CN115278319A - Screen projection data transmission method and device, electronic equipment and storage medium - Google Patents
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- 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
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- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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Abstract
The present disclosure relates to a screen projection data transmission method, device, electronic device and storage medium, including: receiving screen projection data sent by first equipment, wherein the screen projection data at least comprise network detection data; determining target receiving time for receiving network detection data within preset times; the adjustment strategy of the screen projection data coding parameters is determined based on the relation between the target receiving time and the preset receiving time, the normal sending of the screen projection data between the first device and the second device is guaranteed, and the network detection data is sent based on the screen projection channel established by the first device and the second device, so that the network state detection is not required to be additionally started on the second device for the thread, and the waste of system resources is avoided.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for transmitting screen projection data, an electronic device, and a storage medium.
Background
With the development of the technology in the technical field of computers, the appearance of the internet brings great convenience to modern life, the rapid development in the field of mobile communication terminals enables the form of communication terminals to be more and more diversified, more convenience is provided for the life of people, and users can perform information interaction by using various types of terminal equipment, for example, a picture displayed in a mobile phone is projected on a television screen, the picture information displayed in the mobile phone is transmitted to the television in a frame format by means of network transmission, and the television broadcasts the picture after receiving the picture information transmitted by the mobile phone, so that the screen projection function can be realized.
Generally, the transmission of the screen projection data between the screen projection data source end and the video playing end is data transmission under a local area network. In the process of data transmission, unstable conditions such as delay, jitter, packet loss and the like caused by a network can be encountered, video playing is blocked, even screen projection is interrupted, and the experience of a user is very poor.
In the prior art, in order to dynamically monitor a network state, a thread is mostly started at a video playing end, a Ping command (Packet Internet Groper command), an IP Address (Internet Protocol Address) of a Ping screen projection data source end are continuously called, a return time of the Ping command is obtained, and whether the network state is abnormal or not is determined by judging the return time of the Ping command.
However, in the prior art, the detection method based on the above would occupy system resources, and cause waste of system resources.
Disclosure of Invention
To solve the technical problem or at least partially solve the technical problem, the present disclosure provides a screen projection data transmission method, apparatus, electronic device, and storage medium.
In a first aspect, an embodiment of the present disclosure provides a screen projection data transmission method, including:
receiving screen projection data sent by first equipment, wherein the screen projection data at least comprise network detection data;
determining target receiving time for receiving the network detection data within preset times;
and determining an adjustment strategy of the screen projection data coding parameters based on the relation between the target receiving time and the preset receiving time.
As an implementable embodiment, optionally, the determining the target receiving time for receiving the network detection data within the preset number of times includes:
when the number of times of receiving the network detection data is equal to a preset number of times, sequentially acquiring the receiving time of receiving each network detection data;
determining a time difference between the receiving time of the Nth network detection data and the receiving time of the N-1 th network detection data based on the obtained receiving time of each network detection data, wherein N is an integer greater than or equal to 1;
and determining the target receiving time according to the time difference and the preset times.
As an implementable manner, optionally, the determining the target receiving time according to the time difference and the preset number of times includes:
summing the time difference between the receiving time of the Nth received network detection data and the receiving time of the N-1 th received network detection data to determine a target time difference;
and carrying out quotient calculation processing on the target time difference value and preset times to determine target receiving time.
As an implementation, optionally, the projection data encoding parameters include a data encoding rate and a data resolution;
the determining an adjustment strategy of the projection data coding parameters according to the relation between the target receiving time and the preset receiving time comprises the following steps:
when the target receiving time is larger than the preset receiving time, sending an instruction to the first device to instruct the first device to reduce the data coding rate and/or the data resolution.
As an implementable manner, optionally, when the instruction is sent to the first device, the method further includes:
and sending prompt information to the first equipment and/or the second equipment so as to display the prompt information through the first equipment and/or the second equipment.
As an implementable manner, optionally, before sending the instruction to the first device, the method further includes:
acquiring the network bandwidth of a communication channel between the second equipment and the first equipment;
when the network bandwidth of the communication channel is 2.4G, controlling the second device to be switched to the communication channel with the network bandwidth of 5.0G;
determining the relation between the target receiving time for receiving the network detection data and the preset receiving time;
the sending an instruction to the first device includes:
and when the target receiving time is greater than or equal to the preset receiving time, sending an instruction to the first equipment to instruct the first equipment to reduce the data coding rate and/or the data resolution.
As an implementation manner, optionally, the receiving the screen projection data sent by the first device includes:
and receiving screen projection data sent by the first equipment when the video data and/or the audio data played by the first equipment are/is acquired as dynamic data.
In a second aspect, an embodiment of the present disclosure provides a screen projection data transmission device, including:
the device comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving screen projection data sent by first equipment, and the screen projection data at least comprises network detection data;
the target receiving time determining module is used for determining the target receiving time for receiving the network detection data within preset times;
and the adjustment parameter determining module is used for determining an adjustment strategy of the projection data coding parameters based on the relation between the target receiving time and the preset receiving time.
In a third aspect, an embodiment of the present disclosure provides an electronic device, including:
one or more processors;
a storage device to store one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a method as in any one of the first aspects.
In a fourth aspect, the embodiments of the present disclosure provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method according to any one of the first aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the embodiment of the disclosure provides a screen projection data transmission method and device, electronic equipment and a storage medium, wherein the screen projection data sent by first equipment are received, and at least comprise network detection data; determining a target receiving time for receiving the network detection data; the method comprises the steps that an adjustment strategy of screen projection data coding parameters is determined based on the relation between target receiving time and preset receiving time, namely, the second device receives screen projection data sent by the first device, the screen projection data comprise network detection data, after the second device receives the network detection data each time, the target receiving time of receiving the network detection data is determined based on the current system time of the second device, if the network between the first device and the second device is smooth, the time interval of receiving the network detection data each time is within the preset receiving time range, if the network between the first device and the second device is abnormal, the time interval of receiving the network detection data each time can greatly come in and go out of the preset receiving time, the network state between the first device and the second device is determined by evaluating the relation between the target receiving time of receiving the network detection data and the preset receiving time, the adjustment strategy of the screen projection data coding parameters is further determined, the normal sending of the screen projection data between the first device and the second device is ensured, and the network detection data are sent based on a screen projection channel established by the first device and the second device, so that the external resource detection thread is not needed to be started.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1A is a system network architecture diagram of a method for transmitting screen projection data according to an embodiment of the present disclosure;
fig. 1B is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;
fig. 2A is a schematic flowchart of a screen projection data transmission method according to an embodiment of the disclosure;
fig. 2B is a signal flow diagram illustrating a method for transmitting screen projection data according to an embodiment of the disclosure;
fig. 3A is a schematic flowchart of another method for transmitting screen projection data according to an embodiment of the disclosure;
fig. 3B is a signal flow diagram of another method for transmitting screen projection data according to an embodiment of the disclosure;
FIG. 3C is a schematic diagram of projection data provided by an embodiment of the present disclosure;
FIG. 3D is a schematic diagram of another exemplary projection data provided by embodiments of the present disclosure;
fig. 4A is a schematic flowchart of another method for transmitting screen projection data according to an embodiment of the present disclosure;
fig. 4B is a signal flow diagram illustrating another method for transmitting screen projection data according to an embodiment of the disclosure;
fig. 5A is a schematic flow chart diagram of another method for transmitting screen projection data according to an embodiment of the present disclosure;
fig. 5B is a signal flow diagram of another method for transmitting screen projection data according to an embodiment of the present disclosure;
fig. 6A is a schematic flowchart of another method for transmitting screen projection data according to an embodiment of the present disclosure;
fig. 6B is a signal flow diagram illustrating another method for transmitting screen projection data according to an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of a projection screen data transmission device according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1A schematically shows a screen projection system network architecture diagram of a screen projection data transmission method according to an embodiment of the present application. The screen projection system network architecture diagram includes a first device 10, a second device 20, a router 30, a server 40, and the like. Wherein: the first device can be used as a sending end in a screen projection system network architecture and is used for sending multimedia content and various instructions to the second device. In an exemplary embodiment, the first device includes, but is not limited to, a smartphone, a tablet, a gaming console, a laptop computer, and the like. The second device, which can be a display end in a network architecture of the screen projection system, is used for receiving the multimedia content and various instructions of the first device and synchronously broadcasting the received multimedia content to a display panel of the device itself or a display panel of an associated device. The second device may be a related device with a larger screen, such as a virtual reality device, a set-top box, a smart television, a vehicle terminal, a large outdoor display panel, or the like, or may be a related device with a smaller screen, such as a smart phone, a tablet computer, a laptop computer, or the like.
The router can be used as a gateway in a screen projection system network architecture and is used for establishing a local area network and providing internet services. A router is capable of providing a local connection between a first device and a second device.
The server can be used as a cloud device in a screen projection system network architecture and is used for providing cloud services, such as cloud account management services and the like. The server may be a rack server, a blade server, a tower server or a rack server (including an independent server or a server cluster composed of a plurality of servers), and the like.
The first device may discover the second device through the first network or the second network and establish a network connection with the second device based on the first network or the second network. Through the established network connection, the first device can put the multimedia content needing to be put into the second device and play the multimedia content through the second device. The first network may be a local area network, which may be a wired local area network or a wireless local area network. As shown in fig. 1A, the wireless local area network may be a Wi-Fi network formed by routers 8. The second network may be a wide area network, such as the internet. The wide area network may include physical links such as coaxial cable links, twisted pair cable links, fiber optic links, combinations thereof, and the like. The wide area network may also include wireless links, such as cellular links, satellite links, and the like.
In an exemplary embodiment, as shown in fig. 1B, the first and second apparatuses include at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.
In some embodiments the controller comprises a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.
The display 260 includes a display screen component for presenting a picture, and a driving component for driving image display, a component for receiving an image signal from the controller output, performing display of video content, image content, and a menu manipulation interface, and a user manipulation UI interface.
The display 260 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.
The communicator 220 is a component for communicating with an external device or a server according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the external control apparatus 100 or the server 400 through the communicator 220.
A user interface for receiving control signals for controlling the apparatus 100 (e.g., an infrared remote control, etc.).
The detector 230 is used to collect signals of an external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.
The external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. Or may be a composite input/output interface formed by the plurality of interfaces.
The tuner demodulator 210 receives a broadcast television signal through a wired or wireless reception manner, and demodulates an audio/video signal, such as an EPG data signal, from a plurality of wireless or wired broadcast television signals.
In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.
The controller 250 controls the operation of the display device and responds to the user's operation through various software control programs stored in the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.
The user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
A "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.
The respective functions of the first device and the second device are briefly described above.
The first device may perform a screen-casting operation to the second device.
However, in the prior art, in the process of screen projection from the first device to the second device, the transmission of the screen projection data between the first device and the second device is data transmission under the lan, and the conditions of delay, jitter, packet loss and the like brought by the network may be encountered in the data transmission process, which causes that the screen projection data is played in a stuck state, even the screen projection is interrupted, and reduces the use experience of the user.
The embodiment of the disclosure provides a screen projection data transmission method, which includes receiving screen projection data sent by first equipment, wherein the screen projection data at least comprises network detection data; determining a target receiving time for receiving the network detection data; the method comprises the steps that an adjustment strategy of screen projection data coding parameters is determined based on the relation between target receiving time and preset receiving time, namely, the second device receives screen projection data sent by the first device, the screen projection data comprise network detection data, after the second device receives the network detection data each time, the target receiving time of the received network detection data is determined based on the current system time of the second device, if the network between the first device and the second device is smooth, the time interval of the received network detection data each time is within the preset receiving time range, if the network between the first device and the second device is abnormal, the time interval of the received network detection data each time can be greatly in or out of the preset receiving time, the network state between the first device and the second device is determined by evaluating the relation between the target receiving time of the received network detection data and the preset receiving time, the adjustment strategy of the screen projection data coding parameters is further determined, the normal sending of the screen projection data between the first device and the second device is ensured, and the network detection data are sent based on a screen projection channel established by the first device and the second device, therefore, the problem that the waste of the external detection of network resource detection thread is avoided.
Fig. 2A is a schematic flow chart of a screen projection data transmission method provided in an embodiment of the present disclosure, and fig. 2B is a schematic signal flow chart of a screen projection data transmission method provided in an embodiment of the present disclosure, and with reference to fig. 2A and fig. 2B, the screen projection data transmission method includes:
s100, screen projection data sent by the first device are received.
The screen projection data at least comprises network detection data.
Specifically, in a scene of screen projection data transmission, the first device sends screen projection data to the second device. The first device and the second device establish a communication channel based on a preset communication protocol and send screen projection data through the communication channel.
As an implementable manner, the communication protocol of the first device and the second device adopts a TCP protocol.
In the operation of the first device and the second device in each stage of connection, transceiving, disconnection and the like, screen projection data interacted between the first device and the second device comprises video data, audio data and network detection data, wherein the video data, the audio data and the network detection data are sent through the same communication channel.
S200, determining target receiving time for receiving the network detection data within preset times.
The target receiving time of the network test data refers to an average receiving time value of the network test data received within a preset number of times.
In a specific embodiment, during the process of sending the screen projection data to the second device by the first device, the user may set a period for sending the network detection data in a customized manner in the first device, for example, sending one network detection data every 30 ms. Because the network detection data, the video data and the audio data are sent to the second device based on the same communication channel, when the first device triggers sending of one piece of video data at the first time, then triggers sending of one piece of network detection data at the second time, and continues to trigger sending of one piece of network detection data at the third time, wherein the time difference between the second time and the third time is 30ms, the first device between the second time and the third time can trigger sending of the audio data and/or the video data, or can not trigger sending of the audio data and/or the video data, for example, when the picture of the first device is not changed, the sending of the video data is not triggered, and when the first device does not play sound, the sending of the audio data is not triggered. When the first device triggers sending of audio data and/or video data to the second device between the second time and the third time, if a network between the first device and the second device is abnormal, data delay occurs to the audio data and/or the video data sent between the second time and the third time due to a network reason, and the audio data, the video data and the network detection data are sent through one communication channel, so that the audio data and/or the video data sending delay caused by the network delay can influence the second device to receive the network detection data sent at the third time.
It should be noted that, in the foregoing embodiment, the exemplary representation shows that the preset number of times is 1, in other possible implementations, the preset number of times may also be N, and when the preset number of times is N, the receiving time for receiving each network detection data is sequentially obtained; and determining a time difference value between the receiving time of the Nth network detection data and the receiving time of the N-1 th network detection data based on the obtained receiving time of each network detection data, and then determining the target receiving time according to the time difference value and the preset times.
S300, determining an adjustment strategy of the screen projection data coding parameters based on the relation between the target receiving time and the preset receiving time.
By analyzing the relation between the target receiving time of the network detection data received by the second device and the preset receiving time, the network condition of a screen projection channel between the first device and the second device can be determined, and then the adjustment strategy of the screen projection data coding parameter is determined.
The preset receiving time is a period for the first device to send the network detection data, which is set by a user in a self-defined manner, for example, the first device sends the network detection data to the second device once at an interval of 30 ms.
The screen projection data transmission method provided by the embodiment of the disclosure receives screen projection data sent by first equipment, wherein the screen projection data at least comprises network detection data; determining target receiving time for receiving network detection data; the method comprises the steps that an adjustment strategy of screen projection data coding parameters is determined based on the relation between target receiving time and preset receiving time, namely, the second device receives screen projection data sent by the first device, the screen projection data comprise network detection data, after the second device receives the network detection data each time, the target receiving time of receiving the network detection data is determined based on the current system time of the second device, if the network between the first device and the second device is smooth, the time interval of receiving the network detection data each time is within the preset receiving time range, if the network between the first device and the second device is abnormal, the time interval of receiving the network detection data each time can greatly come in and go out of the preset receiving time, the network state between the first device and the second device is determined by evaluating the relation between the target receiving time of receiving the network detection data and the preset receiving time, the adjustment strategy of the screen projection data coding parameters is further determined, the normal sending of the screen projection data between the first device and the second device is ensured, and the network detection data are sent based on a screen projection channel established by the first device and the second device, so that the external resource detection thread is not needed to be started.
Fig. 3A is a schematic flow chart of another screen projection data transmission method provided in the embodiment of the present disclosure, fig. 3B is a schematic signal flow chart of another screen projection data transmission method provided in the embodiment of the present disclosure, and with reference to fig. 3A and fig. 3B, a specific implementation manner of step S200 includes:
s201, when the times of receiving the network detection data are equal to the preset times, sequentially acquiring the receiving time of receiving each network detection data.
In a specific embodiment, in order to avoid excessively and frequently calculating the target receiving time of the network detection data, by determining the number of times the second device receives the network detection data, when the number of times the second device receives the network detection data is less than a preset number, the step of determining the target receiving time of the network detection data received within the preset number is not performed, so that the waste of system resources caused by frequently calculating the target receiving time of the network detection data is avoided.
And when the times that the second device receives the network detection data is equal to the preset times, acquiring the receiving time corresponding to each time that the network detection data is received within the preset times.
For example, if the preset number of times is set to 30 times, the second device detects that the network detection data is received at the 30 th time, and at this time, the second device sequentially obtains the time of receiving the network detection data at the previous 30 times from the server.
S202, determining a time difference value between the receiving time of the Nth network detection data and the receiving time of the N-1 st network detection data based on the obtained receiving time of each network detection data.
Wherein N is an integer greater than or equal to 1.
The time difference between the network detection data received twice in the first time and the network detection data received thirty times in the last preset times stored by the server of the second device, the time difference between the network detection data received twice and the network detection data received for the first time, and the time difference between the network detection data received for the thirty times and the network detection data received for the twenty-ninth time are calculated.
Specifically, the server of the second device stores the time corresponding to each time of receiving the network detection data, as shown in fig. 3C or 3D, when it is required to determine the target receiving time of receiving the network detection data within the preset number of times, the server may obtain the time corresponding to each time of receiving the network detection data within the preset number of times.
It should be noted that fig. 3C exemplarily shows that the target receiving time for receiving the network detection data within the preset number is very average, which shows that the data is sent every 30 milliseconds by the first device, and the second device basically receives the data every 30 milliseconds or so, and this represents that the network between the first device and the second device is unobstructed. In another possible implementation, as shown in fig. 3D, the target receiving time of the second device receiving the network detection data within the preset number of times is discrete, for example, the target receiving time of the first device receiving the network detection data is 130ms, the target receiving time of the second device receiving the network detection data is 0ms, and the target receiving time of the fourth device receiving the network detection data is 0ms, which causes the above phenomenon that the first 4 network detection packets are received once after the 4 data are delayed by 130ms due to very congested network, so the receiving time of the 2 nd, 3 rd, and 4 th data is 0ms, but as long as the average target receiving time of each time of receiving the network detection data within the preset number of times is 30ms, it can be characterized that the network between the first device and the second device is unobstructed.
And S203, determining target receiving time according to the time difference and the preset times.
As a specific implementation manner, determining the target receiving time according to the time difference and the preset number of times includes:
summing the time difference between the receiving time of the Nth time of receiving the network detection data and the receiving time of the N-1 th time of receiving the network detection data to determine a target time difference; and carrying out quotient calculation processing on the target time difference value and the preset times to determine the target receiving time.
For example, referring to fig. 3C, after acquiring a time T1 corresponding to the first time of receiving the network detection data, a time T2 corresponding to the second time of receiving the network detection data, and a time T30 corresponding to the thirtieth time of receiving the network detection data, it may be determined that a time difference between a time when the network detection data is received the nth time of receiving the network detection data and a time when the network detection data is received the nth-1 time of receiving the network detection data is TN-1 within the preset number, and then summing the acquired N time differences to determine a target time difference T = (T1-T30 ') + (T2-T1) +. + (T30-T29), where T30' is a time when the network detection data is received the thirtieth time within the last preset number of times. After the target time difference is determined, quotient processing is carried out on the target time difference and the preset times, and the target receiving time is determined, namely the target receiving time T = T/30.
According to the screen projection data transmission method provided by the embodiment of the disclosure, when the number of times of receiving the network detection data is equal to the preset number of times, based on the obtained receiving time of each network detection data, the difference value between the receiving time of receiving the network detection data at the Nth time and the receiving time of receiving the network detection data at the N-1 st time and the preset number of times are determined, and the target receiving time is determined, that is, the target receiving time is determined when the preset number of times is met, so that the situation that one target receiving time is determined every time one network detection data is received is avoided, and the second target receiving time is frequently calculated by the second equipment, and the waste of system resources is caused.
Fig. 4A is a schematic flow chart of another method for transmitting screen projection data according to an embodiment of the present disclosure, fig. 4B is a schematic signal flow chart of another method for transmitting screen projection data according to an embodiment of the present disclosure, and based on the above embodiments, as shown in fig. 4A and fig. 4B, a specific implementation manner of step S300 includes:
and S303, when the target receiving time is greater than the preset receiving time, sending an instruction to the first equipment to instruct the first equipment to reduce the data coding rate and/or the data resolution.
Generally, the projection data encoding parameters include a data encoding rate, a data resolution, and the like. Where the coding rate refers to the size of data coded by the encoder per second, the unit is kbps, for example 800kbps represents that the encoder generates 800KB (or 100 KB) of data per second. The resolution is the number of pixel points included in a unit-inch image. The adjustment strategy of the projection data coding parameters is different parameter adjustment modes which are made according to the estimated variation degree of the network bandwidth. For example, on the premise of not influencing the conditions of the user's extreme subjective definition experience and the mortgage experience, when the estimated degree of the reduction of the network bandwidth is small, the data coding rate is preferentially adjusted; when the estimated reduction degree of the network bandwidth is larger, the encoding rate and the resolution ratio can be adjusted simultaneously, so that the effect of reducing the bandwidth occupation is achieved, and the blocking of the projected video data or the audio data is reduced. The specific value of each parameter adjustment can be preset to establish a correlation function relationship between the parameter value and the network bandwidth change value, and the specific parameter adjustment value is determined according to the function. After the adjustment strategy of the specific data encoding parameters is determined, the first device encodes the screen projection data which is not encoded by adopting the adjusted new data encoding parameters, and transmits the encoded screen projection data to the second device. Certainly, the in-process of throwing the screen data to not encoding yet carries out the code based on new data encoding parameter after the adjustment, still can send network detection data, and then predicts the network bandwidth, and timely adjustment data encoding parameter lets throw the screen because the uncontrollable proruption of network can recover fast, reduces to throw the screen card and pause, throws the condition of screen interrupt even, promotes and is used for experiencing.
Fig. 5A is a schematic flow diagram of another method for transmitting screen projection data provided by an embodiment of the present disclosure, fig. 5B is a schematic signal flow diagram of another method for transmitting screen projection data provided by an embodiment of the present disclosure, and on the basis of the foregoing embodiment, as shown in fig. 5A and fig. 5B, when the method for transmitting screen projection data executes step S303, the method further includes:
s304, sending the prompt information to the first device and/or the second device, and displaying the prompt information through the first device and/or the second device.
As an implementable manner, for example, when the second device detects that the network card of the first device and the network card of the second device is paused, a prompt message is returned to the first device through the communication channel, so that the prompt message "network card is detected by popping up the prompt message on the display screen of the first device," you can optimize screen projection card by selecting the screen projection data encoding parameter option, "and further prompt the user to select to adjust the screen projection data encoding parameter at the first device, and at this time, the first device re-encodes the screen projection data based on the adjusted screen projection data encoding parameter and sends the re-encoded screen projection data to the second device.
As another implementable manner, for example, when the second device detects network pause of the first device and the second device, by outputting a prompt message to pop up a prompt message "network pause is detected" on a display screen of the second device, you can select a low-resolution option to optimize screen projection pause ", and further prompt the user to select a screen projection data encoding parameter corresponding to the received screen projection data on the second device, and return the selected screen projection data encoding parameter to the first device through a communication channel, after receiving the screen projection data encoding parameter returned by the communication channel, the first device re-encodes the screen projection data according to the screen projection data encoding parameter selected by the user, and sends the re-encoded screen projection data to the second device.
Fig. 6A is a schematic flow chart of another method for transmitting screen projection data according to an embodiment of the present disclosure, and fig. 6B is a schematic signal flow chart of another method for transmitting screen projection data according to an embodiment of the present disclosure, where on the basis of the embodiment corresponding to fig. 4A, as shown in fig. 6A and fig. 6B, before the step of sending the instruction to the first device, the method further includes:
s301, acquiring the network bandwidth of a communication channel between the second device and the first device.
The network bandwidth refers to a maximum data rate that can be passed from the first device to the second device in a unit time. The estimation of the network bandwidth may be understood as determining a trend of the network bandwidth in the following time. The network bandwidth and the data transmission time have opposite variation trends. The smaller the network bandwidth, the longer the data transmission, and the larger the network bandwidth, the shorter the data transmission. In a specific embodiment, when it is determined that the target receiving time is greater than the preset receiving time, at this time, it may be determined that a network state of a screen projection channel between the first device and the second device is abnormal, and a cause of the network state abnormality may be that a network bandwidth of a communication channel between the first device and the second device is relatively small, so that the network bandwidth of the communication channel between the first device and the second device may be first obtained, and whether the network state abnormality of the first device and the second device is caused by relatively low connected network bandwidth is determined by determining a network bandwidth corresponding to the communication channel between the first device and the second device, thereby avoiding that a user experience is affected by relatively low resolution of screen projection data received by the second device due to direct adjustment of a screen projection data encoding parameter.
S302, when the network bandwidth of the communication channel is 2.4G, the second device is controlled to be switched to the communication channel with the network bandwidth of 5.0G.
When the network bandwidth of the communication channel between the second device and the first device is obtained to be 2.4G, the communication channel with the network bandwidth of 5.0G can be switched by controlling the second device, so that the network bandwidth of the communication channel between the second device and the first device is increased, the data transmission efficiency is improved, and the problem that the resolution ratio of screen projection data received by the second device is low and the use experience of a user is influenced due to the fact that the data transmission efficiency is improved by directly adjusting screen projection data coding parameters can be avoided.
At this time, the specific embodiment of step S303 includes:
s3030, after the communication channel of the 5.0G network bandwidth is switched, determining the relation between the target receiving time of the received network detection data and the preset receiving time.
After the transmission efficiency of the screen projection data between the first device and the second device is improved by adjusting the network bandwidth of the communication channel, in order to avoid the problem that the network of the communication channel between the first device and the second device is abnormal even if the network bandwidth is increased, the relation between the target receiving time of the received network detection data and the preset receiving time is determined after the communication channel of the 5.0G network bandwidth is switched.
S3031, when the target receiving time is greater than the preset receiving time, sending an instruction to the first device to instruct the first device to decrease the data encoding rate and/or the data resolution.
When the target receiving time is longer than the preset receiving time, the problem that the communication channel network is abnormal still exists in the communication channel after the representation and adjustment of the network broadband is carried out, at the moment, an indication instruction is sent to the first equipment to indicate the first equipment to reduce the data encoding rate and/or the data resolution, so that the data transmission efficiency is improved, the problems that screen projection data is blocked and the like are avoided, and the use feeling of a user is influenced are solved.
As an implementable manner, optionally, when the video data and/or the audio data played by the first device are obtained as dynamic data, the screen projection data sent by the first device is received.
In order to reduce network load as much as possible, when video data and/or audio data played by first equipment are not changed, the first equipment suspends screen recording and does not generate screen projection data any more, only when the video data and/or the audio data played by the first equipment are changed, screen projection data are generated and subjected to video coding and/or audio coding, the screen projection data are sent to second equipment through a communication channel, the screen projection data sent by the first equipment are received at the moment, and the network state of the communication channel between the first equipment and the second equipment is detected based on network detection data included in the screen projection data.
Fig. 7 is a schematic structural diagram of a screen projection data transmission device according to an embodiment of the present disclosure, and as shown in fig. 7, the screen projection data transmission device includes:
a receiving module 710, configured to receive screen projection data sent by a first device, where the screen projection data at least includes network detection data;
a target receiving time determining module 720, configured to determine a target receiving time for receiving the network detection data within a preset number of times;
and an adjusting parameter determining module 730, configured to determine an adjusting policy for the screen projection data encoding parameter based on a relationship between the target receiving time and the preset receiving time.
The embodiment of the disclosure provides a screen projection data transmission device, which receives screen projection data sent by first equipment, wherein the screen projection data at least comprises network detection data; determining target receiving time for receiving network detection data; the method comprises the steps that an adjustment strategy of screen projection data coding parameters is determined based on the relation between target receiving time and preset receiving time, namely, the second device receives screen projection data sent by the first device, the screen projection data comprise network detection data, after the second device receives the network detection data each time, the target receiving time of the received network detection data is determined based on the current system time of the second device, if the network between the first device and the second device is smooth, the time interval of the received network detection data each time is within the preset receiving time range, if the network between the first device and the second device is abnormal, the time interval of the received network detection data each time can be greatly in or out of the preset receiving time, the network state between the first device and the second device is determined by evaluating the relation between the target receiving time of the received network detection data and the preset receiving time, the adjustment strategy of the screen projection data coding parameters is further determined, the normal sending of the screen projection data between the first device and the second device is ensured, and the network detection data are sent based on a screen projection channel established by the first device and the second device, therefore, the problem that the waste of the external detection of network resource detection thread is avoided.
As an implementation manner, optionally, the target receiving time determining module includes:
the receiving time determining unit is used for sequentially acquiring the receiving time of each network detection data when the number of times of receiving the network detection data is equal to the preset number of times;
a time difference determining unit, configured to determine, based on the obtained receiving time of each network detection data, a time difference between the receiving time of the network detection data received at the nth time and the receiving time of the network detection data received at the N-1 st time, where N is an integer greater than or equal to 1;
and the target receiving time determining unit is used for determining the target receiving time according to the time difference value and the preset times.
As an implementable manner, optionally, a specific implementation manner of the target receiving time determining unit includes:
summing the time difference between the receiving time of the Nth received network detection data and the receiving time of the N-1 th received network detection data to determine a target time difference;
and carrying out quotient calculation processing on the target time difference value and the preset times to determine the target receiving time.
As an implementable manner, optionally, the adjustment parameter determination module includes:
and the instruction sending unit is used for sending an instruction to the first device to instruct the first device to reduce the data coding rate and/or the data resolution when the target receiving time is greater than the preset receiving time.
As an implementable manner, optionally, further comprising:
and the prompt message sending module is used for sending the prompt message to the first device and/or the second device so as to display the prompt message through the first device and/or the second device.
As an implementable manner, optionally, further comprising:
the network bandwidth acquisition module is used for acquiring the network bandwidth of a communication channel between the second equipment and the first equipment;
the communication channel switching module is used for controlling the second equipment to be switched to the communication channel with the network bandwidth of 5.0G when the network bandwidth of the communication channel is 2.4G;
at this time, the specific implementation manner of the instruction sending unit includes:
after switching to a communication channel with a 5.0G network bandwidth, determining the relation between target receiving time for receiving network detection data and preset receiving time;
and when the target receiving time is greater than or equal to the preset receiving time, sending an indication instruction to the first device to instruct the first device to reduce the data coding rate and/or the data resolution.
The device provided by the embodiment of the invention can execute the method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
It should be noted that, in the embodiment of the apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The present disclosure also provides an electronic device, comprising: a processor for executing a computer program stored in a memory, the computer program, when executed by the processor, implementing the steps of the above-described method embodiments.
Fig. 8 is a schematic structural diagram of an electronic device provided by the present disclosure, and fig. 8 shows a block diagram of an exemplary electronic device suitable for implementing embodiments of the present invention. The electronic device shown in fig. 8 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 8, the electronic device 800 is in the form of a general purpose computing device. The components of the electronic device 800 may include, but are not limited to: one or more processors 810, a system memory 820, and a bus 830 that couples various system components including the system memory 820 and the processors.
The system memory 820 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 840 and/or cache memory 850. The electronic device 800 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 860 may be used to read from and write to non-removable, nonvolatile magnetic media (commonly referred to as "hard drives"). 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 830 by one or more data media interfaces. System memory 820 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 880 having a set (at least one) of program modules 870, which may include but are not limited to an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may include an implementation of a network environment, may be stored in, for example, system memory 820. Program modules 870 generally perform the functions and/or methodologies of embodiments described herein.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
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 any of a variety of 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 and 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).
The present disclosure also provides a computer program product which, when run on a computer, causes the computer to perform the steps of implementing the above-described method embodiments.
It is noted that, in this document, 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. Also, 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A screen projection data transmission method is characterized by comprising the following steps:
receiving screen projection data sent by first equipment, wherein the screen projection data at least comprises network detection data;
determining target receiving time for receiving the network detection data within preset times;
and determining an adjustment strategy of the screen projection data coding parameters based on the relation between the target receiving time and the preset receiving time.
2. The method of claim 1, wherein determining the target receiving time for receiving the network detection data within a preset number of times comprises:
when the number of times of receiving the network detection data is equal to a preset number of times, sequentially acquiring the receiving time of receiving each network detection data;
determining a time difference value between the receiving time of the network detection data received at the Nth time and the receiving time of the network detection data received at the N-1 st time based on the obtained receiving time of each network detection data, wherein N is an integer greater than or equal to 1;
and determining target receiving time according to the time difference and preset times.
3. The method of claim 2, wherein determining the target receiving time according to the time difference and a preset number of times comprises:
summing the time difference between the receiving time of the Nth received network detection data and the receiving time of the N-1 th received network detection data to determine a target time difference;
and carrying out quotient calculation processing on the target time difference value and preset times to determine target receiving time.
4. The method of claim 1, wherein the screen-shot data encoding parameters include a data encoding rate and a data resolution;
the determining an adjustment strategy of the projection data coding parameters according to the relation between the target receiving time and the preset receiving time comprises the following steps:
and when the target receiving time is greater than the preset receiving time, sending an indication instruction to the first equipment to instruct the first equipment to reduce the data coding rate and/or the data resolution.
5. The method of claim 4, wherein the sending the indication instruction to the first device further comprises:
and sending prompt information to the first equipment and/or the second equipment so as to display the prompt information through the first equipment and/or the second equipment.
6. The method of claim 4, wherein before sending the indication instruction to the first device, further comprising:
acquiring network bandwidth of a communication channel between the second equipment and the first equipment;
when the network bandwidth of the communication channel is 2.4G, controlling the second device to be switched to the communication channel with the network bandwidth of 5.0G;
determining the relation between the target receiving time for receiving the network detection data and the preset receiving time;
the sending an instruction to the first device includes:
and when the target receiving time is greater than or equal to the preset receiving time, sending an instruction to the first equipment to instruct the first equipment to reduce the data coding rate and/or the data resolution.
7. The method of claim 1, wherein receiving screen projection data sent by a first device comprises:
and receiving screen projection data sent by the first equipment when the video data and/or the audio data played by the first equipment are/is acquired as dynamic data.
8. A screen-projecting data transmission device, comprising:
the device comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving screen projection data sent by first equipment, and the screen projection data at least comprises network detection data;
the target receiving time determining module is used for determining the target receiving time for receiving the network detection data within preset times;
and the adjustment parameter determining module is used for determining an adjustment strategy of the projection screen data coding parameters based on the relation between the target receiving time and the preset receiving time.
9. An electronic device, comprising:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of any one of claims 1 to 7.
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| CN117278538A (en) * | 2023-11-22 | 2023-12-22 | 荣耀终端有限公司 | Method for adjusting parameters of encoder and electronic equipment |
| CN117278538B (en) * | 2023-11-22 | 2024-04-16 | 荣耀终端有限公司 | Method for adjusting parameters of encoder and electronic equipment |
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