CN112055251A - Media data playing method, device, equipment and storage medium - Google Patents
Media data playing method, device, equipment and storage medium Download PDFInfo
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- CN112055251A CN112055251A CN202010921521.6A CN202010921521A CN112055251A CN 112055251 A CN112055251 A CN 112055251A CN 202010921521 A CN202010921521 A CN 202010921521A CN 112055251 A CN112055251 A CN 112055251A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004590 computer program Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
Abstract
The invention discloses a media data playing method, a device, equipment and a storage medium. The method comprises the following steps: after receiving request information sent by a digital media controller, sending feedback information to the digital media controller; receiving a webpage address sent by the digital media controller after receiving the feedback information; and acquiring media data from the digital media server according to the webpage address and playing the media data, wherein the technical scheme of the invention can realize screen projection through a DLNA protocol in an information security environment.
Description
Technical Field
The present invention relates to vehicle technologies, and in particular, to a method, an apparatus, a device, and a storage medium for playing media data.
Background
Along with the development of intelligent networking car, the car can surf the net gradually, and the car possesses on-vehicle screen, and on-vehicle screen is used for carrying out data display.
Gradually, it is a hot topic to project the mobile phone content to the vehicle-mounted screen of the automobile. Currently, the screen projection of the automobile mainly uses CarPlay, Android Auto and CarLife, and most of the above methods can be used only by corresponding support of the automobile on hardware.
If the method can be realized by adopting a pure software mode of DLNA, a user can enjoy some audios and videos on a mobile phone on a large automobile screen. However, modern automobiles have high requirements on information safety, network connections such as WiFi of many automobiles are outside a vehicle machine firewall, and audio and video playing is generally realized through the vehicle machine, so that the vehicle machine and a mobile phone are not in the same network segment, and the traditional DLNA cannot be used.
Disclosure of Invention
The embodiment of the invention provides a media data playing method, a device, equipment and a storage medium, which are used for solving the problems in the prior art and can realize screen projection in an information security environment.
In a first aspect, an embodiment of the present invention provides a media data playing method, including:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller;
receiving a webpage address sent by the digital media controller after receiving the feedback information;
and acquiring media data from the digital media server according to the webpage address and playing the media data.
In a second aspect, an embodiment of the present invention further provides a media data playing apparatus, where the apparatus includes:
the first sending module is used for sending feedback information to the digital media controller after receiving the request information sent by the digital media controller;
the first receiving module is used for receiving a webpage address sent by the digital media controller after receiving the feedback information;
and the playing module is used for acquiring the media data from the digital media server according to the webpage address and playing the media data.
In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement the media data playing method according to any one of the embodiments of the present invention.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the media data playing method according to any one of the embodiments of the present invention.
The embodiment of the invention transmits feedback information to the digital media controller after receiving the request information transmitted by the digital media controller; receiving a webpage address sent by the digital media controller after receiving the feedback information; and acquiring media data from the digital media server according to the webpage address, and playing the media data so as to realize screen projection through a DLNA protocol in an information security environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart of a media data playing method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a media data playing apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a computer device in a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example one
Fig. 1 is a flowchart of a media data playing method according to an embodiment of the present invention, where this embodiment is applicable to a situation of media data playing, and the method may be executed by a media data playing apparatus according to an embodiment of the present invention, where the apparatus may be implemented in a software and/or hardware manner, as shown in fig. 1, the method specifically includes the following steps:
and S110, after receiving the request information sent by the digital media controller, sending feedback information to the digital media controller.
The request information may be a request sent by a Digital Media Controller (DMC) during device discovery.
The digital media controller may be a mobile terminal, for example, a mobile phone or a tablet, which is not limited in this embodiment of the present invention.
The feedback information may be set content, and may be, for example: i can play or may be a set identifier, which is not limited in this embodiment of the present invention.
Specifically, after receiving request information sent by a Digital Media Controller (DMC), a DMR (Digital Media Renderer) sends feedback information to the Digital Media Controller, where the DMR may be a vehicle-mounted screen or other devices, and the embodiments of the present invention are not limited thereto.
And S120, receiving the webpage address sent by the digital media controller after receiving the feedback information.
The URL is a Media URL that the DMC (Digital Media Controller) obtains from a DMS (Digital Media Server) for playing. The DMS may be a media playing server, which is not limited in this embodiment of the present invention.
Specifically, after finding the DMR device, the DMC knows that a video to be played can be projected to the DMR to be played, the DMC obtains a URL of the played media from the DMS, and sends the URL to the DMR, and the DMR receives the URL sent by the DMC.
S130, acquiring media data from the digital media server according to the webpage address, and playing.
And the media data is the media data corresponding to the webpage address.
Specifically, after finding the DMR device, the DMC knows that a video to be played can be projected to the DMR for playing, the DMC acquires a URL of the played media from the DMS and sends the URL to the DMR, the DMR receives the URL sent by the DMC, and the DMR acquires media data from the DMS according to the URL and plays the media data.
Optionally, the method further includes:
receiving a control signal transmitted by the digital media controller;
and forwarding the control signal to a playing device to control the playing of the playing device.
The playing device may be a DMR-player device, or may be other playing devices, which is not limited in this embodiment of the present invention.
Specifically, a control signal sent by the digital media controller is received; the control signal is forwarded to a playing device to control playing of the playing device, for example, the DMR-proxy is a proxy of the DMR, and when the DMC performs device discovery, the DMC can reply to establish a connection with the DMC. And the DMR-proxy receives the control signal sent by the DMC and forwards the control signal to the DMR-player so as to control the playing of the DMR-player.
Optionally, the method further includes:
receiving the playing state information of the playing device;
and sending the playing state information to the digital media controller.
Specifically, receiving play state information of the play device; and sending the playing state information to the digital media controller, for example, receiving the playing state of the DMR-player and feeding the playing state back to the DMC.
Optionally, after receiving the request information sent by the digital media controller, sending feedback information to the digital media controller, where the sending feedback information includes:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller through proxy equipment, wherein the proxy equipment is outside a firewall.
The proxy device may be a DMR-proxy, or other proxy devices, which is not limited in this embodiment of the present invention.
In one specific example, a DMC (Digital Media Controller) discovers DMR (Digital Media Renderer) devices and knows that video to be played can be projected to the DMR for playing. The DMC obtains the URL of the played Media from a DMS (Digital Media Server) and sends the URL to the DMR. And the DMR establishes data connection with the DMS, and acquires and plays the media data from the DMS. However, in the DLNA, the DMC and the DMR are required to be in the same network segment, and the device can be successfully found, but in the use scene of the automobile, a firewall is often arranged between the host capable of supporting video playing and the mobile phone, so that the DMC cannot find the DMR, and the DLNA cannot be used. DMR systems are actually divided into two modules: 1. an interaction module with the DMC, supporting device discovery, receiving control information from the DMC and feeding back status information to the DMC; 2. and the DMS interaction module establishes data connection with the DMS, and receives and plays the data from the DMS. The two above modules of the DMR are separated, respectively: A. realizing DMR-proxy outside the firewall to interact with the DMC; B. and the solid DMR-player in the vehicle machine system interacts with the DMS.
The DMR-proxy is a proxy device of the DMR that can reply when the DMC performs device discovery, thereby establishing a connection with the DMC. The DMR-proxy receives a control signal sent by the DMC and forwards the control signal to the DMR-player so as to control the playing of the DMR-player; and simultaneously receiving the play state of the DMR-player and feeding the play state back to the DMC.
According to the technical scheme of the embodiment, after request information sent by a digital media controller is received, feedback information is sent to the digital media controller; receiving a webpage address sent by the digital media controller after receiving the feedback information; and acquiring media data from the digital media server according to the webpage address, and playing the media data so as to realize screen projection through a DLNA protocol in an information security environment.
Example two
Fig. 2 is a schematic structural diagram of a media data playing apparatus according to a second embodiment of the present invention. The present embodiment is applicable to the case of media data playing, the apparatus may be implemented in a software and/or hardware manner, and the apparatus may be integrated in any device that provides a function of media data playing, as shown in fig. 2, where the media data playing apparatus specifically includes: a first transmitting module 210, a first receiving module 220, and a playing module 230.
The first sending module 210 is configured to send feedback information to a digital media controller after receiving request information sent by the digital media controller;
a first receiving module 220, configured to receive a webpage address sent by the digital media controller after receiving the feedback information;
the playing module 230 is configured to obtain media data from the digital media server according to the webpage address and play the media data.
Optionally, the method further includes:
the second receiving module is used for receiving the control signal sent by the digital media controller;
and the control module is used for forwarding the control signal to the playing equipment so as to control the playing of the playing equipment.
Optionally, the method further includes:
a third receiving module, configured to receive play status information of the play device;
and the second sending module is used for sending the playing state information to the digital media controller.
Optionally, the sending module is specifically configured to:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller through proxy equipment, wherein the proxy equipment is outside a firewall.
The product can execute the method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
According to the technical scheme of the embodiment, after request information sent by a digital media controller is received, feedback information is sent to the digital media controller; receiving a webpage address sent by the digital media controller after receiving the feedback information; and acquiring media data from the digital media server according to the webpage address, and playing the media data so as to realize screen projection through a DLNA protocol in an information security environment.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a computer device in a third embodiment of the present invention. FIG. 3 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 3 is only an example and should not impose any limitation on the scope of use or functionality of embodiments of the present invention.
As shown in FIG. 3, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 3, and commonly referred to as a "hard drive"). Although not shown in FIG. 3, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, for example, implementing a media data playing method provided by an embodiment of the present invention:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller;
receiving a webpage address sent by the digital media controller after receiving the feedback information;
and acquiring media data from the digital media server according to the webpage address and playing the media data.
Example four
A fourth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the media data playing method provided in all the embodiments of the present invention:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller;
receiving a webpage address sent by the digital media controller after receiving the feedback information;
and acquiring media data from the digital media server according to the webpage address and playing the media data.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for playing media data, comprising:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller;
receiving a webpage address sent by the digital media controller after receiving the feedback information;
and acquiring media data from the digital media server according to the webpage address and playing the media data.
2. The method of claim 1, further comprising:
receiving a control signal transmitted by the digital media controller;
and forwarding the control signal to a playing device to control the playing of the playing device.
3. The method of claim 2, further comprising:
receiving the playing state information of the playing device;
and sending the playing state information to the digital media controller.
4. The method of claim 1, wherein transmitting feedback information to the digital media controller after receiving the request information transmitted by the digital media controller comprises:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller through proxy equipment, wherein the proxy equipment is outside a firewall.
5. A media data playback apparatus, comprising:
the first sending module is used for sending feedback information to the digital media controller after receiving the request information sent by the digital media controller;
the first receiving module is used for receiving a webpage address sent by the digital media controller after receiving the feedback information;
and the playing module is used for acquiring the media data from the digital media server according to the webpage address and playing the media data.
6. The apparatus of claim 5, further comprising:
the second receiving module is used for receiving the control signal sent by the digital media controller;
and the control module is used for forwarding the control signal to the playing equipment so as to control the playing of the playing equipment.
7. The apparatus of claim 6, further comprising:
a third receiving module, configured to receive play status information of the play device;
and the second sending module is used for sending the playing state information to the digital media controller.
8. The apparatus of claim 6, wherein the sending module is specifically configured to:
after receiving request information sent by a digital media controller, sending feedback information to the digital media controller through proxy equipment, wherein the proxy equipment is outside a firewall.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1-5 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-5.
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| CN114205664B (en) * | 2021-12-06 | 2023-09-12 | 抖音视界有限公司 | Screen projection method, screen projection device, screen projection display device, screen projection system and medium |
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