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Decoding method for IPB frame image group of concurrent video session

A decoding method and video session technology, applied in the field of video processing, can solve the problems of large buffer space and high decoding delay, and achieve the effects of reducing memory usage, avoiding repeated decoding, and ensuring frame rate.

Pending Publication Date: 2021-03-05
曙光网络科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the cached I frame, P frame, and B frame are repeatedly decoded, resulting in a high decoding delay.
In the multi-way concurrent scenario, the required cache space is relatively large

Method used

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  • Decoding method for IPB frame image group of concurrent video session
  • Decoding method for IPB frame image group of concurrent video session
  • Decoding method for IPB frame image group of concurrent video session

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Embodiment Construction

[0022] In order to better understand the above-mentioned purpose, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, a lot of specific details are set forth in order to fully understand the application, however, the application can also be implemented in other ways different from those described here, therefore, the protection scope of the application is not limited by the following disclosure Limitations of specific embodiments.

[0024] In the process of multi-channel concurrent network video session data processing, since it is impossible to independently decode each channel of network video session, it is necessary to use concurrent vid...

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Abstract

The invention discloses a decoding method for an IPB frame image group of a concurrent video session, and the method comprises the steps: S1, carrying out the caching and decoding of a received data segment, judging whether a last to-be-decoded video frame of the data segment is an I frame or not when the last to-be-decoded video frame of the data segment is not a complete frame, and storing the Iframe if the last to-be-decoded video frame is the I frame, and clearing the cached data segments, if not, executing the step S2; s2, performing I-frame encoding on the cached decoding tail frame, recording the encoded decoding tail frame as a spliced I frame, storing the spliced I frame and the last to-be-decoded video frame, recording the spliced I frame and the last to-be-decoded video frame as spliced frames, and clearing the cached data segments; and S3, splicing the spliced frame with the first frame of the next data segment, and decoding the spliced next data segment. By means of the technical scheme, the problem of frame loss during concurrent decoding is solved, meanwhile, the storage space occupied by the cache data is reduced, and the real-time performance of concurrent decoding is optimized.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular, to a method for decoding IPB frame image groups of concurrent video sessions. Background technique [0002] A video session takes a group of pictures as a complete unit of decoding. The group of pictures starts with an I frame, followed by multiple video frames to be decoded whose frame types are P frames and B frames. Among them, I frames can be decoded independently, and P frames can be decoded independently. A frame needs to be decoded depending on the decoding result of the previous I frame or P frame, and a B frame needs to be decoded depending on the decoding result of the previous I frame or P frame and the subsequent I frame or P frame. For image groups including I frames, P frames, and B frames, such as figure 1 As shown, the GOP type is the IPB frame type at this time, and the acquisition sequence, encoding sequence, storage sequence, decoding sequence...

Claims

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Application Information

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IPC IPC(8): H04N19/172H04N19/85H04L29/08
CPCH04N19/172H04N19/85H04L67/568
Inventor 张玉晓徐珠宝赵志伟刘长鑫王继五孙浩贺志强李静刘立
Owner 曙光网络科技有限公司
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