Video frame management method, video recorder and computer readable storage medium

Abstract

The invention discloses a video frame management method, a video recorder and a computer readable storage medium, and the method comprises the steps: obtaining a real-time video stream, and storing video frames in the real-time video stream to a first queue; before the video frame at the head of the first queue is removed, in response to the fact that the video frame at the head of the first queue is a key frame, emptying a second queue and adding the key frame to the second queue; or, in response to the fact that the video frame at the head of the first queue is a difference frame, determining whether the difference frame is added behind the key frame in the second queue based on the number of the video frames in the second queue; wherein the key frame and the difference frame belong to the same picture group data; and feeding back the key frame in the first queue or the second queue to the client in response to a request of extracting the video stream from the client, and feeding back the difference frame corresponding to the key frame to the client when the difference frame further corresponds to the key frame. According to the scheme, the video frame decoding speed can be improved, and the waiting time of a user is shortened.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular to a video frame management method, a video recorder and a computer-readable storage medium. Background technique [0002] Along with the continuous improvement of the coverage rate of the video monitoring system, the user can view the real-time and / or stored video stream through the client, but in the prior art, after the user sends a request to extract the video stream at the client, the network video recorder ( After Network Video Recorder (NVR) receives the client's request, it will send a mandatory key frame (I frame) command to the camera, then wait for the key frame to arrive, and forward the key frame to the client. After that, the client starts to decode. Therefore, the client can start decoding only after receiving this key frame. The long time-consuming of the entire interaction process results in slow decoding of video frames on the client side, long w...

AI Technical Summary

Problems solved by technology

Therefore, the client can start decoding only after receiving this key frame. The entire interaction process takes a long time, resulting in slow decoding of video frames on the client side, long waiting time for the user, and poor user experience.

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