widened, the user of the local player is driven to grow, and the like.

When a user needs to play the video, the user can select the video to be watched from the video APP interface in the user terminal and send out a video screen-throwing instruction, and then the user terminal can acquire the video screen-throwing instruction.

The local player in the screen projection terminal can locally construct the DMR in advance based on the event agency so as to simulate the local player into one DMR, and therefore, when the user terminal is taken as the DMC, the user terminal can acquire the equipment information of the DMR based on the DLNA when acquiring the video screen projection instruction.

After the user terminal obtains the equipment information of the DMR constructed by the local player of the screen throwing terminal, url of the video to be thrown can be sent to the local player based on the equipment information. In step S401, the local player in the screen-projection terminal receives url of the video to be projected sent by the user terminal based on the DMR device information, and further downloads the video to be projected from the DMS in communication connection based on url, and plays the video to be projected, so that the user can watch the video to be projected in the screen-projection terminal, thereby completing the screen-projection playing of the video.

As an implementation manner of the embodiment of the present invention, before the step of receiving url of the video to be projected sent by the user terminal based on the device information of the DMR, the method may further include:

Constructing a Data Media Renderer (DMR) locally based on the event agent; and sending the device information of the DMR to preset root equipment, so that the preset root equipment sends the device information to the user terminal in a unicast mode when receiving a search message sent by the user terminal in a multicast mode.

Since the specific implementation of this embodiment has been described in detail in the foregoing first video projection playing method embodiment, a detailed description is omitted.

constructing a Data Media Renderer (DMR) locally based on the event agent; and sending the device information of the DMR to preset root equipment so that the preset root equipment periodically sends the device information of the data media renderer DMR to the user terminal in a multicast mode.

As an implementation manner of the embodiment of the present invention, the step of playing the video to be projected may include:

Acquiring a video operation instruction sent by a user; and performing play control on the played video to be screen-switched according to the video operation instruction.

In the process of playing the video to be displayed, the user can operate in the local player interface to send out video operation instructions, such as pause, drag progress bar, closing and the like. And the local player in the screen projection terminal can acquire the video operation instruction sent by the user based on the local player interface.

The local player can perform corresponding play control on the played video to be projected according to the video operation instruction so as to meet the watching requirement of a user.

It can be seen that, in this embodiment, the local player in the screen-throwing terminal may obtain the video operation instruction sent by the user, and further play and control the played video to be thrown according to the video operation instruction, so that control information of a synchronization control point may not be needed, that is, control information of the user terminal may not be needed to be synchronized, and the user may directly control video playing in the interface of the local player in the screen-throwing terminal, so that user operation is facilitated, and user experience is improved.

As shown in fig. 5, the method may further include:

S501, when a video sharing instruction is received, a rule request message is sent to a cloud server;

in the process of watching the video to be screened, the user can share the video to be screened for friends to watch, at this time, the user can send a video sharing instruction in an interface of the local player, for example, the user can send a video sharing instruction by clicking a sharing button.

The local player can acquire a video sharing instruction sent by the user, and can send a rule request message to the cloud server to request url sharing rules when receiving the video sharing instruction in order to carry out copyright protection on video resources. The cloud server stores url sharing rules.

It is reasonable that the url sharing rule is used to specify what format of video url is shareable, or that video url is not shareable, or that video url is shareable, and that video url is not shareable, and is not specifically limited herein.

S502, receiving the url sharing rule sent by the cloud server;

After receiving the rule request message sent by the local player, the cloud server can send the stored url sharing rule to the local player, and then the local player can receive the url sharing rule sent by the cloud server.

S503, determining whether the video to be projected meets a sharing condition or not based on the url sharing rule and the url of the video to be projected;

after the url sharing rule is obtained, the local player can determine whether the video to be screened meets the sharing condition based on the url sharing rule and the url of the video to be screened. In a real-time manner, the local player can compare the url format of the video to be screened with the url sharing format specified in the url sharing rule, and if the url format of the video to be screened accords with the url format which can be shared, the video to be screened can be determined to be shareable, and the sharing condition is met.

If the url format of the video to be screened does not conform to the sharable url format, it can be determined that the video to be screened is not sharable, and the sharing condition is not satisfied. In this case, the local player may display a sharing error message to inform the user that the video to be cast cannot be shared due to copyright protection.

S504, under the condition that the video to be screened meets the sharing condition, encrypting url of the video to be screened to obtain encrypted url;

under the condition that the local player determines that the video to be screened meets the sharing condition, the video to be screened can be shared to friends, so that in order to ensure the data security, the local player can encrypt url of the video to be screened to obtain encrypted url.

The method for encrypting the url of the video to be projected can be any video url encryption method in the video processing field, and is not particularly limited and described herein.

S505, sending the encrypted url to a target local player of the user indicated by the video sharing instruction, so that the target local player decrypts the encrypted url to obtain the url of the video to be projected, downloading the video to be projected based on the url of the video to be projected, and playing the video to be projected.

After the url of the video to be projected is encrypted to obtain the encrypted url, the local player can send the encrypted url to the target local player of the user indicated by the video sharing instruction, wherein the target local player is the local player installed in the terminal used by the user indicated by the video sharing instruction.

After receiving the encrypted url, the destination local player can decrypt the encrypted url to obtain the url of the video to be projected. Then, the target local player can download the video to be projected based on url of the video to be projected and play the video to be projected, so that friends of the user can watch the video to be projected.

As an implementation manner, after the url of the video to be screened is obtained by the target local player, a video request may be sent to the video server based on the url, where the video request may include the url of the video to be screened. After receiving the video request, the video server can send the media content corresponding to url of the video to be screened, namely the video to be screened, to the target local player, and then the target local player can receive and play the video to be screened.

It can be seen that, in this embodiment, when it is determined that the video to be screened meets the sharing condition, the local player may encrypt url of the video to be screened to obtain encrypted url, and then send the encrypted url to the destination local player of the user indicated by the video sharing instruction, so that the destination local player decrypts the encrypted url to obtain url of the video to be screened, downloads the video to be screened based on url of the video to be screened, and plays the video to be screened. Therefore, users can share the watched videos with friends through the local player under the condition of ensuring the data security, the interaction among the users is increased, and the user growth is realized.

As an implementation manner of the embodiment of the invention, after downloading the video to be projected, the local player can encrypt and store the cached video to be projected so as to ensure the safety of video resources.

The method for playing video on screen provided by the embodiment of the invention is described below by way of example with reference to the signaling interaction diagram of the method for playing video on screen shown in fig. 6. The video screen-throwing playing method provided by the embodiment of the invention can be realized based on a video screen-throwing system, and the video screen-throwing system can comprise a control point, namely a video APP in a user terminal, a local player in the screen-throwing terminal, a video server, a cloud distribution server and a target local player. The video projection playing method provided by the embodiment of the invention can comprise the following steps:

s601, the local player constructs and starts a DMR locally based on an event agent;

after the DMR is started, a communication connection is established with a digital media server DMS (video server).

S602, the local player periodically transmits the equipment information of the DMR to the user terminal in a multicast mode;

s603, when the user terminal acquires a video screen-throwing instruction, a search message sent in a multicast mode is sent to a local player;

s604, the local player sends the equipment information to the user terminal in a unicast mode;

The ue may acquire the device information of the DMR through one of step S602 or step S603-step S604.

S605, the user terminal sends url of the video to be projected to a local player based on the equipment information;

s606, the local player sends a video request message to the video server based on url of the video to be screened;

s607, the video server returns the video to be screened to the local player;

s608, the local player receives the video to be projected and plays the video to be projected;

s609, when the local player receives the video sharing instruction, a rule request message is sent to the cloud server;

s610, the cloud server sends url sharing rules to the local player;

s611, the local player determines whether the video to be screened meets the sharing condition based on url sharing rules and url of the video to be screened;

s612, under the condition that the video to be projected meets the sharing condition, the local player encrypts url of the video to be projected to obtain encrypted url;

s613, the local player sends the encrypted url to a target local player of the user indicated by the video sharing instruction;

s614, the target local player decrypts the encrypted url to obtain the url of the video to be projected, and sends a video request message to the video server based on the url of the video to be projected;

S615, the video server returns the video to be screened to the target local player;

s616, the target local player receives the video to be projected and plays the video to be projected.

Since the specific implementation manner of each step is described in detail in the foregoing embodiments, details are not repeated herein. In this embodiment, the local player in the screen projection terminal may locally construct and start the DMR through the event proxy, and after the DMR is started, establish communication connection with the video server to achieve the purpose of simulating itself into the DMR, so when the user terminal obtains the video screen projection instruction, the user terminal may obtain the device information of the DMR based on the DLNA protocol, at this time, the user terminal may determine the local player in the screen projection terminal as a DMR, and further send url of the video to be projected to the local player, and the local player may also download and play the video to be projected from the video server based on the url, thereby implementing video screen projection playing through the local player in the screen projection terminal. The user can share the video to be screened to friends for watching through the local player, interaction among the users can be increased on the premise of protecting copyrights, the use scene of the local player is widened, and the user of the local player is driven to grow.

Corresponding to the first video projection playing method, the embodiment of the invention also provides a video projection playing device, and the first video projection playing device provided by the embodiment of the invention is described below.

As shown in fig. 7, a video projection playing device is applied to a user terminal, and the device includes:

the device information acquisition module 710 is configured to acquire device information of the data media renderer DMR based on the digital living network alliance DLNA when a video screen-casting instruction is acquired;

The url sending module 720 is configured to send url of the video to be screened to the local player based on the device information, so that the local player downloads the video to be screened from the DMS based on the url, and plays the video to be screened.

As an implementation manner of the embodiment of the present invention, the device information obtaining module 710 may include:

a search message sending unit, configured to send a search message to a preset root device in a multicast manner;

the preset root device stores device information of the DMR, which is reported by the local player after the local player constructs the DMR of the data media renderer.

And the device information receiving unit is used for receiving the device information of the DMR, which is sent by the preset root device in a unicast mode.

the device information acquisition unit is used for acquiring the device information of the data media renderer DMR, which is periodically transmitted by the preset root device in a multicast mode.

The preset root device stores device information of the DMR, which is reported by the local player after the DMR is constructed.

Corresponding to the second video projection playing method, the embodiment of the invention also provides another video projection playing device, and the second video projection playing device provided by the embodiment of the invention is described below.

As shown in fig. 8, a video projection playing device is applied to a local player in a projection terminal, the local player constructs and opens a data media renderer DMR locally in advance based on an event agent, the DMR establishes a communication connection with a digital media server DMS, and the device includes:

A url receiving module 810, configured to receive url of a video to be screened sent by a user terminal based on the device information of the DMR;

The video projection playing module 820 is configured to download the video to be projected from the DMS based on the url, and play the video to be projected.

In the scheme provided by the embodiment of the invention, the local player in the screen-throwing terminal constructs and starts the data media renderer DMR locally based on the event agency in advance, the DMR establishes communication connection with the digital media server DMS, the local player can receive the uniform resource locator url of the video to be screened sent by the user terminal based on the equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on the digital living network alliance DLNA when the video screen-throwing instruction is acquired, and further, the video to be screened is downloaded from the DMS based on the url, and the video to be screened is played. In the scheme, a local player in the screen projection terminal can locally construct and start a DMR through an event proxy, the DMR and a digital media server DMS are in communication connection so as to achieve the purpose of simulating the DMR into the DMR, so that when a user terminal acquires a video screen projection instruction, the user terminal can acquire equipment information of the DMR based on a DLNA protocol, the user terminal can determine the local player in the screen projection terminal as the DMR at the moment, further, url of a video to be projected is sent to the local player, the local player can download and play the video to be projected from the DMS in communication connection based on the url, video screen projection playing is achieved through the local player in the screen projection terminal, the use scene of the local player can be widened, the user of the local player is driven to grow, and the like.

As an implementation manner of the embodiment of the present invention, the foregoing apparatus may further include:

the first DMR construction module is used for constructing a data media renderer DMR locally based on an event agency before the receiving user terminal sends a uniform resource locator url of the video to be projected based on the equipment information of the DMR;

and the first equipment information sending module is used for sending the equipment information of the DMR to preset root equipment so that the preset root equipment sends the equipment information to the user terminal in a unicast mode when receiving a search message sent by the user terminal in a multicast mode.

the second DMR construction module is used for constructing a data media renderer DMR locally based on an event agency before the receiving user terminal sends a uniform resource locator url of the video to be projected based on the equipment information of the DMR;

and the second device information sending module is used for sending the device information of the DMR to preset root devices so that the preset root devices periodically send the device information of the data media renderer DMR to the user terminal in a multicast mode.

The embodiment of the invention also provides electronic equipment which can be the user terminal or the screen projection terminal. As shown in fig. 9, the electronic device includes a processor 901, a communication interface 902, a memory 903, and a communication bus 904, wherein the processor 901, the communication interface 902, the memory 903 complete communication with each other through the communication bus 904,

a memory 903 for storing a computer program;

the processor 901 is configured to implement the steps of the video projection playing method described in any one of the embodiments when executing the program stored in the memory 903.

In the scheme provided by the embodiment of the invention, the local player in the screen projection terminal can locally construct and start the DMR through the event agency, the DMR and the digital media server DMS are in communication connection so as to achieve the purpose of simulating the DMR into the DMR, so that when a video screen projection instruction is acquired by the user terminal, equipment information of the DMR can be acquired based on a DLNA protocol, the local player in the screen projection terminal can be determined to be the DMR at the moment, url of a video to be projected is sent to the local player, the local player can download and play the video to be projected from the DMS in communication connection based on the url, video screen projection playing is carried out through the local player in the screen projection terminal, the use scene of the local player can be widened, the user of the local player is driven to grow, and the like.

The communication bus mentioned by the above electronic device may be a peripheral component interconnect standard (Peripheral Component Interconnect, abbreviated as PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one cache device located remotely from the processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In still another embodiment of the present invention, a computer readable buffer medium is provided, where instructions are buffered in the computer readable buffer medium, when the computer readable buffer medium runs on a computer, to make the computer execute the steps of the video projection playing method described in any one of the above embodiments.

In yet another embodiment of the present invention, a computer program product containing instructions that, when executed on a computer, cause the computer to perform the video projection method steps of any of the embodiments described above is also provided.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be cached in or transmitted from one computer-readable cache medium to another, for example, by wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable cache medium may be any available medium that can be accessed by a computer or a data caching device such as a server, data center, etc. that contains one or more integration of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the apparatus, electronic device, computer readable storage medium, and computer program product embodiments, the description is relatively simple, as relevant to the method embodiments being referred to in the section of the description of the method embodiments.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A video projection playing method, which is characterized by being applied to a user terminal, the method comprising:

when a video screen-throwing instruction is acquired, acquiring equipment information of a Data Media Renderer (DMR) based on a Digital Living Network Alliance (DLNA), wherein the DMR is started after a local player in a screen-throwing terminal is locally constructed in advance based on an event agency, and establishes communication connection with a Digital Media Server (DMS); the device information includes a device description address and/or device status information;

transmitting a uniform resource locator url of the video to be projected to the local player based on the equipment information, so that the local player downloads the video to be projected from the DMS based on the url and plays the video to be projected;

the sending, by the local player, url of a uniform resource locator of a video to be screened based on the device information, so that the local player downloads the video to be screened from the DMS based on url, and plays the video to be screened, including:

Based on the video sharing instruction sent by the local player, the local player sends a rule request message to a cloud server when receiving the video sharing instruction;

receiving url sharing rules sent by the cloud server;

determining whether the video to be projected meets the url sharing rule or not based on the url sharing rule and the url of the video to be projected;

under the condition that the video to be projected meets the url sharing rule, encrypting the url of the video to be projected to obtain the encrypted url;

and sending the encrypted url to a target local player of the user indicated by the video sharing instruction, so that the target local player decrypts the encrypted url to obtain the url of the video to be projected, downloading the video to be projected based on the url of the video to be projected, and playing the video to be projected.

2. The method of claim 1, wherein the step of acquiring device information of the data media renderer DMR based on the digital living network alliance DLNA comprises:

3. The method of claim 1, wherein the step of acquiring device information of the data media renderer DMR based on the digital living network alliance DLNA comprises:

4. The video projection playing method is characterized by being applied to a local player in a projection terminal, wherein the local player constructs and starts a Data Media Renderer (DMR) locally in advance based on an event agency, and the DMR establishes communication connection with a Digital Media Server (DMS), and the method comprises the following steps:

receiving a uniform resource locator url of a video to be screen-projected, which is sent by a user terminal based on equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on a Digital Living Network Alliance (DLNA) when acquiring a video screen-projected instruction; the device information includes a device description address and/or device status information;

Downloading the video to be projected from the DMS based on the url, and playing the video to be projected;

the downloading the video to be projected from the DMS based on the url and playing the video to be projected comprises the following steps:

when a video sharing instruction is received, a rule request message is sent to a cloud server;

receiving url sharing rules sent by the cloud server;

5. The method of claim 4, wherein prior to the step of receiving a uniform resource locator url of the video to be screened sent by the user terminal based on the device information of the DMR, the method further comprises:

Constructing a Data Media Renderer (DMR) locally based on the event agent;

6. The method of claim 4, wherein prior to the step of receiving a uniform resource locator url of the video to be screened sent by the user terminal based on the device information of the DMR, the method further comprises:

constructing a Data Media Renderer (DMR) locally based on the event agent;

7. A video projection display device, for use in a user terminal, the device comprising:

the device information acquisition module is used for acquiring device information of a Data Media Renderer (DMR) based on a Digital Living Network Alliance (DLNA) when a video screen-throwing instruction is acquired, wherein the DMR is started after a local player in a screen-throwing terminal is locally constructed in advance based on an event agent, and communication connection is established with a Digital Media Server (DMS); the device information includes a device description address and/or device status information;

The url sending module is configured to send url of a uniform resource locator of a video to be screened to the local player based on the device information, so that the local player downloads the video to be screened from the DMS based on the url, and plays the video to be screened, and send url of the uniform resource locator of the video to be screened to the local player based on the device information, so that the local player downloads the video to be screened from the DMS based on the url, and plays the video to be screened, and includes: based on the video sharing instruction sent by the local player, the local player sends a rule request message to a cloud server when receiving the video sharing instruction; receiving url sharing rules sent by the cloud server; determining whether the video to be projected meets the url sharing rule or not based on the url sharing rule and the url of the video to be projected; under the condition that the video to be projected meets the url sharing rule, encrypting the url of the video to be projected to obtain the encrypted url; and sending the encrypted url to a target local player of the user indicated by the video sharing instruction, so that the target local player decrypts the encrypted url to obtain the url of the video to be projected, downloading the video to be projected based on the url of the video to be projected, and playing the video to be projected.

8. A video projection playing device, which is applied to a local player in a projection terminal, wherein the local player constructs and starts a data media renderer DMR locally in advance based on an event agent, and the DMR establishes a communication connection with a digital media server DMS, and the device comprises:

the url receiving module is used for receiving a uniform resource locator url of a video to be screen-projected, which is sent by a user terminal based on the equipment information of the DMR, wherein the equipment information is acquired by the user terminal based on a Digital Living Network Alliance (DLNA) when acquiring a video screen-projected instruction; the device information includes a device description address and/or device status information;

the video projection playing module is used for downloading the video to be projected from the DMS based on the url and playing the video to be projected; the downloading the video to be projected from the DMS based on the url and playing the video to be projected comprises the following steps: when a video sharing instruction is received, a rule request message is sent to a cloud server; receiving url sharing rules sent by the cloud server; determining whether the video to be projected meets the url sharing rule or not based on the url sharing rule and the url of the video to be projected; under the condition that the video to be projected meets the url sharing rule, encrypting the url of the video to be projected to obtain the encrypted url; and sending the encrypted url to a target local player of the user indicated by the video sharing instruction, so that the target local player decrypts the encrypted url to obtain the url of the video to be projected, downloading the video to be projected based on the url of the video to be projected, and playing the video to be projected.

9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

a processor for carrying out the method steps of any one of claims 1-3 or 4-6 when executing a program stored on a memory.

10. A computer readable buffer medium, wherein a computer program is buffered in the computer readable buffer medium, the computer program implementing the method steps of any of claims 1-3 or 4-6 when executed by a processor.