CN107682541B - Audio control method for screen projection, mobile terminal and storage medium - Google Patents
Audio control method for screen projection, mobile terminal and storage medium Download PDFInfo
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- CN107682541B CN107682541B CN201710896183.3A CN201710896183A CN107682541B CN 107682541 B CN107682541 B CN 107682541B CN 201710896183 A CN201710896183 A CN 201710896183A CN 107682541 B CN107682541 B CN 107682541B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
- H04M1/72433—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for voice messaging, e.g. dictaphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/54—Details of telephonic subscriber devices including functional features of a projector or beamer module assembly
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses an audio control method for screen projection, which comprises the following steps: detecting whether an audio output event exists or not when the mobile terminal performs screen projection by using a screen projection function; when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal; and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function. The invention also discloses a mobile terminal and a computer readable storage medium. The method and the device can realize control of the audio transmission signal in the projection process of the screen of the mobile terminal, thereby avoiding the privacy disclosure of a user at a sending end and the interference to a user at a receiving end.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to an audio control method for screen projection, a mobile terminal and a storage medium.
Background
Along with the rapid development of the electronic industry, the functions of mobile terminals such as smart phones are more and more diversified, wherein screen projection is a relatively innovative and practical function, and the screen image and the audio signal of a sending end can be sent to receiving end equipment (such as a mobile phone, a flat panel, a television and the like) through a wifi channel, so that the receiving end reproduces the screen image and the sound information of the sending end.
In the existing screen projection process, when an audio signal exists at a sending end, the audio signal and a projected image are sent to a receiving end together, for example, when a video is projected, the image and sound of the video are sent to the receiving end together, so that colorful experience is provided for a user at the receiving end; however, the sending end does not have any control measure for collecting and sending sound, when the sending end receives a telephone or a preset alarm ring in the video projection process, the sending end can also send corresponding call sound and alarm sound to the receiving end, at this moment, if privacy information of a sending end user exists in an audio signal, the privacy information can be undoubtedly leaked, and meanwhile, the receiving end user receives an unrelated audio signal and can also cause interference and influence on watching of the video.
Disclosure of Invention
The invention mainly aims to provide an audio control method for screen projection, a mobile terminal and a computer readable storage medium, and aims to realize control of an audio transmission signal in the screen projection process of the mobile terminal, so that the privacy of a user at a sending end is prevented from being leaked and the interference to the user at a receiving end is avoided.
In order to achieve the above object, the present invention provides an audio control method for screen projection, which includes the following steps:
detecting whether an audio output event exists or not when the mobile terminal performs screen projection by using a screen projection function;
when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal;
and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function.
Optionally, before the step of detecting whether there is an audio output event when the mobile terminal performs screen projection by using a screen projection function, the method further includes:
receiving a setting instruction based on the screen projection function, and displaying an audio signal transmission control list according to the setting instruction, wherein a plurality of audio application programs and corresponding audio switches are arranged in the audio signal transmission control list;
and receiving a closing instruction based on the audio switch, and setting the corresponding audio application program as the application program for forbidding projecting the audio signal according to the closing instruction.
Optionally, before the step of detecting whether there is an audio output event when the mobile terminal performs screen projection by using a screen projection function, the method further includes:
receiving a screen projection function starting instruction;
and establishing wireless connection between the mobile terminal and at least one external electronic device according to the screen projection function enabling instruction.
Optionally, after the step of determining whether the audio output event includes an audio signal generated by a preset application program when the audio output event is detected to exist, the method further includes:
and if the audio output event does not contain the audio signal generated by the preset application program, transmitting the audio signal contained in the audio output event to external electronic equipment through the screen projection function.
Optionally, before the step of sending the audio signal included in the audio output event to the external electronic device through the screen projection function, the method further includes:
displaying a user interaction interface containing an audio transmission control;
detecting whether a touch instruction based on the audio transmission control is received;
if yes, executing the following steps: and transmitting the audio signal contained in the audio output event to an external electronic device through the screen projection function.
Optionally, after the step of prohibiting the mobile terminal from transmitting the audio signal to the external electronic device through the screen projection function, the method further includes:
acquiring screen image data of the mobile terminal;
and sending the acquired screen image data to external electronic equipment through the screen projection function.
Optionally, before the step of acquiring the screen image data of the mobile terminal, the method further includes:
dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen;
the step of acquiring the screen image data of the mobile terminal comprises:
screen image data in the projection screen is acquired.
Optionally, after the step of dividing the screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program generating the audio signal in the user screen, and displaying a display picture projected on the screen to an external electronic device in the projection screen, the method further includes:
receiving a full-screen display instruction based on the user screen or the projection screen, and displaying the user screen or the projection screen in a full screen mode according to the full-screen display instruction.
In addition, to achieve the above object, the present invention also provides a mobile terminal, including: the device comprises a memory, a processor and a screen projection audio control program stored on the memory and capable of running on the processor, wherein the screen projection audio control program realizes the steps of the screen projection audio control method when being executed by the processor.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a screen projected audio control program, which when executed by a processor, implements the steps of the screen projected audio control method as described above.
When the mobile terminal uses the screen projection function to perform screen projection, whether an audio output event exists is detected; when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal; and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function. By the method, the audio signal of the preset application program can be prevented from being transmitted to the external electronic equipment, so that the control on the audio transmission signal in the projection process of the screen of the mobile terminal is realized, and the privacy disclosure of a user at a transmitting end and the interference on the user at a receiving end are avoided.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;
fig. 2 is a diagram of a communication network system architecture according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a first exemplary embodiment of a method for controlling audio frequency for screen projection according to the present invention;
fig. 4 is a scene schematic diagram of screen projection performed by the mobile terminal in the embodiment of the present invention;
FIG. 5 is a flowchart illustrating a second embodiment of an audio control method for screen projection according to the present invention;
FIG. 6 is a diagram illustrating an exemplary display interface of an audio signal transmission control list according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a third exemplary embodiment of an audio control method for screen projection according to the present invention;
FIG. 8 is a flowchart illustrating a fourth embodiment of an audio control method for screen projection according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
Based on the above mobile terminal hardware structure, various embodiments of the mobile terminal of the present invention are provided.
Referring to fig. 1, in an embodiment of the mobile terminal of the present invention, the mobile terminal includes: a memory 109, a processor 110, and a screen projected audio control program stored on the memory 109 and executable on the processor 110, the screen projected audio control program when executed by the processor 110 implementing the steps of:
detecting whether an audio output event exists or not when the mobile terminal performs screen projection by using a screen projection function;
when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal;
and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
receiving a setting instruction based on the screen projection function, and displaying an audio signal transmission control list according to the setting instruction, wherein a plurality of audio application programs and corresponding audio switches are arranged in the audio signal transmission control list;
and receiving a closing instruction based on the audio switch, and setting the corresponding audio application program as the application program for forbidding projecting the audio signal according to the closing instruction.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
receiving a screen projection function starting instruction;
and establishing wireless connection between the mobile terminal and at least one external electronic device according to the screen projection function enabling instruction.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
and if the audio output event does not contain the audio signal generated by the preset application program, transmitting the audio signal contained in the audio output event to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
displaying a user interaction interface containing an audio transmission control;
detecting whether a touch instruction based on the audio transmission control is received;
if yes, executing the following steps: and transmitting the audio signal contained in the audio output event to an external electronic device through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
acquiring screen image data of the mobile terminal;
and sending the acquired screen image data to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen;
screen image data in the projection screen is acquired.
Further, the audio control program of the screen projection is executed by the processor 110 to further implement the following steps:
receiving a full-screen display instruction based on the user screen or the projection screen, and displaying the user screen or the projection screen in a full screen mode according to the full-screen display instruction.
The specific embodiment of the mobile terminal of the present invention is substantially the same as the following specific embodiments of the audio control method for screen projection, and will not be described herein again.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial radio access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the hardware structure of the mobile terminal and the communication network system, the invention provides various embodiments of the screen projection audio control method.
The invention provides an audio control method for screen projection.
Referring to fig. 3, fig. 3 is a flowchart illustrating a first embodiment of an audio control method for screen projection according to the present invention, the method includes:
step S10, when the mobile terminal uses the screen projection function to perform screen projection, detecting whether there is audio output event;
in this embodiment, the mobile terminal may be a display device having a screen projection function, such as a smart phone and a tablet computer, and through screen projection, the screen image and the audio signal of the sending end may be sent to a receiving end device (such as a mobile phone, a tablet, a television, and the like) through a wifi channel, so that the receiving end reproduces the screen image and the sound information of the sending end, referring to fig. 4, where fig. 4 is a scene schematic diagram of screen projection performed by the mobile terminal in the embodiment of the present invention.
In the existing screen projection process, when an audio signal exists at a sending end, the audio signal and a projected image are sent to a receiving end together, for example, when a video is projected, the image and sound of the video are sent to the receiving end together, so that colorful experience is provided for a user at the receiving end; however, the sending end does not have any control measure for collecting and sending sound, when the sending end receives a telephone or a preset alarm ring in the video projection process, the sending end can also send corresponding call sound and alarm sound to the receiving end, at this moment, if privacy information of a sending end user exists in an audio signal, the privacy information can be undoubtedly leaked, and meanwhile, the receiving end user receives an unrelated audio signal and can also cause interference and influence on watching of the video. For this reason, the present embodiment provides an audio control method based on screen projection.
The mobile terminal in this embodiment is a sending end of the screen projection data. When screen projection is carried out, firstly, connection between a sending end and a receiving end is established, wherein the connection can be wireless connection or wired connection, and the receiving end can be a smart phone, a tablet personal computer, a PC (personal computer), a smart television, a projector or other electronic display equipment; then, the sending end sends the data to be projected to the receiving end, so that the receiving end reproduces the received projection data on the display screen of the receiving end, in the process, when the sending end plays music, videos or other application programs needing to call a loudspeaker or a receiver, an audio output event is generated, and the mobile terminal can detect whether the audio output event exists in real time.
Further, step S10 may be preceded by: receiving a screen projection function starting instruction; and establishing wireless connection between the mobile terminal and at least one external electronic device according to the screen projection function enabling instruction.
In this embodiment, the external electronic device is a projection data receiving end, and before performing screen projection, the mobile terminal may send a connection request to the external electronic device to establish a wireless connection between the mobile terminal and at least one external electronic device, where the wireless connection needs to support synchronous Display of images and videos between terminals, for example, the wireless connection may be a Wi-Fi Display connection.
Step S20, when it is detected that an audio output event exists, determining whether the audio output event includes an audio signal generated by a preset application program, where the preset application program is a preset application program that prohibits projecting the audio signal;
when the audio output event is detected to exist, the mobile terminal judges whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal. In specific implementation, the application program may be a default of the system, and may also be preset by the user, for example, in order to avoid privacy disclosure during a call, the user may set the phone program to prohibit projection of the audio signal in advance, and in addition, the user may also set another application program that can generate the audio signal but does not want to transmit the audio signal to the outside in a screen projection manner to be the application program that prohibits projection of the audio signal, such as an alarm clock program and a memo reminder program.
If the audio output event includes an audio signal generated by a preset application program, step S30 is executed to prohibit the mobile terminal from transmitting the audio signal to an external electronic device through the screen projection function.
And if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to the external electronic equipment through the screen projection function.
The application scenario of this step may be: the user uses the screen projection function of the mobile terminal to perform screen projection in a conference so as to explain the content of the screen projection to people participating in the conference, the mobile terminal hears the call in the process, the telephone program is an application program which is preset by the user and forbids the projection of the audio signal, at the moment, the mobile terminal sends a forbidding command to forbid the transmission of the audio signal generated by the telephone program to the projection receiving equipment through the screen projection function, and thus, the audio information such as the telephone ring tone, the subsequent call content and the like cannot be transmitted to the projection receiving equipment, so that the call content of the user is protected from being leaked, and the interference and influence brought by the telephone ring tone to the user at the receiving end are avoided.
In addition, while the preset application program is prohibited from transmitting the audio signal to the external electronic device, the mobile terminal may transmit the audio signal that is not prohibited in the audio output event to the external electronic device through the screen projection channel, where the application scenario may be: the user shares the video with others by using the screen projection function of the mobile terminal, the image signal and the audio signal of the video are transmitted to the projection receiving equipment together, in the process, if the mobile terminal listens to the telephone, only the audio signal generated by the telephone is shielded, the audio signal generated by the video is continuously transmitted, and therefore the user at the receiving end is not interrupted to watch the video.
In the embodiment, when the mobile terminal performs screen projection by using a screen projection function, whether an audio output event exists is detected; when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal; and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function. By the method, the audio signal of the preset application program can be prevented from being transmitted to the external electronic equipment, so that the control on the audio transmission signal in the projection process of the screen of the mobile terminal is realized, and the privacy disclosure of a user at a transmitting end and the interference on the user at a receiving end are avoided.
Further, referring to fig. 5, fig. 5 is a flowchart illustrating a second embodiment of the audio control method for screen projection according to the present invention. Based on the above-mentioned embodiment shown in fig. 3, before step S10, the method may further include:
step S40, receiving a setting instruction based on the screen projection function, and displaying an audio signal transmission control list according to the setting instruction, wherein a plurality of audio application programs and corresponding audio switches are arranged in the audio signal transmission control list;
and step S50, receiving a closing instruction based on the audio switch, and setting the corresponding audio application program as the application program for prohibiting projecting the audio signal according to the closing instruction.
In this embodiment, before performing screen projection, the mobile terminal may receive a setting instruction of a user based on a screen projection function, and display an audio signal transmission control list according to the setting instruction, where a plurality of audio applications and corresponding audio switches are arranged in the audio signal transmission control list. Referring to fig. 6, fig. 6 is a schematic diagram of a display interface of an audio signal transmission control list according to an embodiment of the present invention, where audio applications arranged in the audio signal transmission control list include a phone, an alarm clock, music, a video, a WeChat, and the like, and a user may set a corresponding application to allow or prohibit projection of an audio signal by turning on or off a nearby audio switch, where the application such as the phone, the WeChat, and the like is a privacy application of the user, and the alarm clock application may cause sound interference during screen projection, so that the user may set the applications as applications that prohibit projection of the audio signal, and the application such as the music, the video, and the like is an application that requires projection, and the user may set the applications as; when the projection audio signal is set to be allowed, the audio signal generated by the corresponding application program can be sent to the external electronic equipment when the subsequent mobile terminal performs screen projection, otherwise, when the projection audio signal is set to be forbidden, the audio signal generated by the corresponding application program can be forbidden to be sent to the external electronic equipment when the subsequent mobile terminal performs screen projection.
According to the embodiment, the audio signal transmission control list is used, so that a user can conveniently start or prohibit the audio projection function of the corresponding application program at any time, and a precondition guarantee is provided for subsequently controlling the audio transmission signal in the projection process of the screen of the mobile terminal.
Further, referring to fig. 7, fig. 7 is a flowchart illustrating a screen projection audio control method according to a third embodiment of the present invention.
Based on the embodiment shown in fig. 3, if the audio output event does not include an audio signal generated by a preset application program, step S60 may be executed to transmit the audio signal included in the audio output event to an external electronic device through the screen projection function.
In this embodiment, if the audio signal generated by the preset application program is not included in the audio output event, the mobile terminal directly transmits the audio signal included in the audio output event to the external electronic device through the screen projection function. The typical application scenario is as follows: the mobile terminal projects the video of the video application to the external electronic equipment through the screen projection function, the video application is not a preset application program which prohibits projecting the audio signal, and then the mobile terminal can directly transmit the audio signal of the video application to the external electronic equipment to realize video projection.
Further, before step S60, the method may further include: displaying a user interaction interface containing an audio transmission control; detecting whether a touch instruction based on the audio transmission control is received; if yes, step S60 is executed to send the audio signal included in the audio output event to the external electronic device through the screen projection function.
Because the user may not set an application program for prohibiting projecting the audio signal in advance, when the mobile terminal determines that the current audio output event does not include the audio signal generated by the preset application program, a user interaction interface including an audio transmission control can be displayed, and whether a touch instruction based on the audio transmission control is received is detected, if so, the audio signal included in the audio output event is sent to the external electronic device through a screen projection function, otherwise, the audio signal is not transmitted to the external electronic device.
By means of the prompt function of the user interaction interface, the problems that the privacy of the user is revealed and the interference to a receiving end user is caused due to the fact that the user forgets to set or neglects to set an application program for prohibiting the projection of the audio signal are further avoided.
Further, referring to fig. 8, fig. 8 is a flowchart illustrating an audio control method for screen projection according to a fourth embodiment of the present invention. Based on the above-mentioned embodiment shown in fig. 3, after step S30, the method may further include:
step S70, acquiring screen image data of the mobile terminal;
and step S80, sending the acquired screen image data to an external electronic device through the screen projection function.
In this embodiment, while the audio signal generated by the preset application program is prohibited from being sent to the outside, the mobile terminal may acquire the screen image data and send the acquired screen image data to the external electronic device through the screen projection function, so as to implement image projection.
Further, before step S70, the method may further include: dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen; step 70 may now be replaced with: screen image data in the projection screen is acquired.
Referring to fig. 8, fig. 8 is a schematic view of a split-screen display interface of a mobile terminal in an embodiment of the present invention. The application scenario of this implementation may be: the mobile terminal receives a call in the process of video projection, so that the screen is automatically divided into a user screen and a projection screen, a display picture of a telephone program is displayed in the user screen, the display picture of the video projection is displayed in the projection screen, and when the mobile terminal collects screen image data, only the screen image data in the projection screen is collected and transmitted to external electronic equipment, so that the situation that the video watched by a user at a projection data receiving end is not interrupted and interfered by the display picture of the telephone program can be ensured, and a user at a sending end can respectively perform corresponding operations based on the display interfaces of the two split screens, and the user experience is further improved.
Furthermore, the mobile terminal can also receive a full-screen display instruction based on the user screen or the projection screen, and display the user screen or the projection screen in a full-screen mode according to the full-screen display instruction, and a user can flexibly operate according to actual requirements during specific implementation.
The invention also provides a computer readable storage medium.
The computer readable storage medium of the present invention stores thereon a screen projected audio control program, which when executed by a processor, implements the steps of:
detecting whether an audio output event exists or not when the mobile terminal performs screen projection by using a screen projection function;
when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal;
and if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
receiving a setting instruction based on the screen projection function, and displaying an audio signal transmission control list according to the setting instruction, wherein a plurality of audio application programs and corresponding audio switches are arranged in the audio signal transmission control list;
and receiving a closing instruction based on the audio switch, and setting the corresponding audio application program as the application program for forbidding projecting the audio signal according to the closing instruction.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
receiving a screen projection function starting instruction;
and establishing wireless connection between the mobile terminal and at least one external electronic device according to the screen projection function enabling instruction.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
and if the audio output event does not contain the audio signal generated by the preset application program, transmitting the audio signal contained in the audio output event to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
displaying a user interaction interface containing an audio transmission control;
detecting whether a touch instruction based on the audio transmission control is received;
if yes, executing the following steps: and transmitting the audio signal contained in the audio output event to an external electronic device through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
acquiring screen image data of the mobile terminal;
and sending the acquired screen image data to external electronic equipment through the screen projection function.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen;
the step of acquiring the screen image data of the mobile terminal comprises:
screen image data in the projection screen is acquired.
Further, the audio control program of the screen projection is executed by the processor to realize the following steps:
receiving a full-screen display instruction based on the user screen or the projection screen, and displaying the user screen or the projection screen in a full screen mode according to the full-screen display instruction.
The method implemented when the audio control program for screen projection running on the processor is executed may refer to the embodiment of the audio control method for screen projection of the present invention, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A screen projection audio control method is characterized by comprising the following steps:
detecting whether an audio output event exists or not when the mobile terminal performs screen projection by using a screen projection function;
when an audio output event is detected to exist, judging whether the audio output event contains an audio signal generated by a preset application program, wherein the preset application program is a preset application program for prohibiting projecting the audio signal;
if the audio output event does not contain the audio signal generated by the preset application program, displaying a user interaction interface containing an audio transmission control;
detecting whether a touch instruction based on the audio transmission control is received;
if so, sending the audio signal contained in the audio output event to external electronic equipment through the screen projection function;
if the audio output event comprises an audio signal generated by a preset application program, prohibiting the mobile terminal from transmitting the audio signal to external electronic equipment through the screen projection function;
dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen;
acquiring screen image data of the mobile terminal;
sending the acquired screen image data to external electronic equipment through the screen projection function;
the step of acquiring the screen image data of the mobile terminal comprises:
screen image data in the projection screen is acquired.
2. The audio control method for screen projection according to claim 1, wherein before the step of detecting whether there is an audio output event when the mobile terminal performs screen projection using the screen projection function, further comprising:
receiving a setting instruction based on the screen projection function, and displaying an audio signal transmission control list according to the setting instruction, wherein a plurality of audio application programs and corresponding audio switches are arranged in the audio signal transmission control list;
and receiving a closing instruction based on the audio switch, and setting the corresponding audio application program as the application program for forbidding projecting the audio signal according to the closing instruction.
3. The audio control method for screen projection according to claim 1, wherein before the step of detecting whether there is an audio output event when the mobile terminal performs screen projection using the screen projection function, further comprising:
receiving a screen projection function starting instruction;
and establishing wireless connection between the mobile terminal and at least one external electronic device according to the screen projection function enabling instruction.
4. The screen projection audio control method according to any one of claims 1 to 3, wherein after the step of prohibiting the mobile terminal from transmitting the audio signal to an external electronic device through the screen projection function, further comprising:
acquiring screen image data of the mobile terminal;
and sending the acquired screen image data to external electronic equipment through the screen projection function.
5. The screen-projected audio control method of claim 4, wherein the step of acquiring the screen image data of the mobile terminal is preceded by:
dividing a screen of the mobile terminal into a user screen and a projection screen, displaying a display picture of an application program for generating the audio signal in the user screen, and displaying a display picture for screen projection to external electronic equipment in the projection screen;
the step of acquiring the screen image data of the mobile terminal comprises:
screen image data in the projection screen is acquired.
6. The audio control method of screen projection according to claim 5, wherein the step of dividing the screen of the mobile terminal into a user screen in which a display screen of an application program generating the audio signal is displayed and a projection screen in which a display screen of screen projection to an external electronic device is displayed further comprises:
receiving a full-screen display instruction based on the user screen or the projection screen, and displaying the user screen or the projection screen in a full screen mode according to the full-screen display instruction.
7. A mobile terminal, characterized in that the mobile terminal comprises: memory, a processor and a screen projected audio control program stored on the memory and executable on the processor, the screen projected audio control program when executed by the processor implementing the steps of the screen projected audio control method of any one of claims 1-6.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a screen projected audio control program, which when executed by a processor implements the steps of the screen projected audio control method according to any one of claims 1 to 6.
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| CN110968286A (en) * | 2018-09-29 | 2020-04-07 | Oppo（重庆）智能科技有限公司 | Electronic device |
| CN114253493A (en) * | 2020-09-24 | 2022-03-29 | 北京字节跳动网络技术有限公司 | Projection device, display control method thereof, mobile terminal and storage medium |
| CN112433689B (en) * | 2020-11-11 | 2024-05-28 | 深圳市先智物联科技有限公司 | Data transmission method and device for same screen device, same screen device and medium |
| CN114006971B (en) * | 2021-10-28 | 2024-03-19 | 努比亚技术有限公司 | Screen-throwing window audio control method, equipment and computer readable storage medium |
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