WO2020257975A1

WO2020257975A1 - Multimedia playback device and control method therefor, and computer storage medium

Info

Publication number: WO2020257975A1
Application number: PCT/CN2019/092550
Authority: WO
Inventors: 徐荣宁; 吴奕男
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-12-30
Also published as: CN111684409A; CN111684409B

Abstract

A multimedia playback device and a control method therefor, and a computer storage medium. The multimedia playback device (100) comprises: an external interface (101) comprising at least four sections, wherein the section for connecting a left channel audio in the interface is a left channel section, the section for connecting a right channel audio is a right channel section, the section for connecting a video input signal is a video input section, and the section for connecting the ground is a grounding section; and a first handover switch (102) for handing over the connection of the video input section from the video input signal to the ground. Hence, the first handover switch can achieve handover of connection of the video input section of the external interface between the video input signal and the ground, so that the external interface can be adapted to a video input interface for input and an earphone interface for output, thereby achieving multiplexing of two interfaces. Therefore, the appearance of the multimedia playback device is compact and more aesthetic.

Description

Multimedia playing equipment, its control method, and computer storage medium

Technical field

The embodiments of the present invention relate to the field of audio and video playback, and more specifically, to a multimedia playback device, a control method thereof, and a computer storage medium.

Background technique

The multimedia playback device may be a display device with analog video signal input and audio output. The multimedia playback device may have a video playback function. For example, the multimedia playback device may receive video input from an external storage device, obtain the corresponding video file, and then display the image information in the video file to realize the playback of the video. While playing, you can also output audio information through an external interface.

The current multimedia playback device obtains a video file from an external storage device through an input interface, and then outputs audio information through an output interface, which results in more interfaces of the product and a complex appearance of the product.

Summary of the invention

The embodiments of the present invention provide a multimedia playback device, a control method thereof, and a computer storage medium, which can realize input and output functions through an external interface, reduce the number of external interfaces, and simplify the product structure.

In a first aspect, a multimedia playback device is provided, and the multimedia playback device includes:

An external interface, the interface includes at least four segments, wherein one of the interfaces used to connect the left channel audio is the left channel segment, and the one used to connect the right channel audio is the right channel segment for connecting video The input signal segment is the video input segment, and the ground segment is the ground segment;

The first switch is used to switch the video input section from connecting the video input signal to ground.

In an implementation manner of the first aspect, the device has a recording function, and the device further includes a second switch for switching the grounding section from grounding to connecting a microphone.

In an implementation of the first aspect, the innermost segment among the four segments of the external interface is the first segment, the second segment adjacent to the first segment is the second segment, and among the four segments of the external interface The outermost section is the fourth section, and the third section is adjacent to the fourth section.

In an implementation of the first aspect, the first segment is a left channel segment, and the second segment is a right channel segment; or, the second segment is a left channel segment, and the first segment is The segment is the right channel segment.

In an implementation of the first aspect, the third section is a video input section, and the fourth section is a grounding section; or, the fourth section is a video input section, and the third section is a grounding section .

In an implementation manner of the first aspect, the first segment is a left channel segment, and the third segment is a right channel segment; or, the third segment is a left channel segment, and the first segment is The segment is the right channel segment.

In an implementation of the first aspect, the second segment is a video input segment, and the fourth segment is a grounding segment; or, the fourth segment is a video input segment, and the second segment is a grounding segment .

In an implementation manner of the first aspect, the first segment is a left channel segment, and the fourth segment is a right channel segment; or, the fourth segment is a left channel segment, and the first The segment is the right channel segment.

In an implementation of the first aspect, the second segment is a video input segment, and the third segment is a grounding segment; or, the third segment is a video input segment, and the second segment is a grounding segment .

In an implementation manner of the first aspect, the multimedia playback device is head-mounted VR glasses.

In an implementation manner of the first aspect, the external interface is a 3.5mm interface.

In a second aspect, a method for controlling a multimedia playback device is provided. The multimedia playback device includes an external interface, and the external interface includes at least four segments, wherein one segment of the interface for connecting the left channel audio is the left sound Channel segment, the segment used to connect the right channel audio is the right channel segment, the segment used to connect the video input signal is the video input segment, and the segment used for grounding is the ground segment. The method includes:

When it is detected that a plug is inserted into the external interface of the multimedia playback device, it is determined whether video interruption is detected;

If a video interruption is detected, the first switch is controlled to switch the video input segment from connecting the video input signal to ground.

In an implementation manner of the second aspect, the multimedia playback device further includes a second switch, and the method further includes: controlling the second switch to switch the ground section from ground to connection with a microphone.

In an implementation of the second aspect, the innermost segment of the four segments of the external interface is the first segment, the second segment adjacent to the first segment is the second segment, and among the four segments of the external interface The outermost section is the fourth section, and the third section is adjacent to the fourth section.

In an implementation of the second aspect, the first segment is a left channel segment, and the second segment is a right channel segment; or, the second segment is a left channel segment, and the first segment is The segment is the right channel segment.

In an implementation of the second aspect, the third segment is a video input segment, and the fourth segment is a ground segment; or, the fourth segment is a video input segment, and the third segment is a ground segment .

In an implementation manner of the second aspect, the first segment is a left channel segment, and the third segment is a right channel segment; or, the third segment is a left channel segment, and the first The segment is the right channel segment.

In an implementation of the second aspect, the second segment is a video input segment, and the fourth segment is a ground segment; or, the fourth segment is a video input segment, and the second segment is a ground segment .

In an implementation manner of the second aspect, the first segment is a left channel segment, and the fourth segment is a right channel segment; or, the fourth segment is a left channel segment, and the first The segment is the right channel segment.

In an implementation of the second aspect, the second segment is a video input segment, and the third segment is a grounding segment; or, the third segment is a video input segment, and the second segment is a grounding segment .

In an implementation manner of the second aspect, the multimedia playback device is head-mounted VR glasses.

In an implementation manner of the second aspect, the external interface is a 3.5mm interface.

In a third aspect, a computer storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the foregoing second aspect or any one of its implementation modes are implemented.

It can be seen that the embodiments of the present invention provide a multimedia playback device, a control method thereof, and a computer storage medium. The video input section of the external interface can be switched between the video input signal and the ground through the first switch, so that The external interface can be adapted to the video input interface used for input and the headphone interface used for output, realizing the multiplexing of the two interfaces, so that one interface can be reduced in the hardware design, which is convenient for the appearance design of the multimedia playback device and makes the multimedia The appearance of the playback device is compact and more beautiful.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, without creative labor, other drawings can be obtained from these drawings.

Figure 1 is a schematic diagram of a multimedia playback device according to an embodiment of the present invention;

2 is a schematic diagram of the head-mounted VR glasses according to the embodiment of the present invention;

Figure 3 is a schematic diagram of an external interface according to an embodiment of the present invention;

4 is a schematic diagram of an external interface according to another embodiment of the present invention;

Figure 5 is a schematic diagram of an analog video interface;

Figure 6 is a schematic diagram of the American standard headphone jack;

FIG. 7 is a schematic flowchart of a method for controlling a multimedia playback device according to an embodiment of the present invention;

FIG. 8 is a schematic flowchart of a method for controlling a multimedia playback device according to another embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The embodiment of the present invention provides a multimedia playback device, which includes an external interface and a first switch. The external interface includes at least four segments, wherein one of the external interfaces used to connect the left channel audio is a left channel segment, and the one used to connect the right channel audio is a right channel segment for connecting video The input signal segment is the video input segment, and the ground segment is the ground segment. The first switch can be used to switch the video access section from connecting a video input signal to grounding.

The multimedia playback device in the embodiment of the present invention can read multimedia files from external devices (such as external playback devices and external storage devices) and perform multimedia playback. Among them, the multimedia file may be an audio/video file, so that the multimedia playback device can perform audio/video playback.

1, the multimedia playback device 100 includes an external interface 101 and a first switch 102. The external interface 101 shown in FIG. 1 includes four sections, namely 11, 12, 13, and 14. It can be understood that the external interface 101 may include more than four segments according to actual functional needs, for example, including the fifth segment and the sixth segment for charging, etc., which is not limited by the present invention. In the subsequent embodiments of the present invention, the external interface includes four segments as an example for illustration.

It can be understood that FIG. 1 shows only a schematic block diagram of the multimedia playback device 100. In the embodiment of the present invention, the multimedia playback device 100 may be head-mounted VR (Virtual Reality) glasses, as shown in FIG. 2 is a schematic diagram of the head-mounted VR glasses, where the head-mounted VR glasses 20 includes an external interface 210.

The head-mounted VR glasses in this embodiment can be used as a supporting device for an unmanned racing machine (traversing machine). Wearing users can watch the first-view flight images shot and returned by the unmanned racing machine through the display screen in the VR glasses, allowing users to have an immersive flight experience. As a multimedia playback device, VR glasses not only have the function of inputting analog video signals, playing the real-time picture of the unmanned racing machine, but also have the function of playing back the recorded video of the game. When the VR glasses are playing the real-time unmanned racing machine picture, generally only need to play the picture without playing the sound. At this time, the analog video signal input function is used to input the device from the external interface, and the ADC is sampled and decoded. The decoder decodes, converts to a video signal, and displays it on the screen in the VR glasses. When VR glasses play back the recorded video of the game, it is generally necessary to play both the video screen and the sound. At this time, the corresponding video file can be read from the external storage device, and the image information in the video file can be displayed on the screen. Audio information is output through an external interface.

For the convenience of description, it is assumed that the external interface 101 includes four sections, and the four sections are the first section 11, the second section 12, the third section 13, and the fourth section 14 from the inside to the outside. That is to say, in the embodiment of the present invention, the innermost section among the four sections of the external interface is the first section 11, and the second section 12 adjacent to the first section 11 is the second section 12. The outermost section is the fourth section 14, and the third section 13 is adjacent to the fourth section 14. Those skilled in the art should understand that the first paragraph to the fourth paragraph can also be defined sequentially from the outside to the inside, or the first paragraph to the fourth paragraph can also be defined in other order instead of sequentially, which is not limited by the present invention. . Among them, "in" and "outside" are relative to the multimedia playback device 100, and the distance between "in" and the casing of the multimedia playback device 100 is greater than the distance between "outside" and the casing of the multimedia playback device 100.

As an implementation manner, the first segment 11 is a left channel segment, and the second segment 12 is a right channel segment; or, the second segment 12 is a left channel segment, and the first segment 11 is a right channel segment. The third section 13 is a video input section, and the fourth section 14 is a grounding section; or, the fourth section 14 is a video input section, and the third section 13 is a grounding section.

For example, the first segment 11 is a left channel segment, the second segment 12 is a right channel segment, the third segment 13 is a video input segment, and the fourth segment 14 is a ground segment (as shown in FIG. 3). For another example, the first segment 11 is a left channel segment, the second segment 12 is a right channel segment, the fourth segment 14 is a video input segment, and the third segment 13 is a grounding segment. For another example, the second segment 12 is a left channel segment, the first segment 11 is a right channel segment, the third segment 13 is a video input segment, and the fourth segment 14 is a grounding segment. For another example, the second segment 12 is a left channel segment, the first segment 11 is a right channel segment, the fourth segment 14 is a video input segment, and the third segment 13 is a grounding segment.

As another implementation manner, the first segment 11 is a left channel segment, and the third segment 13 is a right channel segment; or, the third segment 13 is a left channel segment, and the first segment 11 is a right channel segment. The second section 12 is a video input section, and the fourth section 14 is a grounding section; or, the fourth section 14 is a video input section, and the second section 12 is a grounding section.

For example, the first segment 11 is a left channel segment, the third segment 13 is a right channel segment, the second segment 12 is a video input segment, and the fourth segment 14 is a grounding segment. For another example, the first segment 11 is a left channel segment, the third segment 13 is a right channel segment, the fourth segment 14 is a video input segment, and the second segment 12 is a grounding segment. For another example, the third segment 13 is a left channel segment, the first segment 11 is a right channel segment, the second segment 12 is a video input segment, and the fourth segment 14 is a grounding segment. For another example, the third segment 13 is a left channel segment, the first segment 11 is a right channel segment, the fourth segment 14 is a video input segment, and the second segment 12 is a grounding segment.

As yet another implementation manner, the first segment 11 is a left channel segment, and the fourth segment 14 is a right channel segment; or, the fourth segment 14 is a left channel segment, and the first segment 11 is a right channel segment. The second section 12 is a video input section, and the third section 13 is a grounding section; or, the third section 13 is a video input section, and the second section 12 is a grounding section.

For example, the first segment 11 is a left channel segment, the fourth segment 14 is a right channel segment, the second segment 12 is a video input segment, and the third segment 13 is a grounding segment. For another example, the first segment 11 is a left channel segment, the fourth segment 14 is a right channel segment, the third segment 13 is a video input segment, and the second segment 12 is a grounding segment. For another example, the fourth segment 14 is a left channel segment, the first segment 11 is a right channel segment, the second segment 12 is a video input segment, and the third segment 13 is a grounding segment. For another example, the fourth segment 14 is a left channel segment, the first segment 11 is a right channel segment, the third segment 13 is a video input segment, and the second segment 12 is a grounding segment.

It can be understood that the various situations of the interface are listed above, but for the convenience of the following description, the embodiment of the present invention is illustrated by taking FIG. 3 as an example. Those skilled in the art will also use FIG. 3 on the basis of the embodiment described in conjunction with FIG. Embodiments of other situations of the interface are available, and are also within the protection scope of this document. In order to avoid repetition, we will not list each situation one by one.

Exemplarily, as shown in Figure 3, the first segment 11 can be connected to the left channel of audio, the second segment 12 can be connected to the right channel of audio, and the third segment 13 can be connected to the video input signal via the first switch 102. The fourth section 14 is grounded. The first switch 102 may be in the form of Single Pole Double Throw (SPDT), and the first switch 102 may switch the third segment 13 from connecting the video input signal to ground.

Optionally, the multimedia playback device 100 may have a recording function, and it may also include a second switch, as shown in FIG. 4. In the embodiment shown in Figure 4, the first section 11 is connected to the left channel of audio, the second section 12 can be connected to the right channel of audio, the third section 13 is connected to the video input signal via the first switch 102, and the fourth section The segment 14 is grounded via the second switch 103, and the first switch 102 can switch the third segment 13 from connecting the video input signal to the ground, and the second switch 103 can switch the fourth segment 14 from ground to the microphone. Wherein, the first switch 102 may be in the form of SPDT, and the second switch 103 may also be in the form of SPDT.

Optionally, the external interface may be a 3.5mm interface. In this way, the external interface can adapt to various existing external devices. As an example, the external interface shown in FIG. 3 or FIG. 4 can be connected to an analog video interface (an example of the analog video interface shown in FIG. 5), for example, to realize CVBS analog video signal input. As another example, when the third segment 13 in FIG. 3 is grounded, the external interface can be connected to earphones, for example, to realize audio output. As another example, when the third segment 13 in Figure 4 is grounded and the fourth segment 14 is connected to a microphone, the external interface can be connected to a headset with a microphone (an example of the American standard headphone interface shown in Figure 6), for example, to achieve audio output And can realize the recording function.

It can be seen that the external interface in the embodiment of the present invention can be adapted to the video input interface used for input and the headphone interface used for output, realizing the multiplexing of the two interfaces, so that one interface can be reduced in hardware design. Facilitate the appearance design of the multimedia playback device, making the appearance of the multimedia playback device compact and more beautiful.

It should be noted that the first switch 102 or the second switch 103 in the embodiment of the present invention may be in other forms than SPDT, which is not limited in the present invention.

In addition, as shown in FIG. 7, an embodiment of the present invention also provides a method for controlling a multimedia playback device. The multimedia playback device may be the multimedia playback device 100 described in the above-mentioned embodiment, and includes an external interface. At least four segments, where the one used to connect the left channel audio in the interface is the left channel segment, the one used to connect the right channel audio is the right channel segment, and the one used to connect the video input signal is the video input Section, the section used for grounding is the grounding section. The method shown in FIG. 7 may include:

S110: When it is detected that a plug is inserted into the external interface of the multimedia playback device, determine whether a video interruption is detected;

S120: If a video interruption is detected, control the first switch to switch the video input segment from connecting the video input signal to grounding.

For example, the first segment 11 is a left channel segment, the second segment 12 is a right channel segment, the third segment 13 is a video input segment, and the fourth segment 14 is a ground segment (as shown in FIG. 3). For another example, the first segment 11 is a left channel segment, the second segment 12 is a right channel segment, the fourth segment 14 is a video input segment, and the third segment 13 is a grounding segment. For another example, the second segment 12 is the left channel segment, the first segment 11 is the right channel segment, the third segment 13 is the video input segment, and the fourth segment 14 is the ground segment. For another example, the second segment 12 is a left channel segment, the first segment 11 is a right channel segment, the fourth segment 14 is a video input segment, and the third segment 13 is a grounding segment.

It can be understood that the various situations of the interface are listed above, but again, for the convenience of the following description, the embodiment of the present invention is illustrated by taking FIG. 3 as an example. Those skilled in the art will use the description of the embodiment described in FIG. On the basis, embodiments of other situations of the interface can also be obtained, and they are also within the protection scope of this document. In order to avoid repetition, we will not list each situation one by one.

In order to more clearly describe the process of the method in the embodiment of the present invention, the description is still made with reference to the external interface shown in FIG. 3 as an example. When the external interface is idle, that is, when the external interface is not plugged into any other external interface, the third segment 13 is connected to the video input signal.

The method for controlling the multimedia playback device of FIG. 7 described with reference to FIG. 3 according to the embodiment of the present invention will be described with reference to the flowchart shown in FIG. 8. Optionally, the insertion can be detected by detecting the position change of the reed associated with the external interface. The reed can have two different positions. When it is in the first position, the external interface is not inserted, and when it is in the second position, the external interface is inserted. When detecting that the position of the reed changes from the first position to the second position, it can be determined that the external interface is inserted. Subsequently, in S110, it can be detected whether the video is interrupted to determine the type of interface inserted.

Generally, an external playback device (or a video input device) is inserted into the external interface 101 of the multimedia playback device 100 through the interface shown in FIG. 5. Since the third segment 13 of the external interface 101 is connected to the video input signal, it reads the video signal in real time. Assuming that the external playback device is inserted into the external interface 101, since the external playback device is always outputting some video signals (such as pure color pictures, etc.), the multimedia playback device 100 can detect these video signals, that is, the multimedia playback device 100 The detected video is not interrupted, so that it can be determined that the external interface 101 is plugged into an external playback device, the first switch 102 does not need to be switched, and the third segment 13 continues to be connected to the video input signal. In this case, the multimedia playback device 100 can read the corresponding video file from the external playback device via the external interface 101.

Generally, earphones are inserted into the external interface 101 of the multimedia playback device 100 through the interface shown in FIG. 6. Since the third segment 13 of the external interface 101 is connected to the video input signal, it reads the video signal in real time. Assuming that a headset is inserted into the external interface 101, the multimedia playback device 100 cannot detect the video signal at this time, that is, the video detected by the multimedia playback device 100 is interrupted, so that it can be determined that the external interface 101 is not an external playback device. Furthermore, in S120, the first switch 101 switches the third segment 13 from connecting the video input signal to ground. Optionally, in this case, in combination with the embodiment shown in FIG. 4, the second switch 103 can also switch the fourth section 14 from grounding to connecting with a microphone, so as to realize the recording function of the multimedia playback device 100.

It can be seen that, combined with the schematic diagram of FIG. 3, the embodiment of the present invention can realize the switching between the video input signal and the ground of the third segment of the external interface through the first switch, so that an external interface can be adapted to the external playback device and For both earphones, one interface can be reduced during hardware design, making the appearance of the multimedia playback device more compact.

In the embodiment of the present invention, the multimedia playback device 100 may be head-mounted VR (Virtual Reality, virtual reality) glasses, as shown in FIG. 2. Through the embodiments of the present invention, one external interface can be reduced, so that the head-mounted VR glasses can be compact in appearance, and the miniaturization of the head-mounted VR glasses can be realized.

The head-mounted VR glasses in this embodiment can be used as a supporting device for an unmanned racing machine (traversing machine). Wearing users can watch the first-view flight images shot and returned by the unmanned racing machine through the display screen in the VR glasses, allowing users to have an immersive flight experience. As a multimedia playback device, VR glasses not only have the function of inputting analog video signals, playing the real-time picture of the unmanned racing machine, but also have the function of playing back the recorded video of the game. When the VR glasses are playing the real-time unmanned racing machine picture, generally only need to play the picture without playing the sound. At this time, the analog video signal input function is used to input the device from the external interface and sample through ADC. The decoder decodes, converts to a video signal, and displays it on the screen in the VR glasses. When VR glasses play back the recorded video of the game, it is generally necessary to play both the video screen and the sound. At this time, the corresponding video file can be read from the external storage device, and the image information in the video file can be displayed on the screen. Audio information is output through an external interface. In order to realize the above-mentioned functions on conventional playback devices, both an audio output interface and a video input interface are required. However, when using the head-mounted VR glasses of this embodiment, there is no need to provide two external interfaces. Only one interface is needed to fulfill both requirements.

In addition, an embodiment of the present invention also provides a multimedia playback device, including a memory, a processor, and a computer program stored on the memory and running on the processor, and the processor executes the program to implement the aforementioned FIG. 7 Or the steps of the method shown in Figure 8.

Specifically, the processor executes the computer program to execute: when detecting that the external interface of the multimedia playback device has a plug inserted, it determines whether a video interruption is detected; if a video interruption is detected, it controls the first switch to input the video into the segment Switch from connecting the video input signal to ground.

Exemplarily, the multimedia playback device may further include a second switch, and the processor executing the computer program may also execute: controlling the second switch to switch the grounding section from grounding to connecting the microphone.

Among them, the processor and the memory may be connected through a bus. In addition, the multimedia playback device may also include other components, such as a display screen, a speaker, and the like.

The processor may be a central processing unit (CPU) or another form of processing unit with data processing capability and/or instruction execution capability, and may control other components in the device to perform desired functions.

The memory may include one or more computer program products, and the computer program products may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include random access memory (RAM) and/or cache memory (cache), for example. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor may run the program instructions to implement the functions and/or functions in the embodiments of the present invention (implemented by the processor) described below. Other desired functions. Various application programs and various data, such as various data used and/or generated by the application program, can also be stored in the computer-readable storage medium.

In addition, the embodiment of the present invention also provides a computer storage medium on which a computer program is stored. When the computer program is executed by the processor, the steps of the method shown in FIG. 7 or FIG. 8 can be implemented. For example, the computer storage medium is a computer readable storage medium.

It can be seen that, in the embodiment of the present invention, a segment of the external interface can be switched between the video input signal and the ground through the first switch, so that the external interface can be adapted to the video input interface for input and the earphone for output. The interface realizes the multiplexing of two interfaces, so that one interface can be reduced in the hardware design, which facilitates the appearance design of the multimedia playback device, and makes the appearance of the multimedia playback device compact and more beautiful.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. It should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A multimedia playback device, characterized in that, the device includes:

An external interface, the interface includes at least four segments, wherein one of the interfaces used to connect the left channel audio is the left channel segment, and the one used to connect the right channel audio is the right channel segment for connecting video The input signal segment is the video input segment, and the ground segment is the ground segment;

The first switch is used to switch the video input section from connecting the video input signal to ground.
The device according to claim 1, wherein the device has a recording function, and the device further comprises a second switch for switching the grounding section from grounding to connecting a microphone.
The device according to claim 1, wherein the innermost section of the four sections of the external interface is the first section, the second section adjacent to the first section, and the four sections of the external interface The outermost segment of the segments is the fourth segment, and the third segment is adjacent to the fourth segment.
The device according to claim 3, wherein:

The first segment is a left channel segment, and the second segment is a right channel segment;

Or, the second segment is a left channel segment, and the first segment is a right channel segment.
The device according to claim 4, wherein:

The third segment is a video input segment, and the fourth segment is a grounding segment;

Or, the fourth section is a video input section, and the third section is a grounding section.
The device according to claim 3, wherein:

The first segment is a left channel segment, and the third segment is a right channel segment;

Or, the third segment is a left channel segment, and the first segment is a right channel segment.
The device according to claim 6, wherein:

The second segment is a video input segment, and the fourth segment is a grounding segment;

Or, the fourth section is a video input section, and the second section is a grounding section.
The device according to claim 3, wherein:

The first segment is a left channel segment, and the fourth segment is a right channel segment;

Alternatively, the fourth segment is a left channel segment, and the first segment is a right channel segment.
The device according to claim 8, wherein:

The second segment is a video input segment, and the third segment is a grounding segment;

Or, the third section is a video input section, and the second section is a grounding section.
The device according to any one of claims 1 to 9, wherein the multimedia playback device is head-mounted VR glasses.
The device according to any one of claims 1 to 9, wherein the external interface is a 3.5mm interface.
A method for controlling a multimedia playback device, characterized in that the multimedia playback device includes an external interface, the external interface includes at least four segments, and one of the interfaces for connecting left channel audio is a left channel segment , The section used for connecting the right channel audio is the right channel section, the section used for connecting the video input signal is the video input section, and the section used for grounding is the grounding section. The method includes:

When it is detected that a plug is inserted into the external interface of the multimedia playback device, it is determined whether video interruption is detected;

If a video interruption is detected, the first switch is controlled to switch the video input segment from connecting the video input signal to ground.
The method according to claim 12, wherein the multimedia playback device further comprises a second switch, and the method further comprises:

The second switch is controlled to switch the ground section from ground to microphone connection.
The method according to claim 12, wherein the innermost section of the four sections of the external interface is the first section, the second section adjacent to the first section, and the four sections of the external interface The outermost segment of the segments is the fourth segment, and the third segment is adjacent to the fourth segment.
The method of claim 14, wherein:

The first segment is a left channel segment, and the second segment is a right channel segment;

Or, the second segment is a left channel segment, and the first segment is a right channel segment.
The method of claim 15, wherein:

The third segment is a video input segment, and the fourth segment is a grounding segment;

Or, the fourth section is a video input section, and the third section is a grounding section.
The method of claim 14, wherein:

The first segment is a left channel segment, and the third segment is a right channel segment;

Or, the third segment is a left channel segment, and the first segment is a right channel segment.
The method of claim 17, wherein:

The second segment is a video input segment, and the fourth segment is a grounding segment;

Or, the fourth section is a video input section, and the second section is a grounding section.
The method of claim 14, wherein:

The first segment is a left channel segment, and the fourth segment is a right channel segment;

Or, the fourth segment is a left channel segment, and the first segment is a right channel segment.
The method of claim 19, wherein:

The second segment is a video input segment, and the third segment is a grounding segment;

Or, the third section is a video input section, and the second section is a grounding section.
The method according to any one of claims 12 to 20, wherein the multimedia playback device is head-mounted VR glasses.
The method according to any one of claims 12 to 20, wherein the external interface is a 3.5mm interface.
A computer storage medium with a computer program stored thereon, wherein the computer program implements the steps of any one of claims 12 to 22 when the computer program is executed by a processor.