Video processing device and video processing method supporting free pairing of child-mother picture mode and dual-picture mode

Abstract

The invention discloses a video processing device and a video processing method supporting free pairing of a child-mother picture mode and a double-picture mode. The video processing device comprises a first concentrator, a second concentrator and a zoom control module. The first hub and the second hub acquire a first video stream and a second video stream from a first signal source and a second signal source, respectively. The scaling control module acquires a first video stream and a second video stream from the first hub and the second hub, respectively. When the zoom control module receives a child-mother picture mode instruction, the zoom control module synthesizes the first video stream and the second video stream to generate a child-mother picture video stream, and the display device displays the child-mother picture video stream. When the zoom control module receives a dual-screen mode instruction, the zoom control module synthesizes the first video stream and the second video stream to generate a dual-screen video stream, and the display device displays the dual-screen video stream.

Description

Technical Field

[0001] This invention relates to a video processing apparatus and a video processing method, and particularly to a video processing apparatus and a video processing method that support free pairing of mother-child screen mode and dual screen mode. Background Technology

[0002] Currently, there is a video processing device that can act as a bridge between multiple video sources and multiple displays. This video processing device can be connected to a keyboard and mouse, allowing users to switch the display pairing between video sources and displays by issuing commands via the keyboard or mouse. This allows users to adjust the image configuration according to the characteristics of the video sources and displays or their personal preferences.

[0003] However, current video processing devices can only achieve the application of displaying a single video stream on a single monitor, and cannot support the application of multiple video streams corresponding to multiple monitors, nor can they achieve the application of master-slave or dual-screen. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a video processing device and video processing method that supports free pairing of mother-child screen mode and dual screen mode, in order to overcome the shortcomings of the prior art.

[0005] To address the aforementioned technical problems, according to a first aspect, embodiments of the present invention provide a video processing apparatus supporting freely paired master-slave screen mode and dual-screen mode. The video processing apparatus is applicable to a first display device and includes a first hub, a second hub, and a first scaling control module. The first hub is used to acquire a first video stream from a first signal source. The second hub is used to acquire a second video stream from a second signal source. The first scaling control module is connected to the first hub and the second hub, and acquires the first video stream from the first hub and the second video stream from the second hub, respectively. When the first scaling control module receives a master-slave screen mode instruction, it synthesizes the first video stream and the second video stream to generate a first master-slave screen video stream, which is then displayed on the first display device. When the first scaling control module receives a dual-screen mode instruction, it synthesizes the first video stream and the second video stream to generate a first dual-screen video stream, which is then displayed on the first display device.

[0006] According to a second aspect, embodiments of the present invention provide a video processing method supporting freely paired parent-child screen mode and dual-screen mode. The video processing method includes: a first hub acquiring a first video stream from a first signal source; a second hub acquiring a second video stream from a second signal source; a first scaling control module acquiring the first video stream and the second video stream from the first hub and the second hub respectively; when the first scaling control module receives a parent-child screen mode instruction, the first scaling control module synthesizes the first video stream and the second video stream to generate a first parent-child screen video stream, which is then displayed by a first display device; when the first scaling control module receives a dual-screen mode instruction, the first scaling control module generates a first dual-screen video stream, which is then displayed by the first display device.

[0007] The beneficial effect of the present invention is that, based on the video processing device and video processing method provided by the present invention that support free pairing of mother-and-child screen mode and dual screen mode, users can control multiple different video streams provided by multiple different signal sources according to different needs, and display them on the display device in mother-and-child screen mode or dual screen mode.

[0008] To further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the video processing device of the first embodiment of the present invention, which is used to pair mother and child video images.

[0010] Figure 2 This is a schematic diagram of a video processing device paired with dual-screen video according to the first embodiment of the present invention.

[0011] Figure 3 This is a flowchart of a video processing method supporting free pairing of mother-child and dual-screen modes according to the first embodiment of the present invention.

[0012] Figure 4 This is a schematic diagram of the video processing device of the second embodiment of the present invention, which is used to pair mother and child video images.

[0013] Figure 5 This is a flowchart of a video processing method supporting free pairing of mother-child and dual-screen modes according to a second embodiment of the present invention.

[0014] Figure 6 This is a schematic diagram illustrating the pairing of mother-child video and dual-view video in the video processing device of the third embodiment of the present invention. Detailed Implementation

[0015] The following specific embodiments illustrate the implementation of the "video processing apparatus and video processing method supporting free pairing of mother-and-child screen modes and dual-screen modes" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated beforehand. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0016] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein may, depending on the context, include any combination of one or more of the associated listed items.

[0017] Figure 1 This is a schematic diagram illustrating the pairing of mother-child video feeds using the video processing apparatus of the first embodiment of the present invention. Figure 1 As shown, the video processing device includes a first hub 10, a second hub 20, and a first scaling control module 30. In this embodiment of the invention, the first hub 10 and the second hub 20 are two identical DisplayPort Hubs (DP Hubs). The first hub 10 includes a video input port 101, a first video output port 102, a second video output port 103, and a third video output port 104, while the second hub 20 includes a video input port 201, a first video output port 202, a second video output port 203, and a third video output port 204. The video input port 101 of the first hub 10 is used to connect to a first signal source S1 to receive a first video stream V1, while the video input port 201 of the second hub 20 is used to connect to a second signal source S2 to receive a second video stream V2. The video specifications, video input ports, and the number of video output ports described above are merely examples, and the invention is not limited thereto.

[0018] The first scaling control module 30 includes a first video input port 301, a second video input port 302, a video output port 303, and a video synthesis circuit 304, wherein the video synthesis circuit 304 is connected to the first video input port 301, the second video input port 302, and the video output port 303.

[0019] The first video input port 301 is connected to the first video output port 102 of the first hub 10, the second video input port 302 is connected to the first video output port 202 of the second hub 20, and the video output port 303 is connected to the first display device M1.

[0020] When the user needs the first video stream V1 provided by the first signal source S1 and the second video stream V2 provided by the second signal source S2 to be displayed on the first display device M1 in a picture-in-picture mode, the user operates the control interface T to transmit the picture-in-picture mode command k1 to the first scaling control module 30.

[0021] For example, the control interface T includes a mouse and a keyboard. When the user presses the first key on the keyboard (e.g., F1), the control interface T transmits the screen mode command k1 to the first zoom control module 30.

[0022] When the first scaling control module 30 receives the child screen mode instruction k1 from the control interface T, the first video synthesis circuit 304 superimposes the first video stream V1 and the second video stream V2 according to the child screen mode instruction k1 to generate a child screen video stream, and the first display device M1 displays the child screen video stream.

[0023] When the first display device M1 displays a parent-child video stream, the first display device M1 displays an overlapping first sub-screen and a second sub-screen, the area of ​​the first sub-screen is larger than the area of ​​the second sub-screen, and the first sub-screen and the second sub-screen respectively display the first video stream V1 and the second video stream V2.

[0024] Figure 2 This is a schematic diagram of a video processing device paired with dual-screen video according to a first embodiment of the present invention. (Comparison) Figure 2 and Figure 1 The difference lies in that when the user needs the first video stream V1 provided by the first signal source S1 and the second video stream V2 provided by the second signal source S2 to be displayed in a dual-screen mode on the first display device M1, the user operation control interface T transmits the dual-screen mode command k2 to the first scaling control module 30.

[0025] For example, when the user presses the second key on the keyboard (e.g., F2), the control interface T transmits the dual-screen mode command k2 to the first zoom control module 30.

[0026] When the first scaling control module 30 receives the dual-screen mode instruction k2 from the control interface T, the video synthesis circuit 304 arranges the first video stream V1 and the second video stream V2 side by side according to the dual-screen mode instruction k2 to generate a dual-screen video stream, and the first display device M1 displays the dual-screen video stream.

[0027] When the first display device M1 displays dual video streams, the first display device M1 displays a first sub-screen and a second sub-screen that are side by side and do not overlap. The area of ​​the first sub-screen is equal to the area of ​​the second sub-screen, and the first sub-screen and the second sub-screen respectively display the first video stream V1 and the second video stream V2.

[0028] Figure 3 This is a flowchart illustrating a video processing method supporting freely paired mother-and-child screen mode and dual-screen mode according to a first embodiment of the present invention. See also... Figure 3 In step S301, the first hub 10 obtains the first video stream V1 from the first signal source S1.

[0029] In step S302, the second hub 20 obtains the second video stream V2 from the second signal source S2.

[0030] In step S303, the first scaling control module 30 obtains the first video stream V1 and the second video stream V2 from the first hub 10 and the second hub 20, respectively.

[0031] In step S304, the first scaling control module 30 receives the parent-child screen mode instruction k1 from the control interface T and synthesizes the first video stream V1 and the second video stream V2 according to the parent-child screen mode instruction k1 to generate a parent-child screen video stream.

[0032] Specifically, the video synthesis circuit 304 of the first scaling control module 30 superimposes the first video stream V1 and the second video stream V2 to generate a mother-child video stream.

[0033] In step S305, the first scaling control module 30 receives the dual-screen mode instruction k2 from the control interface T and synthesizes the first video stream V1 and the second video stream V2 according to the dual-screen mode instruction k2 to generate a dual-screen video stream.

[0034] Specifically, the video synthesis circuit 304 of the first scaling control module 30 arranges the first video stream V1 and the second video stream V2 side by side to generate a dual-view video stream.

[0035] In step S306, the video output port 303 of the first scaling control module 30 transmits the mother-child video stream to the first display device M1, and the first display device M1 displays the mother-child video stream.

[0036] In step S307, the dual-screen video stream is transmitted from the video output port 303 of the first scaling control module 30 to the first display device M1, and the dual-screen video stream is displayed by the first display device M1.

[0037] Therefore, multiple video streams from multiple signal sources can be selectively displayed on the display device in either a mother-and-child view mode or a dual-view mode.

[0038] Figure 4 This is a schematic diagram of the video processing device of the second embodiment of the present invention, which is used to pair mother and child video images. Figure 4 Compared to Figure 1 The difference lies in that the video processing device further includes a first multiplexer 40 and a second multiplexer 50. The first multiplexer 40 includes a first signal input terminal 401, a second signal input terminal 402, and a signal output terminal 403, while the second multiplexer 50 includes a first signal input terminal 501, a second signal input terminal 502, and a signal output terminal 503. The first scaling control module 30 also includes a screen display processing circuit 305, which is connected to the video synthesis circuit 304. The screen display processing circuit 305 includes an embedded display output port 3051, which is connected to the video output port 303.

[0039] The video input port 101 of the first hub 10 is used to connect to the first signal source S1 to receive the first video stream V1 and the second video stream V2. The video input port 201 of the second hub 20 is used to connect to the second signal source S2 to receive the third video stream V3 and the fourth video stream V4.

[0040] The first video output port 102, the second video output port 103, and the third video output port 104 of the first hub 10 are respectively connected to the first signal input terminal 401 of the first multiplexer 40, the second signal input terminal 502 of the second multiplexer 50, and the first video input port 301 of the first scaling control module 30.

[0041] The first video output port 202, the second video output port 203, and the third video output port 204 of the second hub 20 are respectively connected to the second video input port 302 of the first scaling control module 30, the first signal input terminal 501 of the second multiplexer 50, and the second signal input terminal 402 of the first multiplexer 40.

[0042] The signal output terminal 403 of the first multiplexer 40 is connected to the first display device M1, the video output port 303 of the first scaling control module 30 is connected to the second display device M2, and the signal output terminal 503 of the second multiplexer 50 is connected to the third display device M3.

[0043] The user needs the first display device M1 to display the first video stream V1, the second display device M2 to display the second video stream V2 and the third video stream V3 in a picture-in-picture mode, and the third display device M3 to display the fourth video stream V4. Therefore, the user operates the control interface T to transmit the first path command k3 to the first hub 10, the second path command k4 to the second hub 20, the picture-in-picture mode command k1 and the screen display start command k5 to the first scaling control module 30, the first control signal k6 to the first multiplexer 40, and the second control signal k7 to the second multiplexer 50.

[0044] The first hub 10 outputs the first video stream V1 and the second video stream V2 via the first video output port 102 and the third video output port 104 respectively, according to the first path instruction k3. The second hub 20 outputs the third video stream V3 and the fourth video stream V4 via the first video output port 202 and the second video output port 203 respectively, according to the second path instruction k4.

[0045] The video compositing circuit 304 superimposes the second video stream V2 and the third video stream V3 according to the parent-child picture mode instruction k1 to generate a parent-child picture video stream, and the video compositing circuit 304 transmits the parent-child picture video stream to the screen display processing circuit 305.

[0046] The screen display processing circuit 305 generates a screen display menu D1 according to the screen display start command k5. The screen display menu D1 includes adjustments for color, color temperature, contrast, brightness, backlight, and resolution, as well as subtitle information.

[0047] The screen display processing circuit 305 embeds the screen display menu D1 into the parent-child video stream and transmits the parent-child video stream containing the embedded screen display menu D1 to the video output port 303 of the first scaling control module 30 through the embedded display output port 3051. The video output port 303 of the first scaling control module 30 transmits the parent-child video stream containing the embedded screen display menu D1 to the second display device M2. The second display device M2 displays an overlapping first sub-screen and a second sub-screen according to the parent-child video stream containing the embedded screen display menu D1. The first sub-screen and the second sub-screen respectively display the second video stream V2 and the third video stream V3, and the screen display menu D1 is superimposed on the first sub-screen.

[0048] The first multiplexer 40 transmits the first video stream V1 to the first display device M1 according to the first control signal k6, and the first display device M1 displays the first video stream V1.

[0049] The second multiplexer 50 transmits the fourth video stream V4 to the third display device M3 according to the second control signal k7, and the third display device M3 displays the fourth video stream V4.

[0050] Therefore, multiple video streams provided by multiple signal sources can be displayed on different display devices in both general mode and picture-in-picture mode.

[0051] Figure 5 This is a flowchart of a video processing method according to a second embodiment of the present invention. Figure 5 Steps S501 to S505 of the video processing method correspond to respectively Figure 3 Steps S301 to S305. Figure 5 The video processing method compared to Figure 3 The difference in the video processing method is that in step S506, the screen display processing circuit 305 of the first scaling control module 30 receives the screen display start command k5 from the control interface T and generates the screen display menu D1 according to the screen display start command k5.

[0052] In step S507, the screen display processing circuit 305 embeds the screen display menu D1 into the child screen video stream.

[0053] In step S508, the screen display processing circuit 305 embeds the screen display menu D1 into the dual-screen video stream.

[0054] In step S509, the embedded display output port 3051 of the screen display processing circuit 305 transmits the child screen video stream of the embedded screen display menu D1 to the video output port 303 of the first scaling control module 30.

[0055] In step S510, the embedded display output port 3051 of the screen display processing circuit 305 transmits the dual-screen video stream of the embedded screen display menu D1 to the video output port 303 of the first scaling control module 30.

[0056] In step S511, the video output port 303 of the first scaling control module 30 transmits the sub-screen video stream embedded in the screen display menu D1 to the first display device M1, and the first display device M1 displays the screen display menu D1 and the sub-screen video stream.

[0057] In step S512, the video output port 303 of the first scaling control module 30 transmits the dual-screen video stream embedded in the screen display menu D1 to the first display device M1, and the first display device M1 displays the screen display menu D1 and the dual-screen video stream.

[0058] Therefore, multiple video streams from multiple signal sources can be selectively displayed on different display devices in dual-screen mode and mother-and-child screen mode, and each display device displays a screen display menu for users to adjust color, color temperature, contrast, brightness, backlight, or resolution, as well as read subtitle information.

[0059] Figure 6 This is a schematic diagram illustrating the pairing of mother-child video and dual-view video in the video processing device of the third embodiment of the present invention. Figure 6 The video processing device compared to Figure 4 The difference in video processing devices lies in, Figure 6 The video processing device further includes a second scaling control module 60, which includes a first video input port 601, a second video input port 602, a video output port 603, a video compositing circuit 604, and a screen display processing circuit 605. The first video input port 601 and the second video input port 602 are connected to the video compositing circuit 604, which is connected to the screen display processing circuit 605. The screen display processing circuit 605 includes an embedded display output port 6051, which is connected to the video output port 603.

[0060] The first hub 10 also includes a fourth video output port 105, while the second hub 20 also includes a fourth video output port 205.

[0061] The fourth video output port 105 of the first hub 10 is connected to the first video input port 601 of the second scaling control module 60, while the fourth video output port 205 of the second hub 20 is connected to the second video input port 602 of the second scaling control module 60.

[0062] The video output port 603 of the second scaling control module 60 is connected to the third display device M3, while the signal output port 503 of the second multiplexer 50 is connected to the fourth display device M4.

[0063] The user needs the second display device M2 to display the first video stream V1 and the third video stream V3 in dual-screen mode, and the third display device M3 to display the second video stream V2 and the fourth video stream V4 in parent-child screen mode. Therefore, the user operates the control interface T to transmit the third path command k8 to the first hub 10, transmit the fourth path command k9 to the second hub 20, transmit the dual-screen mode command k2 and the screen display start command k5 to the first scaling control module 30, and transmit the parent-child screen mode command k1 and the screen display start command k5 to the second scaling control module 60.

[0064] The first hub 10 outputs the first video stream V1 and the second video stream V2 via the third video output port 104 and the fourth video output port 105 respectively, according to the third path instruction k8. The second hub 20 outputs the third video stream V3 and the fourth video stream V4 via the first video output port 202 and the fourth video output port 205 respectively, according to the fourth path instruction k9.

[0065] The video compositing circuit 304 arranges the first video stream V1 and the third video stream V3 side by side according to the dual-screen mode instruction k2 to generate a dual-screen video stream, and the video compositing circuit 304 transmits the dual-screen video stream to the screen display processing circuit 305.

[0066] The screen display processing circuit 305 generates a screen display menu D1 according to the screen display start command k5. The screen display processing circuit 305 embeds the screen display menu D1 into the dual-screen video stream and transmits the dual-screen video stream containing the embedded screen display menu D1 to the video output port 303 of the first scaling control module 30 through the embedded display output port 3051. The video output port 303 of the first scaling control module 30 transmits the dual-screen video stream containing the embedded screen display menu D1 to the second display device M2.

[0067] The second display device M2 displays a first sub-screen and a second sub-screen that are side by side and do not overlap, according to the dual-screen video streams embedded in the screen display menu D1. The first sub-screen and the second sub-screen respectively display the first video stream V1 and the third video stream V3, and the screen display menu D1 is superimposed on the first sub-screen.

[0068] The video compositing circuit 604 superimposes the second video stream V2 and the fourth video stream V4 according to the parent-child picture mode instruction k1 to generate a parent-child picture video stream, and the video compositing circuit 604 transmits the parent-child picture video stream to the screen display processing circuit 605.

[0069] The screen display processing circuit 605 generates a screen display menu D2 according to the screen display start command k5. The screen display menu D2 includes adjustments for color, color temperature, contrast, brightness, backlight, and resolution, as well as subtitle information.

[0070] The screen display processing circuit 605 embeds the screen display menu D2 into the child-child video stream, and transmits the child-child video stream containing the embedded screen display menu D2 to the video output port 603 of the second scaling control module 60 through the embedded display output port 6051. The video output port 603 of the second scaling control module 60 transmits the child-child video stream containing the embedded screen display menu D2 to the third display device M3.

[0071] The third display device M3 displays an overlapping first sub-screen and a second sub-screen according to the parent-child video streams embedded in the screen display menu D2. The first sub-screen and the second sub-screen respectively display the second video stream V2 and the fourth video stream V4, and the screen display menu D2 is superimposed on the first sub-screen.

[0072] Therefore, multiple video streams provided by multiple signal sources can be displayed on different display devices in dual-screen mode and mother-and-child screen mode, and each display device displays a screen display menu for users to adjust color, color temperature, contrast, brightness, backlight, or resolution, as well as read subtitle information.

[0073] The beneficial effect of the present invention is that, based on the video processing device and video processing method provided by the present invention that support free pairing of mother-and-child screen mode and dual screen mode, users can control multiple different video streams provided by multiple different signal sources according to different needs, and display them on the display device in mother-and-child screen mode or dual screen mode.

[0074] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, any equivalent technical changes made based on the content of the present invention specification and drawings shall fall within the scope of the patent application of the present invention.

[0075] Explanation of reference numerals in the attached figures

[0076] 10: First Hub

[0077] 101: Video input port

[0078] 102: First video output port

[0079] 103: Second video output port

[0080] 104: Third video output port

[0081] 105: Fourth video output port

[0082] 20: Second Hub

[0083] 201: Video input port

[0084] 202: First video output port

[0085] 203: Second video output port

[0086] 204: Third video output port

[0087] 205: Fourth video output port

[0088] 30: First scaling control module

[0089] 301: First video input port

[0090] 302: Second video input port

[0091] 303: Video output port

[0092] 304: Video Combining Circuit

[0093] 305: Screen display processing circuit

[0094] 3051: Embedded display output port

[0095] 40: First Multiplexer

[0096] 401: First signal input terminal

[0097] 402: Second signal input terminal

[0098] 403: Signal Output Terminal

[0099] 50: Second Multiplexer

[0100] 501: First signal input terminal

[0101] 502: Second signal input terminal

[0102] 503: Signal output terminal

[0103] 60: Second scaling control module

[0104] 601: First video input port

[0105] 602: Second video input port

[0106] 603: Video output port

[0107] 604: Video Combining Circuit

[0108] 605: Screen display processing circuit

[0109] 6051: Embedded display output port

[0110] M1: First display device

[0111] M2: Second display device

[0112] M3: Third display device

[0113] M4: Fourth display device

[0114] S1: First signal source

[0115] S2: Second signal source

[0116] V1: First Video Stream

[0117] V2: Second Video Stream

[0118] V3: Third Video Stream

[0119] V4: Fourth Video Stream

[0120] D1-D2: On-screen menu

[0121] T: Control Interface

[0122] k1: Mother-Child Screen Mode Command

[0123] k2: Dual-screen mode command

[0124] k3: First path instruction

[0125] k4: Second path instruction

[0126] k5: Screen displays startup command

[0127] k6: First control signal

[0128] k7: Second control signal

[0129] k8: Third path instruction

[0130] k9: Fourth path instruction

[0131] S301~S307, S501~S512: Steps

Claims

1. A video processing apparatus supporting free pairing of mother-and-child screen modes and dual-screen modes, applicable to a first display device, wherein the video processing apparatus comprises: A first hub is used to acquire a first video stream from a first signal source; A second hub is used to acquire a second video stream from a second signal source; A first scaling control module is connected to the first hub and the second hub; When the first scaling control module receives a parent-child screen mode instruction, the first scaling control module synthesizes the first video stream and the second video stream to generate a first parent-child screen video stream, and the first display device displays the first parent-child screen video stream. When the first scaling control module receives a dual-screen mode instruction, the first scaling control module synthesizes the first video stream and the second video stream to generate a first dual-screen video stream, and the first display device displays the first dual-screen video stream.

2. The video processing apparatus according to claim 1, wherein, The first scaling control module includes a video compositing circuit, which superimposes the first video stream and the second video stream according to the parent-child picture mode instruction to generate the first parent-child picture video stream. The first scaling control module arranges the first video stream and the second video stream side by side according to the dual-screen mode instruction to generate the first dual-screen video stream.

3. The video processing apparatus according to claim 1, wherein, When the first display device displays the first parent-child video stream, the first display device displays an overlapping first sub-screen and a second sub-screen, and the first sub-screen and the second sub-screen respectively display the first video stream and the second video stream; when the first display device displays the first dual-screen video stream, the display device displays a side-by-side and non-overlapping first sub-screen and a second sub-screen, and the first sub-screen and the second sub-screen respectively display the first video stream and the second video stream.

4. The video processing apparatus according to claim 2, wherein, The first scaling control module further includes a screen display processing circuit, which is connected to the video synthesis circuit. The screen display processing circuit generates a screen display menu according to a screen display start command. The screen display processing circuit includes an embedded display output port, which is connected to the video output port of the first scaling control module. The embedded display output port outputs the screen display menu.

5. The video processing apparatus according to claim 4, wherein, When the first display device displays the first parent-child video stream, the first display device displays an overlapping first sub-screen and a second sub-screen, the first sub-screen and the second sub-screen respectively display the first video stream and the second video stream, and the screen display menu is superimposed on the first sub-screen or the second sub-screen.

6. The video processing apparatus according to claim 4, wherein, When the first display device displays the first dual-screen video stream, the first display device displays a first sub-screen and a second sub-screen that are side by side and do not overlap with each other. The first sub-screen and the second sub-screen respectively display the first video stream and the second video stream, and the screen display menu is superimposed on the first sub-screen or the second sub-screen.

7. The video processing apparatus according to claim 1, further comprising a second scaling control module, the second scaling control module being connected to the first hub and the second hub and respectively acquiring a third video stream and a fourth video stream from the first hub and the second hub, the second scaling control module being used to connect to a second display device; when the second scaling control module receives the parent-child screen mode instruction, the second scaling control module synthesizes the third video stream and the fourth video stream to generate a second parent-child screen video stream and the second display device displays the second parent-child screen video stream; when the second scaling control module receives the dual-screen mode instruction, the second scaling control module synthesizes the third video stream and the fourth video stream to generate a second dual-screen video stream and the second display device displays the second dual-screen video stream.

8. A video processing method supporting free pairing of mother-and-child view modes and dual-view modes, wherein, The video processing method includes: The first video stream is acquired from the first signal source by the first hub; The second video stream is acquired from the second signal source by the second hub; The first scaling control module obtains the first video stream and the second video stream from the first hub and the second hub, respectively. When the first scaling control module receives a parent-child screen mode instruction, the first scaling control module synthesizes the first video stream and the second video stream to generate a first parent-child screen video stream, which is then displayed by the first display device. When the first scaling control module receives a dual-screen mode instruction, the first scaling control module combines the first video stream and the second video stream to generate a first dual-screen video stream, which is then displayed by the first display device.

9. The video processing method according to claim 8, wherein, Generating the first parent-child video stream includes: superimposing the first video stream and the second video stream to generate the first parent-child video stream; generating the first dual-view video stream includes: arranging the first video stream and the second video stream side by side to generate the first dual-view video stream.

10. The video processing method according to claim 8, wherein, Displaying the first parent-child video stream includes: displaying a first sub-screen and a second sub-screen that overlap each other, wherein the first sub-screen and the second sub-screen respectively display the first video stream and the second video stream; displaying the first dual-screen video stream includes: displaying a first sub-screen and a second sub-screen that are side by side and do not overlap each other, wherein the first sub-screen and the second sub-screen respectively display the first video stream and the second video stream.

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