CN112616033A - Multichannel video source pre-monitoring method and system and video processing equipment - Google Patents
Multichannel video source pre-monitoring method and system and video processing equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/0806—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the signals being two or more video signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The embodiment of the invention discloses a multi-channel video source pre-monitoring method, a video processing device and a multi-channel video source pre-monitoring system. The method for pre-monitoring the multi-channel video source comprises the following steps: acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored; generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data; generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source. The embodiment of the invention can solve the problem of low pre-monitoring image precision caused by splicing a plurality of image frame data corresponding to a plurality of video sources to obtain the pre-monitoring image when the multi-video source is pre-monitored in the prior art.
Description
Technical Field
The invention relates to the technical field of display control, in particular to a multipath video source pre-monitoring method, video processing equipment and a multipath video source pre-monitoring system.
Background
In order to facilitate a user to observe specific situations of video sources, it is generally required to pre-monitor input multiple video sources or processed multiple video sources to be output in a video processing device, such as a video processing device or an LED display screen controller (e.g., a sending card), so that the user can perform related operations on the video processing device according to a pre-monitored display result.
At present, in order to monitor multiple video sources simultaneously, the adopted technical scheme is as follows: and splicing a plurality of image frame data corresponding to each of the plurality of video sources into a plurality of grids (for example, 8 grids) to generate a pre-monitoring image. However, the technical scheme of pre-monitoring adopts the splicing process, so that the display effect of the pre-monitored image is reduced (namely, the precision is low), and the user experience is not good.
Moreover, in an actual application scenario, interaction between an operator and a video processing device is more and more complex, video sources to be monitored are more and more, and a requirement on a display effect, i.e., accuracy, of a monitored video image is higher and more, so that how to improve the display effect of a pre-monitoring image without increasing system cost is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
Therefore, to overcome the defects and shortcomings in the prior art, embodiments of the present invention provide a multi-channel video source pre-monitoring method, a video processing device, and a multi-channel video source pre-monitoring system.
On one hand, the method for pre-monitoring the multi-channel video source provided by the embodiment of the invention comprises the following steps: acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored; generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data; generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source.
In the above scheme, the multi-channel video source pre-monitoring method pre-monitors the multi-channel video source by generating corresponding identification information representing data sources of a plurality of image frame data respectively corresponding to the multi-channel video source, generating image frame data packets according to the image frame data and the identification information, and outputting the image frame data packets through the same image output interface according to a first preset sequence, so as to avoid the problem of low precision of an output pre-monitored picture caused by splicing the plurality of image frame data respectively corresponding to the multi-channel video source in the prior art, and directly outputting the plurality of image frame data packets including the corresponding image frame data and the identification information through the same image output interface according to the first preset sequence, so that the precision and the display effect of the pre-monitored picture are improved, and the user experience is improved.
In one embodiment of the present invention, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; the generating the plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information specifically includes: compressing the first image frame data to obtain first compressed image frame data; and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet.
In one embodiment of the present invention, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; the generating the plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information specifically includes: adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data; and performing compression processing and packaging processing on the first image data to obtain a first image frame data packet.
In an embodiment of the present invention, the obtaining the plurality of image frame data respectively corresponding to the plurality of video sources to be pre-monitored specifically includes: and acquiring the plurality of image frame data respectively corresponding to the plurality of video sources according to the first preset sequence. In this scheme, the obtaining sequence of the plurality of image frame data is the same as the output sequence of the plurality of image frame data packets, so that the video processing device executing the multi-channel video source pre-monitoring method can directly process and output the plurality of image frame data of the obtained multi-channel video source without caching the plurality of image frame data of the multi-channel video source, thereby reducing the caching cost and improving the processing efficiency.
On the other hand, an embodiment of the present invention provides a video processing apparatus, including an image data processing module and an image output interface electrically connected to the image data processing module, where the image data processing module is configured to: acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored; generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data; generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source.
In the above scheme, the video processing device generates corresponding identification information representing data sources of a plurality of video sources by aiming at the plurality of image frame data respectively corresponding to the plurality of video sources, generates an image frame data packet according to the image frame data and the identification information, and outputs the image frame data packet through the same image output interface according to a first preset sequence to pre-monitor the plurality of video sources, so that the problem of low pre-monitoring picture precision caused by splicing the plurality of image frame data respectively corresponding to the plurality of video sources in the prior art is avoided, and the plurality of image frame data packets including the corresponding image frame data and the identification information are directly and sequentially output through the same image output interface according to the first preset sequence, so that the precision and the display effect of the pre-monitoring picture are improved, and the user experience is improved.
In one embodiment of the invention, the image data processing module comprises a programmable logic device and an embedded processor electrically connected between the programmable logic device and the image output interface; the programmable logic device is specifically configured to: acquiring first image frame data of a first video source in the multi-path video sources; generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data; and the first image frame data and the first identification information are packaged to obtain a second image frame data packet, and the second image frame data packet is sent to the embedded processor; the embedded processor is configured to analyze the second image frame data packet to obtain the first image frame data and the first identification information, perform compression processing on the first image frame data to obtain first compressed image frame data, perform packing processing on the first compressed image frame data and the first identification information to obtain the first image frame data packet, and output the first image frame data packet via the image output interface.
In one embodiment of the invention, the image data processing module comprises a programmable logic device and an embedded processor electrically connected between the programmable logic device and the image output interface; the programmable logic device is specifically configured to: acquiring first image frame data of a first video source in the multi-path video sources; generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data; adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data, and sending the first image data to the embedded processor; the embedded processor is used for generating the first image frame data packet according to the first image data and outputting the first image frame data packet through the image output interface.
In an embodiment of the present invention, the embedded processor is specifically configured to perform compression processing and packetizing processing on the first image data to obtain the first image frame data packet, and output the first image frame data packet via the image output interface.
In an embodiment of the present invention, the embedded processor is specifically configured to: analyzing the first image data to obtain first image frame data and the first identification information, and compressing the first image frame data to obtain first compressed image frame data; and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet, and outputting the first image frame data packet through the image output interface.
In another aspect, a multi-channel video source pre-monitoring system provided in an embodiment of the present invention includes: the video processing apparatus as in any one of the embodiments of the above further aspect; the upper computer is electrically connected with the image output interface of the video processing equipment; the upper computer is used for: receiving the plurality of image frame data packets output by the video processing device according to the first preset sequence; analyzing the image frame data packets to obtain the identification information and the image frame data respectively corresponding to the identification information; and displaying the plurality of image frame data at a plurality of display positions respectively corresponding to the plurality of identification information according to the plurality of identification information.
One or more of the above technical solutions may have the following advantages or beneficial effects: according to the embodiment of the invention, the identification information which represents the data source of the multi-channel video source is generated aiming at the plurality of image frame data respectively corresponding to the multi-channel video source, the image frame data packet is generated according to the image frame data and the identification information and is output through the same image output interface according to the first preset sequence, so that the multi-channel video source is pre-monitored, the problem of low pre-monitoring picture precision caused by splicing the plurality of image frame data respectively corresponding to the multi-channel video source in the prior art is solved, and the plurality of image frame data packets comprising the corresponding image frame data and the identification information are directly and sequentially output through the same image output interface according to the first preset sequence, so that the precision and the display effect of the pre-monitored picture are improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for pre-monitoring multiple video sources according to a first embodiment of the present invention.
Fig. 2 is a detailed flowchart of step S12 in fig. 1.
Fig. 3 is another detailed flowchart of step S12 in fig. 1.
Fig. 4 is a schematic structural diagram of a multi-channel video source pre-monitoring system applying the multi-channel video source pre-monitoring method according to the first embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a process of polling output image frame data according to a first embodiment of the present invention.
Fig. 6 is a schematic diagram illustrating an effect of the first image data obtained in the first embodiment of the present invention.
Fig. 7 is a block diagram of a multi-channel video source pre-monitoring apparatus according to a second embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a multi-channel video source pre-monitoring system according to a third embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a computer-readable storage medium according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a multi-channel video source pre-monitoring method according to a first embodiment of the present invention is shown. The method for pre-monitoring the multi-channel video source comprises the following steps:
s10, acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored;
s11, generating a plurality of identification information representing data sources of the plurality of image frame data according to the data source information of the plurality of image frame data;
s12, generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and
and S13, outputting the image frame data packets via the same image output interface according to a first preset sequence to pre-monitor the multi-channel video source.
In a specific implementation manner of this embodiment, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; as shown in fig. 2, the generating the image frame data packets according to the image frame data and the identification information (S12) specifically includes: s121, compressing the first image frame data to obtain first compressed image frame data; and S122, performing packaging processing on the first compressed image frame data and the first identification information to obtain a first image frame data packet.
In a specific implementation manner of this embodiment, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; as shown in fig. 3, the generating the image frame data packets according to the image frame data and the identification information (S12) specifically includes: s123, adding the first identification information to the extension lines and/or the extension columns of the first image frame data to obtain first image data; and S124, performing compression processing and packaging processing on the first image data to obtain a first image frame data packet.
In a specific implementation manner of this embodiment, the acquiring the plurality of image frame data corresponding to the plurality of video sources to be pre-monitored specifically includes: and acquiring the plurality of image frame data respectively corresponding to the plurality of video sources according to the first preset sequence.
For the convenience of understanding the present invention, the multi-channel video source pre-monitoring method of the present embodiment will be described in detail with reference to fig. 4 to 6.
Fig. 4 shows a multi-channel video source pre-monitoring system, which includes a video processing device and an upper computer electrically connected to the video processing device. The video processing device is, for example, a video processing device or an LED display screen controller (e.g., a transmitting card), and the upper computer is, for example, a PC, which is not limited in this embodiment of the present invention.
In light of the above, the video processing apparatus includes a plurality of video input interfaces, a plurality of video output interfaces, a programmable logic device, an embedded processor, and an image output interface. Such as the first video input interface, the second video input interface, and the third video input interface shown in fig. 4. Such as the first video output interface, the second video output interface, and the third video output interface shown in fig. 4. The video input interfaces and the video output interfaces are respectively electrically connected with the programmable logic device, and the embedded processor is electrically connected between the programmable logic device and the image output interface. The upper computer is electrically connected with the video processing equipment through the image output interface.
For example, the Programmable logic device may be, for example, an FPGA (Field-Programmable Gate Array) for processing video sources input via a plurality of video input interfaces; the embedded processor may be, for example, an arm (advanced RISC machines) processor or the like, which is used for sending relevant control instructions for video processing and interacting, communicating with other devices; the image output interface may be, for example, an ethernet interface; the type of the video input interface and the video output interface may be, for example, an HDMI interface, a DVI interface, etc., and the embodiment of the present invention is not limited thereto. The programmable logic device and the embedded Processor are electrically connected through a video Interface, such as a Mipi CSI2 Interface (Mobile Industry Processor Interface) or an LDVS Interface (Low-Voltage Differential Signaling).
In addition, it should be noted that although fig. 4 only shows three video input interfaces and three video output interfaces, the embodiments of the present invention are not limited thereto, and the video processing apparatus may further include two or more video input interfaces and/or video output interfaces.
The method for pre-monitoring the multi-channel video source is executed by the video processing equipment shown in fig. 4, and the specific execution steps comprise: acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored; generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data; generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source. It should be noted that, the first preset sequence is set by an internal program of the programmable logic device, and for example, the first preset sequence is to sequentially output image frame data acquired from the first video input interface, the second video input interface, and the third video input interface, or sequentially output image frame data acquired from the third video input interface, the second video input interface, and the first video input interface, which is not specifically limited in the embodiment of the present invention.
As mentioned above, the process of outputting a plurality of image frame data packets may be, for example, a polling output process, for example, as shown in fig. 5, sequentially outputting, in order from the video source 1 to the video source N, for example, in the form of an image frame data packet, image frame data corresponding to the video source 1, image frame data corresponding to the video source 2, and image frame data corresponding to the video source 3, and continuing to receive the image frame data of the video source 1 after receiving the image frame data of the video source N.
As mentioned above, the process of acquiring the plurality of image frame data corresponding to the to-be-pre-monitored multi-channel video source respectively is preferably to acquire the image frame data according to the first preset sequence, and thus, the acquiring sequence of the plurality of image frame data is the same as the output sequence of the plurality of image frame data packets, and thus, the video processing device executing the multi-channel video source pre-monitoring method may not buffer the acquired plurality of image frame data of the multi-channel video source, but may directly process and output the image frame data, so that the buffering cost may be reduced, and the processing efficiency may be improved.
It should be noted that, the image frame data obtained here is a complete image frame data, and when multiple video sources input by multiple video input interfaces are obtained in real time, due to the problems of asynchronous time of video source access and the like, after the video processing equipment receives the complete image frame data of the previous video source, when image frame data of a subsequent video source is received, the current image frame data of the subsequent video source is already partially transmitted, the video processing device will not begin receiving the next full image frame data until it arrives, as shown in figure 5, after receiving the 1 st frame of video source 2, the video processing device starts receiving video source 3, while at this point video source 3 frame 2 has been partially transmitted, the video source processing device waits for the arrival of video source 3 frame 3 to receive video source 3 frame 3. Based on this, as shown in fig. 5, the image frame data received by the video processing device are sequentially a 1 st frame of the video source 1, a 1 st frame of the video source 2, a 3 rd frame of the video source 3. Because the output sequence of the image frame data packets is the same as the acquisition sequence of the image frame data, the image frame data packets finally output by the video processing device are the image frame data packets respectively corresponding to the 1 st frame of the video source 1, the 1 st frame of the video source 2 and the 3 rd frame of the video source 3.
Specifically, how to judge whether the image frame data is complete or not can be judged according to the level variation of the image field synchronization signal, and the judging process is well known by those skilled in the art and is not described herein again.
Of course, the sequence of acquiring the plurality of image frame data may also be different from the output sequence of the image frame data packets, that is, the first preset sequence, and the embodiment of the present invention is not intended to specifically limit the manner and the sequence of acquiring the image frame data of each video source.
It should be noted that the source of the multi-channel video source can be from a multi-channel video input interface, that is, from a video source input device electrically connected to the multi-channel video input interface, or from a multi-channel video output interface, so that the video processing device can implement both video input pre-monitoring and video output pre-monitoring. In addition, the format of the identification information may be in the form of binary data of, for example, 8 bytes, and the specific form of the identification information is not particularly limited in the embodiment of the present invention, as long as it can uniquely characterize its data source, for example, from the first video input interface or the second video input interface.
In the above description, in a case that a protocol corresponding to a video interface between the programmable logic device and the embedded processor supports direct transmission of the identification information, for example, when the video interface is an MIPI-CSI2 interface, the programmable logic device obtains first image frame data of a first video source in the multiple video sources; and generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data, packaging the first image frame data and the first identification information to obtain a second image frame data packet, and sending the second image frame data packet to the embedded processor. The embedded processor analyzes and analyzes the second image frame data packet to obtain the first image frame data and the first identification information, compresses the first image frame data to obtain first compressed image frame data, packs the first compressed image frame data and the first identification information to obtain the first image frame data packet, and outputs the first image frame data packet through the image output interface. For example, the embedded processor compresses the received first image frame data into a file in, for example, MJPEG format, and then transmits the file through an HTTP protocol, and at the same time places the first identification information corresponding to the first image frame data at a header of the HTTP transmission to form a first image frame data packet, and then transmits the first image frame data packet to the upper computer through an image output interface, which is not limited in the embodiment of the present invention.
In view of the above, under the condition that a protocol corresponding to a video interface between a programmable logic device and the embedded processor does not support direct transmission of the identification information, for example, when the video interface is an LVDS interface, the programmable logic device obtains first image frame data of a first video source in the multiple video sources; generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data; and adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data, and sending the first image data to the embedded processor. The embedded processor generates the first image frame data packet according to the first image data and outputs the first image frame data packet through the image output interface. Specifically, the embedded processor performs compression processing and packing processing on the first image data to obtain a first image frame data packet, and outputs the first image frame data packet through the image output interface; or the embedded processor analyzes the first image data to obtain the first image frame data and the first identification information, and compresses the first image frame data to obtain first compressed image frame data; and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet, and outputting the first image frame data packet through the image output interface.
As mentioned above, the first image data may be, for example, as shown in fig. 6, the resolution of the first image frame data 10 is, for example, 1920 × 1080, that is, the first image frame data 10 has 1080 rows and 1920 columns, the extension row and/or the extension column is first added to the first image frame data 10, only two extension rows (row 1081 and row 1082) are added in fig. 6 as an example, and then the first identification information is supplemented to the pixels of the extension row and/or the extension column. Specifically, the manner of supplementing the first identification information to the pixels of the extended row and/or the extended column may be performed according to actual requirements, for example, the video processing device and the upper computer make a convention rule in advance (for example, which pixel is filled with which data), and then the video processing device, specifically, the programmable logic device, performs supplementing of the supplemental data according to the convention rule, which is only an example here, and the embodiment of the present invention is not limited thereto. Of course, according to actual requirements, only the extension row or only the extension column may be added, or both the extension row and the extension column may be added, and the number of the extension row and the extension column may also be determined according to actual requirements, which is not limited to this, in the embodiment of the present invention.
After the video processing device outputs the image frame data packets, the upper computer receives the image frame data packets output by the video processing device according to the first preset sequence; analyzing the image frame data packets to obtain the identification information and the image frame data respectively corresponding to the identification information; and displaying the plurality of image frame data at a plurality of display positions respectively corresponding to the plurality of identification information according to the plurality of identification information so as to pre-monitor the multi-channel video source. For example, the plurality of display positions correspond to a plurality of display areas, for example, a pre-monitoring window of the upper computer software.
It should be noted that, the plurality of image frame data packets corresponding to the plurality of video sources are all output to the embedded processor through the same image output interface, and therefore, since all the image frame data packets are output through the same image output interface, it is achieved that a single image output interface is used for simultaneously transmitting the plurality of video sources, and thus, a plurality of image output interfaces are not required to be additionally designed for transmitting the plurality of video sources, thereby reducing the system cost.
In summary, the multi-channel video source pre-monitoring method pre-monitors the multi-channel video source by generating corresponding identification information representing data sources of a plurality of image frame data respectively corresponding to the multi-channel video source, generating image frame data packets according to the image frame data and the identification information, and outputting the image frame data packets through the same image output interface according to a first preset sequence, so as to avoid the problem of low pre-monitoring picture precision caused by splicing the plurality of image frame data respectively corresponding to the multi-channel video source in the prior art, and by directly outputting the plurality of image frame data packets including the corresponding image frame data and the identification information through the same image output interface in sequence according to the first preset sequence, thereby improving the precision and the display effect of the pre-monitoring picture, and improving the user experience.
[ second embodiment ]
Referring to fig. 7, a second embodiment of the present invention provides a multi-channel video source pre-monitoring apparatus 100. The multi-channel video source pre-monitoring device 100 comprises an acquisition module 101, a first generation module 102, a second generation module 103 and an output module 104.
Specifically, the obtaining module 101 obtains a plurality of image frame data corresponding to a plurality of video sources to be pre-monitored.
The first generating module 102 is configured to generate, according to the data source information of the plurality of image frame data, a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly.
The second generating module 103 is configured to generate a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information.
The output module 104 is configured to output the plurality of image frame data packets through the same image output interface according to a first preset order, so as to pre-monitor the multi-channel video source.
In a specific implementation manner of this embodiment, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; the second generating module 103 is specifically configured to: compressing the first image frame data to obtain first compressed image frame data; and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet.
In a specific implementation manner of this embodiment, the plurality of image frame data includes first image frame data, the plurality of identification information includes first identification information corresponding to the first image frame data, and the plurality of image frame data packets includes a first image frame data packet corresponding to the first image frame data; the second generating module 103 is specifically configured to: adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data; and performing compression processing and packaging processing on the first image data to obtain a first image frame data packet.
In a specific implementation manner of this embodiment, the obtaining module 101 is specifically configured to obtain the plurality of image frame data respectively corresponding to the plurality of video sources according to the first preset order.
The detailed operation and technical effects between the modules in the multi-channel video source pre-monitoring apparatus 100 in this embodiment are described in the foregoing first embodiment.
[ third embodiment ]
Referring to fig. 8, a multi-channel video source pre-monitoring system 200 is provided according to a third embodiment of the present invention. The multi-channel video source pre-monitoring system 200 includes, for example, a memory 210 and a processor 220 coupled to the memory 210. The memory 210 may be, for example, a non-volatile memory, on which is stored a computer program 211. The processor 220 executes the computer program 211 to perform the multi-channel video source pre-monitoring method provided by the first embodiment.
[ fourth example ] A
As shown in FIG. 9, a fourth embodiment of the invention provides a computer-readable storage medium 400 having stored thereon computer-executable instructions 410. The computer-executable instructions 410 are for performing the multi-video source pre-monitoring method as described above in the first embodiment. The computer-readable storage medium 400 is, for example, a non-volatile memory, such as including: magnetic media (e.g., hard disks, floppy disks, and magnetic tape), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices specially constructed for storing and executing computer-executable instructions (e.g., Read Only Memories (ROMs), Random Access Memories (RAMs), flash memories, etc.). The computer-readable storage medium 400 may execute the computer-executable instructions 410 by one or more processors or processing devices.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for pre-monitoring a multi-channel video source, comprising:
acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored;
generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data;
generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and
and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source.
2. The multi-channel video source pre-monitoring method of claim 1, wherein the plurality of image frame data comprises first image frame data, the plurality of identification information comprises first identification information corresponding to the first image frame data, and the plurality of image frame data packets comprises first image frame data packets corresponding to the first image frame data;
the generating the plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information specifically includes:
compressing the first image frame data to obtain first compressed image frame data;
and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet.
3. The multi-channel video source pre-monitoring method of claim 1, wherein the plurality of image frame data comprises first image frame data, the plurality of identification information comprises first identification information corresponding to the first image frame data, and the plurality of image frame data packets comprises first image frame data packets corresponding to the first image frame data;
the generating the plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information specifically includes:
adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data;
and performing compression processing and packaging processing on the first image data to obtain a first image frame data packet.
4. The method according to claim 1, wherein the obtaining the plurality of image frame data respectively corresponding to the plurality of video sources to be pre-monitored specifically comprises:
and acquiring the plurality of image frame data respectively corresponding to the plurality of video sources according to the first preset sequence.
5. A video processing apparatus comprising an image data processing module and an image output interface electrically connected to the image data processing module, the image data processing module being configured to:
acquiring a plurality of image frame data respectively corresponding to a plurality of paths of video sources to be pre-monitored;
generating a plurality of identification information representing the data sources of the plurality of image frame data respectively and correspondingly according to the data source information of the plurality of image frame data;
generating a plurality of image frame data packets according to the plurality of image frame data and the plurality of identification information; and
and outputting the plurality of image frame data packets through the same image output interface according to a first preset sequence so as to pre-monitor the multi-channel video source.
6. The video processing device of claim 5, wherein the image data processing module comprises a programmable logic device and an embedded processor electrically connected between the programmable logic device and the image output interface;
the programmable logic device is specifically configured to:
acquiring first image frame data of a first video source in the multi-path video sources;
generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data; and
packaging the first image frame data and the first identification information to obtain a second image frame data packet and sending the second image frame data packet to the embedded processor;
the embedded processor is to:
analyzing the second image frame data packet to obtain the first image frame data and the first identification information;
compressing the first image frame data to obtain first compressed image frame data; and
and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet, and outputting the first image frame data packet through the image output interface.
7. The video processing device of claim 5, wherein the image data processing module comprises a programmable logic device and an embedded processor electrically connected between the programmable logic device and the image output interface;
the programmable logic device is specifically configured to:
acquiring first image frame data of a first video source in the multi-path video sources;
generating first identification information representing the data source of the first image frame data according to the data source information of the first image frame data;
adding the first identification information to an extension line and/or an extension column of the first image frame data to obtain first image data, and sending the first image data to the embedded processor;
the embedded processor is to: and generating the first image frame data packet according to the first image data and outputting the first image frame data packet through the image output interface.
8. The video processing device according to claim 7, wherein the embedded processor is specifically configured to perform compression processing and packetization processing on the first image data to obtain the first image frame data packet and output the first image frame data packet via the image output interface.
9. The video processing device of claim 7, wherein the embedded processor is specifically configured to:
analyzing the first image data to obtain first image frame data and the first identification information, and compressing the first image frame data to obtain first compressed image frame data;
and packaging the first compressed image frame data and the first identification information to obtain a first image frame data packet, and outputting the first image frame data packet through the image output interface.
10. A multi-channel video source pre-monitoring system, comprising:
the video processing device of any of claims 5 to 9; and
the upper computer is electrically connected with the image output interface of the video processing equipment;
the upper computer is used for:
receiving the plurality of image frame data packets output by the video processing device according to the first preset sequence;
analyzing the image frame data packets to obtain the identification information and the image frame data respectively corresponding to the identification information;
and displaying the plurality of image frame data at a plurality of display positions respectively corresponding to the plurality of identification information according to the plurality of identification information.
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