CN109922292B - Screen recording system and screen recording method thereof - Google Patents
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Abstract
A screen recording system and a screen recording method thereof are disclosed, wherein the screen recording system comprises: the device comprises a main chip, a screen recording control module and a signal conversion module; the main chip is connected with the screen recording control module and the signal conversion module, and the signal conversion module is also connected with the screen recording control module; the signal conversion module is used for performing signal conversion and output on a first screen image signal output by the main chip according to the task condition; when the task is screen recording, the signal conversion module converts a first screen image signal output by the main chip into a camera signal and outputs the camera signal to the screen recording control module; and the screen recording control module is used for entering a camera recording mode after receiving a screen recording notification sent by the main chip and recording the camera signal converted and output by the signal conversion module. The screen recording system and the screen recording method thereof provided by the embodiment of the invention convert the video image signal into the camera signal, so that the screen recording control module can record the screen content in a camera recording mode without additionally arranging a camera.
Description
Technical Field
The invention belongs to the technical field of video image processing, and particularly relates to a screen recording system and a screen recording method thereof.
Background
As the performance of smart mobile devices in terms of processing, display and system compatibility is continuously improved and optimized, the functional requirements of users on smart mobile devices are increasing, which makes smart mobile devices capable of providing services for more and more applications, so that the functions that previously could only be run on the PC side are gradually shifted to be implemented by smart mobile devices, such as screen recording.
The existing screen recording completed by the intelligent mobile equipment needs to shoot pictures needing to be recorded by means of a camera of the intelligent mobile equipment, and the pictures shot by the camera are taken as recorded images. The method of recording by means of the camera has the advantages that the effect of the recorded image depends on the performance of the camera of the intelligent mobile device to a great extent, and when the performance of the camera is not high, the recording effect is not ideal, and the requirement of a user on the image recording cannot be met.
Disclosure of Invention
In order to solve the technical problem that the screen recording effect is not ideal due to the fact that the screen recording is carried out by means of the camera, the embodiment of the invention provides a screen recording system and a screen recording method thereof.
A screen recording system, comprising: the device comprises a main chip, a screen recording control module and a signal conversion module; the main chip is connected with the screen recording control module and the signal conversion module, and the signal conversion module is also connected with the screen recording control module;
the signal conversion module is used for performing corresponding signal conversion and output on the first screen image signal output by the main chip according to the task; when the task is screen recording, the signal conversion module converts a first screen image signal output by the main chip into a camera signal and outputs the camera signal to the screen recording control module;
and the screen recording control module is used for entering a camera recording mode after receiving a screen recording notification sent by the main chip and recording the camera signal converted and output by the signal conversion module.
Furthermore, the signal conversion module comprises a first conversion module and a second conversion module, the first conversion module of the signal conversion module is connected with the main chip and the second conversion module, and the second conversion module is also connected with the screen recording control module;
the first conversion module converts a first screen image signal output by the main chip into a video image signal, and the second conversion module converts the video image signal obtained by the conversion of the first conversion module into a camera signal.
Furthermore, the screen recording system further comprises a screen driving control module, the signal conversion module further comprises a third conversion module, and the third conversion module of the signal conversion module is connected with the main chip and the screen driving control module; the third conversion module converts the first screen image signal output by the main chip into a second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display when receiving the second screen image signal.
Further, the screen recording control module enters a playback mode after receiving a playback instruction for playing back the recorded video image, the video image to be played back is sent to the main chip for image processing, and the main chip outputs a first screen image after performing image processing on the video image to be played back; when the task is playback, the signal conversion module converts the first screen image signal output by the main chip into the second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display.
Further, when the task is screen recording, the signal conversion module also converts a first screen image signal output by the main chip into a second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display.
Furthermore, the main chip comprises a first communication interface and a first video image interface, and the screen recording control module comprises a second communication interface and a second video image interface; the first communication interface of the main chip is connected with the second communication interface of the screen recording control module; and a first video image interface of the main chip is connected with a second video image interface of the screen recording control module.
Further, the camera signal is an MIPICSI-2 signal.
A screen recording method of a screen recording system as claimed in any one of the preceding claims, the screen recording method comprising a recording step, the recording step comprising:
step S21: the main chip sends a screen recording notification to the screen recording control module, processes the received external video image signal or internal video image signal into a first screen image signal and sends the first screen image signal to the signal conversion module;
step S22: the signal conversion module converts the received first screen image signal into a camera signal and sends the camera signal to the screen recording control module;
step S23: and the screen recording control module receives a screen recording notice sent by the main chip, enters a camera recording mode, and starts recording when receiving a camera signal sent by the signal conversion module.
Further, the screen recording method further comprises a playback step, wherein the playback step comprises the following steps:
step S31: the screen recording control module detects whether a playback instruction for playing back the recorded video image is received;
step S32: the screen recording control module enters a playback mode after receiving the playback instruction, stops screen recording operation, and simultaneously sends a screen recording stop notification and a video image needing to be played back to the main chip;
step S33: after receiving the screen recording stopping notification, the main chip stops the screen recording function, performs image processing on the received video image to be played back to obtain a first screen image signal, and sends the first screen image signal to the signal conversion module;
step S34: the signal conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control chip;
step S35: and after the screen driving control chip receives the second screen image signal sent by the signal conversion module, the liquid crystal screen is driven to display the received second screen image signal.
Further, the recording step further comprises: when the screen recording needs to be stopped, the main chip sends a screen recording stopping notification to the screen recording control module and quits the camera recording mode at the same time.
The embodiment of the invention has the following beneficial effects: the screen recording system and the screen recording method thereof provided by the embodiment of the invention convert the video image signal into the camera signal, so that the screen recording control module can record the screen content in a camera recording mode without additionally arranging a camera.
Drawings
Fig. 1 is a schematic structural diagram of a screen recording system according to embodiment 1 of the present invention;
fig. 2 is a flowchart of recording steps included in the screen recording method according to embodiment 1 of the present invention;
fig. 3 is a flowchart of playback steps included in the screen recording method according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a screen recording system according to embodiment 2 of the present invention;
fig. 5 is a flowchart of recording steps included in a screen recording method according to embodiment 2 of the present invention;
fig. 6 is a flowchart of playback steps included in the screen recording method according to embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following examples.
Example 1:
as shown in fig. 1, the screen recording system provided in the embodiment of the present invention includes: the device comprises a main chip, a screen recording control module, a signal conversion module and a screen driving control module. The main chip is connected with the screen recording control module and the signal conversion module, and the signal conversion module is further connected with the screen recording control module and the screen driving control module.
The main chip is used as a core component of the whole system and controls the operation of the whole system, for example, a screen recording notification is sent to a screen recording control module or a screen recording stopping notification is sent to the screen recording control module; the main chip can also perform image processing, such as processing an external video image signal or an internal video image signal into a first screen image signal, or processing a recorded video image from the screen recording control module into a first screen image signal. The main chip includes a first operating system. The first operating system may be an android system. The external video image signal may be a video image signal input to the main chip through an interface such as HDMI, VGA, DP, AV, YPBPR, USB, etc., and the internal video image signal may be a user interface UI signal of the first operating system of the main chip.
The signal conversion module is used for performing signal conversion on the first screen image signal output by the main chip according to different tasks, wherein the tasks comprise recording and playback. When recording is carried out, the signal conversion module converts the first screen image signal into a camera signal; when the playback is performed, the signal conversion module converts the first screen image signal into the second screen image signal. When recording, in order to display the recorded video image content on the liquid crystal screen, the signal conversion module may further convert the first screen image signal into a second screen image signal for displaying on the liquid crystal screen.
The signal conversion module converts the first screen image signal into a camera signal, so that the screen recording control module recognizes the camera signal as a signal from a camera when receiving the camera signal, and can record in a camera recording mode. The Camera signal may be a MIPICSI-2(Mobile Industry Processor Interface Camera Serial Interface-2) signal.
The signal conversion module converts the first screen image signal into the second screen image signal, so that the second screen image signal can be identified by the screen driving control module for displaying. The format of the second screen image signal may be the same as or different from that of the first screen image signal, depending on the type of the conversion chip used inside the signal conversion module and the type of the screen driving control module.
The signal conversion module may be a module independent from the main chip, or a module integrated in the main chip.
The screen recording control module is used for entering a camera recording mode after receiving a screen recording notification sent by the main chip, recording a camera signal output by the signal conversion module, and storing a recorded video image in storage equipment included by the screen recording control module; and after receiving a playback instruction of the recorded video image stored in the storage equipment of the playback screen recording control module, entering a playback mode, sending a screen recording stopping notification to the main chip, and sending the recorded video image stored in the storage equipment to the main chip for image processing. The video image output by the screen recording control module may be a video image in an HDMI (High Definition Multimedia Interface) format. The screen recording control module comprises a second operating system. The second operating system may be an android system.
And the screen driving control module is used for driving the liquid crystal screen to display according to the second screen image signal output by the signal conversion module.
The screen recording system further comprises a screen recording indicating lamp for indicating whether the screen recording control module is in a screen recording state or not, and a user can conveniently and visually know the working condition of the screen recording control module. When the main chip sends a screen recording notification to the screen recording control module, a screen recording indicator lamp is turned on to indicate that the screen recording control module is in a screen recording state; when the main chip receives a screen recording stopping notification sent by the screen recording control module or the main chip sends a screen recording stopping notification to the screen recording control module, the screen recording indicating lamp is turned off to indicate that the screen recording control module is not in a screen recording state.
The main chip comprises a screen recording control key, and the screen recording is started or stopped by clicking the screen recording control key. The screen recording control key can be an entity key or a virtual key on a user interface. And after receiving an indication signal of pressing the screen recording control key, the main chip sends a screen recording notification or stops the screen recording notification to the screen recording control module.
The screen recording method provided by the embodiment of the invention comprises a recording step and a playback step. The playback step may be inserted during the recording step so that the recording step is suspended or stopped, or may be performed when the recording step is not performed.
Wherein, the recording step is as shown in fig. 2, and comprises the following steps:
step S21: the main chip sends a screen recording notification to the screen recording control module, processes the received external video image signal or internal video image signal into a first screen image signal and sends the first screen image signal to the signal conversion module;
step S22: the signal conversion module converts the received first screen image signal into a camera signal and sends the camera signal to the screen recording control module;
step S23: the screen recording control module receives a screen recording notice sent by the main chip, enters a camera recording mode, starts a camera recording function, and starts recording when receiving a camera signal sent by the signal conversion module. The recorded video images are stored in a storage device included in the screen recording control module.
The recording step may further include: the signal conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control module; and after the screen driving control module receives the second screen image signal sent by the signal conversion module, the liquid crystal screen is driven to display the received second screen image signal. This step may be performed simultaneously with step S22.
The recording step further comprises: when the screen recording needs to be stopped, the main chip sends a screen recording stopping notification to the screen recording control module and quits the camera recording mode at the same time.
In step S21, the main chip turns on the screen recording indicator light while sending a screen recording notification to the screen recording control module.
And when the main chip sends a screen recording stopping notification to the screen recording control module, the screen recording indicating lamp is turned off.
The playback step is shown in fig. 3 and comprises the following steps:
step S31: the screen recording control module detects whether a playback instruction for playing back the recorded video image stored in the storage device of the screen recording control module is received; the playback instruction can be a recorded video image stored in a storage device of the click screen recording control module;
step S32: the screen recording control module enters a playback mode after receiving the playback instruction, stops screen recording operation, and simultaneously sends a screen recording stop notification and a video image needing to be played back to the main chip;
step S33: after receiving the screen recording stopping notification, the main chip stops the screen recording function, for example, the main chip does not perform image processing on the external video image signal and the internal video image signal any more, so as to avoid loop recording; carrying out image processing on the received video image to be played back to obtain a first screen image signal, and sending the first screen image signal to a signal conversion module;
step S34: the signal conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control chip;
step S35: and after the screen driving control chip receives the second screen image signal sent by the signal conversion module, the liquid crystal screen is driven to display the received second screen image signal.
In step S33, the main chip turns off the screen recording indicator light after receiving the screen recording stop notification.
The screen recording system and the screen recording method provided by the embodiment of the invention convert the video image signal into the camera signal, so that the screen recording control module can record the screen content in a camera recording mode without additionally arranging a camera.
The screen recording system and the screen recording method provided by the embodiment of the invention can be used for intelligent mobile equipment such as a tablet, a mobile phone and the like.
Example 2:
an embodiment of the present invention further provides a screen recording system, as shown in fig. 4, including: the device comprises a main chip, a screen recording control module, a signal conversion module and a screen driving control module.
The main chip is used as a core component of the whole system and controls the operation of the whole system, for example, a screen recording notification is sent to a screen recording control module or the screen recording notification is stopped; the main chip can also perform image processing, such as processing an external video image signal or an internal video image signal into a first screen image signal, or processing a recorded video image from the screen recording control module into a first screen image signal. The main chip includes a first operating system. The first operating system may be an android system. The external video image signal may be a video image signal input to the main chip through an interface such as HDMI, VGA, DP, AV, YPBPR, USB, etc., and the internal video image signal may be a user interface UI signal of the first operating system of the main chip.
The main chip comprises a first communication interface and a first video image interface, and the screen recording control module comprises a second communication interface and a second video image interface. The first communication interface of the main chip is connected with the second communication interface of the screen recording control module, and through interactive communication of the first communication interface and the second communication interface, notification can be transmitted between the main chip and the screen recording control module, for example, the main chip transmits screen recording notification to the screen recording control module, and the screen recording control module transmits screen recording stopping notification to the main chip. And a first video image interface of the main chip is connected with a second video image interface of the screen recording control module, and the screen recording control module transmits the recorded video image to the main chip.
The first communication interface and the second communication interface may be a USB interface, a UART interface, an I2C interface, or an SPI interface.
The first and second video image interfaces may be HDMI interfaces.
The signal conversion module is used for performing signal conversion on the first screen image signal output by the main chip. The signal conversion module comprises a third conversion module, a first conversion module and a second conversion module, the third conversion module of the signal conversion module is connected with the main chip and the screen driving control module, the first conversion module of the signal conversion module is connected with the main chip and the second conversion module, and the second conversion module is further connected with the screen recording control module.
When a video image needs to be displayed (including video image display during recording and video image display during playback), the third conversion module converts the first screen image signal output by the main chip into a second screen image signal and sends the second screen image signal to the screen driving control chip. When a video image needs to be recorded, the first conversion module converts a first screen image signal output by the main chip into a video image signal and sends the video image signal to the second conversion module; the second conversion module converts the video image signal obtained by the conversion of the first conversion module into a camera signal and sends the camera signal to the screen recording control module.
The third conversion module converts the first screen image signal into the second screen image signal, so that the second screen image signal can be identified by the screen driving control module for displaying. The format of the second screen image signal may be the same as or different from that of the first screen image signal, depending on the type of the third conversion module and the type of the screen driving control module.
The second conversion module converts the video image signal into a camera signal, so that the screen recording control module recognizes the camera signal as a signal from a camera when receiving the camera signal, and recording can be performed. The camera signal can be an MIPI CSI-2 signal, and the screen recording control module further comprises an MIPI-CSI2 interface. When the video image signal is an HDMI signal, the second conversion module is an HDMI to MIPICSI-2 chip.
The screen recording control module is used for entering a camera recording mode after receiving a screen recording notification sent by the main chip through the second communication interface, recording a camera signal output by the second conversion module, and storing a recorded video image in storage equipment included by the screen recording control module; and after receiving a playback instruction of the recorded video image stored in the storage device of the playback screen recording control module, entering a playback mode, sending a screen recording stopping notification to the first communication interface of the main chip through the second communication interface, sending the recorded video image stored in the storage device to the first video image interface of the main chip through the second video image interface, and carrying out image processing on the recorded video image by the main chip. The recorded video image may be a video image in HDMI format, or may be a video image in other formats, depending on the types of the first video image interface and the second video image interface. The screen recording control module comprises a second operating system. The second operating system may be an android system.
And the screen driving control module is used for driving the liquid crystal screen to display according to the second screen image signal output by the third conversion module.
The screen recording system further comprises a screen recording indicating lamp for indicating whether the screen recording control module is in a screen recording state or not, and a user can conveniently and visually know the working condition of the screen recording control module. When the main chip sends a screen recording notification to the screen recording control module, a screen recording indicator lamp is turned on to indicate that the screen recording control module is in a screen recording state; when the main chip receives a screen recording stopping notification sent by the screen recording control module or the main chip sends a screen recording stopping notification to the screen recording control module, the screen recording indicating lamp is turned off to indicate that the screen recording control module is not in a screen recording state.
The main chip comprises a screen recording control key, and the screen recording is started or stopped by clicking the screen recording control key. The screen recording control key can be an entity key or a virtual key on a user interface. After receiving an indication signal of pressing a screen recording control key, a first communication interface of the main chip sends a screen recording notification or stops the screen recording notification to a second communication interface of the screen recording control module.
The screen recording method provided by the embodiment of the invention comprises a recording step and a playback step. The playback step may be inserted during the recording step so that the recording step is suspended or stopped, or may be performed when the recording step is not performed.
Wherein, the recording step is as shown in fig. 5, and comprises the following steps:
step S51: the main chip sends a screen recording notification to a second communication interface of the screen recording control module through the first communication interface, processes the received external video image signal or internal video image signal into a first screen image signal and sends the first screen image signal to a second conversion module of the signal conversion module;
step S52: the first conversion module converts the received first screen image signal into a video image signal and sends the video image signal to the second conversion module of the signal conversion module; the second conversion module converts the received video image signal into a camera signal and sends the camera signal to the screen recording control module;
step S53: and the screen recording control module receives a screen recording notice sent by the main chip, enters a camera recording mode, starts a camera recording function, and starts recording when receiving a camera signal sent by the second conversion module. The recorded video images are stored in a storage device included in the screen recording control module.
In step S51, the first screen image signal is further sent to a third conversion module of the signal conversion module. The recording step may further include: the third conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control module; and after the screen driving control module receives the second screen image signal sent by the signal conversion module, the liquid crystal screen is driven to display the received second screen image signal. This step may be performed simultaneously with step S52.
The recording step further comprises: when the screen recording is required to be stopped, the first communication interface of the main chip sends a screen recording stopping notification to the second communication interface of the screen recording control module, and the screen recording control module exits the camera recording mode after receiving the screen recording stopping notification.
In step S51, the main chip turns on the screen recording indicator light while sending a screen recording notification to the screen recording control module.
And when the main chip sends a screen recording stopping notification to the screen recording control module, the screen recording indicating lamp is turned off.
The playback step is shown in fig. 6 and includes the following steps:
step S61: the screen recording control module detects whether a playback instruction for playing back the recorded video image stored in the storage device of the screen recording control module is received; the playback instruction can be a recorded video image stored in a storage device of the click screen recording control module;
step S62: the screen recording control module enters a playback mode after receiving the playback instruction, stops screen recording operation, simultaneously sends a screen recording stop notification to a first communication interface of the main chip through a second communication interface, and sends a video image to be played back to the first video image interface of the main chip through a second video image interface;
step S63: after receiving the screen recording stopping notification, the main chip stops the screen recording function, for example, the main chip does not perform image processing on the external video image signal and the internal video image signal any more, so as to avoid loop recording; performing image processing on the received video image to be played back to obtain a first screen image signal, and sending the first screen image signal to a third conversion module;
step S64: the third conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control chip;
step S65: and after the screen driving control chip receives the second screen image signal sent by the third conversion module, the liquid crystal screen is driven to display the received second screen image signal.
In step S63, the main chip turns off the screen recording indicator light after receiving the screen recording stop notification.
The screen recording system and the screen recording method provided by the embodiment of the invention convert video image signals (such as HDMI signals) into camera signals (such as MIPI-CSI2 signals), so that the screen recording control module can record screen contents in a camera recording mode without additionally arranging a camera.
The screen recording system and the screen recording method provided by the embodiment of the invention can be used for intelligent mobile equipment such as a tablet, a mobile phone and the like.
Those of skill in the art will understand that the logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A screen recording system, comprising: the device comprises a main chip, a screen recording control module and a signal conversion module; the main chip is connected with the screen recording control module and the signal conversion module, and the signal conversion module is also connected with the screen recording control module; the main chip processes the video image signal into a first screen image signal and outputs the first screen image signal;
the signal conversion module is used for performing corresponding signal conversion and output on the first screen image signal output by the main chip according to the task; when the task is screen recording, the signal conversion module converts a first screen image signal output by the main chip into a camera signal and outputs the camera signal to the screen recording control module;
and the screen recording control module is used for entering a camera recording mode after receiving a screen recording notification sent by the main chip and recording the camera signal converted and output by the signal conversion module.
2. The screen recording system of claim 1, wherein the signal conversion module comprises a first conversion module and a second conversion module, the first conversion module of the signal conversion module is connected with the main chip and the second conversion module, and the second conversion module is further connected with the screen recording control module;
the first conversion module converts a first screen image signal output by the main chip into a video image signal, and the second conversion module converts the video image signal obtained by the conversion of the first conversion module into a camera signal.
3. The screen recording system of claim 2, further comprising a screen driving control module, wherein the signal conversion module further comprises a third conversion module, and the third conversion module of the signal conversion module is connected to the main chip and the screen driving control module; the third conversion module converts the first screen image signal output by the main chip into a second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display when receiving the second screen image signal.
4. The screen recording system of claim 3, wherein the screen recording control module enters a playback mode after receiving a playback instruction for playing back the recorded video image, sends the video image to be played back to the main chip for image processing, and the main chip outputs the first screen image after performing image processing on the video image to be played back; when the task is playback, the signal conversion module converts the first screen image signal output by the main chip into the second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display.
5. The screen recording system according to claim 3, wherein when the task is screen recording, the signal conversion module further converts the first screen image signal output by the main chip into a second screen image signal and outputs the second screen image signal to the screen driving control module, and the screen driving control module drives the display screen to display.
6. The screen recording system of claim 1, wherein the main chip comprises a first communication interface and a first video image interface, and the screen recording control module comprises a second communication interface and a second video image interface; the first communication interface of the main chip is connected with the second communication interface of the screen recording control module; and a first video image interface of the main chip is connected with a second video image interface of the screen recording control module.
7. The screen recording system according to any one of claims 1 to 6, wherein the camera signal is an MIPI CSI-2 signal.
8. A screen recording method of a screen recording system according to any one of claims 1 to 7, wherein the screen recording method comprises a recording step including:
the main chip sends a screen recording notification to the screen recording control module, processes the received external video image signal or internal video image signal into a first screen image signal and sends the first screen image signal to the signal conversion module;
the signal conversion module converts the received first screen image signal into a camera signal and sends the camera signal to the screen recording control module;
and the screen recording control module receives a screen recording notice sent by the main chip, enters a camera recording mode, and starts recording when receiving a camera signal sent by the signal conversion module.
9. The screen recording method according to claim 8, further comprising a playback step, the playback step comprising the steps of:
the screen recording control module detects whether a playback instruction for playing back the recorded video image is received;
the screen recording control module enters a playback mode after receiving the playback instruction, stops screen recording operation, and simultaneously sends a screen recording stop notification and a video image needing to be played back to the main chip;
after receiving the screen recording stopping notification, the main chip stops the screen recording function, performs image processing on the received video image to be played back to obtain a first screen image signal, and sends the first screen image signal to the signal conversion module;
the signal conversion module converts the received first screen image signal into a second screen image signal and sends the second screen image signal to the screen driving control chip;
and after the screen driving control chip receives the second screen image signal sent by the signal conversion module, the liquid crystal screen is driven to display the received second screen image signal.
10. The screen recording method according to claim 8 or 9, wherein the recording step further comprises: when the screen recording needs to be stopped, the main chip sends a screen recording stopping notification to the screen recording control module and quits the camera recording mode at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181417.5A CN109922292B (en) | 2019-03-11 | 2019-03-11 | Screen recording system and screen recording method thereof |
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| KR102007749B1 (en) * | 2012-08-29 | 2019-08-06 | 삼성전자주식회사 | Screen recording method of terminal, apparauts thereof, and medium storing program source thereof |
| CN103618884A (en) * | 2013-12-16 | 2014-03-05 | 东方网力科技股份有限公司 | Video transmission method, device and tablet computer |
| CN106851386B (en) * | 2017-03-27 | 2020-05-19 | 海信视像科技股份有限公司 | Method and device for realizing augmented reality in television terminal based on Android system |
| CN107102694A (en) * | 2017-06-06 | 2017-08-29 | 南京巨鲨显示科技有限公司 | A kind of display with kinescope recording function |
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