CN115834801A - Response type video transmission method based on SRIO - Google Patents
Response type video transmission method based on SRIO Download PDFInfo
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Abstract
The invention discloses an SRIO-based answering type video transmission method, which comprises the following steps: numbering each of a plurality of video sources; distributing serial numbers ID for SRIO nodes in the video acquisition module and the video processing module; the SRIO switching module configures a switching routing table based on the SRIO node number ID and the port; sending a request to a video acquisition module by adopting an SRIO doorbell transaction packet mode for each video processing submodule, wherein the request is used for requesting video data of a video source; and the video acquisition module analyzes the doorbell transaction packet, transmits the required video data to the corresponding video processing sub-module in an SRIO data packet writing mode, and realizes the response to the corresponding video processing sub-module. According to the method, different video processing sub-modules can simultaneously send different requests to the video acquisition module according to the requirements of the system under the condition of the limited bandwidth of the SRIO, and the video acquisition module can timely and completely transmit different video data to the plurality of video processing sub-modules for real-time processing.
Description
Technical Field
The invention relates to the field of video transmission, in particular to an SRIO-based answering type video transmission method.
Background
SRIO is a new generation high-speed interconnection technology which is developed and proposed for an embedded system, has high reliability and high performance and is based on packet switching, is a serial RapidIO interface for connecting and applying a serial backboard, a DSP and a related serial data plane, and can meet the high-speed transmission requirement of high-capacity data. The transmission mode of SRIO may be an ID matching mode or a broadcast mode. Video data is gathered to the video acquisition module, can transmit a video simultaneously through SRIO broadcast mode and handle for a plurality of video processing modules, but the video source is more, and different video processing module demands are different, just can't adopt the broadcast mode, how video acquisition module utilizes SRIO to learn video processing module's video demand, when the transmission video, which way of video is transmitted, is the key that the system realizes multiple video real-time processing.
Disclosure of Invention
In view of the above, the invention provides a response type video transmission method based on SRIO, which can solve the technical problem that the real-time processing of the system video cannot be satisfied due to inconsistency between video data required by different video processing sub-modules in a multi-video source system and video data sent by a video acquisition module, and can also solve the technical problem that the video transmission is incomplete and not timely due to insufficient SRIO video bandwidth transmission in the multi-video source multi-video processing sub-module system.
In order to solve the above-mentioned technical problems, the present invention has been accomplished as described above.
The invention provides an SRIO-based answering type video transmission method, which is realized based on the framework shown in FIG. 2 and comprises the following steps:
step S1: numbering each of a plurality of video sources;
step S2: distributing serial numbers ID for SRIO nodes in the video acquisition module and the video processing module; the video acquisition module comprises a plurality of acquisition circuits and an SRIO node; each acquisition circuit corresponds to one video source, acquires corresponding video data and selectively transmits the video data to an SRIO node in the video acquisition module according to a request, wherein the SRIO node is used for carrying out video data communication with the SRIO switching module; the SRIO switching module is used for data interaction among a plurality of SRIO nodes, and comprises a plurality of hardware port ports, wherein one port of the hardware port ports is connected with the SRIO node in the video acquisition module, and each port of the rest hardware port ports in the hardware port ports is connected with one SRIO node of the video processing module; the video processing module is divided into a plurality of video processing sub-modules according to functions, and each video processing sub-module comprises an SRIO node;
and step S3: the SRIO switching module configures a switching routing table based on the SRIO node number ID and the port; the switching routing table is used for representing the corresponding relation between the SRIO switching module hardware port and a plurality of SRIO node data interaction source addresses and destination addresses;
and step S4: for each video processing submodule, the following operations are performed:
the video processing sub-module sends a request to a port corresponding to the video processing sub-module in the SRIO switching module in a way of an SRIO doorbell transaction packet, and the request is used for requesting video data of the video source; the doorbell transaction packet comprises the serial number of a video source needing video processing currently, the serial number of an SRIO node in the video processing sub-module and the serial number of an SRIO node in the video acquisition module, wherein the SRIO node in the video processing sub-module is used as a source SRIO node, and the SRIO node in the video acquisition module is used as a destination SRIO node;
the SRIO switching module receives the doorbell transaction packet, analyzes a node number corresponding to a target SRIO node, and sends the doorbell transaction packet to a video acquisition module corresponding to the doorbell transaction packet according to the switching routing table;
and the corresponding video acquisition module receives the doorbell transaction packet, analyzes the serial number of the video source currently required to be subjected to video processing by the video processing submodule and the serial number of the source SRIO node, and transmits the video currently required to be subjected to video processing by the video processing submodule to the video processing submodule corresponding to the video source through a port in a mode of writing a data packet by adopting SRIO, so that the corresponding video processing submodule is responded.
Further, the video source generates videos with various resolutions and frame rates including white light, thermal images and the like.
Furthermore, an acquisition circuit in the video acquisition module is used for receiving video data in a video source module, and an SRIO node in the video acquisition module is used for converting a video into an SRIO packet format.
Furthermore, the SRIO switching module includes a plurality of port ports, one of the plurality of hardware port ports is connected to the SRIO node in the video capture module, and each of the other hardware port ports in the plurality of hardware port ports is connected to one SRIO node of the video processing module, that is, each of the other hardware port ports is connected to one SRIO node in the video processing module.
Further, the video processing module comprises a plurality of video processing sub-modules, and each video processing sub-module is independent.
Further, each video processing sub-module is capable of sending requests simultaneously.
Has the advantages that:
(1) The invention enables the video acquisition module to accurately acquire the requirements of the plurality of video processing sub-modules in real time and timely transmit the required video data to the plurality of video processing sub-modules for processing.
(2) According to the invention, different video processing sub-modules can simultaneously send different requests to the video acquisition module according to the requirements of the system, so that the real-time processing of various video source data is realized.
(3) The invention ensures that the multi-video source multi-video processing submodule system can also ensure that the multi-video processing submodule can acquire complete video data for processing in real time through the limited bandwidth of the SRIO.
Drawings
Fig. 1 is a schematic flow chart of an SRIO-based responsive video transmission method according to the present invention;
fig. 2 is a schematic diagram of an SRIO-based responsive video transmission method architecture provided in the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1, the present invention provides an SRIO-based responsive video transmission method, which is implemented based on the architecture shown in fig. 2, and includes the following steps:
step S1: numbering each of a plurality of video sources;
step S2: distributing serial numbers ID for SRIO nodes in the video acquisition module and the video processing module; the video acquisition module comprises a plurality of acquisition circuits and an SRIO node; each acquisition circuit corresponds to one video source, acquires corresponding video data and selectively transmits the video data to an SRIO node in the video acquisition module according to a request, wherein the SRIO node is used for carrying out video data communication with the SRIO switching module; the SRIO switching module is used for data interaction among a plurality of SRIO nodes, and comprises a plurality of hardware port ports, wherein one port of the hardware port ports is connected with the SRIO node in the video acquisition module, and each port of the rest hardware port ports in the hardware port ports is connected with one SRIO node of the video processing module; the video processing module is divided into a plurality of video processing sub-modules according to functions, and each video processing sub-module comprises an SRIO node;
and step S3: the SRIO switching module configures a switching routing table based on the SRIO node number ID and the port; the switching routing table is used for representing the corresponding relation between the SRIO switching module hardware port and a plurality of SRIO node data interaction source addresses and destination addresses;
and step S4: for each video processing submodule, the following operations are performed:
the video processing sub-module sends a request to a port corresponding to the video processing sub-module in the SRIO switching module in a way of an SRIO doorbell transaction packet, and the request is used for requesting video data of the video source; the doorbell transaction packet comprises the serial number of a video source needing video processing currently, the serial number of an SRIO node in the video processing sub-module and the serial number of an SRIO node in the video acquisition module, wherein the SRIO node in the video processing sub-module is used as a source SRIO node, and the SRIO node in the video acquisition module is used as a destination SRIO node;
the SRIO switching module receives the doorbell transaction packet, analyzes a node number corresponding to a target SRIO node, and sends the doorbell transaction packet to a video acquisition module corresponding to the doorbell transaction packet according to the switching routing table;
and the corresponding video acquisition module receives the doorbell transaction packet, analyzes the serial number of the video source currently required to be subjected to video processing by the video processing submodule and the serial number of the source SRIO node, and transmits the video currently required to be subjected to video processing by the video processing submodule to the video processing submodule corresponding to the video source through a port in a mode of writing a data packet by adopting SRIO, so that the corresponding video processing submodule is responded.
Further, the video source generates videos with various resolutions and frame rates including white light, thermal images and the like.
Furthermore, an acquisition circuit in the video acquisition module is used for receiving video data in a video source module, and an SRIO node in the video acquisition module is used for converting a video into an SRIO packet format.
Furthermore, the SRIO switching module includes a plurality of port ports, one of the plurality of hardware port ports is connected to the SRIO node in the video capture module, and each of the other hardware port ports in the plurality of hardware port ports is connected to one SRIO node of the video processing module, that is, each of the other hardware port ports is connected to one SRIO node in the video processing module.
Further, the video processing module comprises a plurality of video processing sub-modules, and each video processing sub-module is independent.
Further, each video processing sub-module is capable of sending requests simultaneously.
In this embodiment, in step S1, each video source of the video source module is numbered as follows;
| video source | |
| Video source | |
| 1 | 0x4517 |
| |
0x4557 |
| |
0x4597 |
| … | … |
In the step S2, serial numbers ID are allocated to the SRIO nodes in the video acquisition module and the video processing module, and the serial numbers are as follows:
| SRIO node | |
| SRIO node | |
| 1 | 0x0001 |
| |
0x0002 |
| |
0x0003 |
| … | … |
The step 3: the SRIO switching module configures a switching routing table based on the SRIO node number in step 2 and the port in the SRIO switching module, where the switching routing table is as follows:
| ID | Port |
| 0x0001 | 1 |
| 0x0002 | 2 |
| 0x0003 | 3 |
| … | … |
the above embodiments only describe the design principle of the present invention, and the shapes and names of the components in the description may be different without limitation. Therefore, a person skilled in the art of the present invention can modify or substitute the technical solutions described in the foregoing embodiments; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. An SRIO-based responsive video transmission method is characterized by comprising the following steps:
step S1: numbering each of a plurality of video sources;
step S2: distributing serial numbers ID to SRIO nodes in a video acquisition module and a video processing module; the video acquisition module comprises a plurality of acquisition circuits and an SRIO node; each acquisition circuit corresponds to one video source, acquires corresponding video data and selectively transmits the video data to an SRIO node in the video acquisition module according to a request, wherein the SRIO node is used for carrying out video data communication with the SRIO switching module; the SRIO switching module is used for data interaction among a plurality of SRIO nodes, and comprises a plurality of hardware port ports, wherein one port of the hardware port ports is connected with the SRIO node in the video acquisition module, and each port of the rest hardware port ports in the hardware port ports is connected with one SRIO node of the video processing module; the video processing module is divided into a plurality of video processing sub-modules according to functions, and each video processing sub-module comprises an SRIO node;
and step S3: the SRIO switching module configures a switching routing table based on the SRIO node number ID and a port; the switching routing table is used for representing the corresponding relation between the SRIO switching module hardware port and a plurality of SRIO node data interaction source addresses and destination addresses;
and step S4: for each video processing submodule, the following operations are performed:
the video processing sub-module sends a request to a port corresponding to the video processing sub-module in the SRIO switching module in a way of an SRIO doorbell transaction packet, and the request is used for requesting video data of the video source; the doorbell transaction packet comprises the serial number of a video source needing video processing currently, the serial number of an SRIO node in the video processing sub-module and the serial number of an SRIO node in the video acquisition module, wherein the SRIO node in the video processing sub-module is used as a source SRIO node, and the SRIO node in the video acquisition module is used as a destination SRIO node;
the SRIO switching module receives the doorbell transaction packet, analyzes a node number corresponding to a target SRIO node, and sends the doorbell transaction packet to a video acquisition module corresponding to the doorbell transaction packet according to the switching routing table;
and the corresponding video acquisition module receives the doorbell transaction packet, analyzes the serial number of the video source currently required to be subjected to video processing by the video processing submodule and the serial number of the source SRIO node, and transmits the video currently required to be subjected to video processing by the video processing submodule to the video processing submodule corresponding to the video source through a port in a mode of writing a data packet by adopting SRIO, so that the corresponding video processing submodule is responded.
2. The method of claim 1, wherein the video source generates video comprising a plurality of resolutions, frame rates, such as white light, thermography, and the like.
3. The method of claim 1, wherein an acquisition circuit in the video acquisition module is configured to receive video data in a video source module, and wherein an SRIO node in the video acquisition module is configured to convert video to SRIO packet format.
4. The method of claim 1, wherein the SRIO switching module comprises a plurality of port ports, one of the plurality of hardware port ports is connected to the SRIO node in the video capture module, and each of the remaining hardware port ports in the plurality of hardware port ports is connected to one SRIO node in the video processing module, i.e., each of the remaining hardware port ports is connected to one SRIO node in the video processing module.
5. The method of any of claims 1-4, wherein the video processing module comprises a plurality of video processing sub-modules, each video processing sub-module being independent.
6. The method of claim 5, wherein each video processing sub-module is capable of sending requests simultaneously.
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