High-performance video forwarding method based on multiple processes

Abstract

The invention provides a high-performance video forwarding method based on multiple processes, which comprises the following steps of: monitoring a forwarding request of a user through a monitoring process, after receiving the forwarding request of the user, firstly inquiring a forwarding mapping table, judging whether a video is watched by the user or not, and if yes, distributing the request toa corresponding forwarding process; If the user is not looking up, starting a new forwarding process, and the corresponding relation between the forwarding process and adding the camera into the mapping table; after receiving a request that the user stops forwarding, inquiring a forwarding mapping table, inquiring a forwarding process, and sending a message of stopping forwarding; The forwarding process stops forwarding the video after receiving the message of stopping forwarding, inquires a user table of the forwarding process, exits the process if the number of the user tables is 0, and sends a normal exit message to the monitoring process; and the monitoring process detects the state of the forwarding process at regular time, and sends a debugging abnormality message to the user if finding that the process exits abnormally.

Description

technical field [0001] The invention belongs to the technical field of video monitoring, and relates to a video monitoring platform stream media forwarding technology, in particular to a multi-process-based high-performance video forwarding method. Background technique [0002] In video surveillance, due to the limitations of computing or network resources of front-end cameras, DVRs, NVRs and other monitoring equipment, it is impossible to meet the needs of multiple users to watch real-time videos at the same time. This is because the traditional streaming media forwarding technology adopts a multi-threading technical solution, and the forwarding unit is based on a thread, and multiple forwarding threads share the memory and computing resources of the same process. Since multiple threads share the memory address space, when an exception occurs in one thread, the entire forwarding process will exit abnormally, affecting other forwarding threads running normally, resulting in ...

AI Technical Summary

Problems solved by technology

Since multiple threads share the memory address space, when an exception occurs in one thread, the entire forwarding process will exit abnormally, affecting other forwarding threads running normally, resulting in poor robustness of the forwarding process

Since the operating system schedules tasks in units of processes, multiple threads need to share the computing time on average, which cannot make full use of the computing resources of the computer.

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