CN114513618A

CN114513618A - System, method and equipment for collecting high-definition HDMI video signal

Info

Publication number: CN114513618A
Application number: CN202210381264.0A
Authority: CN
Inventors: 李锦诗; 陈兰波
Original assignee: Xinhuasan Intelligent Terminal Co ltd
Current assignee: Xinhuasan Intelligent Terminal Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-05-17

Abstract

The embodiment of the application discloses a system, a method and equipment for collecting high-definition HDMI video signals. This application is through dividing into video signal and audio signal with external input's HDMI signal to convert the standard MIPI signal of N passageway with video signal and send for general platform, convert audio signal into standard audio signal and send for general platform, so that general platform plays high definition video based on the standard MIPI signal and the standard audio signal of N passageway. According to the scheme, the transmission rate of the standard MIPI signals transmitted through the N channels is N times that of the standard MIPI signals transmitted through one channel, therefore, N is set according to the requirement of the bandwidth rate of the high-definition video, the standard MIPI signals and the standard audio signals of the N channels received by the universal platform can be guaranteed to be signals capable of playing the high-definition video, and the high-definition video HDMI video signals with different bandwidth rate requirements are collected.

Description

System, method and equipment for collecting high-definition HDMI video signal

Technical Field

The application relates to the field of computers, in particular to a system, a method and equipment for collecting high-definition HDMI video signals.

Background

An HDMI (High Definition Multimedia Interface) is a High Definition digital Multimedia Interface widely used in various electronic display devices in various industries for transmitting video signals, and is provided in devices such as televisions, set-top boxes, computers, digital audio devices, game machines, DVD players, video cameras, and video recorders. The video signal transmitted through the HDMI interface is an HDMI signal.

At present, a universal platform (for example, an Inter x86 platform) on an electronic device collects an externally input HDMI signal, converts the HDMI signal into standard USB2.0 or USB3.0 large-capacity data, and outputs the converted data to a processor for processing through a USB standard interface. But limited by the USB transmission bandwidth (the USB2.0 transmission rate is 480Mbps, and the USB3.0 transmission rate is 5 Gbps), the resolution of the finally acquired video data can only reach 1080p resolution (the bandwidth rate requirement ≈ 3Gbps), and cannot meet the requirements of acquiring 4K30 frame high definition video data (the bandwidth rate requirement ≈ 6Gbps) and 4K60 frame high definition video data (the bandwidth rate requirement ≈ 12 Gbps).

Disclosure of Invention

The application discloses a system, a method and equipment for collecting high-definition HDMI video signals, which are used for collecting the HDMI video signals of high-definition videos with different bandwidth rate requirements.

According to a first aspect of the embodiments of the present application, a method applied to a universal platform for acquiring high definition HDMI video signals is provided, which is applied to a system for acquiring high definition HDMI video signals by a universal platform, and the system at least includes an HDMI input module, a first HDMI receiving module, an audio and video signal distribution module, an MIPI signal conversion module, an audio processing module and a universal platform, wherein the MIPI signal conversion module is connected with the universal platform through a standard MIPI interface, and the audio processing module is connected with the universal platform through a standard audio interface;

the first HDMI receiving module is used for receiving an HDMI signal which is transmitted by the HDMI input module and is input from the outside and transmitting the HDMI signal to the audio and video signal distribution module;

the audio and video signal distribution module is used for dividing the HDMI signal into a video signal and an audio signal, inputting the video signal to the MIPI signal conversion module, and inputting the audio signal to the audio processing module;

the MIPI signal conversion module is used for performing high-speed data conversion on the video signals and converting the video signals into standard MIPI signals of N channels, wherein N is determined by the requirement of bandwidth rate for playing high-definition video, N is greater than 1, and the standard MIPI signals of the N channels are respectively sent to the general platform through N standard MIPI interfaces;

the audio processing module converts the audio signal into a standard audio signal and sends the standard audio signal to the universal platform through a standard audio interface;

the universal platform is used for receiving the standard MIPI signals of the N channels sent by the MIPI signal conversion module through N local MIPI signal interfaces respectively, receiving the standard audio signals sent by the audio processing module through a local audio interface, and playing high-definition videos based on the standard MIPI signals of the N channels and the standard audio signals.

According to a second aspect of the embodiments of the present application, there is provided a method for acquiring a high definition HDMI video signal by a universal platform, the method being applied to an electronic component in an electronic device, the electronic component being connected between an HDMI input module in the electronic device and the universal platform, the method including:

receiving an HDMI signal from external input transmitted by the HDMI input module, and dividing the HDMI signal into a video signal and an audio signal;

and the video signals are subjected to high-speed data conversion and converted into standard MIPI signals of N channels, the N is determined by the requirement of bandwidth rate for playing high-definition video, the N is larger than 1, the standard MIPI signals of the N channels are respectively sent to the universal platform through N standard MIPI interfaces, the audio signals are converted into standard audio signals and sent to the universal platform through a standard audio interface, and therefore the universal platform plays the high-definition video according to the received standard MIPI signals of the N channels and the standard audio signals.

According to a third aspect of the embodiments of the present application, there is provided a method for acquiring a high definition HDMI video signal applied to a universal platform deployed in an electronic device, where the universal platform is connected to an electronic component set in the electronic device, and the electronic device at least includes: HDMI input module, electronic component and general platform, this method includes:

respectively receiving standard MIPI signals sent by the electronic component through N local MIPI signal interfaces to obtain standard MIPI signals of N channels;

receiving a standard audio signal sent by the electronic component through a local audio interface; the standard MIPI signals and the standard audio signals of the N channels are obtained by converting the received HDMI signals through the electronic component;

and playing high-definition video based on the standard MIPI signals of the N channels and the standard audio signals.

According to a fourth aspect of embodiments of the present application, there is provided an electronic apparatus including at least: HDMI input module, electronic component and general platform, electronic component connect in the HDMI input module in the electronic equipment with between the general platform, electronic component includes at least: the system comprises a first HDMI receiving module, an audio and video signal distribution module, an MIPI signal conversion module, an audio processing module, a standard MIPI interface and a standard audio interface, wherein the electronic component is connected with the universal platform through the standard MIPI interface and the standard audio interface;

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

according to the technical scheme, the HDMI signals input from the outside can be divided into the video signals and the audio signals, the video signals are converted into the standard MIPI signals of the N channels and sent to the general platform, the audio signals are converted into the standard audio signals and sent to the general platform, and the general platform plays the high-definition videos based on the standard MIPI signals and the standard audio signals of the N channels. According to the scheme, the transmission rate of the standard MIPI signals transmitted through the N channels is N times that of the standard MIPI signals transmitted through one channel, therefore, N is set according to the requirement of the bandwidth rate of the high-definition video, the standard MIPI signals and the standard audio signals of the N channels received by the universal platform can be guaranteed to be signals capable of playing the high-definition video, and the high-definition video HDMI video signals with different bandwidth rate requirements are collected.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a schematic structural diagram of a system for acquiring a high-definition HDMI video signal applied to a general platform according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another system for acquiring a high-definition HDMI video signal applied to a general platform according to an embodiment of the present application;

fig. 3 is a flowchart of a method for acquiring a high-definition HDMI video signal applied to a universal platform according to an embodiment of the present application;

fig. 4 is a flowchart of another method for acquiring a high-definition HDMI video signal applied to a general platform according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In order to make the technical solutions provided in the embodiments of the present application better understood and make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions in the embodiments of the present application are described in further detail below with reference to the accompanying drawings.

Before describing the embodiments provided herein, a brief summary of several terms referred to in this application will first be provided:

the 4K30 frame high definition video is a video with a resolution of 3840 × 2160 played at a rate of 30 frames per second, and the 4K60 frame high definition video is a video with a resolution of 3840 × 2160 played at a rate of 60 frames per second.

In the prior art, if a general platform such as an Intel x86 platform needs to acquire an HDMI video signal of 4K60 frame high-definition video, it needs to ensure that the transmission rate of video data is greater than 12Gbps when the HDMI video signal is acquired. This is because when playing a video frame in a 4K60 high-definition video, all the pixels in the video frame that need to be composed of 3840 × 2160 appear in a screen within a preset time difference, and human vision within the preset time difference cannot distinguish whether there is a pixel missing in the video frame. When the HDMI video signals of 4K60 frames are collected, since there are many pixel points (i.e., video data) constituting a video frame with a resolution of 3840 × 2160, in order to collect high-definition video that can be normally played, and to avoid problems such as missing pixel points that can be seen by human eyes when the video frame is played and pixel points that need to be disappeared in the previous video frame appearing in the next video frame, it is necessary to ensure that the time difference between clocks corresponding to each pixel point in each video frame is within the preset time difference range when the video data is transmitted to the general platform, and therefore, the requirement for the bandwidth of signal transmission when the HDMI video signals of 4K60 frames of high-definition video are collected is greater than 12 Gbps.

In order to acquire different types of high-definition video HDMI video signals and avoid the acquisition of HDMI video signals from being limited by USB transmission bandwidth, the embodiment of the application provides a system applied to a universal platform for acquiring high-definition HDMI video signals, so that for the different types of high-definition video HDMI video signals, the HDMI signals are converted into MIPI (Mobile Industry Processor Interface) signals of multiple channels, the bandwidth rate requirements of the different types of high-definition videos are met, and the acquisition of the different types of high-definition video HDMI video signals is realized. The following briefly describes a system applied to a universal platform for acquiring high definition HDMI video signals provided in an embodiment of the present application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a system for acquiring a high definition HDMI video signal by applying to a universal platform according to an embodiment of the present disclosure. As shown in fig. 1, the system at least includes an HDMI input module 10, a first HDMI receiving module 111, an audio/video signal distribution module 112, an MIPI signal conversion module 113, an audio processing module 114, and a general platform 12. As an embodiment, the first HDMI receiving module 111, the audio/video signal distribution module 112, the MIPI signal conversion module 113, and the audio processing module 114 in the system may be located in the same chip to form an electronic component 11. For example, the electronic component 11 in this embodiment may use a chip capable of processing MIPI signals, such as a dragon chip.

As an embodiment, the MIPI signal conversion module 113 in the system is connected to a standard MIPI interface for transmitting a standard MIPI signal, and the audio processing module 114 is connected to a standard audio interface for transmitting a standard audio signal. As shown in fig. 1, the MIPI signal conversion module 113 may be connected to the general platform 12 through a standard MIPI interface 115, and the audio processing module 114 may be connected to the general platform 12 through a standard audio interface 116. It should be noted that the number of standard MIPI interfaces and standard audio interfaces shown in fig. 1 for implementing the connection between the MIPI signal conversion module 113, the audio processing module 114 and the general platform 12 is only an example, and the application is not limited thereto.

Based on the system embodiment shown in fig. 1, the system applied to a universal platform for acquiring a high-definition HDMI video signal provided by the present application is described in detail below:

the HDMI input module 10 is configured to receive an HDMI signal from an external input.

As an embodiment, the HDMI input module 10 may be an HDMI interface on the electronic device for accessing an HDMI cable connected to other external electronic devices (such as a video camera, a video recorder, a television, etc.), where the HDMI interface is a physical interface provided on a housing of the electronic device, and the other external electronic devices transmit HDMI signals of high-definition video to the electronic device through the HDMI cable accessing the HDMI interface.

As an embodiment, the HDMI input module 10 may transmit an HDMI signal to the first HDMI receiving module 111 through the connection between the HDMI input module 10 and the first HDMI receiving module 111 after receiving an externally input HDMI signal.

The first HDMI receiving module 111 is configured to receive an HDMI signal transmitted by the HDMI input module from an external input, and transmit the HDMI signal to the audio/video signal distribution module 112.

The audio/video signal distribution module 112 is configured to divide the HDMI signal into a video signal and an audio signal, input the video signal to the MIPI signal conversion module, and input the audio signal to the audio processing module.

As shown in fig. 1, in the embodiment of the present system, one end of an audio/video signal distribution module 112 is connected to a first HDMI receiving module 111, and the other end of the audio/video signal distribution module 112 is connected to an MIPI signal conversion module 113 and an audio processing module 114, respectively. In this embodiment, when the first HDMI receiving module 111 transmits the HDMI signal to the audio/video signal distribution module 112, the audio/video signal distribution module 112 needs to decode the HDMI signal first, then divides the HDMI signal into a video signal and an audio signal based on the difference in the formats of the video data and the audio data in the HDMI signal, transmits the video signal to the MIPI signal conversion module 113 through the connection between the audio/video signal distribution module 112 and the MIPI signal conversion module 113, and transmits the audio signal to the audio processing module 114 through the connection between the audio/video signal distribution module 112 and the audio processing module 114.

The MIPI signal conversion module 113 is configured to perform high-speed data conversion on the video signal, convert the video signal into N-channel standard MIPI signals, and then send the N-channel standard MIPI signals to the universal platform 12 through the N standard MIPI interfaces, respectively. Where N is determined by the bandwidth rate requirement to play high definition video and N is greater than 1.

As an embodiment, the MIPI signal conversion module 113 at least includes: an encoding and compression sub-module and a high-speed data conversion sub-module. The high-speed data conversion sub-module is used for performing high-speed data conversion on the compressed standard MIPI signal and converting the standard MIPI signal into standard MIPI signals of N channels.

In this embodiment of the application, after receiving the video signal, the MIPI signal conversion module 113 may encode the video signal into a standard MIPI signal of one channel through the encoding and compressing sub-module, then compress the standard MIPI signal of the one channel, then transmit the compressed standard MIPI signal of the one channel to the high-speed data conversion sub-module, and convert the compressed standard MIPI signal of the one channel into a standard MIPI signal of N channels by the high-speed data conversion sub-module. The standard MIPI signals of one channel are compressed, so that the size of the standard MIPI signals needing high-speed data conversion can be reduced, and the transmission rate of the standard MIPI signals transmitted from the coding and compressing submodule to the high-speed data conversion submodule can be improved.

As an embodiment, the process of converting the HDMI signal into the standard MIPI signals of N channels in this embodiment actually refers to: and determining the standard MIPI signals needing to be transmitted by each channel when the N channels are used for transmitting the standard MIPI signals.

As an embodiment, in this embodiment, the standard MIPI signals of N channels need to be transmitted by using N different standard MIPI interfaces. The "channel" in the N-channel standard MIPI signal in this embodiment refers to a physical link used when transmitting a standard MIPI signal to the general platform 12, for example, a physical link from the standard MIPI interface 115 to the general platform 12.

As an example, in converting an HDMI signal to a standard MIPI signal of N channels, "N" is determined by the bandwidth rate requirement to play high definition video and the maximum transmission rate of the MIPI interface. In the embodiment of the application, the maximum transmission rate of the N channels is greater than the bandwidth rate requirement for playing high definition video.

Based on that each standard MIPI interface comprises 1 path of high-speed clock signals and 4 paths of data channels, the maximum transmission rate of each path of data channel is a set rate upper limit, and the set rate upper limit is 2Gbps or other preset rate values. For example, assuming that the set upper limit of the rate of the standard MIPI interface is 2Gbps, since each standard MIPI interface includes 4 data channels, the maximum transmission rate of each standard MIPI interface is 8 Gbps. Assuming that the high-definition video in the embodiment of the present application is a 4K60 frame high-definition video, and the bandwidth rate requirement based on the 4K60 frame high-definition video is 12Gbps, at least two (i.e., N is equal to 2) standard MIPI interfaces are required to simultaneously transmit MIPI signals (the maximum transmission rate of the two standard MIPI interfaces is 16 Gbps), so that the bandwidth rate requirement of the 4K60 frame high-definition video can be met.

And the audio processing module 114 converts the audio signal into a standard audio signal and transmits the standard audio signal to the general platform through a standard audio interface.

As an embodiment, the standard audio signal is a standard I2S (Inter-IC Sound, integrated circuit embedded audio bus) audio signal, and when the standard audio signal is a standard I2S audio signal, the standard audio interface 116 is a standard I2S audio signal interface.

The universal platform 12 is configured to receive, through N local MIPI signal interfaces, standard MIPI signals of N channels sent by the MIPI signal conversion module 113, receive, through a local audio interface, a standard audio signal sent by the audio processing module 114, and play a high-definition video based on the standard MIPI signals of the N channels and the standard audio signal.

As an embodiment, the general platform in this embodiment may be an Intel x86 platform (the Intel x86 platform refers to a hardware system built based on an x86 processor), or another general platform having the capability of processing an MIPI signal and a standard audio signal to obtain a video file to be played.

In this embodiment of the application, the general platform 12 may play the high definition video based on the standard MIPI signals of the N channels and the standard audio signals at least in the following two ways:

the first method is as follows: and respectively decoding and fusing the standard MIPI signals and the standard audio signals of the N channels to obtain a high-definition video file to be played, which can be stored and edited, so as to play a high-definition video based on the high-definition video file.

The second method comprises the following steps: the method comprises the steps of decoding standard MIPI signals of N channels to obtain video data files capable of being stored and edited, decoding standard audio signals to obtain audio data files capable of being stored and edited, fusing the video data files and the audio data files to obtain high-definition video files capable of being stored and edited and to be played, and playing high-definition videos based on the high-definition video files.

As an embodiment, as shown in fig. 1, the general platform 12 in this embodiment may at least include: local MIPI signal interface 121, local audio interface 122, MIPI CSI PHY submodule 123, and south bridge chip 124. Where the local MIPI signal interface 121 is used to interface with the standard MIPI interface 115 described above. It should be noted that, the number of local MIPI signal interfaces and local audio interfaces shown in fig. 1 for implementing the connection between the MIPI signal conversion module 113, the audio processing module 114 and the general platform is only an example, and the application is not limited thereto.

As an embodiment, after the general platform 12 receives the standard MIPI signals and the standard audio signals of the N channels through the local MIPI signal interface and the local audio interface, the general platform may send the standard MIPI signals of the N channels to the deployed MIPI CSI PHY sub-module 123, decode the standard MIPI signals of the N channels by the deployed MIPI CSI PHY sub-module 123, and merge the decoded standard MIPI signals of the N channels into the standard MIPI signals of 1 channel.

In this embodiment, the general-purpose platform may send the received standard audio signal to the deployed south bridge chip 314, and the deployed south bridge chip 314 decodes the standard audio signal.

After the decoded and fused standard MIPI signals of the N channels and the decoded standard audio signals are obtained, the storable and editable high-definition video file to be played can be obtained according to a preset implementation program for implementing the above mode 1 and/or mode 2.

It should be noted that the video data file capable of storing and editing may be in a video format supported by a common general-purpose platform, such as an MP4 format, an AVI format, and the like, and the audio data file capable of storing and editing may be in an audio format supported by a common general-purpose platform, such as an MP3 format, an MP2 format, and the like.

To this end, the system shown in fig. 1 is completed.

As can be seen from the system shown in fig. 1, the system provided in the embodiment of the present application can divide an externally input HDMI signal into a video signal and an audio signal, convert the video signal into a standard MIPI signal with N channels and send the standard MIPI signal to the general platform, convert the audio signal into a standard audio signal and send the standard audio signal to the general platform, so that the general platform plays a high-definition video based on the standard MIPI signal with N channels and the standard audio signal. According to the scheme, the transmission rate of the standard MIPI signals transmitted through the N channels is N times that of the standard MIPI signals transmitted through one channel, therefore, N is set according to the requirement of the bandwidth rate of the high-definition video, the standard MIPI signals and the standard audio signals of the N channels received by the universal platform can be guaranteed to be signals capable of playing the high-definition video, and the high-definition video HDMI video signals with different bandwidth rate requirements are collected.

As an embodiment, as shown in fig. 2, the system shown in fig. 1 may further include modules shown in fig. 2: a second HDMI receiving module 131, a logic processing module 132, and a PCI-e (Peripheral component interconnect express, high speed serial computer expansion bus standard) conversion module 133. As an embodiment, the second HDMI receiving module 131, the logic processing module 132, and the PCI-e converting module 133 may be located in the same chip, and constitute one electronic component 13.

For example, the electronic component 13 in the present embodiment may be implemented by an FPGA (Field Programmable Gate Array) or a CPLD (Complex Programmable logic device) chip.

As an embodiment, the electronic component 13 is similar to the electronic component 11 described above, and is located between the HDMI input module 10 and the universal platform 12, and the PCI-e conversion module 133 in the electronic component is connected to a standard PCI-e interface for transmitting a standard PCI-e signal. As shown in FIG. 3, the PCI-e translation module 133 may be coupled to the general purpose platform 12 via a standard PCI-e interface 134. It should be noted that the number of standard PCI-e interfaces shown in fig. 3 for implementing the connection between the PCI-e conversion module 133 and the general platform 12 is only an example, and the application is not limited thereto.

Based on the embodiment of the system shown in fig. 2, the system for acquiring a high-definition HDMI video signal applied to a universal platform provided by the present application is further detailed below:

the second HDMI receiving module 131 is configured to receive an HDMI signal transmitted by the HDMI input module from an external input, and transmit the HDMI signal to the logic processing module 132.

As an embodiment, the HDMI input module 10 in the system may transmit an HDMI signal to the second HDMI receiving module 131 through the connection between the HDMI input module 10 and the second HDMI receiving module 131 after receiving an externally input HDMI signal.

The logic processing module 132 is configured to perform logic preprocessing on the HDMI signal, and input the logically preprocessed HDMI signal to the PCI-e converting module 133.

As an embodiment, when receiving the HDMI signal transmitted by the second HDMI receiving module 131 and received from an external input, the logic processing module 132 decodes the received HDMI signal and performs logic preprocessing on the decoded HDMI signal. For one embodiment, the logic pre-processing performed by the logic processing module 132 includes at least: the decoded HDMI signal is processed into data that can be encoded as a standard PCI-e signal by an arithmetic operation such as and or.

The PCI-e converting module 133 is configured to convert the HDMI signal after the logic preprocessing into a standard PCI-e signal, and send the standard PCI-e signal to the universal platform 12 through a standard PCI-e interface.

In this embodiment, after the PCI-e conversion module 133 converts the logically preprocessed HDMI signal into a standard PCI-e signal, the standard PCI-e signal may be transmitted to the general platform 12 through the standard PCI-e interface 134. In this embodiment, the standard PCI-e signal may be a PCI-e signal with a higher transmission rate and a more stable transmission, such as a PCI-e x4 signal.

Further, based on the system shown in fig. 2, the general platform in this embodiment is further configured to: the standard PCI-e signal sent by the PCI-e conversion module 133 is received through the local PCI-e signal interface, and is decoded to obtain a storable and editable high-definition video file to be played, so as to play the high-definition video based on the high-definition video file.

As an embodiment, as shown in fig. 2, the general platform 12 in this embodiment further includes: a local PCI-e signal interface 126 and a PCI-e signal processing module 127. The local PCI-e signal interface 126 is used for connecting with the above-mentioned standard PCI-e interface 134, and the general platform 12 can receive the standard PCI-e signal sent by the PCI-e conversion module 133 through the local PCI-e signal interface 126.

After the universal platform 12 receives the standard PCI-e signal through the local PCI-e signal interface 126, the standard PCI-e signal is input to the PCI-e signal processing module 127, the PCI-e signal processing module 127 decodes the standard PCI-e signal, and the PCI-e signal processing module 127 converts the decoded standard PCI-e signal into a storable and editable high-definition video file to be played, so that the universal platform plays the high-definition video based on the high-definition video file.

This completes the description of the system shown in fig. 2.

The system shown in fig. 2 provided by the present embodiment is based on the fact that the transmission rate of the PCI-e signal is generally set to be higher (for example, the transmission rate ≈ 32Gbps of PCI-e 3.0 x 4). In this embodiment, a scheme of converting an HDMI signal into a standard PCI-e signal is adopted, and the requirement for acquiring an HDMI signal with a bandwidth rate less than 32Gbps, such as 4K60 frame high-definition video, based on the HDMI signal, by a general platform can also be supported.

The following describes embodiments of a method applied to a universal platform for collecting high definition HDMI video signals provided in the embodiments of the present application.

Example 1:

as shown in fig. 3, the flow shown in fig. 3 is applied to an electronic component in an electronic device, such as the electronic component 11 in the system, which is connected between the HDMI input module and the universal platform in the electronic device. In the embodiment of the application, the electronic component is connected with the universal platform through the standard MIPI interface and the standard audio interface. As an embodiment, the electronic device in the embodiment of the present application may be an electronic device constructed based on an Intel x86 platform, such as a computer, and the HDMI input module in the embodiment of the present application refers to an HDMI interface used by the electronic device to receive an externally input HDMI signal.

As shown in fig. 3, the process for acquiring a high definition HDMI video signal according to the embodiment of the present application may include the following steps:

step 301, receiving an HDMI signal from an external input transmitted by the HDMI input module, and dividing the HDMI signal into a video signal and an audio signal.

As an embodiment, when the HDMI signal is divided into the video signal and the audio signal, the HDMI signal needs to be decoded first, and then the decoded HDMI signal is divided into the video signal and the audio signal based on the different formats of the video data and the audio data in the HDMI signal.

And step 302, performing high-speed data conversion on the video signal, converting the video signal into standard MIPI signals of N channels, and sending the standard MIPI signals of the N channels to the universal platform through the N standard MIPI interfaces respectively.

In the embodiment of the application, a video signal may be encoded into a standard MIPI signal of one channel, then the standard MIPI signal of one channel is subjected to high-speed data conversion, and is converted into a standard MIPI signal of N channels, and then the standard MIPI signal of N channels is sent to a general platform through N standard MIPI interfaces on an electronic device, which are used for performing data transmission with the general platform.

As an example, after encoding the video signal into a one-channel standard MIPI signal, the one-channel standard MIPI signal may be further compressed to reduce the load of high-speed data conversion.

It should be noted that "N" in the standard MIPI signal with N channels is determined by the bandwidth rate requirement for playing high definition video and the maximum transmission rate of the MIPI interface. In the embodiment of the present application, the maximum transmission rate of the N channels is greater than the bandwidth rate requirement for playing high definition video.

Step 303, converting the audio signal into a standard audio signal and sending the standard audio signal to the general platform through a standard audio interface.

As an embodiment, after the decoded HDMI signal is separated into a video signal and an audio signal, the audio signal is encoded to convert the audio signal into a standard audio signal. Optionally, based on a module generally disposed in the general platform for processing the I2S audio signal, the present embodiment may select the I2S audio signal as the standard audio signal in step 303.

Further, in the electronic component in this embodiment, the standard MIPI signals of the N channels are respectively sent to the general platform through the N standard MIPI interfaces, and after the standard audio signal is sent to the general platform through the standard audio interface, the general platform can play the high-definition video according to the received standard MIPI signals and standard audio signals of the N channels.

In this embodiment, high-definition video data is transmitted by using the standard MIPI signals of the N channels to realize acquisition of the HDMI video signals of the high-definition video, and the maximum transmission rate of the standard MIPI signals of the N channels can be determined according to the requirement of the bandwidth rate for playing the high-definition video, so as to ensure that the maximum transmission rate of the standard MIPI signals of the N channels is greater than the requirement of the bandwidth rate for playing the high-definition video, and thus, the problem of playing the high-definition video played by the universal platform in this embodiment, such as pixel point missing, can be avoided.

The flow shown in fig. 3 is completed. In this embodiment, the execution sequence of the

steps

302 and 303 is not limited in this application, and the step 302 may be executed first, the step 303 may be executed first, or the

steps

302 and 303 may be executed simultaneously.

Optionally, based on that the transmission rate of the PCI-e signal is generally higher than the requirement for acquiring the bandwidth rate of the HDMI high-definition video signal, in this application, by another method embodiment (the method embodiment may be applied to the electronic component 13) different from the above, after receiving the HDMI signal transmitted by the HDMI input module and coming from the external input, the HDMI signal is decoded, then the decoded HDMI signal is subjected to logic preprocessing, and further the HDMI signal subjected to logic preprocessing is converted into a standard PCI-e signal and sent to the universal platform, so that the universal platform receives the standard PCI-e signal through the local PCI-e signal interface, performs decoding processing on the standard PCI-e signal to obtain a storable and editable high-definition video file to be played, and plays the high-definition video based on the high-definition video file.

Example 2:

another embodiment of a method applied to a universal platform for collecting high definition HDMI video signals provided in the embodiments of the present application is described below. Referring to fig. 4, the method flow shown in fig. 4 is applied to a deployed general platform in an electronic device, where the general platform is connected to an electronic component (e.g., electronic component 11) already disposed in the electronic device. The electronic component in this embodiment includes a standard MIPI interface for transmitting a standard MIPI signal and a standard audio interface for transmitting a standard audio signal, and is connected to the general platform through the standard MIPI interface and the standard audio interface.

In this embodiment of the present application, a general platform to which the process shown in fig. 4 is applied is deployed in the electronic device, for example, the general platform in this embodiment of the present application may be an Intel x86 platform, or another general platform having a capability of processing the MIPI signal and the standard audio signal to obtain a video file to be played.

As shown in fig. 4, the process of acquiring a high definition HDMI video signal applied to a general platform according to the embodiment of the present application may include the following steps:

step 401, respectively receiving the standard MIPI signals sent by the electronic component through N local MIPI signal interfaces, to obtain N-channel standard MIPI signals.

In the embodiment of the application, the standard MIPI signals of N channels can be received through the connection between the electronic component and the general platform and through N local MIPI signal interfaces connected with N standard MIPI interfaces in the electronic component.

Step 402, receiving a standard audio signal sent by an electronic component through a local audio interface.

In the embodiment of the application, the standard audio signal can be received through the connection between the electronic component and the general platform and through the local audio interface connected with the standard audio interface in the electronic component.

It should be noted that, the standard MIPI signals and the standard audio signals of the N channels are obtained by converting the received HDMI signals by the electronic component, and the specific conversion steps may refer to the embodiment shown in fig. 3.

And step 403, playing the high-definition video based on the standard MIPI signals and the standard audio signals of the N channels.

In this embodiment of the application, in step 403, the standard MIPI signals and the standard audio signals of the N channels may be decoded and merged, respectively, to obtain a high definition video file to be played, which may be stored and edited, so as to play a high definition video based on the high definition video file; or, decoding the standard MIPI signals of the N channels to obtain a video data file which can be stored and edited, decoding the standard audio signals to obtain an audio data file which can be stored and edited, fusing the video data file and the audio data file to obtain a high-definition video file which can be stored and edited and is to be played, so as to play a high-definition video based on the high-definition video file.

The flow shown in fig. 4 is completed.

As can be seen from the process shown in fig. 4, in the embodiment of the application, the universal platform receives the standard MIPI signals and the standard audio signals of the N channels transmitted by the electronic component, and then converts the standard MIPI signals and the standard audio signals of the N channels into the high-definition video file to be played, which can be stored and edited, so as to play the high-definition video based on the high-definition video file, thereby acquiring the high-definition HDMI video signals.

Optionally, if the universal platform in the embodiment of the present application is connected to another electronic component (for example, the electronic component 13 described above) different from the electronic component in the embodiment shown in fig. 4, the universal platform in the embodiment of the present application may also be configured to receive a standard PCI-e signal sent by the other electronic component through a local PCI-e signal interface, and perform decoding processing on the standard PCI-e signal to obtain a storable and editable high-definition video file to be played, so as to play the high-definition video based on the high-definition video file.

The detailed flow of acquiring the HDMI signal in the two embodiments of the method may refer to the description of the embodiment of the system, and is not described herein again. The above examples are merely for convenience of understanding, and the embodiments of the present application are not particularly limited.

The method provided by the embodiment of the application is described above. The following describes an electronic device provided in an embodiment of the present application. As shown in fig. 5, the electronic device includes at least: HDMI input module, electronic component and general platform. The electronic component in this embodiment is connected between the HDMI input module in the electronic device and the universal platform, and the electronic component at least includes: the electronic component is connected with the universal platform through the standard MIPI interface and the standard audio interface;

the first HDMI receiving module is used for receiving the HDMI signals transmitted by the HDMI input module and coming from external input, and transmitting the HDMI signals to the audio and video signal distribution module.

And the audio and video signal distribution module is used for dividing the HDMI signals into video signals and audio signals, inputting the video signals to the MIPI signal conversion module, and inputting the audio signals to the audio processing module.

The MIPI signal conversion module is used for performing high-speed data conversion on the video signals and converting the video signals into standard MIPI signals of N channels, wherein N is determined by the requirement of bandwidth rate for playing high-definition video, N is larger than 1, and the standard MIPI signals of the N channels are respectively sent to the general platform through N standard MIPI interfaces.

And the audio processing module is used for converting the audio signal into a standard audio signal and sending the standard audio signal to the universal platform through a standard audio interface.

And the universal platform is used for respectively receiving the standard MIPI signals of the N channels sent by the MIPI signal conversion module through N local MIPI signal interfaces, receiving the standard audio signals sent by the audio processing module through a local audio interface, and playing high-definition videos based on the standard MIPI signals of the N channels and the standard audio signals.

It should be noted that the electronic device in this embodiment of the present application may further include a second HDMI receiving module, a logic processing module, and a PCI-e conversion module, and specific functions of each module of the electronic device in this embodiment may refer to the description of the system embodiment described above, which is not described herein again.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A system for collecting high-definition HDMI video signals applied to a universal platform is characterized by at least comprising an HDMI input module, a first HDMI receiving module, an audio and video signal distribution module, an MIPI signal conversion module, an audio processing module and a universal platform, wherein the MIPI signal conversion module is connected with the universal platform through a standard MIPI interface, and the audio processing module is connected with the universal platform through a standard audio interface;

2. The system of claim 1, wherein the MIPI signal conversion module comprises at least:

the encoding and compressing submodule is used for encoding the video signal into a standard MIPI signal and compressing the standard MIPI signal;

and the high-speed data conversion submodule is used for performing high-speed data conversion on the compressed standard MIPI signal and converting the standard MIPI signal into the standard MIPI signals of the N channels.

3. The system of claim 1, wherein each standard MIPI interface comprises 1 high-speed clock signal and 4 data channels, and the maximum transmission rate of each data channel is a set upper rate limit, which is 2Gbps or other predetermined rate value.

4. The system of claim 1, wherein the standard audio signal is a standard integrated circuit built-in audio bus I2S audio signal.

5. The system of claim 1, wherein the generic platform playing high definition video based on the N-channel standard MIPI signals and the standard audio signals comprises:

respectively decoding and fusing standard MIPI signals of N channels and the standard audio signals to obtain a storable and editable high-definition video file to be played so as to play a high-definition video based on the high-definition video file;

or decoding standard MIPI signals of N channels to obtain a video data file capable of being stored and edited, decoding the standard audio signals to obtain an audio data file capable of being stored and edited, and fusing the video data file and the audio data file to obtain a high-definition video file to be played and capable of being stored and edited so as to play a high-definition video based on the high-definition video file.

6. The system of claim 1, further comprising: the system comprises a second HDMI receiving module, a logic processing module and a PCI-e conversion module, wherein the PCI-e conversion module is connected with the universal platform through a standard PCI-e interface;

the second HDMI receiving module is used for receiving an HDMI signal which is transmitted by the HDMI input module and is input from the outside and transmitting the HDMI signal to the logic processing module;

the logic processing module is used for performing logic preprocessing on the HDMI signal and inputting the logically preprocessed HDMI signal into the PCI-e conversion module;

and the PCI-e conversion module is used for converting the HDMI signals subjected to logic preprocessing into standard PCI-e signals and transmitting the standard PCI-e signals to the universal platform through a standard PCI-e interface.

7. The system of claim 6, wherein the generic platform is further configured to:

and receiving the standard PCI-e signal sent by the PCI-e conversion module through a local PCI-e signal interface, and decoding the standard PCI-e signal to obtain a storable and editable high-definition video file to be played so as to play a high-definition video based on the high-definition video file.

8. A method for collecting high definition HDMI video signals applied to a universal platform is applied to an electronic component in an electronic device, wherein the electronic component is connected between an HDMI input module in the electronic device and the universal platform, and the method comprises the following steps:

9. A method for collecting high definition HDMI video signals applied to a universal platform is characterized in that the method is applied to a deployed universal platform in an electronic device, the universal platform is connected with an electronic component arranged in the electronic device, and the electronic device at least comprises: HDMI input module, electronic component and general platform, this method includes:

respectively receiving standard MIPI signals sent by the electronic component through N local MIPI signal interfaces to obtain standard MIPI signals of N channels; the N is greater than 1;

10. An electronic device, characterized in that the electronic device comprises at least: HDMI input module, electronic component and general platform, electronic component connect in the HDMI input module in the electronic equipment with between the general platform, electronic component includes at least: the system comprises a first HDMI receiving module, an audio and video signal distribution module, an MIPI signal conversion module, an audio processing module, a standard MIPI interface and a standard audio interface, wherein the electronic component is connected with the universal platform through the standard MIPI interface and the standard audio interface;

the first HDMI receiving module is used for receiving HDMI signals which are transmitted by the HDMI input module and are input from the outside and transmitting the HDMI signals to the audio and video signal distribution module;